/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the test suite of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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#include "shower.h"+
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+
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#include "qengines.h"+
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+
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#include <QApplication>+
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#include <QSvgRenderer>+
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#include <QPainter>+
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#include <QPaintEvent>+
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#include <QFile>+
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#include <QTextStream>+
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#include <QTemporaryFile>+
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#include <QDir>+
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#include <QtDebug>+
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+
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static QString loadFile(const QString &name)+
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{+
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    QFile file(name);+
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    if (!file.open(QFile::ReadOnly)) {+
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        qDebug("Can't open file '%s'", qPrintable(name));+
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        return QString();+
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    }+
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    QTextStream str(&file);+
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    return str.readAll();+
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}+
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+
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Shower::Shower(const QString &file,+
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               const QString &engineName)+
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    : QWidget(0)+
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{+
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    foreach(QEngine *qengine, QtEngines::self()->engines()) {+
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        if (qengine->name() == engineName) {+
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            engine = qengine;+
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            break;+
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        }+
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    }+
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+
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    QFileInfo fi(file);+
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    baseDataDir = fi.absolutePath();+
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    if (file.endsWith("svg")) {+
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        renderer = new QSvgRenderer(this);+
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        renderer->load(file);+
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    } else {+
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        qps = QFileInfo(file);+
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        QString script = loadFile(qps.absoluteFilePath());+
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        qpsScript = script.split("\n", QString::SkipEmptyParts);+
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        renderer = 0;+
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        if (qpsScript.isEmpty()) {+
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            printf("failed to read file: '%s'\n", qPrintable(qps.fileName()));+
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            return;+
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        }+
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    }+
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}+
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+
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+
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QSize Shower::sizeHint() const+
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{+
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    return QSize(600, 600);+
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}+
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+
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+
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void Shower::paintEvent(QPaintEvent *)+
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{+
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    if (buffer.size() != size()) {+
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        buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);+
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        QPainter p(&buffer);+
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        p.setViewport(0, 0, width(), height());+
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        p.eraseRect(0, 0, width(), height());+
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        engine->prepare(size());+
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        if (renderer) {+
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            engine->render(renderer, QString("sample"));+
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        } else {+
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            engine->render(qpsScript, qps.absoluteFilePath());+
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        }+
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        if (!engine->drawOnPainter(&p)) {+
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            QString tempFileName = QString("%1sample.png").arg(QDir::tempPath());+
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            engine->save(tempFileName);+
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            QImage img(tempFileName);+
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            engine->cleanup();+
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            QFile::remove(tempFileName);+
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            p.drawImage(0, 0, img);+
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        }+
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    }+
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    QPainter pt(this);+
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    pt.drawImage(0, 0, buffer);+
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}+
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