kio/kfile/kpreviewprops.cpp

   1 /* This file is part of the KDE libraries
   2     Copyright (C) 2005 Stephan Binner <binner@kde.org>
   3
   4     This library is free software; you can redistribute it and/or
   5     modify it under the terms of the GNU Library General Public
   6     License version 2 as published by the Free Software Foundation.
   7
   8     This library is distributed in the hope that it will be useful,
   9     but WITHOUT ANY WARRANTY; without even the implied warranty of
  10     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11     Library General Public License for more details.
  12
  13     You should have received a copy of the GNU Library General Public License
  14     along with this library; see the file COPYING.LIB.  If not, write to
  15     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16     Boston, MA 02110-1301, USA.
  17
  18  */
  19
  20 #include "kpreviewprops.h"
  21 #include <kio/previewjob.h>
  22
  23 #include <QtGui/QLayout>
  24
  25 #include <kfilemetapreview.h>
  26 #include <kglobalsettings.h>
  27 #include <klocale.h>
  28
  29 class KPreviewPropsPlugin::KPreviewPropsPluginPrivate
  30 {
  31 public:
  32     KPreviewPropsPluginPrivate()  {}
  33     ~KPreviewPropsPluginPrivate() {}
  34 };
  35
  36 KPreviewPropsPlugin::KPreviewPropsPlugin(KPropertiesDialog* props)
  37   : KPropertiesDialogPlugin(props),d(new KPreviewPropsPluginPrivate)
  38 {
  39
  40     if (properties->items().count()>1)
  41         return;
  42
  43     createLayout();
  44 }
  45
  46 void KPreviewPropsPlugin::createLayout()
  47 {
  48     // let the dialog create the page frame
  49     QFrame* topframe = new QFrame();
  50     properties->addPage(topframe, i18n("P&review"));
  51     topframe->setFrameStyle(QFrame::NoFrame);
  52
  53     QVBoxLayout* tmp = new QVBoxLayout(topframe);
  54     tmp->setMargin(0);
  55     tmp->setSpacing(0);
  56
  57     preview = new KFileMetaPreview(topframe);
  58
  59     tmp->addWidget(preview) ;
  60     connect( properties, SIGNAL( currentPageChanged( KPageWidgetItem *, KPageWidgetItem * ) ), SLOT( currentPageChanged( KPageWidgetItem *, KPageWidgetItem * ) ) );
  61 }
  62
  63 KPreviewPropsPlugin::~KPreviewPropsPlugin()
  64 {
  65     delete d;
  66 }
  67
  68 bool KPreviewPropsPlugin::supports( const KFileItemList &_items )
  69 {
  70     if ( _items.count() != 1 )
  71         return false;
  72     bool metaDataEnabled = KGlobalSettings::showFilePreview(_items.first().url());
  73     if (!metaDataEnabled)
  74         return false;
  75     const KMimeType::Ptr mime = _items.first().mimeTypePtr();
  76     const QStringList supportedMimeTypes = KIO::PreviewJob::supportedMimeTypes();
  77     foreach(const QString& supportedMime, supportedMimeTypes) {
  78         if (mime->is(supportedMime))
  79     return true;
  80     }
  81     return false;
  82 }
  83
  84 void KPreviewPropsPlugin::currentPageChanged( KPageWidgetItem *current, KPageWidgetItem * )
  85 {
  86     if ( current->widget() != preview->parent() )
  87         return;
  88
  89     disconnect( properties, SIGNAL( currentPageChanged( KPageWidgetItem *, KPageWidgetItem * ) ), this, SLOT( currentPageChanged( KPageWidgetItem *, KPageWidgetItem * ) ) );
  90     preview->showPreview(properties->item().url());
  91 }
  92
  93 #include "kpreviewprops.moc"