/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 191 by bh, Tue May 28 16:04:49 2002 UTC revision 238 by bh, Wed Jul 24 10:19:46 2002 UTC
# Line 28  import proj4dialog Line 28  import proj4dialog
28  import tableview, identifyview  import tableview, identifyview
29  from menu import Menu  from menu import Menu
30    
31  import main  from context import Context
32  from command import registry, Command  from command import registry, Command
33  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import SELECTED_SHAPE, VIEW_POSITION
34    
# Line 40  bitmapext = ".xpm" Line 40  bitmapext = ".xpm"
40    
41  class MainWindow(wxFrame):  class MainWindow(wxFrame):
42    
43      def __init__(self, parent, ID, interactor):      def __init__(self, parent, ID, title, application, interactor,
44          wxFrame.__init__(self, parent, ID, 'Thuban',                   initial_message = None, size = wxSize(-1, -1)):
45                           wxDefaultPosition, wxSize(400, 300))          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
46    
47            self.application = application
48          self.interactor = interactor          self.interactor = interactor
49    
50          self.CreateStatusBar()          self.CreateStatusBar()
51          self.SetStatusText("This is the wxPython-based "          if initial_message:
52                        "Graphical User Interface for exploring geographic data")              self.SetStatusText(initial_message)
53    
54          self.identify_view = None          self.identify_view = None
55    
# Line 78  class MainWindow(wxFrame): Line 79  class MainWindow(wxFrame):
79          self.current_id = 6000          self.current_id = 6000
80          self.id_to_name = {}          self.id_to_name = {}
81          self.name_to_id = {}          self.name_to_id = {}
82            self.events_bound = {}
83    
84      def get_id(self, name):      def get_id(self, name):
85          """Return the wxWindows id for the command named name.          """Return the wxWindows id for the command named name.
# Line 91  class MainWindow(wxFrame): Line 93  class MainWindow(wxFrame):
93              self.id_to_name[ID] = name              self.id_to_name[ID] = name
94          return ID          return ID
95    
96        def bind_command_events(self, command, ID):
97            """Bind the necessary events for the given command and ID"""
98            if not self.events_bound.has_key(ID):
99                # the events haven't been bound yet
100                EVT_MENU(self, ID, self.invoke_command)
101                if command.IsDynamic():
102                    EVT_UPDATE_UI(self, ID, self.update_command_ui)
103    
104      def build_menu_bar(self, menudesc):      def build_menu_bar(self, menudesc):
105          """Build and return the menu bar from the menu description"""          """Build and return the menu bar from the menu description"""
106          menu_bar = wxMenuBar()          menu_bar = wxMenuBar()
# Line 157  class MainWindow(wxFrame): Line 167  class MainWindow(wxFrame):
167                  ID = self.get_id(name)                  ID = self.get_id(name)
168                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
169                              command.IsCheckCommand())                              command.IsCheckCommand())
170                  EVT_MENU(self, ID, self.invoke_command)                  self.bind_command_events(command, ID)
                 if command.IsDynamic():  
                     EVT_UPDATE_UI(self, ID, self.update_command_ui)  
171              else:              else:
172                  print "Unknown command %s" % name                  print "Unknown command %s" % name
173    
# Line 181  class MainWindow(wxFrame): Line 189  class MainWindow(wxFrame):
189                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
190                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
191                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
192                    self.bind_command_events(command, ID)
193              else:              else:
194                  print "Unknown command %s" % name                  print "Unknown command %s" % name
195    
# Line 188  class MainWindow(wxFrame): Line 197  class MainWindow(wxFrame):
197          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
198          if name is not None:          if name is not None:
199              command = registry.Command(name)              command = registry.Command(name)
200              command.Execute(self)              context = Context(self.application, self.application.Session(),
201                                  self)
202                command.Execute(context)
203          else:          else:
204              print "Unknown command ID %d" % event.GetId()              print "Unknown command ID %d" % event.GetId()
205    
206      def update_command_ui(self, event):      def update_command_ui(self, event):
207          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
208            context = Context(self.application, self.application.Session(), self)
209          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
210          if command is not None:          if command is not None:
211              event.Enable(command.Sensitive(self))              event.Enable(command.Sensitive(context))
212              event.SetText(command.DynText(self))              event.SetText(command.DynText(context))
213              if command.IsCheckCommand():              if command.IsCheckCommand():
214                  event.Check(command.Checked(self))                  event.Check(command.Checked(context))
215    
216      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
217          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
# Line 247  class MainWindow(wxFrame): Line 259  class MainWindow(wxFrame):
259          If the can_veto parameter is true (default) the dialog includes          If the can_veto parameter is true (default) the dialog includes
260          a cancel button, otherwise not.          a cancel button, otherwise not.
261          """          """
262          if main.app.session.WasModified():          if self.application.session.WasModified():
263              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
264              if can_veto:              if can_veto:
265                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
# Line 263  class MainWindow(wxFrame): Line 275  class MainWindow(wxFrame):
275    
276      def NewSession(self):      def NewSession(self):
277          self.save_modified_session()          self.save_modified_session()
278          main.app.SetSession(create_empty_session())          self.application.SetSession(create_empty_session())
279    
280      def OpenSession(self):      def OpenSession(self):
281          self.save_modified_session()          self.save_modified_session()
282          dlg = wxFileDialog(self, "Select a session file", ".", "",          dlg = wxFileDialog(self, "Select a session file", ".", "",
283                             "*.thuban", wxOPEN)                             "*.thuban", wxOPEN)
284          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
285              main.app.OpenSession(dlg.GetPath())              self.application.OpenSession(dlg.GetPath())
286          dlg.Destroy()          dlg.Destroy()
287    
288      def SaveSession(self):      def SaveSession(self):
289          if main.app.session.filename == None:          if self.application.session.filename == None:
290              self.SaveSessionAs()              self.SaveSessionAs()
291          main.app.SaveSession()          self.application.SaveSession()
292    
293      def SaveSessionAs(self):      def SaveSessionAs(self):
294          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",
295                             "*.thuban", wxOPEN)                             "*.thuban", wxOPEN)
296          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
297              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
298              main.app.SaveSession()              self.application.SaveSession()
299          dlg.Destroy()          dlg.Destroy()
300    
301      def Exit(self):      def Exit(self):
# Line 303  class MainWindow(wxFrame): Line 315  class MainWindow(wxFrame):
315          name = "session_tree"          name = "session_tree"
316          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
317          if dialog is None:          if dialog is None:
318              dialog = tree.SessionTreeView(self, main.app, name)              dialog = tree.SessionTreeView(self, self.application, name)
319              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
320              dialog.Show(true)              dialog.Show(true)
321          else:          else:
# Line 349  class MainWindow(wxFrame): Line 361  class MainWindow(wxFrame):
361          layer = self.current_layer()          layer = self.current_layer()
362          if layer is not None:          if layer is not None:
363              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
364            
365      def LowerLayer(self):      def LowerLayer(self):
366          layer = self.current_layer()          layer = self.current_layer()
367          if layer is not None:          if layer is not None:
# Line 489  class MainWindow(wxFrame): Line 501  class MainWindow(wxFrame):
501    
502  # Helper functions to define common command implementations  # Helper functions to define common command implementations
503  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
504      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
505      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
506    
507  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
508                      icon = "", sensitive = None):                      icon = "", sensitive = None):
509      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the mainwindow object"""
510      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
511                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
512                           sensitive = sensitive))                           sensitive = sensitive))
# Line 503  def _tool_command(name, title, method, t Line 515  def _tool_command(name, title, method, t
515                    icon = ""):                    icon = ""):
516      """Add a tool command"""      """Add a tool command"""
517      def check_current_tool(context, name=toolname):      def check_current_tool(context, name=toolname):
518          return context.canvas.CurrentTool() == name          return context.mainwindow.canvas.CurrentTool() == name
519      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
520                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
521                           checked = check_current_tool))                           checked = check_current_tool))
522    
523  def _has_selected_layer(context):  def _has_selected_layer(context):
524      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
525      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
526    
527  # File menu  # File menu
528  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", "&New Session", "NewSession")
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