I'm so stupid...
I have read the API, I have modified and given the correct variable but I
forgot to change the name of the function ... Lose as much time besause i'm
stupid ... It is by reading your post justin that I realized it. Because
actually the name of the function does not match what I call for my return
value. So it works very well ... I have a small problem but that is linked
to what I read on the internet to QT / PySide with the draw text. I have a
Direct crash during the drawText. I know how to get around it with labels
but it's not very clean. If I find a solution I will post it here. That's
where I am at the moment. I picked up two things on the internet to make a
slider with text and also a range slider.
#
================================================================================
# Import Modules
#
================================================================================
import os
import sys
from PySide import QtGui, QtCore
# ==========================================================
# TreeView
# ==========================================================
class RDSlider(QtGui.QSlider):
# ======================================================
# Init
# ======================================================
def __init__(self, qt_orientation=QtCore.Qt.Horizontal, qt_parent=None,
**kwargs):
super(RDSlider, self).__init__(qt_orientation, qt_parent)
# Init UI
self.setMinimum(kwargs.get("min", 0))
self.setMaximum(kwargs.get("max", 10))
self.setSingleStep(1)
self.setPageStep(1)
if kwargs.get("ticks", True) is True:
self.setTickPosition(kwargs.get("ticks_position",
QtGui.QSlider.TicksBelow))
self.__b_range_slider = kwargs.get("range_slider", False)
self.__b_ticks_text = kwargs.get("ticks_text", False)
# Range slider
self.__low = self.minimum()
self.__high = self.maximum()
self.__pressed_control = QtGui.QStyle.SC_None
self.__hover_control = QtGui.QStyle.SC_None
self.__click_offset = 0
self.__active_slider = 0
# ======================================================
# QT EVENT
# ======================================================
def paintEvent(self, event):
event.accept()
qt_painter = QtGui.QPainter(self)
style = QtGui.QApplication.style()
# ==================================================
# For range slider
if self.__b_range_slider is True:
for i, value in enumerate([self.__low, self.__high]):
qt_options = QtGui.QStyleOptionSlider()
self.initStyleOption(qt_options)
qt_options.subControls = QtGui.QStyle.SC_SliderHandle
if self.tickPosition() != self.NoTicks:
qt_options.subControls |=
QtGui.QStyle.SC_SliderTickmarks
if self.__pressed_control:
qt_options.activeSubControls = self.__pressed_control
qt_options.state |= QtGui.QStyle.State_Sunken
else:
qt_options.activeSubControls = self.__hover_control
qt_options.sliderPosition = value
qt_options.sliderValue = value
style.drawComplexControl(QtGui.QStyle.CC_Slider,
qt_options, qt_painter, self)
else:
super(RDSlider, self).paintEvent(event)
# ==================================================
# For text
if self.__b_ticks_text is True:
i_range = (self.maximum() - self.minimum()) + 1
for i in xrange(i_range):
# Get text and offset
s_text = "toto %s" % i
i_text_offset = -self.__get_text_offset(s_text)
if i == 0:
i_text_offset = 0.0
elif i != i_range - 1:
i_text_offset /= 2.0
# Draw text
if self.orientation() == QtCore.Qt.Horizontal:
qt_pos = QtCore.QPoint(self.__get_pos_from_value(i) +
i_text_offset, self.rect().bottom())
else:
qt_pos = QtCore.QPoint(self.rect().left(),
self.__get_pos_from_value(i) + i_text_offset)
qt_painter.drawText(qt_pos, s_text)
def mousePressEvent(self, event):
if self.__b_range_slider is True:
event.accept()
style = QtGui.QApplication.style()
button = event.button()
# In a normal slider control, when the user clicks on a point
in the
# slider's total range, but not on the slider part of the
control the
# control would jump the slider value to where the user clicked.
# For this control, clicks which are not direct hits will slide
both
# slider parts
if button:
qt_options = QtGui.QStyleOptionSlider()
self.initStyleOption(qt_options)
self.__active_slider = -1
for i, value in enumerate([self.__low, self.__high]):
qt_options.sliderPosition = value
hit = style.hitTestComplexControl(style.CC_Slider,
qt_options, event.pos(), self)
if hit == style.SC_SliderHandle:
self.__active_slider = i
self.__pressed_control = hit
self.triggerAction(self.SliderMove)
self.setRepeatAction(self.SliderNoAction)
self.setSliderDown(True)
break
if self.__active_slider < 0:
self.__pressed_control = QtGui.QStyle.SC_SliderHandle
self.__click_offset =
self.__get_value_from_pos(self.__pick(event.pos()))
self.triggerAction(self.SliderMove)
self.setRepeatAction(self.SliderNoAction)
else:
event.ignore()
else:
super(RDSlider, self).mousePressEvent(event)
event.ignore()
def mouseMoveEvent(self, event):
if self.__b_range_slider is True:
if self.__pressed_control != QtGui.QStyle.SC_SliderHandle:
event.ignore()
return
event.accept()
new_pos = self.__get_value_from_pos(self.__pick(event.pos()))
qt_options = QtGui.QStyleOptionSlider()
self.initStyleOption(qt_options)
if self.__active_slider < 0:
offset = new_pos - self.__click_offset
self.__high += offset
self.__low += offset
if self.__low < self.minimum():
diff = self.minimum() - self.__low
self.__low += diff
self.__high += diff
if self.__high > self.maximum():
diff = self.maximum() - self.__high
self.__low += diff
self.__high += diff
elif self.__active_slider == 0:
if new_pos >= self.__high:
new_pos = self.__high - 1
self.__low = new_pos
else:
if new_pos <= self.__low:
new_pos = self.__low + 1
self.__high = new_pos
self.__click_offset = new_pos
self.update()
self.emit(QtCore.SIGNAL('sliderMoved(int)'), new_pos)
else:
super(RDSlider, self).mouseMoveEvent(event)
event.ignore()
# ======================================================
# MISC
# ======================================================
def __pick(self, qt_point):
"""
!@Brief Mouse position from slider orientation
@type qt_point: QtGui.QPoint
@param qt_point: Mouse position
@rtype: float
@return: Value X or Y from slider orientation.
"""
if self.orientation() == QtCore.Qt.Horizontal:
return qt_point.x()
else:
return qt_point.y()
def __get_pos_from_value(self, i_value):
"""
!@Brief Get Pixel position of slider ticks.
@type i_value: int
@param i_value: Tick value.
@rtype: int
@return: Tick pixel position.
"""
qt_options = QtGui.QStyleOptionSlider()
self.initStyleOption(qt_options)
qt_style = QtGui.QApplication.style()
slider_groove = qt_style.subControlRect(qt_style.CC_Slider,
qt_options, qt_style.SC_SliderGroove, self)
slider_handle = qt_style.subControlRect(qt_style.CC_Slider,
qt_options, qt_style.SC_SliderHandle, self)
if self.orientation() == QtCore.Qt.Horizontal:
slider_length = slider_handle.width()
slider_min = slider_groove.x()
slider_max = slider_groove.right() - slider_length + 1
else:
slider_length = slider_handle.height()
slider_min = slider_groove.y()
slider_max = slider_groove.bottom() - slider_length + 1
return qt_style.sliderPositionFromValue(
self.minimum(),
self.maximum(),
i_value,
slider_max - slider_min,
qt_options.upsideDown
)
def __get_value_from_pos(self, f_pos):
"""
!@Brief Get Tick value from position.
@type f_pos: float
@param f_pos: Mouse position.
@rtype: int
@return: Tick value.
"""
qt_options = QtGui.QStyleOptionSlider()
self.initStyleOption(qt_options)
style = QtGui.QApplication.style()
slider_groove = style.subControlRect(style.CC_Slider, qt_options,
style.SC_SliderGroove, self)
slider_handle = style.subControlRect(style.CC_Slider, qt_options,
style.SC_SliderHandle, self)
if self.orientation() == QtCore.Qt.Horizontal:
slider_length = slider_handle.width()
slider_min = slider_groove.x()
slider_max = slider_groove.right() - slider_length + 1
else:
slider_length = slider_handle.height()
slider_min = slider_groove.y()
slider_max = slider_groove.bottom() - slider_length + 1
return style.sliderValueFromPosition(
self.minimum(),
self.maximum(),
f_pos - slider_min,
slider_max - slider_min,
qt_options.upsideDown
)
def __get_text_offset(self, s_text):
"""
!@Brief Get text length offset.
@type s_text: string
@param s_text: Text for get size.
@rtype: int
@return: Offset length.
"""
# Size from orientation
if self.orientation() == QtCore.Qt.Horizontal:
f_size = self.rect().width()
else:
f_size = self.rect().height()
qt_painter = QtGui.QPainter(self)
qt_font_metric = qt_painter.fontMetrics()
f_text_size = float(qt_font_metric.width(s_text))
i_percent_offset = (f_text_size / f_size) * 100.0
f_offset = f_size / 100.0 * i_percent_offset
return f_offset
# =============================================================
# INIT Script
# =============================================================
def main():
"""
!@Brief Main function for launch ui.
"""
app = QtGui.QApplication(sys.argv)
slider = RDSlider(min=0, max=6, range_slider=True)
slider.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
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