src/views/tooltips/filemetadatatooltip.h

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Peter Penz <peter.penz19@gmail.com>             *
   3  *   Copyright (C) 2008 by Fredrik Höglund <fredrik@kde.org>               *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #ifndef FILEMETADATATOOLTIP_H
  22 #define FILEMETADATATOOLTIP_H
  23
  24 #include <QWidget>
  25
  26 class KFileItemList;
  27 class KFileMetaDataWidget;
  28 class QLabel;
  29
  30 /**
  31  * @brief Tooltip, that shows the meta information and a preview of one
  32  *        or more files.
  33  */
  34 class FileMetaDataToolTip : public QWidget
  35 {
  36     Q_OBJECT
  37
  38 public:
  39     FileMetaDataToolTip(QWidget* parent = 0);
  40     virtual ~FileMetaDataToolTip();
  41
  42     void setPreview(const QPixmap& pixmap);
  43     QPixmap preview() const;
  44
  45     void setName(const QString& name);
  46     QString name() const;
  47
  48     /**
  49      * Sets the items for which the meta data should be shown.
  50      * The signal metaDataRequestFinished() will be emitted,
  51      * as soon as the meta data for the items has been received.
  52      */
  53     void setItems(const KFileItemList& items);
  54     KFileItemList items() const;
  55
  56 signals:
  57     /**
  58      * Is emitted after the meta data has been received for the items
  59      * set by FileMetaDataToolTip::setItems().
  60      */
  61     void metaDataRequestFinished(const KFileItemList& items);
  62
  63 protected:
  64     virtual void paintEvent(QPaintEvent* event);
  65
  66 private:
  67     /**
  68      * Helper method for FileMetaDataToolTip::paintEvent() to adjust the painter path \p path
  69      * by rounded corners.
  70      */
  71     static void arc(QPainterPath& path,
  72                     qreal cx, qreal cy,
  73                     qreal radius, qreal angle,
  74                     qreal sweepLength);
  75
  76 private:
  77     QLabel* m_preview;
  78     QLabel* m_name;
  79     KFileMetaDataWidget* m_fileMetaDataWidget;
  80 };
  81
  82 #endif