Qt 5.6 | Qt Concurrent | Image Scaling Example | imagescaling.h Example File

Qt 5.6.2 Reference Documentation

# imagescaling.h Example File

imagescaling/imagescaling.h

      /****************************************************************************
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      ** This file is part of the examples of the Qt Toolkit.
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      #ifndef IMAGESCALING_H
      #define IMAGESCALING_H

      #include <QtWidgets>
      #include <QtConcurrent>

      class Images : public QWidget
      {
      Q_OBJECT
      public:
          Images(QWidget *parent = 0);
          ~Images();
      public Q_SLOTS:
          void open();
          void showImage(int num);
          void finished();
      private:
          QPushButton *openButton;
          QPushButton *cancelButton;
          QPushButton *pauseButton;
          QVBoxLayout *mainLayout;
          QList<QLabel *> labels;
          QGridLayout *imagesLayout;
          QFutureWatcher<QImage> *imageScaling;
      };

      #endif // IMAGESCALING_H