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qcontext2dcanvas.h Example File

script/context2d/qcontext2dcanvas.h
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 #ifndef QCONTEXT2DCANVAS_H
 #define QCONTEXT2DCANVAS_H

 #include <qscriptengine.h>
 #include <qscriptcontext.h>
 #include <qscriptvalue.h>

 #include <QWidget>

 class QPaintEvent;
 class QResizeEvent;
 class QMouseEvent;
 class QKeyEvent;

 class Environment;
 class Context2D;

 class QContext2DCanvas : public QWidget
 {
     Q_OBJECT
 public:
     QContext2DCanvas(Context2D *context, Environment *env, QWidget *parent = 0);
     ~QContext2DCanvas();

     Context2D *context() const;
     void reset();

 public slots:
     QScriptValue getContext(const QString &str);
     void resize(int width, int height);

     // EventTarget
     void addEventListener(const QString &type, const QScriptValue &listener,
                           bool useCapture);

 protected:
     virtual void paintEvent(QPaintEvent *e);
     virtual void mouseMoveEvent(QMouseEvent *e);
     virtual void mousePressEvent(QMouseEvent *e);
     virtual void mouseReleaseEvent(QMouseEvent *e);
     virtual void keyPressEvent(QKeyEvent *e);
     virtual void keyReleaseEvent(QKeyEvent *e);
     virtual void resizeEvent(QResizeEvent *e);

 private slots:
     void contentsChanged(const QImage &image);

 private:
     Context2D *m_context;
     Environment *m_env;
     QImage m_image;
 };

 #endif
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