ThumbnailView/ThumbnailPainter.h

   1 /* Copyright (C) 2003-2009 Jesper K. Pedersen <blackie@kde.org>
   2
   3    This program is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU General Public
   5    License as published by the Free Software Foundation; either
   6    version 2 of the License, or (at your option) any later version.
   7
   8    This program 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    General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program; see the file COPYING.  If not, write to
  15    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16    Boston, MA 02110-1301, USA.
  17 */
  18 #ifndef THUMBNAILPAINTER_H
  19 #define THUMBNAILPAINTER_H
  20
  21 #include "ThumbnailComponent.h"
  22 #include "DB/ResultId.h"
  23 #include <QMutex>
  24 #include <QSet>
  25 #include <QObject>
  26 #include "ImageManager/ImageClient.h"
  27 #include "enums.h"
  28
  29 class QTimer;
  30 class QString;
  31 class QRect;
  32 class QPainter;
  33
  34 namespace ThumbnailView {
  35
  36 class ThumbnailWidget;
  37 class CellGeometry;
  38 class ThumbnailModel;
  39 class ThumbnailFactory;
  40
  41 class ThumbnailPainter :public QObject, public ImageManager::ImageClient, private ThumbnailComponent
  42 {
  43     Q_OBJECT
  44
  45 public:
  46     ThumbnailPainter( ThumbnailFactory* factory );
  47     void paintCell ( QPainter * p, int row, int col );
  48     OVERRIDE void pixmapLoaded( const QString&, const QSize& size, const QSize& fullSize, int, const QImage&, const bool loadedOK);
  49     bool thumbnailStillNeeded( const QString& fileName ) const;
  50     void repaint( const DB::ResultId& id );
  51
  52 private slots:
  53     void slotRepaint();
  54
  55 private:
  56     void paintCellPixmap( QPainter*, int row, int col );
  57     void paintCellText( QPainter*, int row, int col );
  58     void paintCellBackground( QPainter*, int row, int col );
  59     QRect cellTextGeometry( int row, int col ) const;
  60     QString thumbnailText( const DB::ResultId& mediaId ) const;
  61     void paintStackedIndicator( QPainter* painter, const QRect &rect, const DB::ResultId& mediaId);
  62     void paintBoundingRect( QPainter* painter, int row, int col );
  63     void paintDropIndicator( QPainter* painter, int row, int col );
  64     void requestThumbnail( const DB::ResultId& id );
  65
  66 private:
  67     QTimer* _repaintTimer;
  68     QMutex _pendingRepaintLock;
  69     IdSet _pendingRepaint;
  70 };
  71
  72 }
  73
  74 #endif /* THUMBNAILPAINTER_H */
  75