In a game the user should be able to rotate a GraphicsItem by clicking on it
with the right mouse button. According the game situation he must be able to
execute another rotation by the same angle (90°). But this time the item is
not rotated! To explain the situation I add the essential part of my code:
class Stone(QGraphicsPolygonItem):
def __init__(self,polygon,brush,x,y,scene):
QGraphicsPolygonItem.__init__(self,polygon,None,scene)
self.setPos(x,y)
self.setBrush(brush)
def mousePressEvent(self,ev):
if ev.button()==Qt.RightButton:
print self.sceneBoundingRect()
self.setRotation(90)
print self.sceneBoundingRect()
Two consecutive clicks produce the following output:
PyQt4.QtCore.QRectF(5.0, 41.0, 90.0, 18.0)
PyQt4.QtCore.QRectF(41.0, 5.0, 18.0, 90.0)
PyQt4.QtCore.QRectF(41.0, 5.0, 18.0, 90.0)
PyQt4.QtCore.QRectF(41.0, 5.0, 18.0, 90.0)
This demonstrates that the second click fails and this can also be watched
on the screen.
What am I doing wrong? I ask for a solution because consecutive rotations
are essential for the game.
Cheers Konrad
PS: For demonstration in this example the polygon is a rectangle, in other
cases the polygons haves more edges,
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