def test_convert_group_to_group_layer(self):
"""
Test converting a QgsLayerTreeGroup to a QgsGroupLayer
"""
group_node = QgsLayerTreeGroup()
options = QgsGroupLayer.LayerOptions(QgsCoordinateTransformContext())
group_layer = group_node.convertToGroupLayer(options)
self.assertFalse(group_layer.childLayers())
self.assertEqual(group_node.groupLayer(), group_layer)
# if a group layer is already assigned, convertToGroupLayer should do nothing
self.assertIsNone(group_node.convertToGroupLayer(options))
group_node.setGroupLayer(None)
# add some child layers to node
layer = QgsVectorLayer("Point?field=fldtxt:string", "layer1", "memory")
group_node.addLayer(layer)
layer2 = QgsVectorLayer("Point?field=fldtxt:string", "layer2",
"memory")
group_node.addLayer(layer2)
group_layer = group_node.convertToGroupLayer(options)
self.assertEqual(group_layer.childLayers(), [layer2, layer])
self.assertEqual(group_node.groupLayer(), group_layer)
def make(self, composition, inomen, mapAreaLayer, showLayers):
# Cleanup
self.deleteGroups(['articulation'])
mapIDsToBeDisplayed = []
instance = QgsProject.instance()
# Creating the articulation frame
gridLayer = self.createGridLayer(inomen)
self.loadStyleToGridLayer(gridLayer)
instance.addMapLayer(gridLayer, False)
mapIDsToBeDisplayed.append(gridLayer.id())
# Creating a copy of mapAreaLayer
mapAreaLayer = self.createVectorLayerFromIter('articulationMapArea', mapAreaLayer.getFeatures())
self.loadStyleToLayer(mapAreaLayer, self.stylesFolder / 'mapExtentStyle.qml')
instance.addMapLayer(mapAreaLayer, False)
mapIDsToBeDisplayed.append(mapAreaLayer.id())
# Updates composition
self.updateMapItem(composition, gridLayer, mapAreaLayer)
if showLayers:
articulationNodeGroup = QgsLayerTreeGroup('articulation')
articulationNodeGroup.setItemVisibilityChecked(False)
for layer in (gridLayer, mapAreaLayer):
articulationNodeGroup.addLayer(layer)
root = instance.layerTreeRoot()
root.addChildNode(articulationNodeGroup)
return mapIDsToBeDisplayed
def make(self,
composition,
mapExtentsLayer,
mapExtents,
layers,
showLayers=False):
mapLayers = []
self.deleteGroups(['map'])
instance = QgsProject.instance()
# Setting up grid layer
mapExtent = self.getExtent(mapExtents)
gridLayer, mapExtentsTransformed = self.createLayerForGrid(
mapExtentsLayer, mapExtents)
self.applyStyleGridLayer(gridLayer)
gridLayer.triggerRepaint()
instance.addMapLayer(gridLayer, False)
# Setting up aux_label, which is reprojected to mapLayers
crs = next(iter(layers['map'])).crs()
copyLabel = self.cloneVectorLayerReproject(gridLayer, 'aux_label', crs)
copyLabelStyle = Path(
__file__).parent.parent / 'styles' / 'grid' / 'aux_label.qml'
copyLabel.loadNamedStyle(str(copyLabelStyle))
instance.addMapLayer(copyLabel, False)
# Setting up aux_moldura
copy = self.cloneVectorLayer(gridLayer, 'aux_moldura')
copyStyle = Path(
__file__).parent.parent / 'styles' / 'grid' / 'style.qml'
copy.loadNamedStyle(str(copyStyle))
instance.addMapLayer(copy, False)
# Setting up mask layer
maskLayer = self.createMaskLayer(mapExtents)
instance.addMapLayer(maskLayer, False)
mapLayers.extend((copy.id(), copyLabel.id(), gridLayer.id(),
maskLayer.id(), *layers['id_map']))
layersToComposition = [
gridLayer, maskLayer, copy, copyLabel, *layers['map'],
*layers['images']
]
self.updateMapItem(composition, mapExtent, mapExtentsTransformed,
gridLayer, layersToComposition)
if showLayers:
mapGroupNode = QgsLayerTreeGroup('map')
mapGroupNode.setItemVisibilityChecked(False)
for lyr in layersToComposition:
mapGroupNode.addLayer(lyr)
root = QgsProject.instance().layerTreeRoot()
root.addChildNode(mapGroupNode)
return mapLayers
def make(self, composition, mapArea, showLayers=False, isInternational=False):
# Cleanup
self.deleteGroups(['divisao'])
mapLayers = []
# Inserting necessary layers
divisionGroupNode = QgsLayerTreeGroup('divisao')
divisionGroupNode.setItemVisibilityChecked(False)
layerCountyArea, layerCountyLine, layerStateLine, layerCountryArea, layerCountryLine, layerOcean = self.createLayersGroup()
mapLayers.extend([
layerCountyArea.id(),layerCountyLine.id(), layerStateLine.id(), layerOcean.id(), layerCountryArea.id(), layerCountryLine.id()])
# Getting map extents
gridBound = mapArea.geometry().boundingBox()
gridRectangleLayer = self.createGridRectangle(gridBound, 'divisionMapArea')
mapLayers.append(gridRectangleLayer.id())
# Get map extent for intersections
# TODO: Check possible refactor on getExtent
outerExtents = self.getExtent(gridBound, mapArea)
orderedCountiesByCentroidDistance, orderedCountiesNamesByArea = self.getIntersections(
layerCountyArea, outerExtents, mapArea, isInternational)
# Labeling counties
self.setStyles(layerCountyArea, orderedCountiesByCentroidDistance, orderedCountiesNamesByArea)
# Inserting counties table
html_tabledata = self.customcreateHtmlTableData(orderedCountiesNamesByArea)
self.setMunicipiosTable(composition, html_tabledata)
if not isInternational:
self.hideInternationalCouties(layerCountryArea)
# self.unsetLabel(layerCountry)
# Update map in correct sequence
layersToShow = (
gridRectangleLayer, layerOcean, layerCountryLine, layerCountryArea, layerStateLine, layerCountyLine, layerCountyArea)
for layer in layersToShow:
QgsProject.instance().addMapLayer(layer, False)
divisionGroupNode.addLayer(layer)
if showLayers:
root = QgsProject.instance().layerTreeRoot()
root.addChildNode(divisionGroupNode)
self.updateMapItem(composition, outerExtents, layersToShow)
return mapLayers
def test_group_layer_updates_from_node(self):
"""
Test that group layer child layers are synced correctly from the group node
"""
group_node = QgsLayerTreeGroup('my group')
options = QgsGroupLayer.LayerOptions(QgsCoordinateTransformContext())
group_layer = group_node.convertToGroupLayer(options)
self.assertFalse(group_layer.childLayers())
layer = QgsVectorLayer("Point?field=fldtxt:string", "layer1", "memory")
group_node.addLayer(layer)
self.assertEqual(group_layer.childLayers(), [layer])
layer2 = QgsVectorLayer("Point?field=fldtxt:string", "layer2",
"memory")
group_node.insertLayer(0, layer2)
self.assertEqual(group_layer.childLayers(), [layer, layer2])
layer3 = QgsVectorLayer("Point?field=fldtxt:string", "layer3",
"memory")
layer4 = QgsVectorLayer("Point?field=fldtxt:string", "layer4",
"memory")
layer3_node = QgsLayerTreeLayer(layer3)
layer4_node = QgsLayerTreeLayer(layer4)
group_node.insertChildNodes(1, [layer3_node, layer4_node])
self.assertEqual(group_layer.childLayers(),
[layer, layer4, layer3, layer2])
layer5 = QgsVectorLayer("Point?field=fldtxt:string", "layer5",
"memory")
layer5_node = QgsLayerTreeLayer(layer5)
group_node.addChildNode(layer5_node)
self.assertEqual(group_layer.childLayers(),
[layer5, layer, layer4, layer3, layer2])
group_node.removeChildNode(layer3_node)
self.assertEqual(group_layer.childLayers(),
[layer5, layer, layer4, layer2])
group_node.removeLayer(layer)
self.assertEqual(group_layer.childLayers(), [layer5, layer4, layer2])
group_node.removeChildren(0, 2)
self.assertEqual(group_layer.childLayers(), [layer5])
group_node.removeAllChildren()
self.assertEqual(group_layer.childLayers(), [])
def make(self,
composition,
mapAreaFeature,
showLayers=False,
isInternational=False):
# Cleanup
self.deleteGroups(['localizacao'])
mapLayers = []
instance = QgsProject.instance()
# Creating layer for mapArea
mapAreaBoundingBox = mapAreaFeature.geometry().boundingBox()
mapAreaLayer = self.createGridRectangle(mapAreaBoundingBox,
'localizationMapArea')
mapLayers.append(mapAreaLayer.id())
# Getting state layer
stateShpPath = Path(
__file__).parent.parent / 'limites' / '2020' / 'Estados_2020.shp'
stateLayerBackground = self.loadShapeLayer(stateShpPath, '',
'backgroundStates')
mapExtents = self.getExtent(mapAreaFeature, stateLayerBackground,
isInternational)
self.setupBackgroundLayer(stateLayerBackground)
self.setLabel(stateLayerBackground, isInternational)
mapLayers.append(stateLayerBackground.id())
# Adding layers
instance.addMapLayer(stateLayerBackground, False)
instance.addMapLayer(mapAreaLayer, False)
# Updating composition
self.updateMapItem(composition, stateLayerBackground, mapAreaLayer,
mapExtents)
if showLayers:
localizationGroupNode = QgsLayerTreeGroup('localizacao')
localizationGroupNode.setItemVisibilityChecked(False)
for layer in (mapAreaLayer, stateLayerBackground):
localizationGroupNode.addLayer(layer)
root = QgsProject.instance().layerTreeRoot()
root.addChildNode(localizationGroupNode)
return mapLayers
def make(self, composition, mapArea, layers, showLayers=False):
self.deleteGroups(['minimap'])
mapExtents = mapArea.geometry().convexHull().boundingBox()
# Creating layers to lock map
layersToLock = []
layersToLock.extend(layers['minimap'])
layersToLock.extend(layers['images'])
self.updateMapItem(composition, mapExtents, layersToLock)
if showLayers:
miniMapGroupNode = QgsLayerTreeGroup('minimap')
miniMapGroupNode.setItemVisibilityChecked(False)
for layer in layersToLock:
miniMapGroupNode.addLayer(layer)
root = QgsProject.instance().layerTreeRoot()
root.addChildNode(miniMapGroupNode)
return layers['id_minimap']
def test_group_layer_nested(self):
"""
Test group node with child nodes converted to group layer
"""
group_node = QgsLayerTreeGroup('my group')
options = QgsGroupLayer.LayerOptions(QgsCoordinateTransformContext())
group_layer = group_node.convertToGroupLayer(options)
self.assertFalse(group_layer.childLayers())
layer = QgsVectorLayer("Point?field=fldtxt:string", "layer1", "memory")
group_node.addLayer(layer)
group2 = group_node.addGroup('child group 1')
layer2 = QgsVectorLayer("Point?field=fldtxt:string", "layer2",
"memory")
group_node.addLayer(layer2)
layer3 = QgsVectorLayer("Point?field=fldtxt:string", "layer3",
"memory")
layer3_node = group2.addLayer(layer3)
group3 = group2.addGroup('grand child group 1')
group4 = group2.addGroup('grand child group 2')
layer4 = QgsVectorLayer("Point?field=fldtxt:string", "layer4",
"memory")
layer4_node = group3.addLayer(layer4)
layer5 = QgsVectorLayer("Point?field=fldtxt:string", "layer5",
"memory")
layer5_node = group4.addLayer(layer5)
self.assertEqual(group_layer.childLayers(),
[layer2, layer5, layer4, layer3, layer])
layer5_node.setItemVisibilityChecked(False)
self.assertEqual(group_layer.childLayers(),
[layer2, layer4, layer3, layer])
group2.setItemVisibilityChecked(False)
self.assertEqual(group_layer.childLayers(), [layer2, layer])
group2.setItemVisibilityCheckedRecursive(True)
self.assertEqual(group_layer.childLayers(),
[layer2, layer5, layer4, layer3, layer])
def test_group_layer_updates_from_node_visibility(self):
"""
Test that group layer child layers are synced correctly from the group node when layer visibility is changed
"""
group_node = QgsLayerTreeGroup('my group')
options = QgsGroupLayer.LayerOptions(QgsCoordinateTransformContext())
group_layer = group_node.convertToGroupLayer(options)
self.assertFalse(group_layer.childLayers())
layer = QgsVectorLayer("Point?field=fldtxt:string", "layer1", "memory")
group_node.addLayer(layer)
layer2 = QgsVectorLayer("Point?field=fldtxt:string", "layer2",
"memory")
layer2_node = group_node.addLayer(layer2)
layer3 = QgsVectorLayer("Point?field=fldtxt:string", "layer3",
"memory")
group_node.addLayer(layer3)
self.assertEqual(group_layer.childLayers(), [layer3, layer2, layer])
layer2_node.setItemVisibilityChecked(False)
self.assertEqual(group_layer.childLayers(), [layer3, layer])
layer2_node.setItemVisibilityChecked(True)
self.assertEqual(group_layer.childLayers(), [layer3, layer2, layer])
def _create_and_add_layer(
*,
node: LayerNode,
project: qgc.QgsProject,
group: qgc.QgsLayerTreeGroup,
) -> None:
layer_id = node.name
logger.debug(f'Adding {layer_id}...')
layer_cfg = node.layer_cfg
map_layer = make_map_layer(node)
# Assign to a different name because this changes the type. We need to add
# `map_layer` to the project as the last step.
grouped_layer = group.addLayer(map_layer)
grouped_layer.setItemVisibilityChecked(layer_cfg.show, )
# All layers start collapsed. When expanded (the default), they show the
# entire colormap. This takes up a large amount of space in the QGIS table
# of contents.
grouped_layer.setExpanded(False)
project.addMapLayer(map_layer, addToLegend=False)
class AuxiliaryWindow(QMainWindow):
"""Creates a New Canvas."""
closed = pyqtSignal(int)
def __init__(self, parent, geometryWin, numWin):
def populateStatusBar():
statusBar = self.statusBar()
w = QCheckBox("Render", self)
w.setObjectName('renderCheck')
w.setToolTip("Toggle map rendering")
w.setChecked(True)
statusBar.addPermanentWidget(w)
w = QCheckBox("Marker", self)
w.setObjectName('markerCheck')
w.setToolTip("Toggle marker with cursor position from main map")
w.setChecked(False)
statusBar.addPermanentWidget(w, 1)
w = QCheckBox("Extent", self)
w.setObjectName('extentCheck')
w.setToolTip("Show extent of main map")
w.setChecked(False)
statusBar.addPermanentWidget(w, 1)
w = QToolButton(self)
w.setObjectName('highlightBtn')
w.setToolTip("Highlight extent in main map")
w.setText("Highlight")
statusBar.addPermanentWidget(w, 1)
w = QLabel("Scale factor:", self)
w.setObjectName('scaleFactorLabel')
w.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
statusBar.addPermanentWidget(w, 1)
w = QDoubleSpinBox(self)
w.setObjectName('scaleFactorSpin')
w.setToolTip("Current scale factor of main map")
w.setMinimum(0.0)
w.setMaximum(1000.0)
w.setDecimals(3)
w.setValue(1)
w.setSingleStep(.05)
statusBar.addPermanentWidget(w, 1)
w = QToolButton(self)
w.setObjectName('scaleBtn')
w.setToolTip("Set scale for main map")
w.setText("Scale: ")
statusBar.addPermanentWidget(w, 1)
def setupUi():
self.setObjectName("AuxiliaryWindow")
self.setGeometry(geometryWin)
self.addDockWidget(Qt.LeftDockWidgetArea, self.dockLegend)
self.actLegend = self.menuBar().addAction("")
self.actLegend.triggered.connect(self.onActionLegend)
self.canvas.setMapTool(self.toolPan)
self.canvas.setCanvasColor(QColor(255, 255, 255))
self.canvas.enableAntiAliasing(False)
self.canvas.useImageToRender(False)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoom)
self.setCentralWidget(centralWidget)
self.messageBar.setSizePolicy(QSizePolicy.Minimum,
QSizePolicy.Fixed)
layout = QGridLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.canvas, 0, 0, 2, 1)
layout.addWidget(self.messageBar, 0, 0, 1, 1)
centralWidget.setLayout(layout)
super(AuxiliaryWindow, self).__init__(parent)
centralWidget = QWidget(self)
self.canvas = QgsMapCanvas(centralWidget)
self.messageBar = QgsMessageBar(centralWidget)
self.toolPan = QgsMapToolPan(self.canvas)
self.qgisCanvas = qgis.utils.iface.mapCanvas()
self.qgisTView = qgis.utils.iface.layerTreeView()
self.qgisSyncGroup = None
self.numWin = numWin
self.ltg = QgsLayerTreeGroup('', Qt.Unchecked)
self.dockLegend = AuxiliaryLegend(self, numWin)
self.root = QgsProject.instance().layerTreeRoot()
self.extent = self.actLegend = None
self.marker = MarkerWindow(self.canvas)
setupUi()
populateStatusBar()
self.onCurrentLayerChanged(None)
self.onDestinationCrsChanged_MapUnitsChanged()
self.onHasCrsTransformEnabledChanged(
self.qgisCanvas.hasCrsTransformEnabled())
def _connect(self, isConnect=True):
widgets = {
'scaleBtn': self.findChild(QToolButton, 'scaleBtn'),
'renderCheck': self.findChild(QCheckBox, 'renderCheck'),
'markerCheck': self.findChild(QCheckBox, 'markerCheck'),
'extentCheck': self.findChild(QCheckBox, 'extentCheck'),
'highlightBtn': self.findChild(QToolButton, 'highlightBtn'),
'scaleFactorSpin': self.findChild(QDoubleSpinBox,
'scaleFactorSpin')
}
signal_slot = ({
'signal': widgets['scaleBtn'].clicked,
'slot': self.onClickedScale
}, {
'signal': widgets['renderCheck'].toggled,
'slot': self.onToggledRender
}, {
'signal': widgets['markerCheck'].toggled,
'slot': self.onToggledMarker
}, {
'signal': widgets['extentCheck'].toggled,
'slot': self.onToggledExtent
}, {
'signal': widgets['highlightBtn'].clicked,
'slot': self.onClickedHighlight
}, {
'signal': widgets['scaleFactorSpin'].valueChanged,
'slot': self.onValueChangedScale
}, {
'signal': self.dockLegend.currentLayerChanged,
'slot': self.onCurrentLayerChanged
}, {
'signal': self.dockLegend.currentLayerQgis,
'slot': self.onCurrentLayerQgis
}, {
'signal': self.dockLegend.syncGroupLayer,
'slot': self.onSyncGroupAddLayersQgis
}, {
'signal': self.dockLegend.addSelectedLayersQgis,
'slot': self.onAddSelectedLayersQgis
}, {
'signal': self.dockLegend.removeLayer,
'slot': self.onRemoveLayers
}, {
'signal': self.dockLegend.needSelectLayer,
'slot': self.onNeedSelectLayer
}, {
'signal': self.dockLegend.closed,
'slot': self.onClosedLegend
}, {
'signal': self.canvas.extentsChanged,
'slot': self.onExtentsChangedMirror
}, {
'signal': self.qgisCanvas.extentsChanged,
'slot': self.onExtentsChangedQgisCanvas
}, {
'signal': self.qgisCanvas.xyCoordinates,
'slot': self.marker.onXYCoordinates
}, {
'signal': self.qgisCanvas.destinationCrsChanged,
'slot': self.onDestinationCrsChanged_MapUnitsChanged
}, {
'signal': self.qgisCanvas.mapUnitsChanged,
'slot': self.onDestinationCrsChanged_MapUnitsChanged
}, {
'signal': self.qgisCanvas.hasCrsTransformEnabledChanged,
'slot': self.onHasCrsTransformEnabledChanged
}, {
'signal': self.root.removedChildren,
'slot': self.onRemovedChildrenQgisRoot
}, {
'signal': QgsMapLayerRegistry.instance().layersWillBeRemoved,
'slot': self.onLayersWillBeRemoved
})
if isConnect:
for item in signal_slot:
item['signal'].connect(item['slot'])
else:
for item in signal_slot:
item['signal'].disconnect(item['slot'])
def _extentsChanged(self,
canvasOrigin,
originSlot,
canvasDest,
scaleFactor=None):
canvasOrigin.extentsChanged.disconnect(originSlot)
if scaleFactor is None:
scale = canvasOrigin.scale()
canvasOrigin.setExtent(canvasDest.extent())
canvasOrigin.zoomScale(scale)
else:
canvasOrigin.setExtent(canvasDest.extent())
canvasOrigin.zoomScale(scaleFactor * canvasDest.scale())
canvasOrigin.extentsChanged.connect(originSlot)
def _textScaleBtnChanched(self):
scale = locale.format("%.0f", self.canvas.scale(), True)
w = self.findChild(QToolButton, 'scaleBtn')
w.setText("Scale 1:%s" % scale)
def _extent(self):
rect = self.qgisCanvas.extent()
p1 = QgsPoint(rect.xMinimum(), rect.yMinimum())
p2 = QgsPoint(rect.xMinimum(), rect.yMaximum())
p3 = QgsPoint(rect.xMaximum(), rect.yMaximum())
p4 = QgsPoint(rect.xMaximum(), rect.yMinimum())
p5 = QgsPoint(rect.xMinimum(), rect.yMinimum())
points = [p1, p2, p3, p4, p5]
self.extent.setToGeometry(QgsGeometry.fromPolyline(points), None)
def _execFunction(self, func, arg, signal, slot):
signal.disconnect(slot)
func(arg)
signal.connect(slot)
def _connectVectorRefresh(self, layer, isConnect=True):
if isinstance(layer, QgsVectorLayer):
f = layer.editCommandEnded.connect if isConnect else layer.editCommandEnded.disconnect
f(self.canvas.refresh)
def _addLayersQgis(self, layersQgis, needMsg=True):
self.dockLegend.clearBridge()
l1 = set(layersQgis)
l2 = set(map(lambda item: item.layer(), self.ltg.findLayers()))
layers = list(l1 - l2)
if len(layers) == 0:
if needMsg:
self.messageBar.pushMessage(
"Need select new layer(s) in main map",
QgsMessageBar.WARNING, 2)
else:
# Get order by layersQgis
for item in layersQgis:
if item in layers:
self.ltg.addLayer(item)
self._connectVectorRefresh(item)
self.dockLegend.setBridge(self.canvas)
def _syncGroupAddLayersQgis(self, ltg):
layersQgis = map(lambda item: item.layer(), ltg.findLayers())
if len(layersQgis) == 0:
return False
name = ltg.name()
if self.qgisSyncGroup == ltg:
msg = "Already synchronized group (main map) -> '%s'" % name
self.messageBar.pushMessage(msg, QgsMessageBar.INFO, 4)
return True
if not self.qgisSyncGroup is None:
self.qgisSyncGroup.addedChildren.disconnect(
self.addedChildrenLayer)
self.qgisSyncGroup = ltg
self.qgisSyncGroup.addedChildren.connect(self.addedChildrenLayer)
self.dockLegend.addNameSyncGroup(name)
msg = "Changed synchronized group (main map) -> '%s'" % name
self.messageBar.pushMessage(msg, QgsMessageBar.INFO, 4)
self._addLayersQgis(layersQgis)
return True
def run(self):
if len(self.qgisTView.selectedLayerNodes()) > 0:
self.onAddSelectedLayersQgis()
else:
ltn = self.qgisTView.currentNode()
if not isinstance(ltn, QgsLayerTreeGroup):
return False
else:
if ltn == self.root:
return False
else:
if not self._syncGroupAddLayersQgis(ltn):
return False
self.dockLegend.setBridge(self.canvas)
self.canvas.setRenderFlag(False)
self.show() # Need show before self._connect()
self._connect()
self.canvas.setExtent(self.qgisCanvas.extent())
w = self.findChild(QDoubleSpinBox, 'scaleFactorSpin')
w.setValue(1)
self.canvas.setRenderFlag(True)
return True
def getLayersCanvas(self):
layerIds = map(lambda x: x.layerId(), self.ltg.findLayers())
layerChecks = map(lambda x: str(x.isVisible()), self.ltg.findLayers())
return (layerIds, layerChecks)
def setLayersCanvas(self, layerIds, layerChecks):
prevFlag = self.canvas.renderFlag()
self.canvas.setRenderFlag(False)
lyrRegs = QgsMapLayerRegistry.instance()
for id in range(len(layerIds)):
layer = lyrRegs.mapLayer(layerIds[id])
isVisible = int(layerChecks[id])
if not layer is None:
self.ltg.addLayer(layer).setVisible(isVisible)
self.canvas.setRenderFlag(prevFlag)
def getWindowSetting(self):
g = self.geometry()
r = self.canvas.extent()
nodes = self.ltg.findLayers()
currentLayer = self.dockLegend.tview.currentLayer()
currentLayerId = currentLayer.id(
) if not currentLayer is None else "None"
windowSetting = {
'numWin':
self.numWin,
'geometryWin': {
'x': g.x(),
'y': g.y(),
'width': g.width(),
'height': g.height()
},
'extentCanvas': {
'xmin': r.xMinimum(),
'ymin': r.yMinimum(),
'xmax': r.xMaximum(),
'ymax': r.yMaximum()
},
'currentLayerId':
currentLayerId,
'layerIds':
' '.join(map(lambda item: item.layerId(), nodes)),
'visibles':
' '.join(map(lambda item: str(int(item.isVisible())), nodes))
}
for item in ('render', 'marker', 'extent'):
nameGui = "%sCheck" % item
windowSetting[item] = int(
self.findChild(QCheckBox, nameGui).isChecked())
return windowSetting
def setWindowSetting(self, windowSetting):
self.numWin = windowSetting['numWin']
# Populate with layers and set Bridge for legend
layerIds = windowSetting['layerIds'].split(' ')
visibles = map(lambda item: bool(int(item)),
windowSetting['visibles'].split(' '))
ltg = self.qgisTView.layerTreeModel().rootGroup()
for id in range(len(layerIds)):
node = ltg.findLayer(layerIds[id])
if node is None:
continue
layer = node.layer()
visible = Qt.Checked if visibles[id] else Qt.Unchecked
self._connectVectorRefresh(layer)
self.ltg.addLayer(layer).setVisible(visible)
self.dockLegend.setBridge(self.canvas)
self.show() # Need show before self._connect()
self._connect()
node = ltg.findLayer(windowSetting['currentLayerId'])
if not node is None:
layer = node.layer()
self.dockLegend.tview.setCurrentLayer(layer)
w = windowSetting['extentCanvas']
self.canvas.setExtent(
QgsRectangle(w['xmin'], w['ymin'], w['xmax'], w['ymax']))
for item in ('render', 'marker', 'extent'):
value = bool(windowSetting[item])
nameGui = "%sCheck" % item
self.findChild(QCheckBox, nameGui).setChecked(value)
def closeEvent(self, event):
self._connect(False)
event.accept()
self.closed.emit(self.numWin)
@pyqtSlot(int)
def onValueChangedScale(self, scaleFactor):
w = self.findChild(QCheckBox, 'renderCheck')
if not w.isChecked():
return
self._execFunction(self.canvas.zoomScale,
scaleFactor * self.qgisCanvas.scale(),
self.canvas.extentsChanged,
self.onExtentsChangedMirror)
self._textScaleBtnChanched()
@pyqtSlot()
def onClickedScale(self):
self._execFunction(self.qgisCanvas.zoomScale, self.canvas.scale(),
self.qgisCanvas.extentsChanged,
self.onExtentsChangedQgisCanvas)
w = self.findChild(QDoubleSpinBox, 'scaleFactorSpin')
self._execFunction(w.setValue, 1.0, w.valueChanged,
self.onValueChangedScale)
@pyqtSlot()
def onClickedHighlight(self):
def removeRB():
rb.reset(True)
self.qgisCanvas.scene().removeItem(rb)
rb = QgsRubberBand(self.qgisCanvas, QGis.Polygon)
rb.setBorderColor(QColor(255, 0, 0))
rb.setWidth(2)
rb.setToGeometry(QgsGeometry.fromRect(self.canvas.extent()), None)
QTimer.singleShot(2000, removeRB)
@pyqtSlot(bool)
def onToggledRender(self, enabled):
if enabled:
self.canvas.setMapTool(self.toolPan)
w = self.findChild(QDoubleSpinBox, 'scaleFactorSpin')
self._extentsChanged(self.canvas, self.onExtentsChangedMirror,
self.qgisCanvas, w.value())
self._textScaleBtnChanched()
self.canvas.setWheelAction(QgsMapCanvas.WheelZoom)
else:
self.canvas.unsetMapTool(self.toolPan)
self.canvas.setWheelAction(QgsMapCanvas.WheelNothing)
self.canvas.setRenderFlag(enabled)
@pyqtSlot(bool)
def onToggledMarker(self, enabled):
self.marker.add() if enabled else self.marker.remove()
@pyqtSlot(bool)
def onToggledExtent(self, enabled):
def setExtent():
if not self.extent is None:
self.canvas.scene().removeItem(self.extent)
self.extent = QgsRubberBand(self.canvas, QGis.Polygon)
self.extent.setBorderColor(QColor(255, 0, 0))
self.extent.setWidth(2)
self._extent()
if enabled:
setExtent()
else:
if not self.extent is None:
self.canvas.scene().removeItem(self.extent)
self.extent = None
@pyqtSlot()
def onExtentsChangedMirror(self):
w = self.findChild(QCheckBox, 'renderCheck')
if not w.isChecked():
return
self._extentsChanged(self.qgisCanvas, self.onExtentsChangedQgisCanvas,
self.canvas)
self._textScaleBtnChanched()
w = self.findChild(QDoubleSpinBox, 'scaleFactorSpin')
self._execFunction(w.setValue,
self.canvas.scale() / self.qgisCanvas.scale(),
w.valueChanged, self.onValueChangedScale)
if not self.extent is None:
self._extent()
@pyqtSlot()
def onExtentsChangedQgisCanvas(self):
w = self.findChild(QCheckBox, 'renderCheck')
if not w.isChecked():
return
w = self.findChild(QDoubleSpinBox, 'scaleFactorSpin')
self._extentsChanged(self.canvas, self.onExtentsChangedMirror,
self.qgisCanvas, w.value())
self._textScaleBtnChanched()
if not self.extent is None:
self._extent()
@pyqtSlot()
def onDestinationCrsChanged_MapUnitsChanged(self):
prevFlag = self.canvas.renderFlag()
self.canvas.setRenderFlag(False)
self.canvas.setDestinationCrs(
self.qgisCanvas.mapRenderer().destinationCrs())
self.canvas.setMapUnits(self.qgisCanvas.mapUnits())
self.canvas.setRenderFlag(prevFlag)
@pyqtSlot(bool)
def onHasCrsTransformEnabledChanged(self, enabled):
prevFlag = self.canvas.renderFlag()
self.canvas.setRenderFlag(False)
self.canvas.mapRenderer().setProjectionsEnabled(enabled)
self.canvas.setRenderFlag(prevFlag)
@pyqtSlot(list)
def onLayersWillBeRemoved(self, theLayerIds):
ids = list(set(self.ltg.findLayerIds())
& set(theLayerIds)) # intersection
nodes = map(lambda item: self.ltg.findLayer(item), ids)
for item in nodes:
self._connectVectorRefresh(item.layer(), False)
self.ltg.removeChildNode(item)
@pyqtSlot()
def onAddSelectedLayersQgis(self):
layersQgis = map(lambda item: item.layer(),
self.qgisTView.selectedLayerNodes())
self._addLayersQgis(layersQgis)
@pyqtSlot('QgsLayerTreeNode', int, int)
def addedChildrenLayer(self, ltg, indexFrom, indexTo):
layersQgis = map(lambda item: item.layer(), ltg.findLayers())
self._addLayersQgis(layersQgis, False)
@pyqtSlot('QgsLayerTreeNode', int, int)
def onRemovedChildrenQgisRoot(self, ltg, indexFrom, indexTo):
if not self.qgisSyncGroup is None and not self.qgisSyncGroup in self.root.children(
):
self.qgisSyncGroup = None
self.dockLegend.addNameSyncGroup("None")
msg = "Removed synchronized group (main map)"
self.messageBar.pushMessage(msg, QgsMessageBar.INFO, 4)
@pyqtSlot()
def onSyncGroupAddLayersQgis(self):
msg = "Need active a group in main map with new layers"
ltn = self.qgisTView.currentNode()
if not isinstance(ltn, QgsLayerTreeGroup) or ltn == self.root:
self.messageBar.pushMessage(msg, QgsMessageBar.WARNING, 3)
return
if not self._syncGroupAddLayersQgis(ltn):
self.messageBar.pushMessage(msg, QgsMessageBar.WARNING, 3)
@pyqtSlot('QgsMapLayer')
def onRemoveLayers(self, layer):
self._connectVectorRefresh(layer, False)
@pyqtSlot()
def onNeedSelectLayer(self):
self.messageBar.pushMessage("Need select layer(s)",
QgsMessageBar.WARNING, 2)
@pyqtSlot('QgsMapLayer')
def onCurrentLayerQgis(self, layer):
if layer is None:
self.messageBar.pushMessage("Need active layer",
QgsMessageBar.WARNING, 2)
else:
self.qgisTView.setCurrentLayer(layer)
@pyqtSlot('QgsMapLayer')
def onCurrentLayerChanged(self, layer):
hasLayer = True if not layer is None else False
selectName = "Select layer '%s'" % layer.name(
) if hasLayer else "None select layer"
title = "#%d - %s" % (self.numWin, selectName)
self.setWindowTitle(title)
@pyqtSlot()
def onClosedLegend(self):
self.actLegend.setText("Show layers")
@pyqtSlot()
def onActionLegend(self):
self.actLegend.setText("")
self.dockLegend.show()
def run(item, action, mainwindow):
db = item.database()
uri = db.uri()
iface = mainwindow.iface
quoteId = db.connector.quoteId
quoteStr = db.connector.quoteString
# check if the selected item is a topology schema
isTopoSchema = False
if not hasattr(item, 'schema'):
mainwindow.infoBar.pushMessage(
"Invalid topology", u'Select a topology schema to continue.',
Qgis.Info, mainwindow.iface.messageTimeout())
return False
if item.schema() is not None:
sql = u"SELECT srid FROM topology.topology WHERE name = %s" % quoteStr(
item.schema().name)
res = db.executeSql(sql)
isTopoSchema = len(res) > 0
if not isTopoSchema:
mainwindow.infoBar.pushMessage(
"Invalid topology",
u'Schema "{0}" is not registered in topology.topology.'.format(
item.schema().name), Qgis.Warning,
mainwindow.iface.messageTimeout())
return False
if (res[0][0] < 0):
mainwindow.infoBar.pushMessage(
"WARNING",
u'Topology "{0}" is registered as having a srid of {1} in topology.topology, we will assume 0 (for unknown)'
.format(item.schema().name, res[0]), Qgis.Warning,
mainwindow.iface.messageTimeout())
toposrid = '0'
else:
toposrid = str(res[0][0])
# load layers into the current project
toponame = item.schema().name
template_dir = os.path.join(current_path, 'templates')
# do not refresh the canvas until all the layers are added
wasFrozen = iface.mapCanvas().isFrozen()
iface.mapCanvas().freeze()
try:
provider = db.dbplugin().providerName()
uri = db.uri()
# Force use of estimated metadata (topologies can be big)
uri.setUseEstimatedMetadata(True)
# FACES
# face mbr
uri.setDataSource(toponame, 'face', 'mbr', '', 'face_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Polygon)
layerFaceMbr = QgsVectorLayer(uri.uri(False),
u'%s.face_mbr' % toponame, provider)
layerFaceMbr.loadNamedStyle(os.path.join(template_dir, 'face_mbr.qml'))
face_extent = layerFaceMbr.extent()
# face geometry
sql = u'SELECT face_id, mbr, topology.ST_GetFaceGeometry(%s,' \
'face_id)::geometry(polygon, %s) as geom ' \
'FROM %s.face WHERE face_id > 0' % \
(quoteStr(toponame), toposrid, quoteId(toponame))
uri.setDataSource('', u'(%s\n)' % sql, 'geom', '', 'face_id')
uri.setParam('bbox', 'mbr')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Polygon)
layerFaceGeom = QgsVectorLayer(uri.uri(False), u'%s.face' % toponame,
provider)
layerFaceGeom.setExtent(face_extent)
layerFaceGeom.loadNamedStyle(os.path.join(template_dir, 'face.qml'))
# face_seed
sql = u'SELECT face_id, mbr, ST_PointOnSurface(' \
'topology.ST_GetFaceGeometry(%s,' \
'face_id))::geometry(point, %s) as geom ' \
'FROM %s.face WHERE face_id > 0' % \
(quoteStr(toponame), toposrid, quoteId(toponame))
uri.setDataSource('', u'(%s)' % sql, 'geom', '', 'face_id')
uri.setParam('bbox', 'mbr')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Point)
layerFaceSeed = QgsVectorLayer(uri.uri(False),
u'%s.face_seed' % toponame, provider)
layerFaceSeed.setExtent(face_extent)
layerFaceSeed.loadNamedStyle(
os.path.join(template_dir, 'face_seed.qml'))
# TODO: add polygon0, polygon1 and polygon2 ?
# NODES
# node
uri.setDataSource(toponame, 'node', 'geom', '', 'node_id')
uri.removeParam('bbox')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Point)
layerNode = QgsVectorLayer(uri.uri(False), u'%s.node' % toponame,
provider)
layerNode.loadNamedStyle(os.path.join(template_dir, 'node.qml'))
node_extent = layerNode.extent()
# node labels
uri.setDataSource(toponame, 'node', 'geom', '', 'node_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Point)
uri.removeParam('bbox')
layerNodeLabel = QgsVectorLayer(uri.uri(False),
u'%s.node_id' % toponame, provider)
layerNodeLabel.setExtent(node_extent)
layerNodeLabel.loadNamedStyle(
os.path.join(template_dir, 'node_label.qml'))
# EDGES
# edge
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerEdge = QgsVectorLayer(uri.uri(False), u'%s.edge' % toponame,
provider)
edge_extent = layerEdge.extent()
# directed edge
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerDirectedEdge = QgsVectorLayer(uri.uri(False),
u'%s.directed_edge' % toponame,
provider)
layerDirectedEdge.setExtent(edge_extent)
layerDirectedEdge.loadNamedStyle(os.path.join(template_dir,
'edge.qml'))
# edge labels
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerEdgeLabel = QgsVectorLayer(uri.uri(False),
u'%s.edge_id' % toponame, provider)
layerEdgeLabel.setExtent(edge_extent)
layerEdgeLabel.loadNamedStyle(
os.path.join(template_dir, 'edge_label.qml'))
# face_left
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerFaceLeft = QgsVectorLayer(uri.uri(False),
u'%s.face_left' % toponame, provider)
layerFaceLeft.setExtent(edge_extent)
layerFaceLeft.loadNamedStyle(
os.path.join(template_dir, 'face_left.qml'))
# face_right
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerFaceRight = QgsVectorLayer(uri.uri(False),
u'%s.face_right' % toponame, provider)
layerFaceRight.setExtent(edge_extent)
layerFaceRight.loadNamedStyle(
os.path.join(template_dir, 'face_right.qml'))
# next_left
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerNextLeft = QgsVectorLayer(uri.uri(False),
u'%s.next_left' % toponame, provider)
layerNextLeft.setExtent(edge_extent)
layerNextLeft.loadNamedStyle(
os.path.join(template_dir, 'next_left.qml'))
# next_right
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
uri.removeParam('bbox')
layerNextRight = QgsVectorLayer(uri.uri(False),
u'%s.next_right' % toponame, provider)
layerNextRight.setExtent(edge_extent)
layerNextRight.loadNamedStyle(
os.path.join(template_dir, 'next_right.qml'))
# Add layers to the layer tree
faceLayers = [layerFaceMbr, layerFaceGeom, layerFaceSeed]
nodeLayers = [layerNode, layerNodeLabel]
edgeLayers = [
layerEdge, layerDirectedEdge, layerEdgeLabel, layerFaceLeft,
layerFaceRight, layerNextLeft, layerNextRight
]
QgsProject.instance().addMapLayers(faceLayers, False)
QgsProject.instance().addMapLayers(nodeLayers, False)
QgsProject.instance().addMapLayers(edgeLayers, False)
# Organize layers in groups
groupFaces = QgsLayerTreeGroup(u'Faces')
for layer in faceLayers:
nodeLayer = groupFaces.addLayer(layer)
nodeLayer.setItemVisibilityChecked(False)
nodeLayer.setExpanded(False)
groupNodes = QgsLayerTreeGroup(u'Nodes')
for layer in nodeLayers:
nodeLayer = groupNodes.addLayer(layer)
nodeLayer.setItemVisibilityChecked(False)
nodeLayer.setExpanded(False)
groupEdges = QgsLayerTreeGroup(u'Edges')
for layer in edgeLayers:
nodeLayer = groupEdges.addLayer(layer)
nodeLayer.setItemVisibilityChecked(False)
nodeLayer.setExpanded(False)
supergroup = QgsLayerTreeGroup(u'Topology "%s"' % toponame)
supergroup.insertChildNodes(-1, [groupFaces, groupNodes, groupEdges])
layerTree = QgsProject.instance().layerTreeRoot()
layerTree.addChildNode(supergroup)
# Set layers rendering order
order = layerTree.layerOrder()
order.insert(0, order.pop(order.index(layerFaceMbr)))
order.insert(0, order.pop(order.index(layerFaceGeom)))
order.insert(0, order.pop(order.index(layerEdge)))
order.insert(0, order.pop(order.index(layerDirectedEdge)))
order.insert(0, order.pop(order.index(layerNode)))
order.insert(0, order.pop(order.index(layerFaceSeed)))
order.insert(0, order.pop(order.index(layerNodeLabel)))
order.insert(0, order.pop(order.index(layerEdgeLabel)))
order.insert(0, order.pop(order.index(layerNextLeft)))
order.insert(0, order.pop(order.index(layerNextRight)))
order.insert(0, order.pop(order.index(layerFaceLeft)))
order.insert(0, order.pop(order.index(layerFaceRight)))
layerTree.setHasCustomLayerOrder(True)
layerTree.setCustomLayerOrder(order)
finally:
# Set canvas extent to topology extent, if not yet initialized
canvas = iface.mapCanvas()
if (canvas.fullExtent().isNull()):
ext = node_extent
ext.combineExtentWith(edge_extent)
# Grow by 1/20 of largest side
ext = ext.buffered(max(ext.width(), ext.height()) / 20)
canvas.setExtent(ext)
# restore canvas render flag
if not wasFrozen:
iface.mapCanvas().freeze(False)
return True
def getLegendGraphic(self, params):
qgsLayer = self.layerRegistry.mapLayer(params.get('layer'))
boxSpace = 1
layerSpace = 2
# layerTitleSpace = 3
symbolSpace = 2
iconLabelSpace = 2
symbolWidth = 5
symbolHeight = 3
drawLegendLabel = True
rootGroup = QgsLayerTreeGroup()
rootGroup.addLayer(qgsLayer)
# layer = QgsLayerTreeLayer(qgsLayer)
# if qgsLayer.title():
# layer.setLayerName(qgsLayer.title())
legendModel = QgsLayerTreeModel(rootGroup)
rootChildren = rootGroup.children()
img_tmp = QImage(QSize(1, 1), QImage.Format_ARGB32_Premultiplied)
dpm = 1 / 0.00028
img_tmp.setDotsPerMeterX(dpm)
img_tmp.setDotsPerMeterY(dpm)
dpmm = img_tmp.dotsPerMeterX() / 1000.0
del img_tmp
legendSettings = QgsLegendSettings()
legendSettings.setTitle('')
legendSettings.setBoxSpace(boxSpace)
legendSettings.rstyle(QgsComposerLegendStyle.Subgroup).setMargin(QgsComposerLegendStyle.Top, layerSpace)
legendSettings.rstyle(QgsComposerLegendStyle.Symbol).setMargin(QgsComposerLegendStyle.Top, symbolSpace)
legendSettings.rstyle(QgsComposerLegendStyle.SymbolLabel).setMargin(QgsComposerLegendStyle.Left, iconLabelSpace)
legendSettings.setSymbolSize(QSizeF(symbolWidth, symbolHeight))
# legendSettings.rstyle(QgsComposerLegendStyle.Subgroup).setFont(layerFont)
# legendSettings.rstyle(QgsComposerLegendStyle.SymbolLabel).setFont(itemFont)
# // TODO: not available: layer font color
# legendSettings.setFontColor( itemFontColor );
# for node in rootChildren:
# if (QgsLayerTree.isLayer(node)):
# QgsLegendRenderer.setNodeLegendStyle(node, QgsComposerLegendStyle.Subgroup)
# # rule item titles
# # if ( !mDrawLegendItemLabel )
# # for legendNode in legendModel.layerLegendNodes(nodeLayer):
# # legendNode.setUserLabel(' ')
# # }
legendRenderer = QgsLegendRenderer(legendModel, legendSettings)
minSize = legendRenderer.minimumSize()
s = QSize(minSize.width() * dpmm, minSize.height() * dpmm)
img = QImage(s, QImage.Format_ARGB32_Premultiplied)
# fill in the background
color = QColor(0, 0, 0, 0)
img.fill(color)
p = QPainter()
p.begin(img)
p.setRenderHint(QPainter.Antialiasing, True)
p.scale(dpmm, dpmm)
legendRenderer.drawLegend(p)
map_buffer = QBuffer()
map_buffer.open(QIODevice.ReadWrite)
img.save(map_buffer, 'PNG')
# clean up
map_buffer.close()
p.end()
# self.layerRegistry.removeAllMapLayers()
return map_buffer.data()
def run(item, action, mainwindow):
db = item.database()
uri = db.uri()
iface = mainwindow.iface
quoteId = db.connector.quoteId
quoteStr = db.connector.quoteString
# check if the selected item is a topology schema
isTopoSchema = False
if not hasattr(item, 'schema'):
mainwindow.infoBar.pushMessage("Invalid topology", u'Select a topology schema to continue.', QgsMessageBar.INFO,
mainwindow.iface.messageTimeout())
return False
if item.schema() is not None:
sql = u"SELECT srid FROM topology.topology WHERE name = %s" % quoteStr(item.schema().name)
c = db.connector._get_cursor()
db.connector._execute(c, sql)
res = db.connector._fetchone(c)
isTopoSchema = res is not None
if not isTopoSchema:
mainwindow.infoBar.pushMessage("Invalid topology",
u'Schema "{0}" is not registered in topology.topology.'.format(
item.schema().name), QgsMessageBar.WARNING,
mainwindow.iface.messageTimeout())
return False
if (res[0] < 0):
mainwindow.infoBar.pushMessage("WARNING", u'Topology "{0}" is registered as having a srid of {1} in topology.topology, we will assume 0 (for unknown)'.format(item.schema().name, res[0]), QgsMessageBar.WARNING, mainwindow.iface.messageTimeout())
toposrid = '0'
else:
toposrid = str(res[0])
# load layers into the current project
toponame = item.schema().name
template_dir = os.path.join(current_path, 'templates')
# do not refresh the canvas until all the layers are added
wasFrozen = iface.mapCanvas().isFrozen()
iface.mapCanvas().freeze()
try:
provider = db.dbplugin().providerName()
uri = db.uri()
# Force use of estimated metadata (topologies can be big)
uri.setUseEstimatedMetadata(True)
# FACES
# face mbr
uri.setDataSource(toponame, 'face', 'mbr', '', 'face_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Polygon)
layerFaceMbr = QgsVectorLayer(uri.uri(False), u'%s.face_mbr' % toponame, provider)
layerFaceMbr.loadNamedStyle(os.path.join(template_dir, 'face_mbr.qml'))
face_extent = layerFaceMbr.extent()
# face geometry
sql = u'SELECT face_id, topology.ST_GetFaceGeometry(%s,' \
'face_id)::geometry(polygon, %s) as geom ' \
'FROM %s.face WHERE face_id > 0' % \
(quoteStr(toponame), toposrid, quoteId(toponame))
uri.setDataSource('', u'(%s\n)' % sql, 'geom', '', 'face_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Polygon)
layerFaceGeom = QgsVectorLayer(uri.uri(False), u'%s.face' % toponame, provider)
layerFaceGeom.setExtent(face_extent)
layerFaceGeom.loadNamedStyle(os.path.join(template_dir, 'face.qml'))
# face_seed
sql = u'SELECT face_id, ST_PointOnSurface(' \
'topology.ST_GetFaceGeometry(%s,' \
'face_id))::geometry(point, %s) as geom ' \
'FROM %s.face WHERE face_id > 0' % \
(quoteStr(toponame), toposrid, quoteId(toponame))
uri.setDataSource('', u'(%s)' % sql, 'geom', '', 'face_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Point)
layerFaceSeed = QgsVectorLayer(uri.uri(False), u'%s.face_seed' % toponame, provider)
layerFaceSeed.setExtent(face_extent)
layerFaceSeed.loadNamedStyle(os.path.join(template_dir, 'face_seed.qml'))
# TODO: add polygon0, polygon1 and polygon2 ?
# NODES
# node
uri.setDataSource(toponame, 'node', 'geom', '', 'node_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Point)
layerNode = QgsVectorLayer(uri.uri(False), u'%s.node' % toponame, provider)
layerNode.loadNamedStyle(os.path.join(template_dir, 'node.qml'))
node_extent = layerNode.extent()
# node labels
uri.setDataSource(toponame, 'node', 'geom', '', 'node_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.Point)
layerNodeLabel = QgsVectorLayer(uri.uri(False), u'%s.node_id' % toponame, provider)
layerNodeLabel.setExtent(node_extent)
layerNodeLabel.loadNamedStyle(os.path.join(template_dir, 'node_label.qml'))
# EDGES
# edge
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerEdge = QgsVectorLayer(uri.uri(False), u'%s.edge' % toponame, provider)
edge_extent = layerEdge.extent()
# directed edge
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerDirectedEdge = QgsVectorLayer(uri.uri(False), u'%s.directed_edge' % toponame, provider)
layerDirectedEdge.setExtent(edge_extent)
layerDirectedEdge.loadNamedStyle(os.path.join(template_dir, 'edge.qml'))
# edge labels
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerEdgeLabel = QgsVectorLayer(uri.uri(False), u'%s.edge_id' % toponame, provider)
layerEdgeLabel.setExtent(edge_extent)
layerEdgeLabel.loadNamedStyle(os.path.join(template_dir, 'edge_label.qml'))
# face_left
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerFaceLeft = QgsVectorLayer(uri.uri(False), u'%s.face_left' % toponame, provider)
layerFaceLeft.setExtent(edge_extent)
layerFaceLeft.loadNamedStyle(os.path.join(template_dir, 'face_left.qml'))
# face_right
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerFaceRight = QgsVectorLayer(uri.uri(False), u'%s.face_right' % toponame, provider)
layerFaceRight.setExtent(edge_extent)
layerFaceRight.loadNamedStyle(os.path.join(template_dir, 'face_right.qml'))
# next_left
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerNextLeft = QgsVectorLayer(uri.uri(False), u'%s.next_left' % toponame, provider)
layerNextLeft.setExtent(edge_extent)
layerNextLeft.loadNamedStyle(os.path.join(template_dir, 'next_left.qml'))
# next_right
uri.setDataSource(toponame, 'edge_data', 'geom', '', 'edge_id')
uri.setSrid(toposrid)
uri.setWkbType(QgsWkbTypes.LineString)
layerNextRight = QgsVectorLayer(uri.uri(False), u'%s.next_right' % toponame, provider)
layerNextRight.setExtent(edge_extent)
layerNextRight.loadNamedStyle(os.path.join(template_dir, 'next_right.qml'))
# Add layers to the layer tree
faceLayers = [layerFaceMbr, layerFaceGeom, layerFaceSeed]
nodeLayers = [layerNode, layerNodeLabel]
edgeLayers = [layerEdge, layerDirectedEdge, layerEdgeLabel
# , layerEdgeFaceLeft, layerEdgeFaceRight, layerEdgeNextLeft, layerEdgeNextRight
]
QgsProject.instance().addMapLayers(faceLayers, False)
groupFaces = QgsLayerTreeGroup(u'Faces')
for layer in faceLayers:
nodeLayer = groupFaces.addLayer(layer)
nodeLayer.setVisible(Qt.Unchecked)
nodeLayer.setExpanded(False)
groupNodes = QgsLayerTreeGroup(u'Nodes')
for layer in nodeLayers:
nodeLayer = groupNodes.addLayer(layer)
nodeLayer.setVisible(Qt.Unchecked)
nodeLayer.setExpanded(False)
groupEdges = QgsLayerTreeGroup(u'Edges')
for layer in edgeLayers:
nodeLayer = groupEdges.addLayer(layer)
nodeLayer.setVisible(Qt.Unchecked)
nodeLayer.setExpanded(False)
supergroup = QgsLayerTreeGroup(u'Topology "%s"' % toponame)
supergroup.insertChildNodes(-1, [groupFaces, groupNodes, groupEdges])
QgsProject.instance().layerTreeRoot().addChildNode(supergroup)
finally:
# Set canvas extent to topology extent, if not yet initialized
canvas = iface.mapCanvas()
if (canvas.fullExtent().isNull()):
ext = node_extent
ext.combineExtentWith(edge_extent)
# Grow by 1/20 of largest side
ext = ext.buffer(max(ext.width(), ext.height()) / 20)
canvas.setExtent(ext)
# restore canvas render flag
if not wasFrozen:
iface.mapCanvas().freeze(False)
return True
def renderer(self):
if 'QGIS_AUTH_DB_DIR_PATH' not in os.environ:
os.environ['QGIS_AUTH_DB_DIR_PATH'] = '/tmp'
qgis = None
while True:
options, result = self.queue.get()
# Don't start QGIS until first request
if qgis is None:
qgis = QgsApplication([], False)
qgis.setPrefixPath(self.settings.get('path'), True)
qgis.setDefaultSvgPaths(qgis.svgPaths() +
self.settings.get('svgpaths'))
qgis.setMaxThreads(1)
qgis.initQgis()
try:
if isinstance(options, LegendOptions):
style, = options
layer = self._qgs_memory_layer(style)
layer.setName(style.parent.display_name)
QgsMapLayerRegistry.instance().addMapLayer(layer)
root = QgsLayerTreeGroup()
root.addLayer(layer)
# 'Cannot create a QPixmap when no GUI is being used'
# warning occurs here
model = QgsLayerTreeModel(root)
settings = QgsLegendSettings()
settings.setTitle('')
settings.setBoxSpace(1)
settings.setSymbolSize(QSizeF(5, 3))
settings.setDpi(96)
renderer = QgsLegendRenderer(model, settings)
# Dots per mm
dpmm = settings.dpi() / 25.4
min_size = renderer.minimumSize()
size = QSize(dpmm * min_size.width(),
dpmm * min_size.height())
img = QImage(size, QImage.Format_ARGB32)
img.fill(QColor(0, 0, 0, 0))
painter = QPainter()
painter.begin(img)
painter.scale(dpmm, dpmm)
renderer.drawLegend(painter)
painter.end()
QgsMapLayerRegistry.instance().removeAllMapLayers()
ba = QByteArray()
bf = QBuffer(ba)
bf.open(QIODevice.WriteOnly)
img.save(bf, 'PNG')
bf.close()
buf = StringIO()
buf.write(bf.data())
buf.seek(0)
result.put(buf)
else:
path = features = None
if isinstance(options, VectorRenderOptions):
style, features, render_size, \
extended, target_box = options
layer = self._qgs_memory_layer(style,
features=features)
elif isinstance(options, RasterRenderOptions):
style, path, render_size, \
extended, target_box = options
layer = QgsRasterLayer(path)
layer.loadNamedStyle(
self.env.file_storage.filename(style.qml_fileobj))
settings = QgsMapSettings()
settings.setLayers([layer.id()])
settings.setFlag(QgsMapSettings.DrawLabeling)
settings.setFlag(QgsMapSettings.Antialiasing)
settings.setCrsTransformEnabled(True)
settings.setDestinationCrs(layer.crs())
settings.setMapUnits(layer.crs().mapUnits())
settings.setOutputSize(QSize(*render_size))
settings.setExtent(QgsRectangle(*extended))
settings.setOutputImageFormat(QImage.Format_ARGB32)
bgcolor = QColor.fromRgba(qRgba(255, 255, 255, 0))
settings.setBackgroundColor(bgcolor)
settings.setOutputDpi(96)
QgsMapLayerRegistry.instance().addMapLayer(layer)
settings.setLayers([layer.id()])
# Create QImage by hand to be able to use
# QgsMapRendererCustomPainterJob. Others will not
# allow to workaround a bug with overlay rendering.
img = QImage(settings.outputSize(), QImage.Format_ARGB32)
# These cludges are needed for rendering
# on transparent background, otherwise it's a mess.
img.fill(QColor.fromRgba(qRgba(255, 255, 255, 255)))
img.fill(QColor.fromRgba(qRgba(255, 255, 255, 0)))
# DPI should be equal to settings, otherwise an error.
# In QImage the resolution is set in dots per meter
# for each axis.
dpm = settings.outputDpi() / 25.4 * 1000
img.setDotsPerMeterX(dpm)
img.setDotsPerMeterY(dpm)
painter = QPainter(img)
job = QgsMapRendererCustomPainterJob(settings, painter)
job.renderSynchronously()
painter.end()
QgsMapLayerRegistry.instance().removeAllMapLayers()
img = self._qimage_to_pil(img)
# Clip needed part
result.put(img.crop(target_box))
# Cleanup
if path is not None:
gdal.Unlink(path)
except Exception as exc:
self.logger.error(exc.message)
result.put(exc)
qgis.exitQgis()
class AuxiliaryWindow(QMainWindow):
closed = pyqtSignal( int )
def __init__(self, parent, geometryWin, numWin):
def populateStatusBar():
statusBar = self.statusBar()
w = QCheckBox( "Render", self )
w.setObjectName( 'renderCheck')
w.setToolTip( "Toggle map rendering" )
w.setChecked( True )
statusBar.addPermanentWidget( w )
w = QCheckBox( "Marker", self )
w.setObjectName( 'markerCheck')
w.setToolTip( "Toggle marker with cursor position from main map" )
w.setChecked( False )
statusBar.addPermanentWidget( w, 1 )
w = QCheckBox( "Extent", self )
w.setObjectName( 'extentCheck')
w.setToolTip( "Show extent of main map" )
w.setChecked( False )
statusBar.addPermanentWidget( w, 1 )
w = QToolButton(self)
w.setObjectName( 'highlightBtn')
w.setToolTip( "Highlight extent in main map" )
w.setText("Highlight")
statusBar.addPermanentWidget( w, 1 )
w = QLabel( "Scale factor:", self )
w.setObjectName( 'scaleFactorLabel')
w.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
statusBar.addPermanentWidget( w, 1 )
w = QDoubleSpinBox(self)
w.setObjectName( 'scaleFactorSpin')
w.setToolTip( "Current scale factor of main map" )
w.setMinimum(0.0)
w.setMaximum(1000.0)
w.setDecimals(3)
w.setValue(1)
w.setSingleStep(.05)
statusBar.addPermanentWidget( w, 1 )
w = QToolButton(self)
w.setObjectName( 'scaleBtn')
w.setToolTip( "Set scale for main map" )
w.setText("Scale: ")
statusBar.addPermanentWidget( w, 1 )
def setupUi():
self.setObjectName( "AuxiliaryWindow" )
self.setGeometry( geometryWin )
self.addDockWidget ( Qt.LeftDockWidgetArea, self.dockLegend )
self.actLegend = self.menuBar().addAction("")
self.actLegend.triggered.connect( self.onActionLegend )
self.canvas.setMapTool( self.toolPan )
self.canvas.setCanvasColor( QColor(255,255,255) )
self.canvas.enableAntiAliasing( False )
self.canvas.useImageToRender( False )
self.canvas.setWheelAction( QgsMapCanvas.WheelZoom )
self.setCentralWidget( centralWidget )
self.messageBar.setSizePolicy( QSizePolicy.Minimum, QSizePolicy.Fixed )
layout = QGridLayout()
layout.setContentsMargins( 0, 0, 0, 0 )
layout.addWidget( self.canvas, 0, 0, 2, 1 )
layout.addWidget( self.messageBar, 0, 0, 1, 1 )
centralWidget.setLayout( layout )
super( AuxiliaryWindow, self ).__init__( parent )
centralWidget = QWidget( self )
self.canvas = QgsMapCanvas( centralWidget )
self.messageBar = QgsMessageBar( centralWidget )
self.toolPan = QgsMapToolPan( self.canvas )
self.qgisCanvas = qgis.utils.iface.mapCanvas()
self.qgisTView = qgis.utils.iface.layerTreeView()
self.qgisSyncGroup = None
self.numWin = numWin
self.ltg = QgsLayerTreeGroup('', Qt.Unchecked)
self.dockLegend = AuxiliaryLegend( self, numWin )
self.root = QgsProject.instance().layerTreeRoot()
self.extent = self.actLegend = None
self.marker = MarkerWindow( self.canvas )
setupUi()
populateStatusBar()
self.onCurrentLayerChanged( None )
self.onDestinationCrsChanged_MapUnitsChanged()
self.onHasCrsTransformEnabledChanged( self.qgisCanvas.hasCrsTransformEnabled() )
def _connect(self, isConnect = True):
widgets = {
'scaleBtn': self.findChild( QToolButton, 'scaleBtn'),
'renderCheck': self.findChild( QCheckBox, 'renderCheck'),
'markerCheck': self.findChild( QCheckBox, 'markerCheck'),
'extentCheck': self.findChild( QCheckBox, 'extentCheck'),
'highlightBtn': self.findChild( QToolButton, 'highlightBtn'),
'scaleFactorSpin': self.findChild( QDoubleSpinBox, 'scaleFactorSpin')
}
signal_slot = (
{ 'signal': widgets['scaleBtn'].clicked, 'slot': self.onClickedScale },
{ 'signal': widgets['renderCheck'].toggled, 'slot': self.onToggledRender },
{ 'signal': widgets['markerCheck'].toggled, 'slot': self.onToggledMarker },
{ 'signal': widgets['extentCheck'].toggled, 'slot': self.onToggledExtent },
{ 'signal': widgets['highlightBtn'].clicked, 'slot': self.onClickedHighlight },
{ 'signal': widgets['scaleFactorSpin'].valueChanged, 'slot': self.onValueChangedScale },
{ 'signal': self.dockLegend.currentLayerChanged, 'slot': self.onCurrentLayerChanged },
{ 'signal': self.dockLegend.currentLayerQgis, 'slot': self.onCurrentLayerQgis },
{ 'signal': self.dockLegend.syncGroupLayer, 'slot': self.onSyncGroupAddLayersQgis },
{ 'signal': self.dockLegend.addSelectedLayersQgis, 'slot': self.onAddSelectedLayersQgis },
{ 'signal': self.dockLegend.removeLayer, 'slot': self.onRemoveLayers },
{ 'signal': self.dockLegend.needSelectLayer, 'slot': self.onNeedSelectLayer },
{ 'signal': self.dockLegend.closed, 'slot': self.onClosedLegend },
{ 'signal': self.canvas.extentsChanged, 'slot': self.onExtentsChangedMirror },
{ 'signal': self.qgisCanvas.extentsChanged, 'slot': self.onExtentsChangedQgisCanvas },
{ 'signal': self.qgisCanvas.xyCoordinates, 'slot': self.marker.onXYCoordinates },
{ 'signal': self.qgisCanvas.destinationCrsChanged, 'slot': self.onDestinationCrsChanged_MapUnitsChanged },
{ 'signal': self.qgisCanvas.mapUnitsChanged, 'slot': self.onDestinationCrsChanged_MapUnitsChanged },
{ 'signal': self.qgisCanvas.hasCrsTransformEnabledChanged, 'slot': self.onHasCrsTransformEnabledChanged },
{ 'signal': self.root.removedChildren, 'slot': self.onRemovedChildrenQgisRoot },
{ 'signal': QgsMapLayerRegistry.instance().layersWillBeRemoved, 'slot': self.onLayersWillBeRemoved }
)
if isConnect:
for item in signal_slot:
item['signal'].connect( item['slot'] )
else:
for item in signal_slot:
item['signal'].disconnect( item['slot'] )
def _extentsChanged(self, canvasOrigin, originSlot, canvasDest, scaleFactor=None):
canvasOrigin.extentsChanged.disconnect( originSlot )
if scaleFactor is None:
scale = canvasOrigin.scale()
canvasOrigin.setExtent( canvasDest.extent() )
canvasOrigin.zoomScale( scale )
else:
canvasOrigin.setExtent( canvasDest.extent() )
canvasOrigin.zoomScale( scaleFactor * canvasDest.scale() )
canvasOrigin.extentsChanged.connect( originSlot )
def _textScaleBtnChanched(self):
scale = locale.format( "%.0f", self.canvas.scale(), True )
w = self.findChild( QToolButton, 'scaleBtn' )
w.setText("Scale 1:%s" % scale )
def _extent(self):
rect = self.qgisCanvas.extent()
p1 = QgsPoint( rect.xMinimum() , rect.yMinimum() )
p2 = QgsPoint( rect.xMinimum() , rect.yMaximum() )
p3 = QgsPoint( rect.xMaximum() , rect.yMaximum() )
p4 = QgsPoint( rect.xMaximum() , rect.yMinimum() )
p5 = QgsPoint( rect.xMinimum() , rect.yMinimum() )
points = [ p1, p2, p3, p4, p5 ]
self.extent.setToGeometry(QgsGeometry.fromPolyline (points), None)
def _execFunction( self, func, arg, signal, slot):
signal.disconnect( slot )
func( arg )
signal.connect( slot )
def _connectVectorRefresh(self, layer, isConnect=True):
if isinstance( layer, QgsVectorLayer ):
f = layer.editCommandEnded.connect if isConnect else layer.editCommandEnded.disconnect
f( self.canvas.refresh )
def _addLayersQgis( self, layersQgis, needMsg=True ):
self.dockLegend.clearBridge()
l1 = set( layersQgis )
l2 = set( map( lambda item: item.layer(), self.ltg.findLayers() ) )
layers = list( l1 - l2 )
if len( layers ) == 0:
if needMsg:
self.messageBar.pushMessage("Need select new layer(s) in main map", QgsMessageBar.WARNING, 2 )
else:
# Get order by layersQgis
for item in layersQgis:
if item in layers:
self.ltg.addLayer( item )
self._connectVectorRefresh( item )
self.dockLegend.setBridge( self.canvas )
def _syncGroupAddLayersQgis( self, ltg ):
layersQgis = map( lambda item: item.layer(), ltg.findLayers() )
if len( layersQgis ) == 0:
return False
name = ltg.name()
if self.qgisSyncGroup == ltg:
msg = "Already synchronized group (main map) -> '%s'" % name
self.messageBar.pushMessage( msg, QgsMessageBar.INFO, 4 )
return True
if not self.qgisSyncGroup is None:
self.qgisSyncGroup.addedChildren.disconnect( self.addedChildrenLayer )
self.qgisSyncGroup = ltg
self.qgisSyncGroup.addedChildren.connect( self.addedChildrenLayer )
self.dockLegend.addNameSyncGroup( name )
msg = "Changed synchronized group (main map) -> '%s'" % name
self.messageBar.pushMessage( msg, QgsMessageBar.INFO, 4 )
self._addLayersQgis( layersQgis )
return True
def run(self):
if len( self.qgisTView.selectedLayerNodes() ) > 0:
self.onAddSelectedLayersQgis()
else:
ltn = self.qgisTView.currentNode()
if not isinstance( ltn, QgsLayerTreeGroup ):
return False
else:
if ltn == self.root:
return False
else:
if not self._syncGroupAddLayersQgis( ltn ):
return False
self.dockLegend.setBridge( self.canvas)
self.canvas.setRenderFlag( False )
self.show() # Need show before self._connect()
self._connect()
self.canvas.setExtent( self.qgisCanvas.extent() )
w = self.findChild( QDoubleSpinBox, 'scaleFactorSpin')
w.setValue( 1 )
self.canvas.setRenderFlag( True )
return True
def getLayersCanvas(self):
layerIds = map(lambda x: x.layerId(), self.ltg.findLayers() )
layerChecks = map(lambda x: str( x.isVisible() ), self.ltg.findLayers() )
return ( layerIds, layerChecks )
def setLayersCanvas(self, layerIds, layerChecks ):
prevFlag = self.canvas.renderFlag()
self.canvas.setRenderFlag( False )
lyrRegs = QgsMapLayerRegistry.instance()
for id in range( len( layerIds ) ):
layer = lyrRegs.mapLayer( layerIds[id] )
isVisible = int( layerChecks[id] )
if not layer is None:
self.ltg.addLayer( layer ).setVisible( isVisible )
self.canvas.setRenderFlag( prevFlag )
def getWindowSetting(self):
g = self.geometry()
r = self.canvas.extent()
nodes = self.ltg.findLayers()
currentLayer = self.dockLegend.tview.currentLayer()
currentLayerId = currentLayer.id() if not currentLayer is None else "None"
windowSetting = {
'numWin': self.numWin,
'geometryWin': { 'x': g.x(), 'y': g.y(), 'width': g.width(), 'height': g.height() },
'extentCanvas': { 'xmin': r.xMinimum(), 'ymin': r.yMinimum(), 'xmax': r.xMaximum(), 'ymax': r.yMaximum() },
'currentLayerId': currentLayerId,
'layerIds' : ' '.join( map(lambda item: item.layerId(), nodes ) ),
'visibles': ' '.join( map(lambda item: str( int( item.isVisible() ) ), nodes ) )
}
for item in ( 'render', 'marker', 'extent' ):
nameGui = "%sCheck" % item
windowSetting[ item ] = int( self.findChild( QCheckBox, nameGui).isChecked() )
return windowSetting
def setWindowSetting(self, windowSetting):
self.numWin = windowSetting['numWin']
# Populate with layers and set Bridge for legend
layerIds = windowSetting['layerIds'].split(' ')
visibles = map( lambda item: bool( int( item ) ), windowSetting['visibles'].split(' ') )
ltg = self.qgisTView.layerTreeModel().rootGroup()
for id in range( len( layerIds ) ):
node = ltg.findLayer( layerIds[ id ] )
if node is None:
continue
layer = node.layer()
visible = Qt.Checked if visibles[ id ] else Qt.Unchecked
self._connectVectorRefresh( layer )
self.ltg.addLayer( layer ).setVisible( visible )
self.dockLegend.setBridge( self.canvas)
self.show() # Need show before self._connect()
self._connect()
node = ltg.findLayer( windowSetting['currentLayerId'] )
if not node is None:
layer = node.layer()
self.dockLegend.tview.setCurrentLayer( layer )
w = windowSetting['extentCanvas']
self.canvas.setExtent( QgsRectangle( w['xmin'], w['ymin'], w['xmax'], w['ymax'] ) )
for item in ( 'render', 'marker', 'extent' ):
value = bool( windowSetting[ item ] )
nameGui = "%sCheck" % item
self.findChild( QCheckBox, nameGui ).setChecked( value )
def closeEvent(self, event):
self._connect( False )
event.accept()
self.closed.emit( self.numWin )
@pyqtSlot(int)
def onValueChangedScale(self, scaleFactor):
w = self.findChild( QCheckBox, 'renderCheck')
if not w.isChecked():
return
self._execFunction(
self.canvas.zoomScale, scaleFactor * self.qgisCanvas.scale(),
self.canvas.extentsChanged, self.onExtentsChangedMirror
)
self._textScaleBtnChanched()
@pyqtSlot()
def onClickedScale(self):
self._execFunction(
self.qgisCanvas.zoomScale, self.canvas.scale(),
self.qgisCanvas.extentsChanged, self.onExtentsChangedQgisCanvas
)
w = self.findChild( QDoubleSpinBox, 'scaleFactorSpin' )
self._execFunction( w.setValue, 1.0, w.valueChanged, self.onValueChangedScale )
@pyqtSlot()
def onClickedHighlight(self):
def removeRB():
rb.reset( True )
self.qgisCanvas.scene().removeItem( rb )
rb = QgsRubberBand( self.qgisCanvas, QGis.Polygon)
rb.setBorderColor( QColor( 255, 0, 0 ) )
rb.setWidth( 2 )
rb.setToGeometry( QgsGeometry.fromRect( self.canvas.extent() ), None )
QTimer.singleShot( 2000, removeRB )
@pyqtSlot(bool)
def onToggledRender(self, enabled):
if enabled:
self.canvas.setMapTool(self.toolPan)
w = self.findChild( QDoubleSpinBox, 'scaleFactorSpin' )
self._extentsChanged( self.canvas, self.onExtentsChangedMirror, self.qgisCanvas, w.value() )
self._textScaleBtnChanched()
self.canvas.setWheelAction( QgsMapCanvas.WheelZoom )
else:
self.canvas.unsetMapTool(self.toolPan)
self.canvas.setWheelAction( QgsMapCanvas.WheelNothing )
self.canvas.setRenderFlag( enabled )
@pyqtSlot(bool)
def onToggledMarker(self, enabled):
self.marker.add() if enabled else self.marker.remove()
@pyqtSlot(bool)
def onToggledExtent(self, enabled):
def setExtent():
if not self.extent is None:
self.canvas.scene().removeItem( self.extent )
self.extent = QgsRubberBand( self.canvas, QGis.Polygon )
self.extent.setBorderColor( QColor( 255, 0 , 0 ) )
self.extent.setWidth( 2 )
self._extent()
if enabled:
setExtent()
else:
if not self.extent is None:
self.canvas.scene().removeItem( self.extent )
self.extent = None
@pyqtSlot()
def onExtentsChangedMirror(self):
w = self.findChild( QCheckBox, 'renderCheck')
if not w.isChecked():
return
self._extentsChanged( self.qgisCanvas, self.onExtentsChangedQgisCanvas, self.canvas )
self._textScaleBtnChanched()
w = self.findChild( QDoubleSpinBox, 'scaleFactorSpin' )
self._execFunction(
w.setValue, self.canvas.scale() / self.qgisCanvas.scale(),
w.valueChanged, self.onValueChangedScale
)
if not self.extent is None:
self._extent()
@pyqtSlot()
def onExtentsChangedQgisCanvas(self):
w = self.findChild( QCheckBox, 'renderCheck')
if not w.isChecked():
return
w = self.findChild( QDoubleSpinBox, 'scaleFactorSpin' )
self._extentsChanged( self.canvas, self.onExtentsChangedMirror, self.qgisCanvas, w.value() )
self._textScaleBtnChanched()
if not self.extent is None:
self._extent()
@pyqtSlot()
def onDestinationCrsChanged_MapUnitsChanged(self):
prevFlag = self.canvas.renderFlag()
self.canvas.setRenderFlag( False )
self.canvas.setDestinationCrs( self.qgisCanvas.mapRenderer().destinationCrs() )
self.canvas.setMapUnits( self.qgisCanvas.mapUnits() )
self.canvas.setRenderFlag( prevFlag )
@pyqtSlot(bool)
def onHasCrsTransformEnabledChanged(self, enabled):
prevFlag = self.canvas.renderFlag()
self.canvas.setRenderFlag( False )
self.canvas.mapRenderer().setProjectionsEnabled( enabled )
self.canvas.setRenderFlag( prevFlag )
@pyqtSlot(list)
def onLayersWillBeRemoved( self, theLayerIds ):
ids = list( set( self.ltg.findLayerIds() ) & set( theLayerIds ) ) # intersection
nodes = map( lambda item: self.ltg.findLayer( item ), ids )
for item in nodes:
self._connectVectorRefresh( item.layer(), False )
self.ltg.removeChildNode( item )
@pyqtSlot()
def onAddSelectedLayersQgis( self ):
layersQgis = map( lambda item: item.layer(), self.qgisTView.selectedLayerNodes() )
self._addLayersQgis( layersQgis )
@pyqtSlot('QgsLayerTreeNode', int, int)
def addedChildrenLayer(self, ltg, indexFrom, indexTo):
layersQgis = map( lambda item: item.layer(), ltg.findLayers() )
self._addLayersQgis( layersQgis, False )
@pyqtSlot('QgsLayerTreeNode', int, int)
def onRemovedChildrenQgisRoot(self, ltg, indexFrom, indexTo):
if not self.qgisSyncGroup is None and not self.qgisSyncGroup in self.root.children():
self.qgisSyncGroup = None
self.dockLegend.addNameSyncGroup( "None" )
msg = "Removed synchronized group (main map)"
self.messageBar.pushMessage( msg, QgsMessageBar.INFO, 4 )
@pyqtSlot()
def onSyncGroupAddLayersQgis( self):
msg = "Need active a group in main map with new layers"
ltn = self.qgisTView.currentNode()
if not isinstance( ltn, QgsLayerTreeGroup ) or ltn == self.root:
self.messageBar.pushMessage( msg, QgsMessageBar.WARNING, 3 )
return
if not self._syncGroupAddLayersQgis( ltn ):
self.messageBar.pushMessage( msg, QgsMessageBar.WARNING, 3 )
@pyqtSlot( 'QgsMapLayer' )
def onRemoveLayers( self, layer ):
self._connectVectorRefresh(layer, False)
@pyqtSlot()
def onNeedSelectLayer(self):
self.messageBar.pushMessage("Need select layer(s)", QgsMessageBar.WARNING, 2 )
@pyqtSlot('QgsMapLayer')
def onCurrentLayerQgis(self, layer ):
if layer is None:
self.messageBar.pushMessage("Need active layer", QgsMessageBar.WARNING, 2 )
else:
self.qgisTView.setCurrentLayer( layer )
@pyqtSlot('QgsMapLayer')
def onCurrentLayerChanged(self, layer ):
hasLayer = True if not layer is None else False
selectName = "Select layer '%s'" % layer.name() if hasLayer else "None select layer"
title = "#%d - %s" % ( self.numWin, selectName )
self.setWindowTitle( title )
@pyqtSlot()
def onClosedLegend(self):
self.actLegend.setText( "Show layers" )
@pyqtSlot()
def onActionLegend(self):
self.actLegend.setText( "" )
self.dockLegend.show()
