[Solved]et the size of the QGraphicsView

  • "The red rectangle":http://postimage.org/image/gqrf29mrh/

    It is a QGraphicsView under a QMainWindow

    graph_scene_ = new QGraphicsScene(this);
    graph_scene_->addItem(graph_pixmap_ = new QGraphicsPixmapItem);
    graph_view_ = new QGraphicsView(graph_scene_, this);



    I only need the size of the area surrounded by the red rectangle but not the whole
    area which could reach by the scrollBar.

  • I just find the answer, size() and viewport()->size()
    whatevever, I need to find out the different of these

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