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 QDialogButtonBox;
  36 class QString;
  37 class QLabel;
  38 class QScrollArea;
  39
  40 namespace KIO {
  41   class PreviewJob;
  42 }
  43
  44 namespace Baloo {
  45     class FileMetaDataWidget;
  46 }
  47
  48 /**
  49  * @brief Manages the widgets that display the meta information
  50 *         for file items of the Information Panel.
  51  */
  52 class InformationPanelContent : public QWidget
  53 {
  54     Q_OBJECT
  55
  56 public:
  57     explicit InformationPanelContent(QWidget* parent = nullptr);
  58     ~InformationPanelContent() override;
  59
  60     /**
  61      * Shows the meta information for the item \p item.
  62      * The preview of the item is generated asynchronously,
  63      * the other meta information are fetched synchronously.
  64      */
  65     void showItem(const KFileItem& item);
  66
  67     /**
  68      * Shows the meta information for the items \p items and its preview
  69      */
  70     void showItems(const KFileItemList& items);
  71
  72     KFileItemList items();
  73
  74     /**
  75      * Refreshes the preview display, hiding it if needed
  76      */
  77     void refreshPreview();
  78
  79     /**
  80      * Switch the metadatawidget into configuration mode
  81      */
  82     void configureShownProperties();
  83
  84 signals:
  85     void urlActivated( const QUrl& url );
  86     void configurationFinished();
  87
  88 public slots:
  89     /**
  90      * Is invoked after the file meta data configuration dialog has been
  91      * closed and refreshes the displayed meta data by the panel.
  92      */
  93     void refreshMetaData();
  94
  95 protected:
  96     /** @see QObject::eventFilter() */
  97     bool eventFilter(QObject* obj, QEvent* event) override;
  98
  99 private slots:
 100     /**
 101      * Is invoked if no preview is available for the item. In this
 102      * case the icon will be shown.
 103      */
 104     void showIcon(const KFileItem& item);
 105
 106     /**
 107      * Is invoked if a preview is available for the item. The preview
 108      * \a pixmap is shown inside the info page.
 109      */
 110     void showPreview(const KFileItem& item, const QPixmap& pixmap);
 111
 112     /**
 113      * Marks the currently shown preview as outdated
 114      * by greying the content.
 115      */
 116     void markOutdatedPreview();
 117
 118     void slotHasVideoChanged(bool hasVideo);
 119
 120 private:
 121     /**
 122      * Sets the text for the label \a m_nameLabel and assures that the
 123      * text is split in a way that it can be wrapped within the
 124      * label width (QLabel::setWordWrap() does not work if the
 125      * text represents one extremely long word).
 126      */
 127     void setNameLabelText(const QString& text);
 128
 129     /**
 130      * Adjusts the sizes of the widgets dependent on the available
 131      * width given by \p width.
 132      */
 133     void adjustWidgetSizes(int width);
 134
 135 private:
 136     KFileItem m_item;
 137
 138     QPointer<KIO::PreviewJob> m_previewJob;
 139     QTimer* m_outdatedPreviewTimer;
 140
 141     PixmapViewer* m_preview;
 142     PhononWidget* m_phononWidget;
 143     QLabel* m_nameLabel;
 144     Baloo::FileMetaDataWidget* m_metaDataWidget;
 145     QScrollArea* m_metaDataArea;
 146     QLabel* m_configureLabel;
 147     QDialogButtonBox* m_configureButtons;
 148
 149     PlacesItemModel* m_placesItemModel;
 150 };
 151
 152 #endif // INFORMATIONPANELCONTENT_H