Am Mittwoch, 4. Februar 2015, 11:22:15 schrieben Sie: > not sure how the graphicsitem comes into all of this, but no you cant draw > on it. Well, we use QGraphicsScene/View with QGraphicsItems.
> you can draw on a QGraphicsWidget or you can derive from > QGraphicsItem and draw in its paint() method. The Curve-class is already derived from QGraphicsItem and I reimplement the paint()-function. As you suggested, I use the QPainter passed to this function to draw onto a QPixmap. Once I'm done with this I want to call painter->drawPixmap() to draw on the QGraphicsItem... Also, by making the painter to paint on the pixmap with painter.begin(&pixmap) I get the warning "QPainter is already active" - the painter is already initialized/prepared for the graphics item. Any other ideas? -- Alexander _______________________________________________ Interest mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/interest
