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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "dbscreen.h"
#include <QApplication>
//! [0]
bool DBScreen::initDevice()
{
if (!QLinuxFbScreen::initDevice())
return false;
QScreenCursor::initSoftwareCursor();
image = new QImage(deviceWidth(), deviceHeight(), pixelFormat());
painter = new QPainter(image);
return true;
}
//! [0]
//! [1]
void DBScreen::shutdownDevice()
{
QLinuxFbScreen::shutdownDevice();
delete painter;
delete image;
}
//! [1]
//! [2]
void DBScreen::solidFill(const QColor &color, const QRegion ®ion)
{
QVector<QRect> rects = region.rects();
for (int i = 0; i < rects.size(); i++)
painter->fillRect(rects.at(i), color);
}
//! [2]
//! [3]
void DBScreen::blit(const QImage &image, const QPoint &topLeft, const QRegion ®ion)
{
QVector<QRect> rects = region.rects();
for (int i = 0; i < rects.size(); i++) {
QRect destRect = rects.at(i);
QRect srcRect(destRect.x()-topLeft.x(), destRect.y()-topLeft.y(), destRect.width(), destRect.height());
painter->drawImage(destRect.topLeft(), image, srcRect);
}
}
//! [3]
//! [4]
void DBScreen::exposeRegion(QRegion region, int changing)
{
QLinuxFbScreen::exposeRegion(region, changing);
QLinuxFbScreen::blit(*image, QPoint(0, 0), region);
}
//! [4]
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