60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
from ..Qt import QtGui, QtCore
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from ..GraphicsScene import GraphicsScene
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from .GraphicsItem import GraphicsItem
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__all__ = ['GraphicsWidget']
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class GraphicsWidget(GraphicsItem, QtGui.QGraphicsWidget):
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_qtBaseClass = QtGui.QGraphicsWidget
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def __init__(self, *args, **kargs):
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"""
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**Bases:** :class:`GraphicsItem <pyqtgraph.GraphicsItem>`, :class:`QtGui.QGraphicsWidget`
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Extends QGraphicsWidget with several helpful methods and workarounds for PyQt bugs.
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Most of the extra functionality is inherited from :class:`GraphicsItem <pyqtgraph.GraphicsItem>`.
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"""
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QtGui.QGraphicsWidget.__init__(self, *args, **kargs)
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GraphicsItem.__init__(self)
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## done by GraphicsItem init
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#GraphicsScene.registerObject(self) ## workaround for pyqt bug in graphicsscene.items()
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# Removed due to https://bugreports.qt-project.org/browse/PYSIDE-86
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#def itemChange(self, change, value):
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## BEWARE: Calling QGraphicsWidget.itemChange can lead to crashing!
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##ret = QtGui.QGraphicsWidget.itemChange(self, change, value) ## segv occurs here
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## The default behavior is just to return the value argument, so we'll do that
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## without calling the original method.
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#ret = value
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#if change in [self.ItemParentHasChanged, self.ItemSceneHasChanged]:
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#self._updateView()
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#return ret
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def setFixedHeight(self, h):
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self.setMaximumHeight(h)
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self.setMinimumHeight(h)
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def setFixedWidth(self, h):
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self.setMaximumWidth(h)
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self.setMinimumWidth(h)
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def height(self):
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return self.geometry().height()
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def width(self):
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return self.geometry().width()
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def boundingRect(self):
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br = self.mapRectFromParent(self.geometry()).normalized()
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#print "bounds:", br
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return br
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def shape(self): ## No idea why this is necessary, but rotated items do not receive clicks otherwise.
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p = QtGui.QPainterPath()
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p.addRect(self.boundingRect())
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#print "shape:", p.boundingRect()
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return p
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