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# view.h Example File
demos/chip/view.h

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     #ifndef VIEW_H
     #define VIEW_H

     #include <QFrame>

     class E_CLASS(QGraphicsView;
     class E_CLASS(QLabel;
     class E_CLASS(QSlider;
     class E_CLASS(QToolButton;

     class View : public QFrame
     {
         Q_OBJECT
     public:
         View(const QString &name, QWidget *parent = 0);

         QGraphicsView *view() const;

     private slots:
         void resetView();
         void setResetButtonEnabled();
         void setupMatrix();
         void toggleOpenGL();
         void toggleAntialiasing();
         void print();

         void zoomIn();
         void zoomOut();
         void rotateLeft();
         void rotateRight();

     private:
         QGraphicsView *graphicsView;
         QLabel *label;
         QToolButton *openGlButton;
         QToolButton *antialiasButton;
         QToolButton *printButton;
         QToolButton *resetButton;
         QSlider *zoomSlider;
         QSlider *rotateSlider;
     };

     #endif