src/panels/information/informationpanelcontent.h

   1 /***************************************************************************
   2  *   Copyright (C) 2009-2010 by Peter Penz <peter.penz19@gmail.com>        *
   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 #ifndef INFORMATIONPANELCONTENT_H
  21 #define INFORMATIONPANELCONTENT_H
  22
  23 #include <KFileItem>
  24 #include <config-baloo.h>
  25
  26 #include <QPointer>
  27 #include <QUrl>
  28 #include <QWidget>
  29
  30 class KFileItemList;
  31 class PhononWidget;
  32 class PixmapViewer;
  33 class PlacesItemModel;
  34 class QPixmap;
  35 class QString;
  36 class QLabel;
  37 class QScrollArea;
  38
  39 namespace KIO {
  40   class PreviewJob;
  41 }
  42
  43 #ifndef HAVE_BALOO
  44 class KFileMetaDataWidget;
  45 #else
  46 namespace Baloo {
  47     class FileMetaDataWidget;
  48 }
  49 #endif
  50
  51 /**
  52  * @brief Manages the widgets that display the meta information
  53 *         for file items of the Information Panel.
  54  */
  55 class InformationPanelContent : public QWidget
  56 {
  57     Q_OBJECT
  58
  59 public:
  60     explicit InformationPanelContent(QWidget* parent = nullptr);
  61     ~InformationPanelContent() override;
  62
  63     /**
  64      * Shows the meta information for the item \p item.
  65      * The preview of the item is generated asynchronously,
  66      * the other meta information are fetched synchronously.
  67      */
  68     void showItem(const KFileItem& item);
  69
  70     /**
  71      * Shows the meta information for the items \p items.
  72      */
  73     void showItems(const KFileItemList& items);
  74
  75     void setPreviewVisible(bool visible);
  76
  77     KFileItemList items();
  78
  79 signals:
  80     void urlActivated( const QUrl& url );
  81
  82 public slots:
  83     /**
  84      * Is invoked after the file meta data configuration dialog has been
  85      * closed and refreshes the visibility of the meta data.
  86      */
  87     void refreshMetaData();
  88
  89 protected:
  90     /** @see QObject::eventFilter() */
  91     bool eventFilter(QObject* obj, QEvent* event) override;
  92
  93 private slots:
  94     /**
  95      * Is invoked if no preview is available for the item. In this
  96      * case the icon will be shown.
  97      */
  98     void showIcon(const KFileItem& item);
  99
 100     /**
 101      * Is invoked if a preview is available for the item. The preview
 102      * \a pixmap is shown inside the info page.
 103      */
 104     void showPreview(const KFileItem& item, const QPixmap& pixmap);
 105
 106     /**
 107      * Marks the currently shown preview as outdated
 108      * by greying the content.
 109      */
 110     void markOutdatedPreview();
 111
 112     void slotHasVideoChanged(bool hasVideo);
 113
 114 private:
 115     /**
 116      * Sets the text for the label \a m_nameLabel and assures that the
 117      * text is split in a way that it can be wrapped within the
 118      * label width (QLabel::setWordWrap() does not work if the
 119      * text represents one extremely long word).
 120      */
 121     void setNameLabelText(const QString& text);
 122
 123     /**
 124      * Adjusts the sizes of the widgets dependent on the available
 125      * width given by \p width.
 126      */
 127     void adjustWidgetSizes(int width);
 128
 129 private:
 130     KFileItem m_item;
 131
 132     QPointer<KIO::PreviewJob> m_previewJob;
 133     QTimer* m_outdatedPreviewTimer;
 134
 135     PixmapViewer* m_preview;
 136     PhononWidget* m_phononWidget;
 137     QLabel* m_nameLabel;
 138 #ifndef HAVE_BALOO
 139     KFileMetaDataWidget* m_metaDataWidget;
 140 #else
 141     Baloo::FileMetaDataWidget* m_metaDataWidget;
 142 #endif
 143     QScrollArea* m_metaDataArea;
 144
 145     PlacesItemModel* m_placesItemModel;
 146 };
 147
 148 #endif // INFORMATIONPANELCONTENT_H