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Port to PyQt5 #4

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166 changes: 118 additions & 48 deletions QxtSpanSlider.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,40 @@
from PyQt4.QtCore import pyqtSignature, pyqtProperty, SIGNAL, SLOT, QRect, QPoint
from PyQt4.QtGui import QWidget, QAbstractSlider, QSlider, QStyle, QGridLayout, QLabel, QDoubleSpinBox, QGridLayout, QStylePainter, QStyleOption, QStyleOptionSlider, QPen, QPalette, QLinearGradient, QStyleFactory
import PyQt4.QtCore as QtCore
# The MIT License (MIT)

# Copyright (c) 2011-2014 Marvin Killing

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

from PyQt5.QtWidgets import (QApplication,
QAbstractSlider, QSlider,
QStyle, QStylePainter, QStyleOptionSlider)
from PyQt5.QtGui import QPalette, QLinearGradient, QPen, QColor
from PyQt5.QtCore import (Qt,
QRect, QRectF, QPoint,
pyqtSignal as Signal, pyqtProperty as Property
#qtpy can also be used
#from qtpy.QtWidgets import (QApplication,
# QAbstractSlider, QSlider,
# QStyle, QStylePainter, QStyleOptionSlider)
#from qtpy.QtGui import QPalette, QLinearGradient, QPen, QColor
#from qtpy.QtCore import (Qt,
# QRect, QRectF, QPoint,
# Signal, Property)

def clamp(v, lower, upper):
return min(upper, max(lower, v))
Expand All @@ -14,24 +48,17 @@ class QxtSpanSlider(QSlider):
NoCrossing = 1
NoOverlapping = 2

__pyqtSignals__ = ("spanChanged(int, int)",
"lowerValueChanged(int)", "upperValueChanged(int)",
"lowerPositionChanged(int)", "upperPositionChanged(int)",
"sliderPressed(PyQt_PyObject)")
__pyqtSlots__ = ("setLowerValue(int)",
"setUpperValue(int)",
"setSpan(int, int)",
"setLowerPosition(int)",
"setUpperPosition(int)",
"setGradientLeftColor(PyQt_PyObject)",
"setGradientRightColor(PyQt_PyObject)")
spanChanged = Signal(int, int)
lowerValueChanged = Signal(int)
upperValueChanged = Signal(int)
lowerPositionChanged = Signal(int)
upperPositionChanged = Signal(int)
sliderPressed = Signal(object)

def __init__(self, parent = None):
QSlider.__init__(self, QtCore.Qt.Horizontal, parent)
self.connect(self, SIGNAL("rangeChanged(int, int)"), self.updateRange)
self.connect(self, SIGNAL("sliderReleased()"), self.movePressedHandle)

self.setStyle(QStyleFactory.create('Plastique'))
QSlider.__init__(self, Qt.Horizontal, parent)
self.rangeChanged.connect(self.updateRange)
self.sliderReleased.connect(self.movePressedHandle)

self.lower = 0
self.upper = 0
Expand All @@ -46,26 +73,36 @@ def __init__(self, parent = None):
self.mainControl = QxtSpanSlider.LowerHandle
self.firstMovement = False
self.blockTracking = False
self.gradientLeft = self.palette().color(QPalette.Dark).light(110)
self.gradientRight = self.palette().color(QPalette.Dark).light(110)
self.gradientLeft = self.palette().color(QPalette.Dark).lighter(110)
self.gradientRight = self.palette().color(QPalette.Dark).lighter(110)


@Property(int)
def lowerValue(self):
return min(self.lower, self.upper)


def setLowerValue(self, lower):
self.setSpan(lower, self.upper)


@Property(int)
def upperValue(self):
return max(self.lower, self.upper)


def setUpperValue(self, upper):
self.setSpan(self.lower, upper)


@Property(object)
def handleMovementMode(self):
return self.movement


def setHandleMovementMode(self, mode):
self.movement = mode


def setSpan(self, lower, upper):
low = clamp(min(lower, upper), self.minimum(), self.maximum())
Expand All @@ -80,50 +117,63 @@ def setSpan(self, lower, upper):
self.upperPos = upp
changed = True
if changed:
self.emit(SIGNAL("spanChanged(int, int)"), self.lower, self.upper)
self.spanChanged.emit(self.lower, self.upper)
self.update()


@Property(int)
def lowerPosition(self):
return self.lowerPos


def setLowerPosition(self, lower):
if self.lowerPos != lower:
self.lowerPos = lower
if not self.hasTracking():
self.update()
if self.isSliderDown():
self.emit(SIGNAL("lowerPositionChanged(int)"), lower)
self.lowerPositionChanged.emit(lower)
if self.hasTracking() and not self.blockTracking:
main = (self.mainControl == QxtSpanSlider.LowerHandle)
self.triggerAction(QxtSpanSlider.SliderMove, main)


@Property(int)
def upperPosition(self):
return self.upperPos


def setUpperPosition(self, upper):
if self.upperPos != upper:
self.upperPos = upper
if not self.hasTracking():
self.update()
if self.isSliderDown():
self.emit(SIGNAL("upperPositionChanged(int)"), upper)
self.upperPositionChanged.emit(upper)
if self.hasTracking() and not self.blockTracking:
main = (self.mainControl == QxtSpanSlider.UpperHandle)
self.triggerAction(QxtSpanSlider.SliderMove, main)



@Property(object)
def gradientLeftColor(self):
return self.gradientLeft



def setGradientLeftColor(self, color):
self.gradientLeft = color
self.update()



@Property(object)
def gradientRightColor(self):
return self.gradientRight



def setGradientRightColor(self, color):
self.gradientRight = color
self.update()


def movePressedHandle(self):
if self.lastPressed == QxtSpanSlider.LowerHandle:
Expand All @@ -134,12 +184,14 @@ def movePressedHandle(self):
if self.upperPos != self.upper:
main = (self.mainControl == QxtSpanSlider.UpperHandle)
self.triggerAction(QAbstractSlider.SliderMove, main)


def pick(self, p):
if self.orientation() == QtCore.Qt.Horizontal:
if self.orientation() == Qt.Horizontal:
return p.x()
else:
return p.y()


def triggerAction(self, action, main):
value = 0
Expand Down Expand Up @@ -192,7 +244,7 @@ def triggerAction(self, action, main):
self.swapControls()
self.setUpperPosition(value)
else:
self.setLowerPosition(value)
self.eetLowerPosition(value)
elif not no:
if self.movement == QxtSpanSlider.NoCrossing:
value = max(value, self.lower)
Expand All @@ -208,6 +260,7 @@ def triggerAction(self, action, main):
self.blockTracking = False
self.setLowerValue(self.lowerPos)
self.setUpperValue(self.upperPos)


def swapControls(self):
self.lower, self.upper = self.upper, self.lower
Expand All @@ -222,10 +275,12 @@ def swapControls(self):
self.mainControl = QxtSpanSlider.UpperHandle
else:
self.mainControl = QxtSpanSlider.LowerHandle


def updateRange(self, min, max):
# setSpan() takes care of keeping span in range
self.setSpan(self.lower, self.upper)


def paintEvent(self, event):
painter = QStylePainter(self)
Expand Down Expand Up @@ -255,7 +310,7 @@ def paintEvent(self, event):
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:
if self.orientation() == Qt.Horizontal:
spanRect = QRect(QPoint(minv, c.y() - 2), QPoint(maxv, c.y() + 1))
self.drawSpan(painter, spanRect)

Expand All @@ -266,43 +321,46 @@ def paintEvent(self, event):
else:
self.drawHandle(painter, QxtSpanSlider.LowerHandle)
self.drawHandle(painter, QxtSpanSlider.UpperHandle)


def setupPainter(self, painter, orientation, x1, y1, x2, y2):
highlight = self.palette().color(QPalette.Highlight)
gradient = QLinearGradient(x1, y1, x2, y2)
gradient.setColorAt(0, highlight.dark(120))
gradient.setColorAt(1, highlight.light(108))
gradient.setColorAt(0, highlight.darker(120))
gradient.setColorAt(1, highlight.lighter(108))
painter.setBrush(gradient)

if orientation == QtCore.Qt.Horizontal:
painter.setPen(QPen(highlight.dark(130), 0))
if orientation == Qt.Horizontal:
painter.setPen(QPen(highlight.darker(130), 0))
else:
painter.setPen(QPen(highlight.dark(150), 0))
painter.setPen(QPen(highlight.darker(150), 0))


def drawSpan(self, painter, rect):
opt = QStyleOptionSlider()
QSlider.initStyleOption(self, opt)

# area
groove = self.style().subControlRect(QStyle.CC_Slider, opt, QStyle.SC_SliderGroove, self)
if opt.orientation == QtCore.Qt.Horizontal:
if opt.orientation == Qt.Horizontal:
groove.adjust(0, 0, -1, 0);
else:
groove.adjust(0, 0, 0, -1);

# pen & brush
painter.setPen(QPen(self.gradientLeftColor, 0))
if opt.orientation == QtCore.Qt.Horizontal:
if opt.orientation == Qt.Horizontal:
self.setupPainter(painter, opt.orientation, groove.center().x(), groove.top(), groove.center().x(), groove.bottom())
else:
self.setupPainter(painter, opt.orientation, groove.left(), groove.center().y(), groove.right(), groove.center().y())

# draw groove
intersected = QtCore.QRectF(rect.intersected(groove))
intersected = QRectF(rect.intersected(groove))
gradient = QLinearGradient(intersected.topLeft(), intersected.topRight())
gradient.setColorAt(0, self.gradientLeft)
gradient.setColorAt(1, self.gradientRight)
painter.fillRect(intersected, gradient)


def drawHandle(self, painter, handle):
opt = QStyleOptionSlider()
Expand All @@ -316,6 +374,7 @@ def drawHandle(self, painter, handle):
opt.activeSubControls = pressed
opt.state |= QStyle.State_Sunken
painter.drawComplexControl(QStyle.CC_Slider, opt)


def _initStyleOption(self, option, handle):
self.initStyleOption(option)
Expand All @@ -327,6 +386,7 @@ def _initStyleOption(self, option, handle):
option.sliderValue = self.upper
if handle == QxtSpanSlider.LowerHandle:
option.sliderPosition = self.lower


def handleMousePress(self, pos, control, value, handle):
opt = QStyleOptionSlider()
Expand All @@ -339,10 +399,11 @@ def handleMousePress(self, pos, control, value, handle):
self.offset = self.pick(pos - sr.topLeft())
self.lastPressed = handle
self.setSliderDown(True)
self.emit(SIGNAL("sliderPressed(PyQt_PyObject)"), handle)
self.sliderPressed.emit(handle)
if control != oldControl:
self.update(sr)
return control


def mousePressEvent(self, event):
if self.minimum() == self.maximum() or event.buttons() ^ event.button():
Expand All @@ -355,6 +416,7 @@ def mousePressEvent(self, event):

self.firstMovement = True
event.accept()


def mouseMoveEvent(self, event):
if self.lowerPressed != QStyle.SC_SliderHandle and self.upperPressed != QStyle.SC_SliderHandle:
Expand Down Expand Up @@ -402,13 +464,15 @@ def mouseMoveEvent(self, event):
else:
self.setUpperPosition(newPosition)
event.accept()


def mouseReleaseEvent(self, event):
QSlider.mouseReleaseEvent(self, event)
self.setSliderDown(False)
self.lowerPressed = QStyle.SC_None
self.upperPressed = QStyle.SC_None
self.update()


def pixelPosToRangeValue(self, pos):
opt = QStyleOptionSlider()
Expand All @@ -419,7 +483,7 @@ def pixelPosToRangeValue(self, pos):
sliderLength = 0
gr = self.style().subControlRect(QStyle.CC_Slider, opt, QStyle.SC_SliderGroove, self)
sr = self.style().subControlRect(QStyle.CC_Slider, opt, QStyle.SC_SliderHandle, self)
if self.orientation() == QtCore.Qt.Horizontal:
if self.orientation() == Qt.Horizontal:
sliderLength = sr.width()
sliderMin = gr.x()
sliderMax = gr.right() - sliderLength + 1
Expand All @@ -429,11 +493,17 @@ def pixelPosToRangeValue(self, pos):
sliderMax = gr.bottom() - sliderLength + 1

return QStyle.sliderValueFromPosition(self.minimum(), self.maximum(), pos - sliderMin, sliderMax - sliderMin, opt.upsideDown)


if __name__ == "__main__":
import sys

lowerValue = pyqtProperty("int", lowerValue, setLowerValue)
upperValue = pyqtProperty("int", upperValue, setUpperValue)
upperPosition = pyqtProperty("int", upperPosition, setUpperPosition)
lowerPosition = pyqtProperty("int", lowerPosition, setLowerPosition)
handleMovementMode = pyqtProperty("PyQt_PyObject", handleMovementMode, setHandleMovementMode)
gradientLeftColor = pyqtProperty("PyQt_PyObject", gradientLeftColor, setGradientLeftColor)
gradientRightColor = pyqtProperty("PyQt_PyObject", gradientRightColor, setGradientRightColor)
app = QApplication(sys.argv)
slider = QxtSpanSlider()
slider.setSpan(30, 70)
slider.setRange(0, 100)
color = QColor(Qt.blue).lighter(150)
slider.setGradientLeftColor(color)
slider.setGradientRightColor(color)
slider.show()
sys.exit(app.exec_())