--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/slideshow/slideshow.cpp Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,263 @@
+/****************************************************************************
+**
+** 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 Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "slideshow.h"
+
+#include <qmediaservice.h>
+#include <qmediaplaylist.h>
+#include <qvideowidget.h>
+
+#include <QtGui>
+
+SlideShow::SlideShow(QWidget *parent)
+ : QWidget(parent)
+ , imageViewer(0)
+ , playlist(0)
+ , statusLabel(0)
+ , countdownLabel(0)
+ , playButton(0)
+ , stopButton(0)
+ , viewerLayout(0)
+{
+ imageViewer = new QMediaImageViewer(this);
+
+ connect(imageViewer, SIGNAL(stateChanged(QMediaImageViewer::State)),
+ this, SLOT(stateChanged(QMediaImageViewer::State)));
+ connect(imageViewer, SIGNAL(mediaStatusChanged(QMediaImageViewer::MediaStatus)),
+ this, SLOT(statusChanged(QMediaImageViewer::MediaStatus)));
+ connect(imageViewer, SIGNAL(elapsedTimeChanged(int)), this, SLOT(elapsedTimeChanged(int)));
+
+ playlist = new QMediaPlaylist;
+ imageViewer->bind(playlist);
+
+ connect(playlist, SIGNAL(loaded()), this, SLOT(playlistLoaded()));
+ connect(playlist, SIGNAL(loadFailed()), this, SLOT(playlistLoadFailed()));
+
+ connect(playlist, SIGNAL(loaded()), this, SLOT(playlistLoaded()));
+ connect(playlist, SIGNAL(loadFailed()), this, SLOT(playlistLoadFailed()));
+
+ QVideoWidget *videoWidget = new QVideoWidget;
+ imageViewer->bind(videoWidget);
+
+ statusLabel = new QLabel(tr("%1 Images").arg(0));
+ statusLabel->setAlignment(Qt::AlignCenter);
+
+ viewerLayout = new QStackedLayout;
+ viewerLayout->setStackingMode(QStackedLayout::StackAll);
+ viewerLayout->addWidget(videoWidget);
+ viewerLayout->addWidget(statusLabel);
+
+ statusLabel = new QLabel(tr("%1 Images").arg(0));
+ statusLabel->setAlignment(Qt::AlignCenter);
+
+ viewerLayout = new QStackedLayout;
+ viewerLayout->setStackingMode(QStackedLayout::StackAll);
+ viewerLayout->addWidget(videoWidget);
+ viewerLayout->addWidget(statusLabel);
+
+ QMenu *openMenu = new QMenu(this);
+ openMenu->addAction(tr("Directory..."), this, SLOT(openDirectory()));
+ openMenu->addAction(tr("Playlist..."), this, SLOT(openPlaylist()));
+
+ QToolButton *openButton = new QToolButton;
+ openButton->setIcon(style()->standardIcon(QStyle::SP_DialogOpenButton));
+ openButton->setMenu(openMenu);
+ openButton->setPopupMode(QToolButton::InstantPopup);
+
+ playButton = new QToolButton;
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
+ playButton->setEnabled(false);
+
+ connect(playButton, SIGNAL(clicked()), this, SLOT(play()));
+ connect(this, SIGNAL(enableButtons(bool)), playButton, SLOT(setEnabled(bool)));
+
+ stopButton = new QToolButton;
+ stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop));
+ stopButton->setEnabled(false);
+
+ connect(stopButton, SIGNAL(clicked()), imageViewer, SLOT(stop()));
+
+ QAbstractButton *nextButton = new QToolButton;
+ nextButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward));
+ nextButton->setEnabled(false);
+
+ connect(nextButton, SIGNAL(clicked()), playlist, SLOT(next()));
+ connect(this, SIGNAL(enableButtons(bool)), nextButton, SLOT(setEnabled(bool)));
+
+ QAbstractButton *previousButton = new QToolButton;
+ previousButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward));
+ previousButton->setEnabled(false);
+
+ connect(previousButton, SIGNAL(clicked()), playlist, SLOT(previous()));
+ connect(this, SIGNAL(enableButtons(bool)), previousButton, SLOT(setEnabled(bool)));
+
+ countdownLabel = new QLabel;
+
+ QBoxLayout *controlLayout = new QHBoxLayout;
+ controlLayout->setMargin(0);
+ controlLayout->addWidget(openButton);
+ controlLayout->addStretch(1);
+ controlLayout->addWidget(previousButton);
+ controlLayout->addWidget(stopButton);
+ controlLayout->addWidget(playButton);
+ controlLayout->addWidget(nextButton);
+ controlLayout->addStretch(1);
+ controlLayout->addWidget(countdownLabel);
+
+ QBoxLayout *layout = new QVBoxLayout;
+ layout->addLayout(viewerLayout);
+ layout->addLayout(controlLayout);
+
+ setLayout(layout);
+
+}
+
+void SlideShow::openPlaylist()
+{
+ QString path = QFileDialog::getOpenFileName(this);
+
+ if (!path.isEmpty()) {
+ playlist->clear();
+ playlist->load(QUrl::fromLocalFile(path));
+ }
+}
+
+void SlideShow::openDirectory()
+{
+ QString path = QFileDialog::getExistingDirectory(this);
+
+ if (!path.isEmpty()) {
+ playlist->clear();
+
+ QDir dir(path);
+
+ foreach (const QString &fileName, dir.entryList(QDir::Files))
+ playlist->addMedia(QUrl::fromLocalFile(dir.absoluteFilePath(fileName)));
+
+ statusChanged(imageViewer->mediaStatus());
+
+ emit enableButtons(playlist->mediaCount() > 0);
+ }
+}
+
+void SlideShow::play()
+{
+ switch (imageViewer->state()) {
+ case QMediaImageViewer::StoppedState:
+ case QMediaImageViewer::PausedState:
+ imageViewer->play();
+ break;
+ case QMediaImageViewer::PlayingState:
+ imageViewer->pause();
+ break;
+ }
+}
+
+void SlideShow::stateChanged(QMediaImageViewer::State state)
+{
+ switch (state) {
+ case QMediaImageViewer::StoppedState:
+ stopButton->setEnabled(false);
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
+ break;
+ case QMediaImageViewer::PlayingState:
+ stopButton->setEnabled(true);
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause));
+ break;
+ case QMediaImageViewer::PausedState:
+ stopButton->setEnabled(true);
+ playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
+ break;
+ }
+}
+
+void SlideShow::statusChanged(QMediaImageViewer::MediaStatus status)
+{
+ switch (status) {
+ case QMediaImageViewer::NoMedia:
+ statusLabel->setText(tr("%1 Images").arg(playlist->mediaCount()));
+ viewerLayout->setCurrentIndex(1);
+ break;
+ case QMediaImageViewer::LoadingMedia:
+ statusLabel->setText(tr("Image %1 of %2\nLoading...")
+ .arg(playlist->currentIndex())
+ .arg(playlist->mediaCount()));
+ viewerLayout->setCurrentIndex(1);
+ break;
+ case QMediaImageViewer::LoadedMedia:
+ statusLabel->setText(tr("Image %1 of %2")
+ .arg(playlist->currentIndex())
+ .arg(playlist->mediaCount()));
+ viewerLayout->setCurrentIndex(0);
+ break;
+ case QMediaImageViewer::InvalidMedia:
+ statusLabel->setText(tr("Image %1 of %2\nInvalid")
+ .arg(playlist->currentIndex())
+ .arg(playlist->mediaCount()));
+ viewerLayout->setCurrentIndex(1);
+ break;
+ default:
+ break;
+ }
+}
+
+void SlideShow::playlistLoaded()
+{
+ statusChanged(imageViewer->mediaStatus());
+
+ emit enableButtons(playlist->mediaCount() > 0);
+}
+
+void SlideShow::playlistLoadFailed()
+{
+ statusLabel->setText(playlist->errorString());
+ viewerLayout->setCurrentIndex(1);
+
+ emit enableButtons(false);
+}
+
+void SlideShow::elapsedTimeChanged(int time)
+{
+ const int remaining = (imageViewer->timeout() - time) / 1000;
+
+ countdownLabel->setText(tr("%1:%2")
+ .arg(remaining / 60, 2, 10, QLatin1Char('0'))
+ .arg(remaining % 60, 2, 10, QLatin1Char('0')));
+}