src/metadatawidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Sebastian Trueg <trueg@kde.org>                 *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "metadatawidget.h"
  21
  22 #include "commentwidget.h"
  23
  24 #include <config-nepomuk.h>
  25
  26 #include <klocale.h>
  27 #include <KDebug>
  28 #include <KMessageBox>
  29
  30 #include <QtCore/QEvent>
  31 #include <QtGui/QLabel>
  32 #include <QtGui/QGridLayout>
  33 #include <QtGui/QTextEdit>
  34
  35 #ifdef HAVE_NEPOMUK
  36 #include "nepomukmassupdatejob.h"
  37 #include <nepomuk/kmetadatatagwidget.h>
  38 #include <nepomuk/resourcemanager.h>
  39 #include <nepomuk/resource.h>
  40 #include <nepomuk/variant.h>
  41 #include <nepomuk/kratingwidget.h>
  42 #include <Soprano/Vocabulary/Xesam>
  43 #include "tagcloud/resourcetaggingwidget.h"
  44 #endif
  45
  46
  47 bool MetaDataWidget::metaDataAvailable()
  48 {
  49 #ifdef HAVE_NEPOMUK
  50     return !Nepomuk::ResourceManager::instance()->init();
  51 #else
  52     return false;
  53 #endif
  54 }
  55
  56
  57 class MetaDataWidget::Private
  58 {
  59 public:
  60 #ifdef HAVE_NEPOMUK
  61     void loadComment(const QString& comment);
  62
  63     QMap<KUrl, Nepomuk::Resource> files;
  64
  65     CommentWidget* editComment;
  66     KRatingWidget* ratingWidget;
  67     Nepomuk::ResourceTaggingWidget* tagWidget;
  68 #endif
  69 };
  70
  71 #ifdef HAVE_NEPOMUK
  72 void MetaDataWidget::Private::loadComment(const QString& comment)
  73 {
  74     editComment->setComment( comment );
  75 }
  76 #endif
  77
  78
  79 MetaDataWidget::MetaDataWidget(QWidget* parent) :
  80     QWidget(parent)
  81 {
  82 #ifdef HAVE_NEPOMUK
  83     d = new Private;
  84     d->editComment = new CommentWidget(this);
  85     d->editComment->setFocusPolicy(Qt::ClickFocus);
  86     d->ratingWidget = new KRatingWidget(this);
  87     d->ratingWidget->setAlignment( Qt::AlignCenter );
  88     d->tagWidget = new Nepomuk::ResourceTaggingWidget(this);
  89     connect(d->ratingWidget, SIGNAL(ratingChanged(unsigned int)), this, SLOT(slotRatingChanged(unsigned int)));
  90     connect(d->editComment, SIGNAL(commentChanged(const QString&)), this, SLOT(slotCommentChanged(const QString&)));
  91     connect( d->tagWidget, SIGNAL( tagClicked( const Nepomuk::Tag& ) ), this, SLOT( slotTagClicked( const Nepomuk::Tag& ) ) );
  92
  93     QVBoxLayout* lay = new QVBoxLayout(this);
  94     lay->setMargin(0);
  95     lay->addWidget(d->ratingWidget);
  96     lay->addWidget(d->editComment);
  97     QHBoxLayout* hbox = new QHBoxLayout;
  98     lay->addWidget( d->tagWidget );
  99 #else
 100     d = 0;
 101 #endif
 102 }
 103
 104
 105 MetaDataWidget::~MetaDataWidget()
 106 {
 107     delete d;
 108 }
 109
 110
 111 void MetaDataWidget::setFile(const KUrl& url)
 112 {
 113     kDebug() << url;
 114     KUrl::List urls;
 115     urls.append( url );
 116     setFiles( urls );
 117 }
 118
 119
 120 void MetaDataWidget::setFiles(const KUrl::List& urls)
 121 {
 122 #ifdef HAVE_NEPOMUK
 123     d->files.clear();
 124     bool first = true;
 125     QList<Nepomuk::Resource> fileRes;
 126     Q_FOREACH( KUrl url, urls ) {
 127         Nepomuk::Resource file( url, Soprano::Vocabulary::Xesam::File() );
 128         d->files.insert( url, file );
 129         fileRes.append( file );
 130
 131         if ( !first &&
 132              d->ratingWidget->rating() != file.rating() ) {
 133             d->ratingWidget->setRating( 0 ); // reset rating
 134         }
 135         else if ( first ) {
 136             d->ratingWidget->setRating( (qint32)(file.rating()) );
 137         }
 138
 139         if ( !first &&
 140              d->editComment->comment() != file.description() ) {
 141             d->loadComment( QString() );
 142         }
 143         else if ( first ) {
 144             d->loadComment( file.description() );
 145         }
 146         first = false;
 147     }
 148     d->tagWidget->setResources( fileRes );
 149 #endif
 150 }
 151
 152
 153 void MetaDataWidget::slotCommentChanged( const QString& s )
 154 {
 155 #ifdef HAVE_NEPOMUK
 156     Nepomuk::MassUpdateJob* job = Nepomuk::MassUpdateJob::commentResources( d->files.values(), s );
 157     connect( job, SIGNAL( result( KJob* ) ),
 158              this, SLOT( metadataUpdateDone() ) );
 159     setEnabled( false ); // no updates during execution
 160     job->start();
 161 #endif
 162 }
 163
 164
 165 void MetaDataWidget::slotRatingChanged(unsigned int rating)
 166 {
 167 #ifdef HAVE_NEPOMUK
 168     Nepomuk::MassUpdateJob* job = Nepomuk::MassUpdateJob::rateResources( d->files.values(), rating );
 169     connect( job, SIGNAL( result( KJob* ) ),
 170              this, SLOT( metadataUpdateDone() ) );
 171     setEnabled( false ); // no updates during execution
 172     job->start();
 173 #endif
 174 }
 175
 176
 177 void MetaDataWidget::metadataUpdateDone()
 178 {
 179     setEnabled( true );
 180 }
 181
 182
 183 bool MetaDataWidget::eventFilter(QObject* obj, QEvent* event)
 184 {
 185     return QWidget::eventFilter(obj, event);
 186 }
 187
 188
 189 void MetaDataWidget::slotTagClicked( const Nepomuk::Tag& tag )
 190 {
 191     // FIXME
 192 #ifdef HAVE_NEPOMUK
 193     KMessageBox::information( this, "FIXME: connect me to the dolphinmodel: tags:/" + tag.genericLabel() );
 194 #endif
 195 }
 196
 197 #include "metadatawidget.moc"