Remove ancient trunk folder from svn repository

[synfig.git] / synfig-core / src / modules / lyr_std / xorpattern.cpp

diff --git a/synfig-core/src/modules/lyr_std/xorpattern.cpp b/synfig-core/src/modules/lyr_std/xorpattern.cpp
new file mode 100644 (file)
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+++ b/synfig-core/src/modules/lyr_std/xorpattern.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file xorpattern.cpp
+**     \brief Implementation of the "XOR Pattern" layer
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2007-2008 Chris Moore
+**
+**     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
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#      include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#      include <config.h>
+#endif
+
+#include "xorpattern.h"
+
+#include <synfig/string.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+#include <synfig/paramdesc.h>
+#include <synfig/renddesc.h>
+#include <synfig/surface.h>
+#include <synfig/value.h>
+#include <synfig/valuenode.h>
+
+#endif
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(XORPattern);
+SYNFIG_LAYER_SET_NAME(XORPattern,"xor_pattern");
+SYNFIG_LAYER_SET_LOCAL_NAME(XORPattern,N_("XOR Pattern"));
+SYNFIG_LAYER_SET_CATEGORY(XORPattern,N_("Other"));
+SYNFIG_LAYER_SET_VERSION(XORPattern,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(XORPattern,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+XORPattern::XORPattern():
+       Layer_Composite (1.0,Color::BLEND_STRAIGHT),
+       origin(0.125,0.125),
+       size(0.25,0.25)
+{
+}
+
+bool
+XORPattern::set_param(const String & param, const ValueBase &value)
+{
+       IMPORT(origin);
+       IMPORT(size);
+
+       IMPORT_AS(origin,"pos");
+
+       return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+XORPattern::get_param(const String & param)const
+{
+       EXPORT(origin);
+       EXPORT(size);
+
+       EXPORT_NAME();
+       EXPORT_VERSION();
+
+       return Layer_Composite::get_param(param);
+}
+
+Color
+XORPattern::get_color(Context context, const Point &point)const
+{
+       if(get_amount()==0.0)
+               return context.get_color(point);
+
+       unsigned int a=(unsigned int)floor((point[0]-origin[0])/size[0]), b=(unsigned int)floor((point[1]-origin[1])/size[1]);
+       unsigned char rindex=(a^b);
+       unsigned char gindex=(a^(~b))*4;
+       unsigned char bindex=~(a^b)*2;
+
+       Color color((Color::value_type)rindex/(Color::value_type)255.0,
+                               (Color::value_type)gindex/(Color::value_type)255.0,
+                               (Color::value_type)bindex/(Color::value_type)255.0,
+                               1.0);
+
+       if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+               return color;
+       else
+               return Color::blend(color,context.get_color(point),get_amount(),get_blend_method());
+
+}
+
+Layer::Vocab
+XORPattern::get_param_vocab()const
+{
+       Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+       ret.push_back(ParamDesc("origin")
+               .set_local_name(_("Origin"))
+       );
+       ret.push_back(ParamDesc("size")
+               .set_local_name(_("Size"))
+               .set_origin("origin")
+       );
+
+       return ret;
+}
+
+synfig::Layer::Handle
+XORPattern::hit_check(synfig::Context context, const synfig::Point &getpos)const
+{
+       // if we have a zero amount
+       if(get_amount()==0.0)
+               // then the click passes down to our context
+               return context.hit_check(getpos);
+
+       synfig::Layer::Handle tmp;
+       // if we are behind the context, and the click hits something in the context
+       if(get_blend_method()==Color::BLEND_BEHIND && (tmp=context.hit_check(getpos)))
+               // then return the thing it hit in the context
+               return tmp;
+
+       // if we're using an 'onto' blend method and the click missed the context
+       if(Color::is_onto(get_blend_method()) && !(tmp=context.hit_check(getpos)))
+               // then it misses everything
+               return 0;
+
+       // otherwise the click hit us, since we're the size of the whole plane
+       return const_cast<XORPattern*>(this);
+}