X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Fsrc%2Fsynfig%2Fvaluenode_repeat_gradient.cpp;fp=synfig-core%2Fsrc%2Fsynfig%2Fvaluenode_repeat_gradient.cpp;h=c9ad14ace50b285bac82547897ec59080ec023e7;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/src/synfig/valuenode_repeat_gradient.cpp b/synfig-core/src/synfig/valuenode_repeat_gradient.cpp
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+++ b/synfig-core/src/synfig/valuenode_repeat_gradient.cpp
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+/* === 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;
+}