-/* === S Y N F I G ========================================================= */
-/*! \file valuedescsmartlink.cpp
-** \brief Template File
-**
-** $Id$
-**
-** \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 "valuedescsmartlink.h"
-
-#include <synfigapp/canvasinterface.h>
-#include <synfig/valuenode_const.h>
-#include <synfig/valuenode_scale.h>
-
-#include <synfigapp/general.h>
-
-#endif
-
-using namespace std;
-using namespace etl;
-using namespace synfig;
-using namespace synfigapp;
-using namespace Action;
-
-/* === M A C R O S ========================================================= */
-
-ACTION_INIT(Action::ValueDescSmartLink);
-ACTION_SET_NAME(Action::ValueDescSmartLink,"ValueDescSmartLink");
-ACTION_SET_LOCAL_NAME(Action::ValueDescSmartLink,N_("Smart Link"));
-ACTION_SET_TASK(Action::ValueDescSmartLink,"connect");
-ACTION_SET_CATEGORY(Action::ValueDescSmartLink,Action::CATEGORY_HIDDEN);
-ACTION_SET_PRIORITY(Action::ValueDescSmartLink,0);
-ACTION_SET_VERSION(Action::ValueDescSmartLink,"0.0");
-ACTION_SET_CVS_ID(Action::ValueDescSmartLink,"$Id$");
-
-/* === G L O B A L S ======================================================= */
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-Action::ValueDescSmartLink::ValueDescSmartLink():
-poison(false), status_level(0), link_scalar(0.0)
-{
-}
-
-Action::ParamVocab
-Action::ValueDescSmartLink::get_param_vocab()
-{
- ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
-
- ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
- .set_local_name(_("ValueDesc to smart link"))
- .set_requires_multiple()
- );
-
- return ret;
-}
-
-bool
-Action::ValueDescSmartLink::is_candidate(const ParamList &x)
-{
- // If action parameters are not Value Desc
- if(!candidate_check(get_param_vocab(),x))
- return false;
-
- Real current_scalar(1.0);
- bool found_inverse(false);
-
- ParamList::const_iterator iter;
- //Search thru all the Param and pick up the value descriptions
- for(iter=x.begin(); iter!=x.end(); iter++)
- {
- if(iter->first == "value_desc")
- {
- ValueDesc v_desc(iter->second.get_value_desc());
- // if the value description parent is linkable value node, continue
- if(!v_desc.parent_is_linkable_value_node())
- return false;
- // if the link describe to any tangent (index 4 or 5), continue
- if(v_desc.get_index() != 4 && v_desc.get_index() != 5)
- return false;
- synfig::Real iter_scalar=v_desc.get_scalar();
- // Let's compare the sign of scalar of the value node witht the current one
- // and remember if a change of sign is seen.
- if(iter_scalar*current_scalar < 0) // if they have different signs
- {
- found_inverse=true;
- current_scalar=iter_scalar;
- }
- }
- }
- // If we found two inverse tangents then continue
- if(!found_inverse)
- return false;
- // We have reached two or more opposite tangents
- return true;
-}
-
-bool
-Action::ValueDescSmartLink::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(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.get_scalar();
- 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.get_scalar();
- }
- 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.get_scalar();
- }
- 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.get_scalar();
- }
- 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.get_scalar();
- }
- 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.get_scalar();
- }
- 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.get_scalar();
- }
- 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')"),
- ValueBase::type_local_name(value_desc.get_value_type()).c_str(),
- ValueBase::type_local_name(value_desc_list.front().get_value_type()).c_str()));
- return false;
- }
-
- value_desc_list.push_back(value_desc);
-
- return true;
- }
-
- return Action::CanvasSpecific::set_param(name,param);
-}
-
-bool
-Action::ValueDescSmartLink::is_ready()const
-{
- if(poison)
- return true;
- if(value_desc_list.size()<=1)
- return false;
- return Action::CanvasSpecific::is_ready();
-}
-
-void
-Action::ValueDescSmartLink::prepare()
-{
- if(poison)
- throw Error(status_message.c_str());
-
- if(value_desc_list.empty())
- throw Error(Error::TYPE_NOTREADY);
-
- clear();
-
- if(!link_value_node)
- {
- // we should have a value node selected because is_candidate()
- // should have checked it before
- throw Error(Error::TYPE_BUG);
- }
-
- // Check if the selected link value node is already a scale -1.0 Linkable Value Node
- bool link_is_scaled(false);
- if(synfig::ValueNode_Scale::Handle::cast_dynamic(link_value_node))
- {
- synfig::ValueNode_Const::Handle scale_vn(
- synfig::ValueNode_Const::Handle::cast_dynamic(
- synfig::ValueNode_Scale::Handle::cast_dynamic(link_value_node)->get_link(1)
- )
- );
- if(scale_vn)
- if((*scale_vn)(synfig::Time(0))==synfig::ValueBase(Real(-1.0)))
- link_is_scaled=true;
- }
-
- //See what is the tangent selected to convert.
- std::list<ValueDesc>::const_iterator vd_iter;
- for(vd_iter=value_desc_list.begin(); vd_iter!=value_desc_list.end(); vd_iter++)
- {
- // Don't link the selected to itself
- if(vd_iter->get_value_node() == link_value_node)
- continue;
- //Check if the current value node has opposite scalar than the link
- // value node to convert to scale -1.0 before connect.
- // Check also if the link value node is NOT also a scale -1
- if( (vd_iter->get_scalar()*link_scalar<0) && (link_is_scaled==false) )
- {
- //Let's create a Scale Value Node
- synfig::ValueNode::Handle scale_value_node=synfig::LinkableValueNode::create("scale",vd_iter->get_value(time));
- if(!scale_value_node)
- throw Error(Error::TYPE_BUG);
- scale_value_node->set_parent_canvas(get_canvas());
- //Let's connect the new Scale Value Node to the value node
- Action::Handle action1(Action::create("ValueDescConnect"));
- if(!action1)
- throw Error(Error::TYPE_CRITICAL);
- action1->set_param("canvas",get_canvas());
- action1->set_param("canvas_interface",get_canvas_interface());
- action1->set_param("dest",*vd_iter);
- action1->set_param("src",scale_value_node);
- assert(action1->is_ready());
- if(!action1->is_ready())
- throw Error(Error::TYPE_NOTREADY);
- add_action_front(action1);
-
- //Let's Connect the link value node to the scale value node link subparam
- Action::Handle action2(Action::create("ValueNodeLinkConnect"));
- if(!action2)
- throw Error(Error::TYPE_CRITICAL);
-
- action2->set_param("canvas",get_canvas());
- action2->set_param("canvas_interface",get_canvas_interface());
- action2->set_param("parent_value_node",scale_value_node);
- action2->set_param("index",0);
- action2->set_param("value_node",link_value_node);
- assert(action2->is_ready());
- if(!action2->is_ready())
- throw Error(Error::TYPE_NOTREADY);
- add_action_front(action2);
-
- //Let's Set the scale to -1
- Action::Handle action3(Action::create("ValueNodeConstSet"));
- if(!action3)
- throw Error(Error::TYPE_CRITICAL);
-
- action3->set_param("canvas",get_canvas());
- action3->set_param("canvas_interface",get_canvas_interface());
- action3->set_param("value_node",synfig::LinkableValueNode::Handle::cast_dynamic(scale_value_node)->get_link(1));
- action3->set_param("new_value",synfig::ValueBase(Real(-1.0)));
- assert(action3->is_ready());
- if(!action3->is_ready())
- throw Error(Error::TYPE_NOTREADY);
- add_action_front(action3);
- }
- else if((vd_iter->get_scalar()*link_scalar<0) && (link_is_scaled==true) )
- {
- synfig::info("adding action4");
- //Let's connect the link value node -> link to the value node
- // There is not needed conversion to scale of the value node
- // because the link value node is already a scale -1
- Action::Handle action4(Action::create("ValueDescConnect"));
- if(!action4)
- throw Error(Error::TYPE_CRITICAL);
- action4->set_param("canvas",get_canvas());
- action4->set_param("canvas_interface",get_canvas_interface());
- action4->set_param("dest",*vd_iter);
- action4->set_param("src",synfig::ValueNode_Scale::Handle::cast_dynamic(link_value_node)->get_link(0));
- assert(action4->is_ready());
- if(!action4->is_ready())
- throw Error(Error::TYPE_NOTREADY);
- add_action_front(action4);
- }
- else
- {
- //Let's connect the link value node to the value node
- Action::Handle action(Action::create("ValueDescConnect"));
- if(!action)
- throw Error(Error::TYPE_CRITICAL);
- action->set_param("canvas",get_canvas());
- action->set_param("canvas_interface",get_canvas_interface());
- action->set_param("dest",*vd_iter);
- action->set_param("src",link_value_node);
- assert(action->is_ready());
- if(!action->is_ready())
- throw Error(Error::TYPE_NOTREADY);
- add_action_front(action);
- }
- }
- synfig::info("http://synfig.org/Linking#Tier_%d : %s", status_level, status_message.c_str());
-}
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