Source code for pyqtgraph.parametertree.parameterTypes.colormap
from ...colormap import ColorMap
from ...Qt import QtCore
from ...widgets.GradientWidget import GradientWidget
from .basetypes import SimpleParameter, WidgetParameterItem
[docs]
class ColorMapParameterItem(WidgetParameterItem):
"""Registered parameter type which displays a :class:`GradientWidget <pyqtgraph.GradientWidget>`"""
def makeWidget(self):
w = GradientWidget(orientation='bottom')
w.sizeHint = lambda: QtCore.QSize(300, 35)
w.sigChanged = w.sigGradientChangeFinished
w.sigChanging = w.sigGradientChanged
w.value = w.colorMap
w.setValue = w.setColorMap
self.hideWidget = False
self.asSubItem = True
return w
[docs]
class ColorMapParameter(SimpleParameter):
itemClass = ColorMapParameterItem
def _interpretValue(self, v):
if v is not None and not isinstance(v, ColorMap):
raise TypeError("Cannot set colormap parameter from object %r" % v)
return v