X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Fsrc%2Fsynfig%2Fvaluenode_blinecalcwidth.cpp;fp=synfig-core%2Fsrc%2Fsynfig%2Fvaluenode_blinecalcwidth.cpp;h=4d8ee0e3b5c0dad2d69c23c2755fbb2d6c4ffe81;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/src/synfig/valuenode_blinecalcwidth.cpp b/synfig-core/src/synfig/valuenode_blinecalcwidth.cpp
new file mode 100644
index 0000000..4d8ee0e
--- /dev/null
+++ b/synfig-core/src/synfig/valuenode_blinecalcwidth.cpp
@@ -0,0 +1,230 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file valuenode_blinecalcwidth.cpp
+**	\brief Implementation of the "BLine Width" 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 "valuenode_blinecalcwidth.h"
+#include "valuenode_bline.h"
+#include "valuenode_const.h"
+#include "valuenode_composite.h"
+#include "general.h"
+#include "exception.h"
+#include <ETL/hermite>
+
+#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 ======================================================= */
+
+ValueNode_BLineCalcWidth::ValueNode_BLineCalcWidth(const ValueBase::Type &x):
+	LinkableValueNode(x)
+{
+	if(x!=ValueBase::TYPE_REAL)
+		throw Exception::BadType(ValueBase::type_local_name(x));
+
+	ValueNode_BLine* value_node(new ValueNode_BLine());
+	set_link("bline",value_node);
+	set_link("loop",ValueNode_Const::create(bool(false)));
+	set_link("amount",ValueNode_Const::create(Real(0.5)));
+	set_link("scale",ValueNode_Const::create(Real(1.0)));
+}
+
+LinkableValueNode*
+ValueNode_BLineCalcWidth::create_new()const
+{
+	return new ValueNode_BLineCalcWidth(ValueBase::TYPE_REAL);
+}
+
+ValueNode_BLineCalcWidth*
+ValueNode_BLineCalcWidth::create(const ValueBase &x)
+{
+	return new ValueNode_BLineCalcWidth(x.get_type());
+}
+
+ValueNode_BLineCalcWidth::~ValueNode_BLineCalcWidth()
+{
+	unlink_all();
+}
+
+ValueBase
+ValueNode_BLineCalcWidth::operator()(Time t, Real amount)const
+{
+	if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+		printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+	const std::vector<ValueBase> bline((*bline_)(t).get_list());
+	handle<ValueNode_BLine> bline_value_node(bline_);
+	const bool looped(bline_value_node->get_loop());
+	int size = bline.size(), from_vertex;
+	bool loop((*loop_)(t).get(bool()));
+	Real scale((*scale_)(t).get(Real()));
+	BLinePoint blinepoint0, blinepoint1;
+
+	if (!looped) size--;
+	if (size < 1) return Real();
+	if (loop)
+	{
+		amount = amount - int(amount);
+		if (amount < 0) amount++;
+	}
+	else
+	{
+		if (amount < 0) amount = 0;
+		if (amount > 1) amount = 1;
+	}
+
+	vector<ValueBase>::const_iterator iter, next(bline.begin());
+
+	iter = looped ? --bline.end() : next++;
+	amount = amount * size;
+	from_vertex = int(amount);
+	if (from_vertex > size-1) from_vertex = size-1;
+	blinepoint0 = from_vertex ? *(next+from_vertex-1) : *iter;
+	blinepoint1 = *(next+from_vertex);
+
+	float width0 = blinepoint0.get_width();
+	float width1 = blinepoint1.get_width();
+
+	return Real((width0 + (amount-from_vertex) * (width1-width0)) * scale);
+}
+
+ValueBase
+ValueNode_BLineCalcWidth::operator()(Time t)const
+{
+	Real amount((*amount_)(t).get(Real()));
+	return (*this)(t, amount);
+}
+
+String
+ValueNode_BLineCalcWidth::get_name()const
+{
+	return "blinecalcwidth";
+}
+
+String
+ValueNode_BLineCalcWidth::get_local_name()const
+{
+	return _("BLine Width");
+}
+
+bool
+ValueNode_BLineCalcWidth::set_link_vfunc(int i,ValueNode::Handle value)
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+	case 0: CHECK_TYPE_AND_SET_VALUE(bline_,  ValueBase::TYPE_LIST);
+	case 1: CHECK_TYPE_AND_SET_VALUE(loop_,   ValueBase::TYPE_BOOL);
+	case 2: CHECK_TYPE_AND_SET_VALUE(amount_, ValueBase::TYPE_REAL);
+	case 3: CHECK_TYPE_AND_SET_VALUE(scale_,  ValueBase::TYPE_REAL);
+	}
+	return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_BLineCalcWidth::get_link_vfunc(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+		case 0: return bline_;
+		case 1: return loop_;
+		case 2: return amount_;
+		case 3: return scale_;
+	}
+
+	return 0;
+}
+
+int
+ValueNode_BLineCalcWidth::link_count()const
+{
+	return 4;
+}
+
+String
+ValueNode_BLineCalcWidth::link_name(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+		case 0: return "bline";
+		case 1: return "loop";
+		case 2: return "amount";
+		case 3: return "scale";
+	}
+	return String();
+}
+
+String
+ValueNode_BLineCalcWidth::link_local_name(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+		case 0: return _("BLine");
+		case 1: return _("Loop");
+		case 2: return _("Amount");
+		case 3: return _("Scale");
+	}
+	return String();
+}
+
+int
+ValueNode_BLineCalcWidth::get_link_index_from_name(const String &name)const
+{
+	if(name=="bline")  return 0;
+	if(name=="loop")   return 1;
+	if(name=="amount") return 2;
+	if(name=="scale")  return 3;
+	throw Exception::BadLinkName(name);
+}
+
+bool
+ValueNode_BLineCalcWidth::check_type(ValueBase::Type type)
+{
+	return type==ValueBase::TYPE_REAL;
+}