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

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-revision 762 by jonathan,
Tue Apr 29 09:02:33 2003 UTC
+revision 1659 by bh,
Tue Aug 26 10:35:20 2003 UTC
 Line 1
--04-25  Jonathan Coles   <[email protected]>
+-08-26  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/postgisdb.py (PostGISTable.Title)
+         (PostGISShapeStore.AllShapes): Add these missing methods.
+         (PostGISShapeStore.ShapesInRegion): No need to raise
+         StopIteration. We can simply return
+         * test/test_postgis_db.py (TestPostGISTable.test_title)
+         (TestPostGISShapestorePoint.test_all_shapes): New tests for the
+         new methods
+-08-25  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/postgisdb.py (shapetype_map): Add MUTLIPOLYGON.
+         * test/test_postgis_db.py (PolygonTests): New class containing
+         those tests from TestPostGISShapestorePolygon that can also be
+         used to test MUTLIPOLYGON tables
+         (TestPostGISShapestorePolygon): Most tests are now in PolygonTests
+         so derive from that
+         (TestPostGISShapestoreMultiPolygon): New class with tests for
+         MUTLIPOLYGON tables
+         * test/postgissupport.py (PostGISDatabase.initdb): Allow the
+         tables argument to have tuples with three items to override the
+         WKT type used.
+         (PostgreSQLServer.get_default_static_data_db): Use the above to
+         create a polygon table with MUTLIPOLYGONs
+         (point_to_wkt, coords_to_point, polygon_to_wkt, coords_to_polygon)
+         (arc_to_wkt, coords_to_multilinestring): Rename from *_to_wkt to
+         coords_to*
+         (coords_to_multipolygon): New. Convert to MUTLIPOLYGON
+         (wkt_converter): New. Map WKT types to converters
+         (upload_shapefile): New parameter force_wkt_type to use a
+         different WKT type than the default
+-08-25  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/application.py
+         (ThubanApplication.run_db_param_dialog): New. Suitable as a
+         db_connection_callback. Main difference is that the dialog run
+         from this method doesn't have a parent so it can be used even when
+         there is no main window
+         (ThubanApplication.OpenSession): Use self.run_db_param_dialog if
+         no db_connection_callback was given. This way the dialog pops up
+         even when the .thuban file was given as a command line parameter.
+-08-25  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/view.py (MapCanvas.OnLeftUp): Release the the mouse
+         before calling MouseLeftUp. MouseLeftUp may pop up modal dialogs
+         which leads to an effectively frozen X session because the user
+         can only interact with the dialog but the mouse is still grabbed
+         by the canvas.
+         Also, call the tool's Hide method before MouseLeftUp because
+         MouseLeftUp may change the tool's coordinates.
+-08-25  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.OpenSession): Catch
+         LoadCancelled exceptions and handle them by returning immediately.
+-08-25  Bernhard Herzog  <[email protected]>
+         GUI part of loading sessions with postgis connections which may
+         require user interaction to get passwords or updated parameters
+         * Thuban/UI/dbdialog.py (DBDialog): Reimplement to make it look a
+         bit nucer and be more generic.
+         (DBFrame.OnAdd): Adapt to new DBDialog interface
+         * Thuban/UI/application.py (ThubanApplication.OpenSession): New
+         optional parameter db_connection_callback which is passed to
+         load_session.
+         * Thuban/UI/mainwindow.py (MainWindow.run_db_param_dialog): New.
+         Suitable as a db_connection_callback
+         (MainWindow.OpenSession): Use self.run_db_param_dialog as the
+         db_connection_callback of the application's OpenSession method
+-08-25  Bernhard Herzog  <[email protected]>
+         Basic loading of sessions containing postgis connections:
+         * Thuban/Model/load.py (LoadError): Add doc-string
+         (LoadCancelled): New exception class to indicate a cancelled load
+         (SessionLoader.__init__): Add the db_connection_callback parameter
+         which will be used by the loader to get updated parameters and a
+         password for a database connection
+         (SessionLoader.__init__): Add the new XML elements to the
+         dispatchers dictionary
+         (SessionLoader.check_attrs): Two new conversions, ascii to convert
+         to a byte-string object and idref as a generic id reference
+         (SessionLoader.start_dbconnection)
+         (SessionLoader.start_dbshapesource): New. Handlers for the new XML
+         elements
+         (load_session): Add the db_connection_callback to pass through the
+         SessionLoader
+         * test/test_load.py (TestPostGISLayer, TestPostGISLayerPassword):
+         New classes to test loading of sessions with postgis database
+         connections.
+-08-25  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (__ThubanVersion__): Remove this and
+         replace it and the comment with __BuildDate__ by the Source: and
+         Id: cvs keywords as used in the other files.
+-08-25  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/load.py (SessionLoader.check_attrs): Raise a
+         LoadError when a required attribute is missing. The code used to
+         be commented out for some reason, but probably should have been
+         active.
+         * test/test_load.py (TestLoadError.test): Test the message in the
+         LoadError too to make sure it really is about the missing
+         attribute
+-08-22  Bernhard Herzog  <[email protected]>
+         * test/test_save.py (SaveSessionTest.test_dbf_table)
+         (SaveSessionTest.test_joined_table): Add XML validation tests.
+-08-22  Bernhard Herzog  <[email protected]>
+         Implement saving a session with a postgis connection
+         * Resources/XML/thuban-0.9.dtd (dbconnection, dbshapesource) New
+         elements for database connections and shapestores using db
+         connections
+         (session): Add the dbconnections to the content model
+         * Thuban/Model/save.py (SessionSaver.write_db_connections): New.
+         Write the db connections
+         (SessionSaver.write_session): Call write_db_connections to write
+         the connection before the data sources
+         (SessionSaver.write_data_containers): Handle postgis shapestores
+         * test/test_save.py (SaveSessionTest.thubanids)
+         (SaveSessionTest.thubanidrefs): Update for new DTD
+         (SaveSessionTest.test_save_postgis): New. Test saving a session
+         with postgis connections
+         * Thuban/Model/postgisdb.py (PostGISTable.DBConnection)
+         (PostGISTable.TableName): New accessor methods for the connection
+         and table name
+         * test/test_postgis_db.py (TestPostGISTable.test_dbconn)
+         (TestPostGISTable.test_dbname): New methods to test the new
+         PostGISConnection methods
+-08-22  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/postgisdb.py (ConnectionError): New exception class
+         for exceptions occurring when establishing a Database connection
+         (PostGISConnection.connect): Catch psycopg.OperationalError during
+         connects and raise ConnectionError.
+         * test/test_postgis_db.py (TestPostgisDBExceptions): New class for
+         tests for database exceptions
+-08-22  Bernhard Herzog  <[email protected]>
+         Prepare the test suite for tests with required authentication
+         * test/postgissupport.py (PostgreSQLServer.__init__): Add instance
+         variables with two predefined users/passwords, one for the admin
+         and one for a non-privileged user.
+         (PostgreSQLServer.createdb): Pass the admin name to initdb and add
+         the non-privileged user to the database and set the admin password
+         (PostgreSQLServer.wait_for_postmaster): Use the admin user name.
+         Better error reporting
+         (PostgreSQLServer.connection_params)
+         (PostgreSQLServer.connection_string): New methods to return
+         information about how to connect to the server
+         (PostgreSQLServer.execute_sql): New. Convenience method to execute
+         SQL statements
+         (PostgreSQLServer.require_authentication): Toggle whether the
+         server requires authentication
+         (PostgreSQLServer.create_user, PostgreSQLServer.alter_user): New.
+         Add or alter users
+         (PostGISDatabase.initdb): Pass the admin name one the
+         subprocesses' command lines. Grant select rights on
+         geometry_columns to everybody.
+         (upload_shapefile): Use the admin name and password when
+         connecting. Grant select rights on the new table to everybody.
+         * test/test_viewport.py (TestViewportWithPostGIS.setUp): Use the
+         server's new methods to get the connection parameters.
+         * test/test_postgis_session.py (TestSessionWithPostGIS.setUp)
+         (TestSessionWithPostGIS.test_remove_dbconn_exception): Use the
+         server's new methods to get the connection parameters.
+         * test/test_postgis_db.py
+         (TestPostGISConnection.test_gis_tables_empty)
+         (TestPostGISConnection.test_gis_tables_non_empty)
+         (PostGISStaticTests.setUp): Use the server's new methods to get
+         the connection parameters.
+-08-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/about.py (About.__init__): Add the psycopg version.
+         * Thuban/version.py: Add psycopg version
+         * Thuban/Model/postgisdb.py (psycopg_version): New. Return the
+         version of the psycopg module
+-08-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/dbdialog.py (DBPwdDlg): Removed because it's not used.
+         (DBFrame.OnEdit): Removed because it's not used and wouldn't work
+         at the moment. The functionality should probably be implemented
+         some time, though.
+         (DBFrame.OnRemove): Display a message if the connection can't be
+         removed because it's still in use.
+-08-22  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/about.py (About.__init__): split up the huge about
+         text into elements/lists for easier translation. This fixes bug
+         https://intevation.de/rt/webrt?serial_num=2058
+         Also, made some forgotten string available for the i18n.
+-08-21  Bernhard Herzog  <[email protected]>
+         Make postgis support really optional including insensitive menu
+         items.
+         * Thuban/Model/postgisdb.py (has_postgis_support): New. Return
+         whether the postgis is supported.
+         * Thuban/UI/dbdialog.py: Put the psycopg import into try..except
+         to make postgis support optional
+         * Thuban/UI/mainwindow.py (_has_postgis_support): New. Context
+         version of Thuban.Model.postgisdb.has_postgis_support
+         (database_management command): Make it only sensitive if postgis
+         is supported.
+-08-21  Jan-Oliver Wagner <[email protected]>
+         * Doc/manual/thuban-manual.xml: Added CVS revision for rev-history.
+         (section Adding and Removing Layers): Added text and described
+         multi-selection.
+         (chapter Extensions): New.
+-08-21  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.AddLayer): Changed dialog
+         settings to allow multiple files to load into the map.
+         Also reduced selection to *.shp as a default.
+-08-20  Bernhard Herzog  <[email protected]>
+         Add dialogs and commands to open database connections and add
+         database layers.
+         * Thuban/UI/mainwindow.py (MainWindow.DatabaseManagement): New
+         method to open the database connection management dialog
+         (MainWindow.AddDBLayer): New method to add a layer from a database
+         (_has_dbconnections): New helper function to use for sensitivity
+         (database_management command, layer_add_db command): New commands
+         that call the above new methods.
+         (main_menu): Add the new commands to the menu.
+         * Thuban/Model/postgisdb.py (PostGISConnection.__init__)
+         (PostGISConnection.connect): Establish the actual connection in a
+         separate method and call it in __init__. This makes it easier to
+         override the behavior in test cases
+         (PostGISConnection.BriefDescription): New method to return a brief
+         description for use in dialogs.
+         * test/test_postgis_db.py (NonConnection): DB connection that
+         doesn't actually connect
+         (TestBriefDescription): New class with tests for the new
+         BriefDescription method
+-08-19  Jan-Oliver Wagner <[email protected]>
+         Moved anything from extensions to libraries.
+         * libraries: New.
+         * libraries/ pyprojection, pyshapelib, shapelib, thuban: New.
+         * libraries/pyprojection/ LICENSE, MANIFEST.in, Projection.i,
+         Projection.py, Projection_wrap.c, setup.py, swighelp.txt: These files have
+         been moved here from thuban/extensions/pyprojection/
+         See there in the Attic for the older history.
+         * libraries/pyshapelib/ COPYING, ChangeLog, NEWS, README, dbflib.i,
+         dbflib.py, dbflib_wrap.c, pyshapelib_api.h, pytest.py, setup.py,
+         shapelib.i, shapelib.py, shapelib_wrap.c, shptreemodule.c: These files
+         have been moved here from thuban/extensions/pyshapelib/
+         See there in the Attic for the older history.
+         * libraries/shapelib/ dbfopen.c, shapefil.h, shpopen.c, shptree.c: These
+         files have been moved here from thuban/extensions/shapelib/
+         See there in the Attic for the older history.
+         * libraries/thuban/ bmpdataset.cpp, cpl_mfile.cpp, cpl_mfile.h,
+         gdalwarp.cpp, wxproj.cpp: These files have been moved here from
+         thuban/extensions/thuban/
+         See there in the Attic for the older history.
+         * MANIFEST.in, setup.cfg, setup.py: renamed extensions to libraries.
+         * extensions/thuban/ bmpdataset.cpp, cpl_mfile.cpp, cpl_mfile.h,
+         gdalwarp.cpp, wxproj.cpp: Moved to libraries/thuban.
+         * extensions/shapelib/ dbfopen.c, shapefil.h, shpopen.c, shptree.c:
+         Moved to libraries/shapelib.
+         * extensions/pyshapelib/ COPYING, NEWS, dbflib.py, pytest.py,
+         shapelib.py, README, dbflib_wrap.c, setup.py, shapelib_wrap.c,
+         ChangeLog, dbflib.i, pyshapelib_api.h, shapelib.i, shptreemodule.c:
+         Moved to libraries/pyshapelib.
+         * extensions/pyprojection/ MANIFEST.in, Projection.py, setup.py,
+         LICENSE, Projection.i, Projection_wrap.c, swighelp.txt:
+         Moved to libraries/pyprojection.
+         * extensions/ pyprojection, pyshapelib, shapelib, thuban: Removed.
+         * extensions: Removed.
+-08-19  Bernhard Herzog  <[email protected]>
+         * test/test_viewport.py (ViewPortTest): We don't use the
+         facilities of FileTestMixin so don't derive from it.
+         (TestViewportWithPostGIS): New class with tests for using a
+         viewport on a map with postgis layers.
+-08-19  Bernhard Herzog  <[email protected]>
+         Add the db connection management to the session.
+         * Thuban/Model/session.py (Session.__init__): New instance
+         variable db_connections
+         (Session.AddDBConnection, Session.DBConnections)
+         (Session.HasDBConnections, Session.CanRemoveDBConnection)
+         (Session.RemoveDBConnection): New methods to manage and query the
+         db connections managed by the session
+         (Session.OpenDBShapeStore): New method to open a shapestore from a
+         db connection
+         * Thuban/Model/messages.py (DBCONN_REMOVED, DBCONN_ADDED): New
+         messages for the db connection handling in the session
+         * test/test_postgis_session.py: New. test cases for the session's
+         db connection handling with postgis connections
+-08-19  Bernhard Herzog  <[email protected]>
+         Add very basic postgis database support and the corresponding test
+         cases. The test cases require a PostgreSQL + postgis installation
+         but no existing database. The database will be created
+         automatically by the test cases
+         * test/README: Add note about skipped tests and the requirements
+         of the postgis tests.
+         * Thuban/Model/postgisdb.py: New. Basic postgis database support.
+         * test/test_postgis_db.py: New. Test cases for the postgis
+         support.
+         * Thuban/Model/wellknowntext.py: New. Parser for well-known-text
+         format
+         * test/test_wellknowntext.py: New. Test cases for the
+         wellknowntext parser
+         * test/postgissupport.py: New. Support module for tests involving
+         a postgis database.
+         * test/support.py (execute_as_testsuite): Shut down the postmaster
+         if it's still running after the tests
+         * Thuban/Model/data.py (RAW_WKT): New constant for raw data in
+         well known text format
+-08-19  Jan-Oliver Wagner <[email protected]>
+         * Examples/simple_extensions/hello_world.py: New. Raises a Hello World
+         message dialog.
+-08-18  Bernhard Herzog  <[email protected]>
+         * test/support.py (ThubanTestResult.printErrors): Indent the
+         reason for the skips in the output to make it a bit more readable.
+         (execute_as_testsuite): New helper function to run a test suite
+         and print some more information.
+         (run_tests): Use execute_as_testsuite to run the tests
+         * test/runtests.py (main): Use execute_as_testsuite to run the
+         tests
+-08-18  Bernhard Herzog  <[email protected]>
+         Fix some bugs in Thuban and the test suite that were uncovered by
+         changes introduced in Python 2.3:
+         * Thuban/Model/table.py (DBFTable.__init__): Make sure the
+         filename is an absolute name
+         * Thuban/Model/layer.py (RasterLayer.__init__): Make sure the
+         filename is an absolute name
+         * test/test_save.py (SaveSessionTest.testRasterLayer): Use a
+         unique filename to save to and use the correct relative filename
+         in the expected output.
+         (SaveSessionTest.test_dbf_table): Use the correct relative
+         filename in the expected output.
+         * test/test_layer.py (TestLayer.test_raster_layer): Update the
+         test to check whether the filename is absolute.
+-08-18  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/about.py (About.__init__): Added Silke Reimer.
+-08-15  Bernhard Herzog  <[email protected]>
+         Change the way shapes are returned by a shape store. The
+         ShapesInRegion method returns an iterator over actual shape
+         objects instead of a list of shape ids.
+         * Thuban/Model/data.py (ShapefileShape.ShapeID): New. Return shape
+         id.
+         (ShapefileStore.ShapesInRegion): Return an iterator over the
+         shapes which yields shape objects instead of returning a list of
+         shape ids
+         (ShapefileStore.AllShapes): New. Return an iterator over all
+         shapes in the shape store
+         (DerivedShapeStore.AllShapes): New. Like in ShapefileStore
+         * Thuban/Model/layer.py (Layer.ShapesInRegion): Update
+         doc-string.
+         * Thuban/UI/baserenderer.py
+         (BaseRenderer.layer_ids, BaseRenderer.layer_shapes): Rename to
+         layer_shapes and make it return an iterator containg shapes
+         instead of a list of ids.
+         (BaseRenderer.draw_shape_layer): Update doc-string; Adapt to
+         layer_shapes() change
+         * Thuban/UI/renderer.py (ScreenRenderer.layer_ids)
+         (ScreenRenderer.layer_shapes): Rename as in BaseRenderer
+         * Thuban/UI/viewport.py (ViewPort._find_shape_in_layer): Adapt to
+         changes in the ShapesInRegion return value.
+         (ViewPort._get_hit_tester): Remove commented out code
+         * test/mockgeo.py (SimpleShapeStore.ShapesInRegion): Adapt to the
+         new return value.
+         (SimpleShapeStore.AllShapes): New. Implement this method too.
+         * test/test_layer.py (TestLayer.test_arc_layer)
+         (TestLayer.test_polygon_layer, TestLayer.test_point_layer)
+         (TestLayer.test_point_layer_with_projection)
+         (TestLayer.test_derived_store): Adapt to changes in the
+         ShapesInRegion return value.
+         * test/test_shapefilestore.py
+         (TestShapefileStoreArc.test_shapes_in_region)
+         (TestShapefileStorePolygon.test_shapes_in_region)
+         (TestShapefileStorePoint.test_shapes_in_region): Adapt to changes
+         in the ShapesInRegion return value.
+         (TestShapefileStorePoint.test_all_shapes)
+         (TestShapefileStoreArc.test_shape_shapeid): New tests for the new
+         methods
+         * test/test_derivedshapestore.py
+         (TestDerivedShapeStore.test_shapes_in_region): Adapt to changes in
+         the ShapesInRegion return value.
+         (TestDerivedShapeStore.test_all_shapes)
+         (TestDerivedShapeStore.test_shape_shapeid): New tests for the new
+         methods
+-08-15  Bernhard Herzog  <[email protected]>
+         Make the renderers deal correctly with raw vs. python level
+         representation of shape geometries
+         * Thuban/UI/baserenderer.py (BaseRenderer.low_level_renderer):
+         Return a flag useraw in addition to the callable and the parameter
+         to indicate whether the callable can deal with the raw shape data
+         or uses the higher level python lists of coordinates. The callable
+         now should accept either the raw data or the return value of the
+         shape's Points() method.
+         (BaseRenderer.draw_shape_layer): Adapt to the low_level_renderer
+         change
+         (BaseRenderer.projected_points): Instead of the shape id use the
+         points list as parameter.
+         (BaseRenderer.draw_polygon_shape, BaseRenderer.draw_arc_shape)
+         (BaseRenderer.draw_point_shape): Adapt to projected_points()
+         change and accept the points list as parameter instead of the
+         shape id.
+         * Thuban/UI/renderer.py (MapRenderer.low_level_renderer): Return
+         the useraw flag as required by the BaseRenderer
+         (ScreenRenderer.draw_shape_layer): Adapt to low-level renderer
+         changes.
+         * test/test_baserenderer.py
+         (TestBaseRenderer.test_point_with_classification): New test for
+         rendering a map with classifications.
+-08-15  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/viewport.py (ViewPort.find_shape_at)
+         (ViewPort._find_shape_in_layer, ViewPort._find_shape_in_layer)
+         (ViewPort._get_hit_tester, ViewPort.projected_points)
+         (ViewPort._hit_point, ViewPort._hit_arc, ViewPort._hit_polygon)
+         (ViewPort._find_label_at): Split the find_shape_at method into
+         several new methods and use the functions in the hit-test module.
+         * Thuban/UI/hittest.py: New module with Python-level hit-testing
+         functions
+         * test/test_hittest.py: New. Test for the new hittest module
+-08-15  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.ShapesInRegion): Apply the layer
+         projection to all corners of the bounding box to get a better
+         approximation of the projected bounding box
+         * test/test_layer.py (TestLayer.test_point_layer_with_projection):
+         New. Test coordinate handling of a layer with a projection.
+         Catches the bug fixed in Layer.ShapesInRegion
+-08-15  Bernhard Herzog  <[email protected]>
+         Move some of the mock objects in test_baserenderer into their own
+         module so they can easily be used from other tests
+         * test/mockgeo.py: New test helper module with some mock objects
+         for geometry related things like shapes, shapestores and
+         projections.
+         * test/test_mockgeo.py: New. Tests for the new helper module
+         * test/test_baserenderer.py: Some of the mock-objects are in
+         mockgeo now.
+-08-12  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/about.py (About.__init__): Added Bj�rn Broscheit.
+-08-12  Bernhard Herzog  <[email protected]>
+         * po/de.po: New. German translations by Bjoern Broscheit
+-08-12  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/projdialog.py (UnknownProjPanel._DoLayout): Translated
+         strings have to be one string literal.
+-08-11  Bernhard Herzog  <[email protected]>
+         * test/support.py (FloatComparisonMixin.assertPointListEquals):
+         New. This method was used in various derived classes, but it's
+         better to have it here.
+         * test/test_shapefilestore.py
+         (ShapefileStoreTests.assertPointListEquals): Removed. It's now in
+         FloatComparisonMixin
+         * test/test_layer.py (TestLayer.assertPointListEquals): Removed.
+         It's now in FloatComparisonMixin
+         * test/test_derivedshapestore.py
+         (TestDerivedShapeStore.assertPointListEquals): Removed. It's now
+         in FloatComparisonMixin
+-08-11  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.OnJoin): Add missing space to
+         error message
+-08-08  Jan-Oliver Wagner <[email protected]>
+         * Doc/manual/thuban-manual.xml: Now use authorgroup. Added revhistory
+         with version number.
+         Changed title to reflect version number of Thuban.
+-08-08  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/about.py (About.__init__): Reworked the hall of fame. Now
+         the list corresponds to the "About" web page.
+-08-08  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/projdialog.py (UTMProposeZoneDialog.dialogLayout):
+         Make sure translated strings are recognized as one string literal.
+         * Thuban/UI/proj4dialog.py (UTMProposeZoneDialog.dialogLayout):
+         Make sure translated strings are recognized as one string literal.
+         * Thuban/UI/classgen.py (ClassGenDialog.OnOK): Make sure
+         translated strings are recognized as one string literal.
+         * Thuban/UI/application.py (ThubanApplication.OpenSession): Make
+         sure translated strings are recognized as one string literal.
+-08-07  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/data.py (DerivedShapeStore.RawShapeFormat): New.
+         Simply delegates to the original shapestore.
+         * test/test_derivedshapestore.py
+         (TestDerivedShapeStore.test_raw_format): New. Test case for
+         DerivedShapeStore.RawShapeFormat
+-08-07  Bernhard Herzog  <[email protected]>
+         Add raw data interface to shape objects.
+         * Thuban/Model/data.py (ShapefileShape, Shape): Rname the shape
+         class to ShapefileShape which now holds shapefile specific
+         information.
+         (ShapefileShape.compute_bbox): Simplified to not cache any
+         information. The way this method is used that shouldn't matter
+         performance wise.
+         (ShapefileShape.RawData): New. Return the shapeid which is the raw
+         data format for shapes from shapefiles.
+         (ShapefileStore.RawShapeFormat): New. Return the raw datatype used
+         in the shape objects returned by a shapestore. For a
+         ShapefileStore this is always RAW_SHAPEFILE.
+         (RAW_PYTHON, RAW_SHAPEFILE): Constants for the RawShapeFormat
+         method.
+         * test/test_shapefilestore.py
+         (TestShapefileStore.test_raw_format): New test to test the raw
+         format feature of shapes.
+         * Thuban/Model/layer.py: Remove the unused import of Shape from
+         data. It was only there for interface compatibility but it's not
+         used inside of Thuban and the generic Shape class has gone away.
+         * Thuban/UI/renderer.py (MapRenderer.low_level_renderer): Check
+         the raw data format and only use an optimized version of its a
+         shapefile.
+-08-07  Bernhard Herzog  <[email protected]>
+         * test/test_baserenderer.py (SimpleShape): Shape class for the
+         tests.
+         (SimpleShapeStore.Shape): Use SimpleShape instead of
+         Thuban.Model.data.Shape to make the tests independed of the coming
+         changes.
+-08-07  Bernhard Herzog  <[email protected]>
+         * test/support.py (SkipTest, ThubanTestResult, ThubanTestRunner)
+         (ThubanTestProgram): New classes that extend the respective
+         classes from unittest. These new version support skipping tests
+         under certain expected conditions. In the Thuban test suite we
+         uses this for tests that require the optional gdal support.
+         (run_tests): Use ThubanTestProgram instead of the unittest.main()
+         * test/runtests.py (main): Use the new ThubanTestRunner instead of
+         the normal one from unittest
+         * test/test_layer.py (TestLayer.test_raster_layer): If this test
+         is not run because gdal support isn't available report this to the
+         runner.
+         * test/test_baserenderer.py
+         (TestBaseRenderer.test_raster_no_projection): Do not run this test
+         if gdal support isn't available and report this to the runner.
+-08-06  Bernhard Herzog  <[email protected]>
+         Rearrange the renderers a bit, partly in preparation for changes
+         required for the postgis merge, partly to make it more testable.
+         Also make the representation of coordinates in Shapes more
+         consistent.
+         * Thuban/UI/renderer.py (MapRenderer): Most of the code/methods in
+         this class is now in BaseRenderer. This class is now practically
+         only a specialization of BaseRenderer for rendering to an actual
+         wx DC.
+         (ScreenRenderer.draw_shape_layer): Use self.low_level_renderer()
+         to get the shapetype specific rendering functions.
+         * Thuban/UI/baserenderer.py: New file with the basic rendering
+         logic. The code in this file is completely independend of wx.
+         (BaseRenderer): Class with the basic rendering logic
+         * test/test_baserenderer.py: New. Test cases for BaseRenderer
+         * Thuban/UI/view.py (MapCanvas.__init__): New instance variable
+         error_on_redraw to guard agains endless loops and stack overflows
+         when there's a bug in the rendering code that raises exceptions.
+         (MapCanvas.OnIdle, MapCanvas._do_redraw): Split the actual
+         rendering into a separate method _do_redraw so that error handling
+         is a bit easier. When an exception occurs, set error_on_redraw to
+         true. When it's true on entry to OnIdle do nothing and return
+         immediately.
+         * Thuban/Model/data.py (ShapefileStore.Shape): For consistency, a
+         Shape object will always have the coordinates as a list of list of
+         coordinate pairs (tuples).
+         (Shape.compute_bbox): Adapt to new representation.
+         * Thuban/UI/viewport.py (ViewPort.find_shape_at)
+         (ViewPort.LabelShapeAt): Adapt to new coordinate representation in
+         Shape objects.
+         * test/test_shapefilestore.py
+         (ShapefileStoreTests.assertFloatTuplesEqual)
+         (ShapefileStoreTests.assertPointListEquals): Rename to
+         assertPointListEquals and change purpose to checking equality of
+         the lists returned by Shape.Points().
+         (TestShapefileStoreArc.test_shape)
+         (TestShapefileStorePolygon.test_shape)
+         (TestShapefileStorePoint.test_shape): Use the new
+         assertPointListEquals instead of assertFloatTuplesEqual
+         * test/test_layer.py (TestLayer.assertFloatTuplesEqual)
+         (TestLayer.assertPointListEquals): Rename to assertPointListEquals
+         and change purpose to checking equality of the lists returned by
+         Shape.Points().
+         (TestLayer.test_arc_layer, TestLayer.test_arc_layer)
+         (TestLayer.test_polygon_layer, TestLayer.test_point_layer)
+         (TestLayer.test_derived_store): Use the new assertPointListEquals
+         instead of assertFloatTuplesEqual
+         * test/test_derivedshapestore.py
+         (TestDerivedShapeStore.assertFloatTuplesEqual)
+         (TestDerivedShapeStore.assertPointListEquals): Rename to
+         assertPointListEquals and change purpose to checking equality of
+         the lists returned by Shape.Points().
+         (TestDerivedShapeStore.test_shape): Use the new
+         assertPointListEquals instead of assertFloatTuplesEqual
+-08-06  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/projdialog.py (UTMPanel._OnPropose): Added test for
+         a bounding box. A dialog is raised in case, no bounding box
+         is found. This fixes bug #2043:
+         https://intevation.de/rt/webrt?serial_num=2043
+-08-05  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/color.py (Color.__repr__): Make the repr of a color
+         object look like a Color instantiation. Formerly it looked like a
+         tuple.
+         * test/test_color.py (TestColor.test_repr)
+         (TestColor.test_equality, TestColor.test_inequality): New. test
+         some more apects of the Color class
+         (TestTransparent.test_repr, TestTransparent.test_hex)
+         (TestTransparent.test_equality): New. Test cases for the
+         Transparent object.
+-08-04  Jan-Oliver Wagner <[email protected]>
+         * Doc/manual/thuban-manual.xml: a number of small improvements.
+         The resulting file is the version submitted for GREAT-ER II.
+-08-01  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/resource.py, Thuban/UI/projdialog.py,
+         Thuban/UI/join.py, Thuban/UI/classgen.py, Thuban/UI/about.py,
+         Thuban/Model/resource.py: Insert cvs keywords and doc-strings.
+         * Thuban/UI/common.py: Insert cvs keywords and doc-strings.
+         (Color2wxColour, wxColour2Color, ThubanBeginBusyCursor)
+         (ThubanEndBusyCursor): Add doc-strings
+-08-01  Bernhard Herzog  <[email protected]>
+         First step towards PostGIS integration. More abstraction by movin
+         more code from the layer to the shapestore. More methods of the
+         layer are now simply delegated to the equivalent method of the
+         shapestore. The SHAPETYPE_* constants are now in data not in
+         layer.
+         * Thuban/Model/data.py (SHAPETYPE_POLYGON, SHAPETYPE_ARC)
+         (SHAPETYPE_POINT, Shape): Move these constants and classes from
+         layer.py to data.py
+         (ShapefileStore.__init__): More Initialization for the new methods
+         and functionality.
+         (ShapefileStore.ShapeType, ShapefileStore.NumShapes)
+         (ShapefileStore.BoundingBox, ShapefileStore.ShapesInRegion)
+         (ShapefileStore.Shape): New methods that were formerly implemented
+         in the layer.
+         (DerivedShapeStore.Shape, DerivedShapeStore.ShapesInRegion)
+         (DerivedShapeStore.ShapeType, DerivedShapeStore.NumShapes)
+         (DerivedShapeStore.BoundingBox): New. DerivedShapeStore
+         equivalents of the new shape methods. These versions are simply
+         delegated to the original shapstore.
+         * Thuban/Model/layer.py (SHAPETYPE_POLYGON, SHAPETYPE_ARC)
+         (SHAPETYPE_POINT, Shape): Removed. They're now in data.py
+         (Layer.SetShapeStore): Removed the initializatin of instance
+         variables that were needed for the stuff that's now in
+         ShapefileStore
+         (Layer.BoundingBox, Layer.NumShapes, Layer.ShapeType)
+         (Layer.Shape, Layer.ShapesInRegion): Simply delegate to the
+         shapestore.
+         * Thuban/UI/classifier.py, Thuban/UI/renderer.py,
+         Thuban/UI/viewport.py: Import the SHAPETYPE_* constants from data
+         instead of layer.
+         * test/test_shapefilestore.py: New. Tests for ShapefileStore.
+         * test/test_derivedshapestore.py: New. Tests for DerivedShapeStore.
+         * test/test_layer.py: Import the SHAPETYPE_* constants from data
+         instead of layer.
+         (TestLayer.test_derived_store): Remove the test for the exception
+         when instantiating the DerivedShapeStore with an incompatible
+         table which is now in test_derivedshapestore.py. Add some more
+         tests of the layer methods to determine whether they work for a
+         DerivedShapeStore as well.
+-07-31  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Fix the list of required packages
+         by just listing the name and where they can be found.
+-07-31  Frank Koormann   <[email protected]>
+         * Doc/manual/thuban-manual.xml:
+         Changed the screenshot elements to figure.
+         Changed some variablelist elements to itemizedlist.
+         Added section on GDAL formats.
+-07-31  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Added a few sentences about
+         the Fix Border Color option when generating classes.
+-07-30  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py: Add docstrings. Rename specific
+         Ramp instances to use lower_case_style.
+         * Thuban/UI/classgen.py: Use renamed Ramp instances.
+         * Thuban/UI/classifier.py: Add docstrings.
+         * Thuban/UI/dock.py: Add docstrings.
+         * test/test_classgen.py: Use renamed Ramp instances.
+-07-30  Bernhard Herzog  <[email protected]>
+         * Thuban/Lib/connector.py (QueueingPublisher): Removed. This class
+         was never used in Thuban.
+-07-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.__init__): Use the table's Title()
+         method directly instead of going through the transient_table
+         method. This faster because transient_table may force the copy of
+         a DBF file into the transient database and setting a table's title
+         doesnm't affect the title of the associated transient table, so
+         this fixes RT #2042
+         * Thuban/UI/main.py (__version__): Don't import the already
+         removed show_exception_dialog.
+-07-29  Jonathan Coles   <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.ShowExceptionDialog):
+         Put back this method and remove the equivalent function since we
+         are setting the exception hook from within this class (OnInit).
+-07-29  Jonathan Coles   <[email protected]>
+         * Doc/manual/images/5_2_custom_ramp.png,
+         Doc/manual/images/5_2_quantiles.png,
+         Doc/manual/images/5_2_uniform_dist.png,
+         Doc/manual/images/5_2_unique_values.png,
+         Doc/manual/images/8_int_error.png: New screen shots.
+         * Doc/manual/thuban-manual.xml: Fixed typos and wording, clarified
+         some points, and added more screen shots.
+-07-29  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/data.py: Remove the now unused import of warnings
+-07-29  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/data.py (SimpleStore): Removed. This class has been
+         deprecated since before the 0.8 release and isn't used in Thuban
+         itself anymore.
+         * Thuban/Model/transientdb.py: Remove some unnecessary imports
+-07-29  Jonathan Coles   <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.OnInit): set the
+         python exception hook here so that we are sure to catch any
+         Thuban exception that happen during initialization.
+         * Thuban/UI/main.py (main): Don't set the exception hook here,
+         it will get set in ThubanApplication.OnInit.
+-07-29  Jonathan Coles   <[email protected]>
+         * Thuban/UI/application.py (ThubanApplication.ShowExceptionDialog):
+         Removed and called it show_exception_dialog() so that the exception
+         handler can be set before the class is created.
+         * Thuban/UI/main.py (main): Install the exception handler before
+         a ThubanApplication is created.
+-07-29  Bernhard Herzog  <[email protected]>
+         * po/it.po: New. Italian translation by Maurizio Napolitano
+         * po/ru.po: New. Russian translation by Alex Shevlakov
+-07-29  Frank Koormann   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Extended section on supported
+         projections.
+-07-29  Frank Koormann   <[email protected]>
+         * Doc/manual/thuban-manual.xml: gaspell-checked.
+-07-29  Jonathan Coles   <[email protected]>
+         * Doc/manual/images/3_5_legend.png: Added border to improve look
+         on white background.
+-07-29  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Fixed grammar and typos. Added
+         descriptions for the legend toolbar.
+         * Doc/manual/images/4_2_raster_layer_properties.png: Removed
+         cursor from dialog box.
+-07-28  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: More screenshots and more chapters.
+         * Doc/manual/images/2_4_session_tree.png,
+         Doc/manual/images/3_5_legend.png, Doc/manual/images/3_rename_map.png,
+         Doc/manual/images/4_2_layer_properties.png,
+         Doc/manual/images/4_2_raster_layer_properties.png,
+         Doc/manual/images/5_3_genclass.png,
+         Doc/manual/images/5_classification.png,
+         Doc/manual/images/6_projection.png,
+         Doc/manual/images/7_1_table_view.png,
+         Doc/manual/images/7_2_5_join.png: New screenshots.
+-07-24  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Chapter on Projection Management.
+-07-24  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Added EPS images and wrote
+         chapter on Layer Management.
+         * Doc/manual/Makefile: New. Makefile to generate all formats for the
+         manual and images.
+-07-24  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/range.py, Thuban/version.py: Remove the #! line as
+         it annoys lintian which warns about these files not being
+         executable. The #1 isn't necessary here since if you absolutely
+         must execute them you can always say "python <filename>".
+         * Thuban/UI/renderer.py (ScreenRenderer.draw_shape_layer): Remove
+         superfluous code to set brush and pen for point shapes
+         * Thuban/UI/viewport.py: Remove commented out code that wouldn't
+         belong in viewport anyway
+-07-24  Frank Koormann   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Added section on table management.
+-07-24  Bernhard Herzog  <[email protected]>
+         * test/runtests.py (main): Recognize the long "verbose" option
+         correctly.
+-07-22  Jonathan Coles   <[email protected]>
+         * Doc/manual/thuban-manual.xml: Continue to write first revision
+         of the manual.
+         * Thuban/UI/renderer.py (MapRenderer.render_map): Wrap method
+         with Begin/EndDrawing() calls to ensure we aren't doing to
+         many updates to the dc during rendering.
+         (ScreenRenderer.draw_shape_layer): self.draw_point_shape takes
+         a pen and brush argument so they need to be passed to the function.
+         * Thuban/UI/viewport.py (ViewPort.calc_min_max_scales): New.
+         Calculates the minimum and maximum scale values. Factored out
+         of set_view_transform so that it could be used to zoom all the
+         way into a single point.
+         (ViewPort.set_view_transform): Call calc_min_max_scales().
+         (ViewPort.FitSelectedToWindow): Zoom to the maximum scale
+         if only a single point is selected.
+         * Doc/manual/images/1_2_legend_close.png,
+         Doc/manual/images/1_2_legend_dock.png,
+         Doc/manual/images/1_2_mainwindow.png,
+         Doc/manual/images/1_2_mainwindow.ps,
+         Doc/manual/images/1_2_mainwindow.sk,
+         Doc/manual/images/3_2_fullextent.png,
+         Doc/manual/images/3_2_fulllayerextent.png,
+         Doc/manual/images/3_2_fullshapeextent.png,
+         Doc/manual/images/3_2_pan.png,
+         Doc/manual/images/3_2_zoomin.png,
+         Doc/manual/images/3_2_zoomout.png,
+         Doc/manual/images/3_3_identify.png,
+         Doc/manual/images/3_3_label.png,
+         Doc/manual/images/3_5_invisible.png,
+         Doc/manual/images/3_5_movedown.png,
+         Doc/manual/images/3_5_moveup.png,
+         Doc/manual/images/3_5_props.png,
+         Doc/manual/images/3_5_tobottom.png,
+         Doc/manual/images/3_5_totop.png,
+         Doc/manual/images/3_5_visible.png: New. Images for the documentation.
+-07-18  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/messages.py (MAP_REPLACED): New message.
+         * Thuban/UI/viewport.py (ViewPort.SetMap): Issue MAP_REPLACED
+         after the new map has been assigned
+         * Thuban/UI/mainwindow.py (MainWindow.delegated_messages):
+         Delegate MAP_REPLACED to the canvas too
+         (MainWindow.prepare_new_session): Removed. Thanks to the new
+         MAP_REPLACED message it's no longer needed
+         (MainWindow.OpenSession, MainWindow.NewSession):
+         prepare_new_session has been removed.
+         * Thuban/UI/classifier.py (Classifier.__init__): Subscribe to
+         MAP_REPLACED so that we can close the dialog if a new map is set.
+         (Classifier.unsubscribe_messages): Unsubscribe from MAP_REPLACED
+         (Classifier.map_replaced): Handle MAP_REPLACED by closing the
+         dialog
+         * test/test_viewport.py (SimpleViewPortTest)
+         (SimpleViewPortTest.test_default_size): Add doc-strings
+         (ViewPortTest.setUp): Bind map to self.map so we can use it in
+         tests. Subscribe to MAP_REPLACED messages too.
+         (ViewPortTest.tearDown): No need to explicitly unsubscribe
+         (ViewPortTest.test_set_map): New test for the SetMap method.
+-07-18  Bernhard Herzog  <[email protected]>
+         * test/test_viewport.py (SimpleViewPortTest.test_default_size):
+         Move this test from ViewPortTest.setUp to this new separate test
+         case. setUp is not the place for the actual tests.
+         (ViewPortTest.test_inital_settings, ViewPortTest.setUp): Move some
+         more of the test from setUp to the new test test_inital_settings.
+         (ViewPortTest.test_win_to_proj, ViewPortTest.test_proj_to_win)
+         (ViewPortTest.test_proj_conv): Split test_proj_conv into
+         test_win_to_proj and test_proj_to_win and make the tests easier to
+         understand
+         (ViewPortTest.testFitRectToWindow, ViewPortTest.testZoomFactor)
+         (ViewPortTest.testZoomOutToRect, ViewPortTest.testTranslate)
+         (ViewPortTest.test_unprojected_rect_around_point)
+         (ViewPortTest.test_find_shape_at, ViewPortTest.testTools):
+         Reformat to increase readability.
+-07-18  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/view.py (MapCanvas.OnLeftDown): Capture the mouse.
+-07-18  Bernhard Herzog  <[email protected]>
+         * test/runtests.py: The test suite can now be run without an X
+         connection. To make sure this remains true, remove the DISPLAY
+         environment variable so that an error occurs if the wxGTK is
+         imported accidentally
+-07-18  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/viewport.py: Remove unused imports
+         * Thuban/UI/view.py: Remove unused imports
+-07-18  Bernhard Herzog  <[email protected]>
+         * test/test_export.py Remove unused imports. The OutputTransform
+         function is now in viewport.py and is called output_transform
+         (TestScalebar.test_output_transform)
+         (TestScalebar.test_OutputTransform): Renamed to
+         test_output_transform and updated to use output_transform instead
+         of OutputTransform
+         * Thuban/UI/view.py (OutputTransform): Moved to viewport.py and
+         renamed.
+         (MapCanvas.Export, MapPrintout.draw_on_dc): OutputTransform was
+         renamed to output_transform
+         * Thuban/UI/viewport.py (OutputTransform, output_transform):
+         Rename to output_transform
+-07-18  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.__init__): Rename
+         classificationField to classificatin_column and init it here so
+         that it can be used in SetClassificationColumn
+         (Layer.GetClassificationColumn, Layer.GetClassificationField):
+         Rename to GetClassificationColumn.
+         (Layer.SetClassificationColumn, Layer.SetClassificationField):
+         Rename to SetClassificationColumn and issue a LAYER_CHANGED
+         message if the column changes.
+         (Layer._classification_changed, Layer.ClassChanged): Rename to
+         _classification_changed. Update the callers.
+         (Layer.SetShapeStore): Further field->column renames.
+         * Thuban/Model/load.py (SessionLoader.start_classification)
+         (SessionLoader.start_clpoint): Updates because of
+         field->column method name changes in the Layer class
+         * Thuban/Model/save.py (SessionSaver.write_classification): Updates
+         because of field->column method name changes in the Layer class
+         * Thuban/UI/classifier.py (Classifier.__init__)
+         (Classifier._OnTry, Classifier._OnRevert): Updates because of
+         field->column method name changes in the Layer class
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Updates
+         because of field->column method name changes in the Layer class
+         * Thuban/UI/viewport.py (ViewPort.find_shape_at): Updates because
+         of field->column method name changes in the Layer class
+         * test/test_save.py (SaveSessionTest.testClassifiedLayer)
+         (SaveSessionTest.testClassifiedLayer): Update because of
+         field->column method name changes in the Layer class
+         * test/test_layer.py (SetShapeStoreTests.setUp)
+         (SetShapeStoreTests.test_sanity): Update because of field->column
+         method name changes in the Layer class
+         (TestLayerModification.setUp): Subscribe to LAYER_CHANGED as well
+         (TestLayerModification.test_sanity)
+         (TestLayerModification.test_initial_settings): remove unsued code
+         and rename to test_sanity.
+         (TestLayerModification.test_set_classification): New test for
+         SetClassification and SetClassificationField.
+-07-18  Bernhard Herzog  <[email protected]>
+         * test/test_classgen.py (TestFixedRamp.test): Extend test to check
+         the non-fixed values as well. The old test would have accepted a
+         fixed ramp that only returnes the fixed properties
+-07-17  Jonathan Coles   <[email protected]>
+         * Doc/manual/mainwindow.png, Doc/manual/mainwindow.xcf: Screen
+         shots for the manual. The XCF file is the source image and
+         has additional layers to support changes.
+         * Doc/manual/thuban-manual.xml: Wrote an initial Introduction.
+         * Thuban/UI/classifier.py (Classifier.__BuildClassification):
+         Return both the new class and the field name.
+         * Thuban/UI/mainwindow.py (MainWindow.ToggleLegend): Don't
+         fit the map to the window as this changes any zoom level that
+         the user may have set.
+-07-16  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py (generate_singletons,
+         generate_uniform_distribution, generate_quantiles): Remove
+         fixes parameter, but maintain the same functionality by having
+         the calling function pass a FixedRamp object for the ramp.
+         (FixedRamp): New. Adapts a ramp to have fixed property values.
+         * Thuban/Model/classification.py: Use new CLASS_CHANGED message.
+         (Classification): Inherit from Publisher.
+         (Classification.__init__): Remove the layer parameter.
+         Classifications no longer need to have a parent layer.
+         (Classification.GetField, Classification.GetFieldType,
+         Classification.SetFieldInfo): Removed. The field name is stored
+         in the layer, and the type can be retreived by calling
+         Layer.GetFieldType().
+         (Classification._set_layer, Classification.GetLayer): Removed.
+         Classifications no longer have a parent layer.
+         * Thuban/Model/layer.py (Layer.Destroy): Unsubscribe from the
+         classification.
+         (Layer.SetShapeStore): Reset the classification first while
+         we still have the old shape store to work with.
+         (Layer.GetClassificationField, Layer.SetClassificationField):
+         New. Method for getting/setting the field to classify on.
+         (Layer.SetClassification): Simplified now that the layer
+         simply has to hold a reference to the classification and not
+         tell the classification who owns it.
+         Fixes RTbug #2023.
+         * Thuban/Model/load.py (SessionLoader.start_classification):
+         Set the field name on the layer, not the classification.
+         * Thuban/Model/messages.py: Add CLASS_CHANGED for when a
+         classification is modified.
+         * Thuban/Model/save.py (SessionSaver.write_classification):
+         Get the field name and type from the layer.
+         * Thuban/Model/table.py (table_to_dbf, table_to_csv): Renamed
+         parameter records to rows and add docstring. Fixes RTbug #1997.
+         * Thuban/UI/classgen.py (ClassGenDialog.OnOK): Use a fixed
+         ramp when we need to fix certain values of a ramp rather than
+         using the old fixes parameter. Fixes RTbug #2024.
+         * Thuban/UI/classifier.py (ClassGrid.CreateTable): Add fieldType
+         parameter.
+         (ClassTable.Reset): Add fieldType parameter and use it, rather
+         than asking the classification.
+         (Classifier.__init__): Remember the original class's field
+         and ask the layer for the field type, rather than the classification.
+         (Classifier.__SetGridTable): Retrieve the field and field type
+         for the table because they are not in the classification.
+         (Classifier._OnTry, Classifier._OnRevert): Set the classification
+         field on the layer in addition to the classification itself.
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Get the
+         classification field from layer.
+         * Thuban/UI/viewport.py (ViewPort.find_shape_at): Get the
+         classification field from layer. Split up tests and remove
+         *-imports. Fixes RTbug #1992.
+         * test/test_classgen.py (TestFixedRamp): Test for the FixedRamp class.
+         * test/test_classification.py
+         (TestClassification.test_classification): Remove tests for methods
+         that no longer exist.
+         * test/test_layer.py (SetShapeStoreTests.setUp): Classification
+         __init__ no longer has a field parameter, use SetClassificationField.
+         (SetShapeStoreTests.test_sanity): Use layer object to get class
+         field info.
+         * test/test_save.py (SaveSessionTest.testClassifiedLayer): Use
+         SetClassificationField on layer to set class field info.
+         * test/test_viewport.py: Renamed from test/test_view.py.
+-07-16  Jan-Oliver Wagner <[email protected]>
+         * Doc/manual/thuban-manual.xml: Added authors and an initial
+         coarse structure.
+-07-15  Bernhard Herzog  <[email protected]>
+         * test/support.py (FloatComparisonMixin): This is a mix-in class
+         and therefore should not be derived from any other class.
+         * test/test_range.py (RangeTest): FloatComparisonMixin is a
+         mix-in, so derive from TestCase as well.
+-07-15  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Rework the
+         draw_func handling a bit to remove one layer of indirection. This
+         makes the renderer about 10% faster in the non-classifying case
+         and the code a bit cleaner
+         (MapRenderer.draw_point_shape): Add the pen and brush parameters
+         and set them in the dc. Now the draw_point_shape method and
+         wxproj's draw_polygon_shape function have basically the same
+         signature so that both can be directly used as draw_func
+-07-15  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/save.py (SessionSaver.write_classification): Encode
+         string values (in addition to the labels) as UTF 8
+         * Thuban/Model/load.py (SessionLoader.start_clpoint): Decode the
+         values if the field type is string
+         * test/test_save.py (SaveSessionTest.testClassifiedLayer): Test
+         saving a session with non-ascii string classification values.
+         * test/test_load.py (TestClassification.file_contents)
+         (TestClassification.test): Check for non-ascii values in string
+         classifications
+-07-14  Jonathan Coles   <[email protected]>
+         * test/test_view.py: New. Tests for ViewPort.
+-07-14  Frank Koormann   <[email protected]>
+         * Thuban/Model/load.py (SessionLoader.start_map): Encode map
+         title to latin1.  Fixes https://intevation.de/rt/webrt?serial_num=2013
+         * test/test_load_0_8.py (TestUnicodeStrings): New, test load of
+         unicode strings from session file: session title, map title and
+         projection name.
+-07-10  Jonathan Coles   <[email protected]>
+         * Thuban/UI/viewport.py (Tool.MouseUp): Should have called
+         drag_stop, not drag_move when the mouse is released.
+-07-10  Jonathan Coles   <[email protected]>
+         The most important part of this is the seperation of view.py into
+         two pieces. viewport.py now has a class called ViewPort which
+         contains all the non-wx parts of view.py and can therefore be
+         tested. view.py contains only the wx-specific parts and is fairly
+         simple.
+         * Thuban/UI/view.py: Stripped out all non-wx functionality. Fixes
+         RTTbug #1992.
+         * Thuban/UI/viewport.py: New. Contains non-wx view functionality.
+         RTTbug #1992.
+         * Thuban/Model/classgen.py (generate_singletons,
+         generate_uniform_distribution, generate_quantiles):
+         Added 'fixes' parameter so that property attributes can
+         be held constant over the generated classification groups.
+         (CustomRamp.GetProperties): Remove unused variables.
+         * Thuban/Model/map.py (Map.SetProjection): Send the old
+         projection as an argument to listeners of the MAP_PROJECTION_CHANGED
+         event.
+         * Thuban/Model/table.py (table_to_dbf, table_to_csv): Added 'records'
+         parameter which is a list of records that restricts which
+         records are saved. Fixes RTbug #1997.
+         * Thuban/UI/application.py (ThubanApplication.ShowExceptionDialog):
+         Port exception dialog from GREAT-ER. Fixes RTbug #1993.
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__): Add controls
+         to allow the user to fix line color/width on generated groups.
+         (ClassGenDialog.OnOK): Use new 'fixes' parameter of the generate_*
+         functions to optionally fix group properties.
+         * Thuban/UI/main.py (main): Set exception hook to the
+         ShowExceptionDialog. Fixes RTbug #1993.
+         * Thuban/UI/mainwindow.py (MainWindow.ShowTableView): Raise
+         the table window when it is selectd to be shown.
+         * Thuban/UI/tableview.py (QueryTableFrame.__init__): Add an
+         Export Selection button and move the export buttons underneath
+         the table.
+         (QueryTableFrame.UpdateStatusText): Added event argument so
+         that it can respond to grid selection events. The status text
+         is now updated even when the table is not associated with a
+         layer as was previously assumed.
+         (QueryTableFrame.OnGridSelectRange, OnGridSelectCell): Removed.
+         UpdateStatusText responds to these events.
+         (QueryTableFrame.OnSaveAs): Renamed to doExport.
+         (QueryTableFrame.doExport): Helper function that saves the
+         entire table, or selected rows, to a file.
+         (QueryTableFrame.OnExport, QueryTableFrame.OnExportSel): New.
+         Respond to export button events and call doExport.
+         * extensions/thuban/gdalwarp.cpp (ProjectRasterFile): Make sure
+         the function doesn't return NULL without first setting a Python
+         Error.
+         * test/runtests.py (main): Only print "Unknown option" for
+         unsupported options.
+         * test/support.py (FloatComparisonMixin.assertFloatEqual): Take
+         optional epsilon argument to specify floating point accuracy.
+         (FloatComparisonMixin.assertFloatSeqEqual): Call assertFloatEqual
+         for each item test.
+         * test/test_csv_table.py (TestCSVTable.test_table_to_cvs): Add
+         tests for saving selected records.
+         * test/test_dbf_table.py (TestTableToDBF.test_table_to_dbf): Add
+         tests for saving selected records.
+         * test/test_map.py (TestMapWithContents.test_set_projection):
+         MAP_PROJECTION_CHANGED events send the old projection.
+         * test/test_session.py
+         (TestSessionWithContent.test_forward_map_projection):
+         MAP_PROJECTION_CHANGED events send the old projection.
+         * test/test_table.py (TableTest): Update tests to use non-deprecated
+         functions.
+-07-08  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/transientdb.py (TransientTableBase.Width): The type
+         constants in the column objects are the standard ones defined in
+         the table module.
+         * test/test_transientdb.py
+         (TestTransientTable.test_transienttable_to_dbf): New. Test whether
+         exporting transient tables as DBF works. This should catch the bug
+         just fixed in TransientTableBase.Width.
+-07-08  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/classgen.py (CustomRamp.GetProperties): Compute the
+         interpolated colors correctly.
+         * test/test_classgen.py (TestCustomRamp.test_color_interpolation):
+         New. Test case for the fix in classgen.py
+-07-08  Bernhard Herzog  <[email protected]>
+         * test/runtests.py (main): Make the default output less verbose
+         and add a verbosity option (-v) to get the old output
+-07-08  Bernhard Herzog  <[email protected]>
+         * Resources/XML/thuban-0.9.dtd: New. This will become the DTD for
+.9.
+         * Thuban/Model/transientdb.py (TransientJoinedTable.JoinType):
+         New. Return the join type
+         * Thuban/Model/save.py (SessionSaver.write_session): Use new 0.9
+         DTD
+         (SessionSaver.write_data_containers): Save the join type for
+         joined tables
+         * Thuban/Model/load.py (SessionLoader.__init__): Add the new 0.9
+         namespace
+         (SessionLoader.start_jointable): Handle the jointype attribute
+         * test/test_load_0_8.py: New. Effectively a copy of test_load.py
+         as of Thuban 0.8. These are now tests to determine whether Thuban
+         can still read files generated by Thuban 0.8
+         * test/test_load.py (LoadSessionTest.dtd)
+         (TestSingleLayer.file_contents)
+         (TestLayerVisibility.file_contents, TestLabels.file_contents)
+         (TestLayerProjection.file_contents)
+         (TestRasterLayer.file_contents, TestJoinedTable.file_contents)
+         (TestJoinedTable.file_contents)
+         (TestLoadError.file_contents): Update for new DTD
+         (TestJoinedTable.file_contents, TestJoinedTable.setUp): Add test
+         for new join type attribute
+         * test/test_save.py (SaveSessionTest.dtd)
+         (SaveSessionTest.testEmptySession)
+         (SaveSessionTest.testSingleLayer)
+         (SaveSessionTest.testLayerProjection)
+         (SaveSessionTest.testRasterLayer)
+         (SaveSessionTest.testClassifiedLayer)
+         (SaveSessionTest.test_dbf_table)
+         (SaveSessionTest.test_joined_table): Update for new DTD
+         (SaveSessionTest.test_joined_table): Add test for new join type
+         attribute
+-07-04  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/table.py (_find_dbf_column_names): New. Helper
+         function for table_to_dbf
+         (table_to_dbf): Deal with names longer than the 10 character limit
+         * test/test_dbf_table.py (TestTableToDBF.test_table_to_dbf): Add
+         doc-string
+         (TestTableToDBF.test_table_to_dbf_long_col_names): New test for
+         long column names
+-07-03  Bernhard Herzog  <[email protected]>
+         * Doc/manual/thuban-manual.xml: Fix the CVS Revision Tag syntax
+-07-03  Bernhard Herzog  <[email protected]>
+         * Doc/manual/thuban-manual.xml, Doc/manual/README: New. Skeleton
+         for the Thuban manual and README with some basic information about
+         the manual
+-07-03  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/transientdb.py (TransientJoinedTable.__init__):
+         Update doc-string
+         (TransientJoinedTable.create): Do not modify the column objects of
+         the input tables in place and copy all columns of the input tables
+         into the joined table after all.
+         * test/test_transientdb.py
+         (TestTransientTable.test_transient_joined_table_same_column_name):
+         Update to reflect the new behavior
+         (TestTransientTable.test_transient_joined_table_with_equal_column_names):
+         Update to reflect the new behavior
+         (TestTransientTable.test_transient_joined_table_name_collisions_dont_modify_in_place):
+         New test case for a bug which modified the column objects in place
+-07-02  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py (generate_singletons,
+         generate_uniform_distribution, generate_quantiles,
+         GenQuantiles0): Make sure maxValue isn't less than
+         one, otherwise we could divide by zero.
+         * test/test_classgen.py (ClassGenTest.doClassRangeTest,
+         ClassGenTest.doClassSingleTest): Call doBoundsTest to
+         check the end classification groups against the
+         proper property values.
+         (ClassGenTest.doBoundsTest): New. Checks the first and
+         last classification groups to make sure their properties
+         are the correct upper and lower bounds for a color ramp.
+-07-02  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py (generate_singletons,
+         generate_uniform_distribution, generate_quantiles,
+         GenQuantiles0): The denominator was one to high when
+         calculating the index for the ramp causing the index
+         to never to reach one.
+-07-02  Jonathan Coles   <[email protected]>
+         Changed the singature of ClassGroupRange.__init__ and
+         ClassGroupRange.SetRange() so that the min/max values are
+         passed as a tuple. This makes a better calling scheme for
+         when a Range object is passed instead.
+         * Thuban/Model/classgen.py: Fixed parameters to
+         ClassGroupRange constructor.
+         * Thuban/Model/classification.py (ClassGroupRange.__init__):
+         Consolidate the min/max parameters into a single _range which
+         can either be a tuple or a Range object.
+         (ClassGroupRange.SetRange): Consolidate the min/max parameters
+         into a single _range which can either be a tuple or a Range object.
+         * Thuban/Model/load.py (SessionLoader.start_clrange): Fix
+         call to ClassGroupRange constructor to use a tuple.
+         * Thuban/Model/layer.py (Layer.SetClassification): Switch
+         the classification instance variable to the new class
+         before calling _set_layer otherwise subscribers to a
+         LAYER_CHANGED event will not see any difference.
+         * test/test_classification.py: Fix tests of ClassGroupRange
+         so that they use the new signature.
+         * test/test_load.py: Fix use of ClassGroupRange so that it
+         uses the new signature.
+         * test/test_load_0_2.py: Fix use of ClassGroupRange so that it
+         uses the new signature.
+         * test/test_save.py: Fix use of ClassGroupRange so that it
+         uses the new signature.
+-07-01  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py: Fixes RTbug #1972, 1971.
+         Import used objects/class from color.
+         (generate_singletons): We don't
+         need the numGroups parameter anymore because we are using
+         the new ramps with GetProperties().
+         (generate_uniform_distribution): Use new ramp method
+         GetProperties().
+         (generate_quantiles, GenQuantiles0): Use new ramp method
+         GetProperties().
+         (CustomRamp.SetNumGroups): Removed. The ramps now map
+         a value from 0 to 1 to class properties so the number
+         of groups is not needed ahead of time.
+         (CustomRamp.next): Removed. CustomRamp does not support
+         interation anymore.
+         (CustomRamp.GetProperties): Returns a ClassGroupProperties
+         object based on the index value from 0 to 1 that is
+         passed to it.
+         (GreyRamp, RedRamp, GreenRamp, BlueRamp, GreenToRedRamp):
+         Made into instances of Monochromatic class instread of
+         deriving from it.
+         (HotToCold.SetNumGroups): Removed. See CustomRamp.
+         (HotToCold.next): Removed. See CustomRamp.
+         * Thuban/Model/classification.py: Fixes RTbug #1973, 1971.
+         (Classification.SetField, Classification.SetFieldType):
+         Replaced with SetFieldInfo.
+         (Classification.SetFieldInfo): New. Does a better job of
+         what SetField and SetFieldType used to do by combining
+         their function since they should really always be done
+         at the same time.
+         (Classification.SetLayer): Renamed to _set_layer.
+         (Classification._set_layer): Should only be called from
+         Layer's SetClassification. This does not cause a recursive
+         call as SetLayer did because we know that Layer knows about
+         the classification.
+         * Thuban/Model/color.py: Fixes RTbug #1971.
+         (_Transparent): Renamed from Transparent so it doesn't
+         conflict with the module variable.
+         (Transparent, Black): Renamed from Color.Transparent,
+         Color.Black so they are not class variables.
+         * Thuban/Model/layer.py: Fixes RTbug #1971, 1973.
+         (Layer.Destroy): We don't need to call SetClassification
+         anymore to clear out the back reference in the classifcation
+         to the layer. It's better to set it to None using _set_layer,
+         and we won't be creating another clas object too.
+         (Layer.SetClassification): Classification._set_layer is not
+         recursive so remove all the locking variables. Also clean
+         up the code so that it remains unchanged if something fails.
+         * Thuban/Model/load.py: Fixes RTbug #1971.
+         (SessionLoader.start_classification): Call
+         Classification.SetFieldInfo().
+         * Thuban/Model/save.py: Removed import of Color which wasn't
+         being used.
+         * Thuban/UI/classgen.py: Fixes RTbug #1972.
+         (ClassGenDialog.__init__): Color ramps are now instances
+         already so we don't need to create any new objects.
+         (ClassGenDialog.OnOK): Check for numGroups is no longer
+         necessary because we never use it.
+         * Thuban/UI/classifier.py: Fixes RTbug #1971.
+         (Classifier.__BuildClassification, Classifier.__SetGridTable):
+         Call Classification.SetFieldInfo() instead of SetFieldType.
+         * Thuban/UI/renderer.py: Fixes RTbug #1971.
+         * Thuban/UI/view.py: Fixes RTbug #1974, 1971.
+         (MapCanvas.__init__): Subscribe to the idle time event. Set
+         background color to white.
+         (MapCanvas.OnPaint): Set a flag indicating that we should
+         render the map during idle time. If we already have a bitmap
+         just draw it now.
+         (MapCanvas.OnIdle): New. Render the map only during idle time.
+         This also fixes a problem with the busy cursor under gtk.
+         * test/test_classgen.py (ClassGenTest.test_generate_singletons):
+         Fix calls to generate_singletons because the signature changed.
+         * test/test_classification.py: Fix color references and
+         change calls to Classification.[SetField|SetFieldType] to
+         SetFieldInfo.
+         * test/test_load.py: Fix color references.
+         * test/test_load_0_2.py: Fix color references.
+         * test/test_save.py (SaveSessionTest.testClassifiedLayer):
+         Change calls to Classification.[SetField|SetFieldType] to
+         SetFieldInfo.
+-07-01  Frank Koormann   <[email protected]>
+         MERGE from the greater-ms3 branch.
+         * test/test_transientdb.py
+         (TestTransientTable.test_transient_joined_table_with_equal_column_names):
+         New. Test join of two tables with partly equal column names.
+         * Thuban/Model/transientdb.py (TransientJoinedTable.create):
+         If duplicates in left and right tables column names are found,
+         append '_' (underscores) to the name until it is unique.
+         Create always new internal names for the resulting table and reference
+         columns in the join statement with <table>.<column>
+-07-01  Bernhard Herzog  <[email protected]>
+         * test/test_transientdb.py
+         (TestTransientTable.test_transient_joined_table_same_column_name):
+         New. Test whether joining on columns with the same names in both
+         tables works.
+         * Thuban/Model/transientdb.py (TransientJoinedTable.create): Make
+         sure to use the right internal names even when joining on field
+         with the same names in both tables. Also, detect duplicate names
+         in the joined table correctly.
+-07-01  Frank Koormann   <[email protected]>
+         * Thuban/UI/renderer.py (ExportRenderer.render_legend):
+         Reverse List of layers to render in same order as in desktop legend.
+-06-30  Jonathan Coles   <[email protected]>
+         * Thuban/version.py (make_tuple): Takes a version string
+         and splits it into a tuple of at most three integers.
+         Used make_tuple() to make tuple versions of the version
+         numbers.
+         * Thuban/UI/about.py: Add Thuban email addresses.
+-06-30  Jonathan Coles   <[email protected]>
+         * Thuban/version.py: SQLite/PySQLite version dependencies
+         were too high.
+-06-30  Jonathan Coles   <[email protected]>
+         * Thuban/version.py: Update version to 0.8.1
+         * MANIFEST.in: Added Projections so that default.proj is
+         included.
+-06-26  Jonathan Coles   <[email protected]>
+         New About box with lots more information including library
+         versions and credits. More/better version checking before
+         Thuban starts.
+         * Thuban/UI/about.py: New. New About box that displays
+         library version information and credits.
+         * Thuban/version.py: Added new 'versions' dictionary which
+         contains the verions of various libraries which are checked
+         when the module loads.
+         (verify_versions): Check all version numbers and returns
+         a list of errors.
+         * Thuban/UI/classifier.py (Classifier.__EnableButtons):
+         Reset the status of the buttons as the situation warrants,
+         but in a better more reliable way by not relying on the
+         current status to determine what needs to change.
+         * Thuban/UI/main.py (wxCHECK_VERSION): Removed. Not needed.
+         (verify_versions): Remove most of the code since it is
+         now in Thuban.version.verify_versions.o
+         * Thuban/UI/mainwindow.py (MainWindow.About): Call new
+         About box in Thuban.UI.about.
+         * extensions/thuban/gdalwarp.cpp (get_gdal_version): New.
+         Returns the version of gdal library being used as a string.
+         * extensions/thuban/wxproj.cpp (check_version, check_version_gtk):
+         Removed.
+         (get_proj_version): Return the version of PROJ that the file
+         was compiled with.
+         (get_gtk_version): Return th version of GTK that the file
+         was compiled with.
+-06-25  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classifier.py (Classifier.EditSymbol): The parent
+         of the SelectPropertiesDialog should be self so the window
+         appears on top.
+         (ClassGroupPropertiesCtrl.DoEdit): The parent
+         of the SelectPropertiesDialog should be self so the window
+         appears on top.
+         * Thuban/UI/resource.py: Cleaned up how we determine file
+         extensions.
+         (GetImageResource): Return an wxImage from our Resources.
+-06-24  Jonathan Coles   <[email protected]>
+         * Thuban/UI/renderer.py (ExportRenderer.render_legend):
+         Check that a layer has a classification before trying
+         to get it. Raster layers don't have classifications.
+-06-23  Jonathan Coles   <[email protected]>
+         * setup.py: Add Resources/XML to resource list.
+-06-23  Jonathan Coles   <[email protected]>
+         * setup.cfg: Fix copyright dates
+-06-23  Jonathan Coles   <[email protected]>
+         * MANIFEST.in: Update with Resources/XML
+         * setup.py: Don't include Locale resources yet as we don't
+         have any and it causes problems building the distribution
+         for Windows. Update version to 0.8.0.
+         * Doc/thuban.dtd: Removed since it is now in Resources/XML.
+         * Thuban/UI/mainwindow.py: Add blank line at the end because
+         file was not being read correctly building the Windows
+         distribution.
+-06-23  Jonathan Coles   <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.About): Fix text.
+         * Thuban/version.py: Temporarily update longversion for
+         the 0.8 release so that it doesn't have the cvs revision.
+-06-23  Jonathan Coles   <[email protected]>
+         * Thuban/UI/common.py (ThubanBeginBusyCursor): Call wxSafeYield
+         to make sure that we don't create reentrant possibilities with
+         wxYield.
+         * Thuban/UI/view.py (MapCanvas.OnPaint): Call wxBeginBusyCursor()
+         directly to avoid the wxSafeYield() call which generates an
+         OnPaint event causing infinite recursion. Don't try to catch
+         exception anymore. This was for before there were limits on map
+         scaling.
+-06-23  Bernhard Herzog  <[email protected]>
+         Bug fix for RT #1961:
+         * Thuban/Model/load.py (SessionLoader.start_derivedshapesource):
+         Register DerivedShapestores with the session
+         * Thuban/Model/session.py (Session.Tables): Make sure each table
+         is only listed once.
+         * test/test_load.py (TestJoinedTable.test): Add check_format call.
+         Update file contents to match the one written out.
+-06-20  Bernhard Herzog  <[email protected]>
+         * test/xmlsupport.py (SaxEventLister.startElementNS)
+         (SaxEventLister.endElementNS): Do not include the qname. Python
+.2.1 and 2.2.2 and 2.2.3 differ in this regard. In 2.2.1 qname it
+         is (presumably incorrectly) None, whereas it's a string with the
+         element name in the later versions.
+         * test/test_xmlsupport.py (TestEventList.test_even_list_simple)
+         (TestEventList.test_even_list_namespace): Update tests to reflect
+         the new behaviour
+         (TestEventList.test_even_list_id_normalization): Fix doc-string
+-06-20  Jonathan Coles   <[email protected]>
+         * Thuban/Model/layer.py (BaseLayer.HasShapes): New. Overridden
+         by deriving classes to determine if that layer supports shapes.
+         (Layer): Override HasShapes and return true.
+         * Thuban/UI/classgen.py: Use Thuban[Begin|End]BusyCursor()
+         instead of a direct call to wx[Begin|End]CusyCursor().
+         (GenUniquePanel._OnRetrieve): Set busy cursor while retrieving
+         table data.
+         * Thuban/UI/common.py (ThubanBeginBusyCursor, ThubanEndBusyCursor):
+         New. Wrappers around the wxWindows functions that allow us to
+         make additional calls such as wxYield which gives the native
+         system a chance to update the cursor correctly.
+         * Thuban/UI/tableview.py: Use Thuban[Begin|End]BusyCursor()
+         instead of a direct call to wx[Begin|End]CusyCursor().
+         * Thuban/UI/view.py: Use Thuban[Begin|End]BusyCursor()
+         instead of a direct call to wx[Begin|End]CusyCursor().
+         (MapCanvas.find_shape_at): Check if the current search layer
+         support shapes, otherwise go on to the next layer.
+         * test/test_layer.py: Add tests in each type of layer for
+         HasClassification() and HasShapes()
+-06-20  Jonathan Coles   <[email protected]>
+         * Thuban/UI/view.py (MapCanvas.OnPaint): Call wxYield after
+         turning on the busy cursor to allow the system to change the
+         cursor before we begin painting. This fixes a problem that
+         was occuring only under GTK. Fixes RTbug #1840.
+-06-20  Bernhard Herzog  <[email protected]>
+         * Resources/XML/thuban-0.8.dtd: New DTD for the new file format
+         version.
+         * Thuban/Model/save.py (sort_data_stores): New. Make topological
+         sort of the data sources so they can be written with sources that
+         data sources that depend on other data sources come after the
+         sources they depend on.
+         (SessionSaver.__init__): Add idmap instance variable to map from
+         objects to the ids used in the file.
+         (SessionSaver.get_id, SessionSaver.define_id)
+         (SessionSaver.has_id): New. Methods to manage the idmap
+         (SessionSaver.write): Use thuban-0.8.dtd
+         (SessionSaver.write_session): Add a namespace on the session and
+         write out the data sources before the maps.
+         (SessionSaver.write_data_containers): New. Write the data
+         containers.
+         (SessionSaver.write_layer): Layer elements now refer to a
+         shapestore and don't contain filenames anymore.
+         * Thuban/Model/load.py (LoadError): Exception class to raise when
+         errors in the files are discovered
+         (SessionLoader.__init__): Define dispatchers for elements with a
+         thuban-0.8 namespace too.
+         (SessionLoader.check_attrs): New helper method to check and
+         convert attributes
+         (AttrDesc): New. Helper class for SessionLoader.check_attrs
+         (SessionLoader.start_fileshapesource)
+         (SessionLoader.start_derivedshapesource)
+         (SessionLoader.start_filetable, SessionLoader.start_jointable):
+         Handlers for the new elements in the new fileformat
+         (SessionLoader.start_layer): Handle the shapestore attribute in
+         addition to filename.
+         (SessionLoader.start_table, SessionLoader.end_table): Removed.
+         They were never used in the old formats and aren't needed for the
+         new.
+         * Thuban/Model/session.py (Session.DataContainers): New method to
+         return all "data containers", i.e. shapestores and tables
+         * test/xmlsupport.py (SaxEventLister.__init__)
+         (SaxEventLister.startElementNS, sax_eventlist): Add support to
+         normalize IDs.
+         * test/test_xmlsupport.py
+         (TestEventList.test_even_list_id_normalization): New test case for
+         id normalization
+         * test/test_load.py (LoadSessionTest.check_format): Use ID
+         normalization
+         (LoadSessionTest.thubanids, LoadSessionTest.thubanidrefs): New
+         class atrributes used for ID normalization
+         (TestSingleLayer, TestLayerVisibility, TestLabels.test)
+         (TestLayerProjection.test, TestRasterLayer.test): Adapt to new
+         file format
+         (TestJoinedTable): New test for loading sessions with joined
+         tables.
+         (TestLoadError): New. Test whether missing required attributes
+         cause a LoadError.
+         * test/test_save.py (SaveSessionTest.thubanids)
+         (SaveSessionTest.thubanidrefs): New class attributes for ID
+         normalization in .thuban files.
+         (SaveSessionTest.compare_xml): Use id-normalization.
+         (SaveSessionTest.testEmptySession)
+         (SaveSessionTest.testLayerProjection)
+         (SaveSessionTest.testRasterLayer)
+         (SaveSessionTest.testClassifiedLayer): Adapt to new file format.
+         (SaveSessionTest.testLayerProjection): The filename used was the
+         same as for testSingleLayer. Use a different one.
+         (SaveSessionTest.test_dbf_table)
+         (SaveSessionTest.test_joined_table): New test cases for saving the
+         new data sources structures.
+         (TestStoreSort, MockDataStore): Classes to test the sorting of the
+         data stores for writing.
+         * test/runtests.py: Add CVS keywords
+-06-20  Jonathan Coles   <[email protected]>
+         * test/test_session.py
+         (UnreferencedTablesTests.test_unreferenced_tables_with_joins):
+         Use the cultural_landmark-point.dbf file for the store so that
+         the table rows and shape count match.
+-06-20  Jonathan Coles   <[email protected]>
+         * Thuban/Model/data.py (DerivedShapeStore.__init__): Raise
+         an exception if the number of shapes is different from the
+         number of rows in the table. Address RTbug #1933.
+         * test/test_layer.py (TestLayer.test_derived_store): Add
+         a test for the new exception in DerivedShapeStore.__init__.
+         * test/support.py (FloatTestCase): Removed since there is
+         already FloatComparisonMixin. Fixes RTbug #1954.
+         (FloatComparisonMixin.assertFloatEqual): Include test for
+         infinity that was part of FloatTestCase.
+         * test/test_range.py (RangeTest): Inherit from
+         support.FloatComparisonMixin now that we don't have
+         support.FloatTestCase.
+-06-20  Bernhard Herzog  <[email protected]>
+         * test/test_save.py (SaxEventLister, sax_eventlist): Removed. Use
+         the implementation in xmlsupport instead.
+         (SaveSessionTest.compare_xml): sax_eventlist is now in xmlsupport
+         * test/test_proj.py: Import sax_eventlist from xmlsupport instead
+         of test_save
+-06-20  Bernhard Herzog  <[email protected]>
+         * test/test_load.py (LoadSessionTest.check_format): New helper
+         method to make sure the test files we load might have been written
+         by the current thuban version.
+         (ClassificationTest.TestLayers, TestSingleLayer.test)
+         (TestLayerVisibility.test, TestClassification.test)
+         (TestLabels.test, TestLayerProjection.test, TestRasterLayer.test):
+         Add check_format() calls and fix the thuban data to match the data
+         that would be written by saving the session loaded from it.
+         * test/xmlsupport.py (SaxEventLister, sax_eventlist): Copies of
+         the same class and function in test_save.
+         * test/test_xmlsupport.py (TestEventList): New. test cases for
+         sax_eventlist
+-06-20  Bernhard Herzog  <[email protected]>
+         * Resources/XML/thuban.dtd: Add comment about which versions of
+         Thuban are covered by this DTD
+         (map): Fix content model for layers and raster layers. There can
+         be any number or layers and raster layers in any order.
+-06-20  Jonathan Coles   <[email protected]>
+         This is mainly about fixing RTbug #1949.
+         * Thuban/Model/classification.py: Remove "from __future__"
+         import statement since python 2.2 is the earliest supported
+         version.
+         * Thuban/Model/proj.py (Projection.GetProjectedUnits): New.
+         Currently returns PROJ_UNITS_METERS or PROJ_UNITS_DEGREES
+         depending on the units this projection *forwards* into.
+         * Thuban/Model/save.py (SessionSaver.write_classification):
+         Remove unnecessary use of lambdas and nested functions.
+         * Thuban/UI/legend.py (ScaleBarBitmap.__SetScale): Do scale
+         adjustment here if the map projection uses degrees.
+         * Thuban/UI/scalebar.py (ScaleBar.DrawScaleBar): Remove
+         scale adjust code since it is now done before calling
+         this method. Don't do anything if the map projection
+         is None.
+-06-19  Bernhard Herzog  <[email protected]>
+         Move version specific load tests to their own file.
+         * test/test_load.py: Expand the doc-string to explain a bit how to
+         handle file format changes.
+         (TestClassification.test): Update the docstring as this test is
+         not about Thuban 0.2 anymore.
+         * test/test_load_0_2.py: New file with the load tests for thuban
+         files created with Thuban 0.2 and earlier.
+-06-19  Bernhard Herzog  <[email protected]>
+         Add XML validation to some of the tests. Validation will only be
+         done if pyRXP is installed (http://reportlab.com/xml/pyrxp.html).
+         To make the DTD available to the test cases it's moved into
+         Resources/XML
+         * Resources/XML/thuban.dtd: New. This is now the real Thuban DTD
+         for versions up to and including 0.2. Two slight changes: added an
+         encoding specification and fixed the comment which refered to
+         GRASS, not Thuban
+         * test/xmlsupport.py: New support module for tests involving XML.
+         Currently there's a mix-in class for XML validation.
+         * test/test_xmlsupport.py: New. Tests for the xmlsupport module
+         * test/test_save.py (SaveSessionTest): Derive from ValidationTest
+         so that we can validate the
+         (SaveSessionTest.testEmptySession)
+         (SaveSessionTest.testSingleLayer)
+         (SaveSessionTest.testSingleLayer)
+         (SaveSessionTest.testLayerProjection)
+         (SaveSessionTest.testRasterLayer)
+         (SaveSessionTest.testClassifiedLayer): Validate the generated XML
+         * test/runtests.py (main): Call print_additional_summary instead
+         of print_garbage_information
+         * test/support.py (resource_dir): New function to return the
+         "Resource" subdirectory
+         (print_additional_summary): New function to combine several
+         summary functions
+         (run_tests): Use print_additional_summary instead of calling
+         print_garbage_information directly
+-06-19  Bernhard Herzog  <[email protected]>
+         * Doc/thuban.dtd (classification): Correct the content model of
+         the classification element.
+         (projection): Add the "name" attribute
+-06-19  Frank Koormann   <[email protected]>
+         MERGE from the greater-ms3 branch.
+         * Thuban/UI/scalebar.py (ScaleBar.DrawScaleBar): Apply conversion to
+         scale if projection is latlong to get better estimate.
+         Fix problem of hidden properties dialog under windows after double
+         click on layer tree:
+         The tree control always gets an Expanded / Collapsed event after
+         the ItemActivated  on double click, which raises the main window again.         We add a second ItemActivated event to the queue, which simply
+         raises the already displayed window.
+         * Thuban/UI/legend.py (LegendTree.__init__): Instance variable
+         raiseProperties initialized to prevent endless loops
+         (LegendTree._OnItemActivated): Depending on self.raiseProperties
+         simply raise the properties or open the dialog and issue a second
+         event.
+-06-18  Jonathan Coles   <[email protected]>
+         * setup.py: Fix a few problems that occured under Windows.
+-06-18  Jonathan Coles   <[email protected]>
+         When Thuban loaded the map was redrawn twice because the
+         legend was being opened after the mainwindow was created
+         and not during its creation. This meant the map was drawn
+         initially and then had to be redrawn when the legend
+         caused the display to change. Now the legend is opened
+         in the mainwindow constructor which resolves this issue.
+         Also, although we were checking for the existence of
+         gdal and gdalwarp modules, the gdalwarp extension was
+         still being compiled (which may fail if the system doesn't
+         have gdal installed). the build_ext command to setup.py
+         now accepts the flags --with-gdal and --without-gdal.
+         If --without-gdal is specified setup.py will try to
+         use the gdal parameters specified by gdal-config. Under
+         windows, those parameters have to be set in setup.py
+         as with proj4 an wxWindows.
+         * setup.py: Use a list instead of seperate variables for
+         extension parameters so we can create a generic function
+         that runs an appropriate *-config script.
+         (run_cs_script): Renamed from run_wx_script and modified
+         to accept a second argument which is a list of lists to
+         be filled in by the values returned from running the command.
+         (thuban_build_ext): New. Extends the build_ext command and
+         provides the options --with-gdal/--without-gdal which then
+         optionally includes the gdalwarp extension.
+         * Thuban/Model/resource.py: First check if we can import
+         the gdalwarp Thuban extension before checking for gdal.
+         Also added some comments.
+         * Thuban/UI/legend.py (ScaleBarBitmap.__SetScale): Check if
+         the map is None which may be the case if none has been loaded
+         yet.
+         * Thuban/UI/main.py (main): Remove call to ShowLegend.
+         * Thuban/UI/mainwindow.py (MainWindow.__init__): Call ShowLegend().
+         * Thuban/UI/renderer.py: Check for gdal support before importing
+         gdalwarp.
+         (MapRenderer.render_map): Only try to optimize if we have gdal
+         support otherwise nothing will get drawn.
+         * Thuban/UI/view.py (MapCanvas.FitMapToWindow): This may be called
+         during startup before a map has been created. Check if map is None
+         before using it and do nothing if it is.
+-06-17  Jonathan Coles   <[email protected]>
+         Fix the problem with raster layers under Windows that caused
+         Thuban to crash. The view should respond to layer projection
+         changed events to update the display. Changes to a projection
+         should not cause the map to be set to full extent.
+         * Thuban/UI/view.py (MapCanvas.__init__): New instance variable
+         current_map_proj to remember the current map projection so that
+         when the projection changes we know what the previous projection
+         was.
+         (MapCanvas.SetMap): Unsubscribe and subscribe to
+         LAYER_PROJECTION_CHANGED events.
+         (MapCanvas.projection_changed): Split into two methods that respond
+         to map and layer projection changes.
+         (MapCanvas.map_projection_changed): New. Takes the current view and
+         projects it using the new projection. This does not cause the
+         map to be redrawn at full extent.
+         (MapCanvas.layer_projection_changed): New. Cause a redraw which
+         will draw each layer in its new projection.
+         * extensions/thuban/bmpdataset.cpp (BMPDataset::Open): Call
+         VSIFClose() not VSIFCloseL() to close the file. Fixes a crash
+         under Windows.
+         * extensions/thuban/gdalwarp.cpp (MFILENAME): Padding should be
+         to twice sizeof(void*) because there are two digits for each
+         hex byte.
+-06-16  Bernhard Herzog  <[email protected]>
+         Update to the layer interface: Direct access to the table,
+         shapetable, shapefile and filename attributes is now actively
+         deprecated by issuing deprecation warnings for all places where
+         this happens.
+         * Thuban/Model/layer.py (Layer.__getattr__): New. Implement access
+         to the instance variables table, shapetable, shapefile and
+         filename via __getattr__ so that we can issue a deprecation
+         warning.
+         (Layer.SetShapeStore): Don't set the deprecated instance variables
+         any more
+         (Layer.SetShapeStore): Don't use deprecated layer instance
+         variables
+         (Layer.Destroy): No need to explicitly remove the instance
+         variables any more
+         (Layer.GetFieldType, Layer.Shape): Don't use deprecated layer
+         instance variables
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__)
+         (GenUniformPanel._OnRetrieve, GenUniquePanel._OnRetrieve)
+         (GenQuantilesPanel.GetList, GenQuantilesPanel.OnRetrieve): Don't
+         use deprecated layer instance variables
+         * Thuban/UI/classifier.py (Classifier.__init__): Don't use
+         deprecated layer instance variables
+         * Thuban/UI/identifyview.py (IdentifyListCtrl.selected_shape)
+         (IdentifyGridCtrl.selected_shape): Don't set the deprecated layer
+         instance variables
+         * Thuban/UI/tableview.py (LayerTableGrid.select_shapes): Don't use
+         deprecated layer instance variables
+         * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Don't use
+         deprecated layer instance variables
+         * Thuban/Model/save.py (SessionSaver.write_layer): Don't use
+         deprecated layer instance variables
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer)
+         (MapRenderer.polygon_render_param): Don't use deprecated layer instance
+         variables
+         * test/runtests.py (main): Turn Thuban's deprecation warnings into
+         errors so that they're cought by the tests
+         * test/test_load.py (TestSingleLayer.test): Don't use deprecated
+         layer instance variables
+-06-16  Jonathan Coles   <[email protected]>
+         Fix a problem under Windows whereby if the user double-clicks on a
+         layer in the legend that tree item will expand or collapse as well
+         as open the layer properties dialog. The state of the tree item
+         should not be affected.
+         * Thuban/UI/legend.py (LegendTree.__init__): Add instance variable
+         preventExpandCollapse and subscribe to expanding and collapsing
+         events.
+         (LegendTree.OnItemExpandCollapse): New. Responds to expanding and
+         collapsing events and will veto the event if it has been triggered
+         by the user double clicking on a layer.
+         (LegendTree._OnItemActivated): Set preventExpandCollapse to indicate
+         that an expanding/collapsing event should be vetoed.
+-06-13  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/classifier.py (Classifier.OnClose)
+         (Classifier.map_layers_removed)
+         (Classifier.layer_shapestore_replaced): Unsubscribe the messages
+         in OnClose and not in map_layers_removed or
+         layer_shapestore_replaced to make sure it always happens when the
+         dialog is closed
+-06-13  Jonathan Coles   <[email protected]>
+         This puts back a fix for Windows where a panel is needed so that
+         the background of the table view appears correctly.
+         * Thuban/UI/tableview.py (TableFrame.__init__): Add a panel
+         object that can be used by derived classes to place any
+         controls (including the grid) onto.
+         (QueryTableFrame.__init__): Use the panel as the parent window
+         for all the controls. Reparent the grid so that the panel is
+         the parent. Call UpdateStatusText() to correctly initialize
+         the status bar.
+-06-13  Jonathan Coles   <[email protected]>
+         * Thuban/UI/dialogs.py (ThubanFrame): New: a class that inherits
+         from wxFrame (as opposed to wxDialog like the other classes)
+         but otherwise behaves like the other classes. This is needed
+         for the TableView which isn't really a dialog and needs to
+         have a status bar and control buttons.
+         * Thuban/UI/tableview.py (TableGrid.__init__): Create an
+         instance variable to keep track of how many rows are selected.
+         Subscribe once to the the events we are interested in.
+         (ThubanGrid.OnRangeSelect): Only handle event if event handling
+         hasn't been turned off.
+         (ThubanGrid.OnSelectCell): Only handle event if event handling
+         hasn't been turned off.
+         (ThubanGrid.ToggleEventListeners): Rather than subscribe None
+         as an event listener (which changes the event handler stack)
+         simply set an instance variable to False. This is checked in
+         the event handlers.
+         (ThubanGrid.GetNumberSelected): Return the number of currently
+         selected rows.
+         (TableFrame): Inherit from ThubanFrame so we can have a
+         status bar and control buttons.
+         (QueryTableFrame.__init__): Create a status bar. Fixes RTbug #1942.
+         Explicitly set which items are selected in the operator choice and
+         action choice so there is always a valid selection. Fixes RTbug #1941.
+         Subscribe to grid cell selection events so we can update the
+         status bar.
+         (QueryTableFrame.UpdateStatusText): Update the status bar with
+         how many rows are in the grid, how many columns, and how many
+         rows are selected.
+         (QueryTableFrame.OnGridSelectRange, QueryTableFrame.OnGridSelectCell):
+         Call UpdateStatusText when cells are (de)selected.
+         (QueryTableFrame.OnQuery): Use the string value in the value
+         combo if either the selected item index is 0 or if the string
+         cannot be found in the predefined list (this happens if the
+         user changes the text). Fixes RTbug #1940.
+         Only turn off the grid event listeners if there a query comes
+         back with a none empty list of ids. in the case that the list
+         is empty this causes a grid.ClearSelection() call to actually
+         clear the grid selection which causes the selected items in
+         the map to be deselected. Fixes RTbug #1939.
+         * test/test_save.py (XMLWriterTest.Encode): Check return values.
+         Fixes RTbug #1851.
+-06-13  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/identifyview.py (IdentifyView.__init__): Call
+         self.selected_shape with the current selection to make sure the
+         contents of the dialog are up to date when it's shown for the
+         first time.
+         The dialog used to work without this by luck. The recent fix to
+         the connector module 'broke' a 'feature' the identify view was
+         relying on, i.e that subscribing to a message in response to
+         receiving a message of that type would mean that the new
+         subscriber would also be called for the same message.
+-06-12  Jonathan Coles   <[email protected]>
+         * extensions/thuban/gdalwarp.cpp: Removed debug printing as
+         the image is rendered. Fixes RTbug #1937.
+-06-12  Jonathan Coles   <[email protected]>
+         * Thuban/Lib/fileutil.py: As is done under Windows, create the
+         user directory if it doesn't exist on a posix system.
+         Fixes RTbug #1815.
+         * Thuban/Model/resource.py (get_user_proj_files): Moved the
+         called to get_application_dir here, so that the directory
+         will only be called if this method is invoked.
+         * Thuban/UI/projdialog.py (ProjFrame.__DoOnProjAvail): Clear
+         the projfilepath if no projection is selected.
+-06-12  Jonathan Coles   <[email protected]>
+         * Thuban/UI/legend.py (ScaleBarBitmap.__SetScale): Don't draw
+         the scalebar if the current map has no projection set.
+         * Thuban/UI/projdialog.py (ProjFrame.__DoOnProjAvail): Set the
+         projfilepath label to just the basename of the projection file
+         rather than include the entire path.
+         * Thuban/Model/resource.py: Fix missed proj functions that
+         needed to be renamed.
+-06-12  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classification.py: Removed assert statements that
+         tested if the variable was an instance of Color.
+         * Thuban/Model/color.py (Color): Remove commented code that isn't
+         used.
+         (Transparent): Renamed from NoColor. Doesn't inherit from Color.
+         Fixes RTbug #1835.
+         (Transparent.__eq__, Transparent.__ne, Transparent.__repr): New.
+         Needed now that the class doesn't inherit from Color.
+-06-12  Jonathan Coles   <[email protected]>
+         * test/test_save.py (XMLWriterTest.testEncode): Explicitly
+         check unicode strings.
+         * test/test_layer.py: Check for existence of gdal.
+-06-12  Jonathan Coles   <[email protected]>
+         * Thuban/Model/xmlreader.py: New. Contains the XMLReader class
+         that was in load.py
+         * Thuban/Model/xmlwriter.py: New. Contains the XMLWriter class
+         that was in save.py
+-06-12  Jonathan Coles   <[email protected]>
+         This is largely a collection of bug fixes. We also handle the
+         case where gdal is not on the system. The XMLReader and XMLWriter
+         classes were moved into there own files to resolve some circular
+         import references and because they shouldn't really be in the
+         file that is dediciated to reading/writing session files since
+         they are also used elsewhere.
+         * Thuban/Model/classgen.py: Renamed functions to follow the
+         function_names_with_underscores style. Fixes RTbug #1903.
+         (calculate_quantiles): Raise ValueError if 'percents' is invalid.
+         * Thuban/Model/layer.py: Import gdal only if it available.
+         (RasterLayer): Handle the case where the gdal library is unavailable.
+         Addresses RTbug #1877.
+         * Thuban/Model/load.py (XMLReader): Moved into seperate file
+         xmlreader.py.
+-06-12  Jonathan Coles   <[email protected]>
+         This is largely a collection of bug fixes. We also handle the
+         case where gdal is not on the system. The XMLReader and XMLWriter
+         classes were moved into there own files to resolve some circular
+         import references and because they shouldn't really be in the
+         file that is dediciated to reading/writing session files since
+         they are also used elsewhere.
+         * Thuban/Model/classgen.py: Renamed functions to follow the
+         function_names_with_underscores style. Fixes RTbug #1903.
+         (calculate_quantiles): Raise ValueError if 'percents' is invalid.
+         * Thuban/Model/layer.py: Import gdal only if it available.
+         (RasterLayer): Handle the case where the gdal library is unavailable.
+         Addresses RTbug #1877.
+         * Thuban/Model/load.py (XMLReader): Moved into seperate file
+         xmlreader.py.
+         * Thuban/Model/save.py (escape, XMLWriter): Moved into seperate
+         file xmlwriter.py.
+         * Thuban/Model/resource.py: Renamed functions to following the
+         function_names_with_underscores style.
+         (has_gdal_support): New function that returns true if the gdal
+         library is available. Addresses RTbug #1877.
+         * Thuban/UI/application.py (ThubanApplication.OpenSession):
+         Display a message box if the gdal library is not available, but
+         only if there are any layers that would use it. Addresses RTbug #1877.
+         * Thuban/UI/classgen.py: Use renamed projection resource functions.
+         (GenUniformPanel.__CalcStepping): Fix a slight discrepency
+         when using integers versus floats.
+         * Thuban/UI/mainwindow.py (_has_gdal_support): New. Used to
+         determine if the "Add Image Layer" menu option should be
+         greyed out or not. Addresses RTbug #1877.
+         * Thuban/UI/projdialog.py: Use renamed projection resource functions.
+         * Thuban/UI/renderer.py (MapRenderer.render_map): Only try to
+         optimize if a raster layer is visible. Fixes RTbug #1931.
+         Only draw the raster layer if the gdal library is available.
+         Addresses RTbug #1877.
+         * test/test_classgen.py: Add tests for generate_singletons,
+         generate_uniform_distribution, generate_quantiles. Fixes RTbug #1903.
+         (test_calculate_quantiles): Fix some tests to catch the new
+         ValueError that is raised.
+         * test/test_proj.py: Use renamed projection resource functions.
+         * test/test_save.py (SaveSessionTest.testClassifiedLayer): New
+         test for saving classified layers. Fixes RTbug #1902.
+         (XMLWriterTest): New. Tests the XMLWriter class. Fixes RTbug #1851.
+-06-12  Jan-Oliver Wagner <[email protected]>
+         Fix for http://intevation.de/rt/webrt?serial_num=1900.
+         * Thuban/UI/multiplechoicedialog.py: New. A multiple choice dialog.
+         * Thuban/UI/mainwindow.py: import wxMultipleChoiceDialog from
+         multiplechoicedialog.py rather than from the wxPython library.
+-06-11  Frank Koormann  <[email protected]>
+         * Thuban/Lib/fileutil.py (get_application_dir): Minor stability
+         update.
+-06-11  Frank Koormann  <[email protected]>
+         * Thuban/Lib/fileutil.py (get_application_dir): New function to
+         determine the absolute .thuban/thuban directory under
+         "posix" (os.expanduser) and "nt" (read AppData registry key).
+         * Thuban/Model/resource.py: Use get_application_dir
+         * Thuban/UI/application.py (ThubanApplication.read_startup_files):
+         Use get_application_dir.
+-06-10  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/tableview.py (LayerTableFrame.__init__): Subscribe to
+         the messages MAP_LAYERS_REMOVED messages
+         (LayerTableFrame.OnClose): Unsubscribe from it.
+         (LayerTableFrame.map_layers_removed): New. Receiver for
+         MAP_LAYERS_REMOVED. Close the dialog when the layer whose the
+         dialog is showing is removed.
+-06-10  Bernhard Herzog  <[email protected]>
+         * Thuban/Lib/connector.py (Connector.Issue): Iterate over a copy
+         of the receivers list so that unsubscribing in a receiver doesn't
+         modify it while iterating over it.
+         * test/test_connector.py
+         (ConnectorTest.test_disconnect_in_receiver): New. Test whether
+         unsubscribing in a receiver works correctly. See docstring for
+         details
+-06-10  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/messages.py (LAYER_SHAPESTORE_REPLACED): New
+         message.
+         * Thuban/Model/layer.py (Layer.SetShapeStore): Send
+         LAYER_SHAPESTORE_REPLACED when the shapestore changes. A
+         LAYER_CHANGED will still be sent if the classification changes.
+         * Thuban/UI/classifier.py (Classifier.__init__): Add the map as
+         parameter so we can subscribe to some of its messages
+         (Classifier.__init__): Subscribe to the map's MAP_LAYERS_REMOVED
+         and the layer's LAYER_SHAPESTORE_REPLACED
+         (Classifier.unsubscribe_messages): New. Unsubscribe from message
+         subscribed to in __init__
+         (Classifier.map_layers_removed)
+         (Classifier.layer_shapestore_replaced): receivers for the messages
+         subscribed to in __init__. Unsubscribe and close the dialog
+         * Thuban/UI/mainwindow.py (MainWindow.OpenLayerProperties): Pass
+         the map to the Classifier dialog
+         * test/test_layer.py (SetShapeStoreTests): Derive from
+         SubscriberMixin as well so we can test messages
+         (SetShapeStoreTests.setUp): Subscribe to some of the layer's
+         messages
+         (SetShapeStoreTests.tearDown): Clear the messages again
+         (SetShapeStoreTests.test_sanity): Expand the doc-string and check
+         for the modified flag too
+         (SetShapeStoreTests.test_set_shape_store_modified_flag): New test
+         to check whether SetShapeStore sets the modified flag
+         (SetShapeStoreTests.test_set_shape_store_different_field_name)
+         (SetShapeStoreTests.test_set_shape_store_same_field)
+         (SetShapeStoreTests.test_set_shape_store_same_field_different_type):
+         Add tests for the messages. This checks both the new
+         LAYER_SHAPESTORE_REPLACED and the older LAYER_CHANGED
+-06-06  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/mainwindow.py: Improved and partly added help texts for
+         the menu items.
+-06-05  Frank Koormann  <[email protected]>
+         * Thuban/UI/identifyview.py (IdentifyView.__init__):
+         Layout reimplemented without panel. Make life easier to fit the list
+         in the dialog.
+-06-05  Frank Koormann  <[email protected]>
+         * Thuban/UI/projdialog.py (ProjFrame.__init__): Fill the projchoice
+         once on initialisation (Former implementation resulted in multiple
+         entries for each projection).
+         (ProjFrame.__FillAvailList): selectProj as second optional parameter,
+         if set, select the projection found under the specified name. This
+         overwrites any other selection estimate.
+         Removed projchoice filling from this method.
+         (ProjFrame._OnSave, ProjFrame._OnAddToList):
+         Updated call of ProjFrame.__FillAvailList
+         (LCCPanel._DoLayout): Moved parameter controls in more common order.
+         * Resources/Projections/defaults.proj: Extended defaults representing
+         various common European projections.
+-06-05  Frank Koormann  <[email protected]>
+         * Thuban/UI/identifyview.py (IdentifyView.__init__):
+         Use ListCtrl instead of GridCtrl
+         * Thuban/Model/resource.py:
+         Guess location of .thuban directory from tempdir parent directory.
+         * Thuban/UI/application.py (ThubanApplication.read_startup_files):
+         Guess location of .thuban directory from tempdir parent directory.
+-06-04  Bernhard Herzog  <[email protected]>
+         Do not cache the values returned by the tree widget's
+         GetFirstChild and GetNextChild methods because it led to lots of
+         segfaults. The new way requires more brute force but is more
+         reliable.
+         * Thuban/UI/legend.py (LegendTree.__init__): Remove instance
+         variable layer2id
+         (LegendTree.find_layer): New method to do with brute force what
+         layer2id tried to accomplish
+         (LegendTree._OnMsgLayerChanged)
+         (LegendTree._OnMsgLayerTitleChanged, LegendTree.__ShowHideLayer):
+         Use find_layer instead of layer2id
+         (LegendTree.__RemoveLayer, LegendTree.__AddLayer): No need to
+         update layer2id anymore
+         (LegendTree._OnMsgMapLayersRemoved)
+         (LegendTree._OnMsgMapLayersAdded): Get by without layer2id.
+-06-03  Thomas Koester  <[email protected]>
+         * Thuban/Model/classgen.py (GenQuantiles0): New function.
+-06-02  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (layer_rename command, table_rename command):
+         New commands.
+         (main_menu): Add the new commands.
+         (MainWindow.TableRename): New. Implementation of the table_rename
+         command.
+         (MainWindow.RenameLayer): New. Implementation of the layer_rename
+         command.
+         * Thuban/Model/session.py (Session.AddTable): call self.changed to
+         set the modified flag
+         * test/test_session.py (TestSessionSimple.test_add_table): Test
+         whether the modified flag is set properly
+         * Thuban/Model/base.py (TitledObject.SetTitle): Call changed
+         instead of issue so that the modified flags get updated.
+         * test/test_base.py (SomeTitledObject): Derive from Modifiable
+         instead of Publisher to reflect reality better and to accomodate
+         the fact that SetTitle now calls changed instead of issue
+-06-02  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/classgen.py (GenQuantilesPanel.GetList): Resource
+         acquisition has to happen before the try in a try-finally.
+-06-02  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/legend.py (LegendTree._OnMsgMapLayersRemoved): It's
+         possible that a layer is removed that is not currently selected in
+         the legend so don't check for this.
+-05-30  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.Destroy): Set all instance
+         variables to None that have direct or indirect references to
+         shapefiles or dbf files to make sure that they do go away and the
+         files are closed.
+-05-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/legend.py (LegendTree.GetRootItem): Reset
+         availImgListIndices when a new image list is created
+-05-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/legend.py (LegendTree.__init__): New instance variable
+         changing_selection to indicate whether the LegendTree code itself
+         is currently changing the selection
+         (LegendTree.normalize_selection): New method to normalize the
+         selection by selecting the layer item even if the user clicked on
+         the classification.
+         (LegendTree._OnSelChanged): normalize the selection. This works
+         around a bug in wx which doesn't keep track of the selection
+         properly when subtrees are deleted.
+-05-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/view.py (MapCanvas.set_view_transform): Limit the
+         maximum and minimum scale factors.
+         * test/test_classgen.py (ClassGenTest.test): Update to reflect the
+         changes in classgen.py
+-05-30  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py: Remove ClassGenerator class but make
+         all the methods functions. Fixes RTBug #1903.
+         * Thuban/Model/map.py (Map.TopLayer, Map.BottomLayer): Renamed
+         to MoveLayerToTop and MoveLayerToBottom respectively. Fixes
+         RTBug #1907.
+         * Thuban/UI/classgen.py: Use classgen functions that were part
+         of the ClassGenerator class. Put try/finally blocks around
+         code that uses wxBeginBusyCursor()/wxEndBusyCursor(). Fixes
+         RTBug #1904.
+         * Thuban/UI/classifier.py: Remove unused import of ClassGenerator.
+         * Thuban/UI/legend.py: The legend was cleared and repopulated any
+         time something changed which caused some state to be lost such
+         as which children were expanded or collapsed. Fixes RTBug #1901.
+         (LegendTree._OnMsgMapLayersAdded): Add only new layers.
+         (LegendTree.__OnMsgMapLayersRemoved): Remove layers that exist in
+         the legend but not in the map.
+         (LegendTree.__FillTree): Move main functionality out into smaller
+         methods that can be used by other methods.
+         (LegendTree.__FillTreeLayer): Reuse old slots in the image list
+         if they are available.
+         (LegendTree.DeleteAllItems): Renamed from __DeleteAllItems so
+         that we override the wxTreeCtrl method. Iterate over children
+         and call __RemoveLayer.
+         (LegendTree.__AddLayer): New. Add a new layer to the legend.
+         (LegendTree.__RemoveLayer): Remove a layer from the legend.
+         (LegendTree.DeleteChildren): New, overrides wxTreeCtrl method.
+         Should only be called with the id of a layer branch.
+         (LegendTree.GetRootItem): New, overrides wxTreeCtrl method.
+         Returns the root item or creates one if necessary.
+         * Thuban/UI/renderer.py (MapRenderer.draw_raster_layer): Call
+         ProjectRasterFile with tuple arguments instead of strings.
+         * Thuban/UI/tableview.py (QueryTableFrame.OnQuery): Wrap code
+         with try/finally. Fixes RTBug #1904.
+         * Thuban/UI/view.py (MapCanvas.OnPaint): Wrap code
+         with try/finally. Fixes RTBug #1904.
+         (MapCanvas.FitSelectedToWindow): If a single point is selected
+         simply center it on the display. Fixes RTBug #1849.
+         * extensions/thuban/gdalwarp.cpp: Removed code that allowed gdalwarp
+         to be compiled as a standalone app. Now the code can only be
+         called from Python which simplifies the parameter passing.
+         (ProjectRasterFile): Handle Python arguments. Remove code that
+         checks for a destination dataset. Add more clean up code.
+         * test/test_map.py (TestMapWithContents.test_raise_layer_top,
+         TestMapWithContents.test_lower_layer_bottom):
+         Test Map.MoveLayerToTop() and Map.MoveLayerToBottom() respectively.
+         Fixes RTBug #1907.
+         * Thuban/UI/mainwindow.py (MainWindow.ToggleLegend): Apply a full
+         extent to the map when the legend is toggled. Fixes RTBug #1881.
+-05-29  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/tableview.py (LayerTableFrame.OnClose): Bug-fix: Now
+         unsubscribes all that is subcribed in __init__.
+-05-28  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.DuplicateLayer)
+         (MainWindow.CanDuplicateLayer): New methods to implement the
+         Layer/Duplicate command.
+         (layer_duplicate command): New.
+         (main_menu): Add layer_duplicate to the Layer menu.
+-05-28  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/tableview.py (NullRenderer.Draw): New. Our own
+         renderer so that NULL/None values get displayed differently (by a
+         gray rectangle).
+         (TableGrid.__init__): Override the default renderers
+-05-28  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/layer.py (Layer.SetShapeStore): Set the
+         classification to "None" if the type of the field has changed.
+         * test/test_layer.py (SetShapeStoreTests): New. Class with a few
+         test for the Layer.SetShapeStore method
+-05-28  Jan-Oliver Wagner <[email protected]>
+         * Thuban/Model/layer.py (Layer.TreeInfo): Fixed a bug (a layer
+         does not necessarily have a filename).
+-05-28  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.TableClose, MainWindow.TableShow):
+         sort the selection list for the dialog.
+-05-28  Frank Koormann  <[email protected]>
+         * extensions/thuban/wxproj.cpp
+         (project_point): Removed cast to int for projected point coordinates.
+         (shape_centroid): Return last point if all polygon vertices fall
+         to one point.
+-05-28  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (_can_unjoin): Add doc-string and cope
+         with layers that don't have shapestores, i.e. raster layers.
+-05-28  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/table.py (DBFTable.__init__): Omit the extension
+         when determining the title from the filename.
+         * test/test_dbf_table.py (TestDBFTable.test_title): Update to
+         reflect changes in the way the title is derived from the filename
+-05-28  Frank Koormann  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.TableShow):
+         Added wxDEFAULT_DIALOG_STYLE to show table dialog styles.
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.delegated_messages): Also
+         delegate SelectedLayer.
+         (MainWindow.LayerUnjoinTable): Implement.
+         (_can_unjoin): New. Helper function for the sensitivity of the
+         layer/unjoin command.
+         * Thuban/Model/data.py (ShapefileStore.OrigShapeStore)
+         (DerivedShapeStore.OrigShapeStore): New. Return the original
+         shapestore. Used to figure out how to unjoin.
+         (DerivedShapeStore.Shapefile): Fix a typo.
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog): Extend to handle layer joins as
+         well
+         (JoinDialog.__init__): Use the layer parameter and only build the
+         left choice when a layer is given
+         (JoinDialog.OnJoin): Handle layer joins as well
+         (JoinDialog.OnLeftTable, JoinDialog.OnRightTable): Handle the case
+         that the user selects the "Select..." item. The sensitivitly
+         updating is now in update_sensitivity
+         (JoinDialog.y): New method to refactor the sensitivity update of
+         the join button into its own method.
+         * Thuban/UI/mainwindow.py (MainWindow.LayerJoinTable): Implement.
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (table_close command): Make it sensitive
+         iff there are unreferenced tables in the session
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/messages.py (TABLE_REMOVED): New message.
+         * Thuban/Model/session.py (Session.UnreferencedTables): New method
+         to return tables that are not referenced by other tables or shape
+         stores and can be removed.
+         (Session.RemoveTable): Issue a TABLE_REMOVED message after
+         removing the table
+         * Thuban/UI/mainwindow.py: Remove unused imports
+         (MainWindow.TableClose): Implement.
+         * Thuban/UI/tableview.py (TableFrame.__init__): Subscribe to some
+         messages so that the frame will be automatically closed when a new
+         session is opened or the table is removed.
+         (TableFrame.OnClose): Unsubscribe the Subscriptions made in
+         __init__
+         (TableFrame.close_on_session_replaced)
+         (TableFrame.close_on_table_removed): New. Subscribers that close
+         the window
+         * test/test_session.py (TestSessionMessages.test_remove_table)
+         (TestSessionSimple.test_remove_table): Move the test to
+         TestSessionSimple and add test for the TABLE_REMOVED message
+         (TestSessionBase.setUp): Also subscribe to TABLE_REMOVED
+         (TestSessionSimple.test_unreferenced_tables) New. Test for the
+         UnreferencedTables method.
+         (UnreferencedTablesTests): New. Class with some more sophisticated
+         tests for UnreferencedTables.
+-05-27  Frank Koormann  <[email protected]>
+         * Thuban/UI/tableview.py (QueryTableFrame.__init__): The "_S_election"
+         display has some unwanted side effects. Removed again.
+-05-27  Frank Koormann  <[email protected]>
+         * Resources/Bitmaps/legend_icon_layer.xpm: New, icon for legend.
+         * Thuban/UI/legend.py (LegendTree.__FillTree): Use "legend_icon_layer"
+-05-27  Jan-Oliver Wagner <[email protected]>
+         * test/test_menu.py (MenuTest.test): Added test for
+         Menu.RemoveItem().
+         * Thuban/UI/menu.py (Menu.RemoveItem): New. Remove an item from
+         the menu.
+-05-27  Frank Koormann  <[email protected]>
+         Nonmodal dialogs without parent (i.e. they can fall behind the main
+         window)
+         * Thuban/UI/mainwindow.py (MainWindow.OnClose): Explicitly destroy
+         all dialogs in the dialogs dictionary and the canvas.
+         * Thuban/UI/dialogs.py (NonModalNonParentDialog): New class, without
+         parent, i.e. can fall behind other windows.
+         (NonModalDialog.OnClose): Check is dialog is in mainwindow.dialog
+         dictionary before removing it.
+         * Thuban/UI/classifier.py: Dialog derived from NonModalNonParentDialog
+         * Thuban/UI/projdialog.py: Dialog derived from NonModalNonParentDialog
+         * Thuban/UI/tableview.py: Dialog derived from NonModalNonParentDialog
+         * Thuban/UI/tree.py: Dialog derived from NonModalNonParentDialog
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.ShowTableView): New. Open a
+         tableview dialog
+         (MainWindow.TableShow): Use ShowTableView to open the dialogs.
+         Also, don't use the table's titles as the dialog names. The titles
+         aren't guaranteed to be unique.
+         (MainWindow.TableOpen): Open a table view dialog after opening the
+         table
+-05-27  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py: Remove the Table/Hide menu item. Its
+         effect can be achieved by simply closing the window showing the
+         table.
+         (MainWindow.TableHide): Removed.
+         (main_menu): Removed "table_hide"
+-05-27  Frank Koormann  <[email protected]>
+         Fix legend tree display problems under Win32
+         * Thuban/UI/legend.py:  BMP_SIZE_W = 15
+         (LegendTree.__FillTree): Display "legend_icon_map.xpm" with layer title.
+         (LegendTree.__FillTreeLayer): Explicitely set SelectedImage.
+         * Resources/Bitmaps/legend_icon_map.xpm: New icon for legend.
+-05-27  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/menu.py (Menu.InsertSeparator): Additional optional parameter
+         'after' now allows to insert separators almost anywhere in the menu.
+-05-27  Frank Koormann  <[email protected]>
+         * Thuban/UI/tableview.py (QueryTableFrame.__init__): Underline the
+         "S" of selection box label to hint on hot key (Alt-S). Works under
+         Win32 but is ignored under GTK.
+-05-26  Frank Koormann  <[email protected]>
+         * Thuban/UI/projdialog.py (ProjFrame.__do_layout, ProjPanel._DoLayout):
+         Center Choices.
+-05-26  Bernhard Herzog  <[email protected]>
+         Remove the Precision methods again. They're too DBF specific to be
+         part of the table interface and they're only used in table_to_dbf
+         anyway.
+         * Thuban/Model/transientdb.py (TransientTableBase.Width):Use a
+         fixed precision of 12 for doubles.
+         (TransientTableBase.Precision): Removed
+         (AutoTransientTable.Width): Delegate to self.table.
+         * Thuban/Model/table.py (DBFTable.Precision)
+         (MemoryTable.Precision): Removed.
+         (MemoryTable.Width): Use a fixed precision of 12 for doubles.
+         (table_to_dbf): Use a fixed precision of 12 for floats unless the
+         column object specifies something else.
+         * test/test_dbf_table.py (TestTableToDBF.test_table_to_dbf): New.
+         test for table_to_dbf
+-05-26  Bernhard Herzog  <[email protected]>
+         * test/test_transientdb.py
+         (TestTransientTable.run_iceland_political_tests): Fix a comment.
+-05-26  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.TableOpen): Real
+         implementation. Mark parts of the file format strings for
+         localization.
+         * Thuban/Model/session.py (Session.OpenTableFile): New. Open a dbf
+         file and add the table to the tables managed by the session
+         * test/test_session.py (TestSessionSimple.test_open_table_file):
+         New. test case for OpenTableFile
+-05-26  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/controls.py, Thuban/UI/identifyview.py, Thuban/UI/join.py,
+         Thuban/UI/labeldialog.py, Thuban/UI/mainwindow.py,
+         Thuban/UI/proj4dialog.py, Thuban/UI/tableview.py, Thuban/UI/view.py:
+         Replace the true/false of wxWindows by True/False of Python 2.2.1.
+-05-26  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/tableview.py (LayerTableFrame.__init__): If there is
+         already a selection present, update the grid accordingly.
+         * Thuban/UI/mainwindow.py (MainWindow.TableShow): Make the dialog
+         resizeable and increase its initial size.
+-05-26  Frank Koormann  <[email protected]>
+         Table export functionality
+         * Thuban/Model/table.py (DBFTable.Width, MemoryTable.Width):
+         Return width (in characters) for a column.
+         (DBFTable.Precision, MemoryTable.Precision): Return decimal precision.
+         (table_to_dbf): Write table to dbf file.
+         (table_to_csv): Write table to csv file.
+         * Thuban/Model/transientdb.py (TransientTableBase.Width,
+         TransientTableBase.Precision): Return column width and precision.
+         * Thuban/UI/tableview.py (QueryTableFrame.OnSaveAs): Call table_to_dbf
+         or table_to_csv depending on file selection.
+         * test/test_dbf_table.py:
+         Test table_to_dbf (extension of former part of test).
+         * test/test_csv_table.py:
+         Test table_to_csv.
+-05-23  Jan-Oliver Wagner <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.OnJoin): Use _() for strings.
+         Use QueryTableFrame instead of TableFrame.
+         * Thuban/UI/mainwindow.py (MainWindow.LayerShowTable): Prefix the
+         table window with 'Layer Table:' instead of 'Table:'.
+-05-23  Jan-Oliver Wagner <[email protected]>
+         Give all tables a title via mix-in TitledObject.LayerShowTable
+         * Thuban/Model/base.py (TitledObject.SetTitle): Call method 'issue'
+         only if it exists.
+         * Thuban/Model/table.py (DBFTable, MemoryTable): mix-in TitledObject
+         and call its init-method with a default title. Remove Title() method.
+         * Thuban/Model/transientdb.py (TransientTable, TransientJoinedTable,
+         AutoTransientTable): mix-in TitledObject and call its init-method with
+         a default title. Remove Title() method.
+-05-23  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py (Session.AddShapeStore): Define
+         AddShapeStore analogously to AddTable.
+         * test/test_session.py (TestSessionSimple.test_add_shapestore):
+         New. Test for AddShapeStore
+-05-23  Jan-Oliver Wagner <[email protected]>
+         Introducing QueryTableFrame and a very coarse ShowTable implementation.
+         * Thuban/UI/tableview.py (LayerTableFrame, QueryTableFrame): Split the
+         class LayerTableFrame into two classes, LayerTableFrame and QueryTableFrame.
+         The latter implements the selection GUI without dependency on a layer.
+         LayerTableFrame now is derived from QueryTableFrame and connects
+         to a layer.
+         * Thuban/UI/mainwindow.py (MainWindow.TableShow): A very coarse
+         implementation that still needs work.
+         * Thuban/Model/layer.py (Layer.TreeInfo): Added filename.
+-05-22  Frank Koormann  <[email protected]>
+         * Thuban/Model/transientdb.py (TransientJoinedTable.__init__):
+         Added "outer_join = False" as optional parameter.
+         (TransientJoinedTable.create): If outer join is true, perform a
+         "LEFT OUTER JOIN" instead of "JOIN", which preserves all records of
+         the left table. Records not matching are filled with 0 / None.
+         * Thuban/UI/join.py (JoinDialog.__init__): Checkbox for outer join.
+         (JoinDialog.OnJoin): Consider outer join check box.
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.OnJoin): Use exc_info in a
+         somewhat safer way. Storing the traceback in a local variable can
+         lead to memory leaks
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.OnJoin): Make sure to really call
+         the wxMessageDialog's Destroy() method.
+-05-22  Frank Koormann  <[email protected]>
+         * Thuban/UI/join.py (JoinDialog.__init__): Make use of
+         TransientTable.Title()
+-05-22  Frank Koormann  <[email protected]>
+         Join Dialog, initial version.
+         * Thuban/UI/mainwindow.py (MainWindow.TableJoin): Removed print.
+         * Thuban/UI/join.py (JoinDialog): Functional implementation of
+         former framework. Renamed Table1/Table2 to LeftTable/RightTable
+         in all occurences.
+         * Thuban/Model/transientdb.py (TransientJoinedTable.__doc__):
+         Typo fixed.
+-05-22  Bernhard Herzog  <[email protected]>
+         Give the tables titles so that the GUI can display more meaningful
+         names. For now the titles are fixed but depend on e.g. filenames
+         or the titles of the joined tables.
+         * Thuban/Model/transientdb.py (TransientTable.Title)
+         (TransientJoinedTable.Title, AutoTransientTable.Title): New.
+         * Thuban/Model/table.py (DBFTable.Title, MemoryTable.Title): New.
+         * test/test_transientdb.py
+         (TestTransientTable.test_auto_transient_table_title): New. Test
+         for the Title method
+         (TestTransientTable.test_transient_joined_table)
+         (TestTransientTable.test_transient_table): Add test for the Title
+         methods
+         * test/test_memory_table.py (TestMemoryTable.test_title): New.
+         Test for the Title method
+         * test/test_dbf_table.py (TestDBFTable.test_title): New. Test for
+         the Title method
+-05-22  Bernhard Herzog  <[email protected]>
+         * test/test_layer.py (TestLayer.setUp, TestLayer.tearDown):
+         Provide a better way to destroy the layers
+         (TestLayer.test_base_layer, TestLayer.test_arc_layer)
+         (TestLayer.test_point_layer, TestLayer.test_empty_layer)
+         (TestLayer.test_polygon_layer, TestLayer.test_get_field_type): Use
+         the new way to destroy the layers.
+         (TestLayer.test_derived_store): New. Test for using a layer with a
+         DerivedShapeStore
+         * Thuban/Model/layer.py (Layer.SetShapeStore): Only set the
+         filename if the shape store actually has one.
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/table.py (DBFTable.FileName): New. Accessor method
+         for the filename
+         * test/test_dbf_table.py (TestDBFTable.test_filename): New. Test
+         for the FileName method
+         (TestDBFTableWriting.test_write): Fix spelling of filename
+-05-22  Thomas Koester  <[email protected]>
+         * Thuban/Model/range.py, test/test_range.py: Brought over new Range
+         from SciParam that now really is immutable.
+-05-22  Frank Koormann  <[email protected]>
+         Layer Top/Bottom placement added to legend.
+         * Thuban/UI/legend.py
+         (LegendPanel._OnMoveTop(), LayerPanel._OnMoveBottom): New, methods
+         bound to tool events.
+         (LegendTree.MoveCurrentItemTop(), LegendTree.MoveCurrentItemBottom):
+         New, methods binding the event methods with the map methods.
+         * Thuban/Model/map.py (Map.TopLayer(), Map.BottomLayer()): New, place
+         layer at top/bottom of layer stack.
+         * Resources/Bitmaps/top_layer.xpm: New button icon.
+         * Resources/Bitmaps/bottom_layer.xpm: New button icon.
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py (Session.RemoveTable): New method to
+         remove tables
+         * test/test_session.py (TestSessionSimple.test_remove_table): New.
+         Test for RemoveTable
+-05-22  Thomas Koester  <[email protected]>
+         * Thuban/Model/classgen.py: Added short module doc string and CVS id.
+         (ClassGenerator.GenUniformDistribution): Use new Range __init__, too.
+-05-22  Bernhard Herzog  <[email protected]>
+         Implement a way to discover dependencies between tables and
+         shapestores.
+         * Thuban/Model/transientdb.py (TransientTableBase.Dependencies)
+         (TransientJoinedTable.Dependencies)
+         (AutoTransientTable.SimpleQuery): New. Implement the dependencies
+         interface
+         (TransientJoinedTable.__init__): Keep tack of the original table
+         objects in addition to the corresponding transient tables.
+         * Thuban/Model/table.py (DBFTable.Dependencies)
+         (MemoryTable.Dependencies): New. Implement the dependencies
+         interface
+         * Thuban/Model/data.py (ShapeTable): New. Helper class for
+         ShapefileStore
+         (ShapefileStore.__init__): Use ShapeTable instead of
+         AutoTransientTable
+         (ShapefileStore.Table, ShapefileStore.Shapefile): Add doc-strings
+         (ShapefileStore.FileName, ShapefileStore.FileType): New. Accessor
+         methods for filename and type
+         (ShapefileStore.Dependencies): New. Implement the dependencies
+         interface
+         (DerivedShapeStore): New class to replace SimpleStore. The main
+         difference to SimpleStore is that it depends not on a shapefile
+         but another shapestore which expresses the dependencies a bit
+         better
+         (SimpleStore.__init__): Add deprecation warning.
+         * test/test_dbf_table.py (TestDBFTable.test_dependencies): New.
+         Test for the Dependencies method.
+         * test/test_memory_table.py (TestMemoryTable.test_dependencies):
+         New. Test for the Dependencies method.
+         * test/test_transientdb.py
+         (TestTransientTable.test_auto_transient_table_dependencies): New.
+         Test for the Dependencies method.
+         (TestTransientTable.test_transient_joined_table): Add test for the
+         Dependencies method.
+         * test/test_session.py (TestSessionSimple.setUp)
+         (TestSessionSimple.tearDown): New. Implement a better way to
+         destroy the sessions.
+         (TestSessionSimple.test_initial_state)
+         (TestSessionSimple.test_add_table): Bind session to self.session
+         so that it's destroyed by tearDown
+         (TestSessionSimple.test_open_shapefile): New. Test for
+         OpenShapefile and the object it returns
+-05-22  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py (Session.AddTable): New method to
+         register tables with the session.
+         (Session.Tables): Return the tables registered with AddTable too.
+         * test/test_session.py (TestSessionSimple.test_add_table): New.
+         Test case for the AddTable method
+-05-22  Frank Koormann  <[email protected]>
+         UI polishing updates: Place main buttons (OK, Cancel, etc) in the
+         lower right corner, center labels for selections, initialize controls
+         in reasonable order for keyboard navigation.
+         * Thuban/UI/projdialog.py (ProjFrame.__init__, ProjFrame.__doLayout)
+         (ProjFrame.__DoOnProjAvail): Determine position of current projection
+         using the wxListBox.FindString() method. Still a problem (#1886)
+         * Thuban/UI/classifier.py
+         (Classifier.__init__, SelectPropertiesDialog.__init__)
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__,
+         (ClassGenDialog.__DoOnGenTypeSelect): Moved initialization of the
+         different classification types from here to __init__.
+         (GenUniquePanel.__init__): Set the column width of the first field
+         in the Field ListCtrl to the full width.
+         * Thuban/UI/tableview.py (LayerTableFrame.__init__): Rename 'Save As'
+         Button to 'Export'. Center Buttons in Selection Box, set Focus to
+         Grid.
+         (LayerTableFrame.OnKeyDown()): New, bound to the grid with EVT_KEY_DOWN,
+         changes focus to the Selection when pressing "Alt-S".
+         * Thuban/UI/legend.py (LegendTree.__SetVisibilityStyle): Only gray out
+         the text if not visible. The italic font sometimes exceeds the
+         rendering area.
+-05-21  Jonathan Coles   <[email protected]>
+         * Thuban/UI/dock.py (DockFrame): Rename references to _OnClose
+         to OnClose so that Thuban closes correctly.
+         * Thuban/UI/mainwindow.py (MainWindow.OnClose): Call
+         DockFrame.OnClose, not DockFrame._OnClose.
+-05-21  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py (ClassGenerator.GenQuantiles): Remove
+         references to 'inf' and use new Range __init__ to pass floats
+         directly rather than converting them to strings first.
+         Fixes RTBug #1876.
+         * Thuban/Model/classification.py (ClassGroupRange.SetRange):
+         Use new Range ___init__ to pass floats.
+         * Thuban/Model/layer.py (RasterLayer.__init__): Test if the
+         filename is a valid image file. Throw IOError otherwise.
+         * Thuban/Model/range.py: Brought over new Range from SciParam that
+         is immutable and has an __init__ which can accept floats.
+         * Thuban/UI/mainwindow.py (MainWindow.AddLayer): Move OpenShapefile
+         into try block. AddLayer doesn't throw any exceptions anymore.
+         (MainWindow.AddRasterLayer): Move constructor of RasterLayer into
+         try block.
+         * Thuban/UI/projdialog.py (GeoPanel.__init__): Put Degrees as
+         the first item in choices. Fixes RTBug #1882.
+         * Thuban/UI/renderer.py (MapRenderer.render_map): Check if scale
+         has gone to 0 which is a serious problem. abort.
+         (MapRenderer.draw_raster_layer): Catch IOError seperately and
+         print the error from GDAL.
+         * Thuban/UI/tableview.py (TableGrid.__init__): Call
+         ToggleEventListeners to turn on listening.
+         (TableGrid.ToggleEventListeners): New. Turns event listening on
+         and off so as to prevent excessive messages.
+         (LayerTableFrame.OnQuery): Use TableGrid.ToggleEventListeners
+         to suppress excessive messages when selecting many rows.
+         Fixes RTBug #1880.
+         * Thuban/UI/view.py: Added checks against if scale == 0. This
+         is a serious problem that can occur when an image without
+         geo data is loading and causes the map projection bounds to
+         go to infinity. Right now, the solution is to simply try
+         to recover.
+         * extensions/thuban/cpl_mfile.cpp (MFILEClose): Make sure
+         to set the MFILEReceiver attributes even if the data is NULL.
+         * extensions/thuban/gdalwarp.cpp: Improved the error handling
+         and passed GDAL messages back up to the Python layer. Also
+         tried to fix some memory leaks that were present in the original
+         utility but didn't matter because the program aborted.
+         * test/test_range.py: Copied over tests from SciParam. Removed
+         tests against importing. Fixes RTBug #1867.
+-05-21  Bernhard Herzog  <[email protected]>
+         * test/test_load.py: Remove unused imports and restructure the
+         test code
+         (LoadSessionTest): Split into one class for each test and turn
+         LoadSessionTest itself into the base class for all such session
+         tests.
+         (ClassificationTest): New base class for load tests that test
+         classifications
+         (TestSingleLayer, TestLayerVisibility, TestClassification)
+         (TestLabels, TestLayerProjection, TestRasterLayer): New classes
+         for the individual tests
+         * test/support.py (FileLoadTestCase.filename): New base class for
+         file loading tests
+-05-21  Jan-Oliver Wagner <[email protected]>
+         * Resources/Projections/defaults.proj: Renamed 'Universal Transverse
+         Mercator' to 'UTM Zone 32' as a more convenient example.
+         Added 'Gauss Krueger Zone 6'.
+         * Data/iceland_sample_raster.thuban: political polygon now
+         filled transparent to have the raster image visible at once.
+-05-21  Frank Koormann  <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow): Renamed _OnClose() back to
+         OnClose() to keep in sync with extensions. Internally Thuban
+         still uses "underscored" names.
+-05-20  Jonathan Coles   <[email protected]>
+         This puts back Raster layer support. These layers support projections
+         through the GDAL library. Currently, the CVS version is being used.
+         There are no Debian packages available although this may change soon.
+         A GDAL driver was extended to support writing to memory rather to
+         files.
+         There is still some work that needs to be done, such as some error
+         handling when loading invalid images or when there is a problem
+         projecting the image. This putback simply checks in the majority
+         of the work.
+         * setup.py: Add gdalwarp library extension.
+         * Thuban/Model/layer.py (BaseLayer.HasClassification): New.
+         Defaults to False, but can be overridden by subclasses if they
+         support classification.
+         (RasterLayer): New. Defines a new layer that represents an
+         image.
+         * Thuban/Model/load.py (SessionLoader.__init__): Add rasterlayer
+         tag handler.
+         (SessionLoader.start_layer): Encode the filename.
+         (SessionLoader.start_rasterlayer, SessionLoader.end_rasterlayer):
+         New. Supports reading a rasterlayer tag.
+         * Thuban/Model/map.py (Map.BoundingBox): Fix typo in comment.
+         * Thuban/Model/save.py (XMLWriter.encode): Don't assume that we
+         get a string in Latin1. If we get such as string convert it to
+         unicode first, otherwise leave if alone before encoding.
+         (SessionSaver.write_layer): Add support for writing both Layers
+         and RasterLayers.
+         * Thuban/Model/transientdb.py (AutoTransientTable.SimpleQuery):
+         The right argument may not be a string, it could also be a Column.
+         * Thuban/UI/application.py (ThubanApplication.CreateMainWindow):
+         Make initial window size 600x400. Fixes RTBug #1872.
+         * Thuban/UI/classifier.py (Classifier.__init__): Rearrange how
+         the dialog is constructed so that we can support layers that
+         do not have classifications.
+         (Classifier._OnTry): Only build a classification if the layer
+         supports one.
+         * Thuban/UI/legend.py: Change all checks that a layer is an
+         instance of Layer into checks against BaseLayer.
+         (LegendTree.__FillTreeLayer): Only add children to a branch if
+         the layer supports classification.
+         * Thuban/UI/mainwindow.py (MainWindow.NewSession,
+         MainWindow.OpenSession): Don't proceed with an action if the
+         user chooses Cancel when they are asked to save changes.
+         (MainWindow.AddRasterLayer): New. Open a dialog to allow the
+         user to select an image file. Create a new RasterLayer and add
+         it to the map.
+         * Thuban/UI/renderer.py (MapRenderer.render_map): Add support
+         for rendering RasterLayer layers.
+         (MapRenderer.draw_raster_layer): Actually method that calls
+         the GDALWarp python wrapper and constructs an image from the
+         data returned.
+         * Thuban/UI/tableview.py (LayerTableFrame.__init__): Change the
+         Choices symbols to match those used in the table query method.
+         Replace deprecated method calls on table with new method names.
+         * Thuban/UI/view.py (MapCanvas.set_view_transform): Try to limit
+         how small the scale can get. This still needs more testing.
+         * extensions/thuban/bmpdataset.cpp: New, but copied from GDAL.
+         Provides a driver to output in .bmp format.
+         * extensions/thuban/cpl_mfile.cpp, extensions/thuban/cpl_mfile.h:
+         New. Provides IO routines which write to memory, rather than a file.
+         * extensions/thuban/gdalwarp.cpp: New, but basically a direct copy
+         of the gdalwarp utility provided in GDAL. Added function calls
+         that can be accessed from python.
+         * Data/iceland_sample_raster.thuban: New. Sample file that uses
+         a raster layer.
+         * Data/iceland/island.tfw, Data/iceland/island.tif: New. Raster
+         layer image data.
+         * Doc/thuban.dtd: Added rasterlayer attribute definition.
+         * test/test_layer.py, test/test_load.py, test/test_save.py: Added
+         tests associated with the raster layer code.
+         * test/test_transientdb.py
+         (TestTransientTable.test_auto_transient_table_query): Added a test
+         for using a Column object as the "right" parameter to a query.
+-05-19  Frank Koormann  <[email protected]>
+         * Thuban/version.py (get_changelog_date):
+         Catch exceptions if ChangeLog does not exist.
+         * Thuban/UI/view.py (MapCanvas.Export): Bugfix
+-05-19  Frank Koormann  <[email protected]>
+         Extended version information for Thuban
+         * Thuban/version.py: New, version information for Thuban: Last
+         modification date and last ChangeLog entry date.
+         * Thuban/UI/mainwindow.py (MainWindow.About()): Extended version
+         information: Display Thuban, wxPython and Python version.
+-05-16  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/save.py: Remove some unused imports including the
+         __future__ import for nested_scopes as Thuban relies on Python 2.2
+         now.
+         (XMLWriter.encode): Remove the special case for a None argument.
+         In the saver encode is always called with a string argument.
+-05-16  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/__init__.py: Remove the work-around for the locale bug
+         in wxPython (at least when usinvg wxGTK) prior to 2.4. The symptom
+         of the bug was that e.g. float("1.2") would fail. Thuban now
+         requires 2.4.x.
+-05-16  Frank Koormann   <[email protected]>
+         Printing enhancement and WMF export (under Win32)
+         * Thuban/UI/renderer.py (ExportRenderer): New, derived from
+         ScreenRenderer. Renders Map, Legend and Scalebar for export.
+         (PrinterRenderer): New, derived from ExportRenderer. Replaces the old
+         PrintRender.
+         * Thuban/UI/view.py (MapPrintout.__init__): Enhanced parameter set
+         to fullfil information needed for PrinterRenderer.
+         (MapCanvas.Export): New. Export Map (currently only to WMF on Win32).
+         (MapCanvas.Print): Adapted to new MapPrintout.
+         (OutputTransform): General calculations to transform from canvas
+         coordinates to export/printing devices.
+         * Thuban/UI/mainwindow.py (MainWindow.ExportMap()): New. Added also
+         new method_command to call ExportMap, with platform dependency (only
+         __WXMSW__)
+         * Thuban/UI/scalebar.py (ScaleBar.DrawScaleBar): Position and Size
+         of scalebar drawing area as new parameters.
+         * Thuban/Model/scalebar.py (roundInterval): round long instead of int
+         * Thuban/UI/legend.py (ScalebarBitmap.__SetScale):
+         Update to extended scalebar.DrawScalebar header.
+         * test/test_export.py: New, test Thuban.UI.view.OutputTransform()
+         * test/test_scalebar.py: Made test executable as standalone.
+-05-16  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/table.py (Table): Remove this compatibility alias
+         for DBFTable.
+         * test/test_table.py: Import DBFTable as Table because that alias
+         doesn't exist anymore.
+         * Thuban/UI/classgen.py: Remove some unused imports
+-05-14  Jonathan Coles   <[email protected]>
+         * Thuban/Model/classgen.py (ClassGenerator.GenSingletonsFromList):
+         Fix docstring.
+         (ClassGenerator.GenUniformDistribution): Fix spelling of method name.
+         (ClassGenerator.GenQuantiles): Use the left/right brackets and min/max
+         values of the supplied range to determine the beginning and end
+         bounds of the generated classes.
+         * Thuban/Model/range.py (Range.number_re): Now accepts floats that
+         do not have a leading 0 (.5 is now accepted as well as 0.5).
+         * Thuban/UI/classgen.py (ClassGenDialog.OnOK): Fix name of method
+         call to ClassGenerator.GenUniformDistribution.
+         * Thuban/UI/projdialog.py (ProjFrame.__do_layout): Fix Windows
+         layout bug with the 'Projection' label.
+         * test/support.py (FloatTestCase): New. Needed for the Range tests.
+         * test/test_range.py: New. Imported from SciParam.
+-05-12  Jonathan Coles   <[email protected]>
+         * Thuban/UI/classgen.py (GenQuantilesPanel.GetList): Replace call
+         to table.UniqueValues() with calls that retrieve all the values
+         from the table. This will need to be replaced by a method on table
+         which can simply return the list (perhaps more efficiently).
+-05-12  Jonathan Coles   <[email protected]>
+         The return value of ClassGenerator.CalculateQuantiles has changed.
+         Refer to the documentation for details.
+         * test/test_classgen.py: Modified Quantile tests to use the
+         new return values.
+         * Thuban/Model/classgen.py
+         (ClassGenerator.GenQuantiles): Add comments describing the parameters,
+         use new return values from CalculateQuantiles to produce the correct
+         range bounds in the Classification.
+         (ClassGenerator.CalculateQuantiles): Add more comments describing
+         the return values and parameters. Make minor adjustments to improve
+         the legibility of the code. Fix problem with adjusted not being set
+         in most cases.
+-05-12  Frank Koormann <[email protected]>
+         * Thuban/Model/save.py (XMLWriter.encode()): Explicite call to unicode
+         and latin1. Fixes #1851 finally.
+-05-09  Jonathan Coles   <[email protected]>
+         * test/test_classgen.py: New. Tests the Quantile algorithm.
+         * Thuban/Model/classgen.py (ClassGenerator.CalculateQuantiles):
+         Clean up debugging statement, add comments, fix a small bug in the
+         returned adjusted percentiles.
+-05-09  Jonathan Coles   <[email protected]>
+         Introduces Range class from SciParam into the ClassGroupRange class,
+         and such ranges can now be saved and loaded from disk.
+         Quantiles are now available in the Classification Generator.
+         Initial support for building Queries on a table. Doesn't do anything
+         but run some tests.
+         * Thuban/Model/classification.py: Explicit imports.
+         (ClassGroupRange): Use the Range class to store the underlying
+         range information. The interface remains the same, except for
+         GetRange(), and you can also supply a Range object as the min
+         parameter to SetRange or __init__.
+         * Thuban/Model/load.py (XMLReader.encode): New. Encodes the given
+         string appropriately for use in Thuban. Fixes RTbug #1851.
+         (SessionLoader.end_projection): Handle the context of the
+         projection tag a bit better by looking at what objects are not
+         None. There was an assumption that a projection tag for a map
+         could occur before any layers.
+         (SessionLoader.start_clrange): Provide backward compatibility for
+         reading min/max values as well as the new range parameter.
+         * Thuban/Model/map.py: Explicit imports.
+         * Thuban/Model/resource.py: Import _.
+         (ProjFileSaver.write): write header using projfile.dtd.
+         * Thuban/Model/save.py: Explicit imports.
+         (XMLWriter.encode): New. Encode the given string from a format
+         used by Thuban into UTF-8. Fixes RTbug #1851.
+         * Thuban/UI/classgen.py: Explicit imports.
+         (ClassGenDialog.__init__): Clean up the code and add support
+         for Quantiles.
+         (ClassGenDialog.OnOK): Add support for Quantiles.
+         (GenQuantilesPanel): New. Input panel for Quantiles.
+         (ClassGenerator, CustomRamp, MonochromaticRamp, GreyRamp, RedRamp,
+         GreenRamp, BlueRamp, HotToColdRamp): Move to Thuban/Model/classgen.py
+         * Thuban/Model/classgen.py: New. Contains all the classes named above.
+         * Thuban/UI/classifier.py: Explicit imports.
+         (ClassTable.GetValueAsCust, ClassTable.__ParseInput,
+         ClassTable.SetValueAsCustom): Reworked to use new Range class.
+         * Thuban/UI/legend.py: Explicit imports.
+         * Thuban/UI/mainwindow.py: Add support for the Join Dialog. Added
+         a Table menu and associated method calls.
+         (MainWindow.choose_color): Removed. No longer needed.
+         * Thuban/UI/projdialog.py (ProjFrame.__VerifyButtons): Save button
+         should be disabled if no projection is selected in the available
+         list.
+         * Thuban/UI/renderer.py: Explicit imports.
+         * Thuban/UI/tableview.py (TableGrid.OnRangeSelect): Fix some issues
+         with correctly selecting the rows and issuing the right events.
+         Be sure to call Skip() to allow the grid to do some of its own
+         handling which allows the rows to actually be selected.
+         (LayerTableGrid.select_shapes): Rename from select_shape. Supports
+         selecting multiple shapes.
+         (LayerTableFrame): Support for building Queries.
+         (LayerTableFrame.select_shapes): Allow multiple shapes to be selected.
+         * Thuban/UI/tree.py: Explicit imports.
+         * Thuban/UI/view.py (MapCanvas): Delegate "SelectedShapes" so the
+         table view can call it.
+         * test/test_classification.py: Explicit imports.
+         (TestClassification.test_ClassGroupRange): Fix test for new
+         Range class.
+         * Doc/thuban.dtd: Add range parameter for clrange.
+         * Thuban/Model/range.py: Taken from SciParam. Used as the underlying
+         object in ClassGroupRange, and also uesd for inputting ranges in
+         the classifer table and elsewhere.
+         * Thuban/UI/join.py: New. Initial Join dialog. No real functionality
+         yet.
+-05-09  Frank Koormann <[email protected]>
+         * Thuban/UI/scalebar.py (DrawScaleBar): Draw only if interval > 0.0.
+-05-08  Frank Koormann <[email protected]>
+         Coding style updates
+         * test/test_scalebar.py: Replaced tab indentation by spaces.
+         * Thuban/UI/scalebar.py: Explicit imports.
+-05-08  Frank Koormann <[email protected]>
+         * Thuban/UI/scalebar.py
+         (ScaleBar.DrawScalebar): Format string bug fixed.
+-05-08  Frank Koormann <[email protected]>
+         Reorganization of scalebar component (no wx in Thuban/Model)
+         * Thuban/Model/scalebar.py: Rendering moved to Thuban/UI/scalebar.py
+         (deriveInterval):
+         Calculate scalebar interval and unit which fits in width for scale.
+         (roundInterval): Round float.
+         * Thuban/UI/scalebar.py (ScaleBar): Scalebar rendering
+         * test/test_scalebar.py: Test for Thuban/Model/scalebar.py methods.
+         * Thuban/UI/legend.py: Import Thuban.UI.scalebar
+-05-08  Frank Koormann <[email protected]>
+         * Thuban/UI/legend.py (ScalebarBitmap.SetCanvas):
+         Initialize ScaleBar with canvas.map
+         * Thuban/Model/scalebar.py (ScaleBar.roundInterval()): New,
+         round intervals to display smarter lengths
+         (ScaleBar.DrawScalebar): Draw Scalebar only if the map contains a
+         layer. If the maps has no projection applied grey the scalebar.
+-05-07  Frank Koormann <[email protected]>
+         Basic Scalebar features added.
+         * Thuban/Model/scalebar.py (ScaleBar): New, scalebar rendering.
+         * Thuban/UI/legend.py (LegendPanel): Added scalebar bitmap
+         (ScaleBarBitmap): New, links the scalebar bitmap with view messages
+         and the renderer.
+         * Thuban/UI/view.py (MapCanvas.set_view_transform): Issue SCALE_CHANGED.
+         * Thuban/UI/messages.py: SCALE_CHANGED added.
+-05-07  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py (Session.__init__): New instance
+         variable shapestores to hold a list of all open shapestore objects
+         (Session.ShapeStores): New. Accessor method for the shapestores
+         list.
+         (Session._add_shapestore, Session._clean_weak_store_refs): New.
+         Internal methods to maintain the shapestores list.
+         (Session.Tables): New. Return all tables open in the session.
+         (Session.OpenShapefile): Insert the new ShapeStore into the
+         shapestores list.
+         * test/test_session.py (TestSessionSimple.test_initial_state): Add
+         tests for ShapeStores and Tables
+         (TestSessionWithContent.test_shape_stores)
+         (TestSessionWithContent.test_tables): New. Test cases for
+         ShapeStores and Tables
+-05-07  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/transientdb.py (TransientTableBase.ReadRowAsDict):
+         Add comments about the optimizations used.
+         (AutoTransientTable.ReadValue, TransientTableBase.ReadValue): New.
+         Implement the ReadValue table interface method.
+         * test/test_transientdb.py
+         (TestTransientTable.run_iceland_political_tests)
+         (TestTransientTable.test_transient_joined_table): Add tests for
+         ReadValue
+-05-07  Frank Koormann <[email protected]>
+         * Resources/Bitmaps/fulllayerextent.xpm,
+         Resources/Bitmaps/fullselextent.xpm: Replaced the place holders with
+         new icons.
+-05-06  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/transientdb.py (AutoTransientTable.SimpleQuery):
+         New. Simply delegate to the transient table's version.
+         * test/test_transientdb.py
+         (TestTransientTable.test_auto_transient_table_query): New. Test
+         case for AutoTransientTable's SimpleQuery
+-05-06  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/transientdb.py (TransientTableBase.SimpleQuery):
+         Implement a simple query method for the query dialog
+         (TransientTableBase.create): Add an INTEGER PRIMARY KEY that holds
+         the row index or shapeid.
+         (TransientTable.create): Insert the right value of the row index
+         (TransientJoinedTable.create): Copy the row index of the left
+         table to the joined result table
+         * test/test_transientdb.py
+         (TestTransientTable.test_transient_table_read_twice): Fix
+         doc-string
+         (TestTransientTable.test_transient_table_query): New. Test for the
+         SimpleQuery method
+-05-06  Bernhard Herzog  <[email protected]>
+         Convert all table users to use the new table interface. This only
+         covers Thuban itself, not GREAT-ER or other applications built on
+         Thuban yet, so the compatibility interface stays in place for the
+         time being but it now issues DeprecationWarnings.
+         Finally, the new Table interface has a new method, HasColumn.
+         * Thuban/Model/table.py (OldTableInterfaceMixin): All methods
+         issue deprecation warnings when they're. The warnings refer to the
+         caller of the method.
+         (OldTableInterfaceMixin.__deprecation_warning): New. Helper method
+         for the deprecation warnings
+         * test/test_table.py: Ignore the deprecation warnings for the old
+         table in the tests in this module. The purpose of the tests is to
+         test the old interface, after all.
+         * test/test_transientdb.py
+         (TestTransientTable.run_iceland_political_tests): Use the
+         constants for the types. Add a test for HasColumn
+         (TestTransientTable.test_transient_joined_table): Adapt to new
+         table interface. Add a test for HasColumn
+         (TestTransientTable.test_transient_table_read_twice): Adapt to new
+         table interface
+         * Thuban/UI/tableview.py (DataTable.SetTable, DataTable.GetValue):
+         Adapt to new table interface
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Adapt to
+         new table interface
+         * Thuban/UI/controls.py (RecordListCtrl.fill_list)
+         (RecordTable.SetTable): Adapt to new table interface
+         * Thuban/UI/classifier.py (Classifier.__init__)
+         (Classifier.__init__): Adapt to new table interface
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__)
+         (GenUniformPanel._OnRetrieve, GenUniquePanel._OnRetrieve): Adapt
+         to new table interface
+         * Thuban/Model/transientdb.py (TransientTableBase.HasColumn)
+         (AutoTransientTable.HasColumn): Implement the new table interface
+         method
+         (AutoTransientTable.ReadRowAsDict, AutoTransientTable.ValueRange)
+         (AutoTransientTable.UniqueValues): Adapt to new table interface
+         * Thuban/Model/layer.py (Layer.SetShapeStore, Layer.GetFieldType):
+         Adapt to new table interface
+         * test/test_layer.py (TestLayer.open_shapefile): Helper method to
+         simplify opening shapefiles a bit easier.
+         (TestLayer.test_arc_layer, TestLayer.test_polygon_layer)
+         (TestLayer.test_point_layer): Use the new helper method
+         (TestLayer.test_get_field_type): New. Test for the GetFieldType
+         method
+         * test/test_dbf_table.py (TestDBFTable.test_has_column): Test for
+         the new table method
+         * test/test_memory_table.py (TestMemoryTable.test_has_column):
+         Test for the new table method HasColumn
+-05-06  Jonathan Coles   <[email protected]>
+         Addresses the "Selection Extent" wish of RTbug #1787.
+         * Resources/Bitmaps/fulllayerextent.xpm,
+         Resources/Bitmaps/fullselextent.xpm: Bitmaps for layer and selection
+         extent. These are just place holders for the real bitmaps.
+         * Thuban/Model/layer.py (Shape): Since a Shape is immutable only
+         calculate the bounding box once (the first time compute_bbox() is
+         called).
+         (Layer.ShapesBoundingBox): New. Given a list of shape ids, return
+         the bounding box for the shapes in lat/long coordinates.
+         * Thuban/UI/mainwindow.py: Added new "Full selection extent" menu
+         option.
+         (MainWindow.has_selected_shapes): New. Returns true if there are
+         any selected shapes.
+         (MainWindow.FullSelectionExtent): New. Calls
+         MapCanvas.FitSelectedToWindow() when the user selects the menu option.
+         (_has_selected_shapes): New. Returns true if there are any
+         selected shapes.
+         * Thuban/UI/selection.py (Selection.HasSelectedShapes): New. Returns
+         true if there are any selected shapes.
+         * Thuban/UI/view.py (MapCanvas): Added delegated method
+         HasSelectedShapes.
+         (MapCanvas.FitSelectedToWindow): New. Centers and scales any selected
+         shapes on the canvas using the map projection (if any).
+         * test/test_layer.py (TestLayer.test_arc_layer): Add some tests
+         for Layer.ShapesBoundingBox().
+-05-06  Bernhard Herzog  <[email protected]>
+         * Resources/Projections/defaults.proj: Fix spelling of Mercator
+-05-05  Jonathan Coles   <[email protected]>
+         Addresses the "Full Layer Extent" wish of RTbug #1787.
+         * Resources/Projections/defaults.proj: Added UK National Grid.
+         * Thuban/UI/mainwindow.py: Added new "Full layer extent" menu option.
+         (MainWindow.FullLayerExtent): New. Calls MapCanvas.FitLayerToWindow()
+         when the user selects the menu option.
+         * Thuban/UI/view.py (MapCanvas.FitLayerToWindow): New. Centers and
+         scales the given layer on the canvas using the map projection.
+-05-05  Bernhard Herzog  <[email protected]>
+         Convert the table implementations to a new table interface. All
+         tables use a common mixin class to provide backwards compatibility
+         until all table users have been updated.
+         * Thuban/Model/table.py (OldTableInterfaceMixin): Mixin class to
+         provide backwards compatibility for table classes implementing the
+         new interface
+         (DBFTable, MemoryTable): Implement the new table interface. Use
+         OldTableInterfaceMixin as base for compatibility
+         (DBFColumn, MemoryColumn): New. Column description for DBFTable
+         and MemoryTable resp.
+         * test/test_dbf_table.py: New. Test cases for the DBFTable with
+         the new table interface.
+         * test/test_memory_table.py: New. Test cases for the MemoryTable
+         with the new table interface.
+         * test/test_table.py: Document the all tests in this file as only
+         for backwards compatibility. The equivalent tests for the new
+         interface are in test_memory_table.py and test_dbf_table.py
+         (MemoryTableTest.test_read): field_info should be returning tuples
+         with four items
+         (MemoryTableTest.test_write): Make doc-string a more precise.
+         * Thuban/Model/transientdb.py (TransientTableBase): Convert to new
+         table interface. Derive from from OldTableInterfaceMixin for
+         compatibility.
+         (TransientTableBase.create): New intance variable column_map to
+         map from names and indices to column objects
+         (TransientTable.create): Use the new table interface of the input
+         table
+         (AutoTransientTable): Convert to new table interface. Derive from
+         from OldTableInterfaceMixin for compatibility.
+         (AutoTransientTable.write_record): Removed. It's not implemented
+         yet and we still have to decide how to handle writing with the new
+         table and data framework.
+         * test/test_transientdb.py
+         (TestTransientTable.run_iceland_political_tests)
+         (TestTransientTable.test_transient_joined_table): Use the new
+         table interface
+-05-05  Jonathan Coles   <[email protected]>
+         This is namely a collection of UI updates to improve user interactivity.
+         Tabbing between controls now exists and you can use ESC to close dialog
+         boxes; ENTER will active the default button.
+         * Thuban/UI/classgen.py (ClassGenDialog.__init__): Rearrange the
+         order that the controls are created so that tabbing works correctly.
+         (ClassGenDialog.OnOK): Renamed from _OnGenerate() so that the
+         wxDialog can handle the default button correctly.
+         (ClassGenDialog.OnCancel): Renamed from _OnCloseBtn() for the
+         same reasons as for OnOK.
+         (GenUniformPanel._OnRetrieve): Call wxBeginBusyCursor/wxEndBusyCursor
+         when we ask the table for the maximum/minimum values of a field
+         which could take a very long time.
+         * Thuban/UI/classifier.py (Classifier.__init__): Rearrange the
+         order that the controls are created so that tabbing works correctly.
+         (SelectPropertiesDialog.__init__): Rearrange the order that the
+         controls are created so that tabbing works correctly.
+         * Thuban/UI/dialogs.py: Copied NonModalDialog box and changed it
+         to derive from a wxDialog but behave like the original implementation
+         which was derived from a wxFrame. wxDialog provides useful key
+         handling functionality like ESC calling OnCancel and ENTER calling
+         OnOK which is lost with wxFrame.
+         * Thuban/UI/mainwindow.py: Add "..." to menu items that will open
+         new dialogs.
+         * Thuban/UI/projdialog.py (ProjFrame.__init__): Rearrange the
+         order that the controls are created so that tabbing works correctly.
+         (ProjFrame.OnApply): Renamed from _OnTry() to use wxDialog behaviour.
+         (ProjFrame.OnOK): Renamed from _OnOK() to use wxDialog behaviour.
+         (ProjFrame.OnCancel): Renamed from _OnClose() to use wxDialog behaviour.
+         (ProjPanel.__init__): Add "Airy" to the list of ellipsoids so we
+         can provide the "UK National Grid" as a default projection.
+         (UTMPanel.__init__): Rearrange the order that the controls are
+         created so that tabbing works correctly.
+-05-05  Bernhard Herzog  <[email protected]>
+         * extensions/thuban/wxproj.cpp: Fix some of the comments.
+         (project_point): If a map projection but no layer projection is
+         given, convert degrees to radians before applying the map
+         projection.
+         * Thuban/UI/tableview.py (TableGrid.disallow_messages)
+         (TableGrid.allow_messages): New methods to make it possible to
+         inhibit message sending.
+         (TableGrid.issue): Only send the message if not inhibited.
+         (LayerTableGrid.select_shape): Use the new methods to make sure
+         that no ROW_SELECTED message is sent while we're updating the
+         selected rows to match the selected shapes.
+-05-02  Jan-Oliver Wagner <[email protected]>
+         Implementation of MemoryTable.
+         * Thuban/Model/table.py (MemoryTable): New. Quite simple table
+         implementation that operates on a list of tuples. All of the data
+         are kept in the memory.
+         * test/test_table.py (MemoryTableTest): New.
+         * test/test_transientdb.py (SimpleTable): Removed.
+         (TestTransientTable.test_transient_joined_table,
+         (TestTransientTable.test_transient_table_read_twice): Replaced
+         SimpleTable by MemoryTable.
+-04-30  Jonathan Coles   <[email protected]>
+         * Data/iceland_sample.thuban: Now contains correct projections
+         for each of the layers.
+         * Resources/Projections/defaults.proj: Geographic projection
+         contains unit conversion parameter.
+-04-30  Jonathan Coles   <[email protected]>
+         The most important part of this putback is the projection changes.
+         It should now be possible to specify the projection that a layer
+         is in and then specify a different projection for the map. The
+         projection dialog has an extra parameter for a geographic projection
+         which lets the user select if the input is in degrees or radians.
+         * Thuban/Model/layer.py (Layer.ShapesInRegion): Fix docstring
+         to say that the parameter is a tuple of unprojected
+         points (which is what the callers to this method were assuming).
+         Also, since the points are unprojected we need to projected them.
+         * Thuban/UI/legend.py (LegendTree.MoveCurrentItemUp,
+         LegendTree.MoveCurrentItemDown): If the layer or any of the layer's
+         groups are selected, move the layer up/down. Fixes RTbug #1833.
+         * Thuban/UI/mainwindow.py: Move menu item map_rename up.
+         * Thuban/UI/projdialog.py (ProjFrame._OnSave): Add missing
+         parameter in call to SetClientData.
+         (GeoPanel): Add support for selecting the units that the
+         source data is in (Radians or Degrees).
+         * Thuban/UI/renderer.py (MapRenderer.draw_shape_layer): Optimize
+         the rendering loop by reducing the number of if's, removing the
+         unnecessary try/except block, and checking if the old group
+         is the same as the new one (which happens a lot if there is
+         no classification, or lots of shapes are in the same group).
+         * Thuban/UI/view.py (MapCanvas.OnPaint): Add a try/except block
+         around the redraw routine to try to catch problems that the user
+         may create by selecting invalid projections for the data set and
+         map. Clears the display if there are any problems and prints the
+         error.
+         (MapCanvas.do_redraw): Use DC.Clear() instead of drawing a filled
+         rectangle.
+         * extensions/thuban/wxproj.cpp (project_point): First invert the
+         supplied point (which should be in projected coordinates) using
+         the layer's projection and then project the point using the
+         map's projection.
+         (project_points): Use project_point() to project each point.
+-04-30  Jan-Oliver Wagner <[email protected]>
+         * Thuban/Model/layer.py (Layer.SetShapeStore): Fixed a bug:
+         don't set the Classification to None if the classfication field
+         is None (ie only a DEFAULT).
+-04-30  Bernhard Herzog  <[email protected]>
+         * Thuban/UI/view.py: Fix some typos.
+         * Thuban/UI/mainwindow.py (MainWindow.identify_view_on_demand): Do
+         not pop up the dialog if the selection becomes empty (this could
+         happen if e.g. a new selection is opened while the identify tool
+         is active and dialog had been closed)
+-04-30  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/transientdb.py (TransientTableBase.__init__): New
+         instance variable read_record_last_result
+         (TransientTableBase.read_record): Make sure reading the same
+         record twice works. The implementation uses the new instance
+         variable read_record_last_result
+         * test/test_transientdb.py
+         (TestTransientTable.test_transient_table_read_twice): New test
+         case for the above bug-fix.
+-04-29  Jonathan Coles   <[email protected]>
+         * Thuban/common.py: Removed. No longer needed Str2Num. RTbug #1832.
+         * Thuban/UI/classgen.py: Remove all uses of Str2Num.
+         * Thuban/UI/classifier.py: Remove all uses of Str2Num.
+         (ClassTable.SetValueAsCustom): Rename keyword argument in
+         ClassGroup* constructors to match argument name.
+-04-29  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/session.py (Session.Destroy): Explicitly close the
+         transient DB if it exists to make sure it doesn't leave a journal
+         file in the temp directory.
+         * Thuban/Model/transientdb.py (TransientDatabase.close): Set
+         self.conn to None after closing the connection to make sure it's
+         not closed twice
+-04-29  Jonathan Coles   <[email protected]>
+         Add a visible parameter in the layer XML tag. The default value is
+         "true". If anything other than "false" is specified we also assume
+         "true". Addresses RTbug #1025.
+         * Doc/thuban.dtd: Add visible parameter to a layer.
+         * Thuban/Model/layer.py (BaseLayer.__init__): Change default value
+         of visible from 1 to True.
+         (Layer.__init__): Change default value of visible from 1 to True.
+         * Thuban/Model/load.py (SessionLoader.start_layer): Read visible
+         parameter.
+         * Thuban/Model/save.py (SessionSaver.write_layer): Save visible
+         parameter.
+         * test/test_load.py: Add new test data contents_test_visible.
+         (LoadSessionTest.setUp): save test data.
+         (LoadSessionTest.testLayerVisibility): Test if the visible flag
+         is loaded correctly.
+         * test/test_save.py (SaveSessionTest.testSingleLayer): Add test
+         for saving an invisible layer.
+-04-29  Jonathan Coles   <[email protected]>
+         * Thuban/UI/mainwindow.py (MainWindow.SetMap): Look up the
+         legend dialog box and tell it to change its map to the one
+         supplied to SetMap(). Fixes RTbug #1770.
+-04-29  Bernhard Herzog  <[email protected]>
+         Next step of table implementation. Introduce a transient database
+         using SQLite that some of the data is copied to on demand. This
+         allows us to do joins and other operations that require an index
+         for good performance with reasonable efficiency. Thuban now needs
+         SQLite 2.8.0 and pysqlite 0.4.1. Older versions may work but I
+         haven't tested that.
+         * Thuban/Model/transientdb.py: New. Transient database
+         implementation.
+         * test/test_transientdb.py: New. Tests for the transient DB
+         classes.
+         * Thuban/Model/session.py (AutoRemoveFile, AutoRemoveDir): New
+         classes to help automatically remove temporary files and
+         directories.
+         (Session.__init__): New instance variables temp_dir for the
+         temporary directory and transient_db for the SQLite database
+         (Session.temp_directory): New. Create a temporary directory if not
+         yet done and return its name. Use AutoRemoveDir to have it
+         automatically deleted
+         (Session.TransientDB): Instantiate the transient database if not
+         done yet and return it.
+         * Thuban/Model/data.py (ShapefileStore.__init__): Use an
+         AutoTransientTable so that data is copied to the transient DB on
+         demand.
+         (SimpleStore): New class that simply combines a table and a
+         shapefile
+         * Thuban/Model/table.py (Table, DBFTable): Rename Table into
+         DBFTable and update its doc-string to reflect the fact that this
+         is only the table interface to a DBF file. Table is now an alias
+         for DBFTable for temporary backwards compatibility.
+         * Thuban/UI/application.py (ThubanApplication.OnExit): Make sure
+         the last reference to the session goes away so that the temporary
+         files are removed properly.
+         * test/test_load.py (LoadSessionTest.tearDown): Remove the
+         reference to the session to make sure the temporary files are
+         removed.
+-04-29  Bernhard Herzog  <[email protected]>
+         * Thuban/Model/load.py (XMLReader.__init__, XMLReader.read): Turn
+         the __parser instance variable into a normal local variable in
+         read. It's only used there and read will never be called more than
+         once. Plus it introduces a reference cycle that keeps can keep the
+         session object alive for a long time.
+-04-29  Jonathan Coles   <[email protected]>
          * Thuban/Model/proj.py (Projection): Removed Set*() methods to make
          Projection an immutable item. Fixes RTbug #1825.

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