def paintEvent(self, event):
# based on
# https://github.com/qt/qtbase/blob/f40dbe0d0b54ce83d2168e82905cf4f75059a841/src/widgets/widgets/qslider.cpp#L315
# https://github.com/enthought/traitsui/blob/master/traitsui/qt4/extra/range_slider.py
painter = QStylePainter(self)
minpos = self.__min_position
maxpos = self.__max_position
# Draw the groove
opt = QStyleOptionSlider()
self.initStyleOption(opt)
# Draw empty grove
opt.sliderPosition = opt.minimum
opt.subControls = QStyle.SC_SliderGroove
if self.tickPosition() != self.NoTicks:
opt.subControls |= QStyle.SC_SliderTickmarks
painter.drawComplexControl(QStyle.CC_Slider, opt)
# Draw the highlighted part on top
# Qt4.8 and Qt5.3 draw the highlighted groove in a weird way because they
# transpose opt.rect. Qt5.7 works fine.
if QT_VERSION_STR >= '5.7.0':
opt.subControls = QStyle.SC_SliderGroove
opt.sliderPosition = opt.maximum
if self.orientation() == Qt.Horizontal:
_w = opt.rect.width() / opt.maximum
x = round(_w * minpos)
w = round(_w * (maxpos - minpos))
opt.rect = QRect(x, 0, w, opt.rect.height())
else:
_h = opt.rect.height() / opt.maximum
y = round(_h * minpos)
h = round(_h * (maxpos - minpos))
opt.rect = QRect(0, y, opt.rect.width(), h)
painter.drawComplexControl(QStyle.CC_Slider, opt)
# Draw the handles
for i, position in enumerate((minpos, maxpos)):
opt = QStyleOptionSlider()
self.initStyleOption(opt)
opt.subControls = QStyle.SC_SliderHandle
if self.__pressed_control and (self.__active_slider == i or
self.__active_slider < 0):
opt.activeSubControls = self.__pressed_control
opt.state |= QStyle.State_Sunken
else:
opt.activeSubControls = self.__hovered_control
opt.sliderPosition = position
opt.sliderValue = position
painter.drawComplexControl(QStyle.CC_Slider, opt)
def paintEvent(self, event):
painter = QStylePainter(self)
# ticks
opt = QStyleOptionSlider()
self.initStyleOption(opt)
opt.subControls = QStyle.SC_SliderTickmarks
painter.drawComplexControl(QStyle.CC_Slider, opt)
# groove
opt.sliderPosition = 20
opt.sliderValue = 0
opt.subControls = QStyle.SC_SliderGroove
painter.drawComplexControl(QStyle.CC_Slider, opt)
# handle rects
opt.sliderPosition = self.lowerPos
lr = self.style().subControlRect(QStyle.CC_Slider, opt,
QStyle.SC_SliderHandle, self)
lrv = self.pick(lr.center())
opt.sliderPosition = self.upperPos
ur = self.style().subControlRect(QStyle.CC_Slider, opt,
QStyle.SC_SliderHandle, self)
urv = self.pick(ur.center())
# span
minv = min(lrv, urv)
maxv = max(lrv, urv)
c = self.style().subControlRect(QStyle.CC_Slider, opt,
QStyle.SC_SliderGroove, self).center()
spanRect = QRect(QPoint(c.x() - 2, minv), QPoint(c.x() + 1, maxv))
if self.orientation() == QtCore.Qt.Horizontal:
spanRect = QRect(QPoint(minv, c.y() - 2), QPoint(maxv, c.y() + 1))
self.drawSpan(painter, spanRect)
# handles
if self.lastPressed == QxtSpanSlider.LowerHandle:
self.drawHandle(painter, QxtSpanSlider.UpperHandle)
self.drawHandle(painter, QxtSpanSlider.LowerHandle)
else:
self.drawHandle(painter, QxtSpanSlider.LowerHandle)
self.drawHandle(painter, QxtSpanSlider.UpperHandle)
def paintEvent(self, event):
""" Override the paint event to draw both slider handles.
"""
# based on the paintEvent for QSlider:
# http://qt.gitorious.org/qt/qt/blobs/master/src/gui/widgets/qslider.cpp
painter = QPainter(self)
style = self.style()
low, high = self._low, self._high
# Draw the low handle along with the groove and ticks.
opt = QStyleOptionSlider()
self.initStyleOption(opt)
opt.subControls = QStyle.SC_SliderGroove | QStyle.SC_SliderHandle
if self.tickPosition() != self.NoTicks:
opt.subControls |= QStyle.SC_SliderTickmarks
if (self._pressed_control and
self._active_thumb == self.LowThumb or
self._active_thumb == self.BothThumbs):
opt.activeSubControls = self._pressed_control
opt.state |= QStyle.State_Sunken
else:
opt.activeSubControls = QStyle.SC_None
opt.sliderPosition = low
opt.sliderValue = low
style.drawComplexControl(QStyle.CC_Slider, opt, painter, self)
# Draw high handle. The groove and ticks do not need repainting.
opt = QStyleOptionSlider()
self.initStyleOption(opt)
opt.subControls = QStyle.SC_SliderHandle
if (self._pressed_control and
self._active_thumb == self.HighThumb or
self._active_thumb == self.BothThumbs):
opt.activeSubControls = self._pressed_control
opt.state |= QStyle.State_Sunken
else:
opt.activeSubControls = QStyle.SC_None
opt.sliderPosition = high
opt.sliderValue = high
style.drawComplexControl(QStyle.CC_Slider, opt, painter, self)
def drawHandle(self, painter, handle):
opt = QStyleOptionSlider()
self._initStyleOption(opt, handle)
opt.subControls = QStyle.SC_SliderHandle
pressed = self.upperPressed
if handle == QxtSpanSlider.LowerHandle:
pressed = self.lowerPressed
if pressed == QStyle.SC_SliderHandle:
opt.activeSubControls = pressed
opt.state |= QStyle.State_Sunken
painter.drawComplexControl(QStyle.CC_Slider, opt)
def drawHandle(self, painter, handle):
opt = QStyleOptionSlider()
self._initStyleOption(opt, handle)
opt.subControls = QStyle.SC_SliderHandle
pressed = self.upperPressed
if handle == QxtSpanSlider.LowerHandle:
pressed = self.lowerPressed
if pressed == QStyle.SC_SliderHandle:
opt.activeSubControls = pressed
opt.state |= QStyle.State_Sunken
painter.drawComplexControl(QStyle.CC_Slider, opt)
def paintEvent(self, event):
painter = QStylePainter(self)
# ticks
opt = QStyleOptionSlider()
self.initStyleOption(opt)
opt.subControls = QStyle.SC_SliderTickmarks
painter.drawComplexControl(QStyle.CC_Slider, opt)
# groove
opt.sliderPosition = 20
opt.sliderValue = 0
opt.subControls = QStyle.SC_SliderGroove
painter.drawComplexControl(QStyle.CC_Slider, opt)
# handle rects
opt.sliderPosition = self.lowerPos
lr = self.style().subControlRect(QStyle.CC_Slider, opt, QStyle.SC_SliderHandle, self)
lrv = self.pick(lr.center())
opt.sliderPosition = self.upperPos
ur = self.style().subControlRect(QStyle.CC_Slider, opt, QStyle.SC_SliderHandle, self)
urv = self.pick(ur.center())
# span
minv = min(lrv, urv)
maxv = max(lrv, urv)
c = self.style().subControlRect(QStyle.CC_Slider, opt,
QStyle.SC_SliderGroove, self).center()
spanRect = QRect(QPoint(c.x() - 2, minv), QPoint(c.x() + 1, maxv))
if self.orientation() == QtCore.Qt.Horizontal:
spanRect = QRect(QPoint(minv, c.y() - 2), QPoint(maxv, c.y() + 1))
self.drawSpan(painter, spanRect)
# handles
if self.lastPressed == QxtSpanSlider.LowerHandle:
self.drawHandle(painter, QxtSpanSlider.UpperHandle)
self.drawHandle(painter, QxtSpanSlider.LowerHandle)
else:
self.drawHandle(painter, QxtSpanSlider.LowerHandle)
self.drawHandle(painter, QxtSpanSlider.UpperHandle)
