synfig-studio/tags/synfigstudio_0_61_07_rc1/src/synfigapp/actions/waypointset.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file waypointset.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "waypointset.h"
  33 #include <synfigapp/canvasinterface.h>
  34
  35 #endif
  36
  37 using namespace std;
  38 using namespace etl;
  39 using namespace synfig;
  40 using namespace synfigapp;
  41 using namespace Action;
  42
  43 /* === M A C R O S ========================================================= */
  44
  45 ACTION_INIT(Action::WaypointSet);
  46 ACTION_SET_NAME(Action::WaypointSet,"waypoint_set");
  47 ACTION_SET_LOCAL_NAME(Action::WaypointSet,"Set Waypoint");
  48 ACTION_SET_TASK(Action::WaypointSet,"set");
  49 ACTION_SET_CATEGORY(Action::WaypointSet,Action::CATEGORY_WAYPOINT);
  50 ACTION_SET_PRIORITY(Action::WaypointSet,0);
  51 ACTION_SET_VERSION(Action::WaypointSet,"0.0");
  52 ACTION_SET_CVS_ID(Action::WaypointSet,"$Id$");
  53
  54 /* === G L O B A L S ======================================================= */
  55
  56 /* === P R O C E D U R E S ================================================= */
  57
  58 /* === M E T H O D S ======================================================= */
  59
  60 Action::WaypointSet::WaypointSet()
  61 {
  62         set_dirty(true);
  63 }
  64
  65 Action::ParamVocab
  66 Action::WaypointSet::get_param_vocab()
  67 {
  68         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  69
  70         ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)
  71                 .set_local_name(_("Destination ValueNode (Animated)"))
  72         );
  73
  74         ret.push_back(ParamDesc("waypoint",Param::TYPE_WAYPOINT)
  75                 .set_local_name(_("Waypoint"))
  76                 .set_desc(_("Waypoint to be changed"))
  77                 .set_supports_multiple()
  78         );
  79
  80         return ret;
  81 }
  82
  83 bool
  84 Action::WaypointSet::is_candidate(const ParamList &x)
  85 {
  86         return candidate_check(get_param_vocab(),x);
  87 }
  88
  89 bool
  90 Action::WaypointSet::set_param(const synfig::String& name, const Action::Param &param)
  91 {
  92         if(name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
  93         {
  94                 value_node=ValueNode_Animated::Handle::cast_dynamic(param.get_value_node());
  95
  96                 return static_cast<bool>(value_node);
  97         }
  98         if(name=="waypoint" && param.get_type()==Param::TYPE_WAYPOINT)
  99         {
 100                 //NOTE: at the moment there is no error checking for multiple sets!!!
 101                 waypoints.push_back(param.get_waypoint());
 102
 103                 return true;
 104         }
 105
 106         return Action::CanvasSpecific::set_param(name,param);
 107 }
 108
 109 bool
 110 Action::WaypointSet::is_ready()const
 111 {
 112         if(!value_node || waypoints.empty())
 113                 return false;
 114         return Action::CanvasSpecific::is_ready();
 115 }
 116
 117 void
 118 Action::WaypointSet::perform()
 119 {
 120         WaypointList::iterator iter;
 121
 122 #if 1
 123         vector<WaypointList::iterator>  iters;
 124         vector<Waypoint>::iterator i = waypoints.begin(), end = waypoints.end();
 125
 126         for(; i != end; ++i)
 127         {
 128                 try { iters.push_back(value_node->find(*i)); }
 129                 catch(synfig::Exception::NotFound)
 130                 {
 131                         throw Error(_("Unable to find waypoint"));
 132                 }
 133         }
 134
 135         //check to see which valuenodes are going to override because of the time...
 136         ValueNode_Animated::findresult timeiter;
 137
 138         for(i = waypoints.begin(); i != end; ++i)
 139         {
 140                 timeiter = value_node->find_time(i->get_time());
 141
 142                 bool candelete = timeiter.second;
 143
 144                 //we only want to track overwrites (not waypoints that are also being modified)
 145                 if(candelete)
 146                 {
 147                         for(vector<WaypointList::iterator>::iterator ii = iters.begin(); ii != iters.end(); ++ii)
 148                         {
 149                                 if(timeiter.first == *ii)
 150                                 {
 151                                         candelete = false;
 152                                         break;
 153                                 }
 154                         }
 155                 }
 156
 157                 //if we can still delete it after checking, record it, and then remove them all later
 158                 if(candelete)
 159                 {
 160                         Waypoint w = *timeiter.first;
 161                         overwritten_waypoints.push_back(w);
 162                 }
 163         }
 164
 165         //overwrite all the valuenodes we're supposed to set
 166         {
 167                 i = waypoints.begin();
 168                 for(vector<WaypointList::iterator>::iterator ii = iters.begin(); ii != iters.end() && i != end; ++ii, ++i)
 169                 {
 170                         old_waypoints.push_back(**ii);
 171                         **ii = *i; //set the point to the corresponding point in the normal waypoint list
 172                 }
 173         }
 174
 175         //remove all the points we're supposed to be overwritting
 176         {
 177                 vector<Waypoint>::iterator      oi = overwritten_waypoints.begin(),
 178                                                                         oend = overwritten_waypoints.end();
 179                 for(; oi != oend; ++oi)
 180                 {
 181                         value_node->erase(*oi);
 182                 }
 183         }
 184
 185 #else
 186         try { iter=value_node->find(waypoint); }
 187         catch(synfig::Exception::NotFound)
 188         {
 189                 throw Error(_("Unable to find waypoint"));
 190         }
 191
 192         //find the value at the old time before we replace it
 193         ValueNode_Animated::findresult timeiter;
 194         timeiter = value_node->find_time(waypoint.get_time());
 195
 196         //we only want to track overwrites (not inplace modifications)
 197         if(timeiter.second && waypoint.get_uid() == timeiter.first->get_uid())
 198         {
 199                 timeiter.second = false;
 200         }
 201
 202         //copy and overwrite
 203         old_waypoint=*iter;
 204         *iter=waypoint;
 205
 206         //if we've found a unique one then we need to erase it, but store it first
 207         if(timeiter.second)
 208         {
 209                 time_overwrite = true;
 210                 overwritten_wp = *timeiter.first;
 211
 212                 value_node->erase(overwritten_wp);
 213         }
 214 #endif
 215
 216         // Signal that a valuenode has been changed
 217         value_node->changed();
 218 }
 219
 220 void
 221 Action::WaypointSet::undo()
 222 {
 223         WaypointList::iterator iter;
 224
 225 #if 1
 226         vector<Waypoint>::iterator i = old_waypoints.begin(), end = old_waypoints.end();
 227
 228         for(; i != end; ++i)
 229         {
 230                 try { iter = value_node->find(*i); }
 231                 catch(synfig::Exception::NotFound)
 232                 {
 233                         throw Error(_("Unable to find waypoint"));
 234                 }
 235
 236                 //overwrite with old one
 237                 *iter = *i;
 238         }
 239
 240         //add back in all the points that we removed before...
 241         {
 242                 vector<Waypoint>::iterator      oi = overwritten_waypoints.begin(),
 243                                                                         oend = overwritten_waypoints.end();
 244                 for(; oi != oend; ++oi)
 245                 {
 246                         value_node->add(*oi);
 247                 }
 248         }
 249
 250 #else
 251         try { iter=value_node->find(old_waypoint); }
 252         catch(synfig::Exception::NotFound)
 253         {
 254                 throw Error(_("Unable to find waypoint"));
 255         }
 256
 257         *iter=old_waypoint;
 258
 259         if(time_overwrite)
 260         {
 261                 value_node->add(overwritten_wp);
 262         }
 263 #endif
 264
 265         // Signal that a valuenode has been changed
 266         value_node->changed();
 267 }