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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the demonstration applications 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 <QtXml>
#include "fluidlauncher.h"
#define DEFAULT_INPUT_TIMEOUT 10000
FluidLauncher::FluidLauncher(QStringList* args)
{
pictureFlowWidget = new PictureFlow();
slideShowWidget = new SlideShow();
inputTimer = new QTimer();
QRect screen_size = QApplication::desktop()->screenGeometry();
QObject::connect(pictureFlowWidget, SIGNAL(itemActivated(int)), this, SLOT(launchApplication(int)));
QObject::connect(pictureFlowWidget, SIGNAL(inputReceived()), this, SLOT(resetInputTimeout()));
QObject::connect(slideShowWidget, SIGNAL(inputReceived()), this, SLOT(switchToLauncher()));
QObject::connect(inputTimer, SIGNAL(timeout()), this, SLOT(inputTimedout()));
inputTimer->setSingleShot(true);
inputTimer->setInterval(DEFAULT_INPUT_TIMEOUT);
pictureFlowWidget->setSlideSize(QSize( (screen_size.width()*2)/5, (screen_size.height()*2)/5 ));
bool success;
int configIndex = args->indexOf("-config");
if ( (configIndex != -1) && (configIndex != args->count()-1) )
success = loadConfig(args->at(configIndex+1));
else
success = loadConfig("config.xml");
if (success) {
populatePictureFlow();
pictureFlowWidget->showFullScreen();
inputTimer->start();
} else {
pictureFlowWidget->setAttribute(Qt::WA_DeleteOnClose, true);
pictureFlowWidget->close();
}
}
FluidLauncher::~FluidLauncher()
{
delete pictureFlowWidget;
delete slideShowWidget;
}
bool FluidLauncher::loadConfig(QString configPath)
{
QFile xmlFile(configPath);
if (!xmlFile.exists() || (xmlFile.error() != QFile::NoError)) {
qDebug() << "ERROR: Unable to open config file " << configPath;
return false;
}
slideShowWidget->clearImages();
QDomDocument xmlDoc;
xmlDoc.setContent(&xmlFile, true);
QDomElement rootElement = xmlDoc.documentElement();
// Process the demos node:
QDomNodeList demoNodes = rootElement.firstChildElement("demos").elementsByTagName("example");
for (int i=0; i<demoNodes.size(); i++) {
QDomElement element = demoNodes.item(i).toElement();
if (element.hasAttribute("filename")) {
DemoApplication* newDemo = new DemoApplication(
element.attribute("filename"),
element.attribute("name", "Unamed Demo"),
element.attribute("image"),
element.attribute("args").split(" "));
demoList.append(newDemo);
}
}
// Process the slideshow node:
QDomElement slideshowElement = rootElement.firstChildElement("slideshow");
if (slideshowElement.hasAttribute("timeout")) {
bool valid;
int timeout = slideshowElement.attribute("timeout").toInt(&valid);
if (valid)
inputTimer->setInterval(timeout);
}
if (slideshowElement.hasAttribute("interval")) {
bool valid;
int interval = slideshowElement.attribute("interval").toInt(&valid);
if (valid)
slideShowWidget->setSlideInterval(interval);
}
for (QDomNode node=slideshowElement.firstChild(); !node.isNull(); node=node.nextSibling()) {
QDomElement element = node.toElement();
if (element.tagName() == "imagedir")
slideShowWidget->addImageDir(element.attribute("dir"));
else if (element.tagName() == "image")
slideShowWidget->addImage(element.attribute("image"));
}
// Append an exit Item
DemoApplication* exitItem = new DemoApplication(QString(), QLatin1String("Exit Embedded Demo"), QString(), QStringList());
demoList.append(exitItem);
return true;
}
void FluidLauncher::populatePictureFlow()
{
pictureFlowWidget->setSlideCount(demoList.count());
for (int i=demoList.count()-1; i>=0; --i) {
pictureFlowWidget->setSlide(i, *(demoList[i]->getImage()));
pictureFlowWidget->setSlideCaption(i, demoList[i]->getCaption());
}
pictureFlowWidget->setCurrentSlide(demoList.count()/2);
}
void FluidLauncher::launchApplication(int index)
{
// NOTE: Clearing the caches will free up more memory for the demo but will cause
// a delay upon returning, as items are reloaded.
//pictureFlowWidget->clearCaches();
if (index == demoList.size() -1) {
qApp->quit();
return;
}
inputTimer->stop();
pictureFlowWidget->hide();
QObject::connect(demoList[index], SIGNAL(demoFinished()), this, SLOT(demoFinished()));
demoList[index]->launch();
}
void FluidLauncher::switchToLauncher()
{
slideShowWidget->stopShow();
inputTimer->start();
}
void FluidLauncher::resetInputTimeout()
{
if (inputTimer->isActive())
inputTimer->start();
}
void FluidLauncher::inputTimedout()
{
switchToSlideshow();
}
void FluidLauncher::switchToSlideshow()
{
inputTimer->stop();
slideShowWidget->startShow();
}
void FluidLauncher::demoFinished()
{
pictureFlowWidget->showFullScreen();
inputTimer->start();
}
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