/[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 2163 by joey, Tue Apr 13 10:10:34 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 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 372  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)
388                    self.application.SetPath("data", dlg.GetPath())
389              dlg.Destroy()              dlg.Destroy()
390    
391        def run_db_param_dialog(self, parameters, message):
392            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
393                           message)
394            return dlg.RunDialog()
395    
396      def SaveSession(self):      def SaveSession(self):
397          if self.application.session.filename == None:          if self.application.session.filename == None:
398              self.SaveSessionAs()              self.SaveSessionAs()
# Line 386  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 414  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 456  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 479  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 501  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 571  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 615  class MainWindow(DockFrame): Line 641  class MainWindow(DockFrame):
641                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
642                  dialog.Show(True)                  dialog.Show(True)
643              else:              else:
644                  # FIXME: bring dialog to front here                  dialog.Raise()
                 pass  
645    
646      def MapProjection(self):      def MapProjection(self):
647    
# Line 706  class MainWindow(DockFrame): Line 731  class MainWindow(DockFrame):
731          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
732    
733      def TableOpen(self):      def TableOpen(self):
734          dlg = wxFileDialog(self, _("Open Table"), ".", "",          dlg = wxFileDialog(self, _("Open Table"),
735                               self.application.Path("data"), "",
736                             _("DBF Files (*.dbf)") + "|*.dbf|" +                             _("DBF Files (*.dbf)") + "|*.dbf|" +
737                             #_("CSV Files (*.csv)") + "|*.csv|" +                             #_("CSV Files (*.csv)") + "|*.csv|" +
738                             _("All Files (*.*)") + "|*.*",                             _("All Files (*.*)") + "|*.*",
# Line 722  class MainWindow(DockFrame): Line 748  class MainWindow(DockFrame):
748                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
749              else:              else:
750                  self.ShowTableView(table)                  self.ShowTableView(table)
751                    self.application.SetPath("data",filename)
752    
753      def TableClose(self):      def TableClose(self):
754          tables = self.application.session.UnreferencedTables()          tables = self.application.session.UnreferencedTables()
# Line 798  class MainWindow(DockFrame): Line 825  class MainWindow(DockFrame):
825    
826          # Second, let the user rename the layers          # Second, let the user rename the layers
827          for table in to_rename:          for table in to_rename:
828              dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",              dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
829                                      table.Title())                                      table.Title())
830              try:              try:
831                  if dlg.ShowModal() == wxID_OK:                  if dlg.ShowModal() == wxID_OK:
# Line 847  class MainWindow(DockFrame): Line 874  class MainWindow(DockFrame):
874          self.canvas.Print()          self.canvas.Print()
875    
876      def RenameMap(self):      def RenameMap(self):
877          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
878                                  self.Map().Title())                                  self.Map().Title())
879          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
880              title = dlg.GetValue()              title = dlg.GetValue()
881              if title != "":              if title != "":
882                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
883    
884          dlg.Destroy()          dlg.Destroy()
885    
# Line 861  class MainWindow(DockFrame): Line 887  class MainWindow(DockFrame):
887          """Let the user rename the currently selected layer"""          """Let the user rename the currently selected layer"""
888          layer = self.current_layer()          layer = self.current_layer()
889          if layer is not None:          if layer is not None:
890              dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",              dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
891                                      layer.Title())                                      layer.Title())
892              try:              try:
893                  if dlg.ShowModal() == wxID_OK:                  if dlg.ShowModal() == wxID_OK:
# Line 895  class MainWindow(DockFrame): Line 921  class MainWindow(DockFrame):
921                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
922                  pass                  pass
923    
924      def __SetTitle(self, title):      def title_changed(self, map):
925          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
926            self.update_title()
927    
928        def update_title(self):
929            """Update the window's title according to it's current state.
930    
931            In this default implementation the title is 'Thuban - ' followed
932            by the map's title or simply 'Thuban' if there is not map.
933            Derived classes should override this method to get different
934            titles.
935    
936            This method is called automatically by other methods when the
937            title may have to change. For the methods implemented in this
938            class this usually only means that a different map has been set
939            or the current map's title has changed.
940            """
941            map = self.Map()
942            if map is not None:
943                title = _("Thuban - %s") % (map.Title(),)
944            else:
945                title = _("Thuban")
946            self.SetTitle(title)
947    
948    
949  #  #
950  # 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 986  def _has_selected_layer(context):
986      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
987      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
988    
989    def _has_selected_shape_layer(context):
990        """Return true if a shape layer is selected in the context"""
991        return context.mainwindow.has_selected_shape_layer()
992    
993  def _has_selected_shapes(context):  def _has_selected_shapes(context):
994      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
995      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 972  def _has_dbconnections(context): Line 1024  def _has_dbconnections(context):
1024      """Return whether the the session has database connections"""      """Return whether the the session has database connections"""
1025      return context.session.HasDBConnections()      return context.session.HasDBConnections()
1026    
1027    def _has_postgis_support(context):
1028        return has_postgis_support()
1029    
1030    
1031  # File menu  # File menu
1032  _method_command("new_session", _("&New Session"), "NewSession",  _method_command("new_session", _("&New Session"), "NewSession",
1033                  helptext = _("Start a new session"))                  helptext = _("Start a new session"))
# Line 988  _method_command("toggle_legend", _("Lege Line 1044  _method_command("toggle_legend", _("Lege
1044                  checked = _has_legend_shown,                  checked = _has_legend_shown,
1045                  helptext = _("Toggle Legend on/off"))                  helptext = _("Toggle Legend on/off"))
1046  _method_command("database_management", _("&Database Connections..."),  _method_command("database_management", _("&Database Connections..."),
1047                  "DatabaseManagement")                  "DatabaseManagement",
1048                    sensitive = _has_postgis_support)
1049  _method_command("exit", _("E&xit"), "Exit",  _method_command("exit", _("E&xit"), "Exit",
1050                  helptext = _("Finish working with Thuban"))                  helptext = _("Finish working with Thuban"))
1051    
# Line 1069  _method_command("layer_hide", _("&Hide") Line 1126  _method_command("layer_hide", _("&Hide")
1126                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1127  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1128                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1129                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1130  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1131                  sensitive = _has_selected_layer,                  sensitive = _has_selected_layer,
1132                  helptext = _("Edit the properties of the selected layer"))                  helptext = _("Edit the properties of the selected layer"))
1133  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1134                  sensitive = _has_selected_layer,                  sensitive = _has_selected_shape_layer,
1135                  helptext = _("Join and attach a table to the selected layer"))                  helptext = _("Join and attach a table to the selected layer"))
1136    
1137  def _can_unjoin(context):  def _can_unjoin(context):
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  Added in v.2163
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