svgalibscreen.h

QT 开发环境里面一个很重要的文件

/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
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** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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#ifndef SVGALIBSCREEN_H
#define SVGALIBSCREEN_H

#include <QScreen>

#include <vga.h>
#include <vgagl.h>

class SvgalibScreen : public QScreen
{
public:
    SvgalibScreen(int displayId) : QScreen(displayId) {}
    ~SvgalibScreen() {}

    bool connect(const QString &displaySpec);
    bool initDevice();
    void shutdownDevice();
    void disconnect();

    void setMode(int, int, int) {}
    void blank(bool) {}

    void exposeRegion(QRegion r, int changing);
    void blit(const QImage &img, const QPoint &topLeft, const QRegion &region);
    void solidFill(const QColor &color, const QRegion &region);

    QWSWindowSurface* createSurface(QWidget *widget) const;
    QWSWindowSurface* createSurface(const QString &key) const;

private:
    GraphicsContext *context;
};

#endif // SVGALIBSCREEN_H