Long live Qt 4.5!

1 files changed, 221 insertions, 0 deletions

diff --git a/demos/embedded/fluidlauncher/fluidlauncher.cpp b/demos/embedded/fluidlauncher/fluidlauncher.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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();
+}
+