def unload(self):
QgsRendererV2Registry.instance().removeRenderer('MilStd2525Renderer')
try:
from milstd2525.tests import testerplugin
from qgistester.tests import removeTestModule
removeTestModule(testerplugin, 'MIL-STD-2525')
except:
pass
def testAddRenderer(self):
""" test adding renderers to registry """
clearRegistry()
# add a renderer
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(TestRenderer('test2')))
self.assertTrue('test2' in QgsRendererV2Registry.instance().renderersList())
# try adding it again - should be rejected due to duplicate name
self.assertFalse(QgsRendererV2Registry.instance().addRenderer(TestRenderer('test2')))
self.assertTrue('test2' in QgsRendererV2Registry.instance().renderersList())
def testInstance(self):
""" test retrieving global instance """
self.assertTrue(QgsRendererV2Registry.instance())
# instance should be initially populated with some default renderers
self.assertTrue('singleSymbol' in QgsRendererV2Registry.instance().renderersList())
# register a renderer to the singleton, to test that the same instance is always returned
self.assertFalse('test' in QgsRendererV2Registry.instance().renderersList())
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(TestRenderer('test')))
self.assertTrue('test' in QgsRendererV2Registry.instance().renderersList())
def __init__(self, iface):
self.iface = iface
'''Create the renderer objects'''
self._rendererMetadata = MilStd2525RendererMetadata()
self._widgetWrapperFactory = SIDCWidgetWrapperFactory()
'''
and register them so they are shown when the user edits the layer
symbology
'''
QgsRendererV2Registry.instance().addRenderer(self._rendererMetadata)
QgsEditorWidgetRegistry.instance().registerWidget('SIDC code editor', self._widgetWrapperFactory)
def __init__(self, iface):
self.iface = iface
try:
from milstd2525.tests import testerplugin
from qgistester.tests import addTestModule
addTestModule(testerplugin, 'MIL-STD-2525')
except:
pass
self._rendererMetadata = MilStd2525RendererMetadata()
self._widgetWrapperFactory = SIDCWidgetWrapperFactory()
QgsRendererV2Registry.instance().addRenderer(self._rendererMetadata)
QgsEditorWidgetRegistry.instance().registerWidget('SIDC code editor', self._widgetWrapperFactory)
def __init__(self, iface):
self.iface = iface
try:
from .tests import testerplugin
from qgistester.tests import addTestModule
addTestModule(testerplugin, 'MIL-STD-2525')
except:
pass
self._rendererMetadata = MilStd2525RendererMetadata()
self._widgetWrapperFactory = SIDCWidgetWrapperFactory()
QgsRendererV2Registry.instance().addRenderer(self._rendererMetadata)
QgsEditorWidgetRegistry.instance().registerWidget('SIDC code editor', self._widgetWrapperFactory)
def testRetrieveRenderer(self):
""" test retrieving renderer by name """
clearRegistry()
# try non-existant renderer
self.assertFalse(QgsRendererV2Registry.instance().rendererMetadata('test4'))
# now add it
r = TestRenderer('test4')
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r))
# try retrieving it
result = QgsRendererV2Registry.instance().rendererMetadata('test4')
self.assertTrue(result)
self.assertEqual(result.name(), 'test4')
def testRenderersByLayerType(self):
""" test retrieving compatible renderers by layer type """
clearRegistry()
# add some renderers
r1 = TestRenderer('test1', QgsRendererV2AbstractMetadata.PointLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r1))
r2 = TestRenderer('test2', QgsRendererV2AbstractMetadata.LineLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r2))
r3 = TestRenderer('test3', QgsRendererV2AbstractMetadata.PolygonLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r3))
r4 = TestRenderer('test4', QgsRendererV2AbstractMetadata.PointLayer | QgsRendererV2AbstractMetadata.LineLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r4))
# make some layers
point_layer = QgsVectorLayer("Point?field=fldtxt:string",
"pointlayer", "memory")
line_layer = QgsVectorLayer("LineString?field=fldtxt:string",
"linelayer", "memory")
polygon_layer = QgsVectorLayer("Polygon?field=fldtxt:string",
"polylayer", "memory")
# test subsets
self.assertEqual(QgsRendererV2Registry.instance().renderersList(point_layer), ['singleSymbol', 'test1', 'test4'])
self.assertEqual(QgsRendererV2Registry.instance().renderersList(line_layer), ['singleSymbol', 'test2', 'test4'])
self.assertEqual(QgsRendererV2Registry.instance().renderersList(polygon_layer), ['singleSymbol', 'test3'])
def unload(self):
QgsRendererV2Registry.instance().removeRenderer('MilStd2525Renderer')
removeHelpMenu("MIL-STD-2525")
removeAboutMenu("MIL-STD-2525")
try:
from milstd2525.tests import testerplugin
from qgistester.tests import removeTestModule
removeTestModule(testerplugin, 'MIL-STD-2525')
except:
pass
try:
from lessons import removeLessonsFolder
folder = os.path.join(pluginPath, '_lessons')
removeLessonsFolder(folder)
except:
pass
def testRenderersList(self):
""" test getting list of renderers from registry """
clearRegistry()
self.assertEqual(QgsRendererV2Registry.instance().renderersList(), ['singleSymbol'])
# add some renderers
r1 = TestRenderer('test1', QgsRendererV2AbstractMetadata.PointLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r1))
r2 = TestRenderer('test2', QgsRendererV2AbstractMetadata.LineLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r2))
r3 = TestRenderer('test3', QgsRendererV2AbstractMetadata.PolygonLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r3))
r4 = TestRenderer('test4', QgsRendererV2AbstractMetadata.PointLayer | QgsRendererV2AbstractMetadata.LineLayer)
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(r4))
self.assertEqual(QgsRendererV2Registry.instance().renderersList(), ['singleSymbol', 'test1', 'test2', 'test3', 'test4'])
# test subsets
self.assertEqual(QgsRendererV2Registry.instance().renderersList(QgsRendererV2AbstractMetadata.PointLayer), ['singleSymbol', 'test1', 'test4'])
self.assertEqual(QgsRendererV2Registry.instance().renderersList(QgsRendererV2AbstractMetadata.LineLayer), ['singleSymbol', 'test2', 'test4'])
self.assertEqual(QgsRendererV2Registry.instance().renderersList(QgsRendererV2AbstractMetadata.PolygonLayer), ['singleSymbol', 'test3'])
self.assertEqual(QgsRendererV2Registry.instance().renderersList(QgsRendererV2AbstractMetadata.LineLayer | QgsRendererV2AbstractMetadata.PolygonLayer), ['singleSymbol', 'test2', 'test3', 'test4'])
def testRemoveRenderer(self):
""" test removing renderers from registry """
clearRegistry()
# try removing non-existant renderer
self.assertFalse(QgsRendererV2Registry.instance().removeRenderer('test3'))
# now add it
self.assertTrue(QgsRendererV2Registry.instance().addRenderer(TestRenderer('test3')))
self.assertTrue('test3' in QgsRendererV2Registry.instance().renderersList())
# try removing it again - should be ok this time
self.assertTrue(QgsRendererV2Registry.instance().removeRenderer('test3'))
self.assertFalse('test3' in QgsRendererV2Registry.instance().renderersList())
# try removing it again - should be false since already removed
self.assertFalse(QgsRendererV2Registry.instance().removeRenderer('test3'))
def clearRegistry():
# clear registry to start with
for r in QgsRendererV2Registry.instance().renderersList():
if r == 'singleSymbol':
continue
QgsRendererV2Registry.instance().removeRenderer(r)
def unload(self):
'''Remove the renderer when the plugin is unloaded'''
QgsRendererV2Registry.instance().removeRenderer('MilStd2525Renderer')
removeHelpMenu("GeoGig")
def initGui(self):
# QgsSymbolLayerV2Registry.instance().addSymbolLayerType( VectorArrowMarkerMetadata() )
self._controller = VectorFieldRendererController(self._iface)
self._metadata = VectorFieldRendererMetadata(self._controller)
QgsRendererV2Registry.instance().addRenderer(self._metadata)
class RandomRendererMetadata(QgsRendererV2AbstractMetadata):
def __init__(self):
QgsRendererV2AbstractMetadata.__init__(
self,
"RandomRenderer",
"Random renderer"
)
def createRenderer(self, element):
return RandomRenderer()
def createRendererWidget(self, layer, style, renderer):
return RandomRendererWidget(layer, style, renderer)
QgsRendererV2Registry.instance().addRenderer(RandomRendererMetadata())
print(QgsRendererV2Registry.instance().renderersList())
print(QgsRendererV2Registry.instance().rendererMetadata(u'RandomRenderer'))
layer, canvas = iface.activeLayer(), iface.mapCanvas()
style = QgsStyleV2.defaultStyle()
random_renderer_widget = RandomRendererWidget(
layer,
style,
RandomRenderer()
)
# random_renderer_widget.show()
