/****************************************************************************+
−
**+
−
** Copyright (C) 2010 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.+
−
**+
−
** $QT_BEGIN_LICENSE:LGPL$+
−
** 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 Technology Preview License Agreement accompanying+
−
** this package.+
−
**+
−
** 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.+
−
**+
−
** If you have questions regarding the use of this file, please contact+
−
** Nokia at qt-info@nokia.com.+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
** $QT_END_LICENSE$+
−
**+
−
****************************************************************************/+
−
+
−
#include "framecapture.h"+
−
+
−
#include <iostream>+
−
#include <QtWebKit>+
−
+
−
FrameCapture::FrameCapture(): QObject(), m_percent(0)+
−
{+
−
    connect(&m_page, SIGNAL(loadProgress(int)), this, SLOT(printProgress(int)));+
−
    connect(&m_page, SIGNAL(loadFinished(bool)), this, SLOT(saveResult(bool)));+
−
}+
−
+
−
void FrameCapture::load(const QUrl &url, const QString &outputFileName)+
−
{+
−
    std::cout << "Loading " << qPrintable(url.toString()) << std::endl;+
−
    m_percent = 0;+
−
    int index = outputFileName.lastIndexOf('.');+
−
    m_fileName = (index == -1) ? outputFileName + ".png" : outputFileName;+
−
    m_page.mainFrame()->load(url);+
−
    m_page.mainFrame()->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAlwaysOff);+
−
    m_page.mainFrame()->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAlwaysOff);+
−
    m_page.setViewportSize(QSize(1024, 768));+
−
}+
−
+
−
void FrameCapture::printProgress(int percent)+
−
{+
−
    if (m_percent >= percent)+
−
        return;+
−
+
−
    while (m_percent++ < percent)+
−
        std::cout << "#" << std::flush;+
−
}+
−
+
−
void FrameCapture::saveResult(bool ok)+
−
{+
−
    std::cout << std::endl;+
−
+
−
    // crude error-checking+
−
    if (!ok) {+
−
        std::cerr << "Failed loading " << qPrintable(m_page.mainFrame()->url().toString()) << std::endl;+
−
        emit finished();+
−
        return;+
−
    }+
−
+
−
    // save each frame in different image files+
−
    saveFrame(m_page.mainFrame());+
−
+
−
    emit finished();+
−
}+
−
+
−
void FrameCapture::saveFrame(QWebFrame *frame)+
−
{+
−
    static int frameCounter = 0;+
−
+
−
    QString fileName(m_fileName);+
−
    if (frameCounter) {+
−
        int index = m_fileName.lastIndexOf('.');+
−
        fileName = fileName.insert(index, "_frame" + QString::number(frameCounter));+
−
    }+
−
+
−
    QImage image(frame->contentsSize(), QImage::Format_ARGB32_Premultiplied);+
−
    image.fill(Qt::transparent);+
−
+
−
    QPainter painter(&image);+
−
    painter.setRenderHint(QPainter::Antialiasing, true);+
−
    painter.setRenderHint(QPainter::TextAntialiasing, true);+
−
    painter.setRenderHint(QPainter::SmoothPixmapTransform, true);+
−
    frame->documentElement().render(&painter);+
−
    painter.end();+
−
+
−
    image.save(fileName);+
−
+
−
    ++frameCounter;+
−
    foreach(QWebFrame *childFrame, frame->childFrames())+
−
        saveFrame(childFrame);+
−
}+
−
+
−