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 <config-kmetadata.h>
  21
  22 #include "metadatawidget.h"
  23
  24 #include <klocale.h>
  25
  26 #include <QLabel>
  27 #include <QGridLayout>
  28 #include <QTextEdit>
  29
  30 #ifdef HAVE_KMETADATA
  31 #include <kmetadatatagwidget.h>
  32 #include <kmetadata/resourcemanager.h>
  33 #include <kmetadata/file.h>
  34 #include <kratingwidget.h>
  35 #include <kmetadatatagwidget.h>
  36 #endif
  37
  38
  39 bool MetaDataWidget::metaDataAvailable()
  40 {
  41 #ifdef HAVE_KMETADATA
  42     return !Nepomuk::KMetaData::ResourceManager::instance()->init();
  43 #else
  44     return false;
  45 #endif
  46 }
  47
  48
  49 class MetaDataWidget::Private
  50 {
  51 public:
  52 #ifdef HAVE_KMETADATA
  53     void loadComment( const QString& comment ) {
  54         editComment->blockSignals( true );
  55         if ( comment.isEmpty() ) {
  56             editComment->setFontItalic( true );
  57             editComment->setText( i18n( "Click to add comment..." ) );
  58         }
  59         else {
  60             editComment->setFontItalic( false );
  61             editComment->setText( comment );
  62         }
  63         editComment->blockSignals( false );
  64     }
  65
  66     KUrl fileUrl;
  67
  68     Nepomuk::KMetaData::File file;
  69
  70     QTextEdit* editComment;
  71     KRatingWidget* ratingWidget;
  72     Nepomuk::KMetaData::TagWidget* tagWidget;
  73 #endif
  74 };
  75
  76
  77 MetaDataWidget::MetaDataWidget( QWidget* parent )
  78     : QWidget( parent )
  79 {
  80     d = new Private;
  81
  82 #ifdef HAVE_KMETADATA
  83     d->editComment = new QTextEdit( this );
  84     d->tagWidget = new Nepomuk::KMetaData::TagWidget( this );
  85     d->ratingWidget = new KRatingWidget( this );
  86     connect( d->ratingWidget, SIGNAL(ratingChanged(int)), this, SLOT(slotRatingChanged(int)) );
  87     connect( d->editComment, SIGNAL( textChanged() ), this, SLOT( slotCommentChanged() ) );
  88
  89     QVBoxLayout* lay = new QVBoxLayout( this );
  90     lay->setMargin( 0 );
  91     QHBoxLayout* hbox = new QHBoxLayout;
  92     hbox->addWidget( new QLabel( i18n( "Rating:" ), this ) );
  93     hbox->addStretch( 1 );
  94     hbox->addWidget( d->ratingWidget );
  95     lay->addLayout( hbox );
  96     lay->addWidget( d->editComment );
  97     hbox = new QHBoxLayout;
  98     hbox->addWidget( new QLabel( i18n( "Tags:" ), this ) );
  99     hbox->addWidget( d->tagWidget, 1 );
 100     lay->addLayout( hbox );
 101
 102     d->editComment->installEventFilter( this );
 103     d->editComment->viewport()->installEventFilter( this );
 104 #endif
 105 }
 106
 107
 108 MetaDataWidget::~MetaDataWidget()
 109 {
 110     delete d;
 111 }
 112
 113
 114 void MetaDataWidget::setFile( const KUrl& url )
 115 {
 116 #ifdef HAVE_KMETADATA
 117     d->fileUrl = url;
 118     d->file = Nepomuk::KMetaData::File( url.url() );
 119     d->file.setLocation( url.url() );
 120     d->ratingWidget->setRating( d->file.getRating() );
 121     d->tagWidget->setTaggedResource( d->file );
 122     d->loadComment( d->file.getComment() );
 123 #endif
 124 }
 125
 126
 127 void MetaDataWidget::setFiles( const KUrl::List urls )
 128 {
 129 #ifdef HAVE_KMETADATA
 130     // FIXME: support multiple files
 131     setFile( urls.first() );
 132 #endif
 133 }
 134
 135
 136 void MetaDataWidget::slotCommentChanged()
 137 {
 138 #ifdef HAVE_KMETADATA
 139     d->file.setComment( d->editComment->toPlainText() );
 140 #endif
 141 }
 142
 143
 144 void MetaDataWidget::slotRatingChanged( int r )
 145 {
 146 #ifdef HAVE_KMETADATA
 147     d->file.setRating( r );
 148 #endif
 149 }
 150
 151
 152 bool MetaDataWidget::eventFilter( QObject* obj, QEvent* event )
 153 {
 154 #ifdef HAVE_KMETADATA
 155     if (  obj == d->editComment->viewport()
 156           || obj == d->editComment ) {
 157         if ( event->type() == QEvent::FocusOut ) {
 158             // make sure the info text is displayed again
 159             d->loadComment( d->editComment->toPlainText() );
 160         }
 161         else if ( event->type() == QEvent::FocusIn ) {
 162             d->editComment->setFontItalic( false );
 163             if ( d->file.getComment().isEmpty() )
 164                 d->editComment->setText( QString() );
 165         }
 166     }
 167 #endif
 168
 169     return QWidget::eventFilter( obj, event );
 170 }
 171
 172 #include "metadatawidget.moc"