def test_layerDefinitionRewriteId(self):
tmpfile = os.path.join(tempfile.tempdir, "test.qlr")
ltr = QgsProject.instance().layerTreeRoot()
self.pointsLayer.setDependencies(
[QgsMapLayerDependency(self.linesLayer.id())])
QgsLayerDefinition.exportLayerDefinition(tmpfile, [ltr])
grp = ltr.addGroup("imported")
QgsLayerDefinition.loadLayerDefinition(tmpfile, QgsProject.instance(),
grp)
newPointsLayer = None
newLinesLayer = None
for l in grp.findLayers():
if l.layerId().startswith('points'):
newPointsLayer = l.layer()
elif l.layerId().startswith('lines'):
newLinesLayer = l.layer()
self.assertIsNotNone(newPointsLayer)
self.assertIsNotNone(newLinesLayer)
self.assertTrue(newLinesLayer.id(
) in [dep.layerId() for dep in newPointsLayer.dependencies()])
self.pointsLayer.setDependencies([])
def copy(self):
# Iterate
selectedNodes = self.iface.layerTreeView().selectedNodes(True)
if len(selectedNodes) == 0:
self.iface.messageBar().pushMessage(
"Copy layers and groups",
"First select at least 1 layer or group in the Layers Panel.",
0, 7)
return
doc = QDomDocument("QGIS-layers-and-groups")
QgsLayerDefinition.exportLayerDefinition(doc, selectedNodes, "", "")
tempDir = tempfile.gettempdir()
xmlFilePath = os.path.join(tempDir,
str(time.time()).replace(".", "") + ".qlr")
f = codecs.open(xmlFilePath, 'w', encoding='utf-8')
f.write(doc.toString())
f.close()
self.clipboard.setText(
"@QGIS-layers-and-groups@{}".format(xmlFilePath))
self.iface.messageBar().pushMessage(
"Copy layers and groups",
"Selected layers and/or groups were copied to clipboard.", 0, 5)
def object_to_qlr(
obj,
input_file,
output_path,
context: Context,
use_relative_paths: bool = False) -> Tuple[bool, Optional[str]]:
"""
Converts an ESRI object to QLR
"""
root_node, _ = LayerConverter.object_to_layers_and_tree(
obj, input_file, context)
output_path = QgsFileUtils.ensureFileNameHasExtension(
output_path, ['qlr'])
file = QFile(output_path)
if not file.open(QFile.WriteOnly | QFile.Truncate):
return False, file.errorString()
rw_context = QgsReadWriteContext()
if not use_relative_paths:
rw_context.setPathResolver(QgsPathResolver())
else:
rw_context.setPathResolver(QgsPathResolver(output_path))
doc = QDomDocument("qgis-layer-definition")
res, error = QgsLayerDefinition.exportLayerDefinition(
doc, root_node.children(), rw_context)
if res:
stream = QTextStream(file)
doc.save(stream, 2)
return True, None
return res, error
def test_layerDefinitionRewriteId(self):
tmpfile = os.path.join(tempfile.tempdir, "test.qlr")
ltr = QgsProject.instance().layerTreeRoot()
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
QgsLayerDefinition.exportLayerDefinition(tmpfile, [ltr])
grp = ltr.addGroup("imported")
QgsLayerDefinition.loadLayerDefinition(tmpfile, grp)
newPointsLayer = None
newLinesLayer = None
for l in grp.findLayers():
if l.layerId().startswith('points'):
newPointsLayer = l.layer()
elif l.layerId().startswith('lines'):
newLinesLayer = l.layer()
self.assertFalse(newPointsLayer is None)
self.assertFalse(newLinesLayer is None)
self.assertTrue(newLinesLayer.id() in [dep.layerId() for dep in newPointsLayer.dependencies()])
self.pointsLayer.setDependencies([])
