ip2i_mapdisplay.py 18 KB
Newer Older
xuebingbing's avatar
xuebingbing committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532
"""
@package photo2image.ip2i_mapdisplay

@brief Display to manage ground control points with two toolbars, one
for various display management functions, one for manipulating GCPs.

Classes:
- mapdisplay::MapFrame

(C) 2006-2011 by the GRASS Development Team

This program is free software under the GNU General Public License
(>=v2). Read the file COPYING that comes with GRASS for details.

@author Markus Metz
"""

import os
import math
import platform

from core import globalvar
import wx
import wx.aui

from mapdisp.toolbars import MapToolbar
from gcp.toolbars import GCPDisplayToolbar, GCPManToolbar
from mapdisp.gprint import PrintOptions
from core.gcmd import GMessage
from gui_core.dialogs import GetImageHandlers, ImageSizeDialog
from gui_core.mapdisp import SingleMapFrame
from gui_core.wrap import Menu
from core.settings import UserSettings
from mapwin.buffered import BufferedMapWindow
from mapwin.base import MapWindowProperties

import mapdisp.statusbar as sb
import gcp.statusbar as sbgcp

# for standalone app
cmdfilename = None


class MapFrame(SingleMapFrame):
    """Main frame for map display window. Drawing takes place in
    child double buffered drawing window.
    """

    def __init__(self, parent, giface,
                 title=_("GRASS GIS Manage Location of Tick Points on a Scanned Photo"),
                 toolbars=["gcpdisp"], Map=None, auimgr=None,
                 name='GCPMapWindow', **kwargs):
        """Main map display window with toolbars, statusbar and
        DrawWindow

        :param giface: GRASS interface instance
        :param title: window title
        :param toolbars: array of activated toolbars, e.g. ['map', 'digit']
        :param map: instance of render.Map
        :param auimgs: AUI manager
        :param kwargs: wx.Frame attribures
        """

        SingleMapFrame.__init__(
            self,
            parent=parent,
            giface=giface,
            title=title,
            Map=Map,
            auimgr=auimgr,
            name=name,
            **kwargs)

        self._giface = giface
        # properties are shared in other objects, so defining here
        self.mapWindowProperties = MapWindowProperties()
        self.mapWindowProperties.setValuesFromUserSettings()
        self.mapWindowProperties.alignExtent = True

        #
        # Add toolbars
        #
        for toolb in toolbars:
            self.AddToolbar(toolb)

        self.activemap = self.toolbars['gcpdisp'].togglemap
        self.activemap.SetSelection(0)

        self.SrcMap = self.grwiz.SrcMap       # instance of render.Map
        self.TgtMap = self.grwiz.TgtMap       # instance of render.Map
        self._mgr.SetDockSizeConstraint(0.5, 0.5)

        #
        # Add statusbar
        #

        # items for choice
        self.statusbarItems = [sb.SbCoordinates,
                               sb.SbRegionExtent,
                               sb.SbCompRegionExtent,
                               sb.SbShowRegion,
                               sb.SbResolution,
                               sb.SbDisplayGeometry,
                               sb.SbMapScale,
                               sb.SbProjection,
                               sbgcp.SbGoToGCP,
                               sbgcp.SbRMSError]

        # create statusbar and its manager
        statusbar = self.CreateStatusBar(number=4, style=0)
        statusbar.SetStatusWidths([-5, -2, -1, -1])
        self.statusbarManager = sb.SbManager(
            mapframe=self, statusbar=statusbar)

        # fill statusbar manager
        self.statusbarManager.AddStatusbarItemsByClass(
            self.statusbarItems, mapframe=self, statusbar=statusbar)
        self.statusbarManager.AddStatusbarItem(
            sb.SbMask(self, statusbar=statusbar, position=2))
        self.statusbarManager.AddStatusbarItem(
            sb.SbRender(self, statusbar=statusbar, position=3))

        self.statusbarManager.SetMode(8)  # goto GCP

        #
        # Init map display (buffered DC & set default cursor)
        #
        self.grwiz.SwitchEnv('source')
        self.SrcMapWindow = BufferedMapWindow(
            parent=self, giface=self._giface, id=wx.ID_ANY,
            properties=self.mapWindowProperties, Map=self.SrcMap)

        self.grwiz.SwitchEnv('target')
        self.TgtMapWindow = BufferedMapWindow(
            parent=self, giface=self._giface, id=wx.ID_ANY,
            properties=self.mapWindowProperties, Map=self.TgtMap)
        self.MapWindow = self.SrcMapWindow
        self.Map = self.SrcMap
        self._setUpMapWindow(self.SrcMapWindow)
        self._setUpMapWindow(self.TgtMapWindow)
        self.SrcMapWindow.SetNamedCursor('cross')
        self.TgtMapWindow.SetNamedCursor('cross')
        # used to switch current map (combo box in toolbar)
        self.SrcMapWindow.mouseEntered.connect(
            lambda:
            self._setActiveMapWindow(self.SrcMapWindow))
        self.TgtMapWindow.mouseEntered.connect(
            lambda:
            self._setActiveMapWindow(self.TgtMapWindow))

        #
        # initialize region values
        #
        self._initMap(Map=self.SrcMap)
        self._initMap(Map=self.TgtMap)

        self.GetMapToolbar().SelectDefault()

        #
        # Bind various events
        #
        self.activemap.Bind(wx.EVT_CHOICE, self.OnUpdateActive)
        self.Bind(wx.EVT_SIZE, self.OnSize)

        #
        # Update fancy gui style
        #
        # AuiManager wants a CentrePane, workaround to get two equally sized
        # windows
        self.list = self.CreateGCPList()

        #self.SrcMapWindow.SetSize((300, 300))
        #self.TgtMapWindow.SetSize((300, 300))
        self.list.SetSize((100, 150))
        self._mgr.AddPane(self.list, wx.aui.AuiPaneInfo().
                          Name("gcplist").Caption(_("GCP List")).LeftDockable(False).
                          RightDockable(False).PinButton().FloatingSize((600, 200)).
                          CloseButton(False).DestroyOnClose(True).
                          Top().Layer(1).MinSize((200, 100)))
        self._mgr.AddPane(self.SrcMapWindow, wx.aui.AuiPaneInfo().
                          Name("source").Caption(_("Source Display")).Dockable(False).
                          CloseButton(False).DestroyOnClose(True).Floatable(False).
                          Centre())
        self._mgr.AddPane(self.TgtMapWindow, wx.aui.AuiPaneInfo().
                          Name("target").Caption(_("Target Display")).Dockable(False).
                          CloseButton(False).DestroyOnClose(True).Floatable(False).
                          Right().Layer(0))

        srcwidth, srcheight = self.SrcMapWindow.GetSize()
        tgtwidth, tgtheight = self.TgtMapWindow.GetSize()
        srcwidth = (srcwidth + tgtwidth) / 2
        self._mgr.GetPane("target").Hide()
        self._mgr.Update()
        self._mgr.GetPane("source").BestSize((srcwidth, srcheight))
        self._mgr.GetPane("target").BestSize((srcwidth, srcheight))
        if self.show_target:
            self._mgr.GetPane("target").Show()
        else:
            self.activemap.Enable(False)
        # needed by Mac OS, does not harm on Linux, breaks display on Windows
        if platform.system() != 'Windows':
            self._mgr.Update()

        #
        # Init print module and classes
        #
        self.printopt = PrintOptions(self, self.MapWindow)

        #
        # Initialization of digitization tool
        #
        self.digit = None

        # set active map
        self.MapWindow = self.SrcMapWindow
        self.Map = self.SrcMap

        # do not init zoom history here, that happens when zooming to map(s)

        #
        # Re-use dialogs
        #
        self.dialogs = {}
        self.dialogs['attributes'] = None
        self.dialogs['category'] = None
        self.dialogs['barscale'] = None
        self.dialogs['legend'] = None

        self.decorationDialog = None  # decoration/overlays

        # doing nice things in statusbar when other things are ready
        self.statusbarManager.Update()

    def _setUpMapWindow(self, mapWindow):
        # TODO: almost the smae implementation as for MapFrameBase (only names differ)
        # enable or disable zoom history tool
        mapWindow.zoomHistoryAvailable.connect(
            lambda:
            self.GetMapToolbar().Enable('zoomback', enable=True))
        mapWindow.zoomHistoryUnavailable.connect(
            lambda:
            self.GetMapToolbar().Enable('zoomback', enable=False))
        mapWindow.mouseMoving.connect(self.CoordinatesChanged)

    def AddToolbar(self, name):
        """Add defined toolbar to the window

        Currently known toolbars are:
         - 'map'     - basic map toolbar
         - 'gcpdisp' - GCP Manager, Display
         - 'gcpman'  - GCP Manager, points management
         - 'nviz'    - 3D view mode
        """
        # default toolbar
        if name == "map":
            self.toolbars['map'] = MapToolbar(self, self._toolSwitcher)

            self._mgr.AddPane(self.toolbars['map'],
                              wx.aui.AuiPaneInfo().
                              Name("maptoolbar").Caption(_("Map Toolbar")).
                              ToolbarPane().Top().
                              LeftDockable(False).RightDockable(False).
                              BottomDockable(False).TopDockable(True).
                              CloseButton(False).Layer(2).
                              BestSize((self.toolbars['map'].GetSize())))

        # GCP display
        elif name == "gcpdisp":
            self.toolbars['gcpdisp'] = GCPDisplayToolbar(
                self, self._toolSwitcher)

            self._mgr.AddPane(self.toolbars['gcpdisp'],
                              wx.aui.AuiPaneInfo().
                              Name("gcpdisplaytoolbar").Caption(_("GCP Display toolbar")).
                              ToolbarPane().Top().
                              LeftDockable(False).RightDockable(False).
                              BottomDockable(False).TopDockable(True).
                              CloseButton(False).Layer(2))

            if self.show_target == False:
                self.toolbars['gcpdisp'].Enable('zoommenu', enable=False)

            self.toolbars['gcpman'] = GCPManToolbar(self)

            self._mgr.AddPane(self.toolbars['gcpman'],
                              wx.aui.AuiPaneInfo().
                              Name("gcpmanagertoolbar").Caption(_("GCP Manager toolbar")).
                              ToolbarPane().Top().Row(1).
                              LeftDockable(False).RightDockable(False).
                              BottomDockable(False).TopDockable(True).
                              CloseButton(False).Layer(2))

        self._mgr.Update()

    def OnUpdateProgress(self, event):
        """
        Update progress bar info
        """
        self.GetProgressBar().UpdateProgress(event.layer, event.map)

        event.Skip()

    def OnFocus(self, event):
        """
        Change choicebook page to match display.
        Or set display for georectifying
        """
        # was in if layer manager but considering the state it was executed
        # always, moreover, there is no layer manager dependent code

        # in GCP Management, set focus to current MapWindow for mouse actions
        self.OnPointer(event)
        self.MapWindow.SetFocus()

        event.Skip()

    def OnDraw(self, event):
        """Re-display current map composition
        """
        self.MapWindow.UpdateMap(render=False)

    def OnRender(self, event):
        """Re-render map composition (each map layer)
        """
        # FIXME: remove qlayer code or use RemoveQueryLayer() now in mapdisp.frame
        # delete tmp map layers (queries)
        qlayer = self.Map.GetListOfLayers(name=globalvar.QUERYLAYER)
        for layer in qlayer:
            self.Map.DeleteLayer(layer)

        self.SrcMapWindow.UpdateMap(render=True)
        if self.show_target:
            self.TgtMapWindow.UpdateMap(render=True)

        # update statusbar
        self.StatusbarUpdate()

    def OnPointer(self, event):
        """Pointer button clicked
        """
        self.SrcMapWindow.SetModePointer()
        self.TgtMapWindow.SetModePointer()
        # change the default cursor
        self.SrcMapWindow.SetNamedCursor('cross')
        self.TgtMapWindow.SetNamedCursor('cross')

    def OnZoomIn(self, event):
        """Zoom in the map."""
        self.SrcMapWindow.SetModeZoomIn()
        self.TgtMapWindow.SetModeZoomIn()

    def OnZoomOut(self, event):
        """Zoom out the map."""
        self.SrcMapWindow.SetModeZoomOut()
        self.TgtMapWindow.SetModeZoomOut()

    def OnPan(self, event):
        """Panning, set mouse to drag"""
        self.SrcMapWindow.SetModePan()
        self.TgtMapWindow.SetModePan()

    def OnErase(self, event):
        """
        Erase the canvas
        """
        self.MapWindow.EraseMap()

        if self.MapWindow == self.SrcMapWindow:
            win = self.TgtMapWindow
        elif self.MapWindow == self.TgtMapWindow:
            win = self.SrcMapWindow

        win.EraseMap()

    def SaveToFile(self, event):
        """Save map to image
        """
        img = self.MapWindow.img
        if not img:
            GMessage(parent=self, message=_(
                "Nothing to render (empty map). Operation canceled."))
            return
        filetype, ltype = GetImageHandlers(img)

        # get size
        dlg = ImageSizeDialog(self)
        dlg.CentreOnParent()
        if dlg.ShowModal() != wx.ID_OK:
            dlg.Destroy()
            return
        width, height = dlg.GetValues()
        dlg.Destroy()

        # get filename
        dlg = wx.FileDialog(parent=self,
                            message=_("Choose a file name to save the image "
                                      "(no need to add extension)"),
                            wildcard=filetype,
                            style=wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT)

        if dlg.ShowModal() == wx.ID_OK:
            path = dlg.GetPath()
            if not path:
                dlg.Destroy()
                return

            base, ext = os.path.splitext(path)
            fileType = ltype[dlg.GetFilterIndex()]['type']
            extType = ltype[dlg.GetFilterIndex()]['ext']
            if ext != extType:
                path = base + '.' + extType

            self.MapWindow.SaveToFile(path, fileType,
                                      width, height)

        dlg.Destroy()

    def PrintMenu(self, event):
        """
        Print options and output menu for map display
        """
        point = wx.GetMousePosition()
        printmenu = Menu()
        # Add items to the menu
        setup = wx.MenuItem(printmenu, wx.ID_ANY, _('Page setup'))
        printmenu.AppendItem(setup)
        self.Bind(wx.EVT_MENU, self.printopt.OnPageSetup, setup)

        preview = wx.MenuItem(printmenu, wx.ID_ANY, _('Print preview'))
        printmenu.AppendItem(preview)
        self.Bind(wx.EVT_MENU, self.printopt.OnPrintPreview, preview)

        doprint = wx.MenuItem(printmenu, wx.ID_ANY, _('Print display'))
        printmenu.AppendItem(doprint)
        self.Bind(wx.EVT_MENU, self.printopt.OnDoPrint, doprint)

        # Popup the menu.  If an item is selected then its handler
        # will be called before PopupMenu returns.
        self.PopupMenu(printmenu)
        printmenu.Destroy()

    def OnZoomToRaster(self, event):
        """
        Set display extents to match selected raster map (ignore NULLs)
        """
        self.MapWindow.ZoomToMap(ignoreNulls=True)

    def OnZoomToSaved(self, event):
        """Set display geometry to match extents in
        saved region file
        """
        self.MapWindow.SetRegion(zoomOnly=True)

    def OnDisplayToWind(self, event):
        """Set computational region (WIND file) to match display
        extents
        """
        self.MapWindow.DisplayToWind()

    def SaveDisplayRegion(self, event):
        """Save display extents to named region file.
        """
        self.MapWindow.SaveDisplayRegion()

    def OnZoomMenu(self, event):
        """Popup Zoom menu
        """
        point = wx.GetMousePosition()
        zoommenu = Menu()
        # Add items to the menu

        zoomwind = wx.MenuItem(zoommenu, wx.ID_ANY, _(
            'Zoom to computational region (set with g.region)'))
        zoommenu.AppendItem(zoomwind)
        self.Bind(wx.EVT_MENU, self.OnZoomToWind, zoomwind)

        zoomdefault = wx.MenuItem(
            zoommenu, wx.ID_ANY, _('Zoom to default region'))
        zoommenu.AppendItem(zoomdefault)
        self.Bind(wx.EVT_MENU, self.OnZoomToDefault, zoomdefault)

        zoomsaved = wx.MenuItem(zoommenu, wx.ID_ANY, _('Zoom to saved region'))
        zoommenu.AppendItem(zoomsaved)
        self.Bind(wx.EVT_MENU, self.OnZoomToSaved, zoomsaved)

        savewind = wx.MenuItem(zoommenu, wx.ID_ANY, _(
            'Set computational region from display'))
        zoommenu.AppendItem(savewind)
        self.Bind(wx.EVT_MENU, self.OnDisplayToWind, savewind)

        savezoom = wx.MenuItem(zoommenu, wx.ID_ANY, _(
            'Save display geometry to named region'))
        zoommenu.AppendItem(savezoom)
        self.Bind(wx.EVT_MENU, self.SaveDisplayRegion, savezoom)

        # Popup the menu. If an item is selected then its handler
        # will be called before PopupMenu returns.
        self.PopupMenu(zoommenu)
        zoommenu.Destroy()

    def IsStandalone(self):
        """Check if Map display is standalone"""
        # we do not know and we do not care, so always False
        return True

    def GetLayerManager(self):
        """Get reference to Layer Manager

        :return: always None
        """
        return None

    def GetSrcWindow(self):
        return self.SrcMapWindow

    def GetTgtWindow(self):
        return self.TgtMapWindow

    def GetShowTarget(self):
        return self.show_target

    def GetMapToolbar(self):
        """Returns toolbar with zooming tools"""
        return self.toolbars['gcpdisp']

    def _setActiveMapWindow(self, mapWindow):
        if not self.MapWindow == mapWindow:
            self.MapWindow = mapWindow
            self.Map = mapWindow.Map
            self.UpdateActive(mapWindow)
            # needed for wingrass
            self.SetFocus()