def mousePressEvent(self, event):
if not event.button():
event.ignore()
return
event.accept()
opt = QStyleOptionSlider()
self.initStyleOption(opt)
self.__active_slider = -1
for i, value in enumerate((self.__min_position, self.__max_position)):
opt.sliderPosition = value
if self._hitTestHandle(opt, event.pos()):
self.__active_slider = i
self.__pressed_control = QStyle.SC_SliderHandle
self.triggerAction(self.SliderMove)
self.setRepeatAction(self.SliderNoAction)
self.setSliderDown(True)
break
else:
# If the user clicks the groove between the handles, the whole
# interval is moved
self.__pressed_control = QStyle.SC_SliderGroove
self.__click_offset = self._pixelPosToRangeValue(self._pick(event.pos()))
self.triggerAction(self.SliderMove)
self.setRepeatAction(self.SliderNoAction)
def mouseMoveEvent(self, event):
if self.__pressed_control not in (QStyle.SC_SliderGroove,
QStyle.SC_SliderHandle):
event.ignore()
return
event.accept()
opt = QStyleOptionSlider()
self.initStyleOption(opt)
pos = self._pixelPosToRangeValue(self._pick(event.pos()))
if self.__active_slider < 0:
offset = pos - self.__click_offset
self.__max_position = min(self.__max_position + offset,
self.maximum())
self.__min_position = max(self.__min_position + offset,
self.minimum())
self.__click_offset = pos
else:
if self.__active_slider == 0:
self.__min_position = max(self.minimum(), pos)
self.__max_position = min(
self.maximum(),
max(self.__max_position, self.__min_position + 1))
else:
self.__max_position = min(self.maximum(), pos)
self.__min_position = max(
self.minimum(),
min(self.__min_position, self.__max_position - 1))
self.update()
self.slidersMoved.emit(self.__min_position, self.__max_position)
# This is different from QAbstractSlider, which sets the value
# insider triggerAction() which would be called here instead.
# But I don't want to override that as well, so simply:
if self.hasTracking():
self.setValues(self.__min_position, self.__max_position)
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 mouseMoveEvent(self, event):
if self.__pressed_control not in (QStyle.SC_SliderGroove,
QStyle.SC_SliderHandle):
event.ignore()
return
event.accept()
opt = QStyleOptionSlider()
self.initStyleOption(opt)
pos = self._pixelPosToRangeValue(self._pick(event.pos()))
if self.__new_selection_drawing_origin:
# Drawing new time window
if pos <= self.__click_offset and self.__active_slider != 0:
self.__active_slider = 0
self._max_position = self.__new_selection_drawing_origin[1]
elif pos > self.__click_offset and self.__active_slider != 1:
self.__active_slider = 1
self._min_position = self.__new_selection_drawing_origin[0]
if self.__active_slider < 0:
# Moving the time window
width = self._max_position - self._min_position
offset = pos - self.__click_offset
if offset >= 0:
self._max_position = min(self.maximum(),
self._max_position + offset)
self._min_position = max(self.minimum(),
min(self._min_position + offset,
self._max_position - width))
else:
self._min_position = max(self.minimum(),
self._min_position + offset)
self._max_position = min(self.maximum(),
max(self._max_position + offset,
self._min_position + width))
self.__click_offset = pos
else:
# Moving a handle
if self.__active_slider == 0:
if not self.__new_selection_drawing_origin \
and self._max_position <= pos < self.maximum():
# Flip to other slider
self.__active_slider = 1
self._min_position = self._max_position
self._max_position = min(self.maximum(),
max(pos,
self._min_position + 1))
else:
self._min_position = max(self.minimum(),
min(pos,
self._max_position - 1))
else:
if not self.__new_selection_drawing_origin \
and self.minimum() < pos <= self._min_position:
# Flip to other slider
self.__active_slider = 0
self._max_position = self._min_position
self._min_position = max(self.minimum(),
min(pos,
self._max_position - 1))
else:
self._max_position = min(self.maximum(),
max(pos,
self._min_position + 1))
self.update()
self.slidersMoved.emit(self._min_position, self._max_position)
# This is different from QAbstractSlider, which sets the value
# insider triggerAction() which would be called here instead.
# But I don't want to override that as well, so simply:
if self.hasTracking():
self.__tracked_selection = (self._min_position, self._max_position)
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, e):
#print("hover: ",self._hover,",press: ",self._press)
painter = QStylePainter(self)
# prepare the drawing options
# for drawing slider groove
opt = QStyleOptionSlider()
opt.initFrom(self)
opt.subControls = QStyle.SC_SliderGroove
opt.maximum = self.__steps
opt.minimum = 0
opt.orientation = self.orientation()
opt.sliderPosition = self.__position0
opt.sliderValue = self.__value0
if self._tickList is not None:
opt.tickPosition = QSlider.TicksBelow
else:
opt.tickPosition = QSlider.NoTicks
handleWidth = self._handleWidth
measureWidth = self.width() - handleWidth - handleWidth
painter.drawComplexControl(QStyle.CC_Slider, opt)
# draw tickmarks
if self._tickList is not None:
painter.drawPixmap(self._handleWidth,
self.height() - self._tickHeight,
self._tickImage)
# handle colors
colorPRESS = QColor(204, 204, 204)
colorHOVER = QColor(23, 23, 23)
colorNORMAL = QColor(0, 122, 217) if self.isEnabled() else colorPRESS
handleHeight = self.height(
) if self._tickList is None else self.height() - self._tickHeight
# draw handle 0
if self._press in {0, 2}:
color = colorPRESS
elif self._hover == 0:
color = colorHOVER
else:
color = colorNORMAL
self._rects[0] = r0 = QRect(
self.__position0 / self.__steps * measureWidth, 0, handleWidth,
handleHeight)
painter.fillRect(self._rects[0], color)
# draw handle 1
if self._press in {1, 2}:
color = colorPRESS
elif self._hover == 1:
color = colorHOVER
else:
color = colorNORMAL
self._rects[1] = r1 = QRect(
self.__position1 / self.__steps * measureWidth + handleWidth, 0,
handleWidth, handleHeight)
painter.fillRect(self._rects[1], color)
# draw inner handle
if self._press == 2 or not self.isEnabled():
color = QColor(0, 0, 0, 15)
elif self._hover == 2:
color = QColor(0, 61, 108, 63)
else:
color = QColor(0, 122, 217, 63)
self._rects[2] = QRect(r0.left(), r0.top(),
r1.right() - r0.left() + 1, handleHeight)
painter.fillRect(self._rects[2], color)