Contents of /branches/WIP-pyshapelib-bramz/ChangeLog

2003-06-19  Bernhard Herzog  <[email protected]>

        * Doc/thuban.dtd (classification): Correct the content model of
        the classification element.
        (projection): Add the "name" attribute

2003-06-19  Frank Koormann   <[email protected]>

        MERGE from the greater-ms3 branch.

        * Thuban/UI/scalebar.py (ScaleBar.DrawScaleBar): Apply conversion to
        scale if projection is latlong to get better estimate.

        Fix problem of hidden properties dialog under windows after double
        click on layer tree:
        The tree control always gets an Expanded / Collapsed event after 
        the ItemActivated  on double click, which raises the main window again.         We add a second ItemActivated event to the queue, which simply 
        raises the already displayed window.

        * Thuban/UI/legend.py (LegendTree.__init__): Instance variable 
        raiseProperties initialized to prevent endless loops
        (LegendTree._OnItemActivated): Depending on self.raiseProperties
        simply raise the properties or open the dialog and issue a second
        event.

2003-06-18  Jonathan Coles   <[email protected]>

        * setup.py: Fix a few problems that occured under Windows.

2003-06-18  Jonathan Coles   <[email protected]>

        When Thuban loaded the map was redrawn twice because the
        legend was being opened after the mainwindow was created
        and not during its creation. This meant the map was drawn
        initially and then had to be redrawn when the legend 
        caused the display to change. Now the legend is opened
        in the mainwindow constructor which resolves this issue.

        Also, although we were checking for the existence of 
        gdal and gdalwarp modules, the gdalwarp extension was
        still being compiled (which may fail if the system doesn't
        have gdal installed). the build_ext command to setup.py
        now accepts the flags --with-gdal and --without-gdal.
        If --without-gdal is specified setup.py will try to 
        use the gdal parameters specified by gdal-config. Under
        windows, those parameters have to be set in setup.py
        as with proj4 an wxWindows.

        * setup.py: Use a list instead of seperate variables for
        extension parameters so we can create a generic function
        that runs an appropriate *-config script.
        (run_cs_script): Renamed from run_wx_script and modified
        to accept a second argument which is a list of lists to
        be filled in by the values returned from running the command.
        (thuban_build_ext): New. Extends the build_ext command and
        provides the options --with-gdal/--without-gdal which then
        optionally includes the gdalwarp extension.

        * Thuban/Model/resource.py: First check if we can import
        the gdalwarp Thuban extension before checking for gdal.
        Also added some comments.
        
        * Thuban/UI/legend.py (ScaleBarBitmap.__SetScale): Check if
        the map is None which may be the case if none has been loaded
        yet.

        * Thuban/UI/main.py (main): Remove call to ShowLegend.

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Call ShowLegend().

        * Thuban/UI/renderer.py: Check for gdal support before importing
        gdalwarp.
        (MapRenderer.render_map): Only try to optimize if we have gdal
        support otherwise nothing will get drawn.

        * Thuban/UI/view.py (MapCanvas.FitMapToWindow): This may be called 
        during startup before a map has been created. Check if map is None 
        before using it and do nothing if it is.

2003-06-17  Jonathan Coles   <[email protected]>

        Fix the problem with raster layers under Windows that caused
        Thuban to crash. The view should respond to layer projection
        changed events to update the display. Changes to a projection
        should not cause the map to be set to full extent.
        
        * Thuban/UI/view.py (MapCanvas.__init__): New instance variable
        current_map_proj to remember the current map projection so that
        when the projection changes we know what the previous projection
        was. 
        (MapCanvas.SetMap): Unsubscribe and subscribe to 
        LAYER_PROJECTION_CHANGED events.
        (MapCanvas.projection_changed): Split into two methods that respond
        to map and layer projection changes.
        (MapCanvas.map_projection_changed): New. Takes the current view and
        projects it using the new projection. This does not cause the
        map to be redrawn at full extent.
        (MapCanvas.layer_projection_changed): New. Cause a redraw which
        will draw each layer in its new projection.
        
        * extensions/thuban/bmpdataset.cpp (BMPDataset::Open): Call
        VSIFClose() not VSIFCloseL() to close the file. Fixes a crash
        under Windows.
        
        * extensions/thuban/gdalwarp.cpp (MFILENAME): Padding should be
        to twice sizeof(void*) because there are two digits for each
        hex byte.

2003-06-16  Bernhard Herzog  <[email protected]>

        Update to the layer interface: Direct access to the table,
        shapetable, shapefile and filename attributes is now actively
        deprecated by issuing deprecation warnings for all places where
        this happens.

        * Thuban/Model/layer.py (Layer.__getattr__): New. Implement access
        to the instance variables table, shapetable, shapefile and
        filename via __getattr__ so that we can issue a deprecation
        warning.
        (Layer.SetShapeStore): Don't set the deprecated instance variables
        any more
        (Layer.SetShapeStore): Don't use deprecated layer instance
        variables
        (Layer.Destroy): No need to explicitly remove the instance
        variables any more
        (Layer.GetFieldType, Layer.Shape): Don't use deprecated layer
        instance variables

        * Thuban/UI/classgen.py (ClassGenDialog.__init__)
        (GenUniformPanel._OnRetrieve, GenUniquePanel._OnRetrieve)
        (GenQuantilesPanel.GetList, GenQuantilesPanel.OnRetrieve): Don't
        use deprecated layer instance variables

        * Thuban/UI/classifier.py (Classifier.__init__): Don't use
        deprecated layer instance variables

        * Thuban/UI/identifyview.py (IdentifyListCtrl.selected_shape)
        (IdentifyGridCtrl.selected_shape): Don't set the deprecated layer
        instance variables

        * Thuban/UI/tableview.py (LayerTableGrid.select_shapes): Don't use
        deprecated layer instance variables

        * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Don't use
        deprecated layer instance variables

        * Thuban/Model/save.py (SessionSaver.write_layer): Don't use
        deprecated layer instance variables

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer)
        (MapRenderer.polygon_render_param): Don't use deprecated layer instance
        variables

        * test/runtests.py (main): Turn Thuban's deprecation warnings into
        errors so that they're cought by the tests

        * test/test_load.py (TestSingleLayer.test): Don't use deprecated
        layer instance variables

2003-06-16  Jonathan Coles   <[email protected]>

        Fix a problem under Windows whereby if the user double-clicks on a
        layer in the legend that tree item will expand or collapse as well
        as open the layer properties dialog. The state of the tree item
        should not be affected.

        * Thuban/UI/legend.py (LegendTree.__init__): Add instance variable
        preventExpandCollapse and subscribe to expanding and collapsing 
        events.
        (LegendTree.OnItemExpandCollapse): New. Responds to expanding and 
        collapsing events and will veto the event if it has been triggered 
        by the user double clicking on a layer.
        (LegendTree._OnItemActivated): Set preventExpandCollapse to indicate
        that an expanding/collapsing event should be vetoed.

2003-06-13  Bernhard Herzog  <[email protected]>

        * Thuban/UI/classifier.py (Classifier.OnClose)
        (Classifier.map_layers_removed)
        (Classifier.layer_shapestore_replaced): Unsubscribe the messages
        in OnClose and not in map_layers_removed or
        layer_shapestore_replaced to make sure it always happens when the
        dialog is closed

2003-06-13  Jonathan Coles   <[email protected]>

        This puts back a fix for Windows where a panel is needed so that
        the background of the table view appears correctly.

        * Thuban/UI/tableview.py (TableFrame.__init__): Add a panel
        object that can be used by derived classes to place any 
        controls (including the grid) onto.
        (QueryTableFrame.__init__): Use the panel as the parent window
        for all the controls. Reparent the grid so that the panel is
        the parent. Call UpdateStatusText() to correctly initialize
        the status bar.

2003-06-13  Jonathan Coles   <[email protected]>

        * Thuban/UI/dialogs.py (ThubanFrame): New: a class that inherits
        from wxFrame (as opposed to wxDialog like the other classes)
        but otherwise behaves like the other classes. This is needed
        for the TableView which isn't really a dialog and needs to
        have a status bar and control buttons.

        * Thuban/UI/tableview.py (TableGrid.__init__): Create an 
        instance variable to keep track of how many rows are selected.
        Subscribe once to the the events we are interested in.
        (ThubanGrid.OnRangeSelect): Only handle event if event handling
        hasn't been turned off.
        (ThubanGrid.OnSelectCell): Only handle event if event handling
        hasn't been turned off.
        (ThubanGrid.ToggleEventListeners): Rather than subscribe None
        as an event listener (which changes the event handler stack)
        simply set an instance variable to False. This is checked in
        the event handlers.
        (ThubanGrid.GetNumberSelected): Return the number of currently
        selected rows.
        (TableFrame): Inherit from ThubanFrame so we can have a 
        status bar and control buttons.
        (QueryTableFrame.__init__): Create a status bar. Fixes RTbug #1942.
        Explicitly set which items are selected in the operator choice and
        action choice so there is always a valid selection. Fixes RTbug #1941.
        Subscribe to grid cell selection events so we can update the
        status bar.
        (QueryTableFrame.UpdateStatusText): Update the status bar with
        how many rows are in the grid, how many columns, and how many
        rows are selected.
        (QueryTableFrame.OnGridSelectRange, QueryTableFrame.OnGridSelectCell):
        Call UpdateStatusText when cells are (de)selected.
        (QueryTableFrame.OnQuery): Use the string value in the value
        combo if either the selected item index is 0 or if the string
        cannot be found in the predefined list (this happens if the
        user changes the text). Fixes RTbug #1940.
        Only turn off the grid event listeners if there a query comes
        back with a none empty list of ids. in the case that the list
        is empty this causes a grid.ClearSelection() call to actually
        clear the grid selection which causes the selected items in
        the map to be deselected. Fixes RTbug #1939.

        * test/test_save.py (XMLWriterTest.Encode): Check return values.
        Fixes RTbug #1851.

2003-06-13  Bernhard Herzog  <[email protected]>

        * Thuban/UI/identifyview.py (IdentifyView.__init__): Call
        self.selected_shape with the current selection to make sure the
        contents of the dialog are up to date when it's shown for the
        first time.
        The dialog used to work without this by luck. The recent fix to
        the connector module 'broke' a 'feature' the identify view was
        relying on, i.e that subscribing to a message in response to
        receiving a message of that type would mean that the new
        subscriber would also be called for the same message.
        
2003-06-12  Jonathan Coles   <[email protected]>

        * extensions/thuban/gdalwarp.cpp: Removed debug printing as
        the image is rendered. Fixes RTbug #1937.

2003-06-12  Jonathan Coles   <[email protected]>

        * Thuban/Lib/fileutil.py: As is done under Windows, create the
        user directory if it doesn't exist on a posix system. 
        Fixes RTbug #1815.

        * Thuban/Model/resource.py (get_user_proj_files): Moved the
        called to get_application_dir here, so that the directory
        will only be called if this method is invoked.

        * Thuban/UI/projdialog.py (ProjFrame.__DoOnProjAvail): Clear
        the projfilepath if no projection is selected.

2003-06-12  Jonathan Coles   <[email protected]>

        * Thuban/UI/legend.py (ScaleBarBitmap.__SetScale): Don't draw
        the scalebar if the current map has no projection set.

        * Thuban/UI/projdialog.py (ProjFrame.__DoOnProjAvail): Set the
        projfilepath label to just the basename of the projection file
        rather than include the entire path.

        * Thuban/Model/resource.py: Fix missed proj functions that 
        needed to be renamed.

2003-06-12  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: Removed assert statements that
        tested if the variable was an instance of Color. 

        * Thuban/Model/color.py (Color): Remove commented code that isn't
        used.
        (Transparent): Renamed from NoColor. Doesn't inherit from Color.
        Fixes RTbug #1835.
        (Transparent.__eq__, Transparent.__ne, Transparent.__repr): New.
        Needed now that the class doesn't inherit from Color.

2003-06-12  Jonathan Coles   <[email protected]>

        * test/test_save.py (XMLWriterTest.testEncode): Explicitly
        check unicode strings.

        * test/test_layer.py: Check for existence of gdal.

2003-06-12  Jonathan Coles   <[email protected]>
    
        * Thuban/Model/xmlreader.py: New. Contains the XMLReader class
        that was in load.py

        * Thuban/Model/xmlwriter.py: New. Contains the XMLWriter class
        that was in save.py

2003-06-12  Jonathan Coles   <[email protected]>

        This is largely a collection of bug fixes. We also handle the
        case where gdal is not on the system. The XMLReader and XMLWriter
        classes were moved into there own files to resolve some circular
        import references and because they shouldn't really be in the
        file that is dediciated to reading/writing session files since
        they are also used elsewhere.

        * Thuban/Model/classgen.py: Renamed functions to follow the
        function_names_with_underscores style. Fixes RTbug #1903.
        (calculate_quantiles): Raise ValueError if 'percents' is invalid.

        * Thuban/Model/layer.py: Import gdal only if it available.
        (RasterLayer): Handle the case where the gdal library is unavailable.
        Addresses RTbug #1877.

        * Thuban/Model/load.py (XMLReader): Moved into seperate file
        xmlreader.py.

2003-06-12  Jonathan Coles   <[email protected]>

        This is largely a collection of bug fixes. We also handle the
        case where gdal is not on the system. The XMLReader and XMLWriter
        classes were moved into there own files to resolve some circular
        import references and because they shouldn't really be in the
        file that is dediciated to reading/writing session files since
        they are also used elsewhere.

        * Thuban/Model/classgen.py: Renamed functions to follow the
        function_names_with_underscores style. Fixes RTbug #1903.
        (calculate_quantiles): Raise ValueError if 'percents' is invalid.

        * Thuban/Model/layer.py: Import gdal only if it available.
        (RasterLayer): Handle the case where the gdal library is unavailable.
        Addresses RTbug #1877.

        * Thuban/Model/load.py (XMLReader): Moved into seperate file
        xmlreader.py.

        * Thuban/Model/save.py (escape, XMLWriter): Moved into seperate
        file xmlwriter.py.

        * Thuban/Model/resource.py: Renamed functions to following the
        function_names_with_underscores style.
        (has_gdal_support): New function that returns true if the gdal 
        library is available. Addresses RTbug #1877.

        * Thuban/UI/application.py (ThubanApplication.OpenSession):
        Display a message box if the gdal library is not available, but
        only if there are any layers that would use it. Addresses RTbug #1877.

        * Thuban/UI/classgen.py: Use renamed projection resource functions.
        (GenUniformPanel.__CalcStepping): Fix a slight discrepency 
        when using integers versus floats.

        * Thuban/UI/mainwindow.py (_has_gdal_support): New. Used to
        determine if the "Add Image Layer" menu option should be 
        greyed out or not. Addresses RTbug #1877.

        * Thuban/UI/projdialog.py: Use renamed projection resource functions.

        * Thuban/UI/renderer.py (MapRenderer.render_map): Only try to 
        optimize if a raster layer is visible. Fixes RTbug #1931.
        Only draw the raster layer if the gdal library is available.
        Addresses RTbug #1877.

        * test/test_classgen.py: Add tests for generate_singletons,
        generate_uniform_distribution, generate_quantiles. Fixes RTbug #1903.
        (test_calculate_quantiles): Fix some tests to catch the new
        ValueError that is raised.

        * test/test_proj.py: Use renamed projection resource functions.

        * test/test_save.py (SaveSessionTest.testClassifiedLayer): New
        test for saving classified layers. Fixes RTbug #1902.
        (XMLWriterTest): New. Tests the XMLWriter class. Fixes RTbug #1851.

2003-06-12  Jan-Oliver Wagner <[email protected]>

        Fix for http://intevation.de/rt/webrt?serial_num=1900.

        * Thuban/UI/multiplechoicedialog.py: New. A multiple choice dialog.

        * Thuban/UI/mainwindow.py: import wxMultipleChoiceDialog from
        multiplechoicedialog.py rather than from the wxPython library.

2003-06-11  Frank Koormann  <[email protected]>

        * Thuban/Lib/fileutil.py (get_application_dir): Minor stability
        update.

2003-06-11  Frank Koormann  <[email protected]>

        * Thuban/Lib/fileutil.py (get_application_dir): New function to
        determine the absolute .thuban/thuban directory under 
        "posix" (os.expanduser) and "nt" (read AppData registry key). 

        * Thuban/Model/resource.py: Use get_application_dir

        * Thuban/UI/application.py (ThubanApplication.read_startup_files): 
        Use get_application_dir.

2003-06-10  Bernhard Herzog  <[email protected]>

        * Thuban/UI/tableview.py (LayerTableFrame.__init__): Subscribe to
        the messages MAP_LAYERS_REMOVED messages
        (LayerTableFrame.OnClose): Unsubscribe from it.
        (LayerTableFrame.map_layers_removed): New. Receiver for
        MAP_LAYERS_REMOVED. Close the dialog when the layer whose the
        dialog is showing is removed.

2003-06-10  Bernhard Herzog  <[email protected]>

        * Thuban/Lib/connector.py (Connector.Issue): Iterate over a copy
        of the receivers list so that unsubscribing in a receiver doesn't
        modify it while iterating over it.

        * test/test_connector.py
        (ConnectorTest.test_disconnect_in_receiver): New. Test whether
        unsubscribing in a receiver works correctly. See docstring for
        details

2003-06-10  Bernhard Herzog  <[email protected]>

        * Thuban/Model/messages.py (LAYER_SHAPESTORE_REPLACED): New
        message.

        * Thuban/Model/layer.py (Layer.SetShapeStore): Send
        LAYER_SHAPESTORE_REPLACED when the shapestore changes. A
        LAYER_CHANGED will still be sent if the classification changes.

        * Thuban/UI/classifier.py (Classifier.__init__): Add the map as
        parameter so we can subscribe to some of its messages
        (Classifier.__init__): Subscribe to the map's MAP_LAYERS_REMOVED
        and the layer's LAYER_SHAPESTORE_REPLACED
        (Classifier.unsubscribe_messages): New. Unsubscribe from message
        subscribed to in __init__
        (Classifier.map_layers_removed)
        (Classifier.layer_shapestore_replaced): receivers for the messages
        subscribed to in __init__. Unsubscribe and close the dialog

        * Thuban/UI/mainwindow.py (MainWindow.OpenLayerProperties): Pass
        the map to the Classifier dialog

        * test/test_layer.py (SetShapeStoreTests): Derive from
        SubscriberMixin as well so we can test messages
        (SetShapeStoreTests.setUp): Subscribe to some of the layer's
        messages
        (SetShapeStoreTests.tearDown): Clear the messages again
        (SetShapeStoreTests.test_sanity): Expand the doc-string and check
        for the modified flag too
        (SetShapeStoreTests.test_set_shape_store_modified_flag): New test
        to check whether SetShapeStore sets the modified flag
        (SetShapeStoreTests.test_set_shape_store_different_field_name)
        (SetShapeStoreTests.test_set_shape_store_same_field)
        (SetShapeStoreTests.test_set_shape_store_same_field_different_type):
        Add tests for the messages. This checks both the new
        LAYER_SHAPESTORE_REPLACED and the older LAYER_CHANGED

2003-06-06  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/mainwindow.py: Improved and partly added help texts for
        the menu items.

2003-06-05  Frank Koormann  <[email protected]>

        * Thuban/UI/identifyview.py (IdentifyView.__init__):
        Layout reimplemented without panel. Make life easier to fit the list
        in the dialog.

2003-06-05  Frank Koormann  <[email protected]>

        * Thuban/UI/projdialog.py (ProjFrame.__init__): Fill the projchoice
        once on initialisation (Former implementation resulted in multiple
        entries for each projection).
        (ProjFrame.__FillAvailList): selectProj as second optional parameter, 
        if set, select the projection found under the specified name. This 
        overwrites any other selection estimate.
        Removed projchoice filling from this method.
        (ProjFrame._OnSave, ProjFrame._OnAddToList): 
        Updated call of ProjFrame.__FillAvailList
        (LCCPanel._DoLayout): Moved parameter controls in more common order.

        * Resources/Projections/defaults.proj: Extended defaults representing
        various common European projections.

2003-06-05  Frank Koormann  <[email protected]>

        * Thuban/UI/identifyview.py (IdentifyView.__init__): 
        Use ListCtrl instead of GridCtrl

        * Thuban/Model/resource.py: 
        Guess location of .thuban directory from tempdir parent directory.

        * Thuban/UI/application.py (ThubanApplication.read_startup_files):
        Guess location of .thuban directory from tempdir parent directory.

2003-06-04  Bernhard Herzog  <[email protected]>

        Do not cache the values returned by the tree widget's
        GetFirstChild and GetNextChild methods because it led to lots of
        segfaults. The new way requires more brute force but is more
        reliable.

        * Thuban/UI/legend.py (LegendTree.__init__): Remove instance
        variable layer2id
        (LegendTree.find_layer): New method to do with brute force what
        layer2id tried to accomplish
        (LegendTree._OnMsgLayerChanged)
        (LegendTree._OnMsgLayerTitleChanged, LegendTree.__ShowHideLayer):
        Use find_layer instead of layer2id
        (LegendTree.__RemoveLayer, LegendTree.__AddLayer): No need to
        update layer2id anymore
        (LegendTree._OnMsgMapLayersRemoved) 
        (LegendTree._OnMsgMapLayersAdded): Get by without layer2id.

2003-06-03  Thomas Koester  <[email protected]>

        * Thuban/Model/classgen.py (GenQuantiles0): New function.

2003-06-02  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (layer_rename command, table_rename command):
        New commands.
        (main_menu): Add the new commands.
        (MainWindow.TableRename): New. Implementation of the table_rename
        command.
        (MainWindow.RenameLayer): New. Implementation of the layer_rename
        command.

        * Thuban/Model/session.py (Session.AddTable): call self.changed to
        set the modified flag

        * test/test_session.py (TestSessionSimple.test_add_table): Test
        whether the modified flag is set properly

        * Thuban/Model/base.py (TitledObject.SetTitle): Call changed
        instead of issue so that the modified flags get updated.

        * test/test_base.py (SomeTitledObject): Derive from Modifiable
        instead of Publisher to reflect reality better and to accomodate
        the fact that SetTitle now calls changed instead of issue

2003-06-02  Bernhard Herzog  <[email protected]>

        * Thuban/UI/classgen.py (GenQuantilesPanel.GetList): Resource
        acquisition has to happen before the try in a try-finally.

2003-06-02  Bernhard Herzog  <[email protected]>

        * Thuban/UI/legend.py (LegendTree._OnMsgMapLayersRemoved): It's
        possible that a layer is removed that is not currently selected in
        the legend so don't check for this.

2003-05-30  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.Destroy): Set all instance
        variables to None that have direct or indirect references to
        shapefiles or dbf files to make sure that they do go away and the
        files are closed.

2003-05-30  Bernhard Herzog  <[email protected]>

        * Thuban/UI/legend.py (LegendTree.GetRootItem): Reset
        availImgListIndices when a new image list is created
        
2003-05-30  Bernhard Herzog  <[email protected]>

        * Thuban/UI/legend.py (LegendTree.__init__): New instance variable
        changing_selection to indicate whether the LegendTree code itself
        is currently changing the selection
        (LegendTree.normalize_selection): New method to normalize the
        selection by selecting the layer item even if the user clicked on
        the classification.
        (LegendTree._OnSelChanged): normalize the selection. This works
        around a bug in wx which doesn't keep track of the selection
        properly when subtrees are deleted.

2003-05-30  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py (MapCanvas.set_view_transform): Limit the
        maximum and minimum scale factors.

        * test/test_classgen.py (ClassGenTest.test): Update to reflect the
        changes in classgen.py

2003-05-30  Jonathan Coles   <[email protected]>

        * Thuban/Model/classgen.py: Remove ClassGenerator class but make
        all the methods functions. Fixes RTBug #1903.

        * Thuban/Model/map.py (Map.TopLayer, Map.BottomLayer): Renamed
        to MoveLayerToTop and MoveLayerToBottom respectively. Fixes
        RTBug #1907.

        * Thuban/UI/classgen.py: Use classgen functions that were part
        of the ClassGenerator class. Put try/finally blocks around
        code that uses wxBeginBusyCursor()/wxEndBusyCursor(). Fixes
        RTBug #1904.

        * Thuban/UI/classifier.py: Remove unused import of ClassGenerator.

        * Thuban/UI/legend.py: The legend was cleared and repopulated any
        time something changed which caused some state to be lost such
        as which children were expanded or collapsed. Fixes RTBug #1901.
        (LegendTree._OnMsgMapLayersAdded): Add only new layers.
        (LegendTree.__OnMsgMapLayersRemoved): Remove layers that exist in 
        the legend but not in the map.
        (LegendTree.__FillTree): Move main functionality out into smaller
        methods that can be used by other methods.
        (LegendTree.__FillTreeLayer): Reuse old slots in the image list
        if they are available.
        (LegendTree.DeleteAllItems): Renamed from __DeleteAllItems so
        that we override the wxTreeCtrl method. Iterate over children
        and call __RemoveLayer.
        (LegendTree.__AddLayer): New. Add a new layer to the legend.
        (LegendTree.__RemoveLayer): Remove a layer from the legend.
        (LegendTree.DeleteChildren): New, overrides wxTreeCtrl method.
        Should only be called with the id of a layer branch.
        (LegendTree.GetRootItem): New, overrides wxTreeCtrl method.
        Returns the root item or creates one if necessary.

        * Thuban/UI/renderer.py (MapRenderer.draw_raster_layer): Call
        ProjectRasterFile with tuple arguments instead of strings.

        * Thuban/UI/tableview.py (QueryTableFrame.OnQuery): Wrap code
        with try/finally. Fixes RTBug #1904.

        * Thuban/UI/view.py (MapCanvas.OnPaint): Wrap code
        with try/finally. Fixes RTBug #1904.
        (MapCanvas.FitSelectedToWindow): If a single point is selected
        simply center it on the display. Fixes RTBug #1849.

        * extensions/thuban/gdalwarp.cpp: Removed code that allowed gdalwarp
        to be compiled as a standalone app. Now the code can only be
        called from Python which simplifies the parameter passing.
        (ProjectRasterFile): Handle Python arguments. Remove code that
        checks for a destination dataset. Add more clean up code.

        * test/test_map.py (TestMapWithContents.test_raise_layer_top,
        TestMapWithContents.test_lower_layer_bottom): 
        Test Map.MoveLayerToTop() and Map.MoveLayerToBottom() respectively.
        Fixes RTBug #1907.

        * Thuban/UI/mainwindow.py (MainWindow.ToggleLegend): Apply a full
        extent to the map when the legend is toggled. Fixes RTBug #1881.

2003-05-29  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/tableview.py (LayerTableFrame.OnClose): Bug-fix: Now
        unsubscribes all that is subcribed in __init__.

2003-05-28  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.DuplicateLayer)
        (MainWindow.CanDuplicateLayer): New methods to implement the
        Layer/Duplicate command.
        (layer_duplicate command): New.
        (main_menu): Add layer_duplicate to the Layer menu.

2003-05-28  Bernhard Herzog  <[email protected]>

        * Thuban/UI/tableview.py (NullRenderer.Draw): New. Our own
        renderer so that NULL/None values get displayed differently (by a
        gray rectangle).
        (TableGrid.__init__): Override the default renderers

2003-05-28  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.SetShapeStore): Set the
        classification to "None" if the type of the field has changed.

        * test/test_layer.py (SetShapeStoreTests): New. Class with a few
        test for the Layer.SetShapeStore method

2003-05-28  Jan-Oliver Wagner <[email protected]>

        * Thuban/Model/layer.py (Layer.TreeInfo): Fixed a bug (a layer
        does not necessarily have a filename).

2003-05-28  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.TableClose, MainWindow.TableShow):
        sort the selection list for the dialog.

2003-05-28  Frank Koormann  <[email protected]>

        * extensions/thuban/wxproj.cpp 
        (project_point): Removed cast to int for projected point coordinates.
        (shape_centroid): Return last point if all polygon vertices fall 
        to one point.
 
2003-05-28  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (_can_unjoin): Add doc-string and cope
        with layers that don't have shapestores, i.e. raster layers.

2003-05-28  Bernhard Herzog  <[email protected]>

        * Thuban/Model/table.py (DBFTable.__init__): Omit the extension
        when determining the title from the filename.

        * test/test_dbf_table.py (TestDBFTable.test_title): Update to
        reflect changes in the way the title is derived from the filename

2003-05-28  Frank Koormann  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.TableShow): 
        Added wxDEFAULT_DIALOG_STYLE to show table dialog styles.

2003-05-27  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.delegated_messages): Also
        delegate SelectedLayer.
        (MainWindow.LayerUnjoinTable): Implement.
        (_can_unjoin): New. Helper function for the sensitivity of the
        layer/unjoin command.

        * Thuban/Model/data.py (ShapefileStore.OrigShapeStore)
        (DerivedShapeStore.OrigShapeStore): New. Return the original
        shapestore. Used to figure out how to unjoin.
        (DerivedShapeStore.Shapefile): Fix a typo.

2003-05-27  Bernhard Herzog  <[email protected]>

        * Thuban/UI/join.py (JoinDialog): Extend to handle layer joins as
        well
        (JoinDialog.__init__): Use the layer parameter and only build the
        left choice when a layer is given
        (JoinDialog.OnJoin): Handle layer joins as well
        (JoinDialog.OnLeftTable, JoinDialog.OnRightTable): Handle the case
        that the user selects the "Select..." item. The sensitivitly
        updating is now in update_sensitivity
        (JoinDialog.y): New method to refactor the sensitivity update of
        the join button into its own method.

        * Thuban/UI/mainwindow.py (MainWindow.LayerJoinTable): Implement.

2003-05-27  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (table_close command): Make it sensitive
        iff there are unreferenced tables in the session

2003-05-27  Bernhard Herzog  <[email protected]>

        * Thuban/Model/messages.py (TABLE_REMOVED): New message.

        * Thuban/Model/session.py (Session.UnreferencedTables): New method
        to return tables that are not referenced by other tables or shape
        stores and can be removed.
        (Session.RemoveTable): Issue a TABLE_REMOVED message after
        removing the table

        * Thuban/UI/mainwindow.py: Remove unused imports
        (MainWindow.TableClose): Implement.

        * Thuban/UI/tableview.py (TableFrame.__init__): Subscribe to some
        messages so that the frame will be automatically closed when a new
        session is opened or the table is removed.
        (TableFrame.OnClose): Unsubscribe the Subscriptions made in
        __init__
        (TableFrame.close_on_session_replaced)
        (TableFrame.close_on_table_removed): New. Subscribers that close
        the window

        * test/test_session.py (TestSessionMessages.test_remove_table)
        (TestSessionSimple.test_remove_table): Move the test to
        TestSessionSimple and add test for the TABLE_REMOVED message
        (TestSessionBase.setUp): Also subscribe to TABLE_REMOVED
        (TestSessionSimple.test_unreferenced_tables) New. Test for the
        UnreferencedTables method.
        (UnreferencedTablesTests): New. Class with some more sophisticated
        tests for UnreferencedTables.

2003-05-27  Frank Koormann  <[email protected]>

        * Thuban/UI/tableview.py (QueryTableFrame.__init__): The "_S_election"
        display has some unwanted side effects. Removed again.
 
2003-05-27  Frank Koormann  <[email protected]>

        * Resources/Bitmaps/legend_icon_layer.xpm: New, icon for legend.

        * Thuban/UI/legend.py (LegendTree.__FillTree): Use "legend_icon_layer" 

2003-05-27  Jan-Oliver Wagner <[email protected]>

        * test/test_menu.py (MenuTest.test): Added test for
        Menu.RemoveItem().

        * Thuban/UI/menu.py (Menu.RemoveItem): New. Remove an item from
        the menu.

2003-05-27  Frank Koormann  <[email protected]>
        
        Nonmodal dialogs without parent (i.e. they can fall behind the main
        window)

        * Thuban/UI/mainwindow.py (MainWindow.OnClose): Explicitly destroy
        all dialogs in the dialogs dictionary and the canvas.

        * Thuban/UI/dialogs.py (NonModalNonParentDialog): New class, without
        parent, i.e. can fall behind other windows.
        (NonModalDialog.OnClose): Check is dialog is in mainwindow.dialog
        dictionary before removing it.

        * Thuban/UI/classifier.py: Dialog derived from NonModalNonParentDialog

        * Thuban/UI/projdialog.py: Dialog derived from NonModalNonParentDialog
        * Thuban/UI/tableview.py: Dialog derived from NonModalNonParentDialog
        * Thuban/UI/tree.py: Dialog derived from NonModalNonParentDialog

2003-05-27  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.ShowTableView): New. Open a
        tableview dialog
        (MainWindow.TableShow): Use ShowTableView to open the dialogs.
        Also, don't use the table's titles as the dialog names. The titles
        aren't guaranteed to be unique.
        (MainWindow.TableOpen): Open a table view dialog after opening the
        table

2003-05-27  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py: Remove the Table/Hide menu item. Its
        effect can be achieved by simply closing the window showing the
        table.
        (MainWindow.TableHide): Removed.
        (main_menu): Removed "table_hide"

2003-05-27  Frank Koormann  <[email protected]>

        Fix legend tree display problems under Win32

        * Thuban/UI/legend.py:  BMP_SIZE_W = 15
        (LegendTree.__FillTree): Display "legend_icon_map.xpm" with layer title.
        (LegendTree.__FillTreeLayer): Explicitely set SelectedImage.

        * Resources/Bitmaps/legend_icon_map.xpm: New icon for legend.

2003-05-27  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/menu.py (Menu.InsertSeparator): Additional optional parameter
        'after' now allows to insert separators almost anywhere in the menu.

2003-05-27  Frank Koormann  <[email protected]>

        * Thuban/UI/tableview.py (QueryTableFrame.__init__): Underline the 
        "S" of selection box label to hint on hot key (Alt-S). Works under 
        Win32 but is ignored under GTK.

2003-05-26  Frank Koormann  <[email protected]>

        * Thuban/UI/projdialog.py (ProjFrame.__do_layout, ProjPanel._DoLayout):
        Center Choices.

2003-05-26  Bernhard Herzog  <[email protected]>

        Remove the Precision methods again. They're too DBF specific to be
        part of the table interface and they're only used in table_to_dbf
        anyway.
        
        * Thuban/Model/transientdb.py (TransientTableBase.Width):Use a
        fixed precision of 12 for doubles.
        (TransientTableBase.Precision): Removed
        (AutoTransientTable.Width): Delegate to self.table.

        * Thuban/Model/table.py (DBFTable.Precision)
        (MemoryTable.Precision): Removed.
        (MemoryTable.Width): Use a fixed precision of 12 for doubles.
        (table_to_dbf): Use a fixed precision of 12 for floats unless the
        column object specifies something else.

        * test/test_dbf_table.py (TestTableToDBF.test_table_to_dbf): New.
        test for table_to_dbf

2003-05-26  Bernhard Herzog  <[email protected]>

        * test/test_transientdb.py
        (TestTransientTable.run_iceland_political_tests): Fix a comment.

2003-05-26  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.TableOpen): Real
        implementation. Mark parts of the file format strings for
        localization.

        * Thuban/Model/session.py (Session.OpenTableFile): New. Open a dbf
        file and add the table to the tables managed by the session

        * test/test_session.py (TestSessionSimple.test_open_table_file):
        New. test case for OpenTableFile

2003-05-26  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/controls.py, Thuban/UI/identifyview.py, Thuban/UI/join.py,
        Thuban/UI/labeldialog.py, Thuban/UI/mainwindow.py,
        Thuban/UI/proj4dialog.py, Thuban/UI/tableview.py, Thuban/UI/view.py:
        Replace the true/false of wxWindows by True/False of Python 2.2.1.

2003-05-26  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/tableview.py (LayerTableFrame.__init__): If there is
        already a selection present, update the grid accordingly.

        * Thuban/UI/mainwindow.py (MainWindow.TableShow): Make the dialog
        resizeable and increase its initial size.

2003-05-26  Frank Koormann  <[email protected]>

        Table export functionality

        * Thuban/Model/table.py (DBFTable.Width, MemoryTable.Width): 
        Return width (in characters) for a column.
        (DBFTable.Precision, MemoryTable.Precision): Return decimal precision.
        (table_to_dbf): Write table to dbf file.
        (table_to_csv): Write table to csv file.

        * Thuban/Model/transientdb.py (TransientTableBase.Width, 
        TransientTableBase.Precision): Return column width and precision.

        * Thuban/UI/tableview.py (QueryTableFrame.OnSaveAs): Call table_to_dbf
        or table_to_csv depending on file selection.

        * test/test_dbf_table.py: 
        Test table_to_dbf (extension of former part of test).

        * test/test_csv_table.py:
        Test table_to_csv.

2003-05-23  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/join.py (JoinDialog.OnJoin): Use _() for strings.
        Use QueryTableFrame instead of TableFrame.

        * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Prefix the
        table window with 'Layer Table:' instead of 'Table:'.

2003-05-23  Jan-Oliver Wagner <[email protected]>

        Give all tables a title via mix-in TitledObject.LayerShowTable

        * Thuban/Model/base.py (TitledObject.SetTitle): Call method 'issue'
        only if it exists.

        * Thuban/Model/table.py (DBFTable, MemoryTable): mix-in TitledObject
        and call its init-method with a default title. Remove Title() method.

        * Thuban/Model/transientdb.py (TransientTable, TransientJoinedTable,
        AutoTransientTable): mix-in TitledObject and call its init-method with
        a default title. Remove Title() method.

2003-05-23  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py (Session.AddShapeStore): Define
        AddShapeStore analogously to AddTable.

        * test/test_session.py (TestSessionSimple.test_add_shapestore):
        New. Test for AddShapeStore

2003-05-23  Jan-Oliver Wagner <[email protected]>

        Introducing QueryTableFrame and a very coarse ShowTable implementation.

        * Thuban/UI/tableview.py (LayerTableFrame, QueryTableFrame): Split the
        class LayerTableFrame into two classes, LayerTableFrame and QueryTableFrame.
        The latter implements the selection GUI without dependency on a layer.
        LayerTableFrame now is derived from QueryTableFrame and connects
        to a layer.

        * Thuban/UI/mainwindow.py (MainWindow.TableShow): A very coarse
        implementation that still needs work.

        * Thuban/Model/layer.py (Layer.TreeInfo): Added filename.

2003-05-22  Frank Koormann  <[email protected]>

        * Thuban/Model/transientdb.py (TransientJoinedTable.__init__): 
        Added "outer_join = False" as optional parameter.
        (TransientJoinedTable.create): If outer join is true, perform a
        "LEFT OUTER JOIN" instead of "JOIN", which preserves all records of
        the left table. Records not matching are filled with 0 / None.

        * Thuban/UI/join.py (JoinDialog.__init__): Checkbox for outer join.
        (JoinDialog.OnJoin): Consider outer join check box.

2003-05-22  Bernhard Herzog  <[email protected]>

        * Thuban/UI/join.py (JoinDialog.OnJoin): Use exc_info in a
        somewhat safer way. Storing the traceback in a local variable can
        lead to memory leaks

2003-05-22  Bernhard Herzog  <[email protected]>

        * Thuban/UI/join.py (JoinDialog.OnJoin): Make sure to really call
        the wxMessageDialog's Destroy() method.

2003-05-22  Frank Koormann  <[email protected]>

        * Thuban/UI/join.py (JoinDialog.__init__): Make use of 
        TransientTable.Title()

2003-05-22  Frank Koormann  <[email protected]>

        Join Dialog, initial version.

        * Thuban/UI/mainwindow.py (MainWindow.TableJoin): Removed print.

        * Thuban/UI/join.py (JoinDialog): Functional implementation of 
        former framework. Renamed Table1/Table2 to LeftTable/RightTable
        in all occurences.

        * Thuban/Model/transientdb.py (TransientJoinedTable.__doc__): 
        Typo fixed.

2003-05-22  Bernhard Herzog  <[email protected]>

        Give the tables titles so that the GUI can display more meaningful
        names. For now the titles are fixed but depend on e.g. filenames
        or the titles of the joined tables.

        * Thuban/Model/transientdb.py (TransientTable.Title)
        (TransientJoinedTable.Title, AutoTransientTable.Title): New.

        * Thuban/Model/table.py (DBFTable.Title, MemoryTable.Title): New.

        * test/test_transientdb.py
        (TestTransientTable.test_auto_transient_table_title): New. Test
        for the Title method
        (TestTransientTable.test_transient_joined_table)
        (TestTransientTable.test_transient_table): Add test for the Title
        methods

        * test/test_memory_table.py (TestMemoryTable.test_title): New.
        Test for the Title method

        * test/test_dbf_table.py (TestDBFTable.test_title): New. Test for
        the Title method

2003-05-22  Bernhard Herzog  <[email protected]>

        * test/test_layer.py (TestLayer.setUp, TestLayer.tearDown):
        Provide a better way to destroy the layers
        (TestLayer.test_base_layer, TestLayer.test_arc_layer)
        (TestLayer.test_point_layer, TestLayer.test_empty_layer)
        (TestLayer.test_polygon_layer, TestLayer.test_get_field_type): Use
        the new way to destroy the layers.
        (TestLayer.test_derived_store): New. Test for using a layer with a
        DerivedShapeStore

        * Thuban/Model/layer.py (Layer.SetShapeStore): Only set the
        filename if the shape store actually has one.

2003-05-22  Bernhard Herzog  <[email protected]>

        * Thuban/Model/table.py (DBFTable.FileName): New. Accessor method
        for the filename

        * test/test_dbf_table.py (TestDBFTable.test_filename): New. Test
        for the FileName method
        (TestDBFTableWriting.test_write): Fix spelling of filename

2003-05-22  Thomas Koester  <[email protected]>

        * Thuban/Model/range.py, test/test_range.py: Brought over new Range
        from SciParam that now really is immutable.

2003-05-22  Frank Koormann  <[email protected]>

        Layer Top/Bottom placement added to legend.

        * Thuban/UI/legend.py 
        (LegendPanel._OnMoveTop(), LayerPanel._OnMoveBottom): New, methods
        bound to tool events.
        (LegendTree.MoveCurrentItemTop(), LegendTree.MoveCurrentItemBottom):
        New, methods binding the event methods with the map methods.

        * Thuban/Model/map.py (Map.TopLayer(), Map.BottomLayer()): New, place 
        layer at top/bottom of layer stack.

        * Resources/Bitmaps/top_layer.xpm: New button icon.

        * Resources/Bitmaps/bottom_layer.xpm: New button icon.

2003-05-22  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py (Session.RemoveTable): New method to
        remove tables

        * test/test_session.py (TestSessionSimple.test_remove_table): New.
        Test for RemoveTable

2003-05-22  Thomas Koester  <[email protected]>

        * Thuban/Model/classgen.py: Added short module doc string and CVS id.
        (ClassGenerator.GenUniformDistribution): Use new Range __init__, too.

2003-05-22  Bernhard Herzog  <[email protected]>

        Implement a way to discover dependencies between tables and
        shapestores.

        * Thuban/Model/transientdb.py (TransientTableBase.Dependencies)
        (TransientJoinedTable.Dependencies)
        (AutoTransientTable.SimpleQuery): New. Implement the dependencies
        interface
        (TransientJoinedTable.__init__): Keep tack of the original table
        objects in addition to the corresponding transient tables.

        * Thuban/Model/table.py (DBFTable.Dependencies)
        (MemoryTable.Dependencies): New. Implement the dependencies
        interface

        * Thuban/Model/data.py (ShapeTable): New. Helper class for
        ShapefileStore
        (ShapefileStore.__init__): Use ShapeTable instead of
        AutoTransientTable
        (ShapefileStore.Table, ShapefileStore.Shapefile): Add doc-strings
        (ShapefileStore.FileName, ShapefileStore.FileType): New. Accessor
        methods for filename and type
        (ShapefileStore.Dependencies): New. Implement the dependencies
        interface
        (DerivedShapeStore): New class to replace SimpleStore. The main
        difference to SimpleStore is that it depends not on a shapefile
        but another shapestore which expresses the dependencies a bit
        better
        (SimpleStore.__init__): Add deprecation warning.

        * test/test_dbf_table.py (TestDBFTable.test_dependencies): New.
        Test for the Dependencies method.

        * test/test_memory_table.py (TestMemoryTable.test_dependencies):
        New. Test for the Dependencies method.

        * test/test_transientdb.py
        (TestTransientTable.test_auto_transient_table_dependencies): New.
        Test for the Dependencies method.
        (TestTransientTable.test_transient_joined_table): Add test for the
        Dependencies method.

        * test/test_session.py (TestSessionSimple.setUp)
        (TestSessionSimple.tearDown): New. Implement a better way to
        destroy the sessions.
        (TestSessionSimple.test_initial_state)
        (TestSessionSimple.test_add_table): Bind session to self.session
        so that it's destroyed by tearDown
        (TestSessionSimple.test_open_shapefile): New. Test for
        OpenShapefile and the object it returns

2003-05-22  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py (Session.AddTable): New method to
        register tables with the session.
        (Session.Tables): Return the tables registered with AddTable too.

        * test/test_session.py (TestSessionSimple.test_add_table): New.
        Test case for the AddTable method

2003-05-22  Frank Koormann  <[email protected]>

        UI polishing updates: Place main buttons (OK, Cancel, etc) in the 
        lower right corner, center labels for selections, initialize controls
        in reasonable order for keyboard navigation. 

        * Thuban/UI/projdialog.py (ProjFrame.__init__, ProjFrame.__doLayout)
        (ProjFrame.__DoOnProjAvail): Determine position of current projection
        using the wxListBox.FindString() method. Still a problem (#1886)

        * Thuban/UI/classifier.py 
        (Classifier.__init__, SelectPropertiesDialog.__init__)

        * Thuban/UI/classgen.py (ClassGenDialog.__init__, 
        (ClassGenDialog.__DoOnGenTypeSelect): Moved initialization of the 
        different classification types from here to __init__.
        (GenUniquePanel.__init__): Set the column width of the first field 
        in the Field ListCtrl to the full width.
 
        * Thuban/UI/tableview.py (LayerTableFrame.__init__): Rename 'Save As'
        Button to 'Export'. Center Buttons in Selection Box, set Focus to
        Grid. 
        (LayerTableFrame.OnKeyDown()): New, bound to the grid with EVT_KEY_DOWN,
        changes focus to the Selection when pressing "Alt-S".

        * Thuban/UI/legend.py (LegendTree.__SetVisibilityStyle): Only gray out
        the text if not visible. The italic font sometimes exceeds the
        rendering area.

2003-05-21  Jonathan Coles   <[email protected]>

        * Thuban/UI/dock.py (DockFrame): Rename references to _OnClose
        to OnClose so that Thuban closes correctly.

        * Thuban/UI/mainwindow.py (MainWindow.OnClose): Call
        DockFrame.OnClose, not DockFrame._OnClose.

2003-05-21  Jonathan Coles   <[email protected]>

        * Thuban/Model/classgen.py (ClassGenerator.GenQuantiles): Remove
        references to 'inf' and use new Range __init__ to pass floats
        directly rather than converting them to strings first. 
        Fixes RTBug #1876.

        * Thuban/Model/classification.py (ClassGroupRange.SetRange):
        Use new Range ___init__ to pass floats.

        * Thuban/Model/layer.py (RasterLayer.__init__): Test if the
        filename is a valid image file. Throw IOError otherwise.

        * Thuban/Model/range.py: Brought over new Range from SciParam that
        is immutable and has an __init__ which can accept floats.

        * Thuban/UI/mainwindow.py (MainWindow.AddLayer): Move OpenShapefile
        into try block. AddLayer doesn't throw any exceptions anymore. 
        (MainWindow.AddRasterLayer): Move constructor of RasterLayer into 
        try block.

        * Thuban/UI/projdialog.py (GeoPanel.__init__): Put Degrees as
        the first item in choices. Fixes RTBug #1882.

        * Thuban/UI/renderer.py (MapRenderer.render_map): Check if scale
        has gone to 0 which is a serious problem. abort.
        (MapRenderer.draw_raster_layer): Catch IOError seperately and
        print the error from GDAL.

        * Thuban/UI/tableview.py (TableGrid.__init__): Call
        ToggleEventListeners to turn on listening. 
        (TableGrid.ToggleEventListeners): New. Turns event listening on
        and off so as to prevent excessive messages.
        (LayerTableFrame.OnQuery): Use TableGrid.ToggleEventListeners
        to suppress excessive messages when selecting many rows. 
        Fixes RTBug #1880.

        * Thuban/UI/view.py: Added checks against if scale == 0. This
        is a serious problem that can occur when an image without 
        geo data is loading and causes the map projection bounds to
        go to infinity. Right now, the solution is to simply try
        to recover.

        * extensions/thuban/cpl_mfile.cpp (MFILEClose): Make sure
        to set the MFILEReceiver attributes even if the data is NULL.

        * extensions/thuban/gdalwarp.cpp: Improved the error handling
        and passed GDAL messages back up to the Python layer. Also
        tried to fix some memory leaks that were present in the original
        utility but didn't matter because the program aborted.

        * test/test_range.py: Copied over tests from SciParam. Removed
        tests against importing. Fixes RTBug #1867.

2003-05-21  Bernhard Herzog  <[email protected]>

        * test/test_load.py: Remove unused imports and restructure the
        test code
        (LoadSessionTest): Split into one class for each test and turn
        LoadSessionTest itself into the base class for all such session
        tests.
        (ClassificationTest): New base class for load tests that test
        classifications
        (TestSingleLayer, TestLayerVisibility, TestClassification)
        (TestLabels, TestLayerProjection, TestRasterLayer): New classes
        for the individual tests

        * test/support.py (FileLoadTestCase.filename): New base class for
        file loading tests

2003-05-21  Jan-Oliver Wagner <[email protected]>

        * Resources/Projections/defaults.proj: Renamed 'Universal Transverse
        Mercator' to 'UTM Zone 32' as a more convenient example.
        Added 'Gauss Krueger Zone 6'.

        * Data/iceland_sample_raster.thuban: political polygon now
        filled transparent to have the raster image visible at once.

2003-05-21  Frank Koormann  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow): Renamed _OnClose() back to 
        OnClose() to keep in sync with extensions. Internally Thuban
        still uses "underscored" names.

2003-05-20  Jonathan Coles   <[email protected]>

        This puts back Raster layer support. These layers support projections
        through the GDAL library. Currently, the CVS version is being used.
        There are no Debian packages available although this may change soon. 
        A GDAL driver was extended to support writing to memory rather to
        files.

        There is still some work that needs to be done, such as some error
        handling when loading invalid images or when there is a problem
        projecting the image. This putback simply checks in the majority
        of the work.

        * setup.py: Add gdalwarp library extension.

        * Thuban/Model/layer.py (BaseLayer.HasClassification): New.
        Defaults to False, but can be overridden by subclasses if they
        support classification.
        (RasterLayer): New. Defines a new layer that represents an
        image.

        * Thuban/Model/load.py (SessionLoader.__init__): Add rasterlayer
        tag handler.
        (SessionLoader.start_layer): Encode the filename.
        (SessionLoader.start_rasterlayer, SessionLoader.end_rasterlayer):
        New. Supports reading a rasterlayer tag.

        * Thuban/Model/map.py (Map.BoundingBox): Fix typo in comment.

        * Thuban/Model/save.py (XMLWriter.encode): Don't assume that we
        get a string in Latin1. If we get such as string convert it to
        unicode first, otherwise leave if alone before encoding.
        (SessionSaver.write_layer): Add support for writing both Layers
        and RasterLayers.

        * Thuban/Model/transientdb.py (AutoTransientTable.SimpleQuery): 
        The right argument may not be a string, it could also be a Column.

        * Thuban/UI/application.py (ThubanApplication.CreateMainWindow):
        Make initial window size 600x400. Fixes RTBug #1872.

        * Thuban/UI/classifier.py (Classifier.__init__): Rearrange how
        the dialog is constructed so that we can support layers that
        do not have classifications.
        (Classifier._OnTry): Only build a classification if the layer
        supports one.

        * Thuban/UI/legend.py: Change all checks that a layer is an
        instance of Layer into checks against BaseLayer.
        (LegendTree.__FillTreeLayer): Only add children to a branch if
        the layer supports classification.

        * Thuban/UI/mainwindow.py (MainWindow.NewSession,
        MainWindow.OpenSession): Don't proceed with an action if the 
        user chooses Cancel when they are asked to save changes.
        (MainWindow.AddRasterLayer): New. Open a dialog to allow the
        user to select an image file. Create a new RasterLayer and add
        it to the map.

        * Thuban/UI/renderer.py (MapRenderer.render_map): Add support
        for rendering RasterLayer layers.
        (MapRenderer.draw_raster_layer): Actually method that calls
        the GDALWarp python wrapper and constructs an image from the
        data returned.

        * Thuban/UI/tableview.py (LayerTableFrame.__init__): Change the
        Choices symbols to match those used in the table query method.
        Replace deprecated method calls on table with new method names.

        * Thuban/UI/view.py (MapCanvas.set_view_transform): Try to limit
        how small the scale can get. This still needs more testing.

        * extensions/thuban/bmpdataset.cpp: New, but copied from GDAL.
        Provides a driver to output in .bmp format.

        * extensions/thuban/cpl_mfile.cpp, extensions/thuban/cpl_mfile.h: 
        New. Provides IO routines which write to memory, rather than a file.

        * extensions/thuban/gdalwarp.cpp: New, but basically a direct copy
        of the gdalwarp utility provided in GDAL. Added function calls
        that can be accessed from python.

        * Data/iceland_sample_raster.thuban: New. Sample file that uses
        a raster layer.

        * Data/iceland/island.tfw, Data/iceland/island.tif: New. Raster
        layer image data.

        * Doc/thuban.dtd: Added rasterlayer attribute definition.

        * test/test_layer.py, test/test_load.py, test/test_save.py: Added
        tests associated with the raster layer code.

        * test/test_transientdb.py
        (TestTransientTable.test_auto_transient_table_query): Added a test 
        for using a Column object as the "right" parameter to a query.

2003-05-19  Frank Koormann  <[email protected]>

        * Thuban/version.py (get_changelog_date): 
        Catch exceptions if ChangeLog does not exist.

        * Thuban/UI/view.py (MapCanvas.Export): Bugfix

2003-05-19  Frank Koormann  <[email protected]>

        Extended version information for Thuban

        * Thuban/version.py: New, version information for Thuban: Last
        modification date and last ChangeLog entry date.

        * Thuban/UI/mainwindow.py (MainWindow.About()): Extended version
        information: Display Thuban, wxPython and Python version.

2003-05-16  Bernhard Herzog  <[email protected]>

        * Thuban/Model/save.py: Remove some unused imports including the
        __future__ import for nested_scopes as Thuban relies on Python 2.2
        now.
        (XMLWriter.encode): Remove the special case for a None argument.
        In the saver encode is always called with a string argument.

2003-05-16  Bernhard Herzog  <[email protected]>

        * Thuban/UI/__init__.py: Remove the work-around for the locale bug
        in wxPython (at least when usinvg wxGTK) prior to 2.4. The symptom
        of the bug was that e.g. float("1.2") would fail. Thuban now
        requires 2.4.x.
        
2003-05-16  Frank Koormann   <[email protected]>

        Printing enhancement and WMF export (under Win32)

        * Thuban/UI/renderer.py (ExportRenderer): New, derived from
        ScreenRenderer. Renders Map, Legend and Scalebar for export.
        (PrinterRenderer): New, derived from ExportRenderer. Replaces the old 
        PrintRender.

        * Thuban/UI/view.py (MapPrintout.__init__): Enhanced parameter set
        to fullfil information needed for PrinterRenderer.
        (MapCanvas.Export): New. Export Map (currently only to WMF on Win32).
        (MapCanvas.Print): Adapted to new MapPrintout.
        (OutputTransform): General calculations to transform from canvas
        coordinates to export/printing devices.

        * Thuban/UI/mainwindow.py (MainWindow.ExportMap()): New. Added also 
        new method_command to call ExportMap, with platform dependency (only
        __WXMSW__)
  
        * Thuban/UI/scalebar.py (ScaleBar.DrawScaleBar): Position and Size
        of scalebar drawing area as new parameters.
        
        * Thuban/Model/scalebar.py (roundInterval): round long instead of int

        * Thuban/UI/legend.py (ScalebarBitmap.__SetScale): 
        Update to extended scalebar.DrawScalebar header.

        * test/test_export.py: New, test Thuban.UI.view.OutputTransform()

        * test/test_scalebar.py: Made test executable as standalone.

2003-05-16  Bernhard Herzog  <[email protected]>

        * Thuban/Model/table.py (Table): Remove this compatibility alias
        for DBFTable.

        * test/test_table.py: Import DBFTable as Table because that alias
        doesn't exist anymore.

        * Thuban/UI/classgen.py: Remove some unused imports

2003-05-14  Jonathan Coles   <[email protected]>

        * Thuban/Model/classgen.py (ClassGenerator.GenSingletonsFromList):
        Fix docstring.
        (ClassGenerator.GenUniformDistribution): Fix spelling of method name.
        (ClassGenerator.GenQuantiles): Use the left/right brackets and min/max
        values of the supplied range to determine the beginning and end
        bounds of the generated classes.

        * Thuban/Model/range.py (Range.number_re): Now accepts floats that
        do not have a leading 0 (.5 is now accepted as well as 0.5).

        * Thuban/UI/classgen.py (ClassGenDialog.OnOK): Fix name of method
        call to ClassGenerator.GenUniformDistribution.

        * Thuban/UI/projdialog.py (ProjFrame.__do_layout): Fix Windows 
        layout bug with the 'Projection' label.

        * test/support.py (FloatTestCase): New. Needed for the Range tests.

        * test/test_range.py: New. Imported from SciParam.

2003-05-12  Jonathan Coles   <[email protected]>

        * Thuban/UI/classgen.py (GenQuantilesPanel.GetList): Replace call
        to table.UniqueValues() with calls that retrieve all the values
        from the table. This will need to be replaced by a method on table
        which can simply return the list (perhaps more efficiently).

2003-05-12  Jonathan Coles   <[email protected]>

        The return value of ClassGenerator.CalculateQuantiles has changed.
        Refer to the documentation for details.

        * test/test_classgen.py: Modified Quantile tests to use the
        new return values.

        * Thuban/Model/classgen.py 
        (ClassGenerator.GenQuantiles): Add comments describing the parameters,
        use new return values from CalculateQuantiles to produce the correct 
        range bounds in the Classification.
        (ClassGenerator.CalculateQuantiles): Add more comments describing
        the return values and parameters. Make minor adjustments to improve
        the legibility of the code. Fix problem with adjusted not being set
        in most cases.

2003-05-12  Frank Koormann <[email protected]>
        
        * Thuban/Model/save.py (XMLWriter.encode()): Explicite call to unicode 
        and latin1. Fixes #1851 finally.

2003-05-09  Jonathan Coles   <[email protected]>

        * test/test_classgen.py: New. Tests the Quantile algorithm.

        * Thuban/Model/classgen.py (ClassGenerator.CalculateQuantiles):
        Clean up debugging statement, add comments, fix a small bug in the
        returned adjusted percentiles.
        
2003-05-09  Jonathan Coles   <[email protected]>

        Introduces Range class from SciParam into the ClassGroupRange class,
        and such ranges can now be saved and loaded from disk.

        Quantiles are now available in the Classification Generator.

        Initial support for building Queries on a table. Doesn't do anything
        but run some tests.

        * Thuban/Model/classification.py: Explicit imports.
        (ClassGroupRange): Use the Range class to store the underlying
        range information. The interface remains the same, except for
        GetRange(), and you can also supply a Range object as the min 
        parameter to SetRange or __init__.

        * Thuban/Model/load.py (XMLReader.encode): New. Encodes the given
        string appropriately for use in Thuban. Fixes RTbug #1851.
        (SessionLoader.end_projection): Handle the context of the
        projection tag a bit better by looking at what objects are not
        None. There was an assumption that a projection tag for a map
        could occur before any layers.
        (SessionLoader.start_clrange): Provide backward compatibility for
        reading min/max values as well as the new range parameter.

        * Thuban/Model/map.py: Explicit imports.

        * Thuban/Model/resource.py: Import _.
        (ProjFileSaver.write): write header using projfile.dtd.

        * Thuban/Model/save.py: Explicit imports.
        (XMLWriter.encode): New. Encode the given string from a format
        used by Thuban into UTF-8. Fixes RTbug #1851.

        * Thuban/UI/classgen.py: Explicit imports.
        (ClassGenDialog.__init__): Clean up the code and add support
        for Quantiles.
        (ClassGenDialog.OnOK): Add support for Quantiles.
        (GenQuantilesPanel): New. Input panel for Quantiles.
        (ClassGenerator, CustomRamp, MonochromaticRamp, GreyRamp, RedRamp,
        GreenRamp, BlueRamp, HotToColdRamp): Move to Thuban/Model/classgen.py

        * Thuban/Model/classgen.py: New. Contains all the classes named above.

        * Thuban/UI/classifier.py: Explicit imports.
        (ClassTable.GetValueAsCust, ClassTable.__ParseInput, 
        ClassTable.SetValueAsCustom): Reworked to use new Range class.

        * Thuban/UI/legend.py: Explicit imports.

        * Thuban/UI/mainwindow.py: Add support for the Join Dialog. Added
        a Table menu and associated method calls.
        (MainWindow.choose_color): Removed. No longer needed.

        * Thuban/UI/projdialog.py (ProjFrame.__VerifyButtons): Save button
        should be disabled if no projection is selected in the available
        list.

        * Thuban/UI/renderer.py: Explicit imports.

        * Thuban/UI/tableview.py (TableGrid.OnRangeSelect): Fix some issues
        with correctly selecting the rows and issuing the right events.
        Be sure to call Skip() to allow the grid to do some of its own
        handling which allows the rows to actually be selected.
        (LayerTableGrid.select_shapes): Rename from select_shape. Supports
        selecting multiple shapes.
        (LayerTableFrame): Support for building Queries.
        (LayerTableFrame.select_shapes): Allow multiple shapes to be selected.

        * Thuban/UI/tree.py: Explicit imports.

        * Thuban/UI/view.py (MapCanvas): Delegate "SelectedShapes" so the
        table view can call it.

        * test/test_classification.py: Explicit imports.
        (TestClassification.test_ClassGroupRange): Fix test for new
        Range class.

        * Doc/thuban.dtd: Add range parameter for clrange.

        * Thuban/Model/range.py: Taken from SciParam. Used as the underlying
        object in ClassGroupRange, and also uesd for inputting ranges in
        the classifer table and elsewhere.

        * Thuban/UI/join.py: New. Initial Join dialog. No real functionality
        yet.

2003-05-09  Frank Koormann <[email protected]>

        * Thuban/UI/scalebar.py (DrawScaleBar): Draw only if interval > 0.0.

2003-05-08  Frank Koormann <[email protected]>

        Coding style updates

        * test/test_scalebar.py: Replaced tab indentation by spaces.

        * Thuban/UI/scalebar.py: Explicit imports.

2003-05-08  Frank Koormann <[email protected]>

        * Thuban/UI/scalebar.py 
        (ScaleBar.DrawScalebar): Format string bug fixed.

2003-05-08  Frank Koormann <[email protected]>

        Reorganization of scalebar component (no wx in Thuban/Model)

        * Thuban/Model/scalebar.py: Rendering moved to Thuban/UI/scalebar.py 
        (deriveInterval): 
        Calculate scalebar interval and unit which fits in width for scale.
        (roundInterval): Round float.

        * Thuban/UI/scalebar.py (ScaleBar): Scalebar rendering

        * test/test_scalebar.py: Test for Thuban/Model/scalebar.py methods.

        * Thuban/UI/legend.py: Import Thuban.UI.scalebar

2003-05-08  Frank Koormann <[email protected]>

        * Thuban/UI/legend.py (ScalebarBitmap.SetCanvas): 
        Initialize ScaleBar with canvas.map

        * Thuban/Model/scalebar.py (ScaleBar.roundInterval()): New, 
        round intervals to display smarter lengths
        (ScaleBar.DrawScalebar): Draw Scalebar only if the map contains a 
        layer. If the maps has no projection applied grey the scalebar.

2003-05-07  Frank Koormann <[email protected]>
        
        Basic Scalebar features added.

        * Thuban/Model/scalebar.py (ScaleBar): New, scalebar rendering.

        * Thuban/UI/legend.py (LegendPanel): Added scalebar bitmap
        (ScaleBarBitmap): New, links the scalebar bitmap with view messages
        and the renderer.

        * Thuban/UI/view.py (MapCanvas.set_view_transform): Issue SCALE_CHANGED.

        * Thuban/UI/messages.py: SCALE_CHANGED added.

2003-05-07  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py (Session.__init__): New instance
        variable shapestores to hold a list of all open shapestore objects
        (Session.ShapeStores): New. Accessor method for the shapestores
        list.
        (Session._add_shapestore, Session._clean_weak_store_refs): New.
        Internal methods to maintain the shapestores list.
        (Session.Tables): New. Return all tables open in the session.
        (Session.OpenShapefile): Insert the new ShapeStore into the
        shapestores list.

        * test/test_session.py (TestSessionSimple.test_initial_state): Add
        tests for ShapeStores and Tables
        (TestSessionWithContent.test_shape_stores)
        (TestSessionWithContent.test_tables): New. Test cases for
        ShapeStores and Tables

2003-05-07  Bernhard Herzog  <[email protected]>

        * Thuban/Model/transientdb.py (TransientTableBase.ReadRowAsDict):
        Add comments about the optimizations used.
        (AutoTransientTable.ReadValue, TransientTableBase.ReadValue): New.
        Implement the ReadValue table interface method.

        * test/test_transientdb.py
        (TestTransientTable.run_iceland_political_tests)
        (TestTransientTable.test_transient_joined_table): Add tests for
        ReadValue

2003-05-07  Frank Koormann <[email protected]>

        * Resources/Bitmaps/fulllayerextent.xpm,
        Resources/Bitmaps/fullselextent.xpm: Replaced the place holders with
        new icons.
 
2003-05-06  Bernhard Herzog  <[email protected]>

        * Thuban/Model/transientdb.py (AutoTransientTable.SimpleQuery):
        New. Simply delegate to the transient table's version.

        * test/test_transientdb.py
        (TestTransientTable.test_auto_transient_table_query): New. Test
        case for AutoTransientTable's SimpleQuery

2003-05-06  Bernhard Herzog  <[email protected]>

        * Thuban/Model/transientdb.py (TransientTableBase.SimpleQuery):
        Implement a simple query method for the query dialog
        (TransientTableBase.create): Add an INTEGER PRIMARY KEY that holds
        the row index or shapeid.
        (TransientTable.create): Insert the right value of the row index
        (TransientJoinedTable.create): Copy the row index of the left
        table to the joined result table

        * test/test_transientdb.py
        (TestTransientTable.test_transient_table_read_twice): Fix
        doc-string
        (TestTransientTable.test_transient_table_query): New. Test for the
        SimpleQuery method

2003-05-06  Bernhard Herzog  <[email protected]>

        Convert all table users to use the new table interface. This only
        covers Thuban itself, not GREAT-ER or other applications built on
        Thuban yet, so the compatibility interface stays in place for the
        time being but it now issues DeprecationWarnings.

        Finally, the new Table interface has a new method, HasColumn.

        * Thuban/Model/table.py (OldTableInterfaceMixin): All methods
        issue deprecation warnings when they're. The warnings refer to the
        caller of the method.
        (OldTableInterfaceMixin.__deprecation_warning): New. Helper method
        for the deprecation warnings

        * test/test_table.py: Ignore the deprecation warnings for the old
        table in the tests in this module. The purpose of the tests is to
        test the old interface, after all.

        * test/test_transientdb.py
        (TestTransientTable.run_iceland_political_tests): Use the
        constants for the types. Add a test for HasColumn
        (TestTransientTable.test_transient_joined_table): Adapt to new
        table interface. Add a test for HasColumn
        (TestTransientTable.test_transient_table_read_twice): Adapt to new
        table interface

        * Thuban/UI/tableview.py (DataTable.SetTable, DataTable.GetValue):
        Adapt to new table interface

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Adapt to
        new table interface

        * Thuban/UI/controls.py (RecordListCtrl.fill_list)
        (RecordTable.SetTable): Adapt to new table interface

        * Thuban/UI/classifier.py (Classifier.__init__)
        (Classifier.__init__): Adapt to new table interface

        * Thuban/UI/classgen.py (ClassGenDialog.__init__)
        (GenUniformPanel._OnRetrieve, GenUniquePanel._OnRetrieve): Adapt
        to new table interface

        * Thuban/Model/transientdb.py (TransientTableBase.HasColumn)
        (AutoTransientTable.HasColumn): Implement the new table interface
        method
        (AutoTransientTable.ReadRowAsDict, AutoTransientTable.ValueRange)
        (AutoTransientTable.UniqueValues): Adapt to new table interface

        * Thuban/Model/layer.py (Layer.SetShapeStore, Layer.GetFieldType):
        Adapt to new table interface

        * test/test_layer.py (TestLayer.open_shapefile): Helper method to
        simplify opening shapefiles a bit easier.
        (TestLayer.test_arc_layer, TestLayer.test_polygon_layer)
        (TestLayer.test_point_layer): Use the new helper method
        (TestLayer.test_get_field_type): New. Test for the GetFieldType
        method

        * test/test_dbf_table.py (TestDBFTable.test_has_column): Test for
        the new table method

        * test/test_memory_table.py (TestMemoryTable.test_has_column):
        Test for the new table method HasColumn

2003-05-06  Jonathan Coles   <[email protected]>

        Addresses the "Selection Extent" wish of RTbug #1787.

        * Resources/Bitmaps/fulllayerextent.xpm,
        Resources/Bitmaps/fullselextent.xpm: Bitmaps for layer and selection
        extent. These are just place holders for the real bitmaps.

        * Thuban/Model/layer.py (Shape): Since a Shape is immutable only
        calculate the bounding box once (the first time compute_bbox() is 
        called).
        (Layer.ShapesBoundingBox): New. Given a list of shape ids, return
        the bounding box for the shapes in lat/long coordinates. 

        * Thuban/UI/mainwindow.py: Added new "Full selection extent" menu
        option.
        (MainWindow.has_selected_shapes): New. Returns true if there are 
        any selected shapes.
        (MainWindow.FullSelectionExtent): New. Calls 
        MapCanvas.FitSelectedToWindow() when the user selects the menu option.
        (_has_selected_shapes): New. Returns true if there are any 
        selected shapes.

        * Thuban/UI/selection.py (Selection.HasSelectedShapes): New. Returns
        true if there are any selected shapes.

        * Thuban/UI/view.py (MapCanvas): Added delegated method
        HasSelectedShapes.
        (MapCanvas.FitSelectedToWindow): New. Centers and scales any selected
        shapes on the canvas using the map projection (if any).

        * test/test_layer.py (TestLayer.test_arc_layer): Add some tests
        for Layer.ShapesBoundingBox().

2003-05-06  Bernhard Herzog  <[email protected]>

        * Resources/Projections/defaults.proj: Fix spelling of Mercator

2003-05-05  Jonathan Coles   <[email protected]>

        Addresses the "Full Layer Extent" wish of RTbug #1787.

        * Resources/Projections/defaults.proj: Added UK National Grid.

        * Thuban/UI/mainwindow.py: Added new "Full layer extent" menu option.
        (MainWindow.FullLayerExtent): New. Calls MapCanvas.FitLayerToWindow()
        when the user selects the menu option.

        * Thuban/UI/view.py (MapCanvas.FitLayerToWindow): New. Centers and
        scales the given layer on the canvas using the map projection.

2003-05-05  Bernhard Herzog  <[email protected]>

        Convert the table implementations to a new table interface. All
        tables use a common mixin class to provide backwards compatibility
        until all table users have been updated.

        * Thuban/Model/table.py (OldTableInterfaceMixin): Mixin class to
        provide backwards compatibility for table classes implementing the
        new interface
        (DBFTable, MemoryTable): Implement the new table interface. Use
        OldTableInterfaceMixin as base for compatibility
        (DBFColumn, MemoryColumn): New. Column description for DBFTable
        and MemoryTable resp.

        * test/test_dbf_table.py: New. Test cases for the DBFTable with
        the new table interface.

        * test/test_memory_table.py: New. Test cases for the MemoryTable
        with the new table interface.

        * test/test_table.py: Document the all tests in this file as only
        for backwards compatibility. The equivalent tests for the new
        interface are in test_memory_table.py and test_dbf_table.py
        (MemoryTableTest.test_read): field_info should be returning tuples
        with four items
        (MemoryTableTest.test_write): Make doc-string a more precise.

        * Thuban/Model/transientdb.py (TransientTableBase): Convert to new
        table interface. Derive from from OldTableInterfaceMixin for
        compatibility.
        (TransientTableBase.create): New intance variable column_map to
        map from names and indices to column objects
        (TransientTable.create): Use the new table interface of the input
        table
        (AutoTransientTable): Convert to new table interface. Derive from
        from OldTableInterfaceMixin for compatibility.
        (AutoTransientTable.write_record): Removed. It's not implemented
        yet and we still have to decide how to handle writing with the new
        table and data framework.

        * test/test_transientdb.py
        (TestTransientTable.run_iceland_political_tests)
        (TestTransientTable.test_transient_joined_table): Use the new
        table interface

2003-05-05  Jonathan Coles   <[email protected]>

        This is namely a collection of UI updates to improve user interactivity.
        Tabbing between controls now exists and you can use ESC to close dialog
        boxes; ENTER will active the default button.

        * Thuban/UI/classgen.py (ClassGenDialog.__init__): Rearrange the
        order that the controls are created so that tabbing works correctly. 
        (ClassGenDialog.OnOK): Renamed from _OnGenerate() so that the 
        wxDialog can handle the default button correctly.
        (ClassGenDialog.OnCancel): Renamed from _OnCloseBtn() for the
        same reasons as for OnOK.
        (GenUniformPanel._OnRetrieve): Call wxBeginBusyCursor/wxEndBusyCursor
        when we ask the table for the maximum/minimum values of a field
        which could take a very long time.

        * Thuban/UI/classifier.py (Classifier.__init__): Rearrange the
        order that the controls are created so that tabbing works correctly.
        (SelectPropertiesDialog.__init__): Rearrange the order that the 
        controls are created so that tabbing works correctly.

        * Thuban/UI/dialogs.py: Copied NonModalDialog box and changed it
        to derive from a wxDialog but behave like the original implementation
        which was derived from a wxFrame. wxDialog provides useful key
        handling functionality like ESC calling OnCancel and ENTER calling
        OnOK which is lost with wxFrame.

        * Thuban/UI/mainwindow.py: Add "..." to menu items that will open
        new dialogs.

        * Thuban/UI/projdialog.py (ProjFrame.__init__): Rearrange the
        order that the controls are created so that tabbing works correctly.
        (ProjFrame.OnApply): Renamed from _OnTry() to use wxDialog behaviour.
        (ProjFrame.OnOK): Renamed from _OnOK() to use wxDialog behaviour.
        (ProjFrame.OnCancel): Renamed from _OnClose() to use wxDialog behaviour.
        (ProjPanel.__init__): Add "Airy" to the list of ellipsoids so we
        can provide the "UK National Grid" as a default projection.
        (UTMPanel.__init__): Rearrange the order that the controls are 
        created so that tabbing works correctly.

2003-05-05  Bernhard Herzog  <[email protected]>

        * extensions/thuban/wxproj.cpp: Fix some of the comments.
        (project_point): If a map projection but no layer projection is
        given, convert degrees to radians before applying the map
        projection.

        * Thuban/UI/tableview.py (TableGrid.disallow_messages)
        (TableGrid.allow_messages): New methods to make it possible to
        inhibit message sending.
        (TableGrid.issue): Only send the message if not inhibited.
        (LayerTableGrid.select_shape): Use the new methods to make sure
        that no ROW_SELECTED message is sent while we're updating the
        selected rows to match the selected shapes.

2003-05-02  Jan-Oliver Wagner <[email protected]>

        Implementation of MemoryTable.

        * Thuban/Model/table.py (MemoryTable): New. Quite simple table
        implementation that operates on a list of tuples. All of the data
        are kept in the memory.

        * test/test_table.py (MemoryTableTest): New.

        * test/test_transientdb.py (SimpleTable): Removed.
        (TestTransientTable.test_transient_joined_table,
        (TestTransientTable.test_transient_table_read_twice): Replaced
        SimpleTable by MemoryTable.

2003-04-30  Jonathan Coles   <[email protected]>

        * Data/iceland_sample.thuban: Now contains correct projections
        for each of the layers.

        * Resources/Projections/defaults.proj: Geographic projection
        contains unit conversion parameter.

2003-04-30  Jonathan Coles   <[email protected]>

        The most important part of this putback is the projection changes.
        It should now be possible to specify the projection that a layer
        is in and then specify a different projection for the map. The
        projection dialog has an extra parameter for a geographic projection
        which lets the user select if the input is in degrees or radians.

        * Thuban/Model/layer.py (Layer.ShapesInRegion): Fix docstring
        to say that the parameter is a tuple of unprojected 
        points (which is what the callers to this method were assuming).
        Also, since the points are unprojected we need to projected them.

        * Thuban/UI/legend.py (LegendTree.MoveCurrentItemUp, 
        LegendTree.MoveCurrentItemDown): If the layer or any of the layer's
        groups are selected, move the layer up/down. Fixes RTbug #1833.

        * Thuban/UI/mainwindow.py: Move menu item map_rename up.

        * Thuban/UI/projdialog.py (ProjFrame._OnSave): Add missing 
        parameter in call to SetClientData.
        (GeoPanel): Add support for selecting the units that the
        source data is in (Radians or Degrees).

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Optimize
        the rendering loop by reducing the number of if's, removing the
        unnecessary try/except block, and checking if the old group
        is the same as the new one (which happens a lot if there is 
        no classification, or lots of shapes are in the same group).

        * Thuban/UI/view.py (MapCanvas.OnPaint): Add a try/except block
        around the redraw routine to try to catch problems that the user
        may create by selecting invalid projections for the data set and
        map. Clears the display if there are any problems and prints the
        error.
        (MapCanvas.do_redraw): Use DC.Clear() instead of drawing a filled
        rectangle.

        * extensions/thuban/wxproj.cpp (project_point): First invert the
        supplied point (which should be in projected coordinates) using
        the layer's projection and then project the point using the
        map's projection.
        (project_points): Use project_point() to project each point.

2003-04-30  Jan-Oliver Wagner <[email protected]>

        * Thuban/Model/layer.py (Layer.SetShapeStore): Fixed a bug:
        don't set the Classification to None if the classfication field
        is None (ie only a DEFAULT).

2003-04-30  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py: Fix some typos.

        * Thuban/UI/mainwindow.py (MainWindow.identify_view_on_demand): Do
        not pop up the dialog if the selection becomes empty (this could
        happen if e.g. a new selection is opened while the identify tool
        is active and dialog had been closed)

2003-04-30  Bernhard Herzog  <[email protected]>

        * Thuban/Model/transientdb.py (TransientTableBase.__init__): New
        instance variable read_record_last_result
        (TransientTableBase.read_record): Make sure reading the same
        record twice works. The implementation uses the new instance
        variable read_record_last_result

        * test/test_transientdb.py
        (TestTransientTable.test_transient_table_read_twice): New test
        case for the above bug-fix.

2003-04-29  Jonathan Coles   <[email protected]>

        * Thuban/common.py: Removed. No longer needed Str2Num. RTbug #1832.

        * Thuban/UI/classgen.py: Remove all uses of Str2Num.

        * Thuban/UI/classifier.py: Remove all uses of Str2Num.
        (ClassTable.SetValueAsCustom): Rename keyword argument in 
        ClassGroup* constructors to match argument name.

2003-04-29  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py (Session.Destroy): Explicitly close the
        transient DB if it exists to make sure it doesn't leave a journal
        file in the temp directory.

        * Thuban/Model/transientdb.py (TransientDatabase.close): Set
        self.conn to None after closing the connection to make sure it's
        not closed twice

2003-04-29  Jonathan Coles   <[email protected]>

        Add a visible parameter in the layer XML tag. The default value is
        "true". If anything other than "false" is specified we also assume
        "true". Addresses RTbug #1025.

        * Doc/thuban.dtd: Add visible parameter to a layer.

        * Thuban/Model/layer.py (BaseLayer.__init__): Change default value
        of visible from 1 to True.
        (Layer.__init__): Change default value of visible from 1 to True.

        * Thuban/Model/load.py (SessionLoader.start_layer): Read visible
        parameter.

        * Thuban/Model/save.py (SessionSaver.write_layer): Save visible
        parameter.

        * test/test_load.py: Add new test data contents_test_visible.
        (LoadSessionTest.setUp): save test data.
        (LoadSessionTest.testLayerVisibility): Test if the visible flag
        is loaded correctly.

        * test/test_save.py (SaveSessionTest.testSingleLayer): Add test
        for saving an invisible layer.

2003-04-29  Jonathan Coles   <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.SetMap): Look up the
        legend dialog box and tell it to change its map to the one
        supplied to SetMap(). Fixes RTbug #1770.

2003-04-29  Bernhard Herzog  <[email protected]>

        Next step of table implementation. Introduce a transient database
        using SQLite that some of the data is copied to on demand. This
        allows us to do joins and other operations that require an index
        for good performance with reasonable efficiency. Thuban now needs
        SQLite 2.8.0 and pysqlite 0.4.1. Older versions may work but I
        haven't tested that.
        
        * Thuban/Model/transientdb.py: New. Transient database
        implementation.

        * test/test_transientdb.py: New. Tests for the transient DB
        classes.

        * Thuban/Model/session.py (AutoRemoveFile, AutoRemoveDir): New
        classes to help automatically remove temporary files and
        directories.
        (Session.__init__): New instance variables temp_dir for the
        temporary directory and transient_db for the SQLite database
        (Session.temp_directory): New. Create a temporary directory if not
        yet done and return its name. Use AutoRemoveDir to have it
        automatically deleted
        (Session.TransientDB): Instantiate the transient database if not
        done yet and return it.

        * Thuban/Model/data.py (ShapefileStore.__init__): Use an
        AutoTransientTable so that data is copied to the transient DB on
        demand.
        (SimpleStore): New class that simply combines a table and a
        shapefile

        * Thuban/Model/table.py (Table, DBFTable): Rename Table into
        DBFTable and update its doc-string to reflect the fact that this
        is only the table interface to a DBF file. Table is now an alias
        for DBFTable for temporary backwards compatibility.

        * Thuban/UI/application.py (ThubanApplication.OnExit): Make sure
        the last reference to the session goes away so that the temporary
        files are removed properly.

        * test/test_load.py (LoadSessionTest.tearDown): Remove the
        reference to the session to make sure the temporary files are
        removed.

2003-04-29  Bernhard Herzog  <[email protected]>

        * Thuban/Model/load.py (XMLReader.__init__, XMLReader.read): Turn
        the __parser instance variable into a normal local variable in
        read. It's only used there and read will never be called more than
        once. Plus it introduces a reference cycle that keeps can keep the
        session object alive for a long time.

2003-04-29  Jonathan Coles   <[email protected]>

        * Thuban/Model/proj.py (Projection): Removed Set*() methods to make 
        Projection an immutable item. Fixes RTbug #1825. 
        (Projection.__init__): Initialize instance variables here.
        (ProjFile.Replace): New. Replace the given projection object with
        the new projection object. This solves the problem of needing the 
        mutator Projection.SetProjection() in the ProjFrame class and
        allows a projection to change parameters without changing its 
        location in the file.

        * Thuban/UI/mainwindow.py (MainWindow.SaveSessionAs): Dialog should
        be of type wxSAVE and should verify overwriting a file.

        * Thuban/UI/projdialog.py (ProjFrame._OnSave): Use the new 
        ProjFile.Replace() method instead of the mutator 
        Projection.SetProjection(). Also requires that we reassign the
        client data to the new projection.

        * test/test_proj.py (TestProjection.test): Test GetName() and
        GetAllParameters()
        (TestProjFile.test): Remove tests for Set*() methods. Add tests
        for Replace().

2003-04-25  Jonathan Coles   <[email protected]>

        * Thuban/Model/save.py (SessionSaver.write_projection): Make sure
        to save the name of the projection.

        * test/test_save.py (SaveSessionTest.testLayerProjection): New
        test to verify layer projections are saved correctly.

2003-04-25  Jonathan Coles   <[email protected]>

        * Thuban/Model/proj.py (Projection.SetName): Set the name
        to "Unknown" if name is None.
        (Projection.SetAllParameters): New. Set the projection's
        parameter list to the one supplied.
        (Projection.SetProjection): New. Set the projection's 
        properties to those of the supplied Projection.

        * Thuban/UI/mainwindow.py (MainWindow.MapProjection): Set
        the dialog title to include the map's title.
        (MainWindow.LayerProjection): Set the dialog title to include
        the layer's title.

        * Thuban/UI/projdialog.py (ProjFrame.__ShowError): Consolidate
        error dialogs into a single method call.
        (ProjFrame.__VerifyButtons): Add more states to check.
        (ProjFrame.__GetProjection): Return the current state of an
        edited projection or None.
        (ProjFrame.__FillAvailList): Remove checks for states that
        shouldn't exist.
        (ProjFrame._OnNew): Clear all selected items and supply
        a projection panel if necessary.

        * test/test_proj.py (TestProjFile.test): Add tests for
        ProjFile.SetAllParameters, ProjFile.SetProjection,
        ProjFile.SetName.

2003-04-25  Jonathan Coles   <[email protected]>

        * Thuban/UI/projdialog.py (ProjFrame.__FillAvailList): Now 
        takes an optional argument to select the current projection.
        This does not guarantee that the item is visible due to
        limited wxWindows functionality. Fixes RTBug #1821.

2003-04-25  Jonathan Coles   <[email protected]>

        * Thuban/Model/load.py (SessionLoader.start_projection): Remember
        the projection name and use it when constructing the Projection
        object.

        * Thuban/Model/proj.py (Projection.__init__): Change the default
        value for 'name' to None and then test if name is equal to None
        in the body of the constructor. This way the caller doesn't have to
        know what the default value should be. Namely, useful in load.py 
        where we have to pick a default value if the 'name' parameter
        doesn't exist in the XML file.

        * test/test_load.py (LoadSessionTest.testLayerProjection): New.
        Tests a file where a layer has a projection.

2003-04-25  Jonathan Coles   <[email protected]>

        * Thuban/Model/layer.py (Layer.TreeInfo): Add an item to the
        tree for projection information.

        * Thuban/Model/load.py (XMLReader.GetFilename): Renamed from 
        XMLReader.GetFileName.
        (SessionLoader): Added support for loading projection tags that
        appear inside a layer.

        * Thuban/Model/proj.py (ProjFile): Document the class. Move 
        back to using a list because the order of the projections in 
        the file is important to maintain. Fixes RTbug #1817.

        * Thuban/Model/resource.py: Rename calls to ProjFile.GetFileName
        to ProjFile.GetFilename.

        * Thuban/Model/save.py (SessionSaver.write_layer): Save projection
        information.

        * Thuban/UI/projdialog.py (ProjFrame._OnAddToList): Renamed from
        ProjFrame._OnSaveAs. Removed old dead code from previous
        implementation.
        (ProjFrame._OnExport): Add support for exporting more than one
        projection to a single file.
        (ProjFrame.__FillAvailList): use string formatting (% operator) 
        to build strings that are (partly) translated. Fixes RTbug #1818.

        * test/test_proj.py (TestProjFile.test): New. Tests the base ProjFile
        class.

2003-04-24  Bernhard Herzog  <[email protected]>

        * po/es.po: Updated Spanish translation by Daniel Calvelo Aros

        * po/fr.po: New. French translation by Daniel Calvelo Aros

        * Thuban/UI/projdialog.py (ProjFrame._OnSaveAs): Don't translate
        empty strings.

2003-04-24  Jonathan Coles   <[email protected]>

        * Thuban/Model/layer.py (Layer.GetProjection): New. Needed to
        implement the interface that the ProjFrame dialog expects.

        * Thuban/Model/proj.py (Projection.SetName): New. Allows the
        name of the projection to be changed.
        (ProjFile): Use a dictionary instead of a list so that removing
        projections is easier and we are sure about uniqueness.
        (ProjFile.Remove): Remove the given projection object.

        * Thuban/Model/resource.py (GetSystemProjFiles, GetUserProjFiles): 
        Return a list with only one projection file instead of searching for 
        any projection file. This simplifies many things if the user can
        only have one system file and one user file.

        * Thuban/UI/classgen.py: Change all references to 
        genCombo to genChoice.

        * Thuban/UI/mainwindow.py: Add a Projection option under the
        layer menu.
        (MainWindow.LayerProjection): New. Open up a projection window
        for a layer.

        * Thuban/UI/projdialog.py: Large changes to how the dialog is
        laid out. Use three panels instead of one. One for the list of
        projections, one for the edit controls, and one for the buttons.
        Fixed resizing problems so that the dialog resizes correctly
        when the projection panel changes. Added import/export, save, and
        new buttons/functionality.

2003-04-24  Bernhard Herzog  <[email protected]>

        First step towards table management. Introduce a simple data
        abstraction so that we replace the data a layer uses more easily
        in the next step.

        * Thuban/Model/data.py: New file with a simple data abstraction
        that bundles shapefile and dbffile into one object.

        * Thuban/Model/session.py (Session.OpenShapefile): New method to
        open shapefiles and return a shape store object

        * Thuban/Model/layer.py (Layer.__init__): Pass the data as a store
        object instead of a shapefile filename. This introduces a new
        instance variable store holding the datastore. For intermediate
        backwards compatibility keep the old instance variables.
        (open_shapefile): Removed. No longer needed with the shape store.
        (Layer.SetShapeStore, Layer.ShapeStore): New methods to set and
        get the shape store used by a layer.
        (Layer.Destroy): No need to explicitly destroy the shapefile or
        table anymore.

        * Thuban/UI/mainwindow.py (MainWindow.AddLayer)
        (MainWindow.AddLayer): Use the session's OpenShapefile method to
        open shapefiles

        * Thuban/Model/load.py (ProcessSession.start_layer): Use the
        session's OpenShapefile method to open shapefiles

        * test/test_classification.py
        (TestClassification.test_classification): Use the session's
        OpenShapefile method to open shapefiles and build the filename in
        a more platform independed way

        * test/test_layer.py (TestLayer.setUp, TestLayer.tearDown):
        Implement to have a session to use in the tests
        (TestLayer.test_arc_layer, TestLayer.test_polygon_layer)
        (TestLayer.test_point_layer, TestLayer.test_empty_layer): Use the
        session's OpenShapefile method to open shapefiles
        (TestLayerLegend.setUp): Instantiate a session so that we can use
        it to open shapefiles.
        (TestLayerLegend.tearDown): Make sure that all references to
        layers and session are removed otherwise we may get a resource
        leak

        * test/test_map.py (TestMapAddLayer.test_add_layer)
        (TestMapWithContents.setUp): Instantiate a session so that we can
        use it to open shapefiles.
        (TestMapWithContents.tearDown): Make sure that all references to
        layers, maps and sessions are removed otherwise we may get a
        resource leak
        ("__main__"): use support.run_tests() so that more info about
        uncollected garbage is printed

        * test/test_save.py (SaveSessionTest.testSingleLayer): Use the
        session's OpenShapefile method to open shapefiles
        ("__main__"): use support.run_tests() so that more info about
        uncollected garbage is printed

        * test/test_selection.py (TestSelection.tearDown): Make sure that
        all references to the session and the selection are removed
        otherwise we may get a resource leak
        (TestSelection.get_layer): Instantiate a session so that we can
        use it to open shapefiles.
        ("__main__"): use support.run_tests() so that more info about
        uncollected garbage is printed

        * test/test_session.py (TestSessionBase.tearDown)
        (TestSessionWithContent.tearDown): Make sure that all references
        to the session and layers are removed otherwise we may get a
        resource leak
        (TestSessionWithContent.setUp): Use the session's OpenShapefile
        method to open shapefiles

2003-04-24  Jonathan Coles   <[email protected]>

        * Thuban/Model/load.py (XMLReader.read): Should have been checking
        if the file_or_filename object had the 'read' attribute.

2003-04-23  Jonathan Coles   <[email protected]>

        * Thuban/Model/resource.py: Fixes RTbug #1813.
        (ReadProjFile): Add documentation about which exceptions are raised. 
        Always pass the exceptions up to the caller.
        (GetProjFiles): If the directory can't be read return an empty list.
        If any of the proj files can't be read skip that file and go
        on to the next one.

        * test/test_proj.py: Added test cases to handle nonexistent files,
        unreadable files, and files that don't parse correctly.

2003-04-23  Jonathan Coles   <[email protected]>

        Projection dialog. Allows the user to select from a list
        of projection templates and optionally edit them and save new ones.

        * Thuban/UI/projdialog.py (ProjFrame): New. Main dialog.
        (ProjPanel): Base class for projection specific panels.
        (TMPanel): Projection panel for Transverse Mercartor.
        (UTMPanel): Projection panel for Universal Transverse Mercartor.
        (LCCPanel): Projection panel for Lambert Conic Conformal.
        (GeoPanel): Projetion panel for Geographic Projection.

2003-04-23  Jonathan Coles   <[email protected]>

        * Thuban/Model/load.py (XMLReader): Renamed from XMLProcessor to
        promote symmetry. There now exists XMLReader and XMLWriter.
        (XMLReader.read): New. Call to read the given file descriptor or
        filename.
        (XMLReader.close): New. Make sure the file is closed.
        (XMLReader.GetFileName): New. Return just the file name that is being
        read from.
        (XMLReader.GetDirectory): New. Return just the directory of the file
        that is being read.
        (XMLReader.AddDispatchers): New. Take a dictionary which contains
        the names of functions to call as the XML tree is parsed.
        (XMLReader.startElementNS): Updated to use new dispatcher dictionary.
        (XMLReader.endElementNS): Updated to use new dispatcher dictionary.
        (SessionLoader): Removed class variables start_dispatcher and
        end_dispatcher since this functionality is now part of a class
        instance. Fixes RTbug #1808.
        (SessionLoader.__init__): Add dispatcher functions.
        (load_xmlfile): Code was moved into the XMLReader.read().
        (load_session): Use modified SessionLoader.

        * Thuban/Model/map.py (Map.GetProjection): New. Returns the 
        map's projection.

        * Thuban/Model/proj.py (Projection.GetParameters): Renamed to 
        GetAllParameters. 
        (Projection.GetParameter): Returns the value for the given parameter.

        * Thuban/Model/resource.py: Use XMLReader and XMLWriter.
        (GetProjFiles): Renamed from GetProjections. Now returns a list
        of ProjFile objects.
        (GetSystemProjFiles): Renamed from GetSuppliedProjections. Returns
        a list of ProjFile objects whose files are not user defined.
        (GetUserProjFiles): Renamed from GetUserProjections. Returns a
        list of ProjFile objects whose files are user defined.
        (ProjFileReader): Extend new XMLReader.

        * Thuban/Model/save.py (XMLWriter): Renamed from XMLSaver to
        promote symmetry.

        * Thuban/UI/classgen.py (ClassGenDialog.__init__): Use a wxChoice
        control instead of a wxComboBox. wxChoice controls do not generate
        events as the uses highlights possible choices which fixes problems
        with resizing the dialog when the use selects an option.

        * Thuban/UI/classifier.py (Classifier.__init__): Use a wxChoice
        control instead of a wxComboBox.

        * Thuban/UI/mainwindow.py (MainWindow.Projection): Use new projection
        dialog.

        * test/test_proj.py (TestProjection.test): New tests for GetParameter
        method.

2003-04-22  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py: Remove some unused imports and global
        constants

        * Thuban/UI/identifyview.py (IdentifyListCtrl.selected_shape)
        (IdentifyGridCtrl.selected_shape): Use table, not shapetable.

2003-04-17  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py: Don't import LAYER_LEGEND_CHANGED.
        (Layer): Update doc-string since LAYER_LEGEND_CHANGED is not used
        anymore.
        (Layer.BoundingBox, Layer.GetFieldType, Layer.NumShapes)
        (Layer.ShapeType, Layer.Shape): No need to call
        self.open_shapefile since it's always called in __init__

        * Thuban/UI/application.py (ThubanApplication.MainLoop): Removed.
        In wxPython 2.4 there's no need to extend MainLoop anymore since
        wxPython itself makes sure OnExit is called.

2003-04-16  Jonathan Coles   <[email protected]>

        Initial putback of projection management code. Includes new
        classes to read and write projection files. The current load
        and save classes were abstracted a bit so they could be reused.
        The Projection class was extended to provide new methods and
        have a name.

        * Thuban/Model/load.py (XMLProcessor): New. Contains all the
        general XML reading methods that were part of ProcessSession.

        * Thuban/Model/proj.py (Projection.__init__): Accepts an optional
        name.
        (ProjFile): New. Represents a file that contains projection
        information.

        * Thuban/Model/resource.py: New. Contains general utilities
        for read and writing projection files.

        * Thuban/Model/save.py (XMLSaver): New. Contains all the 
        general XML writing methods that were part of SessionSaver.
        (SessionSaver): Renamed from Saver.

        * test/test_proj.py: New test cases for the projection
        file read and write functions.

2003-04-16  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: Use repr() around values 
        in the ClassGroup*.__repr__() methods so it is clearer when
        a value is a string and when it is a number.

        * test/test_load.py: Rework the classification test to test
        that we can load old files. 
        (testLabels): Test a file where the groups have labels.

2003-04-16  Bernhard Herzog  <[email protected]>

        Safer implementation of the performance enhancements of the
        low-level renderer:
        
        * extensions/thuban/wxproj.cpp (extract_projection)
        (extract_pointer): Rename extract_projection to extract_pointer
        and redefine its purpose to return the pointer stored in a CObject
        returned by the object's cobject method. Update all callers.
        (s_draw_info, free_draw_info, draw_polygon_init): Implement the
        handling of these low-level parameters so that each s_draw_info
        instance is handled as a CObject at python level that also
        contains real references to the actual python objects which
        contain the values in the struct. Add free_draw_info as the
        destructor.
        (draw_polygon_shape): Add the py_draw_info parameter which must a
        cobject containing an s_draw_info pointer.

        * Thuban/UI/renderer.py (MapRenderer.polygon_render_param): New
        method to instantiat the low-level render parameter
        (MapRenderer.draw_shape_layer): Use the new method. Remove some
        commented out code.
        (MapRenderer.draw_polygon_shape): Make the first parameter not the
        layer but the low-level render parameter
        (ScreenRenderer.draw_shape_layer): Use the low-level render
        parameter.

2003-04-15  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: Implemented __repr__ for
        the ClassGroup* classes to make debugging a bit easier.
        (ClassGroup.SetLabel): Check that the string is an instance
        of StringTypes not StringType. Accounts for Unicode strings.

        * Thuban/Model/color.py: Implemented __repr__ to make 
        debugging a bit easier.

        * Thuban/Model/save.py (Saver.write_classification): Need to
        save the group label.

        * test/test_load.py (testClassification): New. Loads the
        iceland_sample_test.thuban file and checks if it was loaded
        correctly.

2003-04-15  Jonathan Coles   <[email protected]>

        * extensions/thuban/wxproj.cpp (draw_polygon_init): New. Used
        to improve rendering performance by initializing the variables
        that are not change each time draw_polygon_shape() is called.
        The values are stored in a global struct draw_info.
        (draw_polygon_shape): Removed initialization code that is
        now in draw_polygon_init().

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Make
        drawing initialization call to draw_polygon_init()
        (MapRenderer.draw_polygon_shape): Use new signature of
        draw_polygon_shape.

        * Thuban/UI/classgen.py (GenUniformPanel): Fix spin control
        weirdness by setting the range to (1, maxint).

        * Thuban/Model/classification.py (ClassGroupProperties): Make
        instance variables private and optimize comparison operator
        by first checking if the color references are the same.
        (ClassGroupSingleton): Make instance variables private.
        (ClassGroupRange): Make instance variables private.

        * HOWTO-Release: Filled in missing steps for releasing packages.

2003-04-15  Bernhard Herzog  <[email protected]>

        First stab at internationalized messages:

        * Thuban/__init__.py (_): Implement the translation function for
        real using the python gettext module.

        * Thuban/UI/classifier.py (ClassTable.GetRowLabelValue): Don't
        translate empty strings.

        * Thuban/UI/application.py (ThubanApplication.read_startup_files):
        Add a missing space to a warning message

        * po/README: New. Notes about the management of the translation
        files.

        * po/Makefile: New. Makefile to help manage the translation files.

        * po/es.po: New. Spanish translation by Daniel Calvelo Aros

        * MANIFEST.in: Include the *.mo files in Resources/Locale and the
        translations and support files in po/

        * setup.py (data_files): Add the *.mo files to the data_files too

        * README: Add note about the translations when building from CVS

2003-04-14  Jonathan Coles   <[email protected]>

        * Thuban/UI/dock.py: Fixes some window resizing problems most
        noticable under windows. Always assume the button bitmaps will 
        be there. Code clean up. 
        (DockabelWindow.Dock, DockableWindow.UnDock): Force all the
        images for the dock/undock button to the same images.
        Work around for RTbug #1801. 

        * Thuban/UI/legend.py (LegendPanel.__init__): The toolbar should
        be allowed to grow within the sizer. Fixes a bug under Windows
        where the toolbar wasn't being drawn.

2003-04-14  Frank Koormann   <[email protected]>

        * Resources/Bitmaps/dock_12.xpm, Resources/Bitmaps/undock_12.xpm:
        Updated design to try to make the button functionality more
        transparent.

2003-04-14  Jonathan Coles   <[email protected]>

        * Thuban/UI/legend.py (LegendPanel.__init__): Call Create() to
        finalize the intialization of the panel.

        * Thuban/UI/dock.py (DockPanel.Create): New. Finalizes the 
        creation of the panel. Should be the last thing called in the
        initializer of a subclass.

        * Thuban/UI/classgen.py (ClassGenDialog.__init__): Actively
        set the current selections in the combo boxes. This is needed
        under Windows.

        * Thuban/UI/classifier.py (Classifier.__init__): Add a top
        level panel to the dialog so that the background colors are
        consistent under Windows.

2003-04-11  Jonathan Coles   <[email protected]>

        * Thuban/UI/classgen.py: Change color ramps to start at white 
        not black.

        * Thuban/UI/legend.py: Enable/disable the legend buttons when
        the legend changes. Fixes RTbug #1793.

        * test/test_classification.py: Added test for copying of
        classifications.

2003-04-11  Jonathan Coles   <[email protected]>

        * Thuban/UI/resource.py: New. Centralize the loading of resources 
        such as bitmaps.

        * Thuban/UI/classgen.py (GenUniquePanel.__init__): Reordered buttons,
        added images to the move buttons, added 'reverse' button.
        (CustomRampPanel.__init__): Added images to the move buttons.
        (GreyRamp): New. Generates a ramp from white to black.
        (HotToColdRamp): New. Generates a ramp from cold to hot colors.

        * Thuban/UI/classifier.py: Refactored ID's from ID_CLASSIFY_* to
        ID_PROPERTY_*.
        (Classifier.__init__): Minor changes to the layout.
        (Classifier._OnTitleChanged): Listen for when the user edits the
        title and update the dialog's title and the layer's title.

        * Thuban/UI/dock.py: Use new bitmaps for the control buttons.

        * Thuban/UI/legend.py: Use new bitmaps for the control buttons.
        (LegendTree._OnMsgLayerTitleChanged): Change the displayed title
        if the layer's title changes.

        * Thuban/UI/mainwindow.py: Added new menu item and associated code
        to open a dialog to rename the map. 
        (MainWindow): Use new resource class to import bitmaps.

2003-04-11  Jonathan Coles   <[email protected]>

        * Resources/Bitmaps/close_12.xpm, Resources/Bitmaps/dock_12.xpm,
        Resources/Bitmaps/group_use.xpm, Resources/Bitmaps/group_use_all.xpm,
        Resources/Bitmaps/group_use_none.xpm, 
        Resources/Bitmaps/group_use_not.xpm,
        Resources/Bitmaps/hide_layer.xpm, 
        Resources/Bitmaps/layer_properties.xpm,
        Resources/Bitmaps/lower_layer.xpm, Resources/Bitmaps/raise_layer.xpm,
        Resources/Bitmaps/show_layer.xpm, Resources/Bitmaps/undock_12.xpm:
        New.

2003-04-10  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: (ClassGroupRange.__init__): 
        Should pass group to ClassGroup constructor.

2003-04-10  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: (ClassGroup): Move all the common
        methods of the derived classes ([Set|Get]Properties(), __eq__, __ne__)
        here. Implement SetVisible(), IsVisible().
        (ClassGroup.__init__): Add group parameter which acts as a copy
        constructor.

        * Thuban/UI/classifier.py (ClassTable): Add a new column for the
        "Visible" check boxes.
        (Classifier): Rename the buttons and refactor the code to match
        the new labels.

        * Thuban/UI/legend.py: Classify button is now called "Properties".
        Refactored the code to change variable names.
        (LegendTree.__FillTreeLayer): Only list a group if it is visible.

        * Thuban/UI/mainwindow.py: MainWindow.OpenClassifier renamed to
        MainWindow.OpenLayerProperties. MainWindow.LayerEditProperties
        renamed to MainWindow.LayerEditProperties.
        (MainWindow.ToggleLegend): Don't include map name in legend title.
        (MainWindow.SetMap): Added the map name to the window title.
        (MainWindow.LayerFillColor, MainWindow.LayerTransparentFill,
        MainWindow.LayerOutlineColor, MainWindow.LayerNoOutline): Removed.
        Functionality is found in the layer properties dialog.

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Only
        draw visible groups.

2003-04-09  Jonathan Coles   <[email protected]>

        * Thuban/UI/classgen.py: Modifications to allow simple
        addition and selection of new color schemes.
        (MonochromaticRamp): New. Generates a ramp between two colors.
        (RedRamp): New. Generates a ramp of all red.
        (GreenRamp): New. Generates a ramp of all green.
        (BlueRamp): New. Generates a ramp of all blue.

2003-04-09  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py (Classification.__deepcopy__):
        Need to copy over field and fieldType attributes.

        * Thuban/Model/table.py (Table.field_range): New. Retrive the
        maximum and minimum values over the entire table for a given
        field.
        (Table.GetUniqueValues): New. Retrieve all the unique values
        in the table for a given field.

        * Thuban/UI/classgen.py: Renamed GenRangePanel to GenUniformPanel.
        (GenUniquePanel): New. Controls to allow the user to select
        which unique field values they would like in the classification.
        (CustomRampPanel): Code that was in ClassGenDialog that allows
        the user to select the properties for a custom ramp.
        (ClassGenerator.GenUniformDistribution): Was called GenerateRanges.

        * Thuban/UI/classifier.py: Removed a lot of debugging code.
        (Classifier._SetClassification): Callback method so that the
        class generator can set the classification in the grid.
        (ClassGroupPropertiesCtrl): New. Encapsulates the drawing and
        editing of a group properties class into a wxWindows control.

        * Thuban/UI/dock.py: It was decided that if the user closes
        a dockable window the window should simply hide itself. That
        way if the user wants to show the dock again it appears in the
        same place as it was when it was closed.
        (DockableWindow.Destroy): Call renamed method OnDockDestroy().
        (DockableWindow._OnButtonClose): Hide the window instead of 
        destroying it.
        (DockableWindow._OnClose): Hide the window instead of 
        destroying it.

        * Thuban/UI/legend.py (LegendTree): Use a private method to 
        consistently set the font and style of the text. Fixes RTbug #1786.

        * Thuban/UI/mainwindow.py: Import just the Classifier class.

2003-04-07  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (main_menu): Move the toggle_legend item
        to the map module

2003-04-07  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.ShowSessionTree): Removed in
        favor of ToggleSessionTree
        (MainWindow.ToggleSessionTree): New method to toggle visibility of
        the session tree.
        (MainWindow.SessionTreeShown): New method to return whether the
        session tree is currently shown.
        (MainWindow.ToggleLegend): New method to toggle visibility of the
        legend
        (MainWindow.ShowLegend): Implement in terms of ToggleLegend and
        LegendShown
        (MainWindow.LegendShown): New method to return whether the legend
        is currently shown.
        (_method_command): Add checked parameter so we can define check
        menu items
        (_has_tree_window_shown, _has_legend_shown): Use the appropriate
        mainwindow methods.
        (show_session_tree, show_legend commands): Removed.
        (toggle_session_tree, toggle_legend commands): New commands to
        toggle the visibility of the dialogs

2003-04-07  Jonathan Coles   <[email protected]>

        * Thuban/UI/classgen.py: Fix Windows problem.

        * Thuban/UI/dock.py: Fix Windows problem.

        * Thuban/UI/mainwindow.py: Use False instead of false.
        (MainWindow.ShowLegend): Remove unnecessary switch parameter.

2003-04-07  Jonathan Coles   <[email protected]>

        Since we now say that the order of the groups in a classification
        matters, it makes sense to be able to manipulate that order. Most
        of the changes to Thuban/Model/classification.py are to that end.

        * Thuban/Model/classification.py (Classification.AppendGroup,
        Classification.InsertGroup, Classification.ReplaceGroup,
        Classification.RemoveGroup, Classification.GetGroup): Do as the
        names imply.
        (Classification.FindGroup): This was called GetGroup, but GetGroup
        takes an index, while FindGroup takes a value.
        (Classification.__deepcopy__): Copy all the groups, BUT NOT THE LAYER
        REFERENCE. Currently there is a cyclic reference between the layer
        and its classification. If the classification doesn't need to know
        its owning layer we can change this, since it may make sense to be
        able to use the same classification with different layers.

        * Thuban/Model/load.py: Use Classification.AppendGroup(), not AddGroup()

        * Thuban/UI/classgen.py: Use Classification.AppendGroup(), 
        not AddGroup()

        * Thuban/UI/classifier.py: Now that we can depend on the order in 
        a Classification and have methods to manipulate that order we don't
        need to use our own data structures in the grid. We can simply make
        the grid/table access the information they need from a copy of 
        the classification object.
        (Classifier._OnCloseBtn): Event handler for when the user clicks
        'Close'. This is needed so if the user applies changes and then
        continues to change the table the user has the option of discarding
        the most recent changes and keeping what they applied.

        * Thuban/UI/mainwindow.py: Put "Show Legend" and "Show Session Tree"
        into the same group.

        * extensions/thuban/wxproj.cpp (check_version): If Thuban is compiled
        with a really old version of proj, PJ_VERSION won't even be defined.
        If it isn't defined then just compile so that the function always
        returns Py_False.

        * test/test_classification.py: Fix tests to use the renamed methods.
        Still need to write tests for the new methods.

2003-04-04  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py (Classifier.__SelectField): Move the
        call to SetSelection out of the method and before the call
        to __SelectField in __init__. This prevents a recursion of events
        when _OnFieldSelect is triggered by the user.

2003-04-04  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: Rename Color.None to 
        Color.Transparent.
        (ClassGroupProperties.SetLineColori, ClassGroupProperties.SetFill): 
        Don't bother copying the color, since Colors are immutable.

        * Thuban/Model/color.py, Thuban/Model/layer.py, Thuban/Model/load.py,
        Thuban/UI/classifier.py, Thuban/UI/mainwindow.py,
        Thuban/UI/renderer.py, Thuban/UI/view.py:
        Rename Color.None to Color.Transparent.
    
        * test/test_classification.py, test/test_load.py: Rename Color.None 
        to Color.Transparent.

2003-04-04  Jonathan Coles   <[email protected]>
 
        * Thuban/Model/classification.py: Fix assert calls.
        (ClassGroupProperties.SetLineColor, ClassGroupProperties.SetFill):
        Copy the color parameter rather than hold onto a reference.

        * Thuban/Model/color.py (Color.__copy__, Color.__deepcopy): Copy
        the color object.
        (NoColor.__copy__, NoColor.__deepcopy): Return 'self' so that we
        are sure there exists only one refernce to Color.None in the system.
        This allows us to use 'is' rather than the comparision functions.
        
        * Thuban/Model/save.py: Fix assert calls.
        
        * Thuban/UI/classifier.py: Fix assert calls.
        (ClassGrid._OnCellDClick): Call up to the classifier to open the 
        dialog to edit the groups properties.
        (ClassGrid._OnCellResize): Make sure that the scollbars are drawn
        correctly if a cell is resized.
        (ClassTable.SetClassification): New. Changes the classification
        that is in the table.
        (ClassTable.__SetRow): Allow groups to be prepended.
        (Classifier): New code for opening the EditProperties and 
        GenerateRanges dialogs.
        (SelectPropertiesDialog.__GetColor): Only set the color in the
        color dialog if the current color is not None.
        
        * Thuban/UI/dock.py: Fix assert calls.
        
        * Thuban/UI/legend.py: Fix assert calls.
        
        * Thuban/UI/renderer.py: Fix assert calls.
        
        * Thuban/UI/classgen.py (ClassGenDialog): Dialog for generating
        classifications.
        (GenRangePanel): Panel specific to range generation.
        (GenSingletonPanel): Panel specific to singleton generation.
        (ClassGenerator): Class responsible for actually generating
        the classification from the data gathered in the dialog box.
        (PropertyRamp): Generates properties whose values range from
        a starting property to an ending property.

2003-04-03  Bernhard Herzog  <[email protected]>

        * test/support.py (print_garbage_information): New function that
        prints information about still connected messages and memory
        leaks.
        (run_suite): Removed.
        (run_tests): New function for use as a replacement of
        unittest.main in the test_* files. This one calls
        print_garbage_information at the end.

        * test/runtests.py (main): Use support.print_garbage_information

        * test/test_layer.py: Use support.run_tests instead of
        unittest.main so we get memory leak information
        (TestLayer.test_arc_layer, TestLayer.test_polygon_layer)
        (TestLayer.test_point_layer, TestLayer.test_empty_layer)
        (TestLayerLegend.test_visibility): Call the layer's Destroy method
        to fix a memory leak.

        * test/test_classification.py: Use support.run_tests instead of
        unittest.main so we get memory leak information
        (TestClassification.test_classification): Call the layer's Destroy
        method to fix a memory leak.

2003-04-02  Bernhard Herzog  <[email protected]>

        * extensions/thuban/wxproj.cpp (check_version, check_version_gtk):
        Handle the reference counts of the return value and errors in
        PyArg_ParseTuple correctly.

        * Thuban/UI/application.py (ThubanApplication.OpenSession): Make
        sure the filename is absolute to avoid problems when saving the
        session again

        * Thuban/Model/table.py: Remove unnecessary import. Fix a typo.

2003-04-01  Jonathan Coles   <[email protected]>

        *  Thuban/UI/renderer.py (MapRenderer.draw_point_shape): Check
        that there actually are points in the returned list of points
        before trying to index into the list. The list may be empty if
        the shape is a Null Shape.

2003-04-01  Bernhard Herzog  <[email protected]>

        * test/test_map.py: Don't use from <module> import *

2003-04-01  Jonathan Coles   <[email protected]>

        * Thuban/Model/session.py: Use LAYER_CHANGED instead of 
        LAYER_LEGEND_CHANGED

        * Thuban/UI/dock.py (DockableWindow._OnButtonClose): Call
        self.Destroy() to close the window after yesterday's changes.

        * test/test_map.py, test/test_session.py: Fix messages that
        are sent from maps and layers.

2003-03-31  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py: Commented out some debugging statements.
        (ClassDataPreviewer.Draw): Draw rectangles for polygon layers per
        RTbug #1769.

        * Thuban/UI/dock.py (DockableWindow.UnDock): Restore size and 
        position (although position doesn't work yet under GTK).
        (DockableWindow.Destroy): New. Called when the window must be
        closed. Namely needed when the DockFrame closes and must close
        its children.
        (DockFrame): Listen for EVT_CLOSE and destroy all children.

        * Thuban/UI/legend.py (LegendPanel.Destroy): New. Cleans up
        when then window is told to close.
        (LegendTree._OnMsgLayerChanged): Fixes a seg fault bug. See
        comment in source for more info.

        * Thuban/UI/main.py: Show the legend by default when Thuban starts.

        * Thuban/UI/mainwindow.py: Renamed OnClose to _OnClose for
        symmetry with other such methods.
        (MainWindow.ShowLegend): Show the legend docked by default.

2003-03-28  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py: Support for highlighting a specific
        group within the grid when the classification dialog is opened. 
        Also contains a lot of debugging printouts which will later
        be removed.

        * Thuban/UI/dock.py: Complete rework on the dock code so that
        that it is fairly removed from the rest of the Thuban application.
        It is easy to add new docks which the rest of the program having
        to be aware of them.

        * Thuban/UI/legend.py: Modifications to support selecting a 
        specific group in the classification dialog. Changed how layers
        are drawn when the layer is visible/invisible.

        * Thuban/UI/mainwindow.py: Removed legend specific code and
        replaced it with calls to the new dock code.

        * Thuban/UI/renderer.py (MapRenderer.__init__): Added assert
        to check if scale > 0. Trying to track down a divide by zero.

2003-03-26  Jonathan Coles   <[email protected]>

        * Thuban/UI/legend.py: Removed unnecessary LegendDialog class.
        (LegendPanel): Removed _OnDock()/_OnUnDock() methods which are
        now part of DockableWindow. 
        (LegendPanel.DoOnSelChanged): Select the current layer in the
        map.
        (LegendTree._OnSelChanged): Call LegendPanel.DoOnSelChanged()
        with the selected layer and/or group.

2003-03-26  Jonathan Coles   <[email protected]>

        This putback contains the code for dockable windows. There is
        no support in wxWindows as of this date for windows that can
        attach themselves to other windows. 

        The current model contains a DockableWindow which has a parent 
        window for when it is detached and a dock window that it puts 
        its contents in when it is docked. The contents of a DockableWindow 
        must be a DockPanel. DockPanel itself derives from wxPanel.

        * Thuban/Model/layer.py (Layer.ClassChanged): Send a LAYER_CHANGED
        message, not a LAYER_LEGEND_CHANGED message.

        * Thuban/Model/map.py (Map): Forward LAYER_CHANGED messages.

        * Thuban/UI/classifier.py (Classifier.__init__): Use wxADJUST_MINSIZE
        as one of the style properties for the fieldTypeText item to
        be sure that its size is correct when the text changes.

        * Thuban/UI/dock.py: New. Classes for the DockPanel and
        DockableWindow.

        * Thuban/UI/legend.py: Added some more buttons and made the
        LegendPanel a DockPanel.

        * Thuban/UI/mainwindow.py: Added sash windows to the main window
        and supporting functions for manipulating the sashes.
        (MainWindow.ShowLegend): Create a DockableWindow with the 
        LegendPanel as the contents.

        * Thuban/UI/messages.py: Added DOCKABLE_* messages

        * Thuban/UI/view.py (MapCanves.SetMap): Listen for LAYER_CHANGED,
        not LAYER_LEGEND_CHANGED, messages.

2003-03-25  Jonathan Coles   <[email protected]>

        * setup.py: Added custom script bdist_rpm_build_script so that
        when the rpm is built the path to wx-config is correct.

        * setup.cfg: Added line saying to use the custom build script

2003-03-20  Jonathan Coles   <[email protected]>

        Initial implementation of the Legend. 

        * Thuban/UI/legend.py: New. Creates a window that shows the map's
        Legend information and allows the user to add/modify classifications
        and how the layers are drawn on the map.

        * setup.py: New command 'build_docs' which currently uses
        happydoc to generate html documentation for Thuban.

        * Thuban/Model/classification.py (ClassGroup.GetDisplayText): New.
        Returns a string which is appropriately describes the group.

        * Thuban/Model/layer.py (Layer.SetClassification): Generate a
        LAYER_CHANGED event instead of a LAYER_LEGEND_CHANGED event.

        * Thuban/Model/map.py (Map): Rename messages and use new, more
        specific, messages.

        * Thuban/Model/messages.py: New message to indicate that a layer's
        data has changed (LAYER_CHANGED). New map messages to indicate
        when layers have been added/removed/changed or if the stacking order
        of the layers has changed.

        * Thuban/Model/session.py: Rename and use new messages.

        * Thuban/UI/classifier.py: Remember if any changes have actually
        been applied so that if the dialog is cancelled without an application
        of changes we don't have to set a new classification.
        (ClassDataPreviewer): Pulled out the window specific code and put it
        ClassDataPreviewWindow. ClassDataPreviewer can then be used to draw
        symbols on any DC.
        
        * Thuban/UI/mainwindow.py: New code to open the legend.

        * Thuban/UI/view.py: Use new message names.

2003-03-19  Jonathan Coles   <[email protected]>

        * Thuban/UI/main.py (verify_versions): New. Checks the versions
        of Python, wxPython, and some other libraries.

        * extensions/thuban/wxproj.cpp (check_version): Checks the given
        version against what wxproj was compiled with.
        (check_version_gtk): If wxproj was compiled with gtk then check
        the given version against the version of the gtk library 
        currently being used.

2003-03-14  Bernhard Herzog  <[email protected]>

        * test/test_command.py: Run the tests when the module is run as a
        script

2003-03-14  Bernhard Herzog  <[email protected]>

        Implement selection of multiple selected shapes in the same layer:

        - Introduce a new class to hold the selection. This basically
          replaces the interactor which was nothing more than the
          selection anyway. A major difference is of course that the new
          selection class supports multiple selected shapes in one layer
        
        - Move the object that represents the selection from the
          application to the canvas. The canvas is a better place than the
          application because the selection represents which shapes and
          layer of the map displayed by the canvas are selected and
          affects how the map is drawn.

        - Make the selection and its messages publicly available through
          the mainwindow.

        - The non-modal dialogs do not get a reference to the interactor
          anymore as they can simply refer to their parent, the
          mainwindow, for the what the interactor had to offer.

        * Thuban/UI/selection.py: New module with a class to represent the
        selection.

        * Thuban/UI/messages.py (SELECTED_TABLE, SELECTED_MAP): Remove
        these unused messages

        * Thuban/UI/application.py (ThubanApplication.OnInit)
        (ThubanApplication.OnExit, ThubanApplication.SetSession): The
        interactor is gone now.
        (ThubanApplication.CreateMainWindow): There is no interactor
        anymore so we pass None as the interactor argument for now for
        compatibility.

        * Thuban/UI/view.py (MapCanvas.delegated_messages)
        (MapCanvas.Subscribe, MapCanvas.Unsubscribe): In Subscribe and
        Unsubscribe, delegate messages according to the delegated_messages
        class variable.
        (MapCanvas.__getattr__, MapCanvas.delegated_methods): Get some
        attributes from instance variables as described with the
        delegated_methods class variable.
        (MapCanvas.__init__): New instance variable selection holding the
        current selection
        (MapCanvas.do_redraw): Deal with multiple selected shapes. Simply
        pass them on to the renderer
        (MapCanvas.SetMap): Clear the selection when a different map is
        selected.
        (MapCanvas.shape_selected): Simple force a complete redraw. The
        selection class now takes care of only issueing SHAPES_SELECTED
        messages when the set of selected shapes actually does change.
        (MapCanvas.SelectShapeAt): The selection is now managed in
        self.selection

        * Thuban/UI/mainwindow.py (MainWindow.delegated_messages)
        (MainWindow.Subscribe, MainWindow.Unsubscribe): In Subscribe and
        Unsubscribe, delegate messages according to the delegated_messages
        class variable.
        (MainWindow.delegated_methods, MainWindow.__getattr__): Get some
        attributes from instance variables as described with the
        delegated_methods class variable.
        (MainWindow.__init__): The interactor as ivar is gone. The
        parameter is still there for compatibility. The selection messages
        now come from the canvas.
        (MainWindow.current_layer, MainWindow.has_selected_layer):
        Delegate to the the canvas.
        (MainWindow.LayerShowTable, MainWindow.Classify)
        (MainWindow.identify_view_on_demand): The dialogs don't need the
        interactor parameter anymore.

        * Thuban/UI/tableview.py (TableFrame.__init__)
        (LayerTableFrame.__init__, LayerTableFrame.OnClose)
        (LayerTableFrame.row_selected): The interactor is gone. It's job
        from the dialog's point of view is now done by the mainwindow,
        i.e. the parent. Subscribe to SHAPES_SELECTED instead
        of SELECTED_SHAPE
        
        * Thuban/UI/dialogs.py (NonModalDialog.__init__): The interactor
        is gone. It's job from the dialog's point of view is now done by
        the mainwindow, i.e. the parent.
        
        * Thuban/UI/classifier.py (Classifier.__init__): The interactor is
        gone. It's job from the dialog's point of view is now done by the
        mainwindow, i.e. the parent.

        * Thuban/UI/tree.py (SessionTreeView.__init__): The interactor is
        gone. It's job from the dialog's point of view is now done by the
        mainwindow, i.e. the parent.
        (SessionTreeCtrl.__init__): New parameter mainwindow which is
        stored as self.mainwindow. The mainwindow is need so that the tree
        can still subscribe to the selection messages.
        (SessionTreeCtrl.__init__, SessionTreeCtrl.unsubscribe_all)
        (SessionTreeCtrl.update_tree, SessionTreeCtrl.OnSelChanged): The
        selection is now accessible through the mainwindow. Subscribe to
        SHAPES_SELECTED instead of SELECTED_SHAPE

        * Thuban/UI/identifyview.py (IdentifyView.__init__): Use the
        SHAPES_SELECTED message now.
        (IdentifyView.selected_shape): Now subscribed to SHAPES_SELECTED,
        so deal with multiple shapes
        (IdentifyView.__init__, IdentifyView.OnClose): The interactor is
        gone. It's job from the dialog's point of view is now done by the
        mainwindow, i.e. the parent.

        * Thuban/UI/controls.py (RecordListCtrl.fill_list): The second
        parameter is now a list of shape ids.
        (RecordTable.SetTable): The second parameter is now a list of
        indices.

        * Thuban/UI/renderer.py (ScreenRenderer.RenderMap): Rename the
        selected_shape parameter and ivar to selected_shapes. It's now a
        list of shape ids.
        (MapRenderer.draw_label_layer): Deal with multiple selected
        shapes. Rearrange the code a bit so that the setup and shape type
        distinctions are only executed once.

        * test/test_selection.py: Test cases for the selection class

2003-03-11  Jonathan Coles   <[email protected]>

        * Thuban/Model/load.py: Temporary fix so that the xml reader
        doesn't cause Thuban to crash.

        * Thuban/Model/layer.py: Handle the cyclic references between
        a layer and its classification better, and be sure to disconnect
        the classification from the layer when the layer is destroyed
        so that we don't maintain a cyclic reference that may not be
        garbage collected.

        * Thuban/Model/classification.py: See comment for layer.py.

2003-03-12  Jan-Oliver Wagner <[email protected]>

        * HOWTO-Release: New. Information on the steps for releasing
        a new version of Thuban.

2003-03-11  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py: Add normal border to SelectPropertiesDialog.
        Use True instead of true.
        (Classifier): Should have a single panel in which all the controls lie.

        * Thuban/UI/proj4dialog.py: Add normal border.

        * Thuban/UI/tree.py: Fixed problem with bad item images under Windows.

        * Thuban/UI/mainwindow.py: Use True instead of true.

        * setup.py: Update some definitions to use wxWindows2.4 files

        * Data/iceland_sample_class.thuban: Fixed file so that the
        field_type information is present.

2003-03-10  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py (Classifier.__init__): Make the
        field type label grow so that when the text changes the
        size is updated correctly. This may be a wxWindows bug.

2003-03-10  Jonathan Coles   <[email protected]>

        * Thuban/UI/application.py: Changed SESSION_CHANGED to
        SESSION_REPLACED.

        * Thuban/UI/classifier.py: Wrap text with _(). 
        (ClassGrid.CreateTable): Set dimensions and size hints here,
        instead of in Reset, so we only set the size once.

        * Thuban/UI/dialogs.py: Don't need Shutdown(); just use Close()!

        * Thuban/UI/mainwindow.py (MainWindow.prepare_new_session):
        Call Close() instead of Shutdown().

        * Thuban/UI/messages.py: Changed SESSION_CHANGED to SESSION_REPLACED.

        * Thuban/UI/tree.py: Changed SESSION_CHANGED to SESSION_REPLACED.
        Go back to using OnClose() instead of Shutdown().

2003-03-10  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py (Classifier): SelectField() needed
        to know the old field index as well as the new one.

2003-03-10  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py (Classifier): Use __SelectField()
        to correctly set the table information and call this from
        __init__ and from _OnFieldSelect so that all the information
        is up to date when the dialog opens and when a field is changed.

2003-03-10  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py (Classification): Don't use
        layer's message function directly, use the ClassChanged() method
        when then classification changes. SetField/SetFieldType/SetLayer
        must keep the information about field name and field type in
        sync when an owning layer is set or removed.

        * Thuban/Model/layer.py: Added ClassChanged() so that the 
        classification can tell the layer when its data has changed.
        (Layer.SetClassification): Accepts None as an arguement to 
        remove the current classification and correctly handles
        adding a new classification.

        * Thuban/Model/load.py: Comment out print statement

        * test/test_classification.py, test/test_save.py: New and
        improved tests.

2003-03-07  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: Implemented __copy__ and
        __deepcopy__ for ClassGroup* and ClassGroupProperites so
        they can easily be copied by the classifier dialog.
        (ClassGroupProperites.__init__): The default line color should
        have been Color.Black.

        * Thuban/UI/classifier.py: Setting and Getting table values now
        uses a consistent set of functions.
        (Classifier): Now non-modal. Has field type label which changes
        as the field changes. Keep track of buttons in a list so that
        we can enable/disable the buttons when the None field is selected.
        (SelectPropertiesDialog): Add buttons to make the colors transparent.

        * Thuban/UI/dialogs.py (NonModalDialog.Shutdown): New method which
        does what OnClose did, but can be called by the application to
        close a window. Needed when a session changes, and we have to
        close the classifier windows.

        * Thuban/UI/mainwindow.py (MainWindow.prepare_new_session):
        Shuts down open dialogs. Used when a new session is created
        or a session is opened.
        (MainWindow.SaveSession): Should only call application.SaveSession()
        if we don't call SaveSessionAs first.
        (MainWindow.Classify): Allow different classifier dialogs for
        different layers.

        * Thuban/UI/tree.py (SessionTreeView): Remove OnClose and let
        the parent class handle it. Add Shutdown() to unsubscibe from
        event notification and call the parent Shutdown(). This was
        necessary so the application can close the tree window.

2003-03-06  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py: Minor documentation changes,
        Addition of __eq__ and __ne__ methods.
        (Classification.SetLayer): prevent recursion between this method
        and Layer.SetClassification().

        * Thuban/Model/color.py: Addition of __eq__ and __ne__ methods.

        * Thuban/Model/layer.py (SetClassification): prevent recursion 
        between this method and Classification.SetLayer().

        * test/test_classification.py, test/test_load.py,
        test/test_session.py: Fixed and added tests for the classification
        classes.

2003-03-06  Bernhard Herzog  <[email protected]>

        * Thuban/UI/classifier.py (ClassGrid.__init__)
        (ClassGrid.CreateTable): Move the SetSelectionMode call to
        CreateTable because otherwise it triggers an assertion in
        wxPython/wxGTK 2.4.

2003-03-05  Jonathan Coles   <[email protected]>

        * Thuban/common.py: Move FIELDTYPE constants back to table.py.

        * Thuban/Model/load.py: import FIELDTYPE constants from table.

        * Thuban/UI/classifier.py: import FIELDTYPE constants from table.

        * Thuban/Model/table.py: Put FIELDTYPE constants back.

2003-03-05  Jonathan Coles   <[email protected]>

        * Thuban/UI/classifier.py: Added class documentation.
        Fixed RTbug #1713, #1714. Added Move[Up|Down] buttons.
        Store just the groups in the table and generate the other
        column information when it is requested. Add "None" field
        to pull-down to select no classification.

        * Thuban/common.py: Moved FIELDTYPE constants from table.py 
        (Str2Num): Only catch ValueError exceptions.

        * Thuban/Model/classification.py: Class documentation. Renaming
        of methods with Stroke to Line. Groups are stored in a single
        list with the default as the first element. Groups are searched
        in the order they appear in the list.

        * Thuban/Model/color.py: Documentation.

        * Thuban/Model/layer.py (Layer): Add GetFieldType to retreive
        the kind of data represented by a field.

        * Thuban/Model/load.py (ProcessSession): Use proper string
        conversion function; fixes RTbug #1713.

        * Thuban/Model/save.py (Saver): Store field type information.

        * Thuban/Model/table.py: Put FIELDTYPE constants in common.py.
        (Table): Add field_info_by_name() to retrieve field information
        by specifying the field name, not the number.

        * Thuban/UI/mainwindow.py: Function name changes.

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Only
        get the layer classification once. Don't try to classify 
        values when the field is None: just use the default properties.

        * Thuban/UI/view.py: Function name changes.

        * Doc/thuban.dtd: Add field_type attribute to a classification.

2003-03-04  Bernhard Herzog  <[email protected]>

        * Doc/thuban.dtd: Use correct syntax for optional attributes. Make
        the fill and stroke layer attributes optional with suitable
        default values. Add the stroke_width layer attribute. Use correct
        syntax for empty elements. Make the attribute list for labels
        refer to the label element.

2003-03-04  Bernhard Herzog  <[email protected]>

        * setup.py (thuban_build_py.build): Add a comment about distutils in
        Python 2.3 containing some of the functionality we implement in
        setup.py ourselves.

        * Thuban/UI/classifier.py (ClassGrid.__init__): Set the table
        before the selection mode. Doing it the other way round triggers
        an assertion in wxWindows.

        * Thuban/Model/save.py (escape): Fix typo in doc-string

        * Thuban/Model/classification.py: Remove unnecessary wxPython
        import

2003-03-04  Jonathan Coles   <[email protected]>

        * Thuban/Model/classification.py (ClassGroupRange.GetProperties):
        Parameter 'value' should default to None.

        * Thuban/UI/mainwindow.py: Use Layer.GetClassification() since
        the class attribute __classification is now private.

        * Thuban/UI/classifier.py (ClassGrid): Moved OnCellDClick() from
        Classifier to ClassGrid. Added support for removing selected rows,
        which including code for keeping track of when cells are selected,
        and deselected.
        (ClassTable): Support for added/removing rows. Fixed a problem
        with __ParseInput whereby it would not allow strings (only numbers)
        to be entered.
        (Classifier): Added button and supporting code for removing
        selected rows.

2003-02-27  Jonathan Coles   <[email protected]>

        * Thuban/common.py: Moved color conversion functions into
        Thuban/UI/common.py.
        (Str2Num): Now converts the float (not the string) to a long/int
        so that an exception isn't thrown.

        * Thuban/UI/common.py: Common functions used in several UI modules

        * Thuban/Model/classification.py: Changed the class hierarchy
        so that a Classification consists of Groups which return
        Properties when a value matches a Group.

        * Thuban/Model/layer.py: Fixed name resolution problem.

        * Thuban/Model/load.py: Use new Classification and Group functions.

        * Thuban/Model/save.py (Saver.write_attribs): Fixes a test case 
        failure. 
        (Saver.write_classification): Use new Classification and Group
        functions.

        * Thuban/UI/classifier.py: Changes to use new Classification and Group
        functions. Fix to create a tuple with a single value instead of
        simply returning the value.

        * Thuban/UI/renderer.py: Use new Classification and Group functions.
        Use common.py functions.

        * Thuban/UI/tree.py: Use common.py functions.
        
        * test/test_classification.py: Use new Classification and Group
        classes.

2003-02-24  Jonathan Coles   <[email protected]>

        * Thuban/common.py (Color2wxColour, wxColour2Color): Conversion
        functions from Thuban color objects to wxWindow colour objects.

        * Thuban/Model/classification.py (Classification): Renamed
        GetProperties() to GetClassData(). Used the new iterator
        in TreeInfo().
        (ClassIterator): Iterator implementation to iterate over the
        ClassData objects in a classification object.

        * Thuban/Model/save.py (Saver.write_classificaton): Uses
        the new iterator to save the classification information.

        * Thuban/UI/classifier.py (SelectPropertiesDialog): Support
        for changing the stroke and fill colors and previewing the
        changes.

        * Thuban/UI/mainwindow.py (MainWindow.OpenSession, 
        MainWindow.SaveSessionAs): Text string changes so the dialogs
        have more meaningful titles.

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Change
        Classification method name from GetProperties to GetClassData.

        * Thuban/UI/view.py (MapCanvas.find_shape_at): Use method calls
        instead of accessing now non-existent class variables.

2003-02-24  Bernhard Herzog  <[email protected]>

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Remove
        unneeded Shape() call. Rendering is substantially faster without
        it and it avoids some problems with broken shape files.

2003-02-20  Frank Koormann   <[email protected]>

        Force minimal size of identify and label dialogs. The autosizing 
        looked too ugly.

        * Thuban/UI/controls.py (RecordListCtrl): Set minimal width for columns.
        * Thuban/UI/labeldialog.py (LabelDialog.dialog_layout): 
        Set size of listctrl.
        * Thuban/UI/identifyview.py (IdentifyView.__init__): 
        Set size of dialog.

2003-02-19  Jonathan Coles   <[email protected]>

        * test/test_classification.py, test/test_layer.py, 
        test/test_load.py, test/test_map.py, test/test_session.py:
        Updated the tests to use the new functions that are in the
        respective classes.

        * Thuban/Model/classification.py (Classification):
        Uses the new ClassData* classes. Modification messages are 
        passed up to the parent layer (if it exists).
        (ClassData): New class to encapsulate the common data in each
        classification property. 
        (ClassDataDefault): Represents the Default class. data.
        (ClassDataPoint): Represents a single class. data point
        (ClassDataRange): Represents a class. range
        (ClassDataMap): Represents a class. map (unused).

        * Thuban/Model/color.py: Added Color.None to represent something
        with no color. Color.Black represents the color black.
        (NoColor): Helper class derived from Color to represent something
        with no color.

        * Thuban/Model/layer.py (Layer): Removed references to fill, stroke,
        stroke_width attributes. Made the 'classification' attribute private.
        New methods for setting/getting the classification.

        * Thuban/Model/load.py (ProcessSession): Use new methods on Layer
        to get the classifcation and use the new ClassData* classes to
        hold the classification data. Use Str2Num to convert numbers 
        properly.

        * Thuban/Model/save.py (Saver): Use new Color and Classification
        methods

        * Thuban/UI/classifier.py (ClassGrid): New class to represent a
        custom grid.
        (ClassTable): Support for editing Values and Labels and for
        changing what type (point or range) of data is stored in each
        property based on how the user enters the data.
        (Classifier): Support for saving the new classifications and
        launching the dialog to edit a property.
        (SelectPropertiesDialog): New class for editing the visual
        properties of a classification (stroke color, width, and fill color) 
        (ClassPreviewer): Took the Draw method from ClassRenderer and
        made most of it into this new class. Intend to use this class in 
        the SelectPropertiesDialog for previewing changes.

        * Thuban/UI/renderer.py: Use new Color and Classification methods.

        * Thuban/UI/tree.py: Formatting changes.

        * Doc/thuban.dtd: Add 'label' element

        * Thuban/common.py: New. Contains common routines used throughout
        the code. 
        (Str2Num): Takes a string and converts it to the "best" type of
        number.

2003-02-14  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py (MapCanvas.OnLeftUp): Make sure that the
        dragging flag is always set to 0 even when the tool implementation
        raises an exception

2003-02-11  Bernhard Herzog  <[email protected]>

        * Thuban/UI/application.py (ThubanApplication.splash_screen): New
        method to create a splash screen.
        (ThubanApplication.ShowMainWindow): New. Show the main window.
        Needed so the splash screen can display the mainwindow
        (ThubanApplication.OnInit): Call the
        new splash_screen method to determine whether the application
        should display a splash screen. If it displays a splash screen do
        not immediately show the main window.

2003-02-11  Jonathan Coles  <[email protected]>

        * Thuban/Model/classification.py: Added import line to fix
        feature conflicts between running on python2.2 and python2.1.

        * Thuban/UI/classifier.py (ClassTable): Didn't need to hang
        onto the clinfo parameter, so removed the deepcopy().

2003-02-10  Jonathan Coles  <[email protected]>

        * Thuban/Model/save.py (Saver.open_element, Saver.close_element):
        Added element_open variable to track opening and closing of tags
        so that tags that don't span more than one line are closed with
        /> instead of </tag_name>. Use the GetDefault*() methods of
        the Classification class.

        * Thuban/Model/classification.py (Classificaton): Added set and
        get methods for the default data. The class also takes a layer
        reference so that modification messages can be sent. Fixed the
        methods to use the new ClassData class.
        (ClassData): New class to encapsulate the classification data

        * Thuban/Model/layer.py (Layer): Remove the
        Set[Fill|Stroke|StrokeWidth]() methods. Code should call the
        SetDefault*() methods on the layer's classification object.
        (Layer.__init__): Use the new SetDefault*() methods in the
        Classification class.

        * Thuban/Model/load.py (ProcessSession): Use the new ClassData
        object instead of a dictionary.

        * Thuban/UI/classifier.py (ClassRenderer): New class to
        draw the classifications in the dialog box's table.
        (Classifier): Modified to use the ClassRenderer class.

        * Thuban/UI/mainwindow.py (MainWindow): Use the SetDefault*()
        methods of the Classification class.

        * Thuban/UI/renderer.py (MapRenderer): Use the Get*() methods
        of the ClassData class.

        * test/test_classification.py, test/test_layer.py,
        test/test_map.py, test/test_session.py: Fix the tests to work
        with the above code changes.

2003-02-03  Jonathan Coles  <[email protected]>

        * Thuban/Model/classification.py (Classification): Added getNull()
        to return the NullData reference

        * Thuban/Model/layer.py (Layer.SetFill, Layer.SetStroke,
        Layer.SetStrokeWidth): Modified these functions to change the
        null data in the classification rather than keep these values
        directly in the Layer class. Menu options to change these values
        work again.

2003-01-28  Jonathan Coles  <[email protected]>

        * Thuban/UI/classifier.py (Classifier): Resolved merging conflicts.
        Fixed crashing problem on some systems. Dialog box shows
        classification data.

        * Thuban/UI/tree.py (SessionTreeCtrl.add_items): Handle drawing
        Colors in the tree view.

        * Thuban/Model/layer.py (Layer.TreeInfo): Added a call to build
        the tree info for classifications. Commented out unnecessary lines.

        * Thuban/Model/classification.py (Classification.TreeInfo): New
        function to add information about the classification into the
        tree view.

2003-01-27  Jan-Oliver Wagner <[email protected]>

        * Thuban/__init__.py (_): New.

        * Thuban/Model/classification.py, Thuban/Model/extension.py,
        Thuban/Model/layer.py, Thuban/Model/load.py, Thuban/Model/map.py,
        Thuban/Model/session.py, Thuban/UI/application.py,
        Thuban/UI/classifier.py, Thuban/UI/context.py, Thuban/UI/controls.py,
        Thuban/UI/identifyview.py, Thuban/UI/labeldialog.py,
        Thuban/UI/mainwindow.py, Thuban/UI/menu.py, Thuban/UI/proj4dialog.py,
        Thuban/UI/renderer.py, Thuban/UI/tree.py, Thuban/Lib/connector.py,
        Thuban/Lib/fileutil.py: Replace user string by _() for i18n.

2003-01-27  Jonathan Coles  <[email protected]>

        * Thuban/Model/layer.py: Classification initialization calls.

        * Thuban/Model/classification.py: Created class to encapsulate
        a layer classification. Supports specific data points and
        ranges.

        * Thuban/Model/load.py: Added support for loading classification
        information.

        * Thuban/Model/save.py: Added support for saving classification
        information.

        * Thuban/UI/classifier.py: Initial class for a dialog box for
        specifying classification information.

        * Thuban/UI/mainwindows.py: Support for opening the classifier
        dialog.

        * Thuban/UI/renderer.py: Support for drawing a layer with the
        classification information.

        * Data/iceland_sample_class.thuban: iceland_sample with
        classification data.

        * test/test_classification: Tests for the Classification class.

2002-12-09  Bernhard Herzog  <[email protected]>

        * test/test_command.py: New. Tests for the command classes.

        * Thuban/UI/command.py (ToolCommand): New class for tool commands.
        (Command.IsTool): New method to distinguish between command
        switching tools and other commands.

        * Thuban/UI/view.py (MapCanvas.SelectTool): New method to select
        the tool to avoid direct assignments to instance variables
        (MapCanvas.ZoomInTool, MapCanvas.ZoomOutTool, MapCanvas.PanTool)
        (MapCanvas.IdentifyTool, MapCanvas.LabelTool): Use SelectTool to
        change the tool

        * Thuban/UI/mainwindow.py (MainWindow.update_command_ui): If an
        active tool's command turns insensitive, disable the tool.
        (_tool_command): Use the new ToolCommand class

        * Examples/simple_extensions/simple_tool.py (simple_tool): Use the
        SelectTool method to change the tool
        (iconfile): Use the ToolCommand class

2002-12-03  Bernhard Herzog  <[email protected]>

        * Thuban/UI/tree.py (SessionTreeCtrl.normalize_selection): Handle
        the case of selected items that are not children of Layers or Maps
        properly. Previously this bug would trigger an assertion in
        wxWindows.

2002-11-06  Frank Koormann  <[email protected]>

        * Thuban/UI/mainwindow.py: Altered the order of tools in the
        toolbar: First now are all navigation tools (Zoom In/Out, Pan,
        Full Extent).

2002-10-23  Bernhard Herzog  <[email protected]>

        * setup.py (setup call): version now 0.1.3

        * MANIFEST.in: Add the files in test/

        * test/README: Add note about tests requiring the iceland data

        * Thuban/UI/mainwindow.py (MainWindow.About): Add 2002 to
        copyright notice.

2002-10-18  Bernhard Herzog  <[email protected]>

        * test/test_map.py
        (TestMapWithContents.test_projected_bounding_box): Use an explicit
        epsilon.

        * test/support.py (FloatComparisonMixin.assertFloatEqual)
        (FloatComparisonMixin.assertFloatSeqEqual): give a more useful
        message if the assertion fails and don't return the return value
        of self.assert_. In assertFloatSeqEqual the return meant that not
        all items of the sequence were compared.

2002-09-20  Bernhard Herzog  <[email protected]>

        * test/test_fileutil.py: New. Test cases for Thuban.Lib.fileutil

        * Thuban/Lib/fileutil.py: Fixup some whitespace and typos

        * test/test_map.py (TestMapWithContents.test_tree_info): Create
        the string with the bounding box on the fly because of platform
        differences in the way %g is handled.

        * test/test_layer.py (TestLayer.test_empty_layer): Create an empty
        DBFfile too because Thuban layers can't yet cope missing DBF
        files.

2002-09-20  Bernhard Herzog  <[email protected]>

        * test/test_menu.py: Use initthuban instead of
        add_thuban_dir_to_path to initialize Thuban.

        * test/support.py (FloatComparisonMixin.assertFloatEqual): New.
        Mixin class for float comparisons
        (SubscriberMixin): New. Mixin class to test messages sent through
        the Connector class

        * test/README: Fix a typo and add the -v flag to the command for
        individual tests

        * test/test_session.py: New. Test cases for Thuban.Model.session

        * test/test_proj.py: New. Test cases for Thuban.Model.proj

        * test/test_map.py: New. Test cases for Thuban.Model.map

        * test/test_layer.py: New. Test cases for Thuban.Model.layer

        * test/test_label.py: New. Test cases for Thuban.Model.label

        * test/test_connector.py: New. Test cases for Thuban.Lib.connector

        * test/test_color.py: New. Test cases for Thuban.Model.color

        * test/test_base.py: New. Test cases for Thuban.Model.base

2002-09-13  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py (Session.forwarded_channels): Forward
        the CHANGED channel too.

        * Thuban/Model/map.py (Map.forwarded_channels): Forward the
        CHANGED channel too.
        (Map.__init__): Call the Modifiable constructor as well.

        * Thuban/Model/base.py (Modifiable.UnsetModified): Issue a CHANGED
        event if the modified flag changes.
        (Modifiable.changed): Tweak the doc-string.

        * Thuban/UI/mainwindow.py (MainWindow.view_position_changed)
        (MainWindow.set_position_text): Put the code that puts the text
        with the mouse position into the status bar into the new method
        set_position_text so that it can overwritten in derived classes.

2002-09-12  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.RunMessageBox): Center the
        message box on the main window.

2002-09-11  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py: Underline the 'x' in "Exit" instead of
        the 'E' because it's less likely to interfere with other menu
        entries.
        (MainWindow.build_menu): remove an incorrect comment.

2002-09-10  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.Map): New.
        (_tool_command): Add sensitive parameter
        (_has_visible_map): Sensitivity callback to tools and other
        commands that require a visible map. Use it in map_zoom_in_tool,
        map_zoom_out_tool, map_pan_tool, map_identify_tool, map_label_tool
        and map_full_extent

2002-09-06  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.OnClose): Unsubscribe
        VIEW_POSITION

2002-09-04  Frank Koormann  <[email protected]>

        * Resources/Bitmaps/fullextent.xpm: Updated Icon (removed "potatoe")

2002-09-02  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py: Get rid of the idle redraw. This is done by
        wxWindows already and our implementation doesn't work correctly
        with wxGTK 2.3:
        (MapCanvas.__init__): Remove the instance variable
        (MapCanvas.OnPaint): Always call do_redraw when there's a map to
        be drawin
        (MapCanvas.OnIdle): Removed.

        * Thuban/UI/view.py (MapCanvas.unprojected_rect_around_point): Add
        a parameter to determine the size of the rectangle.
        (MapCanvas.find_shape_at): Create the box around the point on a
        layer by layer basis and make the size depend on the shape type.
        This solves a problem with the selection of point shapes at the
        border of the layer's bounding box

2002-08-30  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.CanRemoveLayer): New method
        for the sensitivity  of remove layer.
        (_can_remove_layer): New. Sensitivity callback for remove layer
        (Command layer_remove): Use _can_remove_layer

        * Thuban/Model/map.py (Map.CanRemoveLayer): New method to
        determine whether a given layer can be deleted.

        * Thuban/UI/view.py (MapCanvas.__init__, MapCanvas.OnPaint)
        (MapCanvas.do_redraw): Get rid of the unused update_region
        instance variable

        * Thuban/UI/view.py: Add/update some doc-strings.

        * test/: new subdirectory with a bunch of unit tests.

        * test/README, test/test_table.py, test/test_save.py,
        test/test_menu.py, test/test_load.py: Initial set of tests and
        brief instructions on how to run them

2002-08-29  Bernhard Herzog  <[email protected]>

        * Thuban/UI/renderer.py (ScreenRenderer.draw_shape_layer): Handle
        arcs with multiple parts.

        * Thuban/UI/view.py (ZoomInTool.MouseUp, ZoomOutTool.MouseUp):
        Handle degenrate rectangles.

        * Thuban/Model/table.py: Make writing records work correctly:
        (Table.__init__): Keep track of whether the DBF is open for
        writing
        (Table.write_record): Open the DBF file for writing when necessary

2002-08-27  Bernhard Herzog  <[email protected]>

        * Thuban/Model/table.py (Table.write_record, Table.__init__): Open
        dbf files only for reading by default. Use a new writable dbf
        object for writing.

2002-08-26  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py: Refactor the context creation:
        (MainWindow.Context): New method to return a context
        (MainWindow.invoke_command, MainWindow.update_command_ui): Use the
        new method

        * Thuban/UI/tableview.py (TableGrid, LayerTableGrid): Split the
        layer table specific code from TableGrid into LayerTableGrid
        (TableFrame, LayerTableFrame): Split the layer table specific code
        from TableFrame into LayerTableFrame
        (LayerTableGrid.select_shape): Remove a debug print

        * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Use the
        LayerTableFrame

2002-08-23  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.__init__): Make sure we have an
        absolute filename.

2002-08-22  Bernhard Herzog  <[email protected]>

        * Thuban/Model/table.py (Table.write_record): New method to write
        records.
        (Table.__init__): Open the DBF file for writing too.

        * Thuban/UI/controls.py (RecordTable.SetValue): Write the value
        into the underlying table.

        * extensions/shapelib/shapefil.h (DBFCommit),
        extensions/shapelib/dbfopen.c (DBFCommit): New API function to
        commit any changes made to the DBF file.

        * Thuban/UI/mainwindow.py (make_check_current_tool)
        (_tool_command): Put the code that generates the "checked"
        callback into a separate function so that we can reuse it
        elsewhere

        * Thuban/Model/save.py (Saver): New class to handle serializing a
        session into an XML file. The main reason to introduce a class is
        that applications built on Thuban can derive from it so that they
        can save additional information in a session file.
        (save_session): Delegate almost all the work to the Saver class.
        Rename the filename argument to file because it may be a file like
        object now.

        * Thuban/Model/load.py: Get rid of the Python 1.5.2 compatibility
        code. Remove the little test code which would be executed when the
        module is run as a script which didn't work anymore since it can't
        import the other Thuban modules.
        (ProcessSession, load_session): Refactor the ProcessSession to
        have one method for each element start and end tag so that derived
        classes can easily override the processing of individual tags.
        Also, always parse with namespaces enabled because applications
        built on top of Thuban will likely use namespaces if they extend
        the session file format.

2002-08-21  Bernhard Herzog  <[email protected]>

        * setup.py (ThubanInstall.run): Don't repr install_lib_orig
        because thubaninit_contents will do it for us.

2002-08-16  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/mainwindow.py: menu item 'show session tree' now disable if
        tree window already open

2002-08-15  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.Destroy): Call the unboundd method
        with self.

        * Thuban/UI/view.py (MapCanvas.OnLeftUp): Only release the mouse
        when we have actually captured it.

        * Thuban/Model/layer.py (Layer.Destroy): New. Explicitly close the
        shapefile and destroy the table.

        * Thuban/Model/table.py (Table.Destroy): New. Close the DBF file.

2002-08-14  Bernhard Herzog  <[email protected]>

        * Thuban/UI/controls.py (RecordTable.__init__): Remove the unused
        instance variable columns
        (RecordTable.GetTypeName): row and col may be negative in some
        cases.

        * setup.py (InstallLocal.initialize_options)
        (InstallLocal.finalize_options, InstallLocal.user_options): New
        option create-init-file to build a thubaninit.py when running
        install_local
        (InstallLocal.run): Create the thubaninit.py module when requested
        (thubaninit_contents): Split the template into several parts and
        create a new function thubaninit_contents that creates the
        contents of a thubaninit module.
        (ThubanInstall.run): Use the new function to create the thubaninit
        module.

2002-07-30  Bernhard Herzog  <[email protected]>

        * Thuban/UI/application.py (ThubanApplication.OnExit): Do some
        cleanup.
        (ThubanApplication.MainLoop): Extend to automatically call OnExit.

        * Thuban/Model/session.py (Session.Destroy): Don't bypass the
        direct base class' Destroy method.

        * Thuban/Model/map.py (Map.ClearLayers): New method to delete all
        layers.
        (Map.Destroy): Destroy the label_layer as well and call the
        inherited Desatroymethod first so that no more messages are
        issued.
        (Map.RaiseLayer, Map.LowerLayer): Only issue LAYERS_CHANGED
        message if the stacking order actually has changed. Add
        doc-strings.
        (Map.BoundingBox): Correct the doc-string.
        (Map.AddLayer, Map.RemoveLayer, Map.Layers, Map.HasLayers)
        (Map.ProjectedBoundingBox, Map.SetProjection): Add doc-strings.

        * Thuban/Model/label.py (LabelLayer.ClearLabels): New to delete
        all labels.

2002-07-29  Bernhard Herzog  <[email protected]>

        * Thuban/Model/map.py (Map.subscribe_layer_channels)
        (Map.unsubscribe_layer_channels): Put the code that (un)subscribes
        to a layer's channels into separate methods.
        (Map.RemoveLayer, Map.AddLayer): Call the new methods
        (Map.Destroy): Unsubscribe from a layer's channels before
        destroying it.

        * Thuban/UI/view.py (MapCanvas.find_shape_at): Change the
        selected_layer parameter to searched_layer which is the layer to
        search in.
        (MapCanvas.SelectShapeAt): New parameter layer to restrict the
        search to that layer. Return the selected layer and shape.

        * Examples/simple_extensions/simple_tool.py (simple_tool): Fix a
        typo

2002-07-24  Bernhard Herzog  <[email protected]>

        * Thuban/UI/application.py (ThubanApplication.create_session):
        Extend the doc string.
        (ThubanApplication.subscribe_session)
        (ThubanApplication.unsubscribe_session): New methods to
        subscribe/unsubscribe to/from session channels.
        (ThubanApplication.SetSession): Call the new methods here.
        (ThubanApplication.maps_changed, ThubanApplication.set_map):
        Renamed set_map to maps_changed. Its now a subscriber for
        MAPS_CHANGED.

        * Thuban/UI/view.py (ZoomOutTool.MouseUp): Use the correct
        x-coordinate in case of simple clicks

        * Thuban/Model/base.py (Modifiable.changed): Apply the args tuple,
        don't pass it as a parameter

        * Thuban/Model/session.py (Session.RemoveMap): New

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Turn the initial
        window size into a parameter.

2002-07-23  Bernhard Herzog  <[email protected]>

        * Thuban/UI/menu.py (Menu.item_index): Also search for menus not
        just commands.

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Change the
        parameter list a bit to allow setting the window title and the
        initial message in the status bar. Update the callers.

        * Thuban/UI/application.py (ThubanApplication.OnInit)
        (ThubanApplication.CreateMainWindow): Put the mainwindow
        instantiation into a separate method so that it can be overridden
        by a subclass.

2002-07-19  Bernhard Herzog  <[email protected]>

        * Thuban/Model/session.py: Issue a CHANGED message every time
        another changed message is issued to make it easier to get
        notified of changes.
        (Session): Update the doc string
        (Session.forward): Issue changed-events as CHANGED as well.
        (Session.changed): Overwrite the inherited version to issue
        CHANGED events as well.

        * Thuban/UI/tree.py: We can now simply subscribe to the session's
        CHANGED channel to be informed of changes.
        (SessionTreeCtrl.session_channels): Not needed any longer.
        (SessionTreeCtrl.unsubscribe_all, SessionTreeCtrl.session_changed):
        Only have to (un)subscribe CHANGED

        * Thuban/Model/map.py (Map.TreeInfo): Deal better with empty maps.

        * Thuban/UI/main.py, Thuban/UI/__init__.py: Move the work-around
        for the wxPython locale bug to __init__.py so that it's
        automatically executed by anybody using UI code from Thuban.

2002-07-18  Bernhard Herzog  <[email protected]>

        * Thuban/UI/main.py (main): app no longer needs to be global

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Add application
        as parameter and store it in an instance variable
        (MainWindow.invoke_command, MainWindow.update_command_ui)
        (MainWindow.save_modified_session, MainWindow.NewSession)
        (MainWindow.OpenSession, MainWindow.SaveSession)
        (MainWindow.SaveSessionAs, MainWindow.ShowSessionTree): Use self's
        application object.

        * Thuban/UI/application.py (ThubanApplication.OnInit): Instantiate
        the main window with self.

        * Thuban/UI/context.py: New module with the context class

        * Thuban/UI/command.py (Command): Update doc string.

        * Thuban/UI/mainwindow.py (MainWindow.invoke_command,
        MainWindow.update_command_ui): Pass an instance of the context
        class to the command's methods
        (check_current_tool, call_method): Handle the new context
        implementation

        * Examples/simple_extensions/simple_tool.py (simple_tool,
        check_simple_tool): Handle the new context implementation

        * Examples/simple_extensions/simple_command.py (simple_command):
        Handle the new context implementation. Update the comments about
        the context.

        * Thuban/UI/application.py (ThubanApplication.SetSession): Add
        doc-string
        (ThubanApplication.Session): New method to return the session
        object

        * Thuban/UI/tree.py (SessionTreeCtrl.update_tree): The
        interactor's selected_layer may not be a layer of the current
        session when the tree is updated while a new session is being set.

2002-07-17  Bernhard Herzog  <[email protected]>

        * Thuban/UI/tree.py (color_string): Removed. No longer used.
        (SessionTreeCtrl.update_tree, SessionTreeCtrl.add_items): Split
        update_tree into update_tree and add_items. The tree now uses a
        more generic way to display the contents of the tree.
        (SessionTreeCtrl): Add a doc string explaining the TreeInfo method

        * Thuban/Model/layer.py (Layer.TreeInfo),
        Thuban/Model/extension.py (Extension.TreeInfo),
        Thuban/Model/map.py (Map.TreeInfo),
        Thuban/Model/session.py (Session.TreeInfo):
        Add TreeInfo methods to implement the new tree view update scheme

2002-07-16  Bernhard Herzog  <[email protected]>

        * Thuban/UI/application.py: Don't use "import from" for the
        MainWindow. It can't always be resolved.
        (ThubanApplication.OnInit): change reference to MainWindow
        accordingly.

        * Thuban/UI/menu.py (Menu.SetItems): New method to replace a menu
        completely

2002-07-10  Bernhard Herzog  <[email protected]>

        * setup.py (create_init_module): New configurable variable whose
        default depends on the platform we're running on.
        (ThubanInstall.initialize_options): Initialize
        self.create_init_module from the global create_init_module
        (ThubanInstall.user_options): indictate that the options
        create-init-module and init-module-dir have arguments.

        * setup.py: In the setup call change the version number to include
        cvs.

        * MANIFEST.in: Add the files in Examples

2002-07-09  Bernhard Herzog  <[email protected]>

        * setup.py: In the setup call, use the thuban homepage as the
        value of the url parameter.

        * Examples: New subdirectory for examples.

        * Examples/simple_extensions/simple_tool.xpm,
        Examples/simple_extensions/simple_tool.py,
        Examples/simple_extensions/simple_command.py,
        Examples/simple_extensions/README: Simple examples showing how to
        add new commands and tools.

        * setup.cfg (bdist_rpm): Add the default value for prefix and tell
        bdist_rpm that we also have an install script.
        (bdist_inno): Add 2002 to the copyright notice.

        * setup.py: Create a file in python's site-packages directory to
        make installation of Thuban as a library easier.
        (ThubanInstall.user_options): Add two new options,
        create-init-module and init-module-dir
        (ThubanInstall.expand_with_pure_python_dirs): New method to expand
        filenames for installation in the default directories.
        (ThubanInstall.select_scheme, ThubanInstall.convert_paths): Extend
        the inherited methods to capture some filenames before they're
        transformed too much by distutils.
        (ThubanInstall.run): Create the init module if requested.
        (ThubanInstall.thuban_init_filename): New method to return the
        full name of the init module.
        (ThubanInstall.get_outputs): Append the filename of the init
        module.

2002-07-08  Bernhard Herzog  <[email protected]>

        * setup.py (thuban_bdist_rpm): Extend this version of bdist_rpm to
        handle the prefix properly which means that the default for the
        installation prefix should be /usr for RPMs and /usr/local when
        doing a normal source install.
        (bdist_rpm_install_script): Script to override the default install
        commands in the specfile generated by the bdist_rpm command.
        (thuban_bdist_rpm.user_options): Add a prefix option
        (thuban_bdist_rpm.initialize_options): Init the prefix option.
        Create the script files for the spec files as empty files here
        (thuban_bdist_rpm._make_spec_file): Override the inherited method
        to fill the script files with content.

        * Thuban/Model/save.py (relative_filename): Wrapper around
        Thuban.Lib.fileutil.relative_filename that accepts an empty dir
        argument. save_session now automatically uses this version,
        solving a problem when saving to a relative filename.

        * setup.py: In the setup call, make sure that the library
        directories are under $prefix/lib not directly under $prefix.

2002-06-20  Jan-Oliver Wagner <[email protected]>

        * Thuban/Model/extension.py: new module to handle extension objects.
        * Thuban/Model/messages.py: new messages for extensions.
        * Thuban/Model/session.py (Session.Extensions, Session.HasExtensions,
        Session.AddExtension): new for handling extensions.
        Also some other minor changes to round up extension handling.
        * Thuban/UI/tree.py (SessionTreeCrtl:update_tree): Added visualization
        of Extension titles and title and names of its objects.

2002-05-29  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.bind_command_events): Bind
        the events for a command.
        (MainWindow.add_toolbar_command, MainWindow.add_menu_command):
        Call bind_command_events to bind the events. add_toolbar_command
        can now bind events too so that it's possible to have commands
        that are only available through the toolbar.
        (MainWindow.init_ids): New instance variable events_bound to keep
        track of for which commands events have been bound.

2002-05-28  Bernhard Herzog  <[email protected]>

        * Thuban/UI/menu.py: New module to build and manage menus.

        * Thuban/UI/mainwindow.py: Remove some unused imports.
        (MainWindow.__init__, main_menu): move the definition of the main
        menu from __init__ to the Menu instance main_menu.
        (MainWindow.build_menu_bar, MainWindow.build_menu): New methods to
        build the menu bar and sub-menus from a menu description.

        * Thuban/UI/application.py (ThubanApplication.OnInit): Read the
        startup file
        (ThubanApplication.read_startup_files): New method to run
        ~/.thuban/thubanstart.py

        * Thuban/UI/mainwindow.py (MainWindow.__init__, main_toolbar):
        Move the toolbar definition to the Menu instance main_toolbar.
        (MainWindow.build_toolbar): New method to build the toolbar
        similar to the build_menu methods

2002-05-23  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Fix spelling of
        layer_outline_color. Fix it in the definition of the command too.

        * Thuban/UI/command.py (Command): Fix typo in doc string

2002-05-22  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.RunMessageBox): Fix a typo
        in the docstring

2002-05-15  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.open_shapefile): Set bbox to None
        when the shapefile is empty.
        (Layer.BoundingBox, Layer.LatLongBoundingBox): Both methods may
        now return None for empty shapefiles. Update doc-strings.

        * Thuban/Model/map.py (Map.BoundingBox): Add doc-string. Deal with
        the layer's bbox being None.

        * Thuban/UI/tree.py (SessionTreeCtrl.update_tree): Deal with the
        layer's bbox being None.

        * Thuban/UI/view.py (MapCanvas.shape_selected): Only redraw when
        necessary.
        (MapCanvas.__init__): New instance variables, last_selected_layer
        and last_selected_shape to determine how the selection has
        changed.

        * Thuban/UI/tableview.py (TableGrid.__init__): Do not call
        AutoSizeColumns because it will cause a traversal of the entire
        table which for large .dbf files will take a very long time.

2002-05-14  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.open_shapefile): Choose a better
        maximum depth for the tree than shapelib does by default.

2002-05-10  Bernhard Herzog  <[email protected]>

        * setup.py (py_modules): The shptree modules doesn't have a
        wrapper, so don't include it in the py_modules

2002-05-08  Bernhard Herzog  <[email protected]>

        * extensions/shapelib/shptree.c (compare_ints): Make arguments
        const void * as in the qsort prototype
        (SHPTreeFindLikelyShapes): Remove some unused variables.

        * Thuban/UI/view.py (PanTool.MouseMove): Use the bitmap the view
        maintains to redraw the window during a drag.
        (MapCanvas.unprojected_rect_around_point): New method to determine
        a small region around a point for hit-testing.
        (MapCanvas.find_shape_at): Only test the shapes in a small region
        around the point.

        * setup.py: Increment the version to 0.1.2

        * Thuban/UI/tree.py (SessionTreeCtrl.unsubscribe_all): Remove a
        debug print and set session to None after unsubscribing

2002-05-07  Bernhard Herzog  <[email protected]>

        * Data/iceland_sample.session, Data/iceland_sample.thuban: Rename
        the file to have a .thuban extension.

        * Thuban/UI/tree.py (session_channels): New class constant with
        all the session channels to subscribe to to update the tree
        (SessionTreeCtrl.session_changed): Remember the session so that we
        can unsubscribe properly. Use the new class constant to
        unsubscribe from the old session and subscribe to the new one.
        (SessionTreeCtrl.unsubscribe_all): New method to unsubscribe all
        subscriptions of the SessionTreeCtrl.
        (SessionTreeView.OnClose): Call the tree's unsubscribe_all method.

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Add the "Show
        Session Tree" command to the file menu.

        * Thuban/UI/view.py (MapCanvas.do_redraw): Pass the entire bitmap
        as update_region to the renderer.

        * Thuban/UI/renderer.py
        (ScreenRenderer.layer_ids, ScreenRenderer.draw_shape_layer): The
        update box is now directly a tuple, not a wxRect anymore.

        * Thuban/Model/layer.py (Layer.ShapesInRegion): Remove some debug
        prints.

2002-05-07  Bernhard Herzog  <[email protected]>

        * setup.py: Add the shptree extension module. See
        extensions/pyshapelib/ChangeLog for more details.

        * extensions/shapelib/shpopen.c, extensions/shapelib/shapefil.h,
        extensions/shapelib/dbfopen.c: Really update to the versions of
        shapelib 1.2.9. For some reason it wasn't really done on
        2002-04-11.

        * extensions/shapelib/shptree.c: Modified version of shptree.c of
        shapelib 1.2.9. The only real difference is the use of qsort
        instead of a bubble sort implementation

        * Thuban/Model/layer.py (Layer.__init__): New instance variable
        shapetree to hold the shapelib quadtree for the shapefile
        (Layer.open_shapefile): Create the quad tree.
        (Layer.ShapesInRegion): New method to return the ids of shapes in
        a given region using the quad tree.

        * extensions/thuban/wxproj.cpp (project_points): Fix some typos in
        comment
        (draw_polygon_shape): Accept both arcs and polygons.
        (initwxproj): Use the new PYSHAPELIB_IMPORT_API macro to import
        the api.

        * Thuban/UI/renderer.py (MapRenderer.layer_ids): New method to
        return the shape ids to be rendered in a given layer.
        (MapRenderer.draw_shape_layer): Call layer_ids to get the list of
        ids. Use draw_polygon_shape to draw arc shapes as well.
        (ScreenRenderer.RenderMap): New parameter for the rectangle that
        has to be updated
        (ScreenRenderer.layer_ids): Make use of the layer's quadtree by
        calling it's ShapesInRegion method.

        * Thuban/UI/view.py (MapCanvas.__init__): New instance variable
        update_region for the update region.
        (MapCanvas.OnPaint): Maintain the update region
        (MapCanvas.do_redraw): Pass the bounding box of the update_region
        to the renderer when drawing the bitmap. Reset the update_region.

2002-05-03  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.SaveSessionAs,
        MainWindow.OpenSession): Change the file extension of the session
        files to .thuban

        * Thuban/Model/session.py (Session.AddMap, forwarded_channels):
        Move the map channels to be forwarded by the session into the
        class constant with forwarded_channels. Also add
        LAYER_PROJECTION_CHANGED and LAYER_VISIBILITY_CHANGED to
        forwarded_channels

        * Thuban/Model/base.py (Modifiable.changed): Fix doc-string (a
        typo and some rewording).

2002-05-02  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py: Keep the temporary bitmap used during drawing
        around to speed up most redraws:
        (MapCanvas.__init__): New instance variable bitmap which holds the
        bitmap
        (MapCanvas.do_redraw): Redraw self.bitmap if necessary. Use
        self.bitmap to draw.
        (MapCanvas.full_redraw): New method to force a full redraw
        including the bitmap
        (MapCanvas.SetMap): Subscribe full_redraw instead of redraw to
        make sure the bitmap is redrawn.
        (MapCanvas.projection_changed, MapCanvas.set_view_transform,
        MapCanvas.shape_selected): Call full_redraw instead of readraw to
        make sure the bitmap is redrawn.
        (MapCanvas.OnSize): New method to handle size events so that the
        bitmap can be redrawn.

2002-04-29  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Subscribe to the
        canvas' VIEW_POSITION event
        (MainWindow.view_position_changed): Handler for VIEW_POSITION.
        Update the text in the status-bar accordingly.

        * Thuban/UI/view.py (MapCanvas): Derive from Publisher as well
        (MapCanvas.__del__): Implement because Publisher.__del__ has to be
        called.
        (MapCanvas.__init__): Bind EVT_LEAVE_WINDOW too. Initialize
        current_position
        (MapCanvas.set_current_position): New method to set
        current_position. Issue a VIEW_POSITION event
        (MapCanvas.CurrentPosition): New public method to return the value
        of current_position. Should be called when the VIEW_POSITION event
        is processed.
        (MapCanvas.OnLeftDown, MapCanvas.OnLeftUp, MapCanvas.OnMotion):
        Update the position.
        (MapCanvas.OnLeaveWindow): Set the position to None.

        * Thuban/UI/messages.py (VIEW_POSITION): New message for the
        position in the statusbar

2002-04-26  Frank Koormann <[email protected]>

        * Thuban/UI/mainwindow.py: AddLayer, Dialog title s/session/data

2002-04-24  Frank Koormann <[email protected]>

        * Resources/Bitmaps/identify.xpm: shadow added

        * Resources/Bitmaps/fullextent.xpm: new

2002-04-22  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/tree.py (update_tree): added test for None on map bounding
        box

2002-04-21  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/proj4dialog.py (UTMProposeZoneDialog): new

        * Thuban/UI/tree.py (update_tree): added added map extent

        * Thuban/UI/mainwindow.py (_method_command): extended by parameter
        icon; added map_full_extend as tool

2002-04-19  Jan-Oliver Wagner <[email protected]>

        * Thuban/UI/mainwindow.py (SaveSession): launch save as dialog for
        saving _new_ sessions

        * Thuban/Model/session.py (create_empty_session): new session
        don't have a filename (set to None)

        * Thuban/UI/tree.py (update_tree): added filename and modified flag

        * Thuban/Model/load.py (ProcessSession): convert projection
        parameters from unicode to regular string

        * Data/iceland_sample.session: Added UTM Zone 26 projection.

2002-04-11  Bernhard Herzog  <[email protected]>

        * extensions/shapelib/shapefil.h, extensions/shapelib/shpopen.c,
        extensions/shapelib/dbfopen.c: Update to the versions of shapelib
        1.2.9

        * setup.py (Lib.wxproj extension): Don't link shpopen.c and put
        the pyshapelib directoy into the list of include dirs, so that
        pyshapelib_api.h can be found.

        * extensions/thuban/wxproj.cpp (pyshapelib_api): New variable that
        holds the pyshapelib C-API
        (draw_polygon_shape, point_in_polygon_shape, shape_centroid): Use
        pyshapelib_api to access the shapelib functions.
        (initwxproj): Import the c_api from the shapelib module and
        initialize pyshapelib_api.

2002-04-04  Bernhard Herzog  <[email protected]>

        * setup.py (thuban_bdist_rpm.initialize_options): Use
        initialize_options to create the scripts for the rpm.

        * extensions/pyprojection/setup.py (PROJ4_PREFIX): Just use /

2002-04-03  Bernhard Herzog  <[email protected]>

        * setup.py: Increment version to 0.1.1

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Move the "Add
        Layer" and "Remove Layer" commands from the layer menu to the map
        menu

2002-02-15  Bernhard Herzog  <[email protected]>

        * Thuban/Model/layer.py (Layer.Shape): list append only takes one
        argument (python <= 1.5.2 erroneously accepted multiuple
        arguments)

2002-02-04  Bernhard Herzog  <[email protected]>

        * Thuban/UI/identifyview.py (IdentifyGridCtrl): New class to use a
        RecordGrid in the identifyview.
        (IdentifyView.__init__): Use IdentifyGridCtrl instead of
        IdentifyListCtrl. The grid allows editing of the values.

        * Thuban/UI/controls.py (RecordTable, RecordGridCtrl): New classes
        implementing a grid for a single row of a thuban table.

        * Thuban/UI/view.py (MapCanvas.SelectShapeAt): Search through all
        layers by default. Easier to use than the previous default of only
        searching through the select layer which meant that if no layer
        was selected, you couldn't select a shape.

        * Thuban/UI/tableview.py (TableGrid.__init__): Fix typo

        * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Honour the
        stroke_width attribute

        * Thuban/Model/save.py (save_session): Write the new stroke_width
        attribute

        * Thuban/Model/load.py (ProcessSession.startElement): Read the
        stroke_width attribute

        * Thuban/Model/layer.py (Layer.__init__): New parameter and
        instance variable stroke_width
        (Layer.SetStrokeWidth): Set the stroke_width.

2002-02-01  Bernhard Herzog  <[email protected]>

        * extensions/thuban/wxproj.cpp (project_points): Fix two
        off-by-one errors in the last loop that joins the various parts
        together.

2002-01-14  Bernhard Herzog  <[email protected]>

        * setup.py (data_dist.make_distribution): Fix some typos

2001-09-18  Bernhard Herzog  <[email protected]>

        * README: Slight tweaking in preparation for the 0.1 release

        * setup.cfg: Add section for sdist to create both tgz and zip
        archives

        * setup.py: increase version number to 0.1
        (data_dist): New command class for data distribution

2001-09-14  Bernhard Herzog  <[email protected]>

        * Thuban/UI/identifyview.py (IdentifyListCtrl.selected_shape):
        Handle the case of no layer (i.e. layer is None) properly.

        * Thuban/UI/proj4dialog.py (UTMDialog.__init__, Proj4Dialog.__init__):
        Set the initial selection of the combo boxes to reflect the
        projection we're starting with in a way that works on windows,
        too.

        * Thuban/Lib/connector.py (Connector.print_connections): Print the
        puiblisher's ids in hex to make it easier to compare them to the
        standard repr of python methods

        * Thuban/Model/map.py (Map.Destroy): Unsubscribe the label_layer
        messages

2001-09-13  Bernhard Herzog  <[email protected]>

        * Thuban/UI/tree.py (SessionTreeCtrl.OnSelChanged): Make sure to
        deselect the layer if no layer is selected

        * Thuban/UI/view.py (MapCanvas.OnPaint): Only delay drawing to
        idle time when there actually is something to draw. If there's
        nothing to draw simply clear the window
        (MapCanvas.do_redraw): Call dc.EndDrawing and add some comments.
        (MapCanvas.SetMap): force a redraw in all cases because
        FitMapToWindow doesn't always do it.
        (MapCanvas.ZoomFactor): Add an optional parameter, center, to
        specify the point to move into the center of the window
        (ZoomOutTool.MouseUp, ZoomInTool.MouseUp): If the mouse wasn't
        dragged, zoon in/out by a factor of 2
        (MapCanvas.find_shape_at): Iterate backwards (i.e. with decreasing
        index, i.e. reversed drawing order) so that objects appearing to
        be in from of others are selected first. This is probably mostly
        relevant for point shapes where the symbols used may overlap

        * Thuban/Model/session.py (create_empty_session): Unset the
        modified bit before returning it

        * Thuban/UI/mainwindow.py (MainWindow.NewSession): Use
        create_empty_session session to create the new, empty session.

        * Thuban/UI/mainwindow.py (MainWindow.__init__): Set the size of
        the tool bitmaps.
        (MainWindow.OnClose, MainWindow.save_modified_session): Separate
        the code that asks whether the session should be saved into the
        new method save_modified_session.
        (MainWindow.OpenSession, MainWindow.NewSession): Use the new
        method to save modified session here too.

2001-09-11  Bernhard Herzog  <[email protected]>

        * setup.py (InnoIconItem): fix typo

        (thuban_bdist_inno.run):
        (bdist_inno.run): Move the decision not to create symlinks on
        non-nt platforms to thuban_bdist_inno and do it unconditinally
        since we never want to create the symlinks here

2001-09-10  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.IdentifyTool): Popup the
        identify view immediately

        * Thuban/UI/controls.py: New file with two classes RecordListCtrl
        and SelectableRecordListCtrl that implement the code shared by the
        identify view and the label dialog

        * Thuban/UI/identifyview.py (IdentifyListCtrl): Derive from the
        new class RecordListCtrl

        * Thuban/UI/labeldialog.py (LabelDialog.OnOK): Check whether the
        return value of GetValue is None instead of using it as a boolean
        directly so that Zero numbers are handled properly.
        (LabelListCtrl): Derive from the new class
        SelectableRecordListCtrl

        * Thuban/UI/proj4dialog.py (Proj4Dialog.__init__):
        (Proj4Dialog.dialogLayout): Make the window resizable and set the
        size of the text control explicitly to make the sizers work on
        both Windows and X.

2001-09-07  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py (MapCanvas.find_shape_at):Add a new parameter
        that can limit the search to the currently selected layer.
        (MapCanvas.SelectShapeAt): Make sure that the currently selected
        layer stays selected even when no shape is found
        (MapCanvas.FitRectToWindow): If the rect has zero with or zero
        height do nothing (avoids zero division errors)

2001-09-06  Bernhard Herzog  <[email protected]>

        * Thuban/UI/tree.py (SessionTreeCtrl, SessionTreeView.__init__):
        Correct the spelling of SessionTreeCtrl. dabbrev is too damn
        convenient :-)
        (SessionTreeCtrl.__init__, SessionTreeCtrl.update_tree): Introduce
        a new instvar layer_to_item to map layers to tree items
        (SessionTreeCtrl.layer_selected): Select the appropriate tree item
        to match the current selection in the interactor

        * Thuban/UI/interactor.py (Interactor.SelectedLayer):
        (Interactor.HasSelectedLayer): New methods to query the current
        selection

        * Thuban/UI/mainwindow.py (MainWindow.current_layer):
        (MainWindow.has_selected_layer): Simply call the appropriate
        interactor method

        * Thuban/UI/mainwindow.py (MainWindow.__init__):
        (MainWindow.LayerShowTable):
        (MainWindow.identify_view_on_demand): Store the interactor in an
        instvar and use that reference instead of going through main.app

        * Thuban/UI/mainwindow.py (MainWindow.ShowSessionTree):
        * Thuban/UI/application.py (ThubanApplication.OnInit):
        * Thuban/UI/main.py (main): Create the session tree view in main
        with the new mainwindow method ShowSessionTree and not directly
        the application's OnInit method

        * Thuban/UI/tree.py (myTreeCtrlPanel):
        (SessioinTreeCtrl): Rename to SessioinTreeCtrl and turn it into a
        TreeCtrl isntead of a panel. This affects most method since we now
        refer to self instead of self.tree
        (SessionTreeView): New class implementing a non-modal dialog
        showing the session tree.

        * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Pass the
        layer to the tableview dialog.

        * Thuban/UI/tableview.py: Add some doc-strings
        (TableGrid):
        (TableGrid.OnRangeSelect):
        (TableGrid.OnSelectCell):
        (TableFrame.__init__):
        (TableFrame.row_selected):
        Selecting rows in the grid view now updates the selected shapes
        through the TableFrame. To achieve this we derive TableGrid from
        Publisher and introduce the message type ROW_SELECTED which the
        TableFrame subscribes to and which is issued by OnRangeSelect and
        OnSelectCell

        (DataTable.SelectRow): Removed because it's no longer needed in
        the row/shape selection scheme

        * Thuban/UI/dialogs.py: New file implementing common classes for
        dialogs

        * Thuban/UI/tableview.py (TableGrid.__init__): Don't subscribe to
        the SELECTED_SHAPE message anymore. This is now handled by the
        parent.
        (TableGrid.select_shape): Only update the selection if the shape
        is not None.
        (TableFrame): Inherit from the new NonModalDialog class.
        (TableFrame.__init__, TableFrame.select_shape): Handle the
        SELECT_SHAPE message.
        (TableFrame.OnClose): Extend the inherited method to unsubscribe
        SELECT_SHAPE

        * Thuban/UI/mainwindow.py (MainWindow.init_dialogs):
        (MainWindow.add_dialog):
        (MainWindow.dialog_open):
        (MainWindow.remove_dialog):
        (MainWindow.get_open_dialog): New methods to maintain a dictionary
        of opened non-modal dialogs.

        (MainWindow.__init__): Initialize the new non-modal dictionary
        management code
        (MainWindow.LayerShowTable): maintain separate dialogs for each
        table using the non-modal dialog management code to only open a
        view once for each table.

        (MainWindow.IdentifyTool):
        (MainWindow.__init__):
        (MainWindow.identify_view_on_demand): Don't open the identify view
        in IdentifyTool anymore. This will be done automatically by the
        new method identify_view_on_demand which handles the
        SELECTED_SHAPE message so that the identify view will be opened on
        demand

        * Thuban/UI/identifyview.py (IdentifyListCtrl.__init__): Remove
        the interactor argument. The SELECTED_SHAPE message is now handled
        by the parent.
        (IdentifyView.__init__): Add the interactor argument so that we
        can handle the SELECTED_SHAPE message here
        (IdentifyView.selected_shape): New method to handle the
        SELECTED_SHAPE messages

        * Thuban/UI/identifyview.py (IdentifyView): Derive from the new
        NonModalDialog class
        (IdentifyView.OnClose): Extend the inherited version to
        unsubscribe SELECT_SHAPE

        * Thuban/Model/session.py (Session.UnsetModified): Remove debug prints

2001-09-05  Bernhard Herzog  <[email protected]>

        * Thuban/UI/view.py (MapCanvas.__init__): New argument, interactor.

        * Thuban/UI/mainwindow.py (MainWindow.__init__): New argument
        interactor to pass through to the MapCanvas

        * Thuban/UI/application.py (ThubanApplication.OnInit): Use the new
        argument to the MainWindow constructor to get rid of the ugly hack
        that made main.app available early just so that the mapcanvas
        could access the interactor object.

2001-09-04  Bernhard Herzog  <[email protected]>

        * Thuban/UI/mainwindow.py (MainWindow.RunMessageBox): New method
        that runs a modal message box
        (MainWindow.OnClose): Use the new method
        (MainWindow.RemoveLayer): Just do nothing in case no layer is
        selected. The command should be grayed out anyway, so there's no
        need to pop up a message box.
        (MainWindow.AddLayer): Pop up a message box with an error message
        if the shape file can't be opened

        * Thuban/Model/layer.py (Layer.__init__): Open the shapefile
        immediately. This will cause an exception in case the file can't
        be opened and we can display an appropriate message.

        * MANIFEST.in: Add extensions/pyprojection/LICENSE

        * setup.py (thuban_bdist_rpm): New class implementing a Thuban
        specific bdist_rpm command.

        * Thuban/UI/main.py: Catch ImportError exceptions when importing
        the locale module because it may not be available on some
        installations.

        * extensions/pyprojection/LICENSE: Copy of the license text in
        Projection.i. Having it in a separate file makes it easier to
        refer to license text in e.g. RPMs

2001-09-03  Bernhard Herzog  <[email protected]>

        * setup.py: use wx-config instead of wxgtk-config because it's
        more generic

        * setup.py (ThubanInstall.get_outputs): Add the symlink in
        <prefix>/bin to the outputs
        (ThubanInstall.link_file): New method to link files. We need this
        because the standard copy_files refuses to link non-existing
        files.
        (ThubanInstall.run): Remove the leading install root from the
        script filename if an install root was specified and use the new
        link_file method

        * Thuban/UI/mainwindow.py (MainWindow.AddLayer): Fit the map to
        the window when the first layer is added to the map.

        * setup.py (ThubanInstall.run): Honor the build root (self.root)
        when linking thuban.py to <prefix>/bin

2001-08-31  Bernhard Herzog  <[email protected]>

        * setup.py: In the setup call, the install parameters shouldn't
        have trailing slashes because distutils on non-posix platforms
        doesn't like that. The same applies to other directories like
        "Resources/Bitmaps"

        In the configuration section for nt, move the wxWindows directory
        optins into the part clearly marked as editable.

        (InstallLocal.initialize_options):
        (InstallLocal.user_options): remove the currently unused debug
        flag
        (thuban_build_py.find_all_modules): Add this method so that it
        works for our case of having packages and modules in one
        distribution as well.
        (ThubanInstall.initialize_options):
        (ThubanInstall.finalize_options):
        (ThubanInstall.user_options):
        (ThubanInstall.boolean_options): Add new options, do-symlink and
        extra files. Since these are the first ThubanInstall specific
        options, override user_options and boolean_options
        (ThubanInstall.run): Honor the new do-symlink and extra-files
        options.
        (ThubanInstall.get_outputs): Add to override the base-class's
        version and add the extra-files to the outputs
        (bdist_inno): New class for windows distributions with Inno Setup
        (InnoIconItem): Helper class for bdist_inno
        (thuban_bdist_inno): Thuban specific version of bdist_inno. Added
        this together with the appropriate parameters, to the setup call.

        * setup.cfg (bdist_inno): added new section for the inno setup
        installer

        * Thuban/UI/tree.py (myTreeCtrlPanel.__init__): New inst var
        changing_selection to avoid recursive selection events when
        modifying the selection in response to a selection event.
        (myTreeCtrlPanel.normalize_selection): Set the new inst var when
        changing the tree's selection.
        (myTreeCtrlPanel.OnSelChanged): Only normalize the selection when
        we're not being called indirectly from normalize_selection.

        * Thuban/UI/mainwindow.py (MainWindow.update_command_ui): Call
        event.Check only if the command is actuall checkable.
        (MainWindow.__init__): Call the toolbar's Realize method to make
        sure that the items are actually shown

2001-08-28  Bernhard Herzog  <[email protected]>

        * setup.py: Fix some doc strings

        * ChangeLog: started

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svn:keywords	Author Date Id Revision