Hello all, <br><br>I get some strange TypeErrors when I use the QGraphicsItemAnimation. <br><br>An example can be boiled down to the example below taken from the Qt documentation : <br><a href="http://doc.trolltech.com/4.5/qgraphicsitemanimation.html">http://doc.trolltech.com/4.5/qgraphicsitemanimation.html</a><br>
<br>What I get is this error, when the application is running. <br><br>"TypeError: native Qt signal is not callable"<br><br>I have installed the snapshot : PyQt-x11-gpl-4.5-snapshot-20090403.tar.gz under python2.6 ( verified the error under python2.5 too )<br>
<br>I can hardly see that I do something wrong.. or is it my installation that has failed?? <br><br><br>best Regards<br><br>BBZ<br><br><br># --------------------------- 8< --------------------------<br><br>import sys <br>
<br>from PyQt4.QtGui import QApplication , QGraphicsEllipseItem , QGraphicsItemAnimation<br>from PyQt4.QtGui import QGraphicsScene , QGraphicsView<br>from PyQt4.QtCore import SIGNAL , QPointF , QTimeLine<br><br>app = QApplication( sys.argv )<br>
<br># create a graphicsview with a moving ball...<br>ball = QGraphicsEllipseItem(0, 0, 20, 20)<br> <br>timer = QTimeLine(5000)<br>timer.setFrameRange(0, 100)<br><br>animation = QGraphicsItemAnimation()<br>animation.setItem(ball)<br>
animation.setTimeLine(timer)<br><br>for i in xrange( 200 ) : <br> animation.setPosAt(i / 200.0, QPointF(i, i))<br><br>scene = QGraphicsScene()<br>scene.setSceneRect(0, 0, 250, 250)<br>scene.addItem(ball)<br><br>view = QGraphicsView(scene)<br>
view.show()<br><br>timer.start()<br><br>app.exec_()<br><br><br># --------------------------- 8< --------------------------<br>
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