/[thuban]/branches/greater-ms3/thuban/ChangeLog

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-revision 425 by bh,
Mon Feb 24 14:17:19 2003 UTC
+revision 870 by frank,
Thu May  8 14:06:32 2003 UTC
 Line 1
+-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.
+         (Projection.__init__): Initialize instance variables here.
+         (ProjFile.Replace): New. Replace the given projection object with
+         the new projection object. This solves the problem of needing the
+         mutator Projection.SetProjection() in the ProjFrame class and
+         allows a projection to change parameters without changing its
+         location in the file.
+         * Thuban/UI/mainwindow.py (MainWindow.SaveSessionAs): Dialog should
+         be of type wxSAVE and should verify overwriting a file.
+         * Thuban/UI/projdialog.py (ProjFrame._OnSave): Use the new
+         ProjFile.Replace() method instead of the mutator
+         Projection.SetProjection(). Also requires that we reassign the
+         client data to the new projection.
+         * test/test_proj.py (TestProjection.test): Test GetName() and
+         GetAllParameters()
+         (TestProjFile.test): Remove tests for Set*() methods. Add tests
+         for Replace().
+-04-25  Jonathan Coles   <[email protected]>
+         * Thuban/Model/save.py (SessionSaver.write_projection): Make sure
+         to save the name of the projection.
+         * test/test_save.py (SaveSessionTest.testLayerProjection): New
+         test to verify layer projections are saved correctly.
+-04-25  Jonathan Coles   <[email protected]>
+         * Thuban/Model/proj.py (Projection.SetName): Set the name
+         to "Unknown" if name is None.
+         (Projection.SetAllParameters): New. Set the projection's
+         parameter list to the one supplied.
+         (Projection.SetProjection): New. Set the projection's
+         properties to those of the supplied Projection.
+         * Thuban/UI/mainwindow.py (MainWindow.MapProjection): Set
+         the dialog title to include the map's title.
+         (MainWindow.LayerProjection): Set the dialog title to include
+         the layer's title.
+         * Thuban/UI/projdialog.py (ProjFrame.__ShowError): Consolidate
+         error dialogs into a single method call.
+         (ProjFrame.__VerifyButtons): Add more states to check.
+         (ProjFrame.__GetProjection): Return the current state of an
+         edited projection or None.
+         (ProjFrame.__FillAvailList): Remove checks for states that
+         shouldn't exist.
+         (ProjFrame._OnNew): Clear all selected items and supply
+         a projection panel if necessary.
+         * test/test_proj.py (TestProjFile.test): Add tests for
+         ProjFile.SetAllParameters, ProjFile.SetProjection,
+         ProjFile.SetName.
+-04-25  Jonathan Coles   <[email protected]>
+         * Thuban/UI/projdialog.py (ProjFrame.__FillAvailList): Now
+         takes an optional argument to select the current projection.
+         This does not guarantee that the item is visible due to
+         limited wxWindows functionality. Fixes RTBug #1821.
+-04-25  Jonathan Coles   <[email protected]>
+         * Thuban/Model/load.py (SessionLoader.start_projection): Remember
+         the projection name and use it when constructing the Projection
+         object.
+         * Thuban/Model/proj.py (Projection.__init__): Change the default
+         value for 'name' to None and then test if name is equal to None
+         in the body of the constructor. This way the caller doesn't have to
+         know what the default value should be. Namely, useful in load.py
+         where we have to pick a default value if the 'name' parameter
+         doesn't exist in the XML file.
+         * test/test_load.py (LoadSessionTest.testLayerProjection): New.
+         Tests a file where a layer has a projection.
+-04-25  Jonathan Coles   <[email protected]>
+         * Thuban/Model/layer.py (Layer.TreeInfo): Add an item to the
+         tree for projection information.
+         * Thuban/Model/load.py (XMLReader.GetFilename): Renamed from
+         XMLReader.GetFileName.
+         (SessionLoader): Added support for loading projection tags that
+         appear inside a layer.
+         * Thuban/Model/proj.py (ProjFile): Document the class. Move
+         back to using a list because the order of the projections in
+         the file is important to maintain. Fixes RTbug #1817.
+         * Thuban/Model/resource.py: Rename calls to ProjFile.GetFileName
+         to ProjFile.GetFilename.
+         * Thuban/Model/save.py (SessionSaver.write_layer): Save projection
+         information.
+         * Thuban/UI/projdialog.py (ProjFrame._OnAddToList): Renamed from
+         ProjFrame._OnSaveAs. Removed old dead code from previous
+         implementation.
+         (ProjFrame._OnExport): Add support for exporting more than one
+         projection to a single file.
+         (ProjFrame.__FillAvailList): use string formatting (% operator)
+         to build strings that are (partly) translated. Fixes RTbug #1818.
+         * test/test_proj.py (TestProjFile.test): New. Tests the base ProjFile
+         class.
+-04-24  Bernhard Herzog  <[email protected]>
+         * po/es.po: Updated Spanish translation by Daniel Calvelo Aros
+         * po/fr.po: New. French translation by Daniel Calvelo Aros
+         * Thuban/UI/projdialog.py (ProjFrame._OnSaveAs): Don't translate
+         empty strings.
+-04-24  Jonathan Coles   <[email protected]>
+         * Thuban/Model/layer.py (Layer.GetProjection): New. Needed to
+         implement the interface that the ProjFrame dialog expects.
+         * Thuban/Model/proj.py (Projection.SetName): New. Allows the
+         name of the projection to be changed.
+         (ProjFile): Use a dictionary instead of a list so that removing
+         projections is easier and we are sure about uniqueness.
+         (ProjFile.Remove): Remove the given projection object.
+         * Thuban/Model/resource.py (GetSystemProjFiles, GetUserProjFiles):
+         Return a list with only one projection file instead of searching for
+         any projection file. This simplifies many things if the user can
+         only have one system file and one user file.
+         * Thuban/UI/classgen.py: Change all references to
+         genCombo to genChoice.
+         * Thuban/UI/mainwindow.py: Add a Projection option under the
+         layer menu.
+         (MainWindow.LayerProjection): New. Open up a projection window
+         for a layer.
+         * Thuban/UI/projdialog.py: Large changes to how the dialog is
+         laid out. Use three panels instead of one. One for the list of
+         projections, one for the edit controls, and one for the buttons.
+         Fixed resizing problems so that the dialog resizes correctly
+         when the projection panel changes. Added import/export, save, and
+         new buttons/functionality.
+-04-24  Bernhard Herzog  <[email protected]>
+         First step towards table management. Introduce a simple data
+         abstraction so that we replace the data a layer uses more easily
+         in the next step.
+         * Thuban/Model/data.py: New file with a simple data abstraction
+         that bundles shapefile and dbffile into one object.
+         * Thuban/Model/session.py (Session.OpenShapefile): New method to
+         open shapefiles and return a shape store object
+         * Thuban/Model/layer.py (Layer.__init__): Pass the data as a store
+         object instead of a shapefile filename. This introduces a new
+         instance variable store holding the datastore. For intermediate
+         backwards compatibility keep the old instance variables.
+         (open_shapefile): Removed. No longer needed with the shape store.
+         (Layer.SetShapeStore, Layer.ShapeStore): New methods to set and
+         get the shape store used by a layer.
+         (Layer.Destroy): No need to explicitly destroy the shapefile or
+         table anymore.
+         * Thuban/UI/mainwindow.py (MainWindow.AddLayer)
+         (MainWindow.AddLayer): Use the session's OpenShapefile method to
+         open shapefiles
+         * Thuban/Model/load.py (ProcessSession.start_layer): Use the
+         session's OpenShapefile method to open shapefiles
+         * test/test_classification.py
+         (TestClassification.test_classification): Use the session's
+         OpenShapefile method to open shapefiles and build the filename in
+         a more platform independed way
+         * test/test_layer.py (TestLayer.setUp, TestLayer.tearDown):
+         Implement to have a session to use in the tests
+         (TestLayer.test_arc_layer, TestLayer.test_polygon_layer)
+         (TestLayer.test_point_layer, TestLayer.test_empty_layer): Use the
+         session's OpenShapefile method to open shapefiles
+         (TestLayerLegend.setUp): Instantiate a session so that we can use
+         it to open shapefiles.
+         (TestLayerLegend.tearDown): Make sure that all references to
+         layers and session are removed otherwise we may get a resource
+         leak
+         * test/test_map.py (TestMapAddLayer.test_add_layer)
+         (TestMapWithContents.setUp): Instantiate a session so that we can
+         use it to open shapefiles.
+         (TestMapWithContents.tearDown): Make sure that all references to
+         layers, maps and sessions are removed otherwise we may get a
+         resource leak
+         ("__main__"): use support.run_tests() so that more info about
+         uncollected garbage is printed
+         * test/test_save.py (SaveSessionTest.testSingleLayer): Use the
+         session's OpenShapefile method to open shapefiles
+         ("__main__"): use support.run_tests() so that more info about
+         uncollected garbage is printed
+         * test/test_selection.py (TestSelection.tearDown): Make sure that
+         all references to the session and the selection are removed
+         otherwise we may get a resource leak
+         (TestSelection.get_layer): Instantiate a session so that we can
+         use it to open shapefiles.
+         ("__main__"): use support.run_tests() so that more info about
+         uncollected garbage is printed
+         * test/test_session.py (TestSessionBase.tearDown)
+         (TestSessionWithContent.tearDown): Make sure that all references
+         to the session and layers are removed otherwise we may get a
+         resource leak
+         (TestSessionWithContent.setUp): Use the session's OpenShapefile
+         method to open shapefiles
+-04-24  Jonathan Coles   <[email protected]>
+         * Thuban/Model/load.py (XMLReader.read): Should have been checking
+         if the file_or_filename object had the 'read' attribute.
+-04-23  Jonathan Coles   <[email protected]>
+         * Thuban/Model/resource.py: Fixes RTbug #1813.
+         (ReadProjFile): Add documentation about which exceptions are raised.
+         Always pass the exceptions up to the caller.
+         (GetProjFiles): If the directory can't be read return an empty list.
+         If any of the proj files can't be read skip that file and go
+         on to the next one.
+         * test/test_proj.py: Added test cases to handle nonexistent files,
+         unreadable files, and files that don't parse correctly.
+-04-23  Jonathan Coles   <[email protected]>
+         Projection dialog. Allows the user to select from a list
+         of projection templates and optionally edit them and save new ones.
+         * Thuban/UI/projdialog.py (ProjFrame): New. Main dialog.
+         (ProjPanel): Base class for projection specific panels.
+         (TMPanel): Projection panel for Transverse Mercartor.
+         (UTMPanel): Projection panel for Universal Transverse Mercartor.
+         (LCCPanel): Projection panel for Lambert Conic Conformal.
+         (GeoPanel): Projetion panel for Geographic Projection.
+-04-23  Jonathan Coles   <[email protected]>
+         * Thuban/Model/load.py (XMLReader): Renamed from XMLProcessor to
+         promote symmetry. There now exists XMLReader and XMLWriter.
+         (XMLReader.read): New. Call to read the given file descriptor or
+         filename.
+         (XMLReader.close): New. Make sure the file is closed.
+         (XMLReader.GetFileName): New. Return just the file name that is being
+         read from.
+         (XMLReader.GetDirectory): New. Return just the directory of the file
+         that is being read.
+         (XMLReader.AddDispatchers): New. Take a dictionary which contains
+         the names of functions to call as the XML tree is parsed.
+         (XMLReader.startElementNS): Updated to use new dispatcher dictionary.
+         (XMLReader.endElementNS): Updated to use new dispatcher dictionary.
+         (SessionLoader): Removed class variables start_dispatcher and
+         end_dispatcher since this functionality is now part of a class
+         instance. Fixes RTbug #1808.
+         (SessionLoader.__init__): Add dispatcher functions.
+         (load_xmlfile): Code was moved into the XMLReader.read().
+         (load_session): Use modified SessionLoader.
+         * Thuban/Model/map.py (Map.GetProjection): New. Returns the
+         map's projection.
+         * Thuban/Model/proj.py (Projection.GetParameters): Renamed to
+         GetAllParameters.
+         (Projection.GetParameter): Returns the value for the given parameter.
+         * Thuban/Model/resource.py: Use XMLReader and XMLWriter.
+         (GetProjFiles): Renamed from GetProjections. Now returns a list
+         of ProjFile objects.
+         (GetSystemProjFiles): Renamed from GetSuppliedProjections. Returns
+         a list of ProjFile objects whose files are not user defined.
+         (GetUserProjFiles): Renamed from GetUserProjections. Returns a
+         list of ProjFile objects whose files are user defined.
+         (ProjFileReader): Extend new XMLReader.
+         * Thuban/Model/save.py (XMLWriter): Renamed from XMLSaver to
+         promote symmetry.
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__): Use a wxChoice
+         control instead of a wxComboBox. wxChoice controls do not generate
+         events as the uses highlights possible choices which fixes problems
+         with resizing the dialog when the use selects an option.
+         * Thuban/UI/classifier.py (Classifier.__init__): Use a wxChoice
+         control instead of a wxComboBox.
+         * Thuban/UI/mainwindow.py (MainWindow.Projection): Use new projection
+         dialog.
+         * test/test_proj.py (TestProjection.test): New tests for GetParameter
+         method.
+-04-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py: Remove some unused imports and global
+         constants
+         * Thuban/UI/identifyview.py (IdentifyListCtrl.selected_shape)
+         (IdentifyGridCtrl.selected_shape): Use table, not shapetable.
+-04-17  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py: Don't import LAYER_LEGEND_CHANGED.
+         (Layer): Update doc-string since LAYER_LEGEND_CHANGED is not used
+         anymore.
+         (Layer.BoundingBox, Layer.GetFieldType, Layer.NumShapes)
+         (Layer.ShapeType, Layer.Shape): No need to call
+         self.open_shapefile since it's always called in __init__
+         * Thuban/UI/application.py (ThubanApplication.MainLoop): Removed.
+         In wxPython 2.4 there's no need to extend MainLoop anymore since
+         wxPython itself makes sure OnExit is called.
+-04-16  Jonathan Coles   <[email protected]>
+         Initial putback of projection management code. Includes new
+         classes to read and write projection files. The current load
+         and save classes were abstracted a bit so they could be reused.
+         The Projection class was extended to provide new methods and
+         have a name.
+         * Thuban/Model/load.py (XMLProcessor): New. Contains all the
+         general XML reading methods that were part of ProcessSession.
+         * Thuban/Model/proj.py (Projection.__init__): Accepts an optional
+         name.
+         (ProjFile): New. Represents a file that contains projection
+         information.
+         * Thuban/Model/resource.py: New. Contains general utilities
+         for read and writing projection files.
+         * Thuban/Model/save.py (XMLSaver): New. Contains all the
+         general XML writing methods that were part of SessionSaver.
+         (SessionSaver): Renamed from Saver.
+         * test/test_proj.py: New test cases for the projection
+         file read and write functions.
+-04-16  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Use repr() around values
+         in the ClassGroup*.__repr__() methods so it is clearer when
+         a value is a string and when it is a number.
+         * test/test_load.py: Rework the classification test to test
+         that we can load old files.
+         (testLabels): Test a file where the groups have labels.
+-04-16  Bernhard Herzog  <[email protected]>
+         Safer implementation of the performance enhancements of the
+         low-level renderer:
+         * extensions/thuban/wxproj.cpp (extract_projection)
+         (extract_pointer): Rename extract_projection to extract_pointer
+         and redefine its purpose to return the pointer stored in a CObject
+         returned by the object's cobject method. Update all callers.
+         (s_draw_info, free_draw_info, draw_polygon_init): Implement the
+         handling of these low-level parameters so that each s_draw_info
+         instance is handled as a CObject at python level that also
+         contains real references to the actual python objects which
+         contain the values in the struct. Add free_draw_info as the
+         destructor.
+         (draw_polygon_shape): Add the py_draw_info parameter which must a
+         cobject containing an s_draw_info pointer.
+         * Thuban/UI/renderer.py (MapRenderer.polygon_render_param): New
+         method to instantiat the low-level render parameter
+         (MapRenderer.draw_shape_layer): Use the new method. Remove some
+         commented out code.
+         (MapRenderer.draw_polygon_shape): Make the first parameter not the
+         layer but the low-level render parameter
+         (ScreenRenderer.draw_shape_layer): Use the low-level render
+         parameter.
+-04-15  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Implemented __repr__ for
+         the ClassGroup* classes to make debugging a bit easier.
+         (ClassGroup.SetLabel): Check that the string is an instance
+         of StringTypes not StringType. Accounts for Unicode strings.
+         * Thuban/Model/color.py: Implemented __repr__ to make
+         debugging a bit easier.
+         * Thuban/Model/save.py (Saver.write_classification): Need to
+         save the group label.
+         * test/test_load.py (testClassification): New. Loads the
+         iceland_sample_test.thuban file and checks if it was loaded
+         correctly.
+-04-15  Jonathan Coles   <[email protected]>
+         * extensions/thuban/wxproj.cpp (draw_polygon_init): New. Used
+         to improve rendering performance by initializing the variables
+         that are not change each time draw_polygon_shape() is called.
+         The values are stored in a global struct draw_info.
+         (draw_polygon_shape): Removed initialization code that is
+         now in draw_polygon_init().
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Make
+         drawing initialization call to draw_polygon_init()
+         (MapRenderer.draw_polygon_shape): Use new signature of
+         draw_polygon_shape.
+         * Thuban/UI/classgen.py (GenUniformPanel): Fix spin control
+         weirdness by setting the range to (1, maxint).
+         * Thuban/Model/classification.py (ClassGroupProperties): Make
+         instance variables private and optimize comparison operator
+         by first checking if the color references are the same.
+         (ClassGroupSingleton): Make instance variables private.
+         (ClassGroupRange): Make instance variables private.
+         * HOWTO-Release: Filled in missing steps for releasing packages.
+-04-15  Bernhard Herzog  <[email protected]>
+         First stab at internationalized messages:
+         * Thuban/__init__.py (_): Implement the translation function for
+         real using the python gettext module.
+         * Thuban/UI/classifier.py (ClassTable.GetRowLabelValue): Don't
+         translate empty strings.
+         * Thuban/UI/application.py (ThubanApplication.read_startup_files):
+         Add a missing space to a warning message
+         * po/README: New. Notes about the management of the translation
+         files.
+         * po/Makefile: New. Makefile to help manage the translation files.
+         * po/es.po: New. Spanish translation by Daniel Calvelo Aros
+         * MANIFEST.in: Include the *.mo files in Resources/Locale and the
+         translations and support files in po/
+         * setup.py (data_files): Add the *.mo files to the data_files too
+         * README: Add note about the translations when building from CVS
+-04-14  Jonathan Coles   <[email protected]>
+         * Thuban/UI/dock.py: Fixes some window resizing problems most
+         noticable under windows. Always assume the button bitmaps will
+         be there. Code clean up.
+         (DockabelWindow.Dock, DockableWindow.UnDock): Force all the
+         images for the dock/undock button to the same images.
+         Work around for RTbug #1801.
+         * Thuban/UI/legend.py (LegendPanel.__init__): The toolbar should
+         be allowed to grow within the sizer. Fixes a bug under Windows
+         where the toolbar wasn't being drawn.
+-04-14  Frank Koormann   <[email protected]>
+         * Resources/Bitmaps/dock_12.xpm, Resources/Bitmaps/undock_12.xpm:
+         Updated design to try to make the button functionality more
+         transparent.
+-04-14  Jonathan Coles   <[email protected]>
+         * Thuban/UI/legend.py (LegendPanel.__init__): Call Create() to
+         finalize the intialization of the panel.
+         * Thuban/UI/dock.py (DockPanel.Create): New. Finalizes the
+         creation of the panel. Should be the last thing called in the
+         initializer of a subclass.
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__): Actively
+         set the current selections in the combo boxes. This is needed
+         under Windows.
+         * Thuban/UI/classifier.py (Classifier.__init__): Add a top
+         level panel to the dialog so that the background colors are
+         consistent under Windows.
+-04-11  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classgen.py: Change color ramps to start at white
+         not black.
+         * Thuban/UI/legend.py: Enable/disable the legend buttons when
+         the legend changes. Fixes RTbug #1793.
+         * test/test_classification.py: Added test for copying of
+         classifications.
+-04-11  Jonathan Coles   <[email protected]>
+         * Thuban/UI/resource.py: New. Centralize the loading of resources
+         such as bitmaps.
+         * Thuban/UI/classgen.py (GenUniquePanel.__init__): Reordered buttons,
+         added images to the move buttons, added 'reverse' button.
+         (CustomRampPanel.__init__): Added images to the move buttons.
+         (GreyRamp): New. Generates a ramp from white to black.
+         (HotToColdRamp): New. Generates a ramp from cold to hot colors.
+         * Thuban/UI/classifier.py: Refactored ID's from ID_CLASSIFY_* to
+         ID_PROPERTY_*.
+         (Classifier.__init__): Minor changes to the layout.
+         (Classifier._OnTitleChanged): Listen for when the user edits the
+         title and update the dialog's title and the layer's title.
+         * Thuban/UI/dock.py: Use new bitmaps for the control buttons.
+         * Thuban/UI/legend.py: Use new bitmaps for the control buttons.
+         (LegendTree._OnMsgLayerTitleChanged): Change the displayed title
+         if the layer's title changes.
+         * Thuban/UI/mainwindow.py: Added new menu item and associated code
+         to open a dialog to rename the map.
+         (MainWindow): Use new resource class to import bitmaps.
+-04-11  Jonathan Coles   <[email protected]>
+         * Resources/Bitmaps/close_12.xpm, Resources/Bitmaps/dock_12.xpm,
+         Resources/Bitmaps/group_use.xpm, Resources/Bitmaps/group_use_all.xpm,
+         Resources/Bitmaps/group_use_none.xpm,
+         Resources/Bitmaps/group_use_not.xpm,
+         Resources/Bitmaps/hide_layer.xpm,
+         Resources/Bitmaps/layer_properties.xpm,
+         Resources/Bitmaps/lower_layer.xpm, Resources/Bitmaps/raise_layer.xpm,
+         Resources/Bitmaps/show_layer.xpm, Resources/Bitmaps/undock_12.xpm:
+         New.
+-04-10  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: (ClassGroupRange.__init__):
+         Should pass group to ClassGroup constructor.
+-04-10  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: (ClassGroup): Move all the common
+         methods of the derived classes ([Set|Get]Properties(), __eq__, __ne__)
+         here. Implement SetVisible(), IsVisible().
+         (ClassGroup.__init__): Add group parameter which acts as a copy
+         constructor.
+         * Thuban/UI/classifier.py (ClassTable): Add a new column for the
+         "Visible" check boxes.
+         (Classifier): Rename the buttons and refactor the code to match
+         the new labels.
+         * Thuban/UI/legend.py: Classify button is now called "Properties".
+         Refactored the code to change variable names.
+         (LegendTree.__FillTreeLayer): Only list a group if it is visible.
+         * Thuban/UI/mainwindow.py: MainWindow.OpenClassifier renamed to
+         MainWindow.OpenLayerProperties. MainWindow.LayerEditProperties
+         renamed to MainWindow.LayerEditProperties.
+         (MainWindow.ToggleLegend): Don't include map name in legend title.
+         (MainWindow.SetMap): Added the map name to the window title.
+         (MainWindow.LayerFillColor, MainWindow.LayerTransparentFill,
+         MainWindow.LayerOutlineColor, MainWindow.LayerNoOutline): Removed.
+         Functionality is found in the layer properties dialog.
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Only
+         draw visible groups.
+-04-09  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classgen.py: Modifications to allow simple
+         addition and selection of new color schemes.
+         (MonochromaticRamp): New. Generates a ramp between two colors.
+         (RedRamp): New. Generates a ramp of all red.
+         (GreenRamp): New. Generates a ramp of all green.
+         (BlueRamp): New. Generates a ramp of all blue.
+-04-09  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py (Classification.__deepcopy__):
+         Need to copy over field and fieldType attributes.
+         * Thuban/Model/table.py (Table.field_range): New. Retrive the
+         maximum and minimum values over the entire table for a given
+         field.
+         (Table.GetUniqueValues): New. Retrieve all the unique values
+         in the table for a given field.
+         * Thuban/UI/classgen.py: Renamed GenRangePanel to GenUniformPanel.
+         (GenUniquePanel): New. Controls to allow the user to select
+         which unique field values they would like in the classification.
+         (CustomRampPanel): Code that was in ClassGenDialog that allows
+         the user to select the properties for a custom ramp.
+         (ClassGenerator.GenUniformDistribution): Was called GenerateRanges.
+         * Thuban/UI/classifier.py: Removed a lot of debugging code.
+         (Classifier._SetClassification): Callback method so that the
+         class generator can set the classification in the grid.
+         (ClassGroupPropertiesCtrl): New. Encapsulates the drawing and
+         editing of a group properties class into a wxWindows control.
+         * Thuban/UI/dock.py: It was decided that if the user closes
+         a dockable window the window should simply hide itself. That
+         way if the user wants to show the dock again it appears in the
+         same place as it was when it was closed.
+         (DockableWindow.Destroy): Call renamed method OnDockDestroy().
+         (DockableWindow._OnButtonClose): Hide the window instead of
+         destroying it.
+         (DockableWindow._OnClose): Hide the window instead of
+         destroying it.
+         * Thuban/UI/legend.py (LegendTree): Use a private method to
+         consistently set the font and style of the text. Fixes RTbug #1786.
+         * Thuban/UI/mainwindow.py: Import just the Classifier class.
+-04-07  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (main_menu): Move the toggle_legend item
+         to the map module
+-04-07  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.ShowSessionTree): Removed in
+         favor of ToggleSessionTree
+         (MainWindow.ToggleSessionTree): New method to toggle visibility of
+         the session tree.
+         (MainWindow.SessionTreeShown): New method to return whether the
+         session tree is currently shown.
+         (MainWindow.ToggleLegend): New method to toggle visibility of the
+         legend
+         (MainWindow.ShowLegend): Implement in terms of ToggleLegend and
+         LegendShown
+         (MainWindow.LegendShown): New method to return whether the legend
+         is currently shown.
+         (_method_command): Add checked parameter so we can define check
+         menu items
+         (_has_tree_window_shown, _has_legend_shown): Use the appropriate
+         mainwindow methods.
+         (show_session_tree, show_legend commands): Removed.
+         (toggle_session_tree, toggle_legend commands): New commands to
+         toggle the visibility of the dialogs
+-04-07  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classgen.py: Fix Windows problem.
+         * Thuban/UI/dock.py: Fix Windows problem.
+         * Thuban/UI/mainwindow.py: Use False instead of false.
+         (MainWindow.ShowLegend): Remove unnecessary switch parameter.
+-04-07  Jonathan Coles   <[email protected]>
+         Since we now say that the order of the groups in a classification
+         matters, it makes sense to be able to manipulate that order. Most
+         of the changes to Thuban/Model/classification.py are to that end.
+         * Thuban/Model/classification.py (Classification.AppendGroup,
+         Classification.InsertGroup, Classification.ReplaceGroup,
+         Classification.RemoveGroup, Classification.GetGroup): Do as the
+         names imply.
+         (Classification.FindGroup): This was called GetGroup, but GetGroup
+         takes an index, while FindGroup takes a value.
+         (Classification.__deepcopy__): Copy all the groups, BUT NOT THE LAYER
+         REFERENCE. Currently there is a cyclic reference between the layer
+         and its classification. If the classification doesn't need to know
+         its owning layer we can change this, since it may make sense to be
+         able to use the same classification with different layers.
+         * Thuban/Model/load.py: Use Classification.AppendGroup(), not AddGroup()
+         * Thuban/UI/classgen.py: Use Classification.AppendGroup(),
+         not AddGroup()
+         * Thuban/UI/classifier.py: Now that we can depend on the order in
+         a Classification and have methods to manipulate that order we don't
+         need to use our own data structures in the grid. We can simply make
+         the grid/table access the information they need from a copy of
+         the classification object.
+         (Classifier._OnCloseBtn): Event handler for when the user clicks
+         'Close'. This is needed so if the user applies changes and then
+         continues to change the table the user has the option of discarding
+         the most recent changes and keeping what they applied.
+         * Thuban/UI/mainwindow.py: Put "Show Legend" and "Show Session Tree"
+         into the same group.
+         * extensions/thuban/wxproj.cpp (check_version): If Thuban is compiled
+         with a really old version of proj, PJ_VERSION won't even be defined.
+         If it isn't defined then just compile so that the function always
+         returns Py_False.
+         * test/test_classification.py: Fix tests to use the renamed methods.
+         Still need to write tests for the new methods.
+-04-04  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py (Classifier.__SelectField): Move the
+         call to SetSelection out of the method and before the call
+         to __SelectField in __init__. This prevents a recursion of events
+         when _OnFieldSelect is triggered by the user.
+-04-04  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Rename Color.None to
+         Color.Transparent.
+         (ClassGroupProperties.SetLineColori, ClassGroupProperties.SetFill):
+         Don't bother copying the color, since Colors are immutable.
+         * Thuban/Model/color.py, Thuban/Model/layer.py, Thuban/Model/load.py,
+         Thuban/UI/classifier.py, Thuban/UI/mainwindow.py,
+         Thuban/UI/renderer.py, Thuban/UI/view.py:
+         Rename Color.None to Color.Transparent.
+         * test/test_classification.py, test/test_load.py: Rename Color.None
+         to Color.Transparent.
+-04-04  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Fix assert calls.
+         (ClassGroupProperties.SetLineColor, ClassGroupProperties.SetFill):
+         Copy the color parameter rather than hold onto a reference.
+         * Thuban/Model/color.py (Color.__copy__, Color.__deepcopy): Copy
+         the color object.
+         (NoColor.__copy__, NoColor.__deepcopy): Return 'self' so that we
+         are sure there exists only one refernce to Color.None in the system.
+         This allows us to use 'is' rather than the comparision functions.
+         * Thuban/Model/save.py: Fix assert calls.
+         * Thuban/UI/classifier.py: Fix assert calls.
+         (ClassGrid._OnCellDClick): Call up to the classifier to open the
+         dialog to edit the groups properties.
+         (ClassGrid._OnCellResize): Make sure that the scollbars are drawn
+         correctly if a cell is resized.
+         (ClassTable.SetClassification): New. Changes the classification
+         that is in the table.
+         (ClassTable.__SetRow): Allow groups to be prepended.
+         (Classifier): New code for opening the EditProperties and
+         GenerateRanges dialogs.
+         (SelectPropertiesDialog.__GetColor): Only set the color in the
+         color dialog if the current color is not None.
+         * Thuban/UI/dock.py: Fix assert calls.
+         * Thuban/UI/legend.py: Fix assert calls.
+         * Thuban/UI/renderer.py: Fix assert calls.
+         * Thuban/UI/classgen.py (ClassGenDialog): Dialog for generating
+         classifications.
+         (GenRangePanel): Panel specific to range generation.
+         (GenSingletonPanel): Panel specific to singleton generation.
+         (ClassGenerator): Class responsible for actually generating
+         the classification from the data gathered in the dialog box.
+         (PropertyRamp): Generates properties whose values range from
+         a starting property to an ending property.
+-04-03  Bernhard Herzog  <[email protected]>
+         * test/support.py (print_garbage_information): New function that
+         prints information about still connected messages and memory
+         leaks.
+         (run_suite): Removed.
+         (run_tests): New function for use as a replacement of
+         unittest.main in the test_* files. This one calls
+         print_garbage_information at the end.
+         * test/runtests.py (main): Use support.print_garbage_information
+         * test/test_layer.py: Use support.run_tests instead of
+         unittest.main so we get memory leak information
+         (TestLayer.test_arc_layer, TestLayer.test_polygon_layer)
+         (TestLayer.test_point_layer, TestLayer.test_empty_layer)
+         (TestLayerLegend.test_visibility): Call the layer's Destroy method
+         to fix a memory leak.
+         * test/test_classification.py: Use support.run_tests instead of
+         unittest.main so we get memory leak information
+         (TestClassification.test_classification): Call the layer's Destroy
+         method to fix a memory leak.
+-04-02  Bernhard Herzog  <[email protected]>
+         * extensions/thuban/wxproj.cpp (check_version, check_version_gtk):
+         Handle the reference counts of the return value and errors in
+         PyArg_ParseTuple correctly.
+         * Thuban/UI/application.py (ThubanApplication.OpenSession): Make
+         sure the filename is absolute to avoid problems when saving the
+         session again
+         * Thuban/Model/table.py: Remove unnecessary import. Fix a typo.
+-04-01  Jonathan Coles   <[email protected]>
+         *  Thuban/UI/renderer.py (MapRenderer.draw_point_shape): Check
+         that there actually are points in the returned list of points
+         before trying to index into the list. The list may be empty if
+         the shape is a Null Shape.
+-04-01  Bernhard Herzog  <[email protected]>
+         * test/test_map.py: Don't use from <module> import *
+-04-01  Jonathan Coles   <[email protected]>
+         * Thuban/Model/session.py: Use LAYER_CHANGED instead of
+         LAYER_LEGEND_CHANGED
+         * Thuban/UI/dock.py (DockableWindow._OnButtonClose): Call
+         self.Destroy() to close the window after yesterday's changes.
+         * test/test_map.py, test/test_session.py: Fix messages that
+         are sent from maps and layers.
+-03-31  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py: Commented out some debugging statements.
+         (ClassDataPreviewer.Draw): Draw rectangles for polygon layers per
+         RTbug #1769.
+         * Thuban/UI/dock.py (DockableWindow.UnDock): Restore size and
+         position (although position doesn't work yet under GTK).
+         (DockableWindow.Destroy): New. Called when the window must be
+         closed. Namely needed when the DockFrame closes and must close
+         its children.
+         (DockFrame): Listen for EVT_CLOSE and destroy all children.
+         * Thuban/UI/legend.py (LegendPanel.Destroy): New. Cleans up
+         when then window is told to close.
+         (LegendTree._OnMsgLayerChanged): Fixes a seg fault bug. See
+         comment in source for more info.
+         * Thuban/UI/main.py: Show the legend by default when Thuban starts.
+         * Thuban/UI/mainwindow.py: Renamed OnClose to _OnClose for
+         symmetry with other such methods.
+         (MainWindow.ShowLegend): Show the legend docked by default.
+-03-28  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py: Support for highlighting a specific
+         group within the grid when the classification dialog is opened.
+         Also contains a lot of debugging printouts which will later
+         be removed.
+         * Thuban/UI/dock.py: Complete rework on the dock code so that
+         that it is fairly removed from the rest of the Thuban application.
+         It is easy to add new docks which the rest of the program having
+         to be aware of them.
+         * Thuban/UI/legend.py: Modifications to support selecting a
+         specific group in the classification dialog. Changed how layers
+         are drawn when the layer is visible/invisible.
+         * Thuban/UI/mainwindow.py: Removed legend specific code and
+         replaced it with calls to the new dock code.
+         * Thuban/UI/renderer.py (MapRenderer.__init__): Added assert
+         to check if scale > 0. Trying to track down a divide by zero.
+-03-26  Jonathan Coles   <[email protected]>
+         * Thuban/UI/legend.py: Removed unnecessary LegendDialog class.
+         (LegendPanel): Removed _OnDock()/_OnUnDock() methods which are
+         now part of DockableWindow.
+         (LegendPanel.DoOnSelChanged): Select the current layer in the
+         map.
+         (LegendTree._OnSelChanged): Call LegendPanel.DoOnSelChanged()
+         with the selected layer and/or group.
+-03-26  Jonathan Coles   <[email protected]>
+         This putback contains the code for dockable windows. There is
+         no support in wxWindows as of this date for windows that can
+         attach themselves to other windows.
+         The current model contains a DockableWindow which has a parent
+         window for when it is detached and a dock window that it puts
+         its contents in when it is docked. The contents of a DockableWindow
+         must be a DockPanel. DockPanel itself derives from wxPanel.
+         * Thuban/Model/layer.py (Layer.ClassChanged): Send a LAYER_CHANGED
+         message, not a LAYER_LEGEND_CHANGED message.
+         * Thuban/Model/map.py (Map): Forward LAYER_CHANGED messages.
+         * Thuban/UI/classifier.py (Classifier.__init__): Use wxADJUST_MINSIZE
+         as one of the style properties for the fieldTypeText item to
+         be sure that its size is correct when the text changes.
+         * Thuban/UI/dock.py: New. Classes for the DockPanel and
+         DockableWindow.
+         * Thuban/UI/legend.py: Added some more buttons and made the
+         LegendPanel a DockPanel.
+         * Thuban/UI/mainwindow.py: Added sash windows to the main window
+         and supporting functions for manipulating the sashes.
+         (MainWindow.ShowLegend): Create a DockableWindow with the
+         LegendPanel as the contents.
+         * Thuban/UI/messages.py: Added DOCKABLE_* messages
+         * Thuban/UI/view.py (MapCanves.SetMap): Listen for LAYER_CHANGED,
+         not LAYER_LEGEND_CHANGED, messages.
+-03-25  Jonathan Coles   <[email protected]>
+         * setup.py: Added custom script bdist_rpm_build_script so that
+         when the rpm is built the path to wx-config is correct.
+         * setup.cfg: Added line saying to use the custom build script
+-03-20  Jonathan Coles   <[email protected]>
+         Initial implementation of the Legend.
+         * Thuban/UI/legend.py: New. Creates a window that shows the map's
+         Legend information and allows the user to add/modify classifications
+         and how the layers are drawn on the map.
+         * setup.py: New command 'build_docs' which currently uses
+         happydoc to generate html documentation for Thuban.
+         * Thuban/Model/classification.py (ClassGroup.GetDisplayText): New.
+         Returns a string which is appropriately describes the group.
+         * Thuban/Model/layer.py (Layer.SetClassification): Generate a
+         LAYER_CHANGED event instead of a LAYER_LEGEND_CHANGED event.
+         * Thuban/Model/map.py (Map): Rename messages and use new, more
+         specific, messages.
+         * Thuban/Model/messages.py: New message to indicate that a layer's
+         data has changed (LAYER_CHANGED). New map messages to indicate
+         when layers have been added/removed/changed or if the stacking order
+         of the layers has changed.
+         * Thuban/Model/session.py: Rename and use new messages.
+         * Thuban/UI/classifier.py: Remember if any changes have actually
+         been applied so that if the dialog is cancelled without an application
+         of changes we don't have to set a new classification.
+         (ClassDataPreviewer): Pulled out the window specific code and put it
+         ClassDataPreviewWindow. ClassDataPreviewer can then be used to draw
+         symbols on any DC.
+         * Thuban/UI/mainwindow.py: New code to open the legend.
+         * Thuban/UI/view.py: Use new message names.
+-03-19  Jonathan Coles   <[email protected]>
+         * Thuban/UI/main.py (verify_versions): New. Checks the versions
+         of Python, wxPython, and some other libraries.
+         * extensions/thuban/wxproj.cpp (check_version): Checks the given
+         version against what wxproj was compiled with.
+         (check_version_gtk): If wxproj was compiled with gtk then check
+         the given version against the version of the gtk library
+         currently being used.
+-03-14  Bernhard Herzog  <[email protected]>
+         * test/test_command.py: Run the tests when the module is run as a
+         script
+-03-14  Bernhard Herzog  <[email protected]>
+         Implement selection of multiple selected shapes in the same layer:
+         - Introduce a new class to hold the selection. This basically
+           replaces the interactor which was nothing more than the
+           selection anyway. A major difference is of course that the new
+           selection class supports multiple selected shapes in one layer
+         - Move the object that represents the selection from the
+           application to the canvas. The canvas is a better place than the
+           application because the selection represents which shapes and
+           layer of the map displayed by the canvas are selected and
+           affects how the map is drawn.
+         - Make the selection and its messages publicly available through
+           the mainwindow.
+         - The non-modal dialogs do not get a reference to the interactor
+           anymore as they can simply refer to their parent, the
+           mainwindow, for the what the interactor had to offer.
+         * Thuban/UI/selection.py: New module with a class to represent the
+         selection.
+         * Thuban/UI/messages.py (SELECTED_TABLE, SELECTED_MAP): Remove
+         these unused messages
+         * Thuban/UI/application.py (ThubanApplication.OnInit)
+         (ThubanApplication.OnExit, ThubanApplication.SetSession): The
+         interactor is gone now.
+         (ThubanApplication.CreateMainWindow): There is no interactor
+         anymore so we pass None as the interactor argument for now for
+         compatibility.
+         * Thuban/UI/view.py (MapCanvas.delegated_messages)
+         (MapCanvas.Subscribe, MapCanvas.Unsubscribe): In Subscribe and
+         Unsubscribe, delegate messages according to the delegated_messages
+         class variable.
+         (MapCanvas.__getattr__, MapCanvas.delegated_methods): Get some
+         attributes from instance variables as described with the
+         delegated_methods class variable.
+         (MapCanvas.__init__): New instance variable selection holding the
+         current selection
+         (MapCanvas.do_redraw): Deal with multiple selected shapes. Simply
+         pass them on to the renderer
+         (MapCanvas.SetMap): Clear the selection when a different map is
+         selected.
+         (MapCanvas.shape_selected): Simple force a complete redraw. The
+         selection class now takes care of only issueing SHAPES_SELECTED
+         messages when the set of selected shapes actually does change.
+         (MapCanvas.SelectShapeAt): The selection is now managed in
+         self.selection
+         * Thuban/UI/mainwindow.py (MainWindow.delegated_messages)
+         (MainWindow.Subscribe, MainWindow.Unsubscribe): In Subscribe and
+         Unsubscribe, delegate messages according to the delegated_messages
+         class variable.
+         (MainWindow.delegated_methods, MainWindow.__getattr__): Get some
+         attributes from instance variables as described with the
+         delegated_methods class variable.
+         (MainWindow.__init__): The interactor as ivar is gone. The
+         parameter is still there for compatibility. The selection messages
+         now come from the canvas.
+         (MainWindow.current_layer, MainWindow.has_selected_layer):
+         Delegate to the the canvas.
+         (MainWindow.LayerShowTable, MainWindow.Classify)
+         (MainWindow.identify_view_on_demand): The dialogs don't need the
+         interactor parameter anymore.
+         * Thuban/UI/tableview.py (TableFrame.__init__)
+         (LayerTableFrame.__init__, LayerTableFrame.OnClose)
+         (LayerTableFrame.row_selected): The interactor is gone. It's job
+         from the dialog's point of view is now done by the mainwindow,
+         i.e. the parent. Subscribe to SHAPES_SELECTED instead
+         of SELECTED_SHAPE
+         * Thuban/UI/dialogs.py (NonModalDialog.__init__): The interactor
+         is gone. It's job from the dialog's point of view is now done by
+         the mainwindow, i.e. the parent.
+         * Thuban/UI/classifier.py (Classifier.__init__): The interactor is
+         gone. It's job from the dialog's point of view is now done by the
+         mainwindow, i.e. the parent.
+         * Thuban/UI/tree.py (SessionTreeView.__init__): The interactor is
+         gone. It's job from the dialog's point of view is now done by the
+         mainwindow, i.e. the parent.
+         (SessionTreeCtrl.__init__): New parameter mainwindow which is
+         stored as self.mainwindow. The mainwindow is need so that the tree
+         can still subscribe to the selection messages.
+         (SessionTreeCtrl.__init__, SessionTreeCtrl.unsubscribe_all)
+         (SessionTreeCtrl.update_tree, SessionTreeCtrl.OnSelChanged): The
+         selection is now accessible through the mainwindow. Subscribe to
+         SHAPES_SELECTED instead of SELECTED_SHAPE
+         * Thuban/UI/identifyview.py (IdentifyView.__init__): Use the
+         SHAPES_SELECTED message now.
+         (IdentifyView.selected_shape): Now subscribed to SHAPES_SELECTED,
+         so deal with multiple shapes
+         (IdentifyView.__init__, IdentifyView.OnClose): The interactor is
+         gone. It's job from the dialog's point of view is now done by the
+         mainwindow, i.e. the parent.
+         * Thuban/UI/controls.py (RecordListCtrl.fill_list): The second
+         parameter is now a list of shape ids.
+         (RecordTable.SetTable): The second parameter is now a list of
+         indices.
+         * Thuban/UI/renderer.py (ScreenRenderer.RenderMap): Rename the
+         selected_shape parameter and ivar to selected_shapes. It's now a
+         list of shape ids.
+         (MapRenderer.draw_label_layer): Deal with multiple selected
+         shapes. Rearrange the code a bit so that the setup and shape type
+         distinctions are only executed once.
+         * test/test_selection.py: Test cases for the selection class
+-03-11  Jonathan Coles   <[email protected]>
+         * Thuban/Model/load.py: Temporary fix so that the xml reader
+         doesn't cause Thuban to crash.
+         * Thuban/Model/layer.py: Handle the cyclic references between
+         a layer and its classification better, and be sure to disconnect
+         the classification from the layer when the layer is destroyed
+         so that we don't maintain a cyclic reference that may not be
+         garbage collected.
+         * Thuban/Model/classification.py: See comment for layer.py.
+-03-12  Jan-Oliver Wagner <[email protected]>
+         * HOWTO-Release: New. Information on the steps for releasing
+         a new version of Thuban.
+-03-11  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py: Add normal border to SelectPropertiesDialog.
+         Use True instead of true.
+         (Classifier): Should have a single panel in which all the controls lie.
+         * Thuban/UI/proj4dialog.py: Add normal border.
+         * Thuban/UI/tree.py: Fixed problem with bad item images under Windows.
+         * Thuban/UI/mainwindow.py: Use True instead of true.
+         * setup.py: Update some definitions to use wxWindows2.4 files
+         * Data/iceland_sample_class.thuban: Fixed file so that the
+         field_type information is present.
+-03-10  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py (Classifier.__init__): Make the
+         field type label grow so that when the text changes the
+         size is updated correctly. This may be a wxWindows bug.
+-03-10  Jonathan Coles   <[email protected]>
+         * Thuban/UI/application.py: Changed SESSION_CHANGED to
+         SESSION_REPLACED.
+         * Thuban/UI/classifier.py: Wrap text with _().
+         (ClassGrid.CreateTable): Set dimensions and size hints here,
+         instead of in Reset, so we only set the size once.
+         * Thuban/UI/dialogs.py: Don't need Shutdown(); just use Close()!
+         * Thuban/UI/mainwindow.py (MainWindow.prepare_new_session):
+         Call Close() instead of Shutdown().
+         * Thuban/UI/messages.py: Changed SESSION_CHANGED to SESSION_REPLACED.
+         * Thuban/UI/tree.py: Changed SESSION_CHANGED to SESSION_REPLACED.
+         Go back to using OnClose() instead of Shutdown().
+-03-10  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py (Classifier): SelectField() needed
+         to know the old field index as well as the new one.
+-03-10  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py (Classifier): Use __SelectField()
+         to correctly set the table information and call this from
+         __init__ and from _OnFieldSelect so that all the information
+         is up to date when the dialog opens and when a field is changed.
+-03-10  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py (Classification): Don't use
+         layer's message function directly, use the ClassChanged() method
+         when then classification changes. SetField/SetFieldType/SetLayer
+         must keep the information about field name and field type in
+         sync when an owning layer is set or removed.
+         * Thuban/Model/layer.py: Added ClassChanged() so that the
+         classification can tell the layer when its data has changed.
+         (Layer.SetClassification): Accepts None as an arguement to
+         remove the current classification and correctly handles
+         adding a new classification.
+         * Thuban/Model/load.py: Comment out print statement
+         * test/test_classification.py, test/test_save.py: New and
+         improved tests.
+-03-07  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Implemented __copy__ and
+         __deepcopy__ for ClassGroup* and ClassGroupProperites so
+         they can easily be copied by the classifier dialog.
+         (ClassGroupProperites.__init__): The default line color should
+         have been Color.Black.
+         * Thuban/UI/classifier.py: Setting and Getting table values now
+         uses a consistent set of functions.
+         (Classifier): Now non-modal. Has field type label which changes
+         as the field changes. Keep track of buttons in a list so that
+         we can enable/disable the buttons when the None field is selected.
+         (SelectPropertiesDialog): Add buttons to make the colors transparent.
+         * Thuban/UI/dialogs.py (NonModalDialog.Shutdown): New method which
+         does what OnClose did, but can be called by the application to
+         close a window. Needed when a session changes, and we have to
+         close the classifier windows.
+         * Thuban/UI/mainwindow.py (MainWindow.prepare_new_session):
+         Shuts down open dialogs. Used when a new session is created
+         or a session is opened.
+         (MainWindow.SaveSession): Should only call application.SaveSession()
+         if we don't call SaveSessionAs first.
+         (MainWindow.Classify): Allow different classifier dialogs for
+         different layers.
+         * Thuban/UI/tree.py (SessionTreeView): Remove OnClose and let
+         the parent class handle it. Add Shutdown() to unsubscibe from
+         event notification and call the parent Shutdown(). This was
+         necessary so the application can close the tree window.
+-03-06  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Minor documentation changes,
+         Addition of __eq__ and __ne__ methods.
+         (Classification.SetLayer): prevent recursion between this method
+         and Layer.SetClassification().
+         * Thuban/Model/color.py: Addition of __eq__ and __ne__ methods.
+         * Thuban/Model/layer.py (SetClassification): prevent recursion
+         between this method and Classification.SetLayer().
+         * test/test_classification.py, test/test_load.py,
+         test/test_session.py: Fixed and added tests for the classification
+         classes.
+-03-06  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/classifier.py (ClassGrid.__init__)
+         (ClassGrid.CreateTable): Move the SetSelectionMode call to
+         CreateTable because otherwise it triggers an assertion in
+         wxPython/wxGTK 2.4.
+-03-05  Jonathan Coles   <[email protected]>
+         * Thuban/common.py: Move FIELDTYPE constants back to table.py.
+         * Thuban/Model/load.py: import FIELDTYPE constants from table.
+         * Thuban/UI/classifier.py: import FIELDTYPE constants from table.
+         * Thuban/Model/table.py: Put FIELDTYPE constants back.
+-03-05  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py: Added class documentation.
+         Fixed RTbug #1713, #1714. Added Move[Up|Down] buttons.
+         Store just the groups in the table and generate the other
+         column information when it is requested. Add "None" field
+         to pull-down to select no classification.
+         * Thuban/common.py: Moved FIELDTYPE constants from table.py
+         (Str2Num): Only catch ValueError exceptions.
+         * Thuban/Model/classification.py: Class documentation. Renaming
+         of methods with Stroke to Line. Groups are stored in a single
+         list with the default as the first element. Groups are searched
+         in the order they appear in the list.
+         * Thuban/Model/color.py: Documentation.
+         * Thuban/Model/layer.py (Layer): Add GetFieldType to retreive
+         the kind of data represented by a field.
+         * Thuban/Model/load.py (ProcessSession): Use proper string
+         conversion function; fixes RTbug #1713.
+         * Thuban/Model/save.py (Saver): Store field type information.
+         * Thuban/Model/table.py: Put FIELDTYPE constants in common.py.
+         (Table): Add field_info_by_name() to retrieve field information
+         by specifying the field name, not the number.
+         * Thuban/UI/mainwindow.py: Function name changes.
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Only
+         get the layer classification once. Don't try to classify
+         values when the field is None: just use the default properties.
+         * Thuban/UI/view.py: Function name changes.
+         * Doc/thuban.dtd: Add field_type attribute to a classification.
+-03-04  Bernhard Herzog  <[email protected]>
+         * Doc/thuban.dtd: Use correct syntax for optional attributes. Make
+         the fill and stroke layer attributes optional with suitable
+         default values. Add the stroke_width layer attribute. Use correct
+         syntax for empty elements. Make the attribute list for labels
+         refer to the label element.
+-03-04  Bernhard Herzog  <[email protected]>
+         * setup.py (thuban_build_py.build): Add a comment about distutils in
+         Python 2.3 containing some of the functionality we implement in
+         setup.py ourselves.
+         * Thuban/UI/classifier.py (ClassGrid.__init__): Set the table
+         before the selection mode. Doing it the other way round triggers
+         an assertion in wxWindows.
+         * Thuban/Model/save.py (escape): Fix typo in doc-string
+         * Thuban/Model/classification.py: Remove unnecessary wxPython
+         import
+-03-04  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py (ClassGroupRange.GetProperties):
+         Parameter 'value' should default to None.
+         * Thuban/UI/mainwindow.py: Use Layer.GetClassification() since
+         the class attribute __classification is now private.
+         * Thuban/UI/classifier.py (ClassGrid): Moved OnCellDClick() from
+         Classifier to ClassGrid. Added support for removing selected rows,
+         which including code for keeping track of when cells are selected,
+         and deselected.
+         (ClassTable): Support for added/removing rows. Fixed a problem
+         with __ParseInput whereby it would not allow strings (only numbers)
+         to be entered.
+         (Classifier): Added button and supporting code for removing
+         selected rows.
+-02-27  Jonathan Coles   <[email protected]>
+         * Thuban/common.py: Moved color conversion functions into
+         Thuban/UI/common.py.
+         (Str2Num): Now converts the float (not the string) to a long/int
+         so that an exception isn't thrown.
+         * Thuban/UI/common.py: Common functions used in several UI modules
+         * Thuban/Model/classification.py: Changed the class hierarchy
+         so that a Classification consists of Groups which return
+         Properties when a value matches a Group.
+         * Thuban/Model/layer.py: Fixed name resolution problem.
+         * Thuban/Model/load.py: Use new Classification and Group functions.
+         * Thuban/Model/save.py (Saver.write_attribs): Fixes a test case
+         failure.
+         (Saver.write_classification): Use new Classification and Group
+         functions.
+         * Thuban/UI/classifier.py: Changes to use new Classification and Group
+         functions. Fix to create a tuple with a single value instead of
+         simply returning the value.
+         * Thuban/UI/renderer.py: Use new Classification and Group functions.
+         Use common.py functions.
+         * Thuban/UI/tree.py: Use common.py functions.
+         * test/test_classification.py: Use new Classification and Group
+         classes.
+-02-24  Jonathan Coles   <[email protected]>
+         * Thuban/common.py (Color2wxColour, wxColour2Color): Conversion
+         functions from Thuban color objects to wxWindow colour objects.
+         * Thuban/Model/classification.py (Classification): Renamed
+         GetProperties() to GetClassData(). Used the new iterator
+         in TreeInfo().
+         (ClassIterator): Iterator implementation to iterate over the
+         ClassData objects in a classification object.
+         * Thuban/Model/save.py (Saver.write_classificaton): Uses
+         the new iterator to save the classification information.
+         * Thuban/UI/classifier.py (SelectPropertiesDialog): Support
+         for changing the stroke and fill colors and previewing the
+         changes.
+         * Thuban/UI/mainwindow.py (MainWindow.OpenSession,
+         MainWindow.SaveSessionAs): Text string changes so the dialogs
+         have more meaningful titles.
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Change
+         Classification method name from GetProperties to GetClassData.
+         * Thuban/UI/view.py (MapCanvas.find_shape_at): Use method calls
+         instead of accessing now non-existent class variables.
 -02-24  Bernhard Herzog  <[email protected]>
          * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Remove

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