def paintEvent(self, event):
rect = QRect(10, 20, 80, 60)
path = QPainterPath()
path.moveTo(20, 80)
path.lineTo(20, 30)
path.cubicTo(80, 0, 50, 50, 80, 80)
startAngle = 30 * 16
arcLength = 120 * 16
painter = QPainter(self)
painter.setPen(self.pen)
painter.setBrush(self.brush)
if self.antialiased:
painter.setRenderHint(QPainter.Antialiasing)
for x in range(0, self.width(), 100):
for y in range(0, self.height(), 100):
painter.save()
painter.translate(x, y)
if self.transformed:
painter.translate(50, 50)
painter.rotate(60.0)
painter.scale(0.6, 0.9)
painter.translate(-50, -50)
if self.shape == RenderArea.Line:
painter.drawLine(rect.bottomLeft(), rect.topRight())
elif self.shape == RenderArea.Points:
painter.drawPoints(RenderArea.points)
elif self.shape == RenderArea.Polyline:
painter.drawPolyline(RenderArea.points)
elif self.shape == RenderArea.Polygon:
painter.drawPolygon(RenderArea.points)
elif self.shape == RenderArea.Rect:
painter.drawRect(rect)
elif self.shape == RenderArea.RoundedRect:
painter.drawRoundedRect(rect, 25, 25, Qt.RelativeSize)
elif self.shape == RenderArea.Ellipse:
painter.drawEllipse(rect)
elif self.shape == RenderArea.Arc:
painter.drawArc(rect, startAngle, arcLength)
elif self.shape == RenderArea.Chord:
painter.drawChord(rect, startAngle, arcLength)
elif self.shape == RenderArea.Pie:
painter.drawPie(rect, startAngle, arcLength)
elif self.shape == RenderArea.Path:
painter.drawPath(path)
elif self.shape == RenderArea.Text:
painter.drawText(rect, Qt.AlignCenter,
"PySide 2\nQt %s" % qVersion())
elif self.shape == RenderArea.Pixmap:
painter.drawPixmap(10, 10, self.pixmap)
painter.restore()
painter.setPen(self.palette().dark().color())
painter.setBrush(Qt.NoBrush)
painter.drawRect(QRect(0, 0, self.width() - 1, self.height() - 1))
def paint(self, painter: QtGui.QPainter,
option: QtWidgets.QStyleOptionViewItem,
index: QtCore.QModelIndex):
painter.save()
options = QtWidgets.QStyleOptionViewItem(option)
self.initStyleOption(options, index)
painter.translate(options.rect.left(), options.rect.top())
doc = QtGui.QTextDocument()
doc.setHtml(self.makeHtml(index.data()))
doc.drawContents(painter)
painter.restore()
def paintEvent(self, event):
painter = QPainter(self)
painter.fillRect(self.rect(), Qt.black)
if self.pixmap.isNull():
painter.setPen(Qt.white)
painter.drawText(self.rect(), Qt.AlignCenter,
"Rendering initial image, please wait...")
return
if self.curScale == self.pixmapScale:
painter.drawPixmap(self.pixmapOffset, self.pixmap)
else:
scaleFactor = self.pixmapScale / self.curScale
newWidth = int(self.pixmap.width() * scaleFactor)
newHeight = int(self.pixmap.height() * scaleFactor)
newX = self.pixmapOffset.x() + (self.pixmap.width() - newWidth) / 2
newY = self.pixmapOffset.y() + (self.pixmap.height() -
newHeight) / 2
painter.save()
painter.translate(newX, newY)
painter.scale(scaleFactor, scaleFactor)
exposed, _ = painter.transform().inverted()
exposed = exposed.mapRect(self.rect()).adjusted(-1, -1, 1, 1)
painter.drawPixmap(exposed, self.pixmap, exposed)
painter.restore()
text = "Use mouse wheel or the '+' and '-' keys to zoom. Press and " \
"hold left mouse button to scroll."
metrics = painter.fontMetrics()
textWidth = metrics.horizontalAdvance(text)
painter.setPen(Qt.NoPen)
painter.setBrush(QColor(0, 0, 0, 127))
painter.drawRect((self.width() - textWidth) / 2 - 5, 0, textWidth + 10,
metrics.lineSpacing() + 5)
painter.setPen(Qt.white)
painter.drawText((self.width() - textWidth) / 2,
metrics.leading() + metrics.ascent(), text)
def paintEvent(self, event):
paint = QPainter()
paint.begin(self)
paint.save()
size = self.size()
width = size.width()
height = size.height()
units = self.data.get('units')
proportion = self.getProportion()
horizontalOrientation = self.data.get('horizontal_orientation')
if horizontalOrientation:
rulerLength = width
traceLengthLimit = height
else: # vertical orientation
rulerLength = height
traceLengthLimit = width
paint.translate(width, 0)
paint.rotate(90)
# the length of the traces (lines)
small = traceLengthLimit / 6
medium = traceLengthLimit / 4
large = traceLengthLimit / 3
limit = rulerLength / proportion
# draw less lines for centimeters
if units == 'cm':
step = 10
else:
step = 5
# begin drawing
fontSize = 10
font = QFont('Serif', fontSize)
fontMetrics = QFontMetrics(font)
# draw background
background = self.data.get('background_color')
paint.fillRect(0, 0, rulerLength, traceLengthLimit, background)
# draw the lines
paint.setPen(self.data.get('lines_color'))
paint.setFont(font)
# the builtin range() doesn't support floats
def float_range(current, end, rangeStep):
while current < end:
yield current
current += rangeStep
# we skip 0 and start in the first step, since there's no point in drawing the first line/text (it would appear cut off, since we're at the limit)
for a in float_range(step, limit, step):
position = a * proportion
if (a % 100) == 0:
lineLength = large
if units == 'px':
text = '{}{}'.format(str(a), units)
else:
text = '{}{}'.format(str(int(a / 100)), units)
textWidth = fontMetrics.boundingRect(text).width()
paint.drawText(position - textWidth / 2,
traceLengthLimit / 2 + fontSize / 2, text)
elif (a % 50) == 0:
lineLength = large
# since 'cm' has a different step compared to the other units
if units == 'cm':
lineLength = medium
elif (a % 25) == 0:
lineLength = medium
else:
lineLength = small
paint.drawLine(position, 0, position, lineLength)
paint.drawLine(position, traceLengthLimit, position,
traceLengthLimit - lineLength)
# paint the division lines
if self.data.get('division_lines'):
paint.setPen(self.data.get('divisions_color'))
halfPoint = rulerLength / 2
quarterPoint = rulerLength / 4
threeQuarterPoint = 3 / 4 * rulerLength
paint.drawLine(quarterPoint, 0, quarterPoint, traceLengthLimit)
paint.drawLine(halfPoint, 0, halfPoint, traceLengthLimit)
paint.drawLine(threeQuarterPoint, 0, threeQuarterPoint,
traceLengthLimit)
paint.restore()
paint.end()