def copyOptions(self):
opt = QStyleOptionSlider()
opt.initFrom(self._slider)
opt.maximum = self._slider.maximum()
opt.minimum = self._slider.minimum()
opt.orientation = self._slider.orientation()
opt.pageStep = self._slider.pageStep()
opt.singleStep = self._slider.singleStep()
return opt
def paintEvent(self, event: QPaintEvent) -> None:
"""
Render the scrollbars using Qt's draw control, and render the frame elements
dependent on whether the partner horizontal / vertical scrollbar is also visible
"""
painter = QStylePainter(self)
if self.orientation() == Qt.Vertical:
painter.translate(0.0, self.frame_width)
else:
painter.translate(self.frame_width, 0.0)
option = QStyleOptionSlider()
option.initFrom(self)
option.maximum = self.maximum()
option.minimum = self.minimum()
option.pageStep = self.pageStep()
option.singleStep = self.singleStep()
option.sliderPosition = self.sliderPosition()
option.orientation = self.orientation()
if self.orientation() == Qt.Horizontal:
option.state |= QStyle.State_Horizontal
rect = self.renderRect()
option.rect = rect
option.palette = self.palette()
option.subControls = (
QStyle.SC_ScrollBarAddLine
| QStyle.SC_ScrollBarSubLine
| QStyle.SC_ScrollBarAddPage
| QStyle.SC_ScrollBarSubPage
| QStyle.SC_ScrollBarFirst
| QStyle.SC_ScrollBarLast
)
painter.fillRect(
option.rect, QApplication.palette().window().color().darker(102)
)
self.style().drawComplexControl(QStyle.CC_ScrollBar, option, painter)
# Highlight the handle (slider) on mouse over, otherwise render it as normal
option.subControls = QStyle.SC_ScrollBarSlider
if option.state & QStyle.State_MouseOver == QStyle.State_MouseOver:
palette = self.palette()
if sys.platform == "win32":
color = self.palette().base().color()
else:
color = self.palette().button().color().lighter(102)
palette.setColor(QPalette.Button, color)
option.palette = palette
self.style().drawComplexControl(QStyle.CC_ScrollBar, option, painter)
# Render the borders
painter.resetTransform()
painter.setPen(self.midPen)
self.renderEdges(painter)
def copyOptions(self) :
opt = QStyleOptionSlider()
opt.initFrom(self._slider)
opt.maximum = self._slider.maximum();
opt.minimum = self._slider.minimum();
opt.orientation = self._slider.orientation()
opt.pageStep = self._slider.pageStep()
opt.singleStep = self._slider.singleStep()
return opt
def paintEvent(self, e):
super(LabeledSlider, self).paintEvent(e)
style = self.sl.style()
painter = QPainter(self)
st_slider = QStyleOptionSlider()
st_slider.initFrom(self.sl)
st_slider.orientation = self.sl.orientation()
length = style.pixelMetric(QStyle.PM_SliderLength, st_slider, self.sl)
available = style.pixelMetric(QStyle.PM_SliderSpaceAvailable,
st_slider, self.sl)
for v, v_str in self.levels:
# get the size of the label
rect = painter.drawText(QRect(), Qt.TextDontPrint, v_str)
if self.sl.orientation() == Qt.Horizontal:
# I assume the offset is half the length of slider, therefore
# + length//2
x_loc = QStyle.sliderPositionFromValue(self.sl.minimum(),
self.sl.maximum(), v,
available) + length // 2
# left bound of the text = center - half of text width + L_margin
left = x_loc - rect.width() // 2 + self.left_margin
bottom = self.rect().bottom()
# enlarge margins if clipping
if v == self.sl.minimum():
if left <= 0:
self.left_margin = rect.width() // 2 - x_loc
if self.bottom_margin <= rect.height():
self.bottom_margin = rect.height()
self.layout.setContentsMargins(self.left_margin,
self.top_margin,
self.right_margin,
self.bottom_margin)
if v == self.sl.maximum(
) and rect.width() // 2 >= self.right_margin:
self.right_margin = rect.width() // 2
self.layout.setContentsMargins(self.left_margin,
self.top_margin,
self.right_margin,
self.bottom_margin)
else:
y_loc = QStyle.sliderPositionFromValue(self.sl.minimum(),
self.sl.maximum(),
v,
available,
upsideDown=True)
bottom = y_loc + length // 2 + rect.height(
) // 2 + self.top_margin - 3
# there is a 3 px offset that I can't attribute to any metric
left = self.left_margin - rect.width()
if left <= 0:
self.left_margin = rect.width() + 2
self.layout.setContentsMargins(self.left_margin,
self.top_margin,
self.right_margin,
self.bottom_margin)
pos = QPoint(left, bottom)
painter.drawText(pos, v_str)
return
