/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 31 by bh, Thu Sep 6 13:32:39 2001 UTC revision 185 by bh, Thu May 23 15:37:39 2002 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001 by Intevation GmbH  # Copyright (C) 2001, 2002 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 17  import sys, os Line 17  import sys, os
17  from wxPython.wx import *  from wxPython.wx import *
18    
19  import Thuban  import Thuban
20  from Thuban.Model.session import Session  from Thuban.Model.session import Session, create_empty_session
21  from Thuban.Model.map import Map  from Thuban.Model.map import Map
22  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer
23  from Thuban.Model.color import Color  from Thuban.Model.color import Color
# Line 30  import tableview, identifyview Line 30  import tableview, identifyview
30    
31  import main  import main
32  from command import registry, Command  from command import registry, Command
33  from messages import SELECTED_SHAPE  from messages import SELECTED_SHAPE, VIEW_POSITION
34    
35    
36  # the directory where the toolbar icons are stored  # the directory where the toolbar icons are stored
# Line 44  class MainWindow(wxFrame): Line 44  class MainWindow(wxFrame):
44          wxFrame.__init__(self, parent, ID, 'Thuban',          wxFrame.__init__(self, parent, ID, 'Thuban',
45                           wxDefaultPosition, wxSize(400, 300))                           wxDefaultPosition, wxSize(400, 300))
46    
47            self.interactor = interactor
48    
49          self.CreateStatusBar()          self.CreateStatusBar()
50          self.SetStatusText("This is the wxPython-based "          self.SetStatusText("This is the wxPython-based "
51                        "Graphical User Interface for exploring geographic data")                        "Graphical User Interface for exploring geographic data")
# Line 58  class MainWindow(wxFrame): Line 60  class MainWindow(wxFrame):
60          menuBar.Append(menu, "&File");          menuBar.Append(menu, "&File");
61          for name in ["new_session", "open_session", None,          for name in ["new_session", "open_session", None,
62                       "save_session", "save_session_as", None,                       "save_session", "save_session_as", None,
63                         "show_session_tree", None,
64                       "exit"]:                       "exit"]:
65              self.add_menu_command(menu, name)              self.add_menu_command(menu, name)
66    
67          menu = wxMenu()          menu = wxMenu()
68          menuBar.Append(menu, "&Map");          menuBar.Append(menu, "&Map");
69          for name in ["map_projection",          for name in ["layer_add", "layer_remove",
70                         None,
71                         "map_projection",
72                       None,                       None,
73                       "map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                       "map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
74                       "map_identify_tool", "map_label_tool",                       "map_identify_tool", "map_label_tool",
# Line 75  class MainWindow(wxFrame): Line 80  class MainWindow(wxFrame):
80    
81          menu = wxMenu()          menu = wxMenu()
82          menuBar.Append(menu, "&Layer");          menuBar.Append(menu, "&Layer");
83          for name in ["layer_add", "layer_remove",          for name in ["layer_fill_color", "layer_transparent_fill",
84                       None,                       "layer_outline_color", "layer_no_outline",
                      "layer_fill_color", "layer_transparent_fill",  
                      "layer_ourline_color", "layer_no_outline",  
85                       None,                       None,
86                       "layer_raise", "layer_lower",                       "layer_raise", "layer_lower",
87                       None,                       None,
# Line 95  class MainWindow(wxFrame): Line 98  class MainWindow(wxFrame):
98    
99          # toolbar          # toolbar
100          toolbar = self.CreateToolBar(wxTB_3DBUTTONS)          toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
101    
102            # set the size of the tools' bitmaps. Not needed on wxGTK, but
103            # on Windows. We probably shouldn't hardwire the bitmap size
104            # here
105            toolbar.SetToolBitmapSize(wxSize(24, 24))
106    
107          for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",          for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
108                       "map_identify_tool", "map_label_tool"]:                       "map_identify_tool", "map_label_tool", "map_full_extent"]:
109              self.add_toolbar_command(toolbar, name)              self.add_toolbar_command(toolbar, name)
110          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
111          toolbar.Realize()          toolbar.Realize()
112    
113          # Create the map canvas          # Create the map canvas
114          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1, interactor)
115            canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
116          self.canvas = canvas          self.canvas = canvas
117    
118          self.init_dialogs()          self.init_dialogs()
# Line 187  class MainWindow(wxFrame): Line 197  class MainWindow(wxFrame):
197                  event.Check(command.Checked(self))                  event.Check(command.Checked(self))
198    
199      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
200          """Run a modla message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
201          and return the result"""          and return the result"""
202          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
203          result = dlg.ShowModal()          result = dlg.ShowModal()
# Line 215  class MainWindow(wxFrame): Line 225  class MainWindow(wxFrame):
225      def get_open_dialog(self, name):      def get_open_dialog(self, name):
226          return self.dialogs.get(name)          return self.dialogs.get(name)
227    
228        def view_position_changed(self):
229            pos = self.canvas.CurrentPosition()
230            if pos is not None:
231                text = "(%10.10g, %10.10g)" % pos
232            else:
233                text = ""
234            self.SetStatusText(text)
235    
236        def save_modified_session(self, can_veto = 1):
237            """If the current session has been modified, ask the user
238            whether to save it and do so if requested. Return the outcome of
239            the dialog (either wxID_OK, wxID_CANCEL or wxID_NO). If the
240            dialog wasn't run return wxID_NO.
241    
242            If the can_veto parameter is true (default) the dialog includes
243            a cancel button, otherwise not.
244            """
245            if main.app.session.WasModified():
246                flags = wxYES_NO | wxICON_QUESTION
247                if can_veto:
248                    flags = flags | wxCANCEL
249                result = self.RunMessageBox("Exit",
250                                            ("The session has been modified."
251                                             " Do you want to save it?"),
252                                            flags)
253                if result == wxID_YES:
254                    self.SaveSession()
255            else:
256                result = wxID_NO
257            return result
258    
259      def NewSession(self):      def NewSession(self):
260          session = Session("")          self.save_modified_session()
261          session.AddMap(Map(""))          main.app.SetSession(create_empty_session())
         main.app.SetSession(session)  
262    
263      def OpenSession(self):      def OpenSession(self):
264            self.save_modified_session()
265          dlg = wxFileDialog(self, "Select a session file", ".", "",          dlg = wxFileDialog(self, "Select a session file", ".", "",
266                             "*.session", wxOPEN)                             "*.thuban", wxOPEN)
267          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
268              main.app.OpenSession(dlg.GetPath())              main.app.OpenSession(dlg.GetPath())
269          dlg.Destroy()          dlg.Destroy()
270    
271      def SaveSession(self):      def SaveSession(self):
272            if main.app.session.filename == None:
273                self.SaveSessionAs()
274          main.app.SaveSession()          main.app.SaveSession()
275    
276      def SaveSessionAs(self):      def SaveSessionAs(self):
277          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",
278                             "*.session", wxOPEN)                             "*.thuban", wxOPEN)
279          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
280              main.app.session.SetFilename(dlg.GetPath())              main.app.session.SetFilename(dlg.GetPath())
281              main.app.SaveSession()              main.app.SaveSession()
# Line 242  class MainWindow(wxFrame): Line 285  class MainWindow(wxFrame):
285          self.Close(false)          self.Close(false)
286    
287      def OnClose(self, event):      def OnClose(self, event):
288          veto = 0          result = self.save_modified_session(can_veto = event.CanVeto())
289          if main.app.session.WasModified():          if result == wxID_CANCEL:
             flags = wxYES_NO | wxICON_QUESTION  
             if event.CanVeto():  
                 flags = flags | wxCANCEL  
             result = self.RunMessageBox("Exit",  
                                         ("The session has been modified."  
                                          " Do you want to save it?"),  
                                         flags)  
             if result == wxID_YES:  
                 self.SaveSession()  
             elif result == wxID_CANCEL:  
                 veto = 1  
   
         if veto:  
290              event.Veto()              event.Veto()
291          else:          else:
292              self.Destroy()              self.Destroy()
# Line 264  class MainWindow(wxFrame): Line 294  class MainWindow(wxFrame):
294      def SetMap(self, map):      def SetMap(self, map):
295          self.canvas.SetMap(map)          self.canvas.SetMap(map)
296    
297        def ShowSessionTree(self):
298            name = "session_tree"
299            dialog = self.get_open_dialog(name)
300            if dialog is None:
301                dialog = tree.SessionTreeView(self, main.app, name)
302                self.add_dialog(name, dialog)
303                dialog.Show(true)
304            else:
305                # FIXME: bring dialog to front here
306                pass
307    
308      def About(self):      def About(self):
309          self.RunMessageBox("About",          self.RunMessageBox("About",
310                             ("Thuban is a program for\n"                             ("Thuban is a program for\n"
# Line 273  class MainWindow(wxFrame): Line 314  class MainWindow(wxFrame):
314                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
315    
316      def AddLayer(self):      def AddLayer(self):
317          dlg = wxFileDialog(self, "Select a session file", ".", "", "*.*",          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",
318                             wxOPEN)                             wxOPEN)
319          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
320              filename = dlg.GetPath()              filename = dlg.GetPath()
# Line 314  class MainWindow(wxFrame): Line 355  class MainWindow(wxFrame):
355    
356          If no layer is selected, return None          If no layer is selected, return None
357          """          """
358          tree = main.app.tree.tree          return self.interactor.SelectedLayer()
         layer = tree.GetPyData(tree.GetSelection())  
         if isinstance(layer, Layer):  
             return layer  
         return None  
359    
360      def has_selected_layer(self):      def has_selected_layer(self):
361          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
362          tree = main.app.tree.tree          return self.interactor.HasSelectedLayer()
         layer = tree.GetPyData(tree.GetSelection())  
         return isinstance(layer, Layer)  
363    
364      def choose_color(self):      def choose_color(self):
365          """Run the color selection dialog and return the selected color.          """Run the color selection dialog and return the selected color.
# Line 383  class MainWindow(wxFrame): Line 418  class MainWindow(wxFrame):
418              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
419              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
420              if dialog is None:              if dialog is None:
421                  dialog = tableview.TableFrame(self, main.app.interactor, name,                  dialog = tableview.TableFrame(self, self.interactor, name,
422                                                "Table: %s" % layer.Title(),                                                "Table: %s" % layer.Title(),
423                                                table)                                                layer, table)
424                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
425                  dialog.Show(true)                  dialog.Show(true)
426              else:              else:
# Line 396  class MainWindow(wxFrame): Line 431  class MainWindow(wxFrame):
431          map = self.canvas.Map()          map = self.canvas.Map()
432          proj = map.projection          proj = map.projection
433          if proj is None:          if proj is None:
434              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None)              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())
435          else:          else:
436              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params)              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,
437                                                   map.BoundingBox())
438          if proj4Dlg.ShowModal() == wxID_OK:          if proj4Dlg.ShowModal() == wxID_OK:
439              params = proj4Dlg.GetParams()              params = proj4Dlg.GetParams()
440              if params is not None:              if params is not None:
# Line 419  class MainWindow(wxFrame): Line 455  class MainWindow(wxFrame):
455    
456      def IdentifyTool(self):      def IdentifyTool(self):
457          self.canvas.IdentifyTool()          self.canvas.IdentifyTool()
458            self.identify_view_on_demand(None, None)
459    
460      def LabelTool(self):      def LabelTool(self):
461          self.canvas.LabelTool()          self.canvas.LabelTool()
# Line 433  class MainWindow(wxFrame): Line 470  class MainWindow(wxFrame):
470          name = "identify_view"          name = "identify_view"
471          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
472              if not self.dialog_open(name):              if not self.dialog_open(name):
473                  dialog = identifyview.IdentifyView(self, main.app.interactor,                  dialog = identifyview.IdentifyView(self, self.interactor, name)
                                                    name)  
474                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
475                  dialog.Show(true)                  dialog.Show(true)
476              else:              else:
477                  # FIXME: bring dialog to from?                  # FIXME: bring dialog to front?
478                  pass                  pass
479    
480  #  #
# Line 451  def call_method(context, methodname, *ar Line 487  def call_method(context, methodname, *ar
487      """Call the context's method methodname with args *args"""      """Call the context's method methodname with args *args"""
488      apply(getattr(context, methodname), args)      apply(getattr(context, methodname), args)
489    
490  def _method_command(name, title, method, helptext = "", sensitive = None):  def _method_command(name, title, method, helptext = "",
491                        icon = "", sensitive = None):
492      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the context object"""
493      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
494                           helptext = helptext, sensitive = sensitive))                           helptext = helptext, icon = icon,
495                             sensitive = sensitive))
496    
497  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
498                    icon = ""):                    icon = ""):
499      """Add a tool command"""      """Add a tool command"""
# Line 473  _method_command("new_session", "&New Ses Line 512  _method_command("new_session", "&New Ses
512  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", "&Open Session", "OpenSession")
513  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", "&Save Session", "SaveSession")
514  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")
515    _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")
516  _method_command("exit", "&Exit", "Exit")  _method_command("exit", "&Exit", "Exit")
517    
518  # Help menu  # Help menu
# Line 492  _tool_command("map_identify_tool", "&Ide Line 532  _tool_command("map_identify_tool", "&Ide
532                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = "Switch to map-mode 'identify'", icon = "identify")
533  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",
534                helptext = "Add/Remove labels", icon = "label")                helptext = "Add/Remove labels", icon = "label")
535  _method_command("map_full_extent", "&Full extent", "FullExtent")  _method_command("map_full_extent", "&Full extent", "FullExtent",
536                   helptext = "Full Extent", icon = "fullextent")
537  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")
538    
539  # Layer menu  # Layer menu
540  _method_command("layer_add", "&Add", "AddLayer",  _method_command("layer_add", "&Add Layer", "AddLayer",
541                  helptext = "Add a new layer to active map")                  helptext = "Add a new layer to active map")
542  _method_command("layer_remove", "&Remove", "RemoveLayer",  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",
543                  helptext = "Remove selected layer(s)",                  helptext = "Remove selected layer(s)",
544                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
545  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",
# Line 508  _method_command("layer_transparent_fill" Line 549  _method_command("layer_transparent_fill"
549                  "LayerTransparentFill",                  "LayerTransparentFill",
550                  helptext = "Do not fill the selected layer(s)",                  helptext = "Do not fill the selected layer(s)",
551                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
552  _method_command("layer_ourline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",
553                  helptext = "Set the outline color of selected layer(s)",                  helptext = "Set the outline color of selected layer(s)",
554                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
555  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",
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