/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1219 by bh, Mon Jun 16 17:42:54 2003 UTC revision 1648 by bh, Mon Aug 25 13:55:35 2003 UTC
# Line 12  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16  __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"  # $Id$
 #__BuildDate__ = "$Date$"  
17    
18  import os  import os
19  import copy  import copy
# Line 28  import Thuban.version Line 27  import Thuban.version
27  from Thuban import _  from Thuban import _
28  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
29  from Thuban.Model.layer import Layer, RasterLayer  from Thuban.Model.layer import Layer, RasterLayer
30    from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
31  # XXX: replace this by  # XXX: replace this by
32  # from wxPython.lib.dialogs import wxMultipleChoiceDialog  # from wxPython.lib.dialogs import wxMultipleChoiceDialog
33  # 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 42  from menu import Menu
42    
43  from context import Context  from context import Context
44  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
45  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
46         MAP_REPLACED
47    from about import About
48    
49  from Thuban.UI.dock import DockFrame  from Thuban.UI.dock import DockFrame
50  from Thuban.UI.join import JoinDialog  from Thuban.UI.join import JoinDialog
51    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
52  import resource  import resource
53  import Thuban.Model.resource  import Thuban.Model.resource
54    
55  import projdialog  import projdialog
56    
57    
58  class MainWindow(DockFrame):  class MainWindow(DockFrame):
59    
60      # Some messages that can be subscribed/unsubscribed directly through      # Some messages that can be subscribed/unsubscribed directly through
# Line 61  class MainWindow(DockFrame): Line 63  class MainWindow(DockFrame):
63      # actually come from. This delegation is implemented in the      # actually come from. This delegation is implemented in the
64      # Subscribe and unsubscribed methods      # Subscribe and unsubscribed methods
65      delegated_messages = {LAYER_SELECTED: "canvas",      delegated_messages = {LAYER_SELECTED: "canvas",
66                            SHAPES_SELECTED: "canvas"}                            SHAPES_SELECTED: "canvas",
67                              MAP_REPLACED: "canvas"}
68    
69      # Methods delegated to some instance variables. The delegation is      # Methods delegated to some instance variables. The delegation is
70      # implemented in the __getattr__ method.      # implemented in the __getattr__ method.
# Line 107  class MainWindow(DockFrame): Line 110  class MainWindow(DockFrame):
110    
111          self.init_dialogs()          self.init_dialogs()
112    
113            self.ShowLegend()
114    
115          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
116    
117      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
# Line 360  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 376  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 442  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"          dlg.ShowModal()
451                              #"Build Date: %s\n"          dlg.Destroy()
452                              "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|" +
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 504  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.application.Session(), self,-1, "")
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 672  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 749  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 942  def _has_gdal_support(context): Line 973  def _has_gdal_support(context):
973      """Return True if the GDAL is available"""      """Return True if the GDAL is available"""
974      return Thuban.Model.resource.has_gdal_support()      return Thuban.Model.resource.has_gdal_support()
975    
976    def _has_dbconnections(context):
977        """Return whether the the session has database connections"""
978        return context.session.HasDBConnections()
979    
980    def _has_postgis_support(context):
981        return has_postgis_support()
982    
983    
984  # File menu  # File menu
985  _method_command("new_session", _("&New Session"), "NewSession",  _method_command("new_session", _("&New Session"), "NewSession",
986                  helptext = _("Start a new session"))                  helptext = _("Start a new session"))
# Line 957  _method_command("toggle_session_tree", _ Line 996  _method_command("toggle_session_tree", _
996  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
997                  checked = _has_legend_shown,                  checked = _has_legend_shown,
998                  helptext = _("Toggle Legend on/off"))                  helptext = _("Toggle Legend on/off"))
999    _method_command("database_management", _("&Database Connections..."),
1000                    "DatabaseManagement",
1001                    sensitive = _has_postgis_support)
1002  _method_command("exit", _("E&xit"), "Exit",  _method_command("exit", _("E&xit"), "Exit",
1003                  helptext = _("Finish working with Thuban"))                  helptext = _("Finish working with Thuban"))
1004    
# Line 1006  _method_command("layer_add", _("&Add Lay Line 1048  _method_command("layer_add", _("&Add Lay
1048  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1049                  helptext = _("Add a new image layer to the map"),                  helptext = _("Add a new image layer to the map"),
1050                  sensitive = _has_gdal_support)                  sensitive = _has_gdal_support)
1051    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1052                    helptext = _("Add a new database layer to active map"),
1053                    sensitive = _has_dbconnections)
1054  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1055                  helptext = _("Remove selected layer"),                  helptext = _("Remove selected layer"),
1056                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
# Line 1081  _method_command("table_join", _("&Join.. Line 1126  _method_command("table_join", _("&Join..
1126                  helptext = _("Join two tables creating a new one"))                  helptext = _("Join two tables creating a new one"))
1127    
1128  #  Export only under Windows ...  #  Export only under Windows ...
1129  map_menu = ["layer_add", "rasterlayer_add", "layer_remove",  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1130                          None,                          None,
1131                          "map_rename",                          "map_rename",
1132                          "map_projection",                          "map_projection",
1133                          None,                          None,
1134                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1135                          "map_pan_tool",                          "map_pan_tool",
1136                          "map_full_extent",                          "map_full_extent",
1137                          "layer_full_extent",                          "layer_full_extent",
1138                          "selected_full_extent",                          "selected_full_extent",
1139                          None,                          None,
# Line 1105  main_menu = Menu("<main>", "<main>", Line 1150  main_menu = Menu("<main>", "<main>",
1150                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
1151                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
1152                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
1153                            "database_management", None,
1154                          "toggle_session_tree", None,                          "toggle_session_tree", None,
1155                          "exit"]),                          "exit"]),
1156                    Menu("map", _("&Map"), map_menu),                    Menu("map", _("&Map"), map_menu),
# Line 1140  main_toolbar = Menu("<toolbar>", "<toolb Line 1186  main_toolbar = Menu("<toolbar>", "<toolb
1186                       "selected_full_extent",                       "selected_full_extent",
1187                       None,                       None,
1188                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1189    
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