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

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-revision 131 by bh,
Fri May  3 14:50:27 2002 UTC
+revision 1024 by jan,
Fri May 23 14:20:52 2003 UTC
 Line 1
+-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.
+         (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
+         unneeded Shape() call. Rendering is substantially faster without
+         it and it avoids some problems with broken shape files.
+-02-20  Frank Koormann   <[email protected]>
+         Force minimal size of identify and label dialogs. The autosizing
+         looked too ugly.
+         * Thuban/UI/controls.py (RecordListCtrl): Set minimal width for columns.
+         * Thuban/UI/labeldialog.py (LabelDialog.dialog_layout):
+         Set size of listctrl.
+         * Thuban/UI/identifyview.py (IdentifyView.__init__):
+         Set size of dialog.
+-02-19  Jonathan Coles   <[email protected]>
+         * test/test_classification.py, test/test_layer.py,
+         test/test_load.py, test/test_map.py, test/test_session.py:
+         Updated the tests to use the new functions that are in the
+         respective classes.
+         * Thuban/Model/classification.py (Classification):
+         Uses the new ClassData* classes. Modification messages are
+         passed up to the parent layer (if it exists).
+         (ClassData): New class to encapsulate the common data in each
+         classification property.
+         (ClassDataDefault): Represents the Default class. data.
+         (ClassDataPoint): Represents a single class. data point
+         (ClassDataRange): Represents a class. range
+         (ClassDataMap): Represents a class. map (unused).
+         * Thuban/Model/color.py: Added Color.None to represent something
+         with no color. Color.Black represents the color black.
+         (NoColor): Helper class derived from Color to represent something
+         with no color.
+         * Thuban/Model/layer.py (Layer): Removed references to fill, stroke,
+         stroke_width attributes. Made the 'classification' attribute private.
+         New methods for setting/getting the classification.
+         * Thuban/Model/load.py (ProcessSession): Use new methods on Layer
+         to get the classifcation and use the new ClassData* classes to
+         hold the classification data. Use Str2Num to convert numbers
+         properly.
+         * Thuban/Model/save.py (Saver): Use new Color and Classification
+         methods
+         * Thuban/UI/classifier.py (ClassGrid): New class to represent a
+         custom grid.
+         (ClassTable): Support for editing Values and Labels and for
+         changing what type (point or range) of data is stored in each
+         property based on how the user enters the data.
+         (Classifier): Support for saving the new classifications and
+         launching the dialog to edit a property.
+         (SelectPropertiesDialog): New class for editing the visual
+         properties of a classification (stroke color, width, and fill color)
+         (ClassPreviewer): Took the Draw method from ClassRenderer and
+         made most of it into this new class. Intend to use this class in
+         the SelectPropertiesDialog for previewing changes.
+         * Thuban/UI/renderer.py: Use new Color and Classification methods.
+         * Thuban/UI/tree.py: Formatting changes.
+         * Doc/thuban.dtd: Add 'label' element
+         * Thuban/common.py: New. Contains common routines used throughout
+         the code.
+         (Str2Num): Takes a string and converts it to the "best" type of
+         number.
+-02-14  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/view.py (MapCanvas.OnLeftUp): Make sure that the
+         dragging flag is always set to 0 even when the tool implementation
+         raises an exception
+-02-11  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.splash_screen): New
+         method to create a splash screen.
+         (ThubanApplication.ShowMainWindow): New. Show the main window.
+         Needed so the splash screen can display the mainwindow
+         (ThubanApplication.OnInit): Call the
+         new splash_screen method to determine whether the application
+         should display a splash screen. If it displays a splash screen do
+         not immediately show the main window.
+-02-11  Jonathan Coles  <[email protected]>
+         * Thuban/Model/classification.py: Added import line to fix
+         feature conflicts between running on python2.2 and python2.1.
+         * Thuban/UI/classifier.py (ClassTable): Didn't need to hang
+         onto the clinfo parameter, so removed the deepcopy().
+-02-10  Jonathan Coles  <[email protected]>
+         * Thuban/Model/save.py (Saver.open_element, Saver.close_element):
+         Added element_open variable to track opening and closing of tags
+         so that tags that don't span more than one line are closed with
+         /> instead of </tag_name>. Use the GetDefault*() methods of
+         the Classification class.
+         * Thuban/Model/classification.py (Classificaton): Added set and
+         get methods for the default data. The class also takes a layer
+         reference so that modification messages can be sent. Fixed the
+         methods to use the new ClassData class.
+         (ClassData): New class to encapsulate the classification data
+         * Thuban/Model/layer.py (Layer): Remove the
+         Set[Fill|Stroke|StrokeWidth]() methods. Code should call the
+         SetDefault*() methods on the layer's classification object.
+         (Layer.__init__): Use the new SetDefault*() methods in the
+         Classification class.
+         * Thuban/Model/load.py (ProcessSession): Use the new ClassData
+         object instead of a dictionary.
+         * Thuban/UI/classifier.py (ClassRenderer): New class to
+         draw the classifications in the dialog box's table.
+         (Classifier): Modified to use the ClassRenderer class.
+         * Thuban/UI/mainwindow.py (MainWindow): Use the SetDefault*()
+         methods of the Classification class.
+         * Thuban/UI/renderer.py (MapRenderer): Use the Get*() methods
+         of the ClassData class.
+         * test/test_classification.py, test/test_layer.py,
+         test/test_map.py, test/test_session.py: Fix the tests to work
+         with the above code changes.
+-02-03  Jonathan Coles  <[email protected]>
+         * Thuban/Model/classification.py (Classification): Added getNull()
+         to return the NullData reference
+         * Thuban/Model/layer.py (Layer.SetFill, Layer.SetStroke,
+         Layer.SetStrokeWidth): Modified these functions to change the
+         null data in the classification rather than keep these values
+         directly in the Layer class. Menu options to change these values
+         work again.
+-01-28  Jonathan Coles  <[email protected]>
+         * Thuban/UI/classifier.py (Classifier): Resolved merging conflicts.
+         Fixed crashing problem on some systems. Dialog box shows
+         classification data.
+         * Thuban/UI/tree.py (SessionTreeCtrl.add_items): Handle drawing
+         Colors in the tree view.
+         * Thuban/Model/layer.py (Layer.TreeInfo): Added a call to build
+         the tree info for classifications. Commented out unnecessary lines.
+         * Thuban/Model/classification.py (Classification.TreeInfo): New
+         function to add information about the classification into the
+         tree view.
+-01-27  Jan-Oliver Wagner <[email protected]>
+         * Thuban/__init__.py (_): New.
+         * Thuban/Model/classification.py, Thuban/Model/extension.py,
+         Thuban/Model/layer.py, Thuban/Model/load.py, Thuban/Model/map.py,
+         Thuban/Model/session.py, Thuban/UI/application.py,
+         Thuban/UI/classifier.py, Thuban/UI/context.py, Thuban/UI/controls.py,
+         Thuban/UI/identifyview.py, Thuban/UI/labeldialog.py,
+         Thuban/UI/mainwindow.py, Thuban/UI/menu.py, Thuban/UI/proj4dialog.py,
+         Thuban/UI/renderer.py, Thuban/UI/tree.py, Thuban/Lib/connector.py,
+         Thuban/Lib/fileutil.py: Replace user string by _() for i18n.
+-01-27  Jonathan Coles  <[email protected]>
+         * Thuban/Model/layer.py: Classification initialization calls.
+         * Thuban/Model/classification.py: Created class to encapsulate
+         a layer classification. Supports specific data points and
+         ranges.
+         * Thuban/Model/load.py: Added support for loading classification
+         information.
+         * Thuban/Model/save.py: Added support for saving classification
+         information.
+         * Thuban/UI/classifier.py: Initial class for a dialog box for
+         specifying classification information.
+         * Thuban/UI/mainwindows.py: Support for opening the classifier
+         dialog.
+         * Thuban/UI/renderer.py: Support for drawing a layer with the
+         classification information.
+         * Data/iceland_sample_class.thuban: iceland_sample with
+         classification data.
+         * test/test_classification: Tests for the Classification class.
+-12-09  Bernhard Herzog  <[email protected]>
+         * test/test_command.py: New. Tests for the command classes.
+         * Thuban/UI/command.py (ToolCommand): New class for tool commands.
+         (Command.IsTool): New method to distinguish between command
+         switching tools and other commands.
+         * Thuban/UI/view.py (MapCanvas.SelectTool): New method to select
+         the tool to avoid direct assignments to instance variables
+         (MapCanvas.ZoomInTool, MapCanvas.ZoomOutTool, MapCanvas.PanTool)
+         (MapCanvas.IdentifyTool, MapCanvas.LabelTool): Use SelectTool to
+         change the tool
+         * Thuban/UI/mainwindow.py (MainWindow.update_command_ui): If an
+         active tool's command turns insensitive, disable the tool.
+         (_tool_command): Use the new ToolCommand class
+         * Examples/simple_extensions/simple_tool.py (simple_tool): Use the
+         SelectTool method to change the tool
+         (iconfile): Use the ToolCommand class
+-12-03  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/tree.py (SessionTreeCtrl.normalize_selection): Handle
+         the case of selected items that are not children of Layers or Maps
+         properly. Previously this bug would trigger an assertion in
+         wxWindows.
+-11-06  Frank Koormann  <[email protected]>
+         * Thuban/UI/mainwindow.py: Altered the order of tools in the
+         toolbar: First now are all navigation tools (Zoom In/Out, Pan,
+         Full Extent).
+-10-23  Bernhard Herzog  <[email protected]>
+         * setup.py (setup call): version now 0.1.3
+         * MANIFEST.in: Add the files in test/
+         * test/README: Add note about tests requiring the iceland data
+         * Thuban/UI/mainwindow.py (MainWindow.About): Add 2002 to
+         copyright notice.
+-10-18  Bernhard Herzog  <[email protected]>
+         * test/test_map.py
+         (TestMapWithContents.test_projected_bounding_box): Use an explicit
+         epsilon.
+         * test/support.py (FloatComparisonMixin.assertFloatEqual)
+         (FloatComparisonMixin.assertFloatSeqEqual): give a more useful
+         message if the assertion fails and don't return the return value
+         of self.assert_. In assertFloatSeqEqual the return meant that not
+         all items of the sequence were compared.
+-09-20  Bernhard Herzog  <[email protected]>
+         * test/test_fileutil.py: New. Test cases for Thuban.Lib.fileutil
+         * Thuban/Lib/fileutil.py: Fixup some whitespace and typos
+         * test/test_map.py (TestMapWithContents.test_tree_info): Create
+         the string with the bounding box on the fly because of platform
+         differences in the way %g is handled.
+         * test/test_layer.py (TestLayer.test_empty_layer): Create an empty
+         DBFfile too because Thuban layers can't yet cope missing DBF
+         files.
+-09-20  Bernhard Herzog  <[email protected]>
+         * test/test_menu.py: Use initthuban instead of
+         add_thuban_dir_to_path to initialize Thuban.
+         * test/support.py (FloatComparisonMixin.assertFloatEqual): New.
+         Mixin class for float comparisons
+         (SubscriberMixin): New. Mixin class to test messages sent through
+         the Connector class
+         * test/README: Fix a typo and add the -v flag to the command for
+         individual tests
+         * test/test_session.py: New. Test cases for Thuban.Model.session
+         * test/test_proj.py: New. Test cases for Thuban.Model.proj
+         * test/test_map.py: New. Test cases for Thuban.Model.map
+         * test/test_layer.py: New. Test cases for Thuban.Model.layer
+         * test/test_label.py: New. Test cases for Thuban.Model.label
+         * test/test_connector.py: New. Test cases for Thuban.Lib.connector
+         * test/test_color.py: New. Test cases for Thuban.Model.color
+         * test/test_base.py: New. Test cases for Thuban.Model.base
+-09-13  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py (Session.forwarded_channels): Forward
+         the CHANGED channel too.
+         * Thuban/Model/map.py (Map.forwarded_channels): Forward the
+         CHANGED channel too.
+         (Map.__init__): Call the Modifiable constructor as well.
+         * Thuban/Model/base.py (Modifiable.UnsetModified): Issue a CHANGED
+         event if the modified flag changes.
+         (Modifiable.changed): Tweak the doc-string.
+         * Thuban/UI/mainwindow.py (MainWindow.view_position_changed)
+         (MainWindow.set_position_text): Put the code that puts the text
+         with the mouse position into the status bar into the new method
+         set_position_text so that it can overwritten in derived classes.
+-09-12  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.RunMessageBox): Center the
+         message box on the main window.
+-09-11  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py: Underline the 'x' in "Exit" instead of
+         the 'E' because it's less likely to interfere with other menu
+         entries.
+         (MainWindow.build_menu): remove an incorrect comment.
+-09-10  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.Map): New.
+         (_tool_command): Add sensitive parameter
+         (_has_visible_map): Sensitivity callback to tools and other
+         commands that require a visible map. Use it in map_zoom_in_tool,
+         map_zoom_out_tool, map_pan_tool, map_identify_tool, map_label_tool
+         and map_full_extent
+-09-06  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.OnClose): Unsubscribe
+         VIEW_POSITION
+-09-04  Frank Koormann  <[email protected]>
+         * Resources/Bitmaps/fullextent.xpm: Updated Icon (removed "potatoe")
+-09-02  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/view.py: Get rid of the idle redraw. This is done by
+         wxWindows already and our implementation doesn't work correctly
+         with wxGTK 2.3:
+         (MapCanvas.__init__): Remove the instance variable
+         (MapCanvas.OnPaint): Always call do_redraw when there's a map to
+         be drawin
+         (MapCanvas.OnIdle): Removed.
+         * Thuban/UI/view.py (MapCanvas.unprojected_rect_around_point): Add
+         a parameter to determine the size of the rectangle.
+         (MapCanvas.find_shape_at): Create the box around the point on a
+         layer by layer basis and make the size depend on the shape type.
+         This solves a problem with the selection of point shapes at the
+         border of the layer's bounding box
+-08-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.CanRemoveLayer): New method
+         for the sensitivity  of remove layer.
+         (_can_remove_layer): New. Sensitivity callback for remove layer
+         (Command layer_remove): Use _can_remove_layer
+         * Thuban/Model/map.py (Map.CanRemoveLayer): New method to
+         determine whether a given layer can be deleted.
+         * Thuban/UI/view.py (MapCanvas.__init__, MapCanvas.OnPaint)
+         (MapCanvas.do_redraw): Get rid of the unused update_region
+         instance variable
+         * Thuban/UI/view.py: Add/update some doc-strings.
+         * test/: new subdirectory with a bunch of unit tests.
+         * test/README, test/test_table.py, test/test_save.py,
+         test/test_menu.py, test/test_load.py: Initial set of tests and
+         brief instructions on how to run them
+-08-29  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/renderer.py (ScreenRenderer.draw_shape_layer): Handle
+         arcs with multiple parts.
+         * Thuban/UI/view.py (ZoomInTool.MouseUp, ZoomOutTool.MouseUp):
+         Handle degenrate rectangles.
+         * Thuban/Model/table.py: Make writing records work correctly:
+         (Table.__init__): Keep track of whether the DBF is open for
+         writing
+         (Table.write_record): Open the DBF file for writing when necessary
+-08-27  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/table.py (Table.write_record, Table.__init__): Open
+         dbf files only for reading by default. Use a new writable dbf
+         object for writing.
+-08-26  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py: Refactor the context creation:
+         (MainWindow.Context): New method to return a context
+         (MainWindow.invoke_command, MainWindow.update_command_ui): Use the
+         new method
+         * Thuban/UI/tableview.py (TableGrid, LayerTableGrid): Split the
+         layer table specific code from TableGrid into LayerTableGrid
+         (TableFrame, LayerTableFrame): Split the layer table specific code
+         from TableFrame into LayerTableFrame
+         (LayerTableGrid.select_shape): Remove a debug print
+         * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Use the
+         LayerTableFrame
+-08-23  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.__init__): Make sure we have an
+         absolute filename.
+-08-22  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/table.py (Table.write_record): New method to write
+         records.
+         (Table.__init__): Open the DBF file for writing too.
+         * Thuban/UI/controls.py (RecordTable.SetValue): Write the value
+         into the underlying table.
+         * extensions/shapelib/shapefil.h (DBFCommit),
+         extensions/shapelib/dbfopen.c (DBFCommit): New API function to
+         commit any changes made to the DBF file.
+         * Thuban/UI/mainwindow.py (make_check_current_tool)
+         (_tool_command): Put the code that generates the "checked"
+         callback into a separate function so that we can reuse it
+         elsewhere
+         * Thuban/Model/save.py (Saver): New class to handle serializing a
+         session into an XML file. The main reason to introduce a class is
+         that applications built on Thuban can derive from it so that they
+         can save additional information in a session file.
+         (save_session): Delegate almost all the work to the Saver class.
+         Rename the filename argument to file because it may be a file like
+         object now.
+         * Thuban/Model/load.py: Get rid of the Python 1.5.2 compatibility
+         code. Remove the little test code which would be executed when the
+         module is run as a script which didn't work anymore since it can't
+         import the other Thuban modules.
+         (ProcessSession, load_session): Refactor the ProcessSession to
+         have one method for each element start and end tag so that derived
+         classes can easily override the processing of individual tags.
+         Also, always parse with namespaces enabled because applications
+         built on top of Thuban will likely use namespaces if they extend
+         the session file format.
+-08-21  Bernhard Herzog  <[email protected]>
+         * setup.py (ThubanInstall.run): Don't repr install_lib_orig
+         because thubaninit_contents will do it for us.
+-08-16  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/mainwindow.py: menu item 'show session tree' now disable if
+         tree window already open
+-08-15  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.Destroy): Call the unboundd method
+         with self.
+         * Thuban/UI/view.py (MapCanvas.OnLeftUp): Only release the mouse
+         when we have actually captured it.
+         * Thuban/Model/layer.py (Layer.Destroy): New. Explicitly close the
+         shapefile and destroy the table.
+         * Thuban/Model/table.py (Table.Destroy): New. Close the DBF file.
+-08-14  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/controls.py (RecordTable.__init__): Remove the unused
+         instance variable columns
+         (RecordTable.GetTypeName): row and col may be negative in some
+         cases.
+         * setup.py (InstallLocal.initialize_options)
+         (InstallLocal.finalize_options, InstallLocal.user_options): New
+         option create-init-file to build a thubaninit.py when running
+         install_local
+         (InstallLocal.run): Create the thubaninit.py module when requested
+         (thubaninit_contents): Split the template into several parts and
+         create a new function thubaninit_contents that creates the
+         contents of a thubaninit module.
+         (ThubanInstall.run): Use the new function to create the thubaninit
+         module.
+-07-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.OnExit): Do some
+         cleanup.
+         (ThubanApplication.MainLoop): Extend to automatically call OnExit.
+         * Thuban/Model/session.py (Session.Destroy): Don't bypass the
+         direct base class' Destroy method.
+         * Thuban/Model/map.py (Map.ClearLayers): New method to delete all
+         layers.
+         (Map.Destroy): Destroy the label_layer as well and call the
+         inherited Desatroymethod first so that no more messages are
+         issued.
+         (Map.RaiseLayer, Map.LowerLayer): Only issue LAYERS_CHANGED
+         message if the stacking order actually has changed. Add
+         doc-strings.
+         (Map.BoundingBox): Correct the doc-string.
+         (Map.AddLayer, Map.RemoveLayer, Map.Layers, Map.HasLayers)
+         (Map.ProjectedBoundingBox, Map.SetProjection): Add doc-strings.
+         * Thuban/Model/label.py (LabelLayer.ClearLabels): New to delete
+         all labels.
+-07-29  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/map.py (Map.subscribe_layer_channels)
+         (Map.unsubscribe_layer_channels): Put the code that (un)subscribes
+         to a layer's channels into separate methods.
+         (Map.RemoveLayer, Map.AddLayer): Call the new methods
+         (Map.Destroy): Unsubscribe from a layer's channels before
+         destroying it.
+         * Thuban/UI/view.py (MapCanvas.find_shape_at): Change the
+         selected_layer parameter to searched_layer which is the layer to
+         search in.
+         (MapCanvas.SelectShapeAt): New parameter layer to restrict the
+         search to that layer. Return the selected layer and shape.
+         * Examples/simple_extensions/simple_tool.py (simple_tool): Fix a
+         typo
+-07-24  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.create_session):
+         Extend the doc string.
+         (ThubanApplication.subscribe_session)
+         (ThubanApplication.unsubscribe_session): New methods to
+         subscribe/unsubscribe to/from session channels.
+         (ThubanApplication.SetSession): Call the new methods here.
+         (ThubanApplication.maps_changed, ThubanApplication.set_map):
+         Renamed set_map to maps_changed. Its now a subscriber for
+         MAPS_CHANGED.
+         * Thuban/UI/view.py (ZoomOutTool.MouseUp): Use the correct
+         x-coordinate in case of simple clicks
+         * Thuban/Model/base.py (Modifiable.changed): Apply the args tuple,
+         don't pass it as a parameter
+         * Thuban/Model/session.py (Session.RemoveMap): New
+         * Thuban/UI/mainwindow.py (MainWindow.__init__): Turn the initial
+         window size into a parameter.
+-07-23  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/menu.py (Menu.item_index): Also search for menus not
+         just commands.
+         * Thuban/UI/mainwindow.py (MainWindow.__init__): Change the
+         parameter list a bit to allow setting the window title and the
+         initial message in the status bar. Update the callers.
+         * Thuban/UI/application.py (ThubanApplication.OnInit)
+         (ThubanApplication.CreateMainWindow): Put the mainwindow
+         instantiation into a separate method so that it can be overridden
+         by a subclass.
+-07-19  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py: Issue a CHANGED message every time
+         another changed message is issued to make it easier to get
+         notified of changes.
+         (Session): Update the doc string
+         (Session.forward): Issue changed-events as CHANGED as well.
+         (Session.changed): Overwrite the inherited version to issue
+         CHANGED events as well.
+         * Thuban/UI/tree.py: We can now simply subscribe to the session's
+         CHANGED channel to be informed of changes.
+         (SessionTreeCtrl.session_channels): Not needed any longer.
+         (SessionTreeCtrl.unsubscribe_all, SessionTreeCtrl.session_changed):
+         Only have to (un)subscribe CHANGED
+         * Thuban/Model/map.py (Map.TreeInfo): Deal better with empty maps.
+         * Thuban/UI/main.py, Thuban/UI/__init__.py: Move the work-around
+         for the wxPython locale bug to __init__.py so that it's
+         automatically executed by anybody using UI code from Thuban.
+-07-18  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/main.py (main): app no longer needs to be global
+         * Thuban/UI/mainwindow.py (MainWindow.__init__): Add application
+         as parameter and store it in an instance variable
+         (MainWindow.invoke_command, MainWindow.update_command_ui)
+         (MainWindow.save_modified_session, MainWindow.NewSession)
+         (MainWindow.OpenSession, MainWindow.SaveSession)
+         (MainWindow.SaveSessionAs, MainWindow.ShowSessionTree): Use self's
+         application object.
+         * Thuban/UI/application.py (ThubanApplication.OnInit): Instantiate
+         the main window with self.
+         * Thuban/UI/context.py: New module with the context class
+         * Thuban/UI/command.py (Command): Update doc string.
+         * Thuban/UI/mainwindow.py (MainWindow.invoke_command,
+         MainWindow.update_command_ui): Pass an instance of the context
+         class to the command's methods
+         (check_current_tool, call_method): Handle the new context
+         implementation
+         * Examples/simple_extensions/simple_tool.py (simple_tool,
+         check_simple_tool): Handle the new context implementation
+         * Examples/simple_extensions/simple_command.py (simple_command):
+         Handle the new context implementation. Update the comments about
+         the context.
+         * Thuban/UI/application.py (ThubanApplication.SetSession): Add
+         doc-string
+         (ThubanApplication.Session): New method to return the session
+         object
+         * Thuban/UI/tree.py (SessionTreeCtrl.update_tree): The
+         interactor's selected_layer may not be a layer of the current
+         session when the tree is updated while a new session is being set.
+-07-17  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/tree.py (color_string): Removed. No longer used.
+         (SessionTreeCtrl.update_tree, SessionTreeCtrl.add_items): Split
+         update_tree into update_tree and add_items. The tree now uses a
+         more generic way to display the contents of the tree.
+         (SessionTreeCtrl): Add a doc string explaining the TreeInfo method
+         * Thuban/Model/layer.py (Layer.TreeInfo),
+         Thuban/Model/extension.py (Extension.TreeInfo),
+         Thuban/Model/map.py (Map.TreeInfo),
+         Thuban/Model/session.py (Session.TreeInfo):
+         Add TreeInfo methods to implement the new tree view update scheme
+-07-16  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/application.py: Don't use "import from" for the
+         MainWindow. It can't always be resolved.
+         (ThubanApplication.OnInit): change reference to MainWindow
+         accordingly.
+         * Thuban/UI/menu.py (Menu.SetItems): New method to replace a menu
+         completely
+-07-10  Bernhard Herzog  <[email protected]>
+         * setup.py (create_init_module): New configurable variable whose
+         default depends on the platform we're running on.
+         (ThubanInstall.initialize_options): Initialize
+         self.create_init_module from the global create_init_module
+         (ThubanInstall.user_options): indictate that the options
+         create-init-module and init-module-dir have arguments.
+         * setup.py: In the setup call change the version number to include
+         cvs.
+         * MANIFEST.in: Add the files in Examples
+-07-09  Bernhard Herzog  <[email protected]>
+         * setup.py: In the setup call, use the thuban homepage as the
+         value of the url parameter.
+         * Examples: New subdirectory for examples.
+         * Examples/simple_extensions/simple_tool.xpm,
+         Examples/simple_extensions/simple_tool.py,
+         Examples/simple_extensions/simple_command.py,
+         Examples/simple_extensions/README: Simple examples showing how to
+         add new commands and tools.
+         * setup.cfg (bdist_rpm): Add the default value for prefix and tell
+         bdist_rpm that we also have an install script.
+         (bdist_inno): Add 2002 to the copyright notice.
+         * setup.py: Create a file in python's site-packages directory to
+         make installation of Thuban as a library easier.
+         (ThubanInstall.user_options): Add two new options,
+         create-init-module and init-module-dir
+         (ThubanInstall.expand_with_pure_python_dirs): New method to expand
+         filenames for installation in the default directories.
+         (ThubanInstall.select_scheme, ThubanInstall.convert_paths): Extend
+         the inherited methods to capture some filenames before they're
+         transformed too much by distutils.
+         (ThubanInstall.run): Create the init module if requested.
+         (ThubanInstall.thuban_init_filename): New method to return the
+         full name of the init module.
+         (ThubanInstall.get_outputs): Append the filename of the init
+         module.
+-07-08  Bernhard Herzog  <[email protected]>
+         * setup.py (thuban_bdist_rpm): Extend this version of bdist_rpm to
+         handle the prefix properly which means that the default for the
+         installation prefix should be /usr for RPMs and /usr/local when
+         doing a normal source install.
+         (bdist_rpm_install_script): Script to override the default install
+         commands in the specfile generated by the bdist_rpm command.
+         (thuban_bdist_rpm.user_options): Add a prefix option
+         (thuban_bdist_rpm.initialize_options): Init the prefix option.
+         Create the script files for the spec files as empty files here
+         (thuban_bdist_rpm._make_spec_file): Override the inherited method
+         to fill the script files with content.
+         * Thuban/Model/save.py (relative_filename): Wrapper around
+         Thuban.Lib.fileutil.relative_filename that accepts an empty dir
+         argument. save_session now automatically uses this version,
+         solving a problem when saving to a relative filename.
+         * setup.py: In the setup call, make sure that the library
+         directories are under $prefix/lib not directly under $prefix.
+-06-20  Jan-Oliver Wagner <[email protected]>
+         * Thuban/Model/extension.py: new module to handle extension objects.
+         * Thuban/Model/messages.py: new messages for extensions.
+         * Thuban/Model/session.py (Session.Extensions, Session.HasExtensions,
+         Session.AddExtension): new for handling extensions.
+         Also some other minor changes to round up extension handling.
+         * Thuban/UI/tree.py (SessionTreeCrtl:update_tree): Added visualization
+         of Extension titles and title and names of its objects.
+-05-29  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.bind_command_events): Bind
+         the events for a command.
+         (MainWindow.add_toolbar_command, MainWindow.add_menu_command):
+         Call bind_command_events to bind the events. add_toolbar_command
+         can now bind events too so that it's possible to have commands
+         that are only available through the toolbar.
+         (MainWindow.init_ids): New instance variable events_bound to keep
+         track of for which commands events have been bound.
+-05-28  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/menu.py: New module to build and manage menus.
+         * Thuban/UI/mainwindow.py: Remove some unused imports.
+         (MainWindow.__init__, main_menu): move the definition of the main
+         menu from __init__ to the Menu instance main_menu.
+         (MainWindow.build_menu_bar, MainWindow.build_menu): New methods to
+         build the menu bar and sub-menus from a menu description.
+         * Thuban/UI/application.py (ThubanApplication.OnInit): Read the
+         startup file
+         (ThubanApplication.read_startup_files): New method to run
+         ~/.thuban/thubanstart.py
+         * Thuban/UI/mainwindow.py (MainWindow.__init__, main_toolbar):
+         Move the toolbar definition to the Menu instance main_toolbar.
+         (MainWindow.build_toolbar): New method to build the toolbar
+         similar to the build_menu methods
+-05-23  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.__init__): Fix spelling of
+         layer_outline_color. Fix it in the definition of the command too.
+         * Thuban/UI/command.py (Command): Fix typo in doc string
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.RunMessageBox): Fix a typo
+         in the docstring
+-05-15  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.open_shapefile): Set bbox to None
+         when the shapefile is empty.
+         (Layer.BoundingBox, Layer.LatLongBoundingBox): Both methods may
+         now return None for empty shapefiles. Update doc-strings.
+         * Thuban/Model/map.py (Map.BoundingBox): Add doc-string. Deal with
+         the layer's bbox being None.
+         * Thuban/UI/tree.py (SessionTreeCtrl.update_tree): Deal with the
+         layer's bbox being None.
+         * Thuban/UI/view.py (MapCanvas.shape_selected): Only redraw when
+         necessary.
+         (MapCanvas.__init__): New instance variables, last_selected_layer
+         and last_selected_shape to determine how the selection has
+         changed.
+         * Thuban/UI/tableview.py (TableGrid.__init__): Do not call
+         AutoSizeColumns because it will cause a traversal of the entire
+         table which for large .dbf files will take a very long time.
+-05-14  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.open_shapefile): Choose a better
+         maximum depth for the tree than shapelib does by default.
+-05-10  Bernhard Herzog  <[email protected]>
+         * setup.py (py_modules): The shptree modules doesn't have a
+         wrapper, so don't include it in the py_modules
+-05-08  Bernhard Herzog  <[email protected]>
+         * extensions/shapelib/shptree.c (compare_ints): Make arguments
+         const void * as in the qsort prototype
+         (SHPTreeFindLikelyShapes): Remove some unused variables.
+         * Thuban/UI/view.py (PanTool.MouseMove): Use the bitmap the view
+         maintains to redraw the window during a drag.
+         (MapCanvas.unprojected_rect_around_point): New method to determine
+         a small region around a point for hit-testing.
+         (MapCanvas.find_shape_at): Only test the shapes in a small region
+         around the point.
+         * setup.py: Increment the version to 0.1.2
+         * Thuban/UI/tree.py (SessionTreeCtrl.unsubscribe_all): Remove a
+         debug print and set session to None after unsubscribing
+-05-07  Bernhard Herzog  <[email protected]>
+         * Data/iceland_sample.session, Data/iceland_sample.thuban: Rename
+         the file to have a .thuban extension.
+         * Thuban/UI/tree.py (session_channels): New class constant with
+         all the session channels to subscribe to to update the tree
+         (SessionTreeCtrl.session_changed): Remember the session so that we
+         can unsubscribe properly. Use the new class constant to
+         unsubscribe from the old session and subscribe to the new one.
+         (SessionTreeCtrl.unsubscribe_all): New method to unsubscribe all
+         subscriptions of the SessionTreeCtrl.
+         (SessionTreeView.OnClose): Call the tree's unsubscribe_all method.
+         * Thuban/UI/mainwindow.py (MainWindow.__init__): Add the "Show
+         Session Tree" command to the file menu.
+         * Thuban/UI/view.py (MapCanvas.do_redraw): Pass the entire bitmap
+         as update_region to the renderer.
+         * Thuban/UI/renderer.py
+         (ScreenRenderer.layer_ids, ScreenRenderer.draw_shape_layer): The
+         update box is now directly a tuple, not a wxRect anymore.
+         * Thuban/Model/layer.py (Layer.ShapesInRegion): Remove some debug
+         prints.
+-05-07  Bernhard Herzog  <[email protected]>
+         * setup.py: Add the shptree extension module. See
+         extensions/pyshapelib/ChangeLog for more details.
+         * extensions/shapelib/shpopen.c, extensions/shapelib/shapefil.h,
+         extensions/shapelib/dbfopen.c: Really update to the versions of
+         shapelib 1.2.9. For some reason it wasn't really done on
+-04-11.
+         * extensions/shapelib/shptree.c: Modified version of shptree.c of
+         shapelib 1.2.9. The only real difference is the use of qsort
+         instead of a bubble sort implementation
+         * Thuban/Model/layer.py (Layer.__init__): New instance variable
+         shapetree to hold the shapelib quadtree for the shapefile
+         (Layer.open_shapefile): Create the quad tree.
+         (Layer.ShapesInRegion): New method to return the ids of shapes in
+         a given region using the quad tree.
+         * extensions/thuban/wxproj.cpp (project_points): Fix some typos in
+         comment
+         (draw_polygon_shape): Accept both arcs and polygons.
+         (initwxproj): Use the new PYSHAPELIB_IMPORT_API macro to import
+         the api.
+         * Thuban/UI/renderer.py (MapRenderer.layer_ids): New method to
+         return the shape ids to be rendered in a given layer.
+         (MapRenderer.draw_shape_layer): Call layer_ids to get the list of
+         ids. Use draw_polygon_shape to draw arc shapes as well.
+         (ScreenRenderer.RenderMap): New parameter for the rectangle that
+         has to be updated
+         (ScreenRenderer.layer_ids): Make use of the layer's quadtree by
+         calling it's ShapesInRegion method.
+         * Thuban/UI/view.py (MapCanvas.__init__): New instance variable
+         update_region for the update region.
+         (MapCanvas.OnPaint): Maintain the update region
+         (MapCanvas.do_redraw): Pass the bounding box of the update_region
+         to the renderer when drawing the bitmap. Reset the update_region.
 -05-03  Bernhard Herzog  <[email protected]>
          * Thuban/UI/mainwindow.py (MainWindow.SaveSessionAs,
-Line 6
+Line 3528
          * Thuban/Model/session.py (Session.AddMap, forwarded_channels):
          Move the map channels to be forwarded by the session into the
-         class constant with forwarded_channels.
+         class constant with forwarded_channels. Also add
+         LAYER_PROJECTION_CHANGED and LAYER_VISIBILITY_CHANGED to
+         forwarded_channels
          * Thuban/Model/base.py (Modifiable.changed): Fix doc-string (a
          typo and some rewording).
-Line 53
+Line 3577
          * Thuban/UI/messages.py (VIEW_POSITION): New message for the
          position in the statusbar
--04-26      Frank Koormann <[email protected]>
+-04-26  Frank Koormann <[email protected]>
          * Thuban/UI/mainwindow.py: AddLayer, Dialog title s/session/data
--04-24      Frank Koormann <[email protected]>
+-04-24  Frank Koormann <[email protected]>
          * Resources/Bitmaps/identify.xpm: shadow added
          * Resources/Bitmaps/fullextent.xpm: new
--04-22      Jan-Oliver Wagner <[email protected]>
-         * Thuban/UI/tree.py (update_tree): added test for None on map bounding box
+-04-22  Jan-Oliver Wagner <[email protected]>
--04-21      Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/tree.py (update_tree): added test for None on map bounding
+         box
+-04-21  Jan-Oliver Wagner <[email protected]>
          * Thuban/UI/proj4dialog.py (UTMProposeZoneDialog): new
          * Thuban/UI/tree.py (update_tree): added added map extent
          * Thuban/UI/mainwindow.py (_method_command): extended by parameter
          icon; added map_full_extend as tool
--04-19      Jan-Oliver Wagner <[email protected]>
+-04-19  Jan-Oliver Wagner <[email protected]>
          * Thuban/UI/mainwindow.py (SaveSession): launch save as dialog for
          saving _new_ sessions
-Line 178
+Line 3703
          * setup.py: increase version number to 0.1
          (data_dist): New command class for data distribution
 -09-14  Bernhard Herzog  <[email protected]>
          * Thuban/UI/identifyview.py (IdentifyListCtrl.selected_shape):
          Handle the case of no layer (i.e. layer is None) properly.
          * Thuban/UI/proj4dialog.py (UTMDialog.__init__, Proj4Dialog.__init__):
          Set the initial selection of the combo boxes to reflect the
          projection we're starting with in a way that works on windows,
          too.
-Line 295
+Line 3819
          (MainWindow.identify_view_on_demand): Store the interactor in an
          instvar and use that reference instead of going through main.app
          * Thuban/UI/mainwindow.py (MainWindow.ShowSessionTree):
          * Thuban/UI/application.py (ThubanApplication.OnInit):
          * Thuban/UI/main.py (main): Create the session tree view in main
          with the new mainwindow method ShowSessionTree and not directly
          the application's OnInit method
-Line 312
+Line 3836
          layer to the tableview dialog.
          * Thuban/UI/tableview.py: Add some doc-strings
          (TableGrid):
          (TableGrid.OnRangeSelect):
          (TableGrid.OnSelectCell):
          (TableFrame.__init__):
-Line 379
+Line 3903
 -09-05  Bernhard Herzog  <[email protected]>
          * Thuban/UI/view.py (MapCanvas.__init__): New argument, interactor.
          * Thuban/UI/mainwindow.py (MainWindow.__init__): New argument
          interactor to pass through to the MapCanvas
          * Thuban/UI/application.py (ThubanApplication.OnInit): Use the new
          argument to the MainWindow constructor to get rid of the ugly hack
          that made main.app available early just so that the mapcanvas
-Line 429
+Line 3953
          (ThubanInstall.run): Remove the leading install root from the
          script filename if an install root was specified and use the new
          link_file method
          * Thuban/UI/mainwindow.py (MainWindow.AddLayer): Fit the map to
          the window when the first layer is added to the map.
-Line 466
+Line 3990
          (InnoIconItem): Helper class for bdist_inno
          (thuban_bdist_inno): Thuban specific version of bdist_inno. Added
          this together with the appropriate parameters, to the setup call.
          * setup.cfg (bdist_inno): added new section for the inno setup
          installer

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