Михаиллл
МихаилллJune 7, 2019, 2:56 a.m.

Как узнать координаты видимой части картинки вQLabel

QImage, QLabel

Добрый день.
Я воспользовался прримером Image Viewer .
Я так отображаю картинку:

    QImage mapImage(":/Images/Images/mapMain.png");
    ImageViewer* myImageViewer  = new ImageViewer();
    myImageViewer->setImage(mapImage);
    ui->verticalLayout->addWidget(myImageViewer);

Как можно узнать координаты видимой части картинки в QLabel?

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2
Михаиллл
  • June 7, 2019, 5:50 a.m.

Почти решил. Узнаю размер скро ареи, но не могу узнать размер ползунка. pageStep() не возвращает размер ползунка

    qDebug()<<scrollArea->horizontalScrollBar()->value()
           <<scrollArea->horizontalScrollBar()->maximum()
          <<scrollArea->horizontalScrollBar()->minimum()
         <<scrollArea->horizontalScrollBar()->pageStep();
    Михаиллл
    • June 7, 2019, 12:48 p.m.
    • The answer was marked as a solution.

    Нужно узнать размер скрола и его положение и так определиь.
    Размер скрола = (размер виджета/размер кортинки)/масштаб

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