Release synfig_0_61_05
[synfig.git] / synfig-core / tags / synfig_0_61_05 / synfig-core / src / synfig / valuenode_subtract.cpp
diff --git a/synfig-core/tags/synfig_0_61_05/synfig-core/src/synfig/valuenode_subtract.cpp b/synfig-core/tags/synfig_0_61_05/synfig-core/src/synfig/valuenode_subtract.cpp
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+/* === 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;
+}