28 |
import tableview, identifyview |
import tableview, identifyview |
29 |
from menu import Menu |
from menu import Menu |
30 |
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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 |
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41 |
class MainWindow(wxFrame): |
class MainWindow(wxFrame): |
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43 |
def __init__(self, parent, ID, interactor): |
def __init__(self, parent, ID, title, application, interactor, |
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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) |
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self.application = application |
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self.interactor = interactor |
self.interactor = interactor |
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self.CreateStatusBar() |
self.CreateStatusBar() |
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self.SetStatusText("This is the wxPython-based " |
if initial_message: |
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"Graphical User Interface for exploring geographic data") |
self.SetStatusText(initial_message) |
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self.identify_view = None |
self.identify_view = None |
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return menu_bar |
return menu_bar |
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def build_menu(self, menudesc): |
def build_menu(self, menudesc): |
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"""Build and return a wxMenu from a menudescription""" |
"""Return a wxMenu built from the menu description menudesc""" |
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wxmenu = wxMenu() |
wxmenu = wxMenu() |
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last = None |
last = None |
118 |
for item in menudesc.items: |
for item in menudesc.items: |
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# here the items must all be Menu instances themselves |
|
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if item is None: |
if item is None: |
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# a separator. Only add one if the last item was not a |
# a separator. Only add one if the last item was not a |
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# separator |
# separator |
192 |
else: |
else: |
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print "Unknown command %s" % name |
print "Unknown command %s" % name |
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def Context(self): |
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"""Return the context object for a command invoked from this window |
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""" |
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return Context(self.application, self.application.Session(), self) |
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200 |
def invoke_command(self, event): |
def invoke_command(self, event): |
201 |
name = self.id_to_name.get(event.GetId()) |
name = self.id_to_name.get(event.GetId()) |
202 |
if name is not None: |
if name is not None: |
203 |
command = registry.Command(name) |
command = registry.Command(name) |
204 |
command.Execute(self) |
command.Execute(self.Context()) |
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else: |
else: |
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print "Unknown command ID %d" % event.GetId() |
print "Unknown command ID %d" % event.GetId() |
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def update_command_ui(self, event): |
def update_command_ui(self, event): |
209 |
#print "update_command_ui", self.id_to_name[event.GetId()] |
#print "update_command_ui", self.id_to_name[event.GetId()] |
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context = self.Context() |
211 |
command = registry.Command(self.id_to_name[event.GetId()]) |
command = registry.Command(self.id_to_name[event.GetId()]) |
212 |
if command is not None: |
if command is not None: |
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event.Enable(command.Sensitive(self)) |
event.Enable(command.Sensitive(context)) |
214 |
event.SetText(command.DynText(self)) |
event.SetText(command.DynText(context)) |
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if command.IsCheckCommand(): |
if command.IsCheckCommand(): |
216 |
event.Check(command.Checked(self)) |
event.Check(command.Checked(context)) |
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218 |
def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION): |
def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION): |
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"""Run a modal message box with the given text, title and flags |
"""Run a modal message box with the given text, title and flags |
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If the can_veto parameter is true (default) the dialog includes |
If the can_veto parameter is true (default) the dialog includes |
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a cancel button, otherwise not. |
a cancel button, otherwise not. |
263 |
""" |
""" |
264 |
if main.app.session.WasModified(): |
if self.application.session.WasModified(): |
265 |
flags = wxYES_NO | wxICON_QUESTION |
flags = wxYES_NO | wxICON_QUESTION |
266 |
if can_veto: |
if can_veto: |
267 |
flags = flags | wxCANCEL |
flags = flags | wxCANCEL |
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278 |
def NewSession(self): |
def NewSession(self): |
279 |
self.save_modified_session() |
self.save_modified_session() |
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main.app.SetSession(create_empty_session()) |
self.application.SetSession(create_empty_session()) |
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282 |
def OpenSession(self): |
def OpenSession(self): |
283 |
self.save_modified_session() |
self.save_modified_session() |
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dlg = wxFileDialog(self, "Select a session file", ".", "", |
dlg = wxFileDialog(self, "Select a session file", ".", "", |
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"*.thuban", wxOPEN) |
"*.thuban", wxOPEN) |
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if dlg.ShowModal() == wxID_OK: |
if dlg.ShowModal() == wxID_OK: |
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main.app.OpenSession(dlg.GetPath()) |
self.application.OpenSession(dlg.GetPath()) |
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dlg.Destroy() |
dlg.Destroy() |
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def SaveSession(self): |
def SaveSession(self): |
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if main.app.session.filename == None: |
if self.application.session.filename == None: |
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self.SaveSessionAs() |
self.SaveSessionAs() |
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main.app.SaveSession() |
self.application.SaveSession() |
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def SaveSessionAs(self): |
def SaveSessionAs(self): |
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dlg = wxFileDialog(self, "Enter a filename for session", ".", "", |
dlg = wxFileDialog(self, "Enter a filename for session", ".", "", |
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"*.thuban", wxOPEN) |
"*.thuban", wxOPEN) |
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if dlg.ShowModal() == wxID_OK: |
if dlg.ShowModal() == wxID_OK: |
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main.app.session.SetFilename(dlg.GetPath()) |
self.application.session.SetFilename(dlg.GetPath()) |
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main.app.SaveSession() |
self.application.SaveSession() |
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dlg.Destroy() |
dlg.Destroy() |
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def Exit(self): |
def Exit(self): |
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if result == wxID_CANCEL: |
if result == wxID_CANCEL: |
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event.Veto() |
event.Veto() |
310 |
else: |
else: |
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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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# yet. |
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self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed) |
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self.Destroy() |
self.Destroy() |
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def SetMap(self, map): |
def SetMap(self, map): |
318 |
self.canvas.SetMap(map) |
self.canvas.SetMap(map) |
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def Map(self): |
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"""Return the map displayed by this mainwindow""" |
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return self.canvas.Map() |
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def ShowSessionTree(self): |
def ShowSessionTree(self): |
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name = "session_tree" |
name = "session_tree" |
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dialog = self.get_open_dialog(name) |
dialog = self.get_open_dialog(name) |
327 |
if dialog is None: |
if dialog is None: |
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dialog = tree.SessionTreeView(self, main.app, name) |
dialog = tree.SessionTreeView(self, self.application, name) |
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self.add_dialog(name, dialog) |
self.add_dialog(name, dialog) |
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dialog.Show(true) |
dialog.Show(true) |
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else: |
else: |
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if layer is not None: |
if layer is not None: |
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self.canvas.Map().RemoveLayer(layer) |
self.canvas.Map().RemoveLayer(layer) |
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def CanRemoveLayer(self): |
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"""Return true if the currently selected layer can be deleted. |
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If no layer is selected return false. |
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The return value of this method determines whether the remove |
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layer command is sensitive in menu. |
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""" |
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layer = self.current_layer() |
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if layer is not None: |
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return self.canvas.Map().CanRemoveLayer(layer) |
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return 0 |
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def RaiseLayer(self): |
def RaiseLayer(self): |
384 |
layer = self.current_layer() |
layer = self.current_layer() |
385 |
if layer is not None: |
if layer is not None: |
386 |
self.canvas.Map().RaiseLayer(layer) |
self.canvas.Map().RaiseLayer(layer) |
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388 |
def LowerLayer(self): |
def LowerLayer(self): |
389 |
layer = self.current_layer() |
layer = self.current_layer() |
390 |
if layer is not None: |
if layer is not None: |
458 |
name = "table_view" + str(id(table)) |
name = "table_view" + str(id(table)) |
459 |
dialog = self.get_open_dialog(name) |
dialog = self.get_open_dialog(name) |
460 |
if dialog is None: |
if dialog is None: |
461 |
dialog = tableview.TableFrame(self, self.interactor, name, |
dialog = tableview.LayerTableFrame(self, self.interactor, name, |
462 |
"Table: %s" % layer.Title(), |
"Table: %s" % layer.Title(), |
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layer, table) |
layer, table) |
464 |
self.add_dialog(name, dialog) |
self.add_dialog(name, dialog) |
465 |
dialog.Show(true) |
dialog.Show(true) |
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else: |
else: |
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# Helper functions to define common command implementations |
# Helper functions to define common command implementations |
526 |
def call_method(context, methodname, *args): |
def call_method(context, methodname, *args): |
527 |
"""Call the context's method methodname with args *args""" |
"""Call the mainwindow's method methodname with args *args""" |
528 |
apply(getattr(context, methodname), args) |
apply(getattr(context.mainwindow, methodname), args) |
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def _method_command(name, title, method, helptext = "", |
def _method_command(name, title, method, helptext = "", |
531 |
icon = "", sensitive = None): |
icon = "", sensitive = None): |
532 |
"""Add a command implemented by a method of the context object""" |
"""Add a command implemented by a method of the mainwindow object""" |
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registry.Add(Command(name, title, call_method, args=(method,), |
registry.Add(Command(name, title, call_method, args=(method,), |
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helptext = helptext, icon = icon, |
helptext = helptext, icon = icon, |
535 |
sensitive = sensitive)) |
sensitive = sensitive)) |
536 |
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537 |
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def make_check_current_tool(toolname): |
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"""Return a function that tests if the currently active tool is toolname |
539 |
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540 |
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The returned function can be called with the context and returns |
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true iff the currently active tool's name is toolname. It's directly |
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usable as the 'checked' callback of a command. |
543 |
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""" |
544 |
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def check_current_tool(context, name=toolname): |
545 |
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return context.mainwindow.canvas.CurrentTool() == name |
546 |
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return check_current_tool |
547 |
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548 |
def _tool_command(name, title, method, toolname, helptext = "", |
def _tool_command(name, title, method, toolname, helptext = "", |
549 |
icon = ""): |
icon = "", sensitive = None): |
550 |
"""Add a tool command""" |
"""Add a tool command""" |
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def check_current_tool(context, name=toolname): |
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return context.canvas.CurrentTool() == name |
|
551 |
registry.Add(Command(name, title, call_method, args=(method,), |
registry.Add(Command(name, title, call_method, args=(method,), |
552 |
helptext = helptext, icon = icon, |
helptext = helptext, icon = icon, |
553 |
checked = check_current_tool)) |
checked = make_check_current_tool(toolname), |
554 |
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sensitive = sensitive)) |
555 |
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556 |
def _has_selected_layer(context): |
def _has_selected_layer(context): |
557 |
"""Return true if a layer is selected in the context""" |
"""Return true if a layer is selected in the context""" |
558 |
return context.has_selected_layer() |
return context.mainwindow.has_selected_layer() |
559 |
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560 |
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def _can_remove_layer(context): |
561 |
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return context.mainwindow.CanRemoveLayer() |
562 |
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563 |
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def _has_tree_window_shown(context): |
564 |
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"""Return true if the tree window is shown""" |
565 |
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return context.mainwindow.get_open_dialog("session_tree") is None |
566 |
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567 |
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def _has_visible_map(context): |
568 |
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"""Return true iff theres a visible map in the mainwindow. |
569 |
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570 |
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A visible map is a map with at least one visible layer.""" |
571 |
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map = context.mainwindow.Map() |
572 |
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if map is not None: |
573 |
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for layer in map.Layers(): |
574 |
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if layer.Visible(): |
575 |
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return 1 |
576 |
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return 0 |
577 |
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578 |
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579 |
# File menu |
# File menu |
580 |
_method_command("new_session", "&New Session", "NewSession") |
_method_command("new_session", "&New Session", "NewSession") |
581 |
_method_command("open_session", "&Open Session", "OpenSession") |
_method_command("open_session", "&Open Session", "OpenSession") |
582 |
_method_command("save_session", "&Save Session", "SaveSession") |
_method_command("save_session", "&Save Session", "SaveSession") |
583 |
_method_command("save_session_as", "Save Session &As", "SaveSessionAs") |
_method_command("save_session_as", "Save Session &As", "SaveSessionAs") |
584 |
_method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree") |
_method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree", |
585 |
_method_command("exit", "&Exit", "Exit") |
sensitive = _has_tree_window_shown) |
586 |
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_method_command("exit", "E&xit", "Exit") |
587 |
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|
588 |
# Help menu |
# Help menu |
589 |
_method_command("help_about", "&About", "About") |
_method_command("help_about", "&About", "About") |
593 |
_method_command("map_projection", "Pro&jection", "Projection") |
_method_command("map_projection", "Pro&jection", "Projection") |
594 |
|
|
595 |
_tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool", |
_tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool", |
596 |
helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in") |
helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in", |
597 |
|
sensitive = _has_visible_map) |
598 |
_tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool", |
_tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool", |
599 |
helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out") |
helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out", |
600 |
|
sensitive = _has_visible_map) |
601 |
_tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool", |
_tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool", |
602 |
helptext = "Switch to map-mode 'pan'", icon = "pan") |
helptext = "Switch to map-mode 'pan'", icon = "pan", |
603 |
|
sensitive = _has_visible_map) |
604 |
_tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool", |
_tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool", |
605 |
helptext = "Switch to map-mode 'identify'", icon = "identify") |
helptext = "Switch to map-mode 'identify'", icon = "identify", |
606 |
|
sensitive = _has_visible_map) |
607 |
_tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool", |
_tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool", |
608 |
helptext = "Add/Remove labels", icon = "label") |
helptext = "Add/Remove labels", icon = "label", |
609 |
|
sensitive = _has_visible_map) |
610 |
_method_command("map_full_extent", "&Full extent", "FullExtent", |
_method_command("map_full_extent", "&Full extent", "FullExtent", |
611 |
helptext = "Full Extent", icon = "fullextent") |
helptext = "Full Extent", icon = "fullextent", |
612 |
|
sensitive = _has_visible_map) |
613 |
_method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map") |
_method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map") |
614 |
|
|
615 |
# Layer menu |
# Layer menu |
617 |
helptext = "Add a new layer to active map") |
helptext = "Add a new layer to active map") |
618 |
_method_command("layer_remove", "&Remove Layer", "RemoveLayer", |
_method_command("layer_remove", "&Remove Layer", "RemoveLayer", |
619 |
helptext = "Remove selected layer(s)", |
helptext = "Remove selected layer(s)", |
620 |
sensitive = _has_selected_layer) |
sensitive = _can_remove_layer) |
621 |
_method_command("layer_fill_color", "&Fill Color", "LayerFillColor", |
_method_command("layer_fill_color", "&Fill Color", "LayerFillColor", |
622 |
helptext = "Set the fill color of selected layer(s)", |
helptext = "Set the fill color of selected layer(s)", |
623 |
sensitive = _has_selected_layer) |
sensitive = _has_selected_layer) |