/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1464 by bh, Fri Jul 18 18:20:40 2003 UTC revision 2184 by jan, Fri Apr 16 08:21:12 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, 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, 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 445  class MainWindow(DockFrame): Line 461  class MainWindow(DockFrame):
461          dlg.ShowModal()          dlg.ShowModal()
462          dlg.Destroy()          dlg.Destroy()
463    
464        def DatabaseManagement(self):
465            name = "dbmanagement"
466            dialog = self.get_open_dialog(name)
467            if dialog is None:
468                map = self.canvas.Map()
469                dialog = DBFrame(self, name, self.application.Session())
470                self.add_dialog(name, dialog)
471                dialog.Show()
472            dialog.Raise()
473    
474      def AddLayer(self):      def AddLayer(self):
475          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
476                             wxOPEN)                             self.application.Path("data"), "",
477                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
478                               _("All Files (*.*)") + "|*.*",
479                               wxOPEN | wxMULTIPLE)
480          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
481              filename = dlg.GetPath()              filenames = dlg.GetPaths()
482              title = os.path.splitext(os.path.basename(filename))[0]              for filename in filenames:
483              map = self.canvas.Map()                  title = os.path.splitext(os.path.basename(filename))[0]
484              has_layers = map.HasLayers()                  map = self.canvas.Map()
485              try:                  has_layers = map.HasLayers()
486                  store = self.application.Session().OpenShapefile(filename)                  try:
487              except IOError:                      store = self.application.Session().OpenShapefile(filename)
488                  # the layer couldn't be opened                  except IOError:
489                  self.RunMessageBox(_("Add Layer"),                      # the layer couldn't be opened
490                                     _("Can't open the file '%s'.") % filename)                      self.RunMessageBox(_("Add Layer"),
491              else:                                         _("Can't open the file '%s'.")%filename)
492                  layer = Layer(title, store)                  else:
493                  map.AddLayer(layer)                      layer = Layer(title, store)
494                  if not has_layers:                      map.AddLayer(layer)
495                      # if we're adding a layer to an empty map, fit the                      if not has_layers:
496                      # new map to the window                          # if we're adding a layer to an empty map, fit the
497                      self.canvas.FitMapToWindow()                          # new map to the window
498                            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 488  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()
525    
526        def AddDBLayer(self):
527            """Add a layer read from a database"""
528            session = self.application.Session()
529            dlg = ChooseDBTableDialog(self, self.application.Session())
530    
531            if dlg.ShowModal() == wxID_OK:
532                dbconn, dbtable, id_column, geo_column = dlg.GetTable()
533                try:
534                    title = str(dbtable)
535    
536                    # Chose the correct Interface for the database type
537                    store = session.OpenDBShapeStore(dbconn, dbtable,
538                                                     id_column = id_column,
539                                                     geometry_column = geo_column)
540                    layer = Layer(title, store)
541                except:
542                    # Some error occured while initializing the layer
543                    self.RunMessageBox(_("Add Layer from database"),
544                                       _("Can't open the database table '%s'")
545                                       % dbtable)
546                    return
547    
548                map = self.canvas.Map()
549    
550                has_layers = map.HasLayers()
551                map.AddLayer(layer)
552                if not has_layers:
553                    self.canvas.FitMapToWindow()
554    
555          dlg.Destroy()          dlg.Destroy()
556    
557      def RemoveLayer(self):      def RemoveLayer(self):
# Line 529  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 561  class MainWindow(DockFrame): Line 629  class MainWindow(DockFrame):
629          return layer is not None and hasattr(layer, "ShapeStore")          return layer is not None and hasattr(layer, "ShapeStore")
630    
631      def LayerShowTable(self):      def LayerShowTable(self):
632            """
633            Present a TableView Window for the current layer.
634            In case the window is already open, bring it to the front.
635            In case, there is no active layer, do nothing.
636            In case, the layer has not ShapeStore, raise a corresponding message dialog
637            and do nothing else.
638            """
639          layer = self.current_layer()          layer = self.current_layer()
640          if layer is not None:          if layer is not None:
641                if not hasattr(layer, "ShapeStore"):
642                    self.RunMessageBox(_("Show Table"),
643                                       _("The layer '%s' has no table." % layer.Title()))
644                    return
645              table = layer.ShapeStore().Table()              table = layer.ShapeStore().Table()
646              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
647              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
# Line 573  class MainWindow(DockFrame): Line 652  class MainWindow(DockFrame):
652                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
653                  dialog.Show(True)                  dialog.Show(True)
654              else:              else:
655                  # FIXME: bring dialog to front here                  dialog.Raise()
                 pass  
656    
657      def MapProjection(self):      def MapProjection(self):
658    
# Line 664  class MainWindow(DockFrame): Line 742  class MainWindow(DockFrame):
742          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
743    
744      def TableOpen(self):      def TableOpen(self):
745          dlg = wxFileDialog(self, _("Open Table"), ".", "",          dlg = wxFileDialog(self, _("Open Table"),
746                               self.application.Path("data"), "",
747                             _("DBF Files (*.dbf)") + "|*.dbf|" +                             _("DBF Files (*.dbf)") + "|*.dbf|" +
748                             #_("CSV Files (*.csv)") + "|*.csv|" +                             #_("CSV Files (*.csv)") + "|*.csv|" +
749                             _("All Files (*.*)") + "|*.*",                             _("All Files (*.*)") + "|*.*",
# Line 680  class MainWindow(DockFrame): Line 759  class MainWindow(DockFrame):
759                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
760              else:              else:
761                  self.ShowTableView(table)                  self.ShowTableView(table)
762                    self.application.SetPath("data",filename)
763    
764      def TableClose(self):      def TableClose(self):
765          tables = self.application.session.UnreferencedTables()          tables = self.application.session.UnreferencedTables()
# Line 756  class MainWindow(DockFrame): Line 836  class MainWindow(DockFrame):
836    
837          # Second, let the user rename the layers          # Second, let the user rename the layers
838          for table in to_rename:          for table in to_rename:
839              dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",              dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
840                                      table.Title())                                      table.Title())
841              try:              try:
842                  if dlg.ShowModal() == wxID_OK:                  if dlg.ShowModal() == wxID_OK:
# Line 805  class MainWindow(DockFrame): Line 885  class MainWindow(DockFrame):
885          self.canvas.Print()          self.canvas.Print()
886    
887      def RenameMap(self):      def RenameMap(self):
888          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
889                                  self.Map().Title())                                  self.Map().Title())
890          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
891              title = dlg.GetValue()              title = dlg.GetValue()
892              if title != "":              if title != "":
893                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
894    
895          dlg.Destroy()          dlg.Destroy()
896    
# Line 819  class MainWindow(DockFrame): Line 898  class MainWindow(DockFrame):
898          """Let the user rename the currently selected layer"""          """Let the user rename the currently selected layer"""
899          layer = self.current_layer()          layer = self.current_layer()
900          if layer is not None:          if layer is not None:
901              dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",              dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
902                                      layer.Title())                                      layer.Title())
903              try:              try:
904                  if dlg.ShowModal() == wxID_OK:                  if dlg.ShowModal() == wxID_OK:
# Line 853  class MainWindow(DockFrame): Line 932  class MainWindow(DockFrame):
932                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
933                  pass                  pass
934    
935      def __SetTitle(self, title):      def title_changed(self, map):
936          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
937            self.update_title()
938    
939        def update_title(self):
940            """Update the window's title according to it's current state.
941    
942            In this default implementation the title is 'Thuban - ' followed
943            by the map's title or simply 'Thuban' if there is not map.
944            Derived classes should override this method to get different
945            titles.
946    
947            This method is called automatically by other methods when the
948            title may have to change. For the methods implemented in this
949            class this usually only means that a different map has been set
950            or the current map's title has changed.
951            """
952            map = self.Map()
953            if map is not None:
954                title = _("Thuban - %s") % (map.Title(),)
955            else:
956                title = _("Thuban")
957            self.SetTitle(title)
958    
959    
960  #  #
961  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 896  def _has_selected_layer(context): Line 997  def _has_selected_layer(context):
997      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
998      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
999    
1000    def _has_selected_shape_layer(context):
1001        """Return true if a shape layer is selected in the context"""
1002        return context.mainwindow.has_selected_shape_layer()
1003    
1004  def _has_selected_shapes(context):  def _has_selected_shapes(context):
1005      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
1006      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 926  def _has_gdal_support(context): Line 1031  def _has_gdal_support(context):
1031      """Return True if the GDAL is available"""      """Return True if the GDAL is available"""
1032      return Thuban.Model.resource.has_gdal_support()      return Thuban.Model.resource.has_gdal_support()
1033    
1034    def _has_dbconnections(context):
1035        """Return whether the the session has database connections"""
1036        return context.session.HasDBConnections()
1037    
1038    def _has_postgis_support(context):
1039        return has_postgis_support()
1040    
1041    
1042  # File menu  # File menu
1043  _method_command("new_session", _("&New Session"), "NewSession",  _method_command("new_session", _("&New Session"), "NewSession",
1044                  helptext = _("Start a new session"))                  helptext = _("Start a new session"))
# Line 941  _method_command("toggle_session_tree", _ Line 1054  _method_command("toggle_session_tree", _
1054  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1055                  checked = _has_legend_shown,                  checked = _has_legend_shown,
1056                  helptext = _("Toggle Legend on/off"))                  helptext = _("Toggle Legend on/off"))
1057    _method_command("database_management", _("&Database Connections..."),
1058                    "DatabaseManagement",
1059                    sensitive = _has_postgis_support)
1060  _method_command("exit", _("E&xit"), "Exit",  _method_command("exit", _("E&xit"), "Exit",
1061                  helptext = _("Finish working with Thuban"))                  helptext = _("Finish working with Thuban"))
1062    
# Line 990  _method_command("layer_add", _("&Add Lay Line 1106  _method_command("layer_add", _("&Add Lay
1106  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1107                  helptext = _("Add a new image layer to the map"),                  helptext = _("Add a new image layer to the map"),
1108                  sensitive = _has_gdal_support)                  sensitive = _has_gdal_support)
1109    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1110                    helptext = _("Add a new database layer to active map"),
1111                    sensitive = _has_dbconnections)
1112  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1113                  helptext = _("Remove selected layer"),                  helptext = _("Remove selected layer"),
1114                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
# Line 1018  _method_command("layer_hide", _("&Hide") Line 1137  _method_command("layer_hide", _("&Hide")
1137                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1138  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1139                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1140                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1141  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1142                  sensitive = _has_selected_layer,                  sensitive = _has_selected_layer,
1143                  helptext = _("Edit the properties of the selected layer"))                  helptext = _("Edit the properties of the selected layer"))
1144  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1145                  sensitive = _has_selected_layer,                  sensitive = _has_selected_shape_layer,
1146                  helptext = _("Join and attach a table to the selected layer"))                  helptext = _("Join and attach a table to the selected layer"))
1147    
1148  def _can_unjoin(context):  def _can_unjoin(context):
# Line 1065  _method_command("table_join", _("&Join.. Line 1184  _method_command("table_join", _("&Join..
1184                  helptext = _("Join two tables creating a new one"))                  helptext = _("Join two tables creating a new one"))
1185    
1186  #  Export only under Windows ...  #  Export only under Windows ...
1187  map_menu = ["layer_add", "rasterlayer_add", "layer_remove",  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1188                          None,                          None,
1189                          "map_rename",                          "map_rename",
1190                          "map_projection",                          "map_projection",
1191                          None,                          None,
1192                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1193                          "map_pan_tool",                          "map_pan_tool",
1194                          "map_full_extent",                          "map_full_extent",
1195                          "layer_full_extent",                          "layer_full_extent",
1196                          "selected_full_extent",                          "selected_full_extent",
1197                          None,                          None,
# Line 1089  main_menu = Menu("<main>", "<main>", Line 1208  main_menu = Menu("<main>", "<main>",
1208                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
1209                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
1210                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
1211                            "database_management", None,
1212                          "toggle_session_tree", None,                          "toggle_session_tree", None,
1213                          "exit"]),                          "exit"]),
1214                    Menu("map", _("&Map"), map_menu),                    Menu("map", _("&Map"), map_menu),
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