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#ifndef QQNXWINDOW_H
#define QQNXWINDOW_H

#include <QtGui/QPlatformWindow>

#include "qqnxbuffer.h"

#include <QtGui/QImage>

#include <EGL/egl.h>

#include <screen/screen.h>

QT_BEGIN_NAMESPACE

// all surfaces double buffered
#define MAX_BUFFER_COUNT    2

class QQnxGLContext;
class QQnxScreen;

class QSurfaceFormat;

class QQnxWindow : public QPlatformWindow
{
friend class QQnxScreen;
public:
    QQnxWindow(QWindow *window, screen_context_t context);
    virtual ~QQnxWindow();

    void setGeometry(const QRect &rect);
    void setVisible(bool visible);
    void setOpacity(qreal level);

    WId winId() const { return (WId)m_window; }
    screen_window_t nativeHandle() const { return m_window; }

    void setBufferSize(const QSize &size);
    QSize bufferSize() const { return m_bufferSize; }
    bool hasBuffers() const { return !m_bufferSize.isEmpty(); }

    QQnxBuffer &renderBuffer();
    void scroll(const QRegion &region, int dx, int dy, bool flush=false);
    void post(const QRegion &dirty);

    void setScreen(QQnxScreen *platformScreen);

    void setParent(const QPlatformWindow *window);
    void raise();
    void lower();
    void requestActivateWindow();

    void gainedFocus();

    QQnxScreen *screen() const { return m_screen; }
    const QList<QQnxWindow*>& children() const { return m_childWindows; }

    void setPlatformOpenGLContext(QQnxGLContext *platformOpenGLContext);
    QQnxGLContext *platformOpenGLContext() const { return m_platformOpenGLContext; }

private:
    void removeFromParent();
    void offset(const QPoint &offset);
    void updateVisibility(bool parentVisible);
    void updateZorder(int &topZorder);

    void fetchBuffers();

    void copyBack(const QRegion &region, int dx, int dy, bool flush=false);

    static int platformWindowFormatToNativeFormat(const QSurfaceFormat &format);

    screen_context_t m_screenContext;
    screen_window_t m_window;
    QSize m_bufferSize;
    QQnxBuffer m_buffers[MAX_BUFFER_COUNT];
    int m_currentBufferIndex;
    int m_previousBufferIndex;
    QRegion m_previousDirty;
    QRegion m_scrolled;

    QQnxGLContext *m_platformOpenGLContext;
    QQnxScreen *m_screen;
    QList<QQnxWindow*> m_childWindows;
    QQnxWindow *m_parentWindow;
    bool m_visible;
};

QT_END_NAMESPACE

#endif // QQNXWINDOW_H