Remove ancient trunk folder from svn repository
[synfig.git] / synfig-core / src / synfig / valuenode_stripes.cpp
diff --git a/synfig-core/src/synfig/valuenode_stripes.cpp b/synfig-core/src/synfig/valuenode_stripes.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file valuenode_stripes.cpp
+**     \brief Implementation of the "Stripes" valuenode conversion.
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 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
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#      include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#      include <config.h>
+#endif
+
+#include "general.h"
+#include "valuenode_stripes.h"
+#include "valuenode_const.h"
+#include <stdexcept>
+#include "color.h"
+#include "gradient.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === 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 ======================================================= */
+
+synfig::ValueNode_Stripes::ValueNode_Stripes():LinkableValueNode(synfig::ValueBase::TYPE_GRADIENT)
+{
+       set_link("color1",ValueNode_Const::create(Color::alpha()));
+       set_link("color2",ValueNode_Const::create(Color::black()));
+       set_link("stripes",stripes_=ValueNode_Const::create(int(5)));
+       set_link("width",ValueNode_Const::create(0.5));
+}
+
+LinkableValueNode*
+ValueNode_Stripes::create_new()const
+{
+       return new ValueNode_Stripes();
+}
+
+ValueNode_Stripes*
+ValueNode_Stripes::create(const ValueBase& x)
+{
+       ValueBase::Type id(x.get_type());
+
+       if(id!=ValueBase::TYPE_GRADIENT)
+       {
+               assert(0);
+               throw runtime_error(String(_("Stripes"))+_(":Bad type ")+ValueBase::type_local_name(id));
+       }
+
+       ValueNode_Stripes* value_node=new ValueNode_Stripes();
+
+       assert(value_node->get_type()==id);
+
+       return value_node;
+}
+
+synfig::ValueNode_Stripes::~ValueNode_Stripes()
+{
+       unlink_all();
+}
+
+synfig::ValueBase
+synfig::ValueNode_Stripes::operator()(Time t)const
+{
+       if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+               printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+       const int total((*stripes_)(t).get(int()));
+       int i;
+       Gradient ret;
+
+       if(total<=0)
+               return ret;
+
+       const Color color1((*color1_)(t).get(Color()));
+       const Color color2((*color2_)(t).get(Color()));
+       const float width(max(0.0,min(1.0,(*width_)(t).get(Real()))));
+
+       const float stripe_width_a(width/total);
+       const float stripe_width_b((1.0-width)/total);
+
+       for(i=0;i<total;i++)
+       {
+               float pos(float(i)/total+stripe_width_b/2);
+               ret.push_back(Gradient::CPoint(pos,color1));
+               ret.push_back(Gradient::CPoint(pos,color2));
+               pos+=stripe_width_a;
+               ret.push_back(Gradient::CPoint(pos,color2));
+               ret.push_back(Gradient::CPoint(pos,color1));
+       }
+       return ret;
+}
+
+bool
+ValueNode_Stripes::set_link_vfunc(int i,ValueNode::Handle value)
+{
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+       case 0: CHECK_TYPE_AND_SET_VALUE(color1_,  ValueBase::TYPE_COLOR);
+       case 1: CHECK_TYPE_AND_SET_VALUE(color2_,  ValueBase::TYPE_COLOR);
+       case 2: CHECK_TYPE_AND_SET_VALUE(stripes_, ValueBase::TYPE_INTEGER);
+       case 3: CHECK_TYPE_AND_SET_VALUE(width_,   ValueBase::TYPE_REAL);
+       }
+       return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Stripes::get_link_vfunc(int i)const
+{
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+               case 0:
+                       return color1_;
+               case 1:
+                       return color2_;
+               case 2:
+                       return stripes_;
+               case 3:
+                       return width_;
+       }
+       return 0;
+}
+
+int
+ValueNode_Stripes::link_count()const
+{
+       return 4;
+}
+
+String
+ValueNode_Stripes::link_local_name(int i)const
+{
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+               case 0:
+                       return _("Color 1");
+               case 1:
+                       return _("Color 2");
+               case 2:
+                       return _("Stripe Count");
+               case 3:
+                       return _("Width");
+               default:
+                       return String();
+       }
+}
+
+String
+ValueNode_Stripes::link_name(int i)const
+{
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+               case 0:
+                       return "color1";
+               case 1:
+                       return "color2";
+               case 2:
+                       return "stripes";
+               case 3:
+                       return "width";
+               default:
+                       return String();
+       }
+}
+
+int
+ValueNode_Stripes::get_link_index_from_name(const String &name)const
+{
+       if(name=="color1")
+               return 0;
+       if(name=="color2")
+               return 1;
+       if(name=="stripes")
+               return 2;
+       if(name=="width")
+               return 3;
+       throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_Stripes::get_name()const
+{
+       return "stripes";
+}
+
+String
+ValueNode_Stripes::get_local_name()const
+{
+       return _("Stripes");
+}
+
+bool
+ValueNode_Stripes::check_type(ValueBase::Type type)
+{
+       return type==ValueBase::TYPE_GRADIENT;
+}