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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date : 2005-07-18
+ * Description : Free rotation threaded image filter.
+ *
+ * Copyright (C) 2004-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software Foundation;
+ * either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * ============================================================ */
+
+#ifndef FREE_ROTATION_H
+#define FREE_ROTATION_H
+
+// TQt includes.
+
+#include <tqsize.h>
+#include <tqcolor.h>
+
+// Digikam includes.
+
+#include "dimgthreadedfilter.h"
+
+namespace DigikamFreeRotationImagesPlugin
+{
+
+class FreeRotation : public Digikam::DImgThreadedFilter
+{
+
+public:
+
+ FreeRotation(Digikam::DImg *orgImage, TQObject *parent=0, double angle=0.0,
+ bool antialiasing=true, int autoCrop=NoAutoCrop, TQColor backgroundColor=TQt::black,
+ int orgW=0, int orgH=0);
+
+ ~FreeRotation(){};
+
+ TQSize getNewSize(void){ return m_newSize; };
+
+public:
+
+ enum AutoCropTypes
+ {
+ NoAutoCrop=0,
+ WidestArea,
+ LargestArea
+ };
+
+private:
+
+ virtual void filterImage(void);
+
+ inline int setPosition (int Width, int X, int Y)
+ {
+ return (Y *Width*4 + 4*X);
+ };
+
+ inline bool isInside (int Width, int Height, int X, int Y)
+ {
+ bool bIsWOk = ((X < 0) ? false : (X >= Width ) ? false : true);
+ bool bIsHOk = ((Y < 0) ? false : (Y >= Height) ? false : true);
+ return (bIsWOk && bIsHOk);
+ };
+
+private:
+
+ bool m_antiAlias;
+
+ int m_autoCrop;
+ int m_orgW;
+ int m_orgH;
+
+ double m_angle;
+
+ TQSize m_newSize;
+
+ TQColor m_backgroundColor;
+};
+
+} // NameSpace DigikamFreeRotationImagesPlugin
+
+#endif /* FREE_ROTATION_H */