gwenview/lib/imagescaler.h

   1 /*
   2 Gwenview: an image viewer
   3 Copyright 2007 Aurélien Gâteau <aurelien.gateau@free.fr>
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (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 Free Software
  17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18
  19 */
  20 #ifndef IMAGESCALER_H
  21 #define IMAGESCALER_H
  22
  23 // Qt
  24 #include <QObject>
  25
  26 // KDE
  27 #include <ksharedptr.h>
  28
  29 #include <lib/gwenviewlib_export.h>
  30
  31 class QImage;
  32 class QRect;
  33 class QRectF;
  34 class QRegion;
  35
  36 namespace Gwenview {
  37
  38 class Document;
  39
  40 class ImageScalerPrivate;
  41 class GWENVIEWLIB_EXPORT ImageScaler : public QObject {
  42         Q_OBJECT
  43 public:
  44         ImageScaler(QObject* parent=0);
  45         ~ImageScaler();
  46         void setDocument(KSharedPtr<Document>);
  47         void setZoom(qreal);
  48         void setDestinationRegion(const QRegion&);
  49
  50         void setTransformationMode(Qt::TransformationMode);
  51
  52 Q_SIGNALS:
  53         void scaledRect(int left, int top, const QImage&);
  54
  55 private:
  56         ImageScalerPrivate * const d;
  57         void scaleRect(const QRect&);
  58
  59 private Q_SLOTS:
  60         void doScale();
  61 };
  62
  63 } // namespace
  64
  65
  66 #endif /* IMAGESCALER_H */