/usr/lib/python2.7/dist-packages/pyqtgraph/widgets/ColorButton.py is in python-pyqtgraph 0.9.10-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | # -*- coding: utf-8 -*-
from ..Qt import QtGui, QtCore
from .. import functions as functions
__all__ = ['ColorButton']
class ColorButton(QtGui.QPushButton):
"""
**Bases:** QtGui.QPushButton
Button displaying a color and allowing the user to select a new color.
====================== ============================================================
**Signals:**
sigColorChanging(self) emitted whenever a new color is picked in the color dialog
sigColorChanged(self) emitted when the selected color is accepted (user clicks OK)
====================== ============================================================
"""
sigColorChanging = QtCore.Signal(object) ## emitted whenever a new color is picked in the color dialog
sigColorChanged = QtCore.Signal(object) ## emitted when the selected color is accepted (user clicks OK)
def __init__(self, parent=None, color=(128,128,128)):
QtGui.QPushButton.__init__(self, parent)
self.setColor(color)
self.colorDialog = QtGui.QColorDialog()
self.colorDialog.setOption(QtGui.QColorDialog.ShowAlphaChannel, True)
self.colorDialog.setOption(QtGui.QColorDialog.DontUseNativeDialog, True)
self.colorDialog.currentColorChanged.connect(self.dialogColorChanged)
self.colorDialog.rejected.connect(self.colorRejected)
self.colorDialog.colorSelected.connect(self.colorSelected)
#QtCore.QObject.connect(self.colorDialog, QtCore.SIGNAL('currentColorChanged(const QColor&)'), self.currentColorChanged)
#QtCore.QObject.connect(self.colorDialog, QtCore.SIGNAL('rejected()'), self.currentColorRejected)
self.clicked.connect(self.selectColor)
self.setMinimumHeight(15)
self.setMinimumWidth(15)
def paintEvent(self, ev):
QtGui.QPushButton.paintEvent(self, ev)
p = QtGui.QPainter(self)
rect = self.rect().adjusted(6, 6, -6, -6)
## draw white base, then texture for indicating transparency, then actual color
p.setBrush(functions.mkBrush('w'))
p.drawRect(rect)
p.setBrush(QtGui.QBrush(QtCore.Qt.DiagCrossPattern))
p.drawRect(rect)
p.setBrush(functions.mkBrush(self._color))
p.drawRect(rect)
p.end()
def setColor(self, color, finished=True):
"""Sets the button's color and emits both sigColorChanged and sigColorChanging."""
self._color = functions.mkColor(color)
if finished:
self.sigColorChanged.emit(self)
else:
self.sigColorChanging.emit(self)
self.update()
def selectColor(self):
self.origColor = self.color()
self.colorDialog.setCurrentColor(self.color())
self.colorDialog.open()
def dialogColorChanged(self, color):
if color.isValid():
self.setColor(color, finished=False)
def colorRejected(self):
self.setColor(self.origColor, finished=False)
def colorSelected(self, color):
self.setColor(self._color, finished=True)
def saveState(self):
return functions.colorTuple(self._color)
def restoreState(self, state):
self.setColor(state)
def color(self, mode='qcolor'):
color = functions.mkColor(self._color)
if mode == 'qcolor':
return color
elif mode == 'byte':
return (color.red(), color.green(), color.blue(), color.alpha())
elif mode == 'float':
return (color.red()/255., color.green()/255., color.blue()/255., color.alpha()/255.)
def widgetGroupInterface(self):
return (self.sigColorChanged, ColorButton.saveState, ColorButton.restoreState)
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