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 __init__(self, *args, **kargs):
"""
Create a new GradientEditorItem.
All arguments are passed to :func:`TickSliderItem.__init__ <pyqtgraph.TickSliderItem.__init__>`
=============== =================================================================================
**Arguments:**
orientation Set the orientation of the gradient. Options are: 'left', 'right'
'top', and 'bottom'.
allowAdd Default is True. Specifies whether ticks can be added to the item.
tickPen Default is white. Specifies the color of the outline of the ticks.
Can be any of the valid arguments for :func:`mkPen <pyqtgraph.mkPen>`
=============== =================================================================================
"""
self.currentTick = None
self.currentTickColor = None
self.rectSize = 15
self.gradRect = QtGui.QGraphicsRectItem(
QtCore.QRectF(0, self.rectSize, 100, self.rectSize))
self.backgroundRect = QtGui.QGraphicsRectItem(
QtCore.QRectF(0, -self.rectSize, 100, self.rectSize))
self.backgroundRect.setBrush(QtGui.QBrush(QtCore.Qt.DiagCrossPattern))
self.colorMode = 'rgb'
TickSliderItem.__init__(self, *args, **kargs)
self.colorDialog = QtGui.QColorDialog()
self.colorDialog.setOption(QtGui.QColorDialog.ShowAlphaChannel, True)
self.colorDialog.setOption(QtGui.QColorDialog.DontUseNativeDialog,
True)
self.colorDialog.currentColorChanged.connect(self.currentColorChanged)
self.colorDialog.rejected.connect(self.currentColorRejected)
self.colorDialog.accepted.connect(self.currentColorAccepted)
self.backgroundRect.setParentItem(self)
self.gradRect.setParentItem(self)
self.setMaxDim(self.rectSize + self.tickSize)
self.rgbAction = QtGui.QAction('RGB', self)
self.rgbAction.setCheckable(True)
self.rgbAction.triggered.connect(lambda: self.setColorMode('rgb'))
self.hsvAction = QtGui.QAction('HSV', self)
self.hsvAction.setCheckable(True)
self.hsvAction.triggered.connect(lambda: self.setColorMode('hsv'))
# Because v0.10.0 ColorMap does not support HSV mode
self.hsvAction.setEnabled(False)
self.menu = QtGui.QMenu()
## build context menu of gradients
l = self.length
self.length = 100
# global Gradients
if 'gradients' in kargs:
if kargs['gradients'] is not None:
self.gradients = kargs['gradients']
else:
self.gradients = customGradients
else:
self.gradients = customGradients
for g in self.gradients:
px = QtGui.QPixmap(100, 15)
p = QtGui.QPainter(px)
self.restoreState(self.gradients[g])
grad = self.getGradient()
brush = QtGui.QBrush(grad)
p.fillRect(QtCore.QRect(0, 0, 100, 15), brush)
p.end()
label = QtGui.QLabel()
label.setPixmap(px)
label.setContentsMargins(1, 1, 1, 1)
labelName = QtGui.QLabel(g)
hbox = QtGui.QHBoxLayout()
hbox.addWidget(labelName)
hbox.addWidget(label)
widget = QtGui.QWidget()
widget.setLayout(hbox)
act = QtGui.QWidgetAction(self)
act.setDefaultWidget(widget)
act.triggered.connect(self.contextMenuClicked)
act.name = g
self.menu.addAction(act)
self.length = l
self.menu.addSeparator()
self.menu.addAction(self.rgbAction)
self.menu.addAction(self.hsvAction)
for t in list(self.ticks.keys()):
self.removeTick(t)
self.addTick(0, QtGui.QColor(0, 0, 0), True)
self.addTick(1, QtGui.QColor(255, 0, 0), True)
self.setColorMode('rgb')
self.updateGradient()
