/* === S Y N F I G ========================================================= */
/*! \file valuenode_scale.cpp
-** \brief Template File
+** \brief Implementation of the "Scale" valuenode conversion.
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007 Chris Moore
+** 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
#include "valuenode_scale.h"
#include "valuenode_const.h"
#include <stdexcept>
-#include <cassert>
#include "color.h"
#include "vector.h"
#include "time.h"
#include "angle.h"
+#include <ETL/misc>
#endif
ValueNode_Scale::ValueNode_Scale(const ValueBase &value):
LinkableValueNode(value.get_type())
{
- set_scalar(1.0);
+ set_link("scalar",ValueNode::Handle(ValueNode_Const::create(Real(1.0))));
ValueBase::Type id(value.get_type());
switch(id)
break;
default:
assert(0);
- throw runtime_error("synfig::ValueNode_Scale:Bad type "+ValueBase::type_name(value.get_type()));
+ throw runtime_error(get_local_name()+_(":Bad type ")+ValueBase::type_local_name(id));
}
assert(value_node);
- assert(get_value_node()->get_type()==id);
+ assert(value_node->get_type()==id);
assert(get_type()==id);
}
unlink_all();
}
-void
-ValueNode_Scale::set_scalar(Real x)
-{
- set_link("scalar",ValueNode::Handle(ValueNode_Const::create(x)));
-}
-
-bool
-ValueNode_Scale::set_scalar(const ValueNode::Handle &x)
-{
- if(!x
- || x->get_type()!=ValueBase::TYPE_REAL
- && !PlaceholderValueNode::Handle::cast_dynamic(x)
- )
- return false;
- scalar=x;
- return true;
-}
-
-ValueNode::Handle
-ValueNode_Scale::get_scalar()const
-{
- return scalar;
-}
-
-bool
-ValueNode_Scale::set_value_node(const ValueNode::Handle &x)
-{
- assert(get_type());
-
- // if this isn't a proper value
- if(!x ||
- // or we don't have a type, and this value isn't one of the types we accept
- (get_type()==ValueBase::TYPE_NIL && !check_type(x->get_type())) ||
- // or we have a type and this value is a different type and (placeholder?)
- (get_type()!=ValueBase::TYPE_NIL && x->get_type()!=get_type() && !PlaceholderValueNode::Handle::cast_dynamic(x)))
- // then fail to set the value
- return false;
-
- value_node=x;
-
- return true;
-}
-
-ValueNode::Handle
-ValueNode_Scale::get_value_node()const
-{
- return value_node;
-}
-
-
synfig::ValueBase
synfig::ValueNode_Scale::operator()(Time t)const
{
+ if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+ printf("%s:%d operator()\n", __FILE__, __LINE__);
+
if(!value_node || !scalar)
throw runtime_error(strprintf("ValueNode_Scale: %s",_("One or both of my parameters aren't set!")));
else if(get_type()==ValueBase::TYPE_ANGLE)
return ret;
}
else if(get_type()==ValueBase::TYPE_INTEGER)
- {
- Real ret = (*value_node)(t).get(int())*(*scalar)(t).get(Real()) + 0.5f;
- if (ret < 0) return static_cast<int>(ret-1);
- return static_cast<int>(ret);
- }
+ return round_to_int((*value_node)(t).get(int())*(*scalar)(t).get(Real()));
else if(get_type()==ValueBase::TYPE_REAL)
return (*value_node)(t).get(Real())*(*scalar)(t).get(Real());
else if(get_type()==ValueBase::TYPE_TIME)
return ValueBase();
}
-
-bool
-ValueNode_Scale::set_link_vfunc(int i,ValueNode::Handle x)
+synfig::ValueBase
+synfig::ValueNode_Scale::get_inverse(Time t, const synfig::Vector &target_value) const
{
- if(!(i==0 || i==1))
- return false;
+ Real scalar_value((*scalar)(t).get(Real()));
+ if(scalar_value==0)
+ throw runtime_error(strprintf("ValueNode_Scale: %s",_("Attempting to get the inverse of a non invertible Valuenode")));
+ else
+ {
+ switch (get_type())
+ {
+ case ValueBase::TYPE_REAL:
+ return target_value.mag() / scalar_value;
+ case ValueBase::TYPE_ANGLE:
+ return Angle::tan(target_value[1] / scalar_value ,target_value[0] / scalar_value);
+ default:
+ return target_value / scalar_value;
+ }
+ }
+ return ValueBase();
+}
- if(i==0 && !set_value_node(x))
- return false;
+synfig::ValueBase
+synfig::ValueNode_Scale::get_inverse(Time t, const synfig::Angle &target_value) const
+{
+ Real scalar_value((*scalar)(t).get(Real()));
+ if(scalar_value==0)
+ throw runtime_error(strprintf("ValueNode_Scale: %s",_("Attempting to get the inverse of a non invertible Valuenode")));
else
- if(i==1 && !set_scalar(x))
- return false;
+ {
+ switch (get_type())
+ {
+ default:
+ return (*value_node)(t).get(Angle()) + target_value / scalar_value;
+ }
+ }
+ return ValueBase();
+}
- signal_child_changed()(i);signal_value_changed()();
+bool
+synfig::ValueNode_Scale::is_invertible(Time t) const
+{
+ Real scalar_value((*scalar)(t).get(Real()));
+ return (!scalar_value==0);
+}
+
+bool
+ValueNode_Scale::set_link_vfunc(int i,ValueNode::Handle value)
+{
+ assert(i>=0 && i<link_count());
- return true;
+ switch(i)
+ {
+ case 0: CHECK_TYPE_AND_SET_VALUE(value_node, get_type());
+ case 1: CHECK_TYPE_AND_SET_VALUE(scalar, ValueBase::TYPE_REAL);
+ }
+ return false;
}
ValueNode::LooseHandle
ValueNode_Scale::get_link_vfunc(int i)const
{
- assert(i==0 || i==1);
+ assert(i>=0 && i<link_count());
+
if(i==0)
return value_node;
else if(i==1)
String
ValueNode_Scale::link_local_name(int i)const
{
- assert(i==0 || i==1);
+ assert(i>=0 && i<link_count());
+
if(i==0)
return _("Link");
else if(i==1)
String
ValueNode_Scale::link_name(int i)const
{
- assert(i==0 || i==1);
+ assert(i>=0 && i<link_count());
+
if(i==0)
return "link";
else if(i==1)
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