Exemplo n.º 1
0
class SwipeMapFrame(DoubleMapFrame):

    def __init__(self, parent=None, giface=None,
                 title=_("GRASS GIS Map Swipe"), name="swipe", **kwargs):
        DoubleMapFrame.__init__(self, parent=parent, title=title, name=name,
                                firstMap=Map(), secondMap=Map(), **kwargs)
        Debug.msg(1, "SwipeMapFrame.__init__()")
        #
        # Add toolbars
        #
        self.AddToolbars()
        self._giface = giface
        #
        # create widgets
        #
        self.splitter = MapSplitter(parent=self, id=wx.ID_ANY)

        self.sliderH = wx.Slider(self, id=wx.ID_ANY, style=wx.SL_HORIZONTAL)
        self.sliderV = wx.Slider(self, id=wx.ID_ANY, style=wx.SL_VERTICAL)

        self.mapWindowProperties = MapWindowProperties()
        self.mapWindowProperties.setValuesFromUserSettings()
        self.mapWindowProperties.autoRenderChanged.connect(
            self.OnAutoRenderChanged)
        self.firstMapWindow = SwipeBufferedWindow(
            parent=self.splitter, giface=self._giface,
            properties=self.mapWindowProperties, Map=self.firstMap)
        self.secondMapWindow = SwipeBufferedWindow(
            parent=self.splitter, giface=self._giface,
            properties=self.mapWindowProperties, Map=self.secondMap)
        # bind query signal
        self.firstMapWindow.mapQueried.connect(self.Query)
        self.secondMapWindow.mapQueried.connect(self.Query)

        # bind tracking cursosr to mirror it
        self.firstMapWindow.Bind(
            wx.EVT_MOTION,
            lambda evt: self.TrackCursor(evt))
        self.secondMapWindow.Bind(
            wx.EVT_MOTION,
            lambda evt: self.TrackCursor(evt))

        self.MapWindow = self.firstMapWindow  # current by default
        self.firstMapWindow.zoomhistory = self.secondMapWindow.zoomhistory
        self.SetBindRegions(True)

        self._mode = 'swipe'

        self._addPanes()
        self._bindWindowsActivation()
        self._setUpMapWindow(self.firstMapWindow)
        self._setUpMapWindow(self.secondMapWindow)

        self._mgr.GetPane('sliderV').Hide()
        self._mgr.GetPane('sliderH').Show()
        self.slider = self.sliderH

        self.InitStatusbar()

        self.Bind(wx.EVT_SIZE, self.OnSize)
        self.Bind(wx.EVT_IDLE, self.OnIdle)
        self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)

        self.SetSize((800, 600))

        self._mgr.Update()

        self.rasters = {'first': None, 'second': None}

        self._inputDialog = None
        self._preferencesDialog = None
        self._queryDialog = None

        # default action in map toolbar
        self.GetMapToolbar().SelectDefault()

        self.resize = False

        wx.CallAfter(self.CallAfterInit)

    def TrackCursor(self, event):
        """Track cursor in one window and show cross in the other.

        Only for mirror mode.
        """
        if self._mode == 'swipe':
            event.Skip()
            return
        coords = event.GetPosition()
        if event.GetId() == self.secondMapWindow.GetId():
            self.firstMapWindow.DrawMouseCursor(coords=coords)
        else:
            self.secondMapWindow.DrawMouseCursor(coords=coords)

        event.Skip()

    def ActivateFirstMap(self, event=None):
        """Switch tracking direction"""
        super(SwipeMapFrame, self).ActivateFirstMap(event)

        self.firstMapWindow.ClearLines()
        self.firstMapWindow.Refresh()

    def ActivateSecondMap(self, event=None):
        """Switch tracking direction"""
        super(SwipeMapFrame, self).ActivateSecondMap(event)

        self.secondMapWindow.ClearLines()
        self.secondMapWindow.Refresh()

    def CallAfterInit(self):
        self.InitSliderBindings()
        self.splitter.SplitVertically(
            self.firstMapWindow, self.secondMapWindow, 0)
        self.splitter.Init()
        if not (self.rasters['first'] and self.rasters['second']):
            self.OnSelectLayers(event=None)

    def InitStatusbar(self):
        """Init statusbar (default items)."""
        # items for choice
        self.statusbarItems = [sb.SbCoordinates,
                               sb.SbRegionExtent,
                               sb.SbCompRegionExtent,
                               sb.SbShowRegion,
                               sb.SbAlignExtent,
                               sb.SbResolution,
                               sb.SbDisplayGeometry,
                               sb.SbMapScale,
                               sb.SbGoTo,
                               sb.SbProjection]

        # create statusbar and its manager
        statusbar = self.CreateStatusBar(number=4, style=0)
        statusbar.SetMinHeight(24)
        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))
        sbRender = sb.SbRender(self, statusbar=statusbar, position=3)
        self.statusbarManager.AddStatusbarItem(sbRender)

        self.statusbarManager.Update()

    def ResetSlider(self):
        if self.splitter.GetSplitMode() == wx.SPLIT_VERTICAL:
            size = self.splitter.GetSize()[0]
        else:
            size = self.splitter.GetSize()[1]
        self.slider.SetRange(0, size)
        self.slider.SetValue(self.splitter.GetSashPosition())

    def InitSliderBindings(self):
        self.sliderH.Bind(wx.EVT_SPIN, self.OnSliderPositionChanging)
        self.sliderH.Bind(
            wx.EVT_SCROLL_THUMBRELEASE,
            self.OnSliderPositionChanged)
        self.sliderV.Bind(wx.EVT_SPIN, self.OnSliderPositionChanging)
        self.sliderV.Bind(
            wx.EVT_SCROLL_THUMBRELEASE,
            self.OnSliderPositionChanged)
        self.splitter.Bind(
            wx.EVT_SPLITTER_SASH_POS_CHANGING,
            self.OnSashChanging)
        self.splitter.Bind(
            wx.EVT_SPLITTER_SASH_POS_CHANGED,
            self.OnSashChanged)

    def OnSliderPositionChanging(self, event):
        """Slider changes its position, sash must be moved too."""
        Debug.msg(5, "SwipeMapFrame.OnSliderPositionChanging()")

        self.GetFirstWindow().movingSash = True
        self.GetSecondWindow().movingSash = True
        pos = event.GetPosition()

        if pos > 0:
            self.splitter.SetSashPosition(pos)
            self.splitter.OnSashChanging(None)

    def OnSliderPositionChanged(self, event):
        """Slider position changed, sash must be moved too."""
        Debug.msg(5, "SwipeMapFrame.OnSliderPositionChanged()")

        self.splitter.SetSashPosition(event.GetPosition())
        self.splitter.OnSashChanged(None)

    def OnSashChanging(self, event):
        """Sash position is changing, slider must be moved too."""
        Debug.msg(5, "SwipeMapFrame.OnSashChanging()")

        self.slider.SetValue(self.splitter.GetSashPosition())
        event.Skip()

    def OnSashChanged(self, event):
        """Sash position changed, slider must be moved too."""
        Debug.msg(5, "SwipeMapFrame.OnSashChanged()")

        self.OnSashChanging(event)
        event.Skip()

    def OnSize(self, event):
        Debug.msg(4, "SwipeMapFrame.OnSize()")
        self.resize = grass.clock()
        super(SwipeMapFrame, self).OnSize(event)

    def OnIdle(self, event):
        if self.resize and grass.clock() - self.resize > 0.2:
            w1 = self.GetFirstWindow()
            w2 = self.GetSecondWindow()

            sizeAll = self.splitter.GetSize()
            w1.SetClientSize(sizeAll)
            w2.SetClientSize(sizeAll)

            w1.OnSize(event)
            w2.OnSize(event)
            self.ResetSlider()
            self.resize = False

    def OnAutoRenderChanged(self, value):
        """Auto rendering state changed."""
        style = self.splitter.GetWindowStyle()
        style ^= wx.SP_LIVE_UPDATE
        self.splitter.SetWindowStyle(style)

    def AddToolbars(self):
        """Add defined toolbar to the window

        Currently known toolbars are:
         - 'swipeMap'          - basic map toolbar
         - 'swipeMain'         - swipe functionality
         - 'swipeMisc'         - misc (settings, help)
        """
        self.toolbars["swipeMap"] = SwipeMapToolbar(self, self._toolSwitcher)
        self._mgr.AddPane(self.toolbars["swipeMap"],
                          wx.aui.AuiPaneInfo().
                          Name("swipeMap").Caption(_("Map Toolbar")).
                          ToolbarPane().Top().
                          LeftDockable(False).RightDockable(False).
                          BottomDockable(False).TopDockable(True).
                          CloseButton(False).Layer(2).Row(1).Position(1).
                          BestSize((self.toolbars["swipeMap"].GetBestSize())))

        self.toolbars["swipeMain"] = SwipeMainToolbar(self)

        self._mgr.AddPane(self.toolbars["swipeMain"],
                          wx.aui.AuiPaneInfo().
                          Name("swipeMain").Caption(_("Main Toolbar")).
                          ToolbarPane().Top().
                          LeftDockable(False).RightDockable(False).
                          BottomDockable(False).TopDockable(True).
                          CloseButton(False).Layer(2).Row(1).Position(0).
                          BestSize((self.toolbars["swipeMain"].GetBestSize())))

        self.toolbars["swipeMisc"] = SwipeMiscToolbar(self)

        self._mgr.AddPane(self.toolbars["swipeMisc"],
                          wx.aui.AuiPaneInfo().
                          Name("swipeMisc").Caption(_("Misc Toolbar")).
                          ToolbarPane().Top().
                          LeftDockable(False).RightDockable(False).
                          BottomDockable(False).TopDockable(True).
                          CloseButton(False).Layer(2).Row(1).Position(2).
                          BestSize((self.toolbars["swipeMisc"].GetBestSize())))

    def _addPanes(self):
        """Add splitter window and sliders to aui manager"""
        # splitter window
        self._mgr.AddPane(self.splitter, wx.aui.AuiPaneInfo().
                          Name('splitter').CaptionVisible(False).PaneBorder(True).
                          Dockable(False).Floatable(False).CloseButton(False).
                          Center().Layer(1).BestSize((self.splitter.GetBestSize())))

        # sliders
        self._mgr.AddPane(self.sliderH, wx.aui.AuiPaneInfo().
                          Name('sliderH').CaptionVisible(False).PaneBorder(False).
                          CloseButton(False).Gripper(True).GripperTop(False).
                          BottomDockable(True).TopDockable(True).
                          LeftDockable(False).RightDockable(False).
                          Bottom().Layer(1).BestSize((self.sliderH.GetBestSize())))

        self._mgr.AddPane(self.sliderV, wx.aui.AuiPaneInfo().
                          Name('sliderV').CaptionVisible(False).PaneBorder(False).
                          CloseButton(False).Gripper(True).GripperTop(True).
                          BottomDockable(False).TopDockable(False).
                          LeftDockable(True).RightDockable(True).
                          Right().Layer(1).BestSize((self.sliderV.GetBestSize())))

    def ZoomToMap(self):
        """
        Set display extents to match selected raster (including NULLs)
        or vector map.
        """
        layers = []
        if self.rasters['first']:
            layers += self.firstMap.GetListOfLayers()
        if self.rasters['second']:
            layers += self.secondMap.GetListOfLayers()

        if layers:
            self.GetFirstWindow().ZoomToMap(layers=layers)
            self.GetSecondWindow().ZoomToMap(layers=layers)

    def OnZoomToMap(self, event):
        """Zoom to map"""
        self.ZoomToMap()

    def OnZoomBack(self, event):
        self.GetFirstWindow().ZoomBack()
        self.secondMap.region = self.firstMap.region
        self.Render(self.GetSecondWindow())

    def OnSelectLayers(self, event):
        if self._inputDialog is None:
            dlg = SwipeMapDialog(self, first=self.rasters['first'],
                                 second=self.rasters['second'],
                                 firstLayerList=None, secondLayerList=None)
            dlg.applyChanges.connect(self.OnApplyInputChanges)
            # connect to convertor object to convert to Map
            # store reference to convertor is needed otherwise it would be
            # discarded
            self._firstConverter = self._connectSimpleLmgr(
                dlg.GetFirstSimpleLmgr(), self.GetFirstMap())
            self._secondConverter = self._connectSimpleLmgr(
                dlg.GetSecondSimpleLmgr(), self.GetSecondMap())
            self._inputDialog = dlg
            dlg.CentreOnParent()
            dlg.Show()
        else:
            if self._inputDialog.IsShown():
                self._inputDialog.Raise()
                self._inputDialog.SetFocus()
            else:
                self._inputDialog.Show()

    def _connectSimpleLmgr(self, lmgr, renderer):
        converter = LayerListToRendererConverter(renderer)
        lmgr.opacityChanged.connect(converter.ChangeLayerOpacity)
        lmgr.cmdChanged.connect(converter.ChangeLayerCmd)
        lmgr.layerAdded.connect(converter.AddLayer)
        lmgr.layerRemoved.connect(converter.RemoveLayer)
        lmgr.layerActivated.connect(converter.ChangeLayerActive)
        lmgr.layerMovedUp.connect(converter.MoveLayerUp)
        lmgr.layerMovedDown.connect(converter.MoveLayerDown)
        lmgr.anyChange.connect(self._simpleLmgrChanged)
        return converter

    def _simpleLmgrChanged(self):
        if self.IsAutoRendered():
            self.OnRender(event=None)

    def OnApplyInputChanges(self):
        first, second = self._inputDialog.GetValues()
        if self._inputDialog.IsSimpleMode():
            self.rasters['first'], self.rasters['second'] = first, second
            res1 = self.SetFirstRaster(name=self.rasters['first'])
            res2 = self.SetSecondRaster(name=self.rasters['second'])
            if not (res1 and res2) and first and second:
                message = ''
                if not res1:
                    message += _("Map <%s> not found. ") % self.rasters[
                        'first']
                if not res2:
                    message += _("Map <%s> not found.") % self.rasters[
                        'second']
                    GError(parent=self, message=message)
                    return
            self.ZoomToMap()
        else:
            LayerListToRendererConverter(self.GetFirstMap()).ConvertAll(first)
            LayerListToRendererConverter(
                self.GetSecondMap()).ConvertAll(second)

        self.SetRasterNames()
        if self.IsAutoRendered():
            self.OnRender(event=None)

    def SetFirstRaster(self, name):
        """Set raster map to first Map"""
        raster = grass.find_file(name=name, element='cell')
        if raster['fullname']:
            self.rasters['first'] = raster['fullname']
            self.SetLayer(
                name=raster['fullname'],
                mapInstance=self.GetFirstMap())
            return True

        return False

    def SetSecondRaster(self, name):
        """Set raster map to second Map"""
        raster = grass.find_file(name=name, element='cell')
        if raster['fullname']:
            self.rasters['second'] = raster['fullname']
            self.SetLayer(
                name=raster['fullname'],
                mapInstance=self.GetSecondMap())
            return True

        return False

    def SetLayer(self, name, mapInstance):
        """Sets layer in Map.

        :param name: layer (raster) name
        """
        Debug.msg(3, "SwipeMapFrame.SetLayer(): name=%s" % name)

        # this simple application enables to keep only one raster
        mapInstance.DeleteAllLayers()
        cmdlist = ['d.rast', 'map=%s' % name]
        # add layer to Map instance (core.render)
        newLayer = mapInstance.AddLayer(
            ltype='raster',
            command=cmdlist,
            active=True,
            name=name,
            hidden=False,
            opacity=1.0,
            render=True)

    def OnSwitchWindows(self, event):
        """Switch windows position."""
        Debug.msg(3, "SwipeMapFrame.OnSwitchWindows()")

        splitter = self.splitter
        w1, w2 = splitter.GetWindow1(), splitter.GetWindow2()
        splitter.ReplaceWindow(w1, w2)
        splitter.ReplaceWindow(w2, w1)
        # self.OnSize(None)
        splitter.OnSashChanged(None)

    def _saveToFile(self, fileName, fileType):
        """Creates composite image by rendering both images and
        pasting them into the new one.

        .. todo::
            specify size of the new image (problem is inaccurate scaling)
        .. todo::
            make dividing line width and color optional
        """
        w1 = self.splitter.GetWindow1()
        w2 = self.splitter.GetWindow2()
        lineWidth = 1
        # render to temporary files
        filename1 = grass.tempfile(False) + '1'
        filename2 = grass.tempfile(False) + '2'
        width, height = self.splitter.GetClientSize()
        if self._mode == 'swipe':
            x, y = w2.GetImageCoords()
            w1.SaveToFile(filename1, fileType, width, height)
            w2.SaveToFile(filename2, fileType, width, height)
        else:
            fw, fh = w1.GetClientSize()
            w1.SaveToFile(filename1, fileType, fw, fh)
            sw, sh = w2.GetClientSize()
            w2.SaveToFile(filename2, fileType, sw, sh)

        # create empty white image  - needed for line
        im = wx.EmptyImage(width, height)
        im.Replace(0, 0, 0, 255, 255, 255)

        # paste images
        if self._mode == 'swipe':
            if self.splitter.GetSplitMode() == wx.SPLIT_HORIZONTAL:
                im1 = wx.Image(filename1).GetSubImage((0, 0, width, -y))
                im.Paste(im1, 0, 0)
                im.Paste(wx.Image(filename2), -x, -y + lineWidth)
            else:
                im1 = wx.Image(filename1).GetSubImage((0, 0, -x, height))
                im.Paste(im1, 0, 0)
                im.Paste(wx.Image(filename2), -x + lineWidth, -y)
        else:
            if self.splitter.GetSplitMode() == wx.SPLIT_HORIZONTAL:
                im1 = wx.Image(filename1)
                im.Paste(im1, 0, 0)
                im.Paste(wx.Image(filename2), 0, fh + lineWidth)
            else:
                im1 = wx.Image(filename1)
                im.Paste(im1, 0, 0)
                im.Paste(wx.Image(filename2), fw + lineWidth, 0)
        im.SaveFile(fileName, fileType)

        # remove temporary files
        grass.try_remove(filename1)
        grass.try_remove(filename2)

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

        # 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._saveToFile(path, fileType)

        dlg.Destroy()

    def OnSwitchOrientation(self, event):
        """Switch orientation of the sash."""
        Debug.msg(3, "SwipeMapFrame.OnSwitchOrientation()")

        splitter = self.splitter
        splitter.Unsplit()
        if splitter.GetSplitMode() == wx.SPLIT_HORIZONTAL:
            splitter.SplitVertically(
                self.firstMapWindow, self.secondMapWindow, 0)
            self.slider = self.sliderH
            if self._mode == 'swipe':
                self._mgr.GetPane('sliderH').Show()
                self._mgr.GetPane('sliderV').Hide()
        else:
            splitter.SplitHorizontally(
                self.firstMapWindow, self.secondMapWindow, 0)
            self.slider = self.sliderV
            if self._mode == 'swipe':
                self._mgr.GetPane('sliderV').Show()
                self._mgr.GetPane('sliderH').Hide()
        self._mgr.Update()
        splitter.OnSashChanged(None)
        self.OnSize(None)
        self.SetRasterNames()

    def OnAddText(self, event):
        """Double click on text overlay

        So far not implemented.
        """
        pass

    def SetViewMode(self, mode):
        """Sets view mode.

        :param mode: view mode ('swipe', 'mirror')
        """
        if self._mode == mode:
            return
        self._mode = mode
        self.toolbars['swipeMain'].SetMode(mode)
        # set window mode
        self.GetFirstWindow().SetMode(mode)
        self.GetSecondWindow().SetMode(mode)
        # hide/show slider
        if self.splitter.GetSplitMode() == wx.SPLIT_HORIZONTAL:
            self._mgr.GetPane('sliderV').Show(mode == 'swipe')
            size = self.splitter.GetSize()[1] / 2
        else:
            self._mgr.GetPane('sliderH').Show(mode == 'swipe')
            size = self.splitter.GetSize()[0] / 2
        # set sash in the middle
        self.splitter.SetSashPosition(size)
        self.slider.SetValue(size)
        self._mgr.Update()
        # enable / disable sash
        self.splitter.EnableSash(mode == 'swipe')
        # hack to make it work
        self.splitter.OnSashChanged(None)
        self.SendSizeEvent()

    def SetRasterNames(self):
        if not self._inputDialog or self._inputDialog.IsSimpleMode():
            if self.rasters['first']:
                self.GetFirstWindow().SetRasterNameText(
                    self.rasters['first'], 101)
            if self.rasters['second']:
                self.GetSecondWindow().SetRasterNameText(
                    self.rasters['second'], 102)
        else:
            self.GetFirstWindow().SetRasterNameText('', 101)
            self.GetSecondWindow().SetRasterNameText('', 102)

    def Query(self, x, y):
        """Query active layers from both mapwindows.

        :param x,y: coordinates
        """
        rasters = (
            [layer.GetName()
             for layer in self.GetFirstMap().GetListOfLayers(
                 ltype='raster', active=True)],
            [layer.GetName()
             for layer in self.GetSecondMap().GetListOfLayers(
                 ltype='raster', active=True)])
        vectors = (
            [layer.GetName()
             for layer in self.GetFirstMap().GetListOfLayers(
                 ltype='vector', active=True)],
            [layer.GetName()
             for layer in self.GetSecondMap().GetListOfLayers(
                 ltype='vector', active=True)])

        if not (rasters[0] + rasters[1] + vectors[0] + vectors[1]):
            GMessage(
                parent=self,
                message=_(
                    'No raster or vector map layer selected for querying.'))
            return

        # set query snap distance for v.what at map unit equivalent of 10
        # pixels
        qdist = 10.0 * (
            (self.GetFirstMap().region['e'] - self.GetFirstMap().region['w']) /
            self.GetFirstMap().width)

        east, north = self.GetFirstWindow().Pixel2Cell((x, y))

        # use display region settings instead of computation region settings
        self.tmpreg = os.getenv("GRASS_REGION")
        os.environ["GRASS_REGION"] = self.GetFirstMap(
        ).SetRegion(windres=False)

        result = []
        if rasters[0]:
            result.extend(
                grass.raster_what(
                    map=rasters[0],
                    coord=(east, north),
                    localized=True))
        if vectors[0]:
            result.extend(
                grass.vector_what(
                    map=vectors[0],
                    coord=(east, north),
                    distance=qdist))
        if rasters[1]:
            result.extend(
                grass.raster_what(
                    map=rasters[1],
                    coord=(east, north),
                    localized=True))
        if vectors[1]:
            result.extend(
                grass.vector_what(
                    map=vectors[1],
                    coord=(east, north),
                    distance=qdist))

        self._QueryMapDone()

        result = PrepareQueryResults(coordinates=(east, north), result=result)
        if self._queryDialog:
            self._queryDialog.Raise()
            self._queryDialog.SetData(result)
        else:
            self._queryDialog = QueryDialog(parent=self, data=result)
            self._queryDialog.Bind(wx.EVT_CLOSE, self._oncloseQueryDialog)
            self._queryDialog.redirectOutput.connect(
                lambda output: self._giface.WriteLog(output))
            self._queryDialog.Show()

    def _oncloseQueryDialog(self, event):
        self._queryDialog = None
        event.Skip()

    def _QueryMapDone(self):
        """Restore settings after querying (restore GRASS_REGION)
        """
        if hasattr(self, "tmpreg"):
            if self.tmpreg:
                os.environ["GRASS_REGION"] = self.tmpreg
            elif 'GRASS_REGION' in os.environ:
                del os.environ["GRASS_REGION"]
        elif 'GRASS_REGION' in os.environ:
            del os.environ["GRASS_REGION"]

        if hasattr(self, "tmpreg"):
            del self.tmpreg

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

    def IsStandalone(self):
        """Since we do not need layer manager, we are standalone"""
        return True

    def OnHelp(self, event):
        self._giface.Help(entry='wxGUI.mapswipe')

    def OnPreferences(self, event):
        if not self._preferencesDialog:
            dlg = PreferencesDialog(parent=self, giface=self._giface)
            self._preferencesDialog = dlg
            self._preferencesDialog.CenterOnParent()

        self._preferencesDialog.ShowModal()

    def OnCloseWindow(self, event):
        self.GetFirstMap().Clean()
        self.GetSecondMap().Clean()
        self._mgr.UnInit()
        if self._inputDialog:
            self._inputDialog.UnInit()
        self.Destroy()
Exemplo n.º 2
0
    def __init__(self, parent=None, giface=None,
                 title=_("GRASS GIS Map Swipe"), name="swipe", **kwargs):
        DoubleMapFrame.__init__(self, parent=parent, title=title, name=name,
                                firstMap=Map(), secondMap=Map(), **kwargs)
        Debug.msg(1, "SwipeMapFrame.__init__()")
        #
        # Add toolbars
        #
        self.AddToolbars()
        self._giface = giface
        #
        # create widgets
        #
        self.splitter = MapSplitter(parent=self, id=wx.ID_ANY)

        self.sliderH = wx.Slider(self, id=wx.ID_ANY, style=wx.SL_HORIZONTAL)
        self.sliderV = wx.Slider(self, id=wx.ID_ANY, style=wx.SL_VERTICAL)

        self.mapWindowProperties = MapWindowProperties()
        self.mapWindowProperties.setValuesFromUserSettings()
        self.mapWindowProperties.autoRenderChanged.connect(
            self.OnAutoRenderChanged)
        self.firstMapWindow = SwipeBufferedWindow(
            parent=self.splitter, giface=self._giface,
            properties=self.mapWindowProperties, Map=self.firstMap)
        self.secondMapWindow = SwipeBufferedWindow(
            parent=self.splitter, giface=self._giface,
            properties=self.mapWindowProperties, Map=self.secondMap)
        # bind query signal
        self.firstMapWindow.mapQueried.connect(self.Query)
        self.secondMapWindow.mapQueried.connect(self.Query)

        # bind tracking cursosr to mirror it
        self.firstMapWindow.Bind(
            wx.EVT_MOTION,
            lambda evt: self.TrackCursor(evt))
        self.secondMapWindow.Bind(
            wx.EVT_MOTION,
            lambda evt: self.TrackCursor(evt))

        self.MapWindow = self.firstMapWindow  # current by default
        self.firstMapWindow.zoomhistory = self.secondMapWindow.zoomhistory
        self.SetBindRegions(True)

        self._mode = 'swipe'

        self._addPanes()
        self._bindWindowsActivation()
        self._setUpMapWindow(self.firstMapWindow)
        self._setUpMapWindow(self.secondMapWindow)

        self._mgr.GetPane('sliderV').Hide()
        self._mgr.GetPane('sliderH').Show()
        self.slider = self.sliderH

        self.InitStatusbar()

        self.Bind(wx.EVT_SIZE, self.OnSize)
        self.Bind(wx.EVT_IDLE, self.OnIdle)
        self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)

        self.SetSize((800, 600))

        self._mgr.Update()

        self.rasters = {'first': None, 'second': None}

        self._inputDialog = None
        self._preferencesDialog = None
        self._queryDialog = None

        # default action in map toolbar
        self.GetMapToolbar().SelectDefault()

        self.resize = False

        wx.CallAfter(self.CallAfterInit)
Exemplo n.º 3
0
    def __init__(
        self, parent=None, giface=None, title=_("Map Swipe"), name="swipe", **kwargs
    ):
        DoubleMapPanel.__init__(
            self,
            parent=parent,
            title=title,
            name=name,
            firstMap=Map(),
            secondMap=Map(),
            **kwargs,
        )
        Debug.msg(1, "SwipeMapPanel.__init__()")
        #
        # Add toolbars
        #
        for name in ("swipeMain", "swipeMap", "swipeMisc"):
            self.AddToolbar(name)
        self._mgr.Update()

        self._giface = giface
        #
        # create widgets
        #
        self.splitter = MapSplitter(parent=self, id=wx.ID_ANY)

        self.sliderH = Slider(self, id=wx.ID_ANY, style=wx.SL_HORIZONTAL)
        self.sliderV = Slider(self, id=wx.ID_ANY, style=wx.SL_VERTICAL)

        self.mapWindowProperties.autoRenderChanged.connect(self.OnAutoRenderChanged)
        self.firstMapWindow = SwipeBufferedWindow(
            parent=self.splitter,
            giface=self._giface,
            properties=self.mapWindowProperties,
            Map=self.firstMap,
        )
        self.secondMapWindow = SwipeBufferedWindow(
            parent=self.splitter,
            giface=self._giface,
            properties=self.mapWindowProperties,
            Map=self.secondMap,
        )
        # bind query signal
        self.firstMapWindow.mapQueried.connect(self.Query)
        self.secondMapWindow.mapQueried.connect(self.Query)

        # bind tracking cursosr to mirror it
        self.firstMapWindow.Bind(wx.EVT_MOTION, lambda evt: self.TrackCursor(evt))
        self.secondMapWindow.Bind(wx.EVT_MOTION, lambda evt: self.TrackCursor(evt))

        self.MapWindow = self.firstMapWindow  # current by default
        self.firstMapWindow.zoomhistory = self.secondMapWindow.zoomhistory
        self.SetBindRegions(True)

        self._mode = "swipe"

        # statusbar items
        statusbarItems = [
            sb.SbCoordinates,
            sb.SbRegionExtent,
            sb.SbCompRegionExtent,
            sb.SbDisplayGeometry,
            sb.SbMapScale,
            sb.SbGoTo,
        ]
        self.statusbar = self.CreateStatusbar(statusbarItems)

        self._addPanes()
        self._bindWindowsActivation()
        self._setUpMapWindow(self.firstMapWindow)
        self._setUpMapWindow(self.secondMapWindow)

        self._mgr.GetPane("sliderV").Hide()
        self._mgr.GetPane("sliderH").Show()
        self.slider = self.sliderH

        self.Bind(wx.EVT_SIZE, self.OnSize)
        self.Bind(wx.EVT_IDLE, self.OnIdle)

        self.SetSize((800, 600))

        self._mgr.Update()

        self.rasters = {"first": None, "second": None}

        self._inputDialog = None
        self._preferencesDialog = None
        self._queryDialog = None

        # default action in map toolbar
        self.GetMapToolbar().SelectDefault()

        self.resize = False

        wx.CallAfter(self.CallAfterInit)