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__version__ = "$Revision: 1.128 $"
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# $Source: /thubanrepository/thuban/Thuban/UI/mainwindow.py,v $
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# $Id: mainwindow.py,v 1.128 2004/02/13 10:46:44 bh Exp $
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__version__ = "$Revision: 2700 $"
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# $Id: mainwindow.py 2700 2006-09-18 14:27:02Z dpinte $
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from wxPython.wx import *
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from Thuban import _
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from Thuban.Model.messages import TITLE_CHANGED
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from Thuban.Model.messages import TITLE_CHANGED, LAYER_PROJECTION_CHANGED, \
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MAP_PROJECTION_CHANGED, MAP_LAYERS_ADDED, MAP_LAYERS_REMOVED
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from Thuban.Model.session import create_empty_session
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from Thuban.Model.layer import Layer, RasterLayer
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from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
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# XXX: replace this by
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# from wxPython.lib.dialogs import wxMultipleChoiceDialog
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# when Thuban does not support wxPython 2.4.0 any more.
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from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
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from wx.lib.dialogs import MultipleChoiceDialog
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import tableview, identifyview
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from Thuban.UI.classifier import Classifier
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from menu import Menu
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"SelectedShapes": "canvas",
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# Messages from the canvas that may require a status bar update.
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# The update_status_bar method will be subscribed to these messages.
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update_status_bar_messages = (VIEW_POSITION, LAYER_PROJECTION_CHANGED,
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MAP_PROJECTION_CHANGED, MAP_LAYERS_ADDED,
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def __init__(self, parent, ID, title, application, interactor,
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initial_message = None, size = wxSize(-1, -1)):
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DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
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initial_message = None, size = wx.Size(-1, -1)):
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DockFrame.__init__(self, parent, ID, title, wx.DefaultPosition, size)
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#wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
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self.application = application
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"""Bind the necessary events for the given command and ID"""
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if not self.events_bound.has_key(ID):
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# the events haven't been bound yet
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EVT_MENU(self, ID, self.invoke_command)
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self.Bind(wx.EVT_MENU, self.invoke_command, id=ID)
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if command.IsDynamic():
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EVT_UPDATE_UI(self, ID, self.update_command_ui)
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self.Bind(wx.EVT_UPDATE_UI, self.update_command_ui, id=ID)
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def build_menu_bar(self, menudesc):
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"""Build and return the menu bar from the menu description"""
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menu_bar = wxMenuBar()
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menu_bar = wx.MenuBar()
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for item in menudesc.items:
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# here the items must all be Menu instances themselves
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The parameter should be an instance of the Menu class but it
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should not contain submenus.
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toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
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toolbar = self.CreateToolBar(wx.TB_3DBUTTONS)
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# set the size of the tools' bitmaps. Not needed on wxGTK, but
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# on Windows, although it doesn't work very well there. It seems
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# that only 16x16 icons are really supported on windows.
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# We probably shouldn't hardwire the bitmap size here.
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toolbar.SetToolBitmapSize(wxSize(24, 24))
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toolbar.SetToolBitmapSize(wx.Size(24, 24))
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for item in toolbardesc.items:
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if command.IsCheckCommand():
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event.Check(command.Checked(context))
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def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
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def RunMessageBox(self, title, text, flags = wx.OK | wx.ICON_INFORMATION):
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"""Run a modal message box with the given text, title and flags
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and return the result"""
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dlg = wxMessageDialog(self, text, title, flags)
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dlg = wx.MessageDialog(self, text, title, flags)
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dlg.CenterOnParent()
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result = dlg.ShowModal()
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def get_open_dialog(self, name):
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return self.dialogs.get(name)
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def view_position_changed(self):
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def update_status_bar(self, *args):
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"""Handler for a bunch of messages that may require a status bar update
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Currently this handles the canvas' VIEW_POSITION_CHANGED
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messages as well as several messages about changes in the map
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which may affect whether and how projections are used.
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These messages affect the text in the status bar in the following way:
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When VIEW_POSITION_CHANGED messages are sent and the mouse is
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actually in the canvas window, display the current mouse
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coordinates as defined by the canvas' CurrentPosition method.
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If there is no current position to show, check whether there is
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a potential problem with the map and layer projections and
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display a message about it. Otherwise the status bar will
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The text is displayed in the status bar using the
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set_position_text method.
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# Implementation note: We do not really have to know which
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# message was sent. We can simply call the canvas'
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# CurrentPosition method and if that returns a tuple, it was a
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# VIEW_POSITION_CHANGED message and we have to display it.
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# Otherwise it was a VIEW_POSITION_CHANGED message where the
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# mouse has left the canvas or it was a message about a change
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# to the map, in which case we check the projections.
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# When changing this method, keep in mind that the
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# VIEW_POSITION_CHANGED message are sent for every mouse move in
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# the canvas window, that is they happen very often, so the path
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# taken in that case has to be fast.
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pos = self.canvas.CurrentPosition()
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if pos is not None:
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text = "(%10.10g, %10.10g)" % pos
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for layer in self.canvas.Map().Layers():
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bbox = layer.LatLongBoundingBox()
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left, bottom, right, top = bbox
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if not (-180 <= left <= 180 and
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-180 <= right <= 180 and
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-90 <= bottom <= 90):
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text = _("Select layer '%s' and pick a projection "
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"using Layer/Projection...") % layer.title
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self.set_position_text(text)
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def set_position_text(self, text):
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"""Set the statusbar text showing the current position.
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"""Set the statusbar text to that created by update_status_bar
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By default the text is shown in field 0 of the status bar.
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Override this method in derived classes to put it into a
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different field of the statusbar.
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For historical reasons this method is called set_position_text
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because at first the text was always either the current position
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or the empty string. Now it can contain other messages as well.
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The method will be renamed at one point.
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# Note: If this method is renamed we should perhaps think about
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# some backwards compatibility measures for projects like
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# GREAT-ER which override this method.
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self.SetStatusText(text)
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def OpenOrRaiseDialog(self, name, dialog_class, *args, **kw):
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Open or raise a dialog.
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If a dialog with the denoted name does already exist it is
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raised. Otherwise a new dialog, an instance of dialog_class,
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is created, inserted into the main list and displayed.
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dialog = self.get_open_dialog(name)
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dialog = dialog_class(self, name, *args, **kw)
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self.add_dialog(name, dialog)
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def save_modified_session(self, can_veto = 1):
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"""If the current session has been modified, ask the user
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whether to save it and do so if requested. Return the outcome of
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a cancel button, otherwise not.
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if self.application.session.WasModified():
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flags = wxYES_NO | wxICON_QUESTION
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flags = wx.YES_NO | wx.ICON_QUESTION
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flags = flags | wxCANCEL
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flags = flags | wx.CANCEL
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result = self.RunMessageBox(_("Exit"),
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_("The session has been modified."
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" Do you want to save it?"),
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if result == wxID_YES:
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if result == wx.ID_YES:
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self.SaveSession()
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def NewSession(self):
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if self.save_modified_session() != wxID_CANCEL:
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if self.save_modified_session() != wx.ID_CANCEL:
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self.application.SetSession(create_empty_session())
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def OpenSession(self):
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if self.save_modified_session() != wxID_CANCEL:
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dlg = wxFileDialog(self, _("Open Session"),
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self.application.Path("data"), "",
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"Thuban Session File (*.thuban)|*.thuban",
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if dlg.ShowModal() == wxID_OK:
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if self.save_modified_session() != wx.ID_CANCEL:
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dlg = wx.FileDialog(self, _("Open Session"),
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self.application.Path("data"), "",
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"Thuban Session File (*.thuban)|*.thuban",
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if dlg.ShowModal() == wx.ID_OK:
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self.application.OpenSession(dlg.GetPath(),
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self.run_db_param_dialog)
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self.application.SetPath("data", dlg.GetPath())
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self.application.SaveSession()
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def SaveSessionAs(self):
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dlg = wxFileDialog(self, _("Save Session As"),
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dlg = wx.FileDialog(self, _("Save Session As"),
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self.application.Path("data"), "",
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"Thuban Session File (*.thuban)|*.thuban",
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wxSAVE|wxOVERWRITE_PROMPT)
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if dlg.ShowModal() == wxID_OK:
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"Thuban Session File (*.thuban)|*.thuban",
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wx.SAVE|wx.OVERWRITE_PROMPT)
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if dlg.ShowModal() == wx.ID_OK:
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self.application.session.SetFilename(dlg.GetPath())
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self.application.SaveSession()
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self.application.SetPath("data",dlg.GetPath())
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def OnClose(self, event):
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result = self.save_modified_session(can_veto = event.CanVeto())
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if result == wxID_CANCEL:
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if result == wx.ID_CANCEL:
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# FIXME: it would be better to tie the unsubscription to
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# wx's destroy event, but that isn't implemented for wxGTK
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self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
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for channel in self.update_status_bar_messages:
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self.canvas.Unsubscribe(channel, self.update_status_bar)
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DockFrame.OnClose(self, event)
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for dlg in self.dialogs.values():
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def AddLayer(self):
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dlg = wxFileDialog(self, _("Select one or more data files"),
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dlg = wx.FileDialog(self, _("Select one or more data files"),
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self.application.Path("data"), "",
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_("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
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_("All Files (*.*)") + "|*.*",
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if dlg.ShowModal() == wxID_OK:
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wx.OPEN | wx.MULTIPLE)
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if dlg.ShowModal() == wx.ID_OK:
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filenames = dlg.GetPaths()
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for filename in filenames:
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title = os.path.splitext(os.path.basename(filename))[0]
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session = self.application.Session()
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dlg = ChooseDBTableDialog(self, self.application.Session())
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if dlg.ShowModal() == wxID_OK:
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dbconn, dbtable = dlg.GetTable()
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if dlg.ShowModal() == wx.ID_OK:
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dbconn, dbtable, id_column, geo_column = dlg.GetTable()
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title = str(dbtable)
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# Chose the correct Interface for the database type
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store = PostGISShapeStore(dbconn, dbtable)
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session.AddShapeStore(store)
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store = session.OpenDBShapeStore(dbconn, dbtable,
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id_column = id_column,
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geometry_column = geo_column)
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layer = Layer(title, store)
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# Some error occured while initializing the layer
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return layer is not None and hasattr(layer, "ShapeStore")
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def LayerShowTable(self):
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Present a TableView Window for the current layer.
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In case the window is already open, bring it to the front.
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In case, there is no active layer, do nothing.
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In case, the layer has no ShapeStore, do nothing.
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layer = self.current_layer()
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if layer is not None:
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if not hasattr(layer, "ShapeStore"):
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table = layer.ShapeStore().Table()
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name = "table_view" + str(id(table))
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dialog = self.get_open_dialog(name)
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self.OpenLayerProperties(layer)
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def OpenLayerProperties(self, layer, group = None):
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name = "layer_properties" + str(id(layer))
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dialog = self.get_open_dialog(name)
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dialog = Classifier(self, name, self.Map(), layer, group)
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self.add_dialog(name, dialog)
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Open or raise the properties dialog.
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This method opens or raises the properties dialog for the
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currently selected layer if one is defined for this layer
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dialog_class = layer_properties_dialogs.get(layer)
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if dialog_class is not None:
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name = "layer_properties" + str(id(layer))
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self.OpenOrRaiseDialog(name, dialog_class, layer, group = group)
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def LayerJoinTable(self):
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layer = self.canvas.SelectedLayer()
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def LegendShown(self):
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"""Return true iff the legend is currently open"""
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dialog = self.FindRegisteredDock("legend")
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dialog = self.FindRegisteredDock("legend")
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return dialog is not None and dialog.IsShown()
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def TableOpen(self):
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dlg = wxFileDialog(self, _("Open Table"),
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self.application.Path("data"), "",
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_("DBF Files (*.dbf)") + "|*.dbf|" +
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dlg = wx.FileDialog(self, _("Open Table"),
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self.application.Path("data"), "",
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_("DBF Files (*.dbf)") + "|*.dbf|" +
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#_("CSV Files (*.csv)") + "|*.csv|" +
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_("All Files (*.*)") + "|*.*",
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if dlg.ShowModal() == wxID_OK:
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_("All Files (*.*)") + "|*.*",
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if dlg.ShowModal() == wx.ID_OK:
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filename = dlg.GetPath()
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lst = [(t.Title(), t) for t in tables]
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titles = [i[0] for i in lst]
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dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
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dlg = MultipleChoiceDialog(self, _("Pick the tables to close:"),
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_("Close Table"), titles,
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size = (400, 300),
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style = wxDEFAULT_DIALOG_STYLE |
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if dlg.ShowModal() == wxID_OK:
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style = wx.DEFAULT_DIALOG_STYLE |
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if dlg.ShowModal() == wx.ID_OK:
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for i in dlg.GetValue():
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self.application.session.RemoveTable(lst[i][1])
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lst = [(t.Title(), t) for t in tables]
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titles = [i[0] for i in lst]
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dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
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dlg = MultipleChoiceDialog(self, _("Pick the table to show:"),
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_("Show Table"), titles,
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style = wxDEFAULT_DIALOG_STYLE |
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if (dlg.ShowModal() == wxID_OK):
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style = wx.DEFAULT_DIALOG_STYLE |
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if (dlg.ShowModal() == wx.ID_OK):
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for i in dlg.GetValue():
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# XXX: if the table belongs to a layer, open a
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# LayerTableFrame instead of QueryTableFrame
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lst = [(t.Title(), t) for t in tables]
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titles = [i[0] for i in lst]
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dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
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dlg = MultipleChoiceDialog(self, _("Pick the table to rename:"),
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_("Rename Table"), titles,
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style = wxDEFAULT_DIALOG_STYLE |
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if (dlg.ShowModal() == wxID_OK):
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style = wx.DEFAULT_DIALOG_STYLE |
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if (dlg.ShowModal() == wx.ID_OK):
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to_rename = [lst[i][1] for i in dlg.GetValue()]
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sensitive = _has_selected_shape_layer,
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helptext = _("Join and attach a table to the selected layer"))
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# further layer methods:
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_method_command("layer_to_top", _("&Top"), "LayerToTop",
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helptext = _("Put selected layer to the top"),
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sensitive = _has_selected_layer)
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_method_command("layer_to_bottom", _("&Bottom"), "LayerToBottom",
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helptext = _("Put selected layer to the bottom"),
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sensitive = _has_selected_layer)
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_method_command("layer_visibility", _("&Visible"), "ToggleLayerVisibility",
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checked = _has_selected_layer_visible,
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helptext = _("Toggle visibility of selected layer"),
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sensitive = _has_selected_layer)
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def _can_unjoin(context):
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"""Return whether the Layer/Unjoin command can be executed.
added
removed
Thuban/UI/mainwindow.py
