Qt-interest Archive, April 2007
Re: Problems with translating QGraphicsView
Message 1 in thread
On Saturday 31 March 2007 21:54, Markus wrote:
> I am having problems using translate(dx, dy) on a QGraphicsView. While
> scale and rotate work fine, translate seems not to work.
Just to clarify, this is _not_ an April Fools' joke.
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Message 2 in thread
On Saturday 31 March 2007 21:54, Markus wrote:
> I am having problems using translate(dx, dy) on a QGraphicsView. While
> scale and rotate work fine, translate seems not to work.
Maybe a simple test application helps illustrate the problem:
--main.cpp--
#include <QtGui>
#include "GView.h"
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QGraphicsScene scene;
scene.setSceneRect(-500, -500, 1000, 1000);
QGraphicsRectItem *rect = new QGraphicsRectItem;
rect->setRect(0, 0, 100, 100);
scene.addItem(rect);
GView view;
view.setScene(&scene);
view.resize(400, 300);
view.show();
return app.exec();
}
----
--gview.h--
class GView : public QGraphicsView
{
public:
GView(QWidget *parent = 0) {}
virtual ~GView() {}
void mouseReleaseEvent(QMouseEvent *event) { translate(100, 0); }
};
----
When clicking into the window of the above application, there is no visible
reaction.
This really looks like a bug to me. Is anyone from Trolltech reading this
list?
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