Long live Qt 4.5!

1 files changed, 233 insertions, 0 deletions

diff --git a/demos/embedded/fluidlauncher/slideshow.cpp b/demos/embedded/fluidlauncher/slideshow.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 <QBasicTimer>
+#include <QList>
+#include <QImage>
+#include <QDir>
+#include <QPainter>
+#include <QPaintEvent>
+
+#include <QDebug>
+
+
+#include "slideshow.h"
+
+
+class SlideShowPrivate
+{
+public:
+    SlideShowPrivate();
+
+    int currentSlide;
+    int slideInterval;
+    QBasicTimer interSlideTimer;
+    QStringList imagePaths;
+
+    void showNextSlide();
+};
+
+
+
+SlideShowPrivate::SlideShowPrivate()
+{
+    currentSlide = 0;
+    slideInterval = 10000; // Default to 10 sec interval
+}
+
+
+void SlideShowPrivate::showNextSlide()
+{
+    currentSlide++;
+    if (currentSlide >= imagePaths.size())
+      currentSlide = 0;
+}
+
+
+
+SlideShow::SlideShow()
+{
+    d = new SlideShowPrivate;
+
+    setAttribute(Qt::WA_StaticContents, true);
+    setAttribute(Qt::WA_OpaquePaintEvent, true);
+    setAttribute(Qt::WA_NoSystemBackground, true);
+
+    setMouseTracking(true);
+}
+
+
+SlideShow::~SlideShow()
+{
+    delete d;
+}
+
+
+void SlideShow::addImageDir(QString dirName)
+{
+    QDir dir(dirName);
+
+    QStringList fileNames = dir.entryList(QDir::Files | QDir::Readable, QDir::Name);
+
+    for (int i=0; i<fileNames.count(); i++)
+        d->imagePaths << dir.absoluteFilePath(fileNames[i]);
+}
+
+void SlideShow::addImage(QString filename)
+{
+    d->imagePaths << filename;
+}
+
+
+void SlideShow::clearImages()
+{
+    d->imagePaths.clear();
+}
+
+
+void SlideShow::startShow()
+{
+    showFullScreen();
+    d->interSlideTimer.start(d->slideInterval, this);
+    d->showNextSlide();
+    update();
+}
+
+
+void SlideShow::stopShow()
+{
+    hide();
+    d->interSlideTimer.stop();
+}
+
+
+int SlideShow::slideInterval()
+{
+    return d->slideInterval;
+}
+
+void SlideShow::setSlideInterval(int val)
+{
+    d->slideInterval = val;
+}
+
+
+void SlideShow::timerEvent(QTimerEvent* event)
+{
+    Q_UNUSED(event);
+    d->showNextSlide();
+    update();
+}
+
+
+void SlideShow::paintEvent(QPaintEvent *event)
+{
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing, false);
+
+    if (d->imagePaths.size() > 0) {
+        QPixmap slide = QPixmap(d->imagePaths[d->currentSlide]);
+        QSize slideSize = slide.size();
+        QSize scaledSize = QSize(qMin(slideSize.width(), size().width()),
+            qMin(slideSize.height(), size().height()));
+        if (slideSize != scaledSize)
+            slide = slide.scaled(scaledSize, Qt::KeepAspectRatio);
+
+        QRect pixmapRect(qMax( (size().width() - slide.width())/2, 0),
+                         qMax( (size().height() - slide.height())/2, 0),
+                         slide.width(),
+                         slide.height());
+
+        if (pixmapRect.top() > 0) {
+            // Fill in top & bottom rectangles:
+            painter.fillRect(0, 0, size().width(), pixmapRect.top(), Qt::black);
+            painter.fillRect(0, pixmapRect.bottom(), size().width(), size().height(), Qt::black);
+        }
+
+        if (pixmapRect.left() > 0) {
+            // Fill in left & right rectangles:
+            painter.fillRect(0, 0, pixmapRect.left(), size().height(), Qt::black);
+            painter.fillRect(pixmapRect.right(), 0, size().width(), size().height(), Qt::black);
+        }
+
+        painter.drawPixmap(pixmapRect, slide);
+
+    } else
+        painter.fillRect(event->rect(), Qt::black);
+}
+
+
+void SlideShow::keyPressEvent(QKeyEvent* event)
+{
+    Q_UNUSED(event);
+    emit inputReceived();
+}
+
+
+void SlideShow::mouseMoveEvent(QMouseEvent* event)
+{
+    Q_UNUSED(event);
+    emit inputReceived();
+}
+
+
+void SlideShow::mousePressEvent(QMouseEvent* event)
+{
+    Q_UNUSED(event);
+    emit inputReceived();
+}
+
+
+void SlideShow::mouseReleaseEvent(QMouseEvent* event)
+{
+    Q_UNUSED(event);
+    emit inputReceived();
+}
+
+
+void SlideShow::showEvent(QShowEvent * event )
+{
+    Q_UNUSED(event);
+#ifndef QT_NO_CURSOR
+    setCursor(Qt::BlankCursor);
+#endif
+}
+