def testRenderRegion(self):
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
# add a guide, to ensure it is not included in export
g1 = QgsLayoutGuide(Qt.Horizontal, QgsLayoutMeasurement(15, QgsUnitTypes.LayoutMillimeters), l.pageCollection().page(0))
l.guides().addGuide(g1)
# add some items
item1 = QgsLayoutItemShape(l)
item1.attemptSetSceneRect(QRectF(10, 20, 100, 150))
fill = QgsSimpleFillSymbolLayer()
fill_symbol = QgsFillSymbol()
fill_symbol.changeSymbolLayer(0, fill)
fill.setColor(Qt.green)
fill.setStrokeStyle(Qt.NoPen)
item1.setSymbol(fill_symbol)
l.addItem(item1)
# get width/height, create image and render the composition to it
size = QSize(560, 509)
output_image = QImage(size, QImage.Format_RGB32)
output_image.setDotsPerMeterX(self.dots_per_meter)
output_image.setDotsPerMeterY(self.dots_per_meter)
QgsMultiRenderChecker.drawBackground(output_image)
painter = QPainter(output_image)
exporter = QgsLayoutExporter(l)
exporter.renderRegion(painter, QRectF(5, 10, 110, 100))
painter.end()
rendered_file_path = os.path.join(self.basetestpath, 'test_renderregion.png')
output_image.save(rendered_file_path, "PNG")
self.assertTrue(self.checkImage('renderregion', 'renderregion', rendered_file_path))
def testLayout(self, page=0, pixelDiff=0):
if self.layout is None:
myMessage = "Layout not valid"
return False, myMessage
# load expected image
self.setControlName("expected_" + self.test_name)
# get width/height, create image and render the composition to it
outputImage = QImage(self.size, QImage.Format_RGB32)
outputImage.setDotsPerMeterX(self.dots_per_meter)
outputImage.setDotsPerMeterY(self.dots_per_meter)
QgsMultiRenderChecker.drawBackground(outputImage)
p = QPainter(outputImage)
self.layout.exporter().renderPage(p, page)
p.end()
renderedFilePath = QDir.tempPath() + QDir.separator() + QFileInfo(self.test_name).baseName() + "_rendered.png"
outputImage.save(renderedFilePath, "PNG")
self.setRenderedImage(renderedFilePath)
testResult = self.runTest(self.test_name, pixelDiff)
return testResult, self.report()
def testRenderPage(self):
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
# add some items
item1 = QgsLayoutItemShape(l)
item1.attemptSetSceneRect(QRectF(10, 20, 100, 150))
fill = QgsSimpleFillSymbolLayer()
fill_symbol = QgsFillSymbol()
fill_symbol.changeSymbolLayer(0, fill)
fill.setColor(Qt.green)
fill.setStrokeStyle(Qt.NoPen)
item1.setSymbol(fill_symbol)
l.addItem(item1)
# get width/height, create image and render the composition to it
size = QSize(1122, 794)
output_image = QImage(size, QImage.Format_RGB32)
output_image.setDotsPerMeterX(self.dots_per_meter)
output_image.setDotsPerMeterY(self.dots_per_meter)
QgsMultiRenderChecker.drawBackground(output_image)
painter = QPainter(output_image)
exporter = QgsLayoutExporter(l)
# valid page
exporter.renderPage(painter, 0)
painter.end()
rendered_file_path = os.path.join(self.basetestpath, 'test_renderpage.png')
output_image.save(rendered_file_path, "PNG")
self.assertTrue(self.checkImage('renderpage', 'renderpage', rendered_file_path))
def imageCheck(self, name, reference_image, image):
self.report += "<h2>Render {}</h2>\n".format(name)
temp_dir = QDir.tempPath() + '/'
file_name = temp_dir + 'svg_' + name + ".png"
output_image = QImage(image.size(), QImage.Format_RGB32)
QgsMultiRenderChecker.drawBackground(output_image)
painter = QPainter(output_image)
painter.drawImage(0, 0, image)
painter.end()
output_image.save(file_name, "PNG")
checker = QgsRenderChecker()
checker.setControlPathPrefix("svg_cache")
checker.setControlName("expected_" + reference_image)
checker.setRenderedImage(file_name)
checker.setColorTolerance(2)
result = checker.compareImages(name, 20)
self.report += checker.report()
print((self.report))
return result
def imageCheck(self, name, reference_image, image):
self.report += "<h2>Render {}</h2>\n".format(name)
temp_dir = QDir.tempPath() + '/'
file_name = temp_dir + 'svg_' + name + ".png"
output_image = QImage(image.size(), QImage.Format_RGB32)
QgsMultiRenderChecker.drawBackground(output_image)
painter = QPainter(output_image)
painter.drawImage(0, 0, image)
painter.end()
output_image.save(file_name, "PNG")
checker = QgsRenderChecker()
checker.setControlPathPrefix("svg_cache")
checker.setControlName("expected_" + reference_image)
checker.setRenderedImage(file_name)
checker.setColorTolerance(2)
result = checker.compareImages(name, 20)
self.report += checker.report()
print((self.report))
return result
