--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_subtract.cpp
+** \brief Template File
+**
+** $Id: valuenode_subtract.cpp,v 1.1.1.1 2005/01/04 01:23:15 darco Exp $
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+** 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_subtract.h"
+#include "valuenode_const.h"
+#include <stdexcept>
+#include "color.h"
+#include "vector.h"
+#include "angle.h"
+#include "real.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_Subtract::ValueNode_Subtract():LinkableValueNode(synfig::ValueBase::TYPE_NIL)
+{
+ set_scalar(1.0);
+}
+
+LinkableValueNode*
+ValueNode_Subtract::create_new()const
+{
+ return new ValueNode_Subtract();
+}
+
+ValueNode_Subtract*
+ValueNode_Subtract::create(const ValueBase& x)
+{
+ ValueBase::Type id(x.get_type());
+
+ ValueNode_Subtract* value_node=new ValueNode_Subtract();
+ switch(id)
+ {
+ case ValueBase::TYPE_NIL:
+ return value_node;
+ case ValueBase::TYPE_VECTOR:
+ case ValueBase::TYPE_REAL:
+ case ValueBase::TYPE_INTEGER:
+ case ValueBase::TYPE_ANGLE:
+ value_node->set_link("rhs",ValueNode_Const::create(ValueBase(id)));
+ value_node->set_link("lhs",ValueNode_Const::create(ValueBase(id)));
+ assert(value_node->get_rhs()->get_type()==id);
+ assert(value_node->get_lhs()->get_type()==id);
+ break;
+ default:
+ assert(0);
+ throw runtime_error("synfig::ValueNode_Subtract:Bad type "+ValueBase::type_name(id));
+ }
+ assert(value_node->get_type()==id);
+
+ return value_node;
+}
+
+synfig::ValueNode_Subtract::~ValueNode_Subtract()
+{
+ unlink_all();
+}
+
+void
+ValueNode_Subtract::set_scalar(Real x)
+{
+ set_link("scalar",ValueNode_Const::create(x));
+}
+
+bool
+synfig::ValueNode_Subtract::set_scalar(ValueNode::Handle x)
+{
+ if(x->get_type()!=ValueBase::TYPE_REAL&& !PlaceholderValueNode::Handle::cast_dynamic(x))
+ return false;
+ scalar=x;
+ return true;
+}
+
+bool
+synfig::ValueNode_Subtract::set_lhs(ValueNode::Handle a)
+{
+ ref_a=a;
+
+ if(PlaceholderValueNode::Handle::cast_dynamic(a))
+ return true;
+
+ if(!ref_a || !ref_b)
+ set_type(ValueBase::TYPE_NIL);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_VECTOR && ref_a->get_type()==ValueBase::TYPE_VECTOR)
+ set_type(ValueBase::TYPE_VECTOR);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_REAL && ref_a->get_type()==ValueBase::TYPE_REAL)
+ set_type(ValueBase::TYPE_REAL);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_INTEGER && ref_a->get_type()==ValueBase::TYPE_INTEGER)
+ set_type(ValueBase::TYPE_INTEGER);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_ANGLE && ref_a->get_type()==ValueBase::TYPE_ANGLE)
+ set_type(ValueBase::TYPE_ANGLE);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_COLOR && ref_a->get_type()==ValueBase::TYPE_COLOR)
+ set_type(ValueBase::TYPE_COLOR);
+ else
+ {
+ synfig::warning(get_id()+":(set_a):"+strprintf(_("Types seem to be off for ValueNodes %s and %s"),ref_a->get_id().c_str(),ref_b->get_id().c_str()));
+ set_type(ValueBase::TYPE_NIL);
+ }
+
+ return true;
+}
+
+bool
+synfig::ValueNode_Subtract::set_rhs(ValueNode::Handle b)
+{
+ ref_b=b;
+
+ if(PlaceholderValueNode::Handle::cast_dynamic(b))
+ return true;
+
+ if(!ref_a || !ref_b)
+ set_type(ValueBase::TYPE_NIL);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_VECTOR && ref_a->get_type()==ValueBase::TYPE_VECTOR)
+ set_type(ValueBase::TYPE_VECTOR);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_REAL && ref_a->get_type()==ValueBase::TYPE_REAL)
+ set_type(ValueBase::TYPE_REAL);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_INTEGER && ref_a->get_type()==ValueBase::TYPE_INTEGER)
+ set_type(ValueBase::TYPE_INTEGER);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_ANGLE && ref_a->get_type()==ValueBase::TYPE_ANGLE)
+ set_type(ValueBase::TYPE_ANGLE);
+ else
+ if(ref_a->get_type()==ValueBase::TYPE_COLOR && ref_a->get_type()==ValueBase::TYPE_COLOR)
+ set_type(ValueBase::TYPE_COLOR);
+ else
+ {
+ synfig::warning(get_id()+":(set_b):"+strprintf(_("Types seem to be off for ValueNodes %s and %s"),ref_a->get_id().c_str(),ref_b->get_id().c_str()));
+ set_type(ValueBase::TYPE_NIL);
+ }
+
+ return true;
+}
+
+synfig::ValueBase
+synfig::ValueNode_Subtract::operator()(Time t)const
+{
+ if(!ref_a || !ref_b)
+ throw runtime_error(strprintf("ValueNode_Subtract: %s",_("One or both of my parameters aren't set!")));
+ else
+ if(get_type()==ValueBase::TYPE_VECTOR)
+ return ((*ref_a)(t).get(Vector())-(*ref_b)(t).get(Vector()))*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_REAL)
+ return ((*ref_a)(t).get(Vector::value_type())-(*ref_b)(t).get(Vector::value_type()))*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_INTEGER)
+ return ((*ref_a)(t).get(int())-(*ref_b)(t).get(int()))*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_ANGLE)
+ return ((*ref_a)(t).get(Angle())-(*ref_b)(t).get(Angle()))*(*scalar)(t).get(Real());
+ else
+ if(get_type()==ValueBase::TYPE_COLOR)
+ return ((*ref_a)(t).get(Color())-(*ref_b)(t).get(Color()))*(*scalar)(t).get(Real());
+
+ synfig::error(get_id()+':'+strprintf(_("Cannot subtract types of %s and %s"),ValueBase::type_name(ref_a->get_type()).c_str(),ValueBase::type_name(ref_b->get_type()).c_str()));
+ return ValueBase();
+}
+
+bool
+ValueNode_Subtract::set_link_vfunc(int i,ValueNode::Handle x)
+{
+ assert(i>=0 && i<3);
+ switch(i)
+ {
+ case 0:
+ if(set_lhs(x)) { signal_child_changed()(i);signal_value_changed()(); return true; }
+ else { return false; }
+ case 1:
+ if(set_rhs(x)) { signal_child_changed()(i);signal_value_changed()(); return true; }
+ else { return false; }
+ case 2:
+ scalar=x;
+ signal_child_changed()(i);signal_value_changed()();
+ return true;
+ }
+
+ return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Subtract::get_link_vfunc(int i)const
+{
+ assert(i>=0 && i<3);
+ switch(i)
+ {
+ case 0:
+ return ref_a;
+ case 1:
+ return ref_b;
+ case 2:
+ return scalar;
+ }
+ return 0;
+}
+
+int
+ValueNode_Subtract::link_count()const
+{
+ return 3;
+}
+
+String
+ValueNode_Subtract::link_local_name(int i)const
+{
+ assert(i>=0 && i<3);
+ switch(i)
+ {
+ case 0:
+ return _("LHS");
+ case 1:
+ return _("RHS");
+ case 2:
+ return _("Scalar");
+ }
+ return String();
+}
+
+String
+ValueNode_Subtract::link_name(int i)const
+{
+ assert(i>=0 && i<3);
+ switch(i)
+ {
+ case 0:
+ return "lhs";
+ case 1:
+ return "rhs";
+ case 2:
+ return "scalar";
+ }
+ return String();
+}
+
+int
+ValueNode_Subtract::get_link_index_from_name(const String &name)const
+{
+ if(name=="lhs")
+ return 0;
+ if(name=="rhs")
+ return 1;
+ if(name=="scalar")
+ return 2;
+ throw Exception::BadLinkName(name);
+}
+
+String
+ValueNode_Subtract::get_name()const
+{
+ return "subtract";
+}
+
+String
+ValueNode_Subtract::get_local_name()const
+{
+ return _("Subtract");
+}
+
+bool
+ValueNode_Subtract::check_type(ValueBase::Type type)
+{
+ return type==ValueBase::TYPE_VECTOR
+ || type==ValueBase::TYPE_REAL
+ || type==ValueBase::TYPE_INTEGER
+ || type==ValueBase::TYPE_COLOR
+ || type==ValueBase::TYPE_ANGLE;
+}