CODEWITHSUNDEEP
c++qt
prabhakaran
prabhakaran

Reputation: 5274

Qt - QGraphicsView without ScrollBar

I am trying to show a picture in it's full view using QGraphicsScene. But when ever I put the QgraphicsScene inside the QGraphicsView, I am getting a scroll bar. I tried so many ways But all are went to veins. So can anybody tell me how to obtain the full view without the scrollbar.

Upvotes: 8

Views: 15068

Answers (2)

AndrewS
AndrewS

Reputation: 8472

You might be getting scrollbars because the scene is larger than the usable area within the graphics view. By default, a QGraphicsView comes with a 1-pixel margin. To fix this, you can try:

QRect rcontent = graphicsView.contentsRect();
graphicsView.setSceneRect(0, 0, rcontent.width(), rcontent.height());

I had been getting scrollbars because I was manually setting the scene rect to the size of the graphics item I was adding -- which was as large as the QGraphicsView widget. I wasn't taking into account the margin.

Upvotes: 20

Ken Bloom
Ken Bloom

Reputation: 58810

QGraphicsView v;
v.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
v.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

To adjust the scrolling programmatically once these have been hidden, use one of the overloads of v.ensureVisible().

Upvotes: 17

Related Questions