/usr/lib/python2.7/dist-packages/pyqtgraph/graphicsItems/GraphicsObject.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 | from ..Qt import QtGui, QtCore, USE_PYSIDE
if not USE_PYSIDE:
import sip
from .GraphicsItem import GraphicsItem
__all__ = ['GraphicsObject']
class GraphicsObject(GraphicsItem, QtGui.QGraphicsObject):
"""
**Bases:** :class:`GraphicsItem <pyqtgraph.graphicsItems.GraphicsItem>`, :class:`QtGui.QGraphicsObject`
Extension of QGraphicsObject with some useful methods (provided by :class:`GraphicsItem <pyqtgraph.graphicsItems.GraphicsItem>`)
"""
_qtBaseClass = QtGui.QGraphicsObject
def __init__(self, *args):
self.__inform_view_on_changes = True
QtGui.QGraphicsObject.__init__(self, *args)
self.setFlag(self.ItemSendsGeometryChanges)
GraphicsItem.__init__(self)
def itemChange(self, change, value):
ret = QtGui.QGraphicsObject.itemChange(self, change, value)
if change in [self.ItemParentHasChanged, self.ItemSceneHasChanged]:
self.parentChanged()
try:
inform_view_on_change = self.__inform_view_on_changes
except AttributeError:
# It's possible that the attribute was already collected when the itemChange happened
# (if it was triggered during the gc of the object).
pass
else:
if inform_view_on_change and change in [self.ItemPositionHasChanged, self.ItemTransformHasChanged]:
self.informViewBoundsChanged()
## workaround for pyqt bug:
## http://www.riverbankcomputing.com/pipermail/pyqt/2012-August/031818.html
if not USE_PYSIDE and change == self.ItemParentChange and isinstance(ret, QtGui.QGraphicsItem):
ret = sip.cast(ret, QtGui.QGraphicsItem)
return ret
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