--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_repeat_gradient.cpp
+** \brief Implementation of the "Repeat Gradient" valuenode conversion.
+**
+** $Id$
+**
+** \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
+*/
+/* ========================================================================= */
+
+/* === 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_repeat_gradient.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_Repeat_Gradient::ValueNode_Repeat_Gradient(const Gradient& x):LinkableValueNode(synfig::ValueBase::TYPE_GRADIENT)
+{
+ set_link("gradient",ValueNode_Const::create(x));
+ set_link("count",count_=ValueNode_Const::create(int(3)));
+ set_link("width",ValueNode_Const::create(0.5));
+ set_link("specify_start",ValueNode_Const::create(true));
+ set_link("specify_end",ValueNode_Const::create(true));
+ set_link("start_color",ValueNode_Const::create(Color::alpha()));
+ set_link("end_color",ValueNode_Const::create(Color::alpha()));
+}
+
+LinkableValueNode*
+ValueNode_Repeat_Gradient::create_new()const
+{
+ return new ValueNode_Repeat_Gradient(Gradient());
+}
+
+ValueNode_Repeat_Gradient*
+ValueNode_Repeat_Gradient::create(const ValueBase& x)
+{
+ ValueBase::Type id(x.get_type());
+
+ if(id!=ValueBase::TYPE_GRADIENT)
+ {
+ assert(0);
+ throw runtime_error(String(_("Repeat Gradient"))+_(":Bad type ")+ValueBase::type_local_name(id));
+ }
+
+ ValueNode_Repeat_Gradient* value_node=new ValueNode_Repeat_Gradient(x.get(Gradient()));
+
+ assert(value_node->get_type()==id);
+
+ return value_node;
+}
+
+synfig::ValueNode_Repeat_Gradient::~ValueNode_Repeat_Gradient()
+{
+ unlink_all();
+}
+
+synfig::ValueBase
+synfig::ValueNode_Repeat_Gradient::operator()(Time t)const
+{
+ if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+ printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+ const int count((*count_)(t).get(int()));
+ int i;
+ Gradient ret;
+
+ if(count<=0)
+ return ret;
+
+ const Gradient gradient((*gradient_)(t).get(Gradient()));
+ const float width(max(0.0,min(1.0,(*width_)(t).get(Real()))));
+ const bool specify_start((*specify_start_)(t).get(bool()));
+ const bool specify_end((*specify_end_)(t).get(bool()));
+
+ const float gradient_width_a(width/count);
+ const float gradient_width_b((1.0-width)/count);
+
+ Gradient::const_iterator iter;
+ Gradient::const_reverse_iterator riter;
+ if (specify_start)
+ ret.push_back(Gradient::CPoint(0,(*start_color_)(t).get(Color())));
+ for(i=0;i<count;i++)
+ {
+ float pos(float(i)/count);
+ if (width != 0.0)
+ for(iter=gradient.begin();iter!=gradient.end();iter++)
+ ret.push_back(Gradient::CPoint(pos+gradient_width_a*iter->pos,iter->color));
+ pos+=gradient_width_a;
+ if (width != 1.0)
+ for(riter=gradient.rbegin();riter!=gradient.rend();riter++)
+ ret.push_back(Gradient::CPoint(pos+gradient_width_b*(1-(riter->pos)),riter->color));
+ }
+ if (specify_end)
+ ret.push_back(Gradient::CPoint(1,(*end_color_)(t).get(Color())));
+ return ret;
+}
+
+bool
+ValueNode_Repeat_Gradient::set_link_vfunc(int i,ValueNode::Handle value)
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: CHECK_TYPE_AND_SET_VALUE(gradient_, get_type());
+ case 1: CHECK_TYPE_AND_SET_VALUE(count_, ValueBase::TYPE_INTEGER);
+ case 2: CHECK_TYPE_AND_SET_VALUE(width_, ValueBase::TYPE_REAL);
+ case 3: CHECK_TYPE_AND_SET_VALUE(specify_start_, ValueBase::TYPE_BOOL);
+ case 4: CHECK_TYPE_AND_SET_VALUE(specify_end_, ValueBase::TYPE_BOOL);
+ case 5: CHECK_TYPE_AND_SET_VALUE(start_color_, ValueBase::TYPE_COLOR);
+ case 6: CHECK_TYPE_AND_SET_VALUE(end_color_, ValueBase::TYPE_COLOR);
+ }
+ return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Repeat_Gradient::get_link_vfunc(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return gradient_;
+ case 1: return count_;
+ case 2: return width_;
+ case 3: return specify_start_;
+ case 4: return specify_end_;
+ case 5: return start_color_;
+ case 6: return end_color_;
+ default: return 0;
+ }
+}
+
+int
+ValueNode_Repeat_Gradient::link_count()const
+{
+ return 7;
+}
+
+String
+ValueNode_Repeat_Gradient::link_local_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return _("Gradient");
+ case 1: return _("Count");
+ case 2: return _("Width");
+ case 3: return _("Specify Start");
+ case 4: return _("Specify End");
+ case 5: return _("Start Color");
+ case 6: return _("End Color");
+ default: return String();
+ }
+}
+
+String
+ValueNode_Repeat_Gradient::link_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return "gradient";
+ case 1: return "count";
+ case 2: return "width";
+ case 3: return "specify_start";
+ case 4: return "specify_end";
+ case 5: return "start_color";
+ case 6: return "end_color";
+ default: return String();
+ }
+}
+
+int
+ValueNode_Repeat_Gradient::get_link_index_from_name(const String &name)const
+{
+ if(name=="gradient") return 0;
+ if(name=="count") return 1;
+ if(name=="width") return 2;
+ if(name=="specify_start") return 3;
+ if(name=="specify_end") return 4;
+ if(name=="start_color") return 5;
+ if(name=="end_color") return 6;
+ throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_Repeat_Gradient::get_name()const
+{
+ return "repeat_gradient";
+}
+
+String
+ValueNode_Repeat_Gradient::get_local_name()const
+{
+ return _("Repeat Gradient");
+}
+
+bool
+ValueNode_Repeat_Gradient::check_type(ValueBase::Type type)
+{
+ return type==ValueBase::TYPE_GRADIENT;
+}
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