def __init__(self, id, name, datatype, source, ressource):
# unfortunately there is no option to retrieve the layer geometry (i. e.
# point/line/polygon for vectorlayers) just from the json object.
# Therefore they get a default polygon icon which will be updated as soon as
# layer is added as WFS to QGIS - see def addQgsLayer()
if datatype == 'Raster':
self.icon = QgsLayerItem.iconRaster()
elif datatype == 'Vector':
self.icon = QgsLayerItem.iconPolygon()
else:
self.icon = QgsLayerItem.iconDefault()
TreeItem.__init__(self, self.icon, name)
self.id = id
self.actiontype = 'layer'
self.ressource = ressource
self.dlg = None
self.name = name
self.source = source
self.datatype = datatype
self.qgisLayers = []
self.settings = {
'name': '',
'appearance': {
'hoverTemplate': None,
'opacity': 1
}
}
if PYTHON_VERSION >= 3:
QgsProject.instance().layerRemoved.connect(self.updateLayerList)
else:
QgsMapLayerRegistry.instance().layerRemoved.connect(
self.updateLayerList)
def icon_per_geometry_type(geometry_type: str):
"""Return the icon for a geometry type.
If not found, it will return the default icon.
:param geometry_type: The geometry as a string.
:type geometry_type: basestring
:return: The icon.
:rtype: QIcon
"""
geometry_type = geometry_type.lower()
if geometry_type == "raster":
return QgsLayerItem.iconRaster()
elif geometry_type == "mesh":
return QgsLayerItem.iconMesh()
elif geometry_type == "point":
return QgsLayerItem.iconPoint()
elif geometry_type == "line":
return QgsLayerItem.iconLine()
elif geometry_type == "polygon":
return QgsLayerItem.iconPolygon()
elif geometry_type == "no geometry":
return QgsLayerItem.iconTable()
else:
return QgsLayerItem.iconDefault()
def __init__(self, parent, name, path, lyr_object=None, layer_path=''):
super().__init__(QgsDataItem.Custom, parent, name, path)
self.setCapabilities(QgsDataItem.Fertile | QgsDataItem.Collapse)
self.layer_path = layer_path or path
self.object = lyr_object
if path:
self.setIcon(GuiUtils.get_icon('icon.svg'))
elif isinstance(self.object, (GroupLayer, BaseMapLayer)):
self.setIcon(QgsDataCollectionItem.iconDir())
elif self.object.__class__.__name__ in ('WmsMapLayer', 'RasterLayer'):
self.setIcon(QgsLayerItem.iconRaster())
else:
wkb_type = VectorLayerConverter.layer_to_wkb_type(self.object)
geometry_type = QgsWkbTypes.geometryType(wkb_type)
if geometry_type == QgsWkbTypes.PointGeometry:
self.setIcon(QgsLayerItem.iconPoint())
elif geometry_type == QgsWkbTypes.LineGeometry:
self.setIcon(QgsLayerItem.iconLine())
elif geometry_type == QgsWkbTypes.PolygonGeometry:
self.setIcon(QgsLayerItem.iconPolygon())
else:
self.setIcon(QgsLayerItem.iconDefault())
if self.object:
if isinstance(self.object, (GroupLayer, BaseMapLayer)):
self.add_children()
self.setState(QgsDataItem.Populated)
self.setToolTip(
QDir.toNativeSeparators(path) if not lyr_object else lyr_object.
name)
self.child_items = []
def addQgsLayer(self, iface):
currentCrs = iface.mapCanvas().mapSettings().destinationCrs()
if currentCrs.isValid():
epsg = currentCrs.authid()
else:
epsg = 'EPSG:3857'
# layerutils
layer = createLayer(self, epsg)
if not layer:
return
qgisLayerItem = QgisLayerItem(layer, self, self.ressource)
self.qgisLayers.append(qgisLayerItem)
self.addChild(qgisLayerItem)
self.setExpanded(True)
#for an odd reason there appears a warning below the layer if it is a
#wms layer from shogun - workaround to hide this:
if layer.dataProvider().name(
) == 'wms' and self.source['url'].startswith('/shogun2-webapp/'):
root = QgsProject.instance().layerTreeRoot()
layerNode = root.findLayer(layer.id())
layerNode.setExpanded(False)
# when the layer has loaded for the first time and it's icon
# is still on iconDefault, update the icon with the correct geometry
if not self.datatype == 'Raster':
if layer.type() == QgsMapLayer.VectorLayer:
geom = layer.geometryType()
if PYTHON_VERSION >= 3:
if geom == QgsWkbTypes.PointGeometry:
self.icon = QgsLayerItem.iconPoint()
elif geom == QgsWkbTypes.LineGeometry:
self.icon = QgsLayerItem.iconLine()
elif geom == QgsWkbTypes.PolygonGeometry:
self.icon = QgsLayerItem.iconPolygon()
else:
if geom == QGis.Point:
self.icon = QgsLayerItem.iconPoint()
elif geom == QGis.Line:
self.icon = QgsLayerItem.iconLine()
elif geom == QGis.Polygon:
self.icon = QgsLayerItem.iconPolygon()
else:
self.icon = QgsLayerItem.iconRaster()
self.setIcon(0, self.icon)
def icon_for_geometry_type(geometry_type: str) -> QIcon():
""" Return the correct icon according to the geometry type. """
if geometry_type == NULL:
return QgsLayerItem.iconTable()
elif geometry_type == 'POINT':
return QgsLayerItem.iconPoint()
elif geometry_type == 'LINESTRING':
return QgsLayerItem.iconLine()
elif geometry_type == 'MULTIPOLYGON':
return QgsLayerItem.iconPolygon()
# Default icon
return QIcon(resources_path('icons', 'icon.png'))
def layer_icon(layer):
"""Helper to get the layer icon.
:param layer: A layer.
:type layer: QgsMapLayer
:returns: The icon for the given layer.
:rtype: QIcon
"""
if is_raster_layer(layer):
return QgsLayerItem.iconRaster()
elif is_point_layer(layer):
return QgsLayerItem.iconPoint()
elif is_line_layer(layer):
return QgsLayerItem.iconLine()
elif is_polygon_layer(layer):
return QgsLayerItem.iconPolygon()
else:
return QgsLayerItem.iconDefault()
def layer_icon(layer):
"""Helper to get the layer icon.
:param layer: A layer.
:type layer: QgsMapLayer
:returns: The icon for the given layer.
:rtype: QIcon
"""
if is_raster_layer(layer):
return QgsLayerItem.iconRaster()
elif is_point_layer(layer):
return QgsLayerItem.iconPoint()
elif is_line_layer(layer):
return QgsLayerItem.iconLine()
elif is_polygon_layer(layer):
return QgsLayerItem.iconPolygon()
else:
return QgsLayerItem.iconDefault()