1 #ifndef GAMEVIEW_H

     2 #define GAMEVIEW_H

     3 

     4 #include <QQuickItem>

     5 

     6 #include <QPointer>

     7 #include <QScopedPointer>

     8 #include <QtGui/QOpenGLFunctions>

     9 #include <QtGui/QOpenGLShaderProgram>

    10 

    11 #include "engine_instance.h"

    12 

    13 class GameViewRenderer : public QObject, protected QOpenGLFunctions {

    14   Q_OBJECT

    15  public:

    16   explicit GameViewRenderer();

    17   ~GameViewRenderer() override;

    18 

    19   void tick(quint32 delta);

    20   void setEngineInstance(EngineInstance* engineInstance);

    21 

    22  public slots:

    23   void paint();

    24   void onViewportSizeChanged(QQuickWindow* window);

    25 

    26  private:

    27   quint32 m_delta;

    28   QPointer<EngineInstance> m_engineInstance;

    29 };

    30 

    31 class GameView : public QQuickItem {

    32   Q_OBJECT

    33 

    34   Q_PROPERTY(EngineInstance* engineInstance READ engineInstance WRITE

    35                  setEngineInstance NOTIFY engineInstanceChanged)

    36 

    37  public:

    38   explicit GameView(QQuickItem* parent = nullptr);

    39 

    40   Q_INVOKABLE void tick(quint32 delta);

    41 

    42   EngineInstance* engineInstance() const;

    43 

    44  signals:

    45   void engineInstanceChanged(EngineInstance* engineInstance);

    46 

    47  public slots:

    48   void sync();

    49   void cleanup();

    50   void setEngineInstance(EngineInstance* engineInstance);

    51 

    52  private slots:

    53   void handleWindowChanged(QQuickWindow* win);

    54 

    55  private:

    56   quint32 m_delta;

    57   QScopedPointer<GameViewRenderer> m_renderer;

    58   bool m_windowChanged;

    59   QPointer<EngineInstance> m_engineInstance;

    60   QSize m_viewportSize;

    61   QPoint m_centerPoint;

    62 };

    63 

    64 #endif  // GAMEVIEW_H