def export_to_pdf(self: 'BaseWidget', filename: Path):
width_a4 = 730
height_a4 = 1060
is_landscape = self.width() > self.height()
if is_landscape:
self.resize(height_a4, width_a4) # landscape
else:
self.resize(width_a4, height_a4) # portrait
# render widget to picture
picture = QPicture()
painter = QPainter(picture)
self.render(painter, QPoint(0, 0))
painter.end()
# set up PDF printer
printer = QPrinter()
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName(str(filename))
if is_landscape:
printer.setOrientation(QPrinter.Landscape)
# draw picture on printer
painter = QPainter()
ok = painter.begin(printer)
if ok:
painter.drawPicture(0, 0, picture)
ok = painter.end()
return ok
def generatePlotFormat(plot, width, height):
picture = QPicture()
qcpPainter = QCPPainter()
qcpPainter.begin(picture)
plot.toPainter(qcpPainter, width, height)
qcpPainter.end()
result = QTextCharFormat()
result.setObjectType(MainWindow.QCPTextFormat)
result.setProperty(MainWindow.QCPData, picture)
return result
def testFromData(self):
picture = QPicture()
painter = QPainter()
painter.begin(picture)
painter.drawEllipse(10, 20, 80, 70)
painter.end()
data = picture.data()
picture2 = QPicture()
picture2.setData(data)
self.assertEqual(picture2.data(), picture.data())
w = MyWidget()
w._picture = picture2
w._app = self.app
QTimer.singleShot(300, w.show)
self.app.exec_()
def testFromData(self):
picture = QPicture()
painter = QPainter()
painter.begin(picture)
painter.drawEllipse(10, 20, 80, 70)
painter.end()
data = picture.data()
picture2 = QPicture()
picture2.setData(data)
self.assertEqual(picture2.data(), picture.data())
w = MyWidget()
w._picture = picture2
w._app = self.app
QTimer.singleShot(300, w.show)
self.app.exec_()