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Diffstat (limited to 'examples/qws/dbscreen/dbscreen.cpp')
-rw-r--r-- | examples/qws/dbscreen/dbscreen.cpp | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/examples/qws/dbscreen/dbscreen.cpp b/examples/qws/dbscreen/dbscreen.cpp new file mode 100644 index 0000000000..bd26848859 --- /dev/null +++ b/examples/qws/dbscreen/dbscreen.cpp @@ -0,0 +1,99 @@ + /**************************************************************************** + ** + ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) + ** + ** This file is part of the examples of the Qt Toolkit. + ** + ** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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 are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ + ** + ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + ** + ****************************************************************************/ + +#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] + |