/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1622 by jan, Thu Aug 21 11:56:06 2003 UTC revision 2019 by bh, Wed Dec 3 18:56:23 2003 UTC
# Line 12  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16  __ThubanVersion__ = "0.8" #"$THUBAN_0_2$"  # $Id$
 #__BuildDate__ = "$Date$"  
17    
18  import os  import os
19  import copy  import copy
20    
21  from wxPython.wx import *  from wxPython.wx import *
 from wxPython.wx import __version__ as wxPython_version  
22    
23  import Thuban  import Thuban
 import Thuban.version  
24    
25  from Thuban import _  from Thuban import _
26    from Thuban.Model.messages import TITLE_CHANGED
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.layer import Layer, RasterLayer  from Thuban.Model.layer import Layer, RasterLayer
29  from Thuban.Model.postgisdb import PostGISShapeStore  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30  # XXX: replace this by  # XXX: replace this by
31  # from wxPython.lib.dialogs import wxMultipleChoiceDialog  # from wxPython.lib.dialogs import wxMultipleChoiceDialog
32  # when Thuban does not support wxPython 2.4.0 any more.  # when Thuban does not support wxPython 2.4.0 any more.
# Line 49  from about import About Line 47  from about import About
47    
48  from Thuban.UI.dock import DockFrame  from Thuban.UI.dock import DockFrame
49  from Thuban.UI.join import JoinDialog  from Thuban.UI.join import JoinDialog
50  from Thuban.UI.dbdialog import DBFrame, ChooseDBTableDialog  from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
51  import resource  import resource
52  import Thuban.Model.resource  import Thuban.Model.resource
53    
# Line 104  class MainWindow(DockFrame): Line 102  class MainWindow(DockFrame):
102          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
103          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
104          self.canvas = canvas          self.canvas = canvas
105            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
106    
107          self.SetMainWindow(self.canvas)          self.SetMainWindow(self.canvas)
108    
# Line 135  class MainWindow(DockFrame): Line 134  class MainWindow(DockFrame):
134          """          """
135          if channel in self.delegated_messages:          if channel in self.delegated_messages:
136              object = getattr(self, self.delegated_messages[channel])              object = getattr(self, self.delegated_messages[channel])
137              object.Unsubscribe(channel, *args)              try:
138                    object.Unsubscribe(channel, *args)
139                except wxPyDeadObjectError:
140                    # The object was a wxObject and has already been
141                    # destroyed. Hopefully it has unsubscribed all its
142                    # subscribers already so that it's OK if we do nothing
143                    # here
144                    pass
145    
146      def __getattr__(self, attr):      def __getattr__(self, attr):
147          """If attr is one of the delegated methods return that method          """If attr is one of the delegated methods return that method
# Line 376  class MainWindow(DockFrame): Line 382  class MainWindow(DockFrame):
382                                 "Thuban Session File (*.thuban)|*.thuban",                                 "Thuban Session File (*.thuban)|*.thuban",
383                                 wxOPEN)                                 wxOPEN)
384              if dlg.ShowModal() == wxID_OK:              if dlg.ShowModal() == wxID_OK:
385                  self.application.OpenSession(dlg.GetPath())                  self.application.OpenSession(dlg.GetPath(),
386                                                 self.run_db_param_dialog)
387              dlg.Destroy()              dlg.Destroy()
388    
389        def run_db_param_dialog(self, parameters, message):
390            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
391                           message)
392            return dlg.RunDialog()
393    
394      def SaveSession(self):      def SaveSession(self):
395          if self.application.session.filename == None:          if self.application.session.filename == None:
396              self.SaveSessionAs()              self.SaveSessionAs()
# Line 414  class MainWindow(DockFrame): Line 426  class MainWindow(DockFrame):
426    
427      def SetMap(self, map):      def SetMap(self, map):
428          self.canvas.SetMap(map)          self.canvas.SetMap(map)
429          self.__SetTitle(map.Title())          self.update_title()
430    
431          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
432          if dialog is not None:          if dialog is not None:
# Line 457  class MainWindow(DockFrame): Line 469  class MainWindow(DockFrame):
469    
470      def AddLayer(self):      def AddLayer(self):
471          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
472                             _("Shapefiles (*.shp)") + "|*.shp|" +                             _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
473                             _("All Files (*.*)") + "|*.*",                             _("All Files (*.*)") + "|*.*",
474                             wxOPEN | wxMULTIPLE)                             wxOPEN | wxMULTIPLE)
475          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
476              filenames = dlg.GetPaths()              filenames = dlg.GetPaths()
# Line 506  class MainWindow(DockFrame): Line 518  class MainWindow(DockFrame):
518      def AddDBLayer(self):      def AddDBLayer(self):
519          """Add a layer read from a database"""          """Add a layer read from a database"""
520          session = self.application.Session()          session = self.application.Session()
521          dlg = ChooseDBTableDialog(self.application.Session(), self,-1, "")          dlg = ChooseDBTableDialog(self, self.application.Session())
522    
523          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
524              dbconn, dbtable = dlg.GetTable()              dbconn, dbtable = dlg.GetTable()
# Line 571  class MainWindow(DockFrame): Line 583  class MainWindow(DockFrame):
583          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
584          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
585    
586        def has_selected_shape_layer(self):
587            """Return true if a shape layer is currently selected"""
588            return isinstance(self.current_layer(), Layer)
589    
590      def has_selected_shapes(self):      def has_selected_shapes(self):
591          """Return true if a shape is currently selected"""          """Return true if a shape is currently selected"""
592          return self.canvas.HasSelectedShapes()          return self.canvas.HasSelectedShapes()
# Line 853  class MainWindow(DockFrame): Line 869  class MainWindow(DockFrame):
869              title = dlg.GetValue()              title = dlg.GetValue()
870              if title != "":              if title != "":
871                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
872    
873          dlg.Destroy()          dlg.Destroy()
874    
# Line 895  class MainWindow(DockFrame): Line 910  class MainWindow(DockFrame):
910                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
911                  pass                  pass
912    
913      def __SetTitle(self, title):      def title_changed(self, map):
914          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
915            self.update_title()
916    
917        def update_title(self):
918            """Update the window's title according to it's current state.
919    
920            In this default implementation the title is 'Thuban - ' followed
921            by the map's title or simply 'Thuban' if there is not map.
922            Derived classes should override this method to get different
923            titles.
924    
925            This method is called automatically by other methods when the
926            title may have to change. For the methods implemented in this
927            class this usually only means that a different map has been set
928            or the current map's title has changed.
929            """
930            map = self.Map()
931            if map is not None:
932                title = _("Thuban - %s") % (map.Title(),)
933            else:
934                title = _("Thuban")
935            self.SetTitle(title)
936    
937    
938  #  #
939  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 938  def _has_selected_layer(context): Line 975  def _has_selected_layer(context):
975      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
976      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
977    
978    def _has_selected_shape_layer(context):
979        """Return true if a shape layer is selected in the context"""
980        return context.mainwindow.has_selected_shape_layer()
981    
982  def _has_selected_shapes(context):  def _has_selected_shapes(context):
983      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
984      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 972  def _has_dbconnections(context): Line 1013  def _has_dbconnections(context):
1013      """Return whether the the session has database connections"""      """Return whether the the session has database connections"""
1014      return context.session.HasDBConnections()      return context.session.HasDBConnections()
1015    
1016    def _has_postgis_support(context):
1017        return has_postgis_support()
1018    
1019    
1020  # File menu  # File menu
1021  _method_command("new_session", _("&New Session"), "NewSession",  _method_command("new_session", _("&New Session"), "NewSession",
1022                  helptext = _("Start a new session"))                  helptext = _("Start a new session"))
# Line 988  _method_command("toggle_legend", _("Lege Line 1033  _method_command("toggle_legend", _("Lege
1033                  checked = _has_legend_shown,                  checked = _has_legend_shown,
1034                  helptext = _("Toggle Legend on/off"))                  helptext = _("Toggle Legend on/off"))
1035  _method_command("database_management", _("&Database Connections..."),  _method_command("database_management", _("&Database Connections..."),
1036                  "DatabaseManagement")                  "DatabaseManagement",
1037                    sensitive = _has_postgis_support)
1038  _method_command("exit", _("E&xit"), "Exit",  _method_command("exit", _("E&xit"), "Exit",
1039                  helptext = _("Finish working with Thuban"))                  helptext = _("Finish working with Thuban"))
1040    
# Line 1069  _method_command("layer_hide", _("&Hide") Line 1115  _method_command("layer_hide", _("&Hide")
1115                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1116  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1117                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1118                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1119  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1120                  sensitive = _has_selected_layer,                  sensitive = _has_selected_layer,
1121                  helptext = _("Edit the properties of the selected layer"))                  helptext = _("Edit the properties of the selected layer"))
1122  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1123                  sensitive = _has_selected_layer,                  sensitive = _has_selected_shape_layer,
1124                  helptext = _("Join and attach a table to the selected layer"))                  helptext = _("Join and attach a table to the selected layer"))
1125    
1126  def _can_unjoin(context):  def _can_unjoin(context):
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