synfig-studio/trunk/src/synfigapp/actions/keyframeset.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file keyframeset.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 "keyframeset.h"
  33 #include <synfigapp/canvasinterface.h>
  34 #include <synfig/valuenode_dynamiclist.h>
  35 #include <synfig/valuenode_animated.h>
  36 #include "activepointsetsmart.h"
  37 #include "waypointsetsmart.h"
  38
  39 #include <synfigapp/general.h>
  40
  41 #endif
  42
  43 using namespace std;
  44 using namespace etl;
  45 using namespace synfig;
  46 using namespace synfigapp;
  47 using namespace Action;
  48
  49 /* === M A C R O S ========================================================= */
  50
  51 ACTION_INIT(Action::KeyframeSet);
  52 ACTION_SET_NAME(Action::KeyframeSet,"keyframe_set");
  53 ACTION_SET_LOCAL_NAME(Action::KeyframeSet,N_("Set Keyframe"));
  54 ACTION_SET_TASK(Action::KeyframeSet,"set");
  55 ACTION_SET_CATEGORY(Action::KeyframeSet,Action::CATEGORY_KEYFRAME|Action::CATEGORY_HIDDEN);
  56 ACTION_SET_PRIORITY(Action::KeyframeSet,0);
  57 ACTION_SET_VERSION(Action::KeyframeSet,"0.0");
  58 ACTION_SET_CVS_ID(Action::KeyframeSet,"$Id$");
  59
  60 /* === G L O B A L S ======================================================= */
  61
  62 /* === P R O C E D U R E S ================================================= */
  63
  64 /* === M E T H O D S ======================================================= */
  65
  66 Action::KeyframeSet::KeyframeSet()
  67 {
  68         keyframe.set_time(Time::begin()-1);
  69         set_dirty(false);
  70 }
  71
  72 Action::ParamVocab
  73 Action::KeyframeSet::get_param_vocab()
  74 {
  75         ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
  76
  77         ret.push_back(ParamDesc("keyframe",Param::TYPE_KEYFRAME)
  78                 .set_local_name(_("New Keyframe"))
  79                 .set_desc(_("Keyframe to be added"))
  80         );
  81
  82         return ret;
  83 }
  84
  85 bool
  86 Action::KeyframeSet::is_candidate(const ParamList &x)
  87 {
  88         return candidate_check(get_param_vocab(),x);
  89 }
  90
  91 bool
  92 Action::KeyframeSet::set_param(const synfig::String& name, const Action::Param &param)
  93 {
  94         if(name=="keyframe" && param.get_type()==Param::TYPE_KEYFRAME)
  95         {
  96                 synfig::info("KeyframeSet::set_param():old_time: %s",keyframe.get_time().get_string().c_str());
  97                 keyframe=param.get_keyframe();
  98                 synfig::info("KeyframeSet::set_param():new_time: %s",keyframe.get_time().get_string().c_str());
  99                 synfig::info("KeyframeSet::set_param():get_keyframe(): %s",param.get_keyframe().get_time().get_string().c_str());
 100
 101                 return true;
 102         }
 103
 104         return Action::CanvasSpecific::set_param(name,param);
 105 }
 106
 107 bool
 108 Action::KeyframeSet::is_ready()const
 109 {
 110         if(keyframe.get_time()==(Time::begin()-1))
 111                 return false;
 112         return Action::CanvasSpecific::is_ready();
 113 }
 114
 115 void
 116 Action::KeyframeSet::prepare()
 117 {
 118         clear();
 119         guid_set.clear();
 120
 121
 122
 123
 124
 125         //synfig::info("new_time: %s",new_time.get_string().c_str());
 126         //synfig::info("old_time: %s",old_time.get_string().c_str());
 127
 128         try { if(get_canvas()->keyframe_list().find(new_time)!=get_canvas()->keyframe_list().end()) throw Error(_("A Keyframe already exists at this point in time"));}
 129         catch(...) { }
 130
 131
 132         // If the times are different, then we
 133         // will need to romp through the valuenodes
 134         // and add actions to update their values.
 135         if(new_time!=old_time)
 136         {
 137                 std::vector<synfigapp::ValueDesc> value_desc_list;
 138                 get_canvas_interface()->find_important_value_descs(value_desc_list);
 139                 while(!value_desc_list.empty())
 140                 {
 141                         process_value_desc(value_desc_list.back());
 142                         value_desc_list.pop_back();
 143                 }
 144         }
 145 }
 146
 147 #define old_2_new(x)    (((x)-old_begin)/(old_end-old_begin)*(new_end-new_begin)+new_begin)
 148
 149 int
 150 Action::KeyframeSet::scale_activepoints(const synfigapp::ValueDesc& value_desc,const synfig::Time& old_begin,const synfig::Time& old_end,const synfig::Time& new_begin,const synfig::Time& new_end)
 151 {
 152         ValueNode_DynamicList::Handle value_node(ValueNode_DynamicList::Handle::cast_static(value_desc.get_parent_value_node()));
 153         ValueNode_DynamicList::ListEntry& list_entry(value_node->list[value_desc.get_index()]);
 154
 155         std::vector<Activepoint*> selected;
 156         std::vector<Activepoint*>::iterator iter;
 157
 158         if(list_entry.find(old_begin,old_end,selected))
 159         {
 160                 // check to make sure this operation is OK
 161                 for(iter=selected.begin();iter!=selected.end();++iter)
 162                 {
 163                         try
 164                         {
 165                                 Time new_time(old_2_new((*iter)->get_time()));
 166                                 if(new_time>=old_begin && new_time<old_end)
 167                                         continue;
 168                                 list_entry.find(new_time);
 169                                 // If we found a activepoint already at that time, then
 170                                 // we need to abort
 171                                 //throw Exception::BadTime(_("Activepoint Conflict"));
 172                         }
 173                         catch(Exception::NotFound) { }
 174                 }
 175
 176                 int ret(0);
 177                 while(!selected.empty())
 178                 {
 179                         if(selected.back()->get_time()!=old_2_new(selected.back()->get_time()))
 180                         {
 181                                 Action::Handle action(Action::create("activepoint_set"));
 182
 183                                 action->set_param("canvas",get_canvas());
 184                                 action->set_param("canvas_interface",get_canvas_interface());
 185                                 action->set_param("value_desc",value_desc);
 186
 187                                 Activepoint activepoint(*selected.back());
 188                                 activepoint.set_time(old_2_new(selected.back()->get_time()));
 189
 190                                 action->set_param("activepoint",activepoint);
 191
 192                                 assert(action->is_ready());
 193                                 if(!action->is_ready())
 194                                         throw Error(Error::TYPE_NOTREADY);
 195
 196                                 add_action_front(action);
 197
 198                                 ret++;
 199                         }
 200                         selected.pop_back();
 201                 }
 202                 return ret;
 203         }
 204         return 0;
 205 }
 206
 207 int
 208 Action::KeyframeSet::scale_waypoints(const synfigapp::ValueDesc& value_desc,const synfig::Time& old_begin,const synfig::Time& old_end,const synfig::Time& new_begin,const synfig::Time& new_end)
 209 {
 210         ValueNode_Animated::Handle value_node(ValueNode_Animated::Handle::cast_static(value_desc.get_value_node()));
 211
 212         std::vector<Waypoint*> selected;
 213         std::vector<Waypoint*>::iterator iter;
 214
 215         if(value_node->find(old_begin,old_end,selected))
 216         {
 217                 // check to make sure this operation is OK
 218                 for(iter=selected.begin();iter!=selected.end();++iter)
 219                 {
 220                         try
 221                         {
 222                                 Time new_time(old_2_new((*iter)->get_time()));
 223                                 if(new_time>=old_begin && new_time<old_end)
 224                                         continue;
 225                                 value_node->find(new_time);
 226                                 // If we found a waypoint point already at that time, then
 227                                 // we need to abort
 228                                 //synfig::info(_("old_begin: %s, old_end: %s"),old_begin.get_string().c_str(),old_end.get_string().c_str());
 229                                 //synfig::info(_("new_begin: %s, new_end: %s"),new_begin.get_string().c_str(),new_end.get_string().c_str());
 230                                 //throw Exception::BadTime(strprintf(_("Waypoint Conflict, old: %s, new: %s"),(*iter)->get_time().get_string().c_str(),new_time.get_string().c_str()));
 231                         }
 232                         catch(Exception::NotFound) { }
 233                 }
 234
 235                 int ret(0);
 236                 while(!selected.empty())
 237                 {
 238                         if(selected.back()->get_time()!=old_2_new(selected.back()->get_time()))
 239                         {
 240                                 Action::Handle action(Action::create("waypoint_set"));
 241
 242                                 action->set_param("canvas",get_canvas());
 243                                 action->set_param("canvas_interface",get_canvas_interface());
 244                                 action->set_param("value_node",ValueNode::Handle::cast_static(value_node));
 245
 246                                 Waypoint waypoint(*selected.back());
 247                                 waypoint.set_time(old_2_new(selected.back()->get_time()));
 248
 249                                 action->set_param("waypoint",waypoint);
 250
 251                                 assert(action->is_ready());
 252                                 if(!action->is_ready())
 253                                         throw Error(Error::TYPE_NOTREADY);
 254
 255                                 add_action_front(action);
 256
 257                                 ret++;
 258                         }
 259                         selected.pop_back();
 260                 }
 261                 return ret;
 262         }
 263         return 0;
 264 }
 265
 266 void
 267 Action::KeyframeSet::process_value_desc(const synfigapp::ValueDesc& value_desc)
 268 {
 269         if(value_desc.is_value_node())
 270         {
 271                 ValueNode::Handle value_node(value_desc.get_value_node());
 272
 273                 //if(guid_set.count(value_node->get_guid()))
 274                 //      return;
 275                 //guid_set.insert(value_node->get_guid());
 276
 277                 // If we are a dynamic list, then we need to update the ActivePoints
 278                 if(ValueNode_DynamicList::Handle::cast_dynamic(value_node))
 279                 {
 280                         ValueNode_DynamicList::Handle value_node_dynamic(ValueNode_DynamicList::Handle::cast_dynamic(value_node));
 281                         int i;
 282                         for(i=0;i<value_node_dynamic->link_count();i++)
 283                         {
 284                                 synfigapp::ValueDesc value_desc(value_node_dynamic,i);
 285                                 if(new_time>keyframe_prev && new_time<keyframe_next)
 286                                 {
 287                                         // In this circumstance, we need to adjust any
 288                                         // activepoints between the previous and next
 289                                         // keyframes
 290                                         scale_activepoints(value_desc,keyframe_prev,old_time,keyframe_prev,new_time);
 291                                         scale_activepoints(value_desc,old_time,keyframe_next,new_time,keyframe_next);
 292                                 }
 293                                 //else
 294                                 {
 295                                         Action::Handle action(ActivepointSetSmart::create());
 296
 297                                         action->set_param("canvas",get_canvas());
 298                                         action->set_param("canvas_interface",get_canvas_interface());
 299                                         action->set_param("value_desc",value_desc);
 300
 301                                         Activepoint activepoint;
 302                                         try
 303                                         {
 304                                                 activepoint=*value_node_dynamic->list[i].find(old_time);
 305                                                 activepoint.set_time(new_time);
 306                                         }
 307                                         catch(...)
 308                                         {
 309                                                 activepoint.set_time(new_time);
 310                                                 activepoint.set_state(value_node_dynamic->list[i].status_at_time(old_time));
 311                                                 activepoint.set_priority(0);
 312                                         }
 313                                         action->set_param("activepoint",activepoint);
 314
 315                                         assert(action->is_ready());
 316                                         if(!action->is_ready())
 317                                                 throw Error(Error::TYPE_NOTREADY);
 318
 319                                         add_action_front(action);
 320                                 }
 321                         }
 322                 }
 323                 else if(ValueNode_Animated::Handle::cast_dynamic(value_node))
 324                 {
 325                         if(new_time>keyframe_prev && new_time<keyframe_next)
 326                         {
 327                                         // In this circumstance, we need to adjust any
 328                                         // waypoints between the previous and next
 329                                         // keyframes
 330                                         scale_waypoints(value_desc,keyframe_prev,old_time,keyframe_prev,new_time);
 331                                         scale_waypoints(value_desc,old_time,keyframe_next,new_time,keyframe_next);
 332                         }
 333                         //else
 334                         {
 335                                 ValueNode_Animated::Handle value_node_animated(ValueNode_Animated::Handle::cast_dynamic(value_node));
 336
 337                                 Action::Handle action(WaypointSetSmart::create());
 338
 339                                 action->set_param("canvas",get_canvas());
 340                                 action->set_param("canvas_interface",get_canvas_interface());
 341                                 action->set_param("value_node",ValueNode::Handle(value_node_animated));
 342
 343                                 Waypoint waypoint;
 344                                 try
 345                                 {
 346                                         waypoint=*value_node_animated->find(old_time);
 347                                         waypoint.set_time(new_time);
 348                                 }
 349                                 catch(...)
 350                                 {
 351                                         waypoint.set_time(new_time);
 352                                         waypoint.set_value((*value_node_animated)(old_time));
 353                                 }
 354                                 action->set_param("waypoint",waypoint);
 355
 356                                 assert(action->is_ready());
 357                                 if(!action->is_ready())
 358                                         throw Error(Error::TYPE_NOTREADY);
 359
 360                                 add_action_front(action);
 361                         }
 362                 }
 363         }
 364 }
 365
 366
 367 void
 368 Action::KeyframeSet::perform()
 369 {
 370
 371         old_time=get_canvas()->keyframe_list().find(keyframe)->get_time();
 372         new_time=keyframe.get_time();
 373
 374         try { get_canvas()->keyframe_list().find(keyframe);}
 375         catch(synfig::Exception::NotFound)
 376         {
 377                 throw Error(_("Unable to find the given keyframe"));
 378         }
 379
 380         // Check for collisions
 381         if(old_time!=new_time)
 382         {
 383                 try {
 384                         get_canvas()->keyframe_list().find(new_time);
 385                         throw Error(_("Cannot change keyframe time because another keyframe already exists with that time."));
 386                 }
 387                 catch(Exception::NotFound) { }
 388         }
 389         try { keyframe_next=get_canvas()->keyframe_list().find_next(old_time)->get_time(); }
 390         catch(...) { keyframe_next=Time::end(); }
 391         try { keyframe_prev=get_canvas()->keyframe_list().find_prev(old_time)->get_time(); }
 392         catch(...) { keyframe_prev=Time::begin(); }
 393
 394         old_keyframe=*get_canvas()->keyframe_list().find(keyframe);
 395         *get_canvas()->keyframe_list().find(keyframe)=keyframe;
 396
 397         get_canvas()->keyframe_list().sync();
 398
 399         try{
 400                 Action::Super::perform();
 401         } catch(...)
 402         {
 403                 *get_canvas()->keyframe_list().find(old_keyframe)=old_keyframe;
 404
 405                 get_canvas()->keyframe_list().sync();
 406                 throw;
 407         }
 408
 409         // Signal that a layer has been inserted
 410         if(get_canvas_interface())
 411         {
 412                 get_canvas_interface()->signal_keyframe_changed()(keyframe);
 413         }
 414         else synfig::warning("CanvasInterface not set on action");
 415 }
 416
 417 void
 418 Action::KeyframeSet::undo()
 419 {
 420         Action::Super::undo();
 421
 422         *get_canvas()->keyframe_list().find(old_keyframe)=old_keyframe;
 423
 424         get_canvas()->keyframe_list().sync();
 425
 426         // Signal that a layer has been inserted
 427         if(get_canvas_interface())
 428         {
 429                 get_canvas_interface()->signal_keyframe_changed()(keyframe);
 430         }
 431         else synfig::warning("CanvasInterface not set on action");
 432 }