X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Fsrc%2Fsynfig%2Fvaluenode_timedswap.cpp;fp=synfig-core%2Fsrc%2Fsynfig%2Fvaluenode_timedswap.cpp;h=378535a83e4269eed9ca5fbfc5bdddf9dec05023;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/src/synfig/valuenode_timedswap.cpp b/synfig-core/src/synfig/valuenode_timedswap.cpp
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+++ b/synfig-core/src/synfig/valuenode_timedswap.cpp
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+/* === S Y N F I G ========================================================= */
+/*!	\file valuenode_timedswap.cpp
+**	\brief Implementation of the "Timed Swap" 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_timedswap.h"
+#include "valuenode_const.h"
+#include <stdexcept>
+#include "color.h"
+#include <ETL/misc>
+
+#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_TimedSwap::ValueNode_TimedSwap(const ValueBase &value):
+	LinkableValueNode(value.get_type())
+{
+	switch(get_type())
+	{
+	case ValueBase::TYPE_ANGLE:
+		set_link("before",ValueNode_Const::create(value.get(Angle())));
+		set_link("after",ValueNode_Const::create(value.get(Angle())));
+		break;
+	case ValueBase::TYPE_COLOR:
+		set_link("before",ValueNode_Const::create(value.get(Color())));
+		set_link("after",ValueNode_Const::create(value.get(Color())));
+		break;
+	case ValueBase::TYPE_INTEGER:
+		set_link("before",ValueNode_Const::create(value.get(int())));
+		set_link("after",ValueNode_Const::create(value.get(int())));
+		break;
+	case ValueBase::TYPE_REAL:
+		set_link("before",ValueNode_Const::create(value.get(Real())));
+		set_link("after",ValueNode_Const::create(value.get(Real())));
+		break;
+	case ValueBase::TYPE_TIME:
+		set_link("before",ValueNode_Const::create(value.get(Time())));
+		set_link("after",ValueNode_Const::create(value.get(Time())));
+		break;
+	case ValueBase::TYPE_VECTOR:
+		set_link("before",ValueNode_Const::create(value.get(Vector())));
+		set_link("after",ValueNode_Const::create(value.get(Vector())));
+		break;
+	default:
+		throw Exception::BadType(ValueBase::type_local_name(get_type()));
+	}
+
+	set_link("time",ValueNode_Const::create(Time(2)));
+	set_link("length",ValueNode_Const::create(Time(1)));
+
+	DCAST_HACK_ENABLE();
+}
+
+ValueNode_TimedSwap*
+ValueNode_TimedSwap::create(const ValueBase& x)
+{
+	return new ValueNode_TimedSwap(x);
+}
+
+LinkableValueNode*
+ValueNode_TimedSwap::create_new()const
+{
+	return new ValueNode_TimedSwap(get_type());
+}
+
+synfig::ValueNode_TimedSwap::~ValueNode_TimedSwap()
+{
+	unlink_all();
+}
+
+synfig::ValueBase
+synfig::ValueNode_TimedSwap::operator()(Time t)const
+{
+	if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+		printf("%s:%d operator()\n", __FILE__, __LINE__);
+
+	Time swptime=(*swap_time)(t).get(Time());
+	Time swplength=(*swap_length)(t).get(Time());
+
+	if(t>swptime)
+		return (*after)(t);
+
+	if(t<=swptime && t>swptime-swplength)
+	{
+		Real amount=(swptime-t)/swplength;
+		// if amount==0.0, then we are after
+		// if amount==1.0, then we are before
+
+		switch(get_type())
+		{
+		case ValueBase::TYPE_ANGLE:
+			{
+				Angle a=(*after)(t).get(Angle());
+				Angle b=(*before)(t).get(Angle());
+				return (b-a)*amount+a;
+			}
+		case ValueBase::TYPE_COLOR:
+			{
+				Color a=(*after)(t).get(Color());
+				Color b=(*before)(t).get(Color());
+				// note: Shouldn't this use a straight blend?
+				return (b-a)*amount+a;
+			}
+		case ValueBase::TYPE_INTEGER:
+			{
+				float a=(float)(*after)(t).get(int());
+				float b=(float)(*before)(t).get(int());
+				return round_to_int((b-a)*amount+a);
+			}
+		case ValueBase::TYPE_REAL:
+			{
+				Real a=(*after)(t).get(Real());
+				Real b=(*before)(t).get(Real());
+				return (b-a)*amount+a;
+			}
+		case ValueBase::TYPE_TIME:
+			{
+				Time a=(*after)(t).get(Time());
+				Time b=(*before)(t).get(Time());
+				return (b-a)*amount+a;
+			}
+		case ValueBase::TYPE_VECTOR:
+			{
+				Vector a=(*after)(t).get(Vector());
+				Vector b=(*before)(t).get(Vector());
+				return (b-a)*amount+a;
+			}
+		default:
+			break;
+		}
+	}
+
+	/*! \todo this should interpolate from
+	**	before to after over the period defined
+	**	by swap_length */
+
+	return (*before)(t);
+}
+
+bool
+ValueNode_TimedSwap::set_link_vfunc(int i,ValueNode::Handle value)
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+	case 0: CHECK_TYPE_AND_SET_VALUE(before,      get_type());
+	case 1: CHECK_TYPE_AND_SET_VALUE(after,       get_type());
+	case 2: CHECK_TYPE_AND_SET_VALUE(swap_time,   ValueBase::TYPE_TIME);
+	case 3: CHECK_TYPE_AND_SET_VALUE(swap_length, ValueBase::TYPE_TIME);
+	}
+	return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_TimedSwap::get_link_vfunc(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+	case 0: return before;
+	case 1: return after;
+	case 2: return swap_time;
+	case 3: return swap_length;
+	}
+	return 0;
+}
+
+int
+ValueNode_TimedSwap::link_count()const
+{
+	return 4;
+}
+
+String
+ValueNode_TimedSwap::link_local_name(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+	case 0: return _("Before");
+	case 1: return _("After");
+	case 2: return _("Swap Time");
+	case 3: return _("Swap Duration");
+	default:return String();
+	}
+}
+
+String
+ValueNode_TimedSwap::link_name(int i)const
+{
+	assert(i>=0 && i<link_count());
+
+	switch(i)
+	{
+	case 0: return "before";
+	case 1: return "after";
+	case 2: return "time";
+	case 3: return "length";
+	default:return String();
+	}
+}
+
+int
+ValueNode_TimedSwap::get_link_index_from_name(const String &name)const
+{
+	if(name=="before")	return 0;
+	if(name=="after")	return 1;
+	if(name=="time")	return 2;
+	if(name=="length")	return 3;
+
+	throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_TimedSwap::get_name()const
+{
+	return "timed_swap";
+}
+
+String
+ValueNode_TimedSwap::get_local_name()const
+{
+	return _("Timed Swap");
+}
+
+bool
+ValueNode_TimedSwap::check_type(ValueBase::Type type)
+{
+	return
+		type==ValueBase::TYPE_ANGLE ||
+		type==ValueBase::TYPE_COLOR ||
+		type==ValueBase::TYPE_INTEGER ||
+		type==ValueBase::TYPE_REAL ||
+		type==ValueBase::TYPE_TIME ||
+		type==ValueBase::TYPE_VECTOR;
+}