bool
Action::ValueDescLink::set_param(const synfig::String& name, const Action::Param ¶m)
{
if(name=="time" && param.get_type()==Param::TYPE_TIME)
{
time=param.get_time();
return true;
}
// don't bother looking for the best value to use if there's already been an error
if (poison==true) return false;
if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
{
ValueDesc value_desc(param.get_value_desc());
// If we are handling a Composite WidthPoint then use its position as param
if(value_desc.is_value_node() && value_desc.parent_is_linkable_value_node())
{
synfig::ValueNode_Composite::Handle compo(synfig::ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()));
if(compo)
{
String param_name;
if (value_desc.parent_is_value_desc() && !value_desc.get_sub_name().empty())
{
LinkableValueNode::Vocab vocab = compo->get_children_vocab();
for(LinkableValueNode::Vocab::const_iterator i = vocab.begin(); i != vocab.end(); ++i)
if (i->get_name() == value_desc.get_sub_name())
param_name = value_desc.get_sub_name();
}
//! Test used for with point handle
if (param_name.empty() && compo->get_type() == type_width_point)
param_name = "position";
if (param_name.empty() && compo->get_type() == type_bline_point)
param_name = "point";
if ( compo->get_type() == type_bline_point
&& param_name == "t2"
&& (*compo)(time).get(BLinePoint()).get_merge_tangent_both())
{
param_name = "t1";
}
if (!param_name.empty())
{
synfigapp::Action::Param param(synfigapp::ValueDesc(compo, compo->get_link_index_from_name(param_name)));
return set_param("value_desc", param);
}
}
}
if(value_desc.is_value_node() && value_desc.get_value_node()->is_exported())
{
if(link_value_node==value_desc.get_value_node())
return true;
if(link_value_node && link_value_node->is_exported())
{
poison=true;
status_message = (_("Cannot link two different exported values ('") +
value_desc.get_value_node()->get_id() + _("' and '") +
link_value_node->get_id()) + _("')");
return false;
}
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
status_message = _("Used exported ValueNode ('") + link_value_node->get_id() + _("').");
}
else if(value_desc.is_value_node())
{
if(!link_value_node)
{
status_level = 1;
status_message = _("Using the only available ValueNode.");
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
}
else if(link_value_node->is_exported())
{
// we've already seen an exported value, so use that rather than the current value
}
// Use the one that is referenced more
else if(link_value_node->rcount()!=value_desc.get_value_node()->rcount())
{
if(link_value_node->rcount()<value_desc.get_value_node()->rcount())
{
status_level = 2;
status_message = _("Using the most referenced ValueNode.");
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
}
else if (status_level <= 2)
{
status_level = 2;
status_message = _("Using the most referenced ValueNode.");
}
}
// If the current link value node is a constant and
// this one isn't, then give preference to the exotic
else if(ValueNode_Const::Handle::cast_dynamic(link_value_node) && !ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node()))
{
status_level = 3;
status_message = _("There's a tie for most referenced; using the animated ValueNode.");
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
}
else if(ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node()) && !ValueNode_Const::Handle::cast_dynamic(link_value_node))
{
if (status_level <= 3)
{
status_level = 3;
status_message = _("There's a tie for most referenced; using the animated ValueNode.");
}
}
// If both are animated, and this one has more waypoints, then use the one with more waypoints
else if(ValueNode_Animated::Handle::cast_dynamic(link_value_node) &&
ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node()) &&
ValueNode_Animated::Handle::cast_dynamic(link_value_node)->waypoint_list().size() !=
ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())->waypoint_list().size())
{
if (ValueNode_Animated::Handle::cast_dynamic(link_value_node)->waypoint_list().size() <
ValueNode_Animated::Handle::cast_dynamic(value_desc.get_value_node())->waypoint_list().size())
{
status_level = 4;
status_message = _("There's a tie for most referenced, and both are animated; using the one with the most waypoints.");
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
}
else if (status_level <= 4)
{
status_level = 4;
status_message = _("There's a tie for most referenced, and both are animated; using the one with the most waypoints.");
}
}
// If both are Linkable Value Nodes and has waypoint in its children, use the one with more waypoints
else if(LinkableValueNode::Handle::cast_dynamic(link_value_node) &&
LinkableValueNode::Handle::cast_dynamic(value_desc.get_value_node()) &&
LinkableValueNode::Handle::cast_dynamic(link_value_node)->get_times().size() !=
LinkableValueNode::Handle::cast_dynamic(value_desc.get_value_node())->get_times().size())
{
if(LinkableValueNode::Handle::cast_dynamic(link_value_node)->get_times().size() <
LinkableValueNode::Handle::cast_dynamic(value_desc.get_value_node())->get_times().size())
{
status_level = 4;
status_message = _("There's a tie for most referenced, and both are linkable value node animated; using the one with the most waypoints.");
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
}
else if (status_level <= 4)
{
status_level = 4;
status_message = _("There's a tie for most referenced, and both are linkable value node animated; using the one with the most waypoints.");
}
}
// Use the one that was least recently changed
else if(link_value_node->get_time_last_changed()!=value_desc.get_value_node()->get_time_last_changed())
{
if(link_value_node->get_time_last_changed()>value_desc.get_value_node()->get_time_last_changed())
{
status_level = 5;
status_message = _("Everything is tied; using the least recently modified value.");
link_value_node=value_desc.get_value_node();
link_scalar=value_desc.parent_is_linkable_value_node()?value_desc.get_scalar():1.0;
}
else if (status_level <= 5)
{
status_level = 5;
status_message = _("Everything is tied; using the least recently modified value.");
}
}
else
{
status_level = 6;
status_message = _("Absolutely everything is tied.");
}
}
if(value_desc_list.size() && value_desc.get_value_type()!=value_desc_list.front().get_value_type())
{
// Everything must be of the same type
poison=true;
status_message = (strprintf(_("Cannot link two values of different types ('%s' and '%s')"),
value_desc.get_value_type().description.local_name.c_str(),
value_desc_list.front().get_value_type().description.local_name.c_str()));
return false;
}
value_desc_list.push_back(value_desc);
return true;
}
return Action::CanvasSpecific::set_param(name,param);
}
