Stable Tag: Copying everything over
[synfig.git] / synfig-studio / tags / stable / src / synfigapp / actions / waypointset.cpp
diff --git a/synfig-studio/tags/stable/src/synfigapp/actions/waypointset.cpp b/synfig-studio/tags/stable/src/synfigapp/actions/waypointset.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file waypointset.cpp
+**     \brief Template File
+**
+**     $Id$
+**
+**     \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 "waypointset.h"
+#include <synfigapp/canvasinterface.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::WaypointSet);
+ACTION_SET_NAME(Action::WaypointSet,"waypoint_set");
+ACTION_SET_LOCAL_NAME(Action::WaypointSet,N_("Set Waypoint"));
+ACTION_SET_TASK(Action::WaypointSet,"set");
+ACTION_SET_CATEGORY(Action::WaypointSet,Action::CATEGORY_WAYPOINT);
+ACTION_SET_PRIORITY(Action::WaypointSet,0);
+ACTION_SET_VERSION(Action::WaypointSet,"0.0");
+ACTION_SET_CVS_ID(Action::WaypointSet,"$Id$");
+
+/* === 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::WaypointSet::WaypointSet()
+{
+       set_dirty(true);
+}
+
+Action::ParamVocab
+Action::WaypointSet::get_param_vocab()
+{
+       ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
+
+       ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)
+               .set_local_name(_("Destination ValueNode (Animated)"))
+       );
+
+       ret.push_back(ParamDesc("waypoint",Param::TYPE_WAYPOINT)
+               .set_local_name(_("Waypoint"))
+               .set_desc(_("Waypoint to be changed"))
+               .set_supports_multiple()
+       );
+
+       return ret;
+}
+
+bool
+Action::WaypointSet::is_candidate(const ParamList &x)
+{
+       return candidate_check(get_param_vocab(),x);
+}
+
+bool
+Action::WaypointSet::set_param(const synfig::String& name, const Action::Param &param)
+{
+       if(name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
+       {
+               value_node=ValueNode_Animated::Handle::cast_dynamic(param.get_value_node());
+
+               return static_cast<bool>(value_node);
+       }
+       if(name=="waypoint" && param.get_type()==Param::TYPE_WAYPOINT)
+       {
+               //NOTE: at the moment there is no error checking for multiple sets!!!
+               waypoints.push_back(param.get_waypoint());
+
+               return true;
+       }
+
+       return Action::CanvasSpecific::set_param(name,param);
+}
+
+bool
+Action::WaypointSet::is_ready()const
+{
+       if(!value_node || waypoints.empty())
+               return false;
+       return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::WaypointSet::perform()
+{
+       WaypointList::iterator iter;
+
+#if 1
+       vector<WaypointList::iterator>  iters;
+       vector<Waypoint>::iterator i = waypoints.begin(), end = waypoints.end();
+
+       for(; i != end; ++i)
+       {
+               try { iters.push_back(value_node->find(*i)); }
+               catch(synfig::Exception::NotFound)
+               {
+                       throw Error(_("Unable to find waypoint"));
+               }
+       }
+
+       //check to see which valuenodes are going to override because of the time...
+       ValueNode_Animated::findresult timeiter;
+
+       for(i = waypoints.begin(); i != end; ++i)
+       {
+               timeiter = value_node->find_time(i->get_time());
+
+               bool candelete = timeiter.second;
+
+               //we only want to track overwrites (not waypoints that are also being modified)
+               if(candelete)
+               {
+                       for(vector<WaypointList::iterator>::iterator ii = iters.begin(); ii != iters.end(); ++ii)
+                       {
+                               if(timeiter.first == *ii)
+                               {
+                                       candelete = false;
+                                       break;
+                               }
+                       }
+               }
+
+               //if we can still delete it after checking, record it, and then remove them all later
+               if(candelete)
+               {
+                       Waypoint w = *timeiter.first;
+                       overwritten_waypoints.push_back(w);
+               }
+       }
+
+       //overwrite all the valuenodes we're supposed to set
+       {
+               i = waypoints.begin();
+               for(vector<WaypointList::iterator>::iterator ii = iters.begin(); ii != iters.end() && i != end; ++ii, ++i)
+               {
+                       old_waypoints.push_back(**ii);
+                       **ii = *i; //set the point to the corresponding point in the normal waypoint list
+               }
+       }
+
+       //remove all the points we're supposed to be overwriting
+       {
+               vector<Waypoint>::iterator      oi = overwritten_waypoints.begin(),
+                                                                       oend = overwritten_waypoints.end();
+               for(; oi != oend; ++oi)
+               {
+                       value_node->erase(*oi);
+               }
+       }
+
+#else
+       try { iter=value_node->find(waypoint); }
+       catch(synfig::Exception::NotFound)
+       {
+               throw Error(_("Unable to find waypoint"));
+       }
+
+       //find the value at the old time before we replace it
+       ValueNode_Animated::findresult timeiter;
+       timeiter = value_node->find_time(waypoint.get_time());
+
+       //we only want to track overwrites (not inplace modifications)
+       if(timeiter.second && waypoint.get_uid() == timeiter.first->get_uid())
+       {
+               timeiter.second = false;
+       }
+
+       //copy and overwrite
+       old_waypoint=*iter;
+       *iter=waypoint;
+
+       //if we've found a unique one then we need to erase it, but store it first
+       if(timeiter.second)
+       {
+               time_overwrite = true;
+               overwritten_wp = *timeiter.first;
+
+               value_node->erase(overwritten_wp);
+       }
+#endif
+
+       // Signal that a valuenode has been changed
+       value_node->changed();
+}
+
+void
+Action::WaypointSet::undo()
+{
+       WaypointList::iterator iter;
+
+#if 1
+       vector<Waypoint>::iterator i = old_waypoints.begin(), end = old_waypoints.end();
+
+       for(; i != end; ++i)
+       {
+               try { iter = value_node->find(*i); }
+               catch(synfig::Exception::NotFound)
+               {
+                       throw Error(_("Unable to find waypoint"));
+               }
+
+               //overwrite with old one
+               *iter = *i;
+       }
+
+       //add back in all the points that we removed before...
+       {
+               vector<Waypoint>::iterator      oi = overwritten_waypoints.begin(),
+                                                                       oend = overwritten_waypoints.end();
+               for(; oi != oend; ++oi)
+               {
+                       value_node->add(*oi);
+               }
+       }
+
+#else
+       try { iter=value_node->find(old_waypoint); }
+       catch(synfig::Exception::NotFound)
+       {
+               throw Error(_("Unable to find waypoint"));
+       }
+
+       *iter=old_waypoint;
+
+       if(time_overwrite)
+       {
+               value_node->add(overwritten_wp);
+       }
+#endif
+
+       // Signal that a valuenode has been changed
+       value_node->changed();
+}