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[synfig.git] / synfig-core / trunk / src / synfig / transform.cpp

diff --git a/synfig-core/trunk/src/synfig/transform.cpp b/synfig-core/trunk/src/synfig/transform.cpp
new file mode 100644 (file)
index 0000000..17826f4
--- /dev/null
+++ b/synfig-core/trunk/src/synfig/transform.cpp
@@ -0,0 +1,148 @@
+/* === S I N F G =========================================================== */
+/*!    \file template.cpp
+**     \brief Template File
+**
+**     $Id: transform.cpp,v 1.2 2005/01/24 05:00:18 darco Exp $
+**
+**     \legal
+**     Copyright (c) 2002 Robert B. Quattlebaum Jr.
+**
+**     This software and associated documentation
+**     are CONFIDENTIAL and PROPRIETARY property of
+**     the above-mentioned copyright holder.
+**
+**     You may not copy, print, publish, or in any
+**     other way distribute this software without
+**     a prior written agreement with
+**     the copyright holder.
+**     \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#      include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#      include <config.h>
+#endif
+
+#include "transform.h"
+#include <algorithm>
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace sinfg;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+sinfg::GUID
+TransformStack::get_guid()const
+{
+       GUID ret(0);
+       
+       for(const_iterator iter(begin());iter!=end();++iter)
+               ret%=(*iter)->get_guid();
+       return ret;
+}
+
+sinfg::Vector
+TransformStack::perform(const sinfg::Vector& x)const
+{
+       sinfg::Vector ret(x);
+       
+       for(const_reverse_iterator iter(rbegin());iter!=rend();++iter)
+               ret=(*iter)->perform(ret);
+       
+       return ret;
+}
+
+sinfg::Vector
+TransformStack::unperform(const sinfg::Vector& x)const
+{
+       sinfg::Vector ret(x);
+       
+       for(const_iterator iter(begin());iter!=end();++iter)
+               ret=(*iter)->unperform(ret);
+       
+       return ret;
+}
+
+sinfg::Rect
+TransformStack::perform(const sinfg::Rect& x)const
+{
+       Point min(x.get_min());
+       Point max(x.get_max());
+       Rect ret(perform(min),perform(max));
+
+       std::swap(min[1],max[1]);
+       ret
+               .expand(perform(min))
+               .expand(perform(max))
+       ;
+       return ret;
+}
+
+sinfg::Rect
+TransformStack::unperform(const sinfg::Rect& x)const
+{
+       Point min(x.get_min());
+       Point max(x.get_max());
+       Rect ret(unperform(min),unperform(max));
+
+       std::swap(min[1],max[1]);
+       ret
+               .expand(unperform(min))
+               .expand(unperform(max))
+       ;
+       return ret;
+}
+
+sinfg::Rect
+Transform::perform(const sinfg::Rect& x)const
+{
+       if(x.area()>1000000000000.0)
+               return Rect::full_plane();
+
+       Point min(x.get_min());
+       Point max(x.get_max());
+
+       Rect ret(perform(min),perform(max));
+
+       std::swap(min[1],max[1]);
+       ret
+               .expand(perform(min))
+               .expand(perform(max))
+       ;
+       return ret;
+}
+
+sinfg::Rect
+Transform::unperform(const sinfg::Rect& x)const
+{
+       if(x.area()>1000000000000.0)
+               return Rect::full_plane();
+
+       Point min(x.get_min());
+       Point max(x.get_max());
+               
+       Rect ret(unperform(min),unperform(max));
+
+       std::swap(min[1],max[1]);
+       ret
+               .expand(unperform(min))
+               .expand(unperform(max))
+       ;
+       return ret;
+}