WebNov 5, 2016 · 3 Answers Sorted by: 1 You want sceneRect not just width and height. For the scaling on resize you want to connect a slot to sceneRectChanged so you can resize the image whenever the scene changes size. Or you can derive a QGraphicsView with an overridden updateSceneRect that changes the image size, or better yet, just override … WebJul 22, 2024 · here is my simple code to display the image in QGraphicsView in pyqt python 3.7. I want an image pixel when the mouse is pressed on a scene or window of QGraphicsView or QGraphicsScene. Mouse Press Function Mouse Press Event Handler def mousePressEvent (self): p = QtGui.QCursor.pos () print ("pressed here: ", p) Mouse …
c++ - 如何在QGraphicsView中加載圖像像素位置 - 奇怪 …
WebWristWidget::WristWidget (QWidget *parent) : QGraphicsView (parent), timerId (0) { QGraphicsScene *scene = new QGraphicsScene (this); scene->setItemIndexMethod (QGraphicsScene::NoIndex); scene->setSceneRect (0, 0, 50, 50); setScene (scene); setCacheMode (CacheBackground); setViewportUpdateMode … WebPython QGraphicsView.setScene - 16 examples found. These are the top rated real world Python examples of PyQt4QtGui.QGraphicsView.setScene extracted from open source … how did bruno alive jojo
C++ (Cpp) QGraphicsScene示例
http://www.codebaoku.com/tech/tech-yisu-782880.html WebMar 6, 2013 · ui->graphicsView->scene()->addItem(new QGraphicsPixmapItem(QPixmap::fromImage(image))); Everything that inherits from QObject can own (and be owned by) other QObject classes. When a QObject is destroyed, it calls 'delete' on all its children. QObject classes want to 'own' their children. By 'own' I mean … WebMar 16, 2016 · auto graphicsView = new QGraphicsView (); auto scene = new QGraphicsScene (); graphicsView->setScene (scene); auto parent1 = new QGraphicsRectItem (0, 0, 100, 200); parent1->setBrush (QBrush (QColor (Qt::cyan))); scene->addItem (parent); auto subRect1 = new QGraphicsRectItem (10, 10, 50, 50, … how did bruno spend his early days at home