/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1648 by bh, Mon Aug 25 13:55:35 2003 UTC revision 2102 by bh, Thu Mar 11 21:04:30 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
# Line 19  import os Line 19  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, has_postgis_support  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
# Line 103  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 134  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 371  class MainWindow(DockFrame): Line 378  class MainWindow(DockFrame):
378    
379      def OpenSession(self):      def OpenSession(self):
380          if self.save_modified_session() != wxID_CANCEL:          if self.save_modified_session() != wxID_CANCEL:
381              dlg = wxFileDialog(self, _("Open Session"), ".", "",              dlg = wxFileDialog(self, _("Open Session"),
382                                   self.application.Path("data"), "",
383                                 "Thuban Session File (*.thuban)|*.thuban",                                 "Thuban Session File (*.thuban)|*.thuban",
384                                 wxOPEN)                                 wxOPEN)
385              if dlg.ShowModal() == wxID_OK:              if dlg.ShowModal() == wxID_OK:
386                  self.application.OpenSession(dlg.GetPath(),                  self.application.OpenSession(dlg.GetPath(),
387                                               self.run_db_param_dialog)                                               self.run_db_param_dialog)
388                    self.application.SetPath("data", dlg.GetPath())
389              dlg.Destroy()              dlg.Destroy()
390    
391      def run_db_param_dialog(self, parameters, message):      def run_db_param_dialog(self, parameters, message):
# Line 391  class MainWindow(DockFrame): Line 400  class MainWindow(DockFrame):
400              self.application.SaveSession()              self.application.SaveSession()
401    
402      def SaveSessionAs(self):      def SaveSessionAs(self):
403          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
404                               self.application.Path("data"), "",
405                             "Thuban Session File (*.thuban)|*.thuban",                             "Thuban Session File (*.thuban)|*.thuban",
406                             wxSAVE|wxOVERWRITE_PROMPT)                             wxSAVE|wxOVERWRITE_PROMPT)
407          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
408              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
409              self.application.SaveSession()              self.application.SaveSession()
410                self.application.SetPath("data",dlg.GetPath())
411          dlg.Destroy()          dlg.Destroy()
412    
413      def Exit(self):      def Exit(self):
# Line 419  class MainWindow(DockFrame): Line 430  class MainWindow(DockFrame):
430    
431      def SetMap(self, map):      def SetMap(self, map):
432          self.canvas.SetMap(map)          self.canvas.SetMap(map)
433          self.__SetTitle(map.Title())          self.update_title()
434    
435          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
436          if dialog is not None:          if dialog is not None:
# Line 461  class MainWindow(DockFrame): Line 472  class MainWindow(DockFrame):
472          dialog.Raise()          dialog.Raise()
473    
474      def AddLayer(self):      def AddLayer(self):
475          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",          dlg = wxFileDialog(self, _("Select one or more data files"),
476                             _("Shapefiles (*.shp)") + "|*.shp|" +                             self.application.Path("data"), "",
477                             _("All Files (*.*)") + "|*.*",                             _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
478                               _("All Files (*.*)") + "|*.*",
479                             wxOPEN | wxMULTIPLE)                             wxOPEN | wxMULTIPLE)
480          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
481              filenames = dlg.GetPaths()              filenames = dlg.GetPaths()
# Line 484  class MainWindow(DockFrame): Line 496  class MainWindow(DockFrame):
496                          # if we're adding a layer to an empty map, fit the                          # if we're adding a layer to an empty map, fit the
497                          # new map to the window                          # new map to the window
498                          self.canvas.FitMapToWindow()                          self.canvas.FitMapToWindow()
499                        self.application.SetPath("data",filename)
500          dlg.Destroy()          dlg.Destroy()
501    
502      def AddRasterLayer(self):      def AddRasterLayer(self):
503          dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select an image file"),
504                               self.application.Path("data"), "", "*.*",
505                             wxOPEN)                             wxOPEN)
506          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
507              filename = dlg.GetPath()              filename = dlg.GetPath()
# Line 506  class MainWindow(DockFrame): Line 520  class MainWindow(DockFrame):
520                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
521                      # new map to the window                      # new map to the window
522                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
523                    self.application.SetPath("data", filename)
524          dlg.Destroy()          dlg.Destroy()
525    
526      def AddDBLayer(self):      def AddDBLayer(self):
527          """Add a layer read from a database"""          """Add a layer read from a database"""
528          session = self.application.Session()          session = self.application.Session()
529          dlg = ChooseDBTableDialog(self.application.Session(), self,-1, "")          dlg = ChooseDBTableDialog(self, self.application.Session())
530    
531          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
532              dbconn, dbtable = dlg.GetTable()              dbconn, dbtable, id_column, geo_column = dlg.GetTable()
533              try:              try:
534                  title = str(dbtable)                  title = str(dbtable)
535    
536                  # Chose the correct Interface for the database type                  # Chose the correct Interface for the database type
537                  store = PostGISShapeStore(dbconn, dbtable)                  store = session.OpenDBShapeStore(dbconn, dbtable,
538                  session.AddShapeStore(store)                                                   id_column = id_column,
539                                                     geometry_column = geo_column)
540                  layer = Layer(title, store)                  layer = Layer(title, store)
541              except:              except:
542                  # Some error occured while initializing the layer                  # Some error occured while initializing the layer
543                  self.RunMessageBox(_("Add Layer from database"),                  self.RunMessageBox(_("Add Layer from database"),
544                                     _("Can't open the database table '%s'")                                     _("Can't open the database table '%s'")
545                                     % dbtable)                                     % dbtable)
546                    return
547    
548              map = self.canvas.Map()              map = self.canvas.Map()
549    
# Line 576  class MainWindow(DockFrame): Line 593  class MainWindow(DockFrame):
593          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
594          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
595    
596        def has_selected_shape_layer(self):
597            """Return true if a shape layer is currently selected"""
598            return isinstance(self.current_layer(), Layer)
599    
600      def has_selected_shapes(self):      def has_selected_shapes(self):
601          """Return true if a shape is currently selected"""          """Return true if a shape is currently selected"""
602          return self.canvas.HasSelectedShapes()          return self.canvas.HasSelectedShapes()
# Line 711  class MainWindow(DockFrame): Line 732  class MainWindow(DockFrame):
732          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
733    
734      def TableOpen(self):      def TableOpen(self):
735          dlg = wxFileDialog(self, _("Open Table"), ".", "",          dlg = wxFileDialog(self, _("Open Table"),
736                               self.application.Path("data"), "",
737                             _("DBF Files (*.dbf)") + "|*.dbf|" +                             _("DBF Files (*.dbf)") + "|*.dbf|" +
738                             #_("CSV Files (*.csv)") + "|*.csv|" +                             #_("CSV Files (*.csv)") + "|*.csv|" +
739                             _("All Files (*.*)") + "|*.*",                             _("All Files (*.*)") + "|*.*",
# Line 727  class MainWindow(DockFrame): Line 749  class MainWindow(DockFrame):
749                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
750              else:              else:
751                  self.ShowTableView(table)                  self.ShowTableView(table)
752                    self.application.SetPath("data",filename)
753    
754      def TableClose(self):      def TableClose(self):
755          tables = self.application.session.UnreferencedTables()          tables = self.application.session.UnreferencedTables()
# Line 803  class MainWindow(DockFrame): Line 826  class MainWindow(DockFrame):
826    
827          # Second, let the user rename the layers          # Second, let the user rename the layers
828          for table in to_rename:          for table in to_rename:
829              dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",              dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
830                                      table.Title())                                      table.Title())
831              try:              try:
832                  if dlg.ShowModal() == wxID_OK:                  if dlg.ShowModal() == wxID_OK:
# Line 852  class MainWindow(DockFrame): Line 875  class MainWindow(DockFrame):
875          self.canvas.Print()          self.canvas.Print()
876    
877      def RenameMap(self):      def RenameMap(self):
878          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
879                                  self.Map().Title())                                  self.Map().Title())
880          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
881              title = dlg.GetValue()              title = dlg.GetValue()
882              if title != "":              if title != "":
883                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
884    
885          dlg.Destroy()          dlg.Destroy()
886    
# Line 866  class MainWindow(DockFrame): Line 888  class MainWindow(DockFrame):
888          """Let the user rename the currently selected layer"""          """Let the user rename the currently selected layer"""
889          layer = self.current_layer()          layer = self.current_layer()
890          if layer is not None:          if layer is not None:
891              dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",              dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
892                                      layer.Title())                                      layer.Title())
893              try:              try:
894                  if dlg.ShowModal() == wxID_OK:                  if dlg.ShowModal() == wxID_OK:
# Line 900  class MainWindow(DockFrame): Line 922  class MainWindow(DockFrame):
922                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
923                  pass                  pass
924    
925      def __SetTitle(self, title):      def title_changed(self, map):
926          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
927            self.update_title()
928    
929        def update_title(self):
930            """Update the window's title according to it's current state.
931    
932            In this default implementation the title is 'Thuban - ' followed
933            by the map's title or simply 'Thuban' if there is not map.
934            Derived classes should override this method to get different
935            titles.
936    
937            This method is called automatically by other methods when the
938            title may have to change. For the methods implemented in this
939            class this usually only means that a different map has been set
940            or the current map's title has changed.
941            """
942            map = self.Map()
943            if map is not None:
944                title = _("Thuban - %s") % (map.Title(),)
945            else:
946                title = _("Thuban")
947            self.SetTitle(title)
948    
949    
950  #  #
951  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 943  def _has_selected_layer(context): Line 987  def _has_selected_layer(context):
987      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
988      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
989    
990    def _has_selected_shape_layer(context):
991        """Return true if a shape layer is selected in the context"""
992        return context.mainwindow.has_selected_shape_layer()
993    
994  def _has_selected_shapes(context):  def _has_selected_shapes(context):
995      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
996      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 1079  _method_command("layer_hide", _("&Hide") Line 1127  _method_command("layer_hide", _("&Hide")
1127                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1128  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1129                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1130                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1131  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1132                  sensitive = _has_selected_layer,                  sensitive = _has_selected_layer,
1133                  helptext = _("Edit the properties of the selected layer"))                  helptext = _("Edit the properties of the selected layer"))
1134  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1135                  sensitive = _has_selected_layer,                  sensitive = _has_selected_shape_layer,
1136                  helptext = _("Join and attach a table to the selected layer"))                  helptext = _("Join and attach a table to the selected layer"))
1137    
1138  def _can_unjoin(context):  def _can_unjoin(context):
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