browser.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/legal
 **
 ** This file is part of the examples 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 Digia Plc 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 "browser.h"

 #include "albumview.h"
 #include "artistview.h"
 #include "photoview.h"
 #include "songview.h"

 #include "qdocumentgallery.h"

 #include <QtGui>

 Browser::Browser(QWidget *parent, Qt::WindowFlags flags)
     : QMainWindow(parent, flags)
     , gallery(0)
     , stack(0)
     , artistView(0)
     , albumArtistView(0)
     , albumView(0)
     , songView(0)
     , photoView(0)
 {
     gallery = new QDocumentGallery;

     artistView = new ArtistView(QDocumentGallery::Artist, gallery);
     connect(artistView, SIGNAL(showAlbums(QVariant,QString)),
             this, SLOT(showAlbums(QVariant,QString)));
     connect(artistView, SIGNAL(showSongs(QVariant,QString)),
             this, SLOT(showSongs(QVariant,QString)));

     albumArtistView = new ArtistView(QDocumentGallery::AlbumArtist, gallery);
     connect(albumArtistView, SIGNAL(showAlbums(QVariant,QString)),
             this, SLOT(showAlbums(QVariant,QString)));
     connect(albumArtistView, SIGNAL(showSongs(QVariant,QString)),
             this, SLOT(showSongs(QVariant,QString)));

     albumView = new AlbumView(gallery);
     connect(albumView, SIGNAL(showSongs(QVariant,QString)),
             this, SLOT(showSongs(QVariant,QString)));

     songView = new SongView(gallery);

     photoView = new PhotoView(gallery);

     stack = new QStackedWidget;
     stack->addWidget(artistView);
     stack->addWidget(albumArtistView);
     stack->addWidget(albumView);
     stack->addWidget(songView);
     stack->addWidget(photoView);

     menuBar()->addAction(tr("Artists"), this, SLOT(showArtists()));
     menuBar()->addAction(tr("Album Artists"), this, SLOT(showAlbumArtists()));
     menuBar()->addAction(tr("Albums"), this, SLOT(showAlbums()));
     menuBar()->addAction(tr("Songs"), this, SLOT(showSongs()));
     menuBar()->addAction(tr("Photos"), this, SLOT(showPhotos()));

     setCentralWidget(stack);

 #ifdef Q_WS_MAEMO_5
     setAttribute(Qt::WA_Maemo5StackedWindow);
 #endif
 }

 Browser::~Browser()
 {
 }

 void Browser::showArtists()
 {
     showView(artistView, tr("Artists"));
 }

 void Browser::showArtists(const QVariant &containerId, const QString &title)
 {
 #ifdef Q_WS_MAEMO_5
     ArtistView *artistView = new ArtistView(QDocumentGallery::Artist, gallery);
     connect(artistView, SIGNAL(showAlbums(QVariant,QString)),
             this, SLOT(showAlbums(QVariant,QString)));
     connect(artistView, SIGNAL(showSongs(QVariant,QString)),
             this, SLOT(showSongs(QVariant,QString)));
 #endif

     showView(artistView, containerId, title);
 }

 void Browser::showAlbumArtists()
 {
     showView(albumArtistView, tr("Album Artists"));
 }

 void Browser::showAlbumArtists(const QVariant &containerId, const QString &title)
 {
 #ifdef Q_WS_MAEMO_5
     ArtistView *albumArtistView = new ArtistView(QDocumentGallery::AlbumArtist, gallery);
     connect(albumArtistView, SIGNAL(showAlbums(QVariant,QString)),
             this, SLOT(showAlbums(QVariant,QString)));
     connect(albumArtistView, SIGNAL(showSongs(QVariant,QString)),
             this, SLOT(showSongs(QVariant,QString)));
 #endif

     showView(albumArtistView, containerId, title);
 }

 void Browser::showAlbums()
 {
     showView(albumView, tr("Albums"));
 }

 void Browser::showAlbums(const QVariant &containerId, const QString &title)
 {
 #ifdef Q_WS_MAEMO_5
     AlbumView *albumView = new AlbumView(gallery);
     connect(albumView, SIGNAL(showSongs(QVariant,QString)),
             this, SLOT(showSongs(QVariant,QString)));
 #endif

     showView(albumView, containerId, title);
 }

 void Browser::showSongs()
 {
     showView(songView, tr("Songs"));
 }

 void Browser::showSongs(const QVariant &containerId, const QString &title)
 {
 #ifdef Q_WS_MAEMO_5
     SongView *songView = new SongView(gallery);
 #endif

     showView(songView, containerId, title);
 }

 void Browser::showPhotos()
 {
     showView(photoView, tr("Photos"));
 }

 void Browser::showPhotos(const QVariant &containerId, const QString &title)
 {
 #ifdef Q_WS_MAEMO_5
     PhotoView *photoView = new PhotoView(gallery);
 #endif

     showView(photoView, containerId, title);
 }

 void Browser::showView(GalleryView *view, const QString &title)
 {
     view->showChildren(QVariant());

     stack->setCurrentWidget(view);

     setWindowTitle(title);
 }

 void Browser::showView(GalleryView *view, const QVariant &containerId, const QString &title)
 {
     view->showChildren(containerId);

 #ifdef Q_WS_MAEMO_5
     QWidget *parent = qobject_cast<QWidget *>(sender());
     if (parent)
         view->setParent(parent->window(), Qt::Window);
     view->setAttribute(Qt::WA_Maemo5StackedWindow);
     view->setAttribute(Qt::WA_DeleteOnClose);
     view->setWindowTitle(title);
     view->show();
 #else
     stack->setCurrentWidget(view);

     setWindowTitle(title);
 #endif
 }