QImage::load jpg not plotting to view / scene?

Question

Image is not being plotted to the screen?

QGraphicsScene *scene = new QGraphicsScene();
scene->setSceneRect(0, 0, 996, 996);
scene->setItemIndexMethod(QGraphicsScene::NoIndex);

QGraphicsView *view = new QGraphicsView();
view->setScene(scene);
view->setRenderHint(QPainter::Antialiasing);
view->setBackgroundBrush(Qt::white);
view->setCacheMode(QGraphicsView::CacheBackground);
view->setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
view->setDragMode(QGraphicsView::ScrollHandDrag);
view->setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice"));
view->resize(1000, 1000);
view->show();

QImage img(996, 996, QImage::Format_ARGB32);
img.load("/home/blabla/scene8.jpg", 0);
QPainter painter(&img);
view->render(&painter, view->sceneRect());

Where's the rest of the code? After setting up the scene and view, you create a QImage and render a jpg to it. You need to show the code that's adding an object to the scene that contains the QImage, or is this all you have done? — TheDarkKnight, Aug 09 '13 at 08:00

score 0 · Accepted Answer · edited May 23 '17 at 10:27

0

using for a basis: Display QImage with QtGui

QGraphicsScene *scene = new QGraphicsScene();

QPixmap image;
image.load("/home/blabla/scene8.jpg", 0);
scene->addPixmap(image);
scene->setSceneRect(image.rect());

QGraphicsView *view = new QGraphicsView();
view->setScene(scene);
view->setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "My Plot"));
view->resize(1000, 1000);
view->show();

edited May 23 '17 at 10:27

Community

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answered Aug 08 '13 at 18:14

jdl

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QImage::load jpg not plotting to view / scene?

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