X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Fsrc%2Fgtkmm%2Fducktransform_rotate.h;fp=synfig-studio%2Fsrc%2Fgtkmm%2Fducktransform_rotate.h;h=5a4a33836070e0fc566f0ee2aa928b886ce836a2;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-studio/src/gtkmm/ducktransform_rotate.h b/synfig-studio/src/gtkmm/ducktransform_rotate.h
new file mode 100644
index 0000000..5a4a338
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+++ b/synfig-studio/src/gtkmm/ducktransform_rotate.h
@@ -0,0 +1,75 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file ducktransform_rotate.h
+**	\brief Template Header
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+**	This package 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 package 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.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_STUDIO_DUCK_TRANSFORM_ROTATE_H
+#define __SYNFIG_STUDIO_DUCK_TRANSFORM_ROTATE_H
+
+/* === H E A D E R S ======================================================= */
+
+#include "duckmatic.h"
+#include <synfig/angle.h>
+
+/* === M A C R O S ========================================================= */
+
+/* === T Y P E D E F S ===================================================== */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+namespace studio {
+
+class Transform_Rotate : public synfig::Transform
+{
+private:
+	synfig::Angle angle;
+	synfig::Vector origin;
+	synfig::Real sin_val;
+	synfig::Real cos_val;
+
+public:
+	Transform_Rotate(const synfig::GUID& guid, const synfig::Angle& angle,const synfig::Vector& origin=synfig::Vector(0,0)):
+		Transform(guid),
+		angle(angle),
+		origin(origin),
+		sin_val(synfig::Angle::sin(angle).get()),
+		cos_val(synfig::Angle::cos(angle).get())
+	{
+	}
+
+	synfig::Vector perform(const synfig::Vector& x)const
+	{
+		synfig::Point pos(x-origin);
+		return synfig::Point(cos_val*pos[0]-sin_val*pos[1],sin_val*pos[0]+cos_val*pos[1])+origin;
+	}
+	synfig::Vector unperform(const synfig::Vector& x)const
+	{
+		synfig::Point pos(x-origin);
+		return synfig::Point(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1])+origin;
+	}
+};
+
+};
+
+/* === E N D =============================================================== */
+
+#endif