/[thuban]/branches/WIP-pyshapelib-bramz/ChangeLog

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-revision 762 by jonathan,
Tue Apr 29 09:02:33 2003 UTC
+revision 1318 by jonathan,
Mon Jun 30 09:57:16 2003 UTC
 Line 1
--04-25  Jonathan Coles   <[email protected]>
+-06-30  Jonathan Coles   <[email protected]>
+         * Thuban/version.py: Update version to 0.8.1
+         * MANIFEST.in: Added Projections so that default.proj is
+         included.
+-06-26  Jonathan Coles   <[email protected]>
+         New About box with lots more information including library
+         versions and credits. More/better version checking before
+         Thuban starts.
+         * Thuban/UI/about.py: New. New About box that displays
+         library version information and credits.
+         * Thuban/version.py: Added new 'versions' dictionary which
+         contains the verions of various libraries which are checked
+         when the module loads.
+         (verify_versions): Check all version numbers and returns
+         a list of errors.
+         * Thuban/UI/classifier.py (Classifier.__EnableButtons):
+         Reset the status of the buttons as the situation warrants,
+         but in a better more reliable way by not relying on the
+         current status to determine what needs to change.
+         * Thuban/UI/main.py (wxCHECK_VERSION): Removed. Not needed.
+         (verify_versions): Remove most of the code since it is
+         now in Thuban.version.verify_versions.o
+         * Thuban/UI/mainwindow.py (MainWindow.About): Call new
+         About box in Thuban.UI.about.
+         * extensions/thuban/gdalwarp.cpp (get_gdal_version): New.
+         Returns the version of gdal library being used as a string.
+         * extensions/thuban/wxproj.cpp (check_version, check_version_gtk):
+         Removed.
+         (get_proj_version): Return the version of PROJ that the file
+         was compiled with.
+         (get_gtk_version): Return th version of GTK that the file
+         was compiled with.
+-06-25  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py (Classifier.EditSymbol): The parent
+         of the SelectPropertiesDialog should be self so the window
+         appears on top.
+         (ClassGroupPropertiesCtrl.DoEdit): The parent
+         of the SelectPropertiesDialog should be self so the window
+         appears on top.
+         * Thuban/UI/resource.py: Cleaned up how we determine file
+         extensions.
+         (GetImageResource): Return an wxImage from our Resources.
+-06-24  Jonathan Coles   <[email protected]>
+         * Thuban/UI/renderer.py (ExportRenderer.render_legend):
+         Check that a layer has a classification before trying
+         to get it. Raster layers don't have classifications.
+-06-23  Jonathan Coles   <[email protected]>
+         * setup.py: Add Resources/XML to resource list.
+-06-23  Jonathan Coles   <[email protected]>
+         * setup.cfg: Fix copyright dates
+-06-23  Jonathan Coles   <[email protected]>
+         * MANIFEST.in: Update with Resources/XML
+         * setup.py: Don't include Locale resources yet as we don't
+         have any and it causes problems building the distribution
+         for Windows. Update version to 0.8.0.
+         * Doc/thuban.dtd: Removed since it is now in Resources/XML.
+         * Thuban/UI/mainwindow.py: Add blank line at the end because
+         file was not being read correctly building the Windows
+         distribution.
+-06-23  Jonathan Coles   <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.About): Fix text.
+         * Thuban/version.py: Temporarily update longversion for
+         the 0.8 release so that it doesn't have the cvs revision.
+-06-23  Jonathan Coles   <[email protected]>
+         * Thuban/UI/common.py (ThubanBeginBusyCursor): Call wxSafeYield
+         to make sure that we don't create reentrant possibilities with
+         wxYield.
+         * Thuban/UI/view.py (MapCanvas.OnPaint): Call wxBeginBusyCursor()
+         directly to avoid the wxSafeYield() call which generates an
+         OnPaint event causing infinite recursion. Don't try to catch
+         exception anymore. This was for before there were limits on map
+         scaling.
+-06-23  Bernhard Herzog  <[email protected]>
+         Bug fix for RT #1961:
+         * Thuban/Model/load.py (SessionLoader.start_derivedshapesource):
+         Register DerivedShapestores with the session
+         * Thuban/Model/session.py (Session.Tables): Make sure each table
+         is only listed once.
+         * test/test_load.py (TestJoinedTable.test): Add check_format call.
+         Update file contents to match the one written out.
+-06-20  Bernhard Herzog  <[email protected]>
+         * test/xmlsupport.py (SaxEventLister.startElementNS)
+         (SaxEventLister.endElementNS): Do not include the qname. Python
+.2.1 and 2.2.2 and 2.2.3 differ in this regard. In 2.2.1 qname it
+         is (presumably incorrectly) None, whereas it's a string with the
+         element name in the later versions.
+         * test/test_xmlsupport.py (TestEventList.test_even_list_simple)
+         (TestEventList.test_even_list_namespace): Update tests to reflect
+         the new behaviour
+         (TestEventList.test_even_list_id_normalization): Fix doc-string
+-06-20  Jonathan Coles   <[email protected]>
+         * Thuban/Model/layer.py (BaseLayer.HasShapes): New. Overridden
+         by deriving classes to determine if that layer supports shapes.
+         (Layer): Override HasShapes and return true.
+         * Thuban/UI/classgen.py: Use Thuban[Begin|End]BusyCursor()
+         instead of a direct call to wx[Begin|End]CusyCursor().
+         (GenUniquePanel._OnRetrieve): Set busy cursor while retrieving
+         table data.
+         * Thuban/UI/common.py (ThubanBeginBusyCursor, ThubanEndBusyCursor):
+         New. Wrappers around the wxWindows functions that allow us to
+         make additional calls such as wxYield which gives the native
+         system a chance to update the cursor correctly.
+         * Thuban/UI/tableview.py: Use Thuban[Begin|End]BusyCursor()
+         instead of a direct call to wx[Begin|End]CusyCursor().
+         * Thuban/UI/view.py: Use Thuban[Begin|End]BusyCursor()
+         instead of a direct call to wx[Begin|End]CusyCursor().
+         (MapCanvas.find_shape_at): Check if the current search layer
+         support shapes, otherwise go on to the next layer.
+         * test/test_layer.py: Add tests in each type of layer for
+         HasClassification() and HasShapes()
+-06-20  Jonathan Coles   <[email protected]>
+         * Thuban/UI/view.py (MapCanvas.OnPaint): Call wxYield after
+         turning on the busy cursor to allow the system to change the
+         cursor before we begin painting. This fixes a problem that
+         was occuring only under GTK. Fixes RTbug #1840.
+-06-20  Bernhard Herzog  <[email protected]>
+         * Resources/XML/thuban-0.8.dtd: New DTD for the new file format
+         version.
+         * Thuban/Model/save.py (sort_data_stores): New. Make topological
+         sort of the data sources so they can be written with sources that
+         data sources that depend on other data sources come after the
+         sources they depend on.
+         (SessionSaver.__init__): Add idmap instance variable to map from
+         objects to the ids used in the file.
+         (SessionSaver.get_id, SessionSaver.define_id)
+         (SessionSaver.has_id): New. Methods to manage the idmap
+         (SessionSaver.write): Use thuban-0.8.dtd
+         (SessionSaver.write_session): Add a namespace on the session and
+         write out the data sources before the maps.
+         (SessionSaver.write_data_containers): New. Write the data
+         containers.
+         (SessionSaver.write_layer): Layer elements now refer to a
+         shapestore and don't contain filenames anymore.
+         * Thuban/Model/load.py (LoadError): Exception class to raise when
+         errors in the files are discovered
+         (SessionLoader.__init__): Define dispatchers for elements with a
+         thuban-0.8 namespace too.
+         (SessionLoader.check_attrs): New helper method to check and
+         convert attributes
+         (AttrDesc): New. Helper class for SessionLoader.check_attrs
+         (SessionLoader.start_fileshapesource)
+         (SessionLoader.start_derivedshapesource)
+         (SessionLoader.start_filetable, SessionLoader.start_jointable):
+         Handlers for the new elements in the new fileformat
+         (SessionLoader.start_layer): Handle the shapestore attribute in
+         addition to filename.
+         (SessionLoader.start_table, SessionLoader.end_table): Removed.
+         They were never used in the old formats and aren't needed for the
+         new.
+         * Thuban/Model/session.py (Session.DataContainers): New method to
+         return all "data containers", i.e. shapestores and tables
+         * test/xmlsupport.py (SaxEventLister.__init__)
+         (SaxEventLister.startElementNS, sax_eventlist): Add support to
+         normalize IDs.
+         * test/test_xmlsupport.py
+         (TestEventList.test_even_list_id_normalization): New test case for
+         id normalization
+         * test/test_load.py (LoadSessionTest.check_format): Use ID
+         normalization
+         (LoadSessionTest.thubanids, LoadSessionTest.thubanidrefs): New
+         class atrributes used for ID normalization
+         (TestSingleLayer, TestLayerVisibility, TestLabels.test)
+         (TestLayerProjection.test, TestRasterLayer.test): Adapt to new
+         file format
+         (TestJoinedTable): New test for loading sessions with joined
+         tables.
+         (TestLoadError): New. Test whether missing required attributes
+         cause a LoadError.
+         * test/test_save.py (SaveSessionTest.thubanids)
+         (SaveSessionTest.thubanidrefs): New class attributes for ID
+         normalization in .thuban files.
+         (SaveSessionTest.compare_xml): Use id-normalization.
+         (SaveSessionTest.testEmptySession)
+         (SaveSessionTest.testLayerProjection)
+         (SaveSessionTest.testRasterLayer)
+         (SaveSessionTest.testClassifiedLayer): Adapt to new file format.
+         (SaveSessionTest.testLayerProjection): The filename used was the
+         same as for testSingleLayer. Use a different one.
+         (SaveSessionTest.test_dbf_table)
+         (SaveSessionTest.test_joined_table): New test cases for saving the
+         new data sources structures.
+         (TestStoreSort, MockDataStore): Classes to test the sorting of the
+         data stores for writing.
+         * test/runtests.py: Add CVS keywords
+-06-20  Jonathan Coles   <[email protected]>
+         * test/test_session.py
+         (UnreferencedTablesTests.test_unreferenced_tables_with_joins):
+         Use the cultural_landmark-point.dbf file for the store so that
+         the table rows and shape count match.
+-06-20  Jonathan Coles   <[email protected]>
+         * Thuban/Model/data.py (DerivedShapeStore.__init__): Raise
+         an exception if the number of shapes is different from the
+         number of rows in the table. Address RTbug #1933.
+         * test/test_layer.py (TestLayer.test_derived_store): Add
+         a test for the new exception in DerivedShapeStore.__init__.
+         * test/support.py (FloatTestCase): Removed since there is
+         already FloatComparisonMixin. Fixes RTbug #1954.
+         (FloatComparisonMixin.assertFloatEqual): Include test for
+         infinity that was part of FloatTestCase.
+         * test/test_range.py (RangeTest): Inherit from
+         support.FloatComparisonMixin now that we don't have
+         support.FloatTestCase.
+-06-20  Bernhard Herzog  <[email protected]>
+         * test/test_save.py (SaxEventLister, sax_eventlist): Removed. Use
+         the implementation in xmlsupport instead.
+         (SaveSessionTest.compare_xml): sax_eventlist is now in xmlsupport
+         * test/test_proj.py: Import sax_eventlist from xmlsupport instead
+         of test_save
+-06-20  Bernhard Herzog  <[email protected]>
+         * test/test_load.py (LoadSessionTest.check_format): New helper
+         method to make sure the test files we load might have been written
+         by the current thuban version.
+         (ClassificationTest.TestLayers, TestSingleLayer.test)
+         (TestLayerVisibility.test, TestClassification.test)
+         (TestLabels.test, TestLayerProjection.test, TestRasterLayer.test):
+         Add check_format() calls and fix the thuban data to match the data
+         that would be written by saving the session loaded from it.
+         * test/xmlsupport.py (SaxEventLister, sax_eventlist): Copies of
+         the same class and function in test_save.
+         * test/test_xmlsupport.py (TestEventList): New. test cases for
+         sax_eventlist
+-06-20  Bernhard Herzog  <[email protected]>
+         * Resources/XML/thuban.dtd: Add comment about which versions of
+         Thuban are covered by this DTD
+         (map): Fix content model for layers and raster layers. There can
+         be any number or layers and raster layers in any order.
+-06-20  Jonathan Coles   <[email protected]>
+         This is mainly about fixing RTbug #1949.
+         * Thuban/Model/classification.py: Remove "from __future__"
+         import statement since python 2.2 is the earliest supported
+         version.
+         * Thuban/Model/proj.py (Projection.GetProjectedUnits): New.
+         Currently returns PROJ_UNITS_METERS or PROJ_UNITS_DEGREES
+         depending on the units this projection *forwards* into.
+         * Thuban/Model/save.py (SessionSaver.write_classification):
+         Remove unnecessary use of lambdas and nested functions.
+         * Thuban/UI/legend.py (ScaleBarBitmap.__SetScale): Do scale
+         adjustment here if the map projection uses degrees.
+         * Thuban/UI/scalebar.py (ScaleBar.DrawScaleBar): Remove
+         scale adjust code since it is now done before calling
+         this method. Don't do anything if the map projection
+         is None.
+-06-19  Bernhard Herzog  <[email protected]>
+         Move version specific load tests to their own file.
+         * test/test_load.py: Expand the doc-string to explain a bit how to
+         handle file format changes.
+         (TestClassification.test): Update the docstring as this test is
+         not about Thuban 0.2 anymore.
+         * test/test_load_0_2.py: New file with the load tests for thuban
+         files created with Thuban 0.2 and earlier.
+-06-19  Bernhard Herzog  <[email protected]>
+         Add XML validation to some of the tests. Validation will only be
+         done if pyRXP is installed (http://reportlab.com/xml/pyrxp.html).
+         To make the DTD available to the test cases it's moved into
+         Resources/XML
+         * Resources/XML/thuban.dtd: New. This is now the real Thuban DTD
+         for versions up to and including 0.2. Two slight changes: added an
+         encoding specification and fixed the comment which refered to
+         GRASS, not Thuban
+         * test/xmlsupport.py: New support module for tests involving XML.
+         Currently there's a mix-in class for XML validation.
+         * test/test_xmlsupport.py: New. Tests for the xmlsupport module
+         * test/test_save.py (SaveSessionTest): Derive from ValidationTest
+         so that we can validate the
+         (SaveSessionTest.testEmptySession)
+         (SaveSessionTest.testSingleLayer)
+         (SaveSessionTest.testSingleLayer)
+         (SaveSessionTest.testLayerProjection)
+         (SaveSessionTest.testRasterLayer)
+         (SaveSessionTest.testClassifiedLayer): Validate the generated XML
+         * test/runtests.py (main): Call print_additional_summary instead
+         of print_garbage_information
+         * test/support.py (resource_dir): New function to return the
+         "Resource" subdirectory
+         (print_additional_summary): New function to combine several
+         summary functions
+         (run_tests): Use print_additional_summary instead of calling
+         print_garbage_information directly
+-06-19  Bernhard Herzog  <[email protected]>
+         * Doc/thuban.dtd (classification): Correct the content model of
+         the classification element.
+         (projection): Add the "name" attribute
+-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.
+-06-18  Jonathan Coles   <[email protected]>
+         * setup.py: Fix a few problems that occured under Windows.
+-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.
+-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.
+-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
+-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.
+-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
+-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.
+-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.
+-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.
+-06-12  Jonathan Coles   <[email protected]>
+         * extensions/thuban/gdalwarp.cpp: Removed debug printing as
+         the image is rendered. Fixes RTbug #1937.
+-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.
+-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.
+-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.
+-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.
+-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
+-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.
+-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.
+-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.
+-06-11  Frank Koormann  <[email protected]>
+         * Thuban/Lib/fileutil.py (get_application_dir): Minor stability
+         update.
+-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.
+-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.
+-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
+-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
+-06-06  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/mainwindow.py: Improved and partly added help texts for
+         the menu items.
+-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.
+-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.
+-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.
+-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.
+-06-03  Thomas Koester  <[email protected]>
+         * Thuban/Model/classgen.py (GenQuantiles0): New function.
+-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
+-06-02  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/classgen.py (GenQuantilesPanel.GetList): Resource
+         acquisition has to happen before the try in a try-finally.
+-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.
+-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.
+-05-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/legend.py (LegendTree.GetRootItem): Reset
+         availImgListIndices when a new image list is created
+-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.
+-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
+-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.
+-05-29  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/tableview.py (LayerTableFrame.OnClose): Bug-fix: Now
+         unsubscribes all that is subcribed in __init__.
+-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.
+-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
+-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
+-05-28  Jan-Oliver Wagner <[email protected]>
+         * Thuban/Model/layer.py (Layer.TreeInfo): Fixed a bug (a layer
+         does not necessarily have a filename).
+-05-28  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.TableClose, MainWindow.TableShow):
+         sort the selection list for the dialog.
+-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.
+-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.
+-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
+-05-28  Frank Koormann  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.TableShow):
+         Added wxDEFAULT_DIALOG_STYLE to show table dialog styles.
+-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.
+-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.
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (table_close command): Make it sensitive
+         iff there are unreferenced tables in the session
+-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.
+-05-27  Frank Koormann  <[email protected]>
+         * Thuban/UI/tableview.py (QueryTableFrame.__init__): The "_S_election"
+         display has some unwanted side effects. Removed again.
+-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"
+-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.
+-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
+-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
+-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"
+-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.
+-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.
+-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.
+-05-26  Frank Koormann  <[email protected]>
+         * Thuban/UI/projdialog.py (ProjFrame.__do_layout, ProjPanel._DoLayout):
+         Center Choices.
+-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
+-05-26  Bernhard Herzog  <[email protected]>
+         * test/test_transientdb.py
+         (TestTransientTable.run_iceland_political_tests): Fix a comment.
+-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
+-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.
+-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.
+-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.
+-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:'.
+-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.
+-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
+-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.
+-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.
+-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
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.OnJoin): Make sure to really call
+         the wxMessageDialog's Destroy() method.
+-05-22  Frank Koormann  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.__init__): Make use of
+         TransientTable.Title()
+-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.
+-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
+-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.
+-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
+-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.
+-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.
+-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
+-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.
+-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
+-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
+-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.
+-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.
+-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.
+-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
+-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.
+-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.
+-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.
+-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
+-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.
+-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.
+-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.
+-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.
+-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
+-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.
+-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).
+-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.
+-05-12  Frank Koormann <[email protected]>
+         * Thuban/Model/save.py (XMLWriter.encode()): Explicite call to unicode
+         and latin1. Fixes #1851 finally.
+-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.
+-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.
+-05-09  Frank Koormann <[email protected]>
+         * Thuban/UI/scalebar.py (DrawScaleBar): Draw only if interval > 0.0.
+-05-08  Frank Koormann <[email protected]>
+         Coding style updates
+         * test/test_scalebar.py: Replaced tab indentation by spaces.
+         * Thuban/UI/scalebar.py: Explicit imports.
+-05-08  Frank Koormann <[email protected]>
+         * Thuban/UI/scalebar.py
+         (ScaleBar.DrawScalebar): Format string bug fixed.
+-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
+-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.
+-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.
+-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
+-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
+-05-07  Frank Koormann <[email protected]>
+         * Resources/Bitmaps/fulllayerextent.xpm,
+         Resources/Bitmaps/fullselextent.xpm: Replaced the place holders with
+         new icons.
+-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
+-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
+-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
+-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().
+-05-06  Bernhard Herzog  <[email protected]>
+         * Resources/Projections/defaults.proj: Fix spelling of Mercator
+-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.
+-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
+-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.
+-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.
+-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.
+-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.
+-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.
+-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).
+-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)
+-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.
+-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.
+-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
+-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.
+-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.
+-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.
+-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.
+-04-29  Jonathan Coles   <[email protected]>
          * Thuban/Model/proj.py (Projection): Removed Set*() methods to make
          Projection an immutable item. Fixes RTbug #1825.

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