1 /* === S Y N F I G ========================================================= */
3 ** \brief Template Header
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 /* ========================================================================= */
23 /* === S T A R T =========================================================== */
25 #ifndef __SYNFIG_TRANSFORM_H
26 #define __SYNFIG_TRANSFORM_H
28 /* === H E A D E R S ======================================================= */
36 /* === M A C R O S ========================================================= */
38 /* === T Y P E D E F S ===================================================== */
40 /* === C L A S S E S & S T R U C T S ======================================= */
44 class Transform : public etl::shared_object
49 typedef etl::handle<Transform> Handle;
52 Transform(const GUID& guid=GUID(0)):guid_(guid) { }
56 const GUID& get_guid()const { return guid_; }
58 virtual ~Transform() { }
59 virtual synfig::Vector perform(const synfig::Vector& x)const=0;
60 virtual synfig::Vector unperform(const synfig::Vector& x)const=0;
62 virtual synfig::Rect perform(const synfig::Rect& x)const;
63 virtual synfig::Rect unperform(const synfig::Rect& x)const;
65 }; // END of class Transform
67 class TransformStack : public std::list<Transform::Handle>
72 synfig::Vector perform(const synfig::Vector& x)const;
73 synfig::Vector unperform(const synfig::Vector& x)const;
75 synfig::Rect perform(const synfig::Rect& x)const;
76 synfig::Rect unperform(const synfig::Rect& x)const;
78 void push(const Transform::Handle& x) { if(x)push_back(x); }
79 void pop() { pop_back(); }
80 }; // END of class TransformStack
82 }; // END of namespace synfig
84 /* === E N D =============================================================== */