def subRenderer(self, color):
lineSymbol = QgsLineSymbolV2()
arrowSymbol = QgsArrowSymbolLayer().create()
arrowSymbol.setArrowWidth(0.0)
arrowSymbol.setArrowStartWidth(0.0)
arrowSymbol.setColor(color)
arrowSymbol.setIsCurved(False)
arrowSymbol.setIsRepeated(False)
renderSetting = QgsRenderContext()
renderSetting.setFlag(QgsRenderContext.Antialiasing, False)
renderSetting.setFlag(QgsRenderContext.DrawSymbolBounds, False)
renderSetting.setFlag(QgsRenderContext.ForceVectorOutput, False)
renderSetting.setFlag(QgsRenderContext.UseAdvancedEffects, False)
renderSetting.setFlag(QgsRenderContext.UseRenderingOptimization, False)
arrEffectStack = arrowSymbol.paintEffect()
effList = arrEffectStack.effectList()
for i in range(0, len(effList)):
if type(effList[i]) == QgsDrawSourceEffect:
effList[i].setDrawMode(1)
arrEffectStack.setEnabled(True)
lineSymbol.appendSymbolLayer(arrowSymbol)
return lineSymbol
def testSetPainterFlags(self):
rc = QgsRenderContext()
p = QPainter()
im = QImage(1000, 600, QImage.Format_RGB32)
p.begin(im)
rc.setPainterFlagsUsingContext(p)
self.assertFalse(p.testRenderHint(QPainter.Antialiasing))
try:
self.assertFalse(p.testRenderHint(QPainter.LosslessImageRendering))
except AttributeError:
pass
rc.setPainter(p)
rc.setFlag(QgsRenderContext.Antialiasing, True)
rc.setFlag(QgsRenderContext.LosslessImageRendering, True)
rc.setPainterFlagsUsingContext(p)
self.assertTrue(p.testRenderHint(QPainter.Antialiasing))
try:
self.assertTrue(p.testRenderHint(QPainter.LosslessImageRendering))
except AttributeError:
pass
p.end()