svgalibscreen.h Example File
qws/svgalib/svgalibscreen.h

 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain additional
 ** rights.  These rights are described in the Nokia Qt LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you have questions regarding the use of this file, please contact
 ** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #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 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:
     void initColorMap();
     void blit16To8(const QImage &image,
                    const QPoint &topLeft, const QRegion &region);
     void blit32To8(const QImage &image,
                    const QPoint &topLeft, const QRegion &region);

     GraphicsContext *context;
 };

 #endif // SVGALIBSCREEN_H