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+/*
+ * copyright (c) 2004 Michael Thaler <michael.thaler@physik.tu-muenchen.de>
+ *
+ * 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 of the license, 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.
+ *
+ * you should have received a copy of the gnu general public license
+ * along with this program; if not, write to the free software
+ * foundation, inc., 675 mass ave, cambridge, ma 02139, usa.
+ */
+#ifndef KIS_ROTATE_VISITOR_H_
+#define KIS_ROTATE_VISITOR_H_
+
+#include "kis_types.h"
+#include "kis_progress_subject.h"
+
+class QRect;
+class KisPaintDevice;
+class KisProgressDisplayInterface;
+
+class KisRotateVisitor : public KisProgressSubject {
+ typedef KisProgressSubject super;
+
+ /* Structs for the image rescaling routine */
+
+public:
+ KisRotateVisitor();
+ ~KisRotateVisitor();
+
+ void visitKisPaintDevice(KisPaintDevice* dev);
+
+ void rotate(double angle, bool rotateAboutImageCentre, KisProgressDisplayInterface *progress);
+ void shear(double angleX, double angleY, KisProgressDisplayInterface *progress);
+
+private:
+ KisPaintDeviceSP m_dev;
+
+ // Implement KisProgressSubject
+ bool m_cancelRequested;
+ virtual void cancel() { m_cancelRequested = true; }
+
+ void initProgress(Q_INT32 totalSteps);
+ void incrementProgress();
+ void setProgressDone();
+
+ KisProgressDisplayInterface *m_progress;
+ Q_INT32 m_progressStep;
+ Q_INT32 m_progressTotalSteps;
+ Q_INT32 m_lastProgressPerCent;
+
+ KisPaintDeviceSP rotateRight90(KisPaintDeviceSP src);
+ KisPaintDeviceSP rotateLeft90(KisPaintDeviceSP src);
+ KisPaintDeviceSP rotate180(KisPaintDeviceSP src);
+ KisPaintDeviceSP rotate(KisPaintDeviceSP src, double angle, KisPoint centreOfRotation);
+
+ KisPaintDeviceSP xShear(KisPaintDeviceSP src, double shearX);
+ KisPaintDeviceSP yShear(KisPaintDeviceSP src, double shearY);
+
+};
+
+inline KisRotateVisitor::KisRotateVisitor()
+{
+}
+
+inline KisRotateVisitor::~KisRotateVisitor()
+{
+}
+
+inline void KisRotateVisitor::visitKisPaintDevice(KisPaintDevice* dev)
+{
+ m_dev = dev;
+}
+#endif // KIS_ROTATE_VISITOR_H_