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     {
  55         editComment->blockSignals(true);
  56         if (comment.isEmpty()) {
  57             editComment->setFontItalic(true);
  58             editComment->setText(i18n("Click to add comment..."));
  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 #ifdef HAVE_KMETADATA
  81     d = new Private;
  82     d->editComment = new QTextEdit(this);
  83     d->tagWidget = new Nepomuk::KMetaData::TagWidget(this);
  84     d->ratingWidget = new KRatingWidget(this);
  85     connect(d->ratingWidget, SIGNAL(ratingChanged(int)), this, SLOT(slotRatingChanged(int)));
  86     connect(d->editComment, SIGNAL(textChanged()), this, SLOT(slotCommentChanged()));
  87
  88     QVBoxLayout* lay = new QVBoxLayout(this);
  89     lay->setMargin(0);
  90     QHBoxLayout* hbox = new QHBoxLayout;
  91     hbox->addWidget(new QLabel(i18n("Rating:"), this));
  92     hbox->addStretch(1);
  93     hbox->addWidget(d->ratingWidget);
  94     lay->addLayout(hbox);
  95     lay->addWidget(d->editComment);
  96     hbox = new QHBoxLayout;
  97     hbox->addWidget(new QLabel(i18n("Tags:"), this));
  98     hbox->addWidget(d->tagWidget, 1);
  99     lay->addLayout(hbox);
 100
 101     d->editComment->installEventFilter(this);
 102     d->editComment->viewport()->installEventFilter(this);
 103 #else
 104     d = 0L;
 105 #endif
 106 }
 107
 108
 109 MetaDataWidget::~MetaDataWidget()
 110 {
 111     delete d;
 112 }
 113
 114
 115 void MetaDataWidget::setFile(const KUrl& url)
 116 {
 117 #ifdef HAVE_KMETADATA
 118     d->fileUrl = url;
 119     d->file = Nepomuk::KMetaData::File(url.url());
 120     d->file.setLocation(url.url());
 121     d->ratingWidget->setRating(d->file.getRating());
 122     d->tagWidget->setTaggedResource(d->file);
 123     d->loadComment(d->file.getComment());
 124 #endif
 125 }
 126
 127
 128 void MetaDataWidget::setFiles(const KUrl::List urls)
 129 {
 130 #ifdef HAVE_KMETADATA
 131     // FIXME: support multiple files
 132     setFile(urls.first());
 133 #endif
 134 }
 135
 136
 137 void MetaDataWidget::slotCommentChanged()
 138 {
 139 #ifdef HAVE_KMETADATA
 140     d->file.setComment(d->editComment->toPlainText());
 141 #endif
 142 }
 143
 144
 145 void MetaDataWidget::slotRatingChanged(int r)
 146 {
 147 #ifdef HAVE_KMETADATA
 148     d->file.setRating(r);
 149 #endif
 150 }
 151
 152
 153 bool MetaDataWidget::eventFilter(QObject* obj, QEvent* event)
 154 {
 155 #ifdef HAVE_KMETADATA
 156     if (obj == d->editComment->viewport()
 157             || obj == d->editComment) {
 158         if (event->type() == QEvent::FocusOut) {
 159             // make sure the info text is displayed again
 160             d->loadComment(d->editComment->toPlainText());
 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"