/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1287 by jonathan, Mon Jun 23 10:47:11 2003 UTC revision 1995 by bh, Mon Dec 1 16:09:10 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, 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 43  from menu import Menu Line 41  from menu import Menu
41    
42  from context import Context  from context import Context
43  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
44  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
45         MAP_REPLACED
46    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    
54  import projdialog  import projdialog
55    
56    
57  class MainWindow(DockFrame):  class MainWindow(DockFrame):
58    
59      # Some messages that can be subscribed/unsubscribed directly through      # Some messages that can be subscribed/unsubscribed directly through
# Line 61  class MainWindow(DockFrame): Line 62  class MainWindow(DockFrame):
62      # actually come from. This delegation is implemented in the      # actually come from. This delegation is implemented in the
63      # Subscribe and unsubscribed methods      # Subscribe and unsubscribed methods
64      delegated_messages = {LAYER_SELECTED: "canvas",      delegated_messages = {LAYER_SELECTED: "canvas",
65                            SHAPES_SELECTED: "canvas"}                            SHAPES_SELECTED: "canvas",
66                              MAP_REPLACED: "canvas"}
67    
68      # Methods delegated to some instance variables. The delegation is      # Methods delegated to some instance variables. The delegation is
69      # implemented in the __getattr__ method.      # implemented in the __getattr__ method.
# Line 100  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 362  class MainWindow(DockFrame): Line 365  class MainWindow(DockFrame):
365              result = wxID_NO              result = wxID_NO
366          return result          return result
367    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
368      def NewSession(self):      def NewSession(self):
369          if self.save_modified_session() != wxID_CANCEL:          if self.save_modified_session() != wxID_CANCEL:
             self.prepare_new_session()  
370              self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
371    
372      def OpenSession(self):      def OpenSession(self):
# Line 378  class MainWindow(DockFrame): Line 375  class MainWindow(DockFrame):
375                                 "Thuban Session File (*.thuban)|*.thuban",                                 "Thuban Session File (*.thuban)|*.thuban",
376                                 wxOPEN)                                 wxOPEN)
377              if dlg.ShowModal() == wxID_OK:              if dlg.ShowModal() == wxID_OK:
378                  self.prepare_new_session()                  self.application.OpenSession(dlg.GetPath(),
379                  self.application.OpenSession(dlg.GetPath())                                               self.run_db_param_dialog)
380              dlg.Destroy()              dlg.Destroy()
381    
382        def run_db_param_dialog(self, parameters, message):
383            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
384                           message)
385            return dlg.RunDialog()
386    
387      def SaveSession(self):      def SaveSession(self):
388          if self.application.session.filename == None:          if self.application.session.filename == None:
389              self.SaveSessionAs()              self.SaveSessionAs()
# Line 417  class MainWindow(DockFrame): Line 419  class MainWindow(DockFrame):
419    
420      def SetMap(self, map):      def SetMap(self, map):
421          self.canvas.SetMap(map)          self.canvas.SetMap(map)
422          self.__SetTitle(map.Title())          self.update_title()
423    
424          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
425          if dialog is not None:          if dialog is not None:
# Line 444  class MainWindow(DockFrame): Line 446  class MainWindow(DockFrame):
446          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
447    
448      def About(self):      def About(self):
449          self.RunMessageBox(_("About"),          dlg = About(self)
450                             _("Thuban %s\n\n"          dlg.ShowModal()
451                              #"Build Date: %s\n"          dlg.Destroy()
452                              "Currently using:\n"  
453                              "  %s\n"      def DatabaseManagement(self):
454                              "  %s\n\n"          name = "dbmanagement"
455                              "Thuban is a program for\n"          dialog = self.get_open_dialog(name)
456                              "exploring geographic data.\n"          if dialog is None:
457                              "Copyright (C) 2001-2003 Intevation GmbH.\n"              map = self.canvas.Map()
458                              "Thuban is licensed under the GNU GPL"              dialog = DBFrame(self, name, self.application.Session())
459                              % (Thuban.version.longversion,              self.add_dialog(name, dialog)
460                                 "wxPython %s" % wxPython_version,              dialog.Show()
461                                 "Python %d.%d.%d" % sys.version_info[:3]          dialog.Raise()
                               )),  
 #                           % __ThubanVersion__), #__BuildDate__)),  
                            wxOK | wxICON_INFORMATION)  
462    
463      def AddLayer(self):      def AddLayer(self):
464          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
465                             wxOPEN)                             _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
466                               _("All Files (*.*)") + "|*.*",
467                               wxOPEN | wxMULTIPLE)
468          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
469              filename = dlg.GetPath()              filenames = dlg.GetPaths()
470              title = os.path.splitext(os.path.basename(filename))[0]              for filename in filenames:
471              map = self.canvas.Map()                  title = os.path.splitext(os.path.basename(filename))[0]
472              has_layers = map.HasLayers()                  map = self.canvas.Map()
473              try:                  has_layers = map.HasLayers()
474                  store = self.application.Session().OpenShapefile(filename)                  try:
475              except IOError:                      store = self.application.Session().OpenShapefile(filename)
476                  # the layer couldn't be opened                  except IOError:
477                  self.RunMessageBox(_("Add Layer"),                      # the layer couldn't be opened
478                                     _("Can't open the file '%s'.") % filename)                      self.RunMessageBox(_("Add Layer"),
479              else:                                         _("Can't open the file '%s'.")%filename)
480                  layer = Layer(title, store)                  else:
481                  map.AddLayer(layer)                      layer = Layer(title, store)
482                  if not has_layers:                      map.AddLayer(layer)
483                      # if we're adding a layer to an empty map, fit the                      if not has_layers:
484                      # new map to the window                          # if we're adding a layer to an empty map, fit the
485                      self.canvas.FitMapToWindow()                          # new map to the window
486                            self.canvas.FitMapToWindow()
487          dlg.Destroy()          dlg.Destroy()
488    
489      def AddRasterLayer(self):      def AddRasterLayer(self):
# Line 506  class MainWindow(DockFrame): Line 508  class MainWindow(DockFrame):
508                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
509          dlg.Destroy()          dlg.Destroy()
510    
511        def AddDBLayer(self):
512            """Add a layer read from a database"""
513            session = self.application.Session()
514            dlg = ChooseDBTableDialog(self, self.application.Session())
515    
516            if dlg.ShowModal() == wxID_OK:
517                dbconn, dbtable = dlg.GetTable()
518                try:
519                    title = str(dbtable)
520    
521                    # Chose the correct Interface for the database type
522                    store = PostGISShapeStore(dbconn, dbtable)
523                    session.AddShapeStore(store)
524                    layer = Layer(title, store)
525                except:
526                    # Some error occured while initializing the layer
527                    self.RunMessageBox(_("Add Layer from database"),
528                                       _("Can't open the database table '%s'")
529                                       % dbtable)
530    
531                map = self.canvas.Map()
532    
533                has_layers = map.HasLayers()
534                map.AddLayer(layer)
535                if not has_layers:
536                    self.canvas.FitMapToWindow()
537    
538            dlg.Destroy()
539    
540      def RemoveLayer(self):      def RemoveLayer(self):
541          layer = self.current_layer()          layer = self.current_layer()
542          if layer is not None:          if layer is not None:
# Line 674  class MainWindow(DockFrame): Line 705  class MainWindow(DockFrame):
705          else:          else:
706              dialog.Show(not dialog.IsShown())              dialog.Show(not dialog.IsShown())
707    
         self.canvas.FitMapToWindow()  
   
708      def LegendShown(self):      def LegendShown(self):
709          """Return true iff the legend is currently open"""          """Return true iff the legend is currently open"""
710          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
# Line 751  class MainWindow(DockFrame): Line 780  class MainWindow(DockFrame):
780                                                 table)                                                 table)
781              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
782              dialog.Show(True)              dialog.Show(True)
783          # FIXME: else bring dialog to front          dialog.Raise()
784    
785      def TableRename(self):      def TableRename(self):
786          """Let the user rename a table"""          """Let the user rename a table"""
# Line 829  class MainWindow(DockFrame): Line 858  class MainWindow(DockFrame):
858              title = dlg.GetValue()              title = dlg.GetValue()
859              if title != "":              if title != "":
860                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
861    
862          dlg.Destroy()          dlg.Destroy()
863    
# Line 871  class MainWindow(DockFrame): Line 899  class MainWindow(DockFrame):
899                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
900                  pass                  pass
901    
902      def __SetTitle(self, title):      def title_changed(self, map):
903          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
904            self.update_title()
905    
906        def update_title(self):
907            """Update the window's title according to it's current state.
908    
909            In this default implementation the title is 'Thuban - ' followed
910            by the map's title or simply 'Thuban' if there is not map.
911            Derived classes should override this method to get different
912            titles.
913    
914            This method is called automatically by other methods when the
915            title may have to change. For the methods implemented in this
916            class this usually only means that a different map has been set
917            or the current map's title has changed.
918            """
919            map = self.Map()
920            if map is not None:
921                title = _("Thuban - %s") % (map.Title(),)
922            else:
923                title = _("Thuban")
924            self.SetTitle(title)
925    
926    
927  #  #
928  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 944  def _has_gdal_support(context): Line 994  def _has_gdal_support(context):
994      """Return True if the GDAL is available"""      """Return True if the GDAL is available"""
995      return Thuban.Model.resource.has_gdal_support()      return Thuban.Model.resource.has_gdal_support()
996    
997    def _has_dbconnections(context):
998        """Return whether the the session has database connections"""
999        return context.session.HasDBConnections()
1000    
1001    def _has_postgis_support(context):
1002        return has_postgis_support()
1003    
1004    
1005  # File menu  # File menu
1006  _method_command("new_session", _("&New Session"), "NewSession",  _method_command("new_session", _("&New Session"), "NewSession",
1007                  helptext = _("Start a new session"))                  helptext = _("Start a new session"))
# Line 959  _method_command("toggle_session_tree", _ Line 1017  _method_command("toggle_session_tree", _
1017  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1018                  checked = _has_legend_shown,                  checked = _has_legend_shown,
1019                  helptext = _("Toggle Legend on/off"))                  helptext = _("Toggle Legend on/off"))
1020    _method_command("database_management", _("&Database Connections..."),
1021                    "DatabaseManagement",
1022                    sensitive = _has_postgis_support)
1023  _method_command("exit", _("E&xit"), "Exit",  _method_command("exit", _("E&xit"), "Exit",
1024                  helptext = _("Finish working with Thuban"))                  helptext = _("Finish working with Thuban"))
1025    
# Line 1008  _method_command("layer_add", _("&Add Lay Line 1069  _method_command("layer_add", _("&Add Lay
1069  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1070                  helptext = _("Add a new image layer to the map"),                  helptext = _("Add a new image layer to the map"),
1071                  sensitive = _has_gdal_support)                  sensitive = _has_gdal_support)
1072    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1073                    helptext = _("Add a new database layer to active map"),
1074                    sensitive = _has_dbconnections)
1075  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1076                  helptext = _("Remove selected layer"),                  helptext = _("Remove selected layer"),
1077                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
# Line 1083  _method_command("table_join", _("&Join.. Line 1147  _method_command("table_join", _("&Join..
1147                  helptext = _("Join two tables creating a new one"))                  helptext = _("Join two tables creating a new one"))
1148    
1149  #  Export only under Windows ...  #  Export only under Windows ...
1150  map_menu = ["layer_add", "rasterlayer_add", "layer_remove",  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1151                          None,                          None,
1152                          "map_rename",                          "map_rename",
1153                          "map_projection",                          "map_projection",
1154                          None,                          None,
1155                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1156                          "map_pan_tool",                          "map_pan_tool",
1157                          "map_full_extent",                          "map_full_extent",
1158                          "layer_full_extent",                          "layer_full_extent",
1159                          "selected_full_extent",                          "selected_full_extent",
1160                          None,                          None,
# Line 1107  main_menu = Menu("<main>", "<main>", Line 1171  main_menu = Menu("<main>", "<main>",
1171                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
1172                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
1173                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
1174                            "database_management", None,
1175                          "toggle_session_tree", None,                          "toggle_session_tree", None,
1176                          "exit"]),                          "exit"]),
1177                    Menu("map", _("&Map"), map_menu),                    Menu("map", _("&Map"), map_menu),
# Line 1142  main_toolbar = Menu("<toolbar>", "<toolb Line 1207  main_toolbar = Menu("<toolbar>", "<toolb
1207                       "selected_full_extent",                       "selected_full_extent",
1208                       None,                       None,
1209                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1210    
Legend:
Removed from v.1287  
changed lines
  Added in v.1995
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