| 1 |
# Copyright (C) 2001 by Intevation GmbH |
| 2 |
# Authors: |
| 3 |
# Jan-Oliver Wagner <[email protected]> |
| 4 |
# Bernhard Herzog <[email protected]> |
| 5 |
# |
| 6 |
# This program is free software under the GPL (>=v2) |
| 7 |
# Read the file COPYING coming with Thuban for details. |
| 8 |
|
| 9 |
""" |
| 10 |
The main window |
| 11 |
""" |
| 12 |
|
| 13 |
__version__ = "$Revision$" |
| 14 |
|
| 15 |
import sys, os |
| 16 |
|
| 17 |
from wxPython.wx import * |
| 18 |
|
| 19 |
import Thuban |
| 20 |
from Thuban.Model.session import Session |
| 21 |
from Thuban.Model.map import Map |
| 22 |
from Thuban.Model.layer import Layer |
| 23 |
from Thuban.Model.color import Color |
| 24 |
from Thuban.Model.proj import Projection |
| 25 |
|
| 26 |
import view |
| 27 |
import tree |
| 28 |
import proj4dialog |
| 29 |
import tableview, identifyview |
| 30 |
|
| 31 |
import main |
| 32 |
from command import registry, Command |
| 33 |
|
| 34 |
|
| 35 |
# the directory where the toolbar icons are stored |
| 36 |
bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps") |
| 37 |
bitmapext = ".xpm" |
| 38 |
|
| 39 |
|
| 40 |
class MainWindow(wxFrame): |
| 41 |
|
| 42 |
def __init__(self, parent, ID): |
| 43 |
wxFrame.__init__(self, parent, ID, 'Thuban', |
| 44 |
wxDefaultPosition, wxSize(400, 300)) |
| 45 |
|
| 46 |
self.CreateStatusBar() |
| 47 |
self.SetStatusText("This is the wxPython-based " |
| 48 |
"Graphical User Interface for exploring geographic data") |
| 49 |
|
| 50 |
self.identify_view = None |
| 51 |
|
| 52 |
self.init_ids() |
| 53 |
|
| 54 |
menuBar = wxMenuBar() |
| 55 |
|
| 56 |
menu = wxMenu() |
| 57 |
menuBar.Append(menu, "&File"); |
| 58 |
for name in ["new_session", "open_session", None, |
| 59 |
"save_session", "save_session_as", None, |
| 60 |
"exit"]: |
| 61 |
self.add_menu_command(menu, name) |
| 62 |
|
| 63 |
menu = wxMenu() |
| 64 |
menuBar.Append(menu, "&Map"); |
| 65 |
for name in ["map_projection", |
| 66 |
None, |
| 67 |
"map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool", |
| 68 |
"map_identify_tool", "map_label_tool", |
| 69 |
None, |
| 70 |
"map_full_extent", |
| 71 |
None, |
| 72 |
"map_print"]: |
| 73 |
self.add_menu_command(menu, name) |
| 74 |
|
| 75 |
menu = wxMenu() |
| 76 |
menuBar.Append(menu, "&Layer"); |
| 77 |
for name in ["layer_add", "layer_remove", |
| 78 |
None, |
| 79 |
"layer_fill_color", "layer_transparent_fill", |
| 80 |
"layer_ourline_color", "layer_no_outline", |
| 81 |
None, |
| 82 |
"layer_raise", "layer_lower", |
| 83 |
None, |
| 84 |
"layer_show", "layer_hide", |
| 85 |
None, |
| 86 |
"layer_show_table"]: |
| 87 |
self.add_menu_command(menu, name) |
| 88 |
|
| 89 |
menu = wxMenu() |
| 90 |
menuBar.Append(menu, "&Help"); |
| 91 |
self.add_menu_command(menu, "help_about") |
| 92 |
|
| 93 |
self.SetMenuBar(menuBar) |
| 94 |
|
| 95 |
# toolbar |
| 96 |
toolbar = self.CreateToolBar(wxTB_3DBUTTONS) |
| 97 |
for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool", |
| 98 |
"map_identify_tool", "map_label_tool"]: |
| 99 |
self.add_toolbar_command(toolbar, name) |
| 100 |
# call Realize to make sure that the tools appear. |
| 101 |
toolbar.Realize() |
| 102 |
|
| 103 |
# Create the map canvas |
| 104 |
canvas = view.MapCanvas(self, -1) |
| 105 |
self.canvas = canvas |
| 106 |
|
| 107 |
EVT_CLOSE(self, self.OnClose) |
| 108 |
|
| 109 |
def init_ids(self): |
| 110 |
"""Initialize the ids""" |
| 111 |
self.current_id = 6000 |
| 112 |
self.id_to_name = {} |
| 113 |
self.name_to_id = {} |
| 114 |
|
| 115 |
def get_id(self, name): |
| 116 |
"""Return the wxWindows id for the command named name. |
| 117 |
|
| 118 |
Create a new one if there isn't one yet""" |
| 119 |
ID = self.name_to_id.get(name) |
| 120 |
if ID is None: |
| 121 |
ID = self.current_id |
| 122 |
self.current_id = self.current_id + 1 |
| 123 |
self.name_to_id[name] = ID |
| 124 |
self.id_to_name[ID] = name |
| 125 |
return ID |
| 126 |
|
| 127 |
def add_menu_command(self, menu, name): |
| 128 |
"""Add the command with name name to the menu menu. |
| 129 |
|
| 130 |
If name is None, add a separator. |
| 131 |
""" |
| 132 |
if name is None: |
| 133 |
menu.AppendSeparator() |
| 134 |
else: |
| 135 |
command = registry.Command(name) |
| 136 |
if command is not None: |
| 137 |
ID = self.get_id(name) |
| 138 |
menu.Append(ID, command.Title(), command.HelpText(), |
| 139 |
command.IsCheckCommand()) |
| 140 |
EVT_MENU(self, ID, self.invoke_command) |
| 141 |
if command.IsDynamic(): |
| 142 |
EVT_UPDATE_UI(self, ID, self.update_command_ui) |
| 143 |
else: |
| 144 |
print "Unknown command %s" % name |
| 145 |
|
| 146 |
def add_toolbar_command(self, toolbar, name): |
| 147 |
"""Add the command with name name to the toolbar toolbar. |
| 148 |
|
| 149 |
If name is None, add a separator. |
| 150 |
""" |
| 151 |
# Assume that all toolbar commands are also menu commmands so |
| 152 |
# that we don't have to add the event handlers here |
| 153 |
if name is None: |
| 154 |
toolbar.AddSeparator() |
| 155 |
else: |
| 156 |
command = registry.Command(name) |
| 157 |
if command is not None: |
| 158 |
ID = self.get_id(name) |
| 159 |
filename = os.path.join(bitmapdir, command.Icon()) + bitmapext |
| 160 |
bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM) |
| 161 |
toolbar.AddTool(ID, bitmap, |
| 162 |
shortHelpString = command.HelpText(), |
| 163 |
isToggle = command.IsCheckCommand()) |
| 164 |
else: |
| 165 |
print "Unknown command %s" % name |
| 166 |
|
| 167 |
def invoke_command(self, event): |
| 168 |
name = self.id_to_name.get(event.GetId()) |
| 169 |
if name is not None: |
| 170 |
command = registry.Command(name) |
| 171 |
command.Execute(self) |
| 172 |
else: |
| 173 |
print "Unknown command ID %d" % event.GetId() |
| 174 |
|
| 175 |
def update_command_ui(self, event): |
| 176 |
#print "update_command_ui", self.id_to_name[event.GetId()] |
| 177 |
command = registry.Command(self.id_to_name[event.GetId()]) |
| 178 |
if command is not None: |
| 179 |
event.Enable(command.Sensitive(self)) |
| 180 |
event.SetText(command.DynText(self)) |
| 181 |
if command.IsCheckCommand(): |
| 182 |
event.Check(command.Checked(self)) |
| 183 |
|
| 184 |
def NewSession(self): |
| 185 |
session = Session("") |
| 186 |
session.AddMap(Map("")) |
| 187 |
main.app.SetSession(session) |
| 188 |
|
| 189 |
def OpenSession(self): |
| 190 |
dlg = wxFileDialog(self, "Select a session file", ".", "", |
| 191 |
"*.session", wxOPEN) |
| 192 |
if dlg.ShowModal() == wxID_OK: |
| 193 |
main.app.OpenSession(dlg.GetPath()) |
| 194 |
dlg.Destroy() |
| 195 |
|
| 196 |
def SaveSession(self): |
| 197 |
main.app.SaveSession() |
| 198 |
|
| 199 |
def SaveSessionAs(self): |
| 200 |
dlg = wxFileDialog(self, "Enter a filename for session", ".", "", |
| 201 |
"*.session", wxOPEN) |
| 202 |
if dlg.ShowModal() == wxID_OK: |
| 203 |
main.app.session.SetFilename(dlg.GetPath()) |
| 204 |
main.app.SaveSession() |
| 205 |
dlg.Destroy() |
| 206 |
|
| 207 |
def Exit(self): |
| 208 |
self.Close(false) |
| 209 |
|
| 210 |
def OnClose(self, event): |
| 211 |
veto = 0 |
| 212 |
if main.app.session.WasModified(): |
| 213 |
flags = wxYES_NO | wxICON_QUESTION |
| 214 |
if event.CanVeto(): |
| 215 |
flags = flags | wxCANCEL |
| 216 |
dlg = wxMessageDialog(self, |
| 217 |
("The session has been modified." |
| 218 |
" Do you want to save it?"), |
| 219 |
"Exit", flags) |
| 220 |
result = dlg.ShowModal() |
| 221 |
dlg.Destroy() |
| 222 |
if result == wxID_YES: |
| 223 |
self.SaveSession() |
| 224 |
elif result == wxID_CANCEL: |
| 225 |
veto = 1 |
| 226 |
|
| 227 |
if veto: |
| 228 |
event.Veto() |
| 229 |
else: |
| 230 |
self.Destroy() |
| 231 |
|
| 232 |
def SetMap(self, map): |
| 233 |
self.canvas.SetMap(map) |
| 234 |
|
| 235 |
def About(self): |
| 236 |
dlg = wxMessageDialog(self, |
| 237 |
("Thuban is a program for\n" |
| 238 |
"exploring geographic data.\n" |
| 239 |
"Copyright (C) 2001 Intevation GmbH.\n" |
| 240 |
"Thuban is licensed under the GPL"), |
| 241 |
"About", wxOK | wxICON_INFORMATION) |
| 242 |
dlg.ShowModal() |
| 243 |
dlg.Destroy() |
| 244 |
|
| 245 |
def AddLayer(self): |
| 246 |
dlg = wxFileDialog(self, "Select a session file", ".", "", "*.*", |
| 247 |
wxOPEN) |
| 248 |
if dlg.ShowModal() == wxID_OK: |
| 249 |
filename = dlg.GetPath() |
| 250 |
title = os.path.splitext(os.path.basename(filename))[0] |
| 251 |
layer = Layer(title, filename) |
| 252 |
self.canvas.Map().AddLayer(layer) |
| 253 |
dlg.Destroy() |
| 254 |
|
| 255 |
def RemoveLayer(self): |
| 256 |
layer = self.current_layer() |
| 257 |
if layer is not None: |
| 258 |
self.canvas.Map().RemoveLayer(layer) |
| 259 |
else: |
| 260 |
dlg = wxMessageDialog(self, "No layer is selected.\n", |
| 261 |
"Remove layer", wxOK | wxICON_INFORMATION) |
| 262 |
dlg.ShowModal() |
| 263 |
dlg.Destroy() |
| 264 |
|
| 265 |
def RaiseLayer(self): |
| 266 |
layer = self.current_layer() |
| 267 |
if layer is not None: |
| 268 |
self.canvas.Map().RaiseLayer(layer) |
| 269 |
|
| 270 |
def LowerLayer(self): |
| 271 |
layer = self.current_layer() |
| 272 |
if layer is not None: |
| 273 |
self.canvas.Map().LowerLayer(layer) |
| 274 |
|
| 275 |
def current_layer(self): |
| 276 |
"""Return the currently selected layer. |
| 277 |
|
| 278 |
If no layer is selected, return None |
| 279 |
""" |
| 280 |
tree = main.app.tree.tree |
| 281 |
layer = tree.GetPyData(tree.GetSelection()) |
| 282 |
if isinstance(layer, Layer): |
| 283 |
return layer |
| 284 |
return None |
| 285 |
|
| 286 |
def has_selected_layer(self): |
| 287 |
"""Return true if a layer is currently selected""" |
| 288 |
tree = main.app.tree.tree |
| 289 |
layer = tree.GetPyData(tree.GetSelection()) |
| 290 |
return isinstance(layer, Layer) |
| 291 |
|
| 292 |
def choose_color(self): |
| 293 |
"""Run the color selection dialog and return the selected color. |
| 294 |
|
| 295 |
If the user cancels, return None. |
| 296 |
""" |
| 297 |
dlg = wxColourDialog(self) |
| 298 |
color = None |
| 299 |
if dlg.ShowModal() == wxID_OK: |
| 300 |
data = dlg.GetColourData() |
| 301 |
wxc = data.GetColour() |
| 302 |
color = Color(wxc.Red() / 255.0, |
| 303 |
wxc.Green() / 255.0, |
| 304 |
wxc.Blue() / 255.0) |
| 305 |
dlg.Destroy() |
| 306 |
return color |
| 307 |
|
| 308 |
def LayerFillColor(self): |
| 309 |
layer = self.current_layer() |
| 310 |
if layer is not None: |
| 311 |
color = self.choose_color() |
| 312 |
if color is not None: |
| 313 |
layer.SetFill(color) |
| 314 |
|
| 315 |
def LayerTransparentFill(self): |
| 316 |
layer = self.current_layer() |
| 317 |
if layer is not None: |
| 318 |
layer.SetFill(None) |
| 319 |
|
| 320 |
def LayerOutlineColor(self): |
| 321 |
layer = self.current_layer() |
| 322 |
if layer is not None: |
| 323 |
color = self.choose_color() |
| 324 |
if color is not None: |
| 325 |
layer.SetStroke(color) |
| 326 |
|
| 327 |
def LayerNoOutline(self): |
| 328 |
layer = self.current_layer() |
| 329 |
if layer is not None: |
| 330 |
layer.SetStroke(None) |
| 331 |
|
| 332 |
def HideLayer(self): |
| 333 |
layer = self.current_layer() |
| 334 |
if layer is not None: |
| 335 |
layer.SetVisible(0) |
| 336 |
|
| 337 |
def ShowLayer(self): |
| 338 |
layer = self.current_layer() |
| 339 |
if layer is not None: |
| 340 |
layer.SetVisible(1) |
| 341 |
|
| 342 |
def LayerShowTable(self): |
| 343 |
layer = self.current_layer() |
| 344 |
if layer is not None: |
| 345 |
tv = tableview.TableFrame(self, layer.table) |
| 346 |
tv.Show(true) |
| 347 |
|
| 348 |
def Projection(self): |
| 349 |
map = self.canvas.Map() |
| 350 |
proj = map.projection |
| 351 |
if proj is None: |
| 352 |
proj4Dlg = proj4dialog.Proj4Dialog(NULL, None) |
| 353 |
else: |
| 354 |
proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params) |
| 355 |
if proj4Dlg.ShowModal() == wxID_OK: |
| 356 |
params = proj4Dlg.GetParams() |
| 357 |
if params is not None: |
| 358 |
proj = Projection(params) |
| 359 |
else: |
| 360 |
proj = None |
| 361 |
map.SetProjection(proj) |
| 362 |
proj4Dlg.Destroy() |
| 363 |
|
| 364 |
def ZoomInTool(self): |
| 365 |
self.canvas.ZoomInTool() |
| 366 |
|
| 367 |
def ZoomOutTool(self): |
| 368 |
self.canvas.ZoomOutTool() |
| 369 |
|
| 370 |
def PanTool(self): |
| 371 |
self.canvas.PanTool() |
| 372 |
|
| 373 |
def IdentifyTool(self): |
| 374 |
if self.identify_view is None: |
| 375 |
self.identify_view = identifyview.IdentifyView(self, main.app) |
| 376 |
self.identify_view.Show(true) |
| 377 |
self.canvas.IdentifyTool() |
| 378 |
|
| 379 |
def LabelTool(self): |
| 380 |
self.canvas.LabelTool() |
| 381 |
|
| 382 |
def FullExtent(self): |
| 383 |
self.canvas.FitMapToWindow() |
| 384 |
|
| 385 |
def PrintMap(self): |
| 386 |
self.canvas.Print() |
| 387 |
|
| 388 |
|
| 389 |
# |
| 390 |
# Define all the commands available in the main window |
| 391 |
# |
| 392 |
|
| 393 |
|
| 394 |
# Helper functions to define common command implementations |
| 395 |
def call_method(context, methodname, *args): |
| 396 |
"""Call the context's method methodname with args *args""" |
| 397 |
apply(getattr(context, methodname), args) |
| 398 |
|
| 399 |
def _method_command(name, title, method, helptext = "", sensitive = None): |
| 400 |
"""Add a command implemented by a method of the context object""" |
| 401 |
registry.Add(Command(name, title, call_method, args=(method,), |
| 402 |
helptext = helptext, sensitive = sensitive)) |
| 403 |
def _tool_command(name, title, method, toolname, helptext = "", |
| 404 |
icon = ""): |
| 405 |
"""Add a tool command""" |
| 406 |
def check_current_tool(context, name=toolname): |
| 407 |
return context.canvas.CurrentTool() == name |
| 408 |
registry.Add(Command(name, title, call_method, args=(method,), |
| 409 |
helptext = helptext, icon = icon, |
| 410 |
checked = check_current_tool)) |
| 411 |
|
| 412 |
def _has_selected_layer(context): |
| 413 |
"""Return true if a layer is selected in the context""" |
| 414 |
return context.has_selected_layer() |
| 415 |
|
| 416 |
# File menu |
| 417 |
_method_command("new_session", "&New Session", "NewSession") |
| 418 |
_method_command("open_session", "&Open Session", "OpenSession") |
| 419 |
_method_command("save_session", "&Save Session", "SaveSession") |
| 420 |
_method_command("save_session_as", "Save Session &As", "SaveSessionAs") |
| 421 |
_method_command("exit", "&Exit", "Exit") |
| 422 |
|
| 423 |
# Help menu |
| 424 |
_method_command("help_about", "&About", "About") |
| 425 |
|
| 426 |
|
| 427 |
# Map menu |
| 428 |
_method_command("map_projection", "Pro&jection", "Projection") |
| 429 |
|
| 430 |
_tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool", |
| 431 |
helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in") |
| 432 |
_tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool", |
| 433 |
helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out") |
| 434 |
_tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool", |
| 435 |
helptext = "Switch to map-mode 'pan'", icon = "pan") |
| 436 |
_tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool", |
| 437 |
helptext = "Switch to map-mode 'identify'", icon = "identify") |
| 438 |
_tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool", |
| 439 |
helptext = "Add/Remove labels", icon = "label") |
| 440 |
_method_command("map_full_extent", "&Full extent", "FullExtent") |
| 441 |
_method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map") |
| 442 |
|
| 443 |
# Layer menu |
| 444 |
_method_command("layer_add", "&Add", "AddLayer", |
| 445 |
helptext = "Add a new layer to active map") |
| 446 |
_method_command("layer_remove", "&Remove", "RemoveLayer", |
| 447 |
helptext = "Remove selected layer(s)", |
| 448 |
sensitive = _has_selected_layer) |
| 449 |
_method_command("layer_fill_color", "&Fill Color", "LayerFillColor", |
| 450 |
helptext = "Set the fill color of selected layer(s)", |
| 451 |
sensitive = _has_selected_layer) |
| 452 |
_method_command("layer_transparent_fill", "&Transparent Fill", |
| 453 |
"LayerTransparentFill", |
| 454 |
helptext = "Do not fill the selected layer(s)", |
| 455 |
sensitive = _has_selected_layer) |
| 456 |
_method_command("layer_ourline_color", "&Outline Color", "LayerOutlineColor", |
| 457 |
helptext = "Set the outline color of selected layer(s)", |
| 458 |
sensitive = _has_selected_layer) |
| 459 |
_method_command("layer_no_outline", "&No Outline", "LayerNoOutline", |
| 460 |
helptext = "Do not draw the outline of the selected layer(s)", |
| 461 |
sensitive = _has_selected_layer) |
| 462 |
_method_command("layer_raise", "&Raise", "RaiseLayer", |
| 463 |
helptext = "Raise selected layer(s)", |
| 464 |
sensitive = _has_selected_layer) |
| 465 |
_method_command("layer_lower", "&Lower", "LowerLayer", |
| 466 |
helptext = "Lower selected layer(s)", |
| 467 |
sensitive = _has_selected_layer) |
| 468 |
_method_command("layer_show", "&Show", "ShowLayer", |
| 469 |
helptext = "Make selected layer(s) visible", |
| 470 |
sensitive = _has_selected_layer) |
| 471 |
_method_command("layer_hide", "&Hide", "HideLayer", |
| 472 |
helptext = "Make selected layer(s) unvisible", |
| 473 |
sensitive = _has_selected_layer) |
| 474 |
_method_command("layer_show_table", "Show Ta&ble", "LayerShowTable", |
| 475 |
helptext = "Show the selected layer's table", |
| 476 |
sensitive = _has_selected_layer) |
Parent Directory
| 
Revision Log