synfig-studio/trunk/src/gtkmm/keyframetreestore.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file keyframetreestore.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2007, 2008 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include "keyframetreestore.h"
  34 #include <synfig/valuenode.h>
  35 #include "iconcontroller.h"
  36 #include <synfig/valuenode_timedswap.h>
  37 #include <gtkmm/button.h>
  38 #include <gtkmm/treerowreference.h>
  39 #include <synfig/canvas.h>
  40 #include <synfig/keyframe.h>
  41 #include <time.h>
  42 #include <cstdlib>
  43 #include <ETL/smart_ptr>
  44 #include <synfigapp/action.h>
  45 #include <synfigapp/instance.h>
  46 #include "onemoment.h"
  47 #include <synfig/exception.h>
  48
  49 #include "general.h"
  50
  51 #endif
  52
  53 /* === U S I N G =========================================================== */
  54
  55 using namespace std;
  56 using namespace etl;
  57 using namespace synfig;
  58 using namespace studio;
  59
  60 /* === M A C R O S ========================================================= */
  61
  62 /* === G L O B A L S ======================================================= */
  63
  64 // KeyframeTreeStore_Class KeyframeTreeStore::keyframe_tree_store_class_;
  65
  66 /* === C L A S S E S & S T R U C T S ======================================= */
  67
  68 struct _keyframe_iterator
  69 {
  70         synfig::KeyframeList::iterator iter;
  71         int ref_count;
  72         int index;
  73 };
  74
  75 /*
  76 Gtk::TreeModel::iterator keyframe_iter_2_model_iter(synfig::KeyframeList::iterator iter,int index)
  77 {
  78         Gtk::TreeModel::iterator ret;
  79
  80         _keyframe_iterator*& data(static_cast<_keyframe_iterator*&>(ret->gobj()->user_data));
  81         data=new _keyframe_iterator();
  82         data->ref_count=1;
  83         data->iter=iter;
  84         data->index=index;
  85
  86         return ret;
  87 }
  88 */
  89
  90 synfig::KeyframeList::iterator model_iter_2_keyframe_iter(Gtk::TreeModel::iterator iter)
  91 {
  92         _keyframe_iterator* data(static_cast<_keyframe_iterator*>(iter->gobj()->user_data));
  93         if(!data)
  94                 throw std::runtime_error("bad data");
  95         return data->iter;
  96 }
  97
  98 int get_index_from_model_iter(Gtk::TreeModel::iterator iter)
  99 {
 100         _keyframe_iterator* data(static_cast<_keyframe_iterator*>(iter->gobj()->user_data));
 101         if(!data)
 102                 throw std::runtime_error("bad data");
 103         return data->index;
 104 }
 105
 106
 107 /*
 108 #ifndef TreeRowReferenceHack
 109 class TreeRowReferenceHack
 110 {
 111         GtkTreeRowReference *gobject_;
 112 public:
 113         TreeRowReferenceHack():
 114                 gobject_(0)
 115         {
 116         }
 117
 118         TreeRowReferenceHack(const Glib::RefPtr<Gtk::TreeModel>& model, const Gtk::TreeModel::Path& path):
 119                 gobject_ ( gtk_tree_row_reference_new(model->gobj(), const_cast<GtkTreePath*>(path.gobj())) )
 120         {
 121         }
 122
 123         TreeRowReferenceHack(const TreeRowReferenceHack &x):
 124                 gobject_ ( x.gobject_?gtk_tree_row_reference_copy(x.gobject_):0 )
 125         {
 126
 127         }
 128
 129         void swap(TreeRowReferenceHack & other)
 130         {
 131                 GtkTreeRowReference *const temp = gobject_;
 132                 gobject_ = other.gobject_;
 133                 other.gobject_ = temp;
 134         }
 135
 136         const TreeRowReferenceHack &
 137         operator=(const TreeRowReferenceHack &rhs)
 138         {
 139                 TreeRowReferenceHack temp (rhs);
 140                 swap(temp);
 141                 return *this;
 142         }
 143
 144         ~TreeRowReferenceHack()
 145         {
 146                 if(gobject_)
 147                         gtk_tree_row_reference_free(gobject_);
 148         }
 149
 150         Gtk::TreeModel::Path get_path() { return Gtk::TreeModel::Path(gtk_tree_row_reference_get_path(gobject_),false); }
 151         GtkTreeRowReference *gobj() { return gobject_; }
 152 };
 153 #endif
 154 */
 155
 156 /* === P R O C E D U R E S ================================================= */
 157
 158 void clear_iterator(GtkTreeIter* iter)
 159 {
 160         iter->stamp=0;
 161         iter->user_data=iter->user_data2=iter->user_data3=0;
 162 }
 163
 164 /* === M E T H O D S ======================================================= */
 165
 166 const Glib::Class&
 167 KeyframeTreeStore_Class::init()
 168 {
 169         if(!gtype_)
 170         {
 171                 class_init_func_ = &KeyframeTreeStore_Class::class_init_function;
 172
 173                 const GTypeInfo derived_info =
 174                 {
 175                         sizeof(GObjectClass),
 176                         NULL,
 177                         NULL,
 178                         class_init_func_,
 179                         NULL,
 180                         NULL,
 181                         sizeof(GObject),
 182                         0,
 183                         0,
 184                         NULL
 185                 };
 186
 187                 gtype_ = g_type_register_static(G_TYPE_OBJECT, "KeyframeTreeStore", &derived_info, GTypeFlags(0));
 188                 Gtk::TreeModel::add_interface(get_type());
 189         }
 190         return *this;
 191 }
 192
 193 void
 194 KeyframeTreeStore_Class::class_init_function(gpointer /*g_class*/, gpointer /*class_data*/)
 195 {
 196         // ???
 197 }
 198
 199 KeyframeTreeStore::KeyframeTreeStore(etl::loose_handle<synfigapp::CanvasInterface> canvas_interface_):
 200         Glib::ObjectBase        ("KeyframeTreeStore"),
 201         //! \todo what is going on here?  why the need for this KeyframeTreeStore_Class at all?
 202         // Glib::Object         (Glib::ConstructParams(keyframe_tree_store_class_.init(), (char*) 0, (char*) 0)),
 203         canvas_interface_       (canvas_interface_)
 204 {
 205         reset_stamp();
 206         //reset_path_table();
 207
 208         canvas_interface()->signal_keyframe_added().connect(sigc::mem_fun(*this,&studio::KeyframeTreeStore::add_keyframe));
 209         canvas_interface()->signal_keyframe_removed().connect(sigc::mem_fun(*this,&studio::KeyframeTreeStore::remove_keyframe));
 210         canvas_interface()->signal_keyframe_changed().connect(sigc::mem_fun(*this,&studio::KeyframeTreeStore::change_keyframe));
 211 }
 212
 213 KeyframeTreeStore::~KeyframeTreeStore()
 214 {
 215         if (getenv("SYNFIG_DEBUG_DESTRUCTORS"))
 216                 synfig::info("KeyframeTreeStore::~KeyframeTreeStore(): Deleted");
 217 }
 218
 219 Glib::RefPtr<KeyframeTreeStore>
 220 KeyframeTreeStore::create(etl::loose_handle<synfigapp::CanvasInterface> canvas_interface_)
 221 {
 222         KeyframeTreeStore *store(new KeyframeTreeStore(canvas_interface_));
 223         Glib::RefPtr<KeyframeTreeStore> ret(store);
 224         assert(ret);
 225         return ret;
 226 }
 227
 228 void
 229 KeyframeTreeStore::reset_stamp()
 230 {
 231         stamp_=time(0)+reinterpret_cast<long>(this);
 232 }
 233
 234 /*
 235 void
 236 KeyframeTreeStore::reset_path_table()
 237 {
 238         Gtk::TreeModel::Children::iterator iter;
 239         const Gtk::TreeModel::Children children(children());
 240         path_table_.clear();
 241         for(iter = children.begin(); iter != children.end(); ++iter)
 242         {
 243                 Gtk::TreeModel::Row row(*iter);
 244                 path_table_[(Keyframe)row[model.keyframe]]=TreeRowReferenceHack(Glib::RefPtr<KeyframeTreeStore>(this),Gtk::TreePath(row));
 245         }
 246 }
 247 */
 248
 249
 250 inline bool
 251 KeyframeTreeStore::iterator_sane(const GtkTreeIter* iter)const
 252 {
 253         if(iter && iter->stamp==stamp_)
 254                 return true;
 255         g_warning("KeyframeTreeStore::iterator_sane(): Bad iterator stamp");
 256         return false;
 257 }
 258
 259 inline bool
 260 KeyframeTreeStore::iterator_sane(const Gtk::TreeModel::iterator& iter)const
 261 {
 262         return iterator_sane(iter->gobj());
 263 }
 264
 265 inline void
 266 KeyframeTreeStore::dump_iterator(const GtkTreeIter* /*gtk_iter*/, const Glib::ustring &/*name*/)const
 267 {
 268 #if 0
 269         if(!gtk_iter)
 270         {
 271                 g_warning("KeyframeTreeStore::dump_iterator: \"%s\" is NULL (Root?)",name.c_str());
 272                 return;
 273         }
 274
 275         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->user_data));
 276
 277         if(gtk_iter->stamp!=stamp_ || !iter)
 278         {
 279                 g_warning("KeyframeTreeStore::dump_iterator: \"%s\" is INVALID",name.c_str());
 280                 return;
 281         }
 282
 283         if((unsigned)iter->index>=canvas_interface()->get_canvas()->keyframe_list().size())
 284                 g_warning("KeyframeTreeStore::dump_iterator: \"%s\"(%p) has bad index(index:%d)",name.c_str(),gtk_iter,iter->index);
 285
 286         g_warning("KeyframeTreeStore::dump_iterator: \"%s\"(%p) ref:%d, index:%d, time:%s",name.c_str(),gtk_iter,iter->ref_count,iter->index,iter->iter->get_time().get_string().c_str());
 287 #endif
 288 }
 289
 290 inline void
 291 KeyframeTreeStore::dump_iterator(const Gtk::TreeModel::iterator& iter, const Glib::ustring &name)const
 292 {
 293         dump_iterator(iter->gobj(),name);
 294 }
 295
 296 int
 297 KeyframeTreeStore::time_sorter(const Gtk::TreeModel::iterator &rhs,const Gtk::TreeModel::iterator &lhs)
 298 {
 299         const Model model;
 300
 301         _keyframe_iterator *rhs_iter(static_cast<_keyframe_iterator*>(rhs->gobj()->user_data));
 302         _keyframe_iterator *lhs_iter(static_cast<_keyframe_iterator*>(lhs->gobj()->user_data));
 303
 304         Time diff(rhs_iter->iter->get_time()-lhs_iter->iter->get_time());
 305         if(diff<0)
 306                 return -1;
 307         if(diff>0)
 308                 return 1;
 309         return 0;
 310 }
 311
 312 int
 313 KeyframeTreeStore::description_sorter(const Gtk::TreeModel::iterator &rhs,const Gtk::TreeModel::iterator &lhs)
 314 {
 315         const Model model;
 316
 317         _keyframe_iterator *rhs_iter(static_cast<_keyframe_iterator*>(rhs->gobj()->user_data));
 318         _keyframe_iterator *lhs_iter(static_cast<_keyframe_iterator*>(lhs->gobj()->user_data));
 319
 320         int comp = rhs_iter->iter->get_description().compare(lhs_iter->iter->get_description());
 321         if (comp > 0) return 1;
 322         if (comp < 0) return -1;
 323         return 0;
 324 }
 325
 326 void
 327 KeyframeTreeStore::set_value_impl(const Gtk::TreeModel::iterator& row, int column, const Glib::ValueBase& value)
 328 {
 329         if(!iterator_sane(row))
 330                 return;
 331
 332         if(column>=get_n_columns_vfunc())
 333         {
 334                 g_warning("KeyframeTreeStore::set_value_impl: Bad column (%d)",column);
 335                 return;
 336         }
 337
 338         if(!g_value_type_compatible(G_VALUE_TYPE(value.gobj()),get_column_type_vfunc(column)))
 339         {
 340                 g_warning("KeyframeTreeStore::set_value_impl: Bad value type");
 341                 return;
 342         }
 343
 344         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(row.gobj()->user_data));
 345
 346         try
 347         {
 348                 if(column==model.time_delta.index())
 349                 {
 350                         Glib::Value<synfig::Time> x;
 351                         g_value_init(x.gobj(),model.time.type());
 352                         g_value_copy(value.gobj(),x.gobj());
 353
 354                         Time new_delta(x.get());
 355                         if(new_delta<=Time::zero()+Time::epsilon())
 356                         {
 357                                 // Bad value
 358                                 return;
 359                         }
 360
 361                         Time old_delta((*row)[model.time_delta]);
 362                         if(old_delta<=Time::zero()+Time::epsilon())
 363                         {
 364                                 // Bad old delta
 365                                 return;
 366                         }
 367                         // row(row) on the next line is bad - don't use it, because it leaves 'row' uninitialized
 368                         //Gtk::TreeModel::iterator row(row);
 369                         //row++;
 370                         //if(!row)return;
 371
 372                         Time change_delta(new_delta-old_delta);
 373
 374                         if(change_delta<=Time::zero()+Time::epsilon() &&change_delta>=Time::zero()-Time::epsilon())
 375                         {
 376                                 // Not an error, just no change
 377                                 return;
 378                         }
 379
 380                         {
 381                                 Keyframe keyframe((*row)[model.keyframe]);
 382                                 synfigapp::Action::Handle action(synfigapp::Action::create("keyframe_set_delta"));
 383
 384                                 if(!action)return;
 385
 386                                 action->set_param("canvas",canvas_interface()->get_canvas());
 387                                 action->set_param("canvas_interface",canvas_interface());
 388                                 action->set_param("keyframe",keyframe);
 389                                 action->set_param("delta",change_delta);
 390
 391                                 canvas_interface()->get_instance()->perform_action(action);
 392                         }
 393
 394                         return;
 395                 }
 396                 else
 397                 if(column==model.time.index())
 398                 {
 399                         OneMoment one_moment;
 400
 401                         Glib::Value<synfig::Time> x;
 402                         g_value_init(x.gobj(),model.time.type());
 403                         g_value_copy(value.gobj(),x.gobj());
 404                         synfig::Keyframe keyframe(*iter->iter);
 405
 406                         synfig::info("KeyframeTreeStore::set_value_impl():old_time=%s",keyframe.get_time().get_string().c_str());
 407                         keyframe.set_time(x.get());
 408                         synfig::info("KeyframeTreeStore::set_value_impl():new_time=%s",keyframe.get_time().get_string().c_str());
 409
 410                         synfigapp::Action::Handle action(synfigapp::Action::create("keyframe_set"));
 411
 412                         if(!action)
 413                                 return;
 414
 415                         action->set_param("canvas",canvas_interface()->get_canvas());
 416                         action->set_param("canvas_interface",canvas_interface());
 417                         action->set_param("keyframe",keyframe);
 418
 419                         canvas_interface()->get_instance()->perform_action(action);
 420                 }
 421                 else if(column==model.description.index())
 422                 {
 423                         Glib::Value<Glib::ustring> x;
 424                         g_value_init(x.gobj(),model.description.type());
 425                         g_value_copy(value.gobj(),x.gobj());
 426                         synfig::Keyframe keyframe(*iter->iter);
 427                         keyframe.set_description(x.get());
 428
 429                         synfigapp::Action::Handle action(synfigapp::Action::create("keyframe_set"));
 430
 431                         if(!action)
 432                                 return;
 433
 434                         action->set_param("canvas",canvas_interface()->get_canvas());
 435                         action->set_param("canvas_interface",canvas_interface());
 436                         action->set_param("keyframe",keyframe);
 437
 438                         canvas_interface()->get_instance()->perform_action(action);
 439                 }
 440                 else if(column==model.keyframe.index())
 441                 {
 442                         g_warning("KeyframeTreeStore::set_value_impl: This column is read-only");
 443                 }
 444                 else
 445                 {
 446                         assert(0);
 447                 }
 448         }
 449         catch(std::exception x)
 450         {
 451                 g_warning(x.what());
 452         }
 453 }
 454
 455 Gtk::TreeModelFlags
 456 KeyframeTreeStore::get_flags_vfunc ()
 457 {
 458         return Gtk::TREE_MODEL_LIST_ONLY;
 459 }
 460
 461 int
 462 KeyframeTreeStore::get_n_columns_vfunc ()
 463 {
 464         return model.size();
 465 }
 466
 467 GType
 468 KeyframeTreeStore::get_column_type_vfunc (int index)
 469 {
 470         return model.types()[index];
 471 }
 472
 473 bool
 474 KeyframeTreeStore::iter_next_vfunc (const iterator& xiter, iterator& iter_next) const
 475 {
 476         if(!iterator_sane(xiter)) return false;
 477
 478         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(xiter.gobj()->user_data));
 479
 480         if(iter->iter==canvas_interface()->get_canvas()->keyframe_list().end())
 481                 return false;
 482
 483         _keyframe_iterator *next(new _keyframe_iterator());
 484         iter_next.gobj()->user_data=static_cast<gpointer>(next);
 485         next->ref_count=1;
 486         next->index=iter->index+1;
 487         next->iter=iter->iter;
 488         ++next->iter;
 489
 490         if(next->iter==canvas_interface()->get_canvas()->keyframe_list().end())
 491                 return false;
 492
 493         iter_next.gobj()->stamp=stamp_;
 494
 495         return true;
 496 }
 497
 498 /*
 499 bool
 500 KeyframeTreeStore::iter_next_vfunc (GtkTreeIter* gtk_iter)
 501 {
 502         if(!iterator_sane(gtk_iter)) return false;
 503
 504         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->user_data));
 505
 506         // If we are already at the end, then we are very invalid
 507         if(iter->iter==canvas_interface()->get_canvas()->keyframe_list().end())
 508                 return false;
 509
 510         ++(iter->iter);
 511
 512         if(iter->iter==canvas_interface()->get_canvas()->keyframe_list().end())
 513         {
 514                 --(iter->iter);
 515                 return false;
 516         }
 517         (iter->index)++;
 518         return true;
 519 }
 520
 521 bool
 522 KeyframeTreeStore::iter_children_vfunc (GtkTreeIter* gtk_iter, const GtkTreeIter* parent)
 523 {
 524         dump_iterator(gtk_iter,"gtk_iter");
 525         dump_iterator(parent,"parent");
 526
 527         if(!parent || !iterator_sane(parent))
 528         {
 529                 clear_iterator(gtk_iter);
 530                 return false;
 531         }
 532
 533         _keyframe_iterator *iter(new _keyframe_iterator());
 534         iter->ref_count=1;
 535         iter->index=0;
 536         iter->iter=canvas_interface()->get_canvas()->keyframe_list().begin();
 537
 538         gtk_iter->user_data=static_cast<gpointer>(iter);
 539         gtk_iter->stamp=stamp_;
 540
 541         return true;
 542 }
 543
 544 bool
 545 KeyframeTreeStore::iter_has_child_vfunc (const GtkTreeIter*parent)
 546 {
 547         dump_iterator(parent,"parent");
 548
 549         if(parent)
 550                 return false;
 551
 552         return true;
 553 }
 554
 555 int
 556 KeyframeTreeStore::iter_n_children_vfunc (const GtkTreeIter* parent)
 557 {
 558         dump_iterator(parent,"parent");
 559
 560         if(parent)
 561                 return 0;
 562
 563         return canvas_interface()->get_canvas()->keyframe_list().size();
 564 }
 565 */
 566
 567 int
 568 KeyframeTreeStore::iter_n_root_children_vfunc () const
 569 {
 570         return canvas_interface()->get_canvas()->keyframe_list().size();
 571 }
 572
 573 bool
 574 KeyframeTreeStore::iter_nth_root_child_vfunc (int n, iterator& xiter)const
 575 {
 576         if(canvas_interface()->get_canvas()->keyframe_list().size()==0)
 577         {
 578                 return false;
 579         }
 580
 581         if(n<0)
 582         {
 583                 g_warning("KeyframeTreeStore::iter_nth_root_child_vfunc: Out of range (negative index)");
 584                 return false;
 585         }
 586         if(n && (unsigned)n>=canvas_interface()->get_canvas()->keyframe_list().size())
 587         {
 588                 g_warning("KeyframeTreeStore::iter_nth_child_vfunc: Out of range (large index)");
 589                 return false;
 590         }
 591
 592         _keyframe_iterator *iter(new _keyframe_iterator());
 593         iter->ref_count=1;
 594         iter->index=n;
 595         iter->iter=canvas_interface()->get_canvas()->keyframe_list().begin();
 596         while(n--)
 597         {
 598                 if(iter->iter==canvas_interface()->get_canvas()->keyframe_list().end())
 599                 {
 600                         g_warning("KeyframeTreeStore::iter_nth_child_vfunc: >>>BUG<<< in %s on line %d",__FILE__,__LINE__);
 601                         delete iter;
 602                         return false;
 603                 }
 604                 ++iter->iter;
 605         }
 606         xiter.gobj()->user_data=static_cast<gpointer>(iter);
 607         xiter.gobj()->stamp=stamp_;
 608         return true;
 609 }
 610
 611 /*
 612 bool
 613 KeyframeTreeStore::iter_nth_child_vfunc (GtkTreeIter* gtk_iter, const GtkTreeIter* parent, int n)
 614 {
 615         dump_iterator(parent,"parent");
 616
 617         if(parent)
 618         {
 619                 g_warning("KeyframeTreeStore::iter_nth_child_vfunc: I am a list");
 620                 clear_iterator(gtk_iter);
 621                 return false;
 622         }
 623
 624
 625
 626         _keyframe_iterator *iter(new _keyframe_iterator());
 627         iter->ref_count=1;
 628         iter->index=n;
 629         iter->iter=canvas_interface()->get_canvas()->keyframe_list().begin();
 630         while(n--)
 631         {
 632                 if(iter->iter==canvas_interface()->get_canvas()->keyframe_list().end())
 633                 {
 634                         g_warning("KeyframeTreeStore::iter_nth_child_vfunc: >>>BUG<<< in %s on line %d",__FILE__,__LINE__);
 635                         delete iter;
 636                         clear_iterator(gtk_iter);
 637                         return false;
 638                 }
 639                 ++iter->iter;
 640         }
 641
 642         gtk_iter->user_data=static_cast<gpointer>(iter);
 643         gtk_iter->stamp=stamp_;
 644         return true;
 645 }
 646
 647 bool
 648 KeyframeTreeStore::iter_parent_vfunc (GtkTreeIter* gtk_iter, const GtkTreeIter* child)
 649 {
 650         dump_iterator(child,"child");
 651         iterator_sane(child);
 652         clear_iterator(gtk_iter);
 653         return false;
 654 }
 655 */
 656
 657 void
 658 KeyframeTreeStore::ref_node_vfunc (iterator& xiter)const
 659 {
 660         GtkTreeIter* gtk_iter(xiter.gobj());
 661         if(!gtk_iter || !iterator_sane(gtk_iter)) return;
 662
 663         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->user_data));
 664         iter->ref_count++;
 665 }
 666
 667 void
 668 KeyframeTreeStore::unref_node_vfunc (iterator& xiter)const
 669 {
 670         GtkTreeIter* gtk_iter(xiter.gobj());
 671         if(!gtk_iter || !iterator_sane(gtk_iter)) return;
 672
 673         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->user_data));
 674         iter->ref_count--;
 675         if(!iter->ref_count)
 676         {
 677                 delete iter;
 678
 679                 // Make this iterator invalid
 680                 gtk_iter->stamp=0;
 681         }
 682 }
 683
 684 Gtk::TreeModel::Path
 685 KeyframeTreeStore::get_path_vfunc (const iterator& gtk_iter)const
 686 {
 687         Gtk::TreeModel::Path path;
 688
 689         // If this is the root node, then return
 690         // a root path
 691         if(!iterator_sane(gtk_iter))
 692                 return path;
 693
 694         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->gobj()->user_data));
 695
 696         path.append_index(iter->index);
 697
 698         return path;
 699 }
 700
 701 bool
 702 KeyframeTreeStore::get_iter_vfunc (const Gtk::TreeModel::Path& path, iterator& iter)const
 703 {
 704         if(path.get_depth()>=1)
 705                 return iter_nth_root_child_vfunc(path.front(),iter);
 706
 707         // Error case
 708         g_warning("KeyframeTreeStore::get_iter_vfunc(): Bad path \"%s\"",path.to_string().c_str());
 709         //clear_iterator(iter);
 710         return false;
 711 }
 712
 713 bool
 714 KeyframeTreeStore::iter_is_valid (const iterator& iter) const
 715 {
 716         return iterator_sane(iter);
 717 }
 718
 719 void
 720 KeyframeTreeStore::get_value_vfunc (const Gtk::TreeModel::iterator& gtk_iter, int column, Glib::ValueBase& value)const
 721 {
 722         dump_iterator(gtk_iter,"gtk_iter");
 723         if(!iterator_sane(gtk_iter))
 724                 return;
 725
 726         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->gobj()->user_data));
 727
 728         switch(column)
 729         {
 730         case 0:         // Time
 731         {
 732                 Glib::Value<synfig::Time> x;
 733                 g_value_init(x.gobj(),x.value_type());
 734                 x.set(iter->iter->get_time());
 735                 g_value_init(value.gobj(),x.value_type());
 736                 g_value_copy(x.gobj(),value.gobj());
 737                 return;
 738         }
 739         case 3:         // Time Delta
 740         {
 741                 Glib::Value<synfig::Time> x;
 742                 g_value_init(x.gobj(),x.value_type());
 743
 744                 synfig::Keyframe prev_keyframe(*iter->iter);
 745                 synfig::Keyframe keyframe;
 746                 {
 747                         KeyframeList::iterator tmp(iter->iter);
 748                         tmp++;
 749                         if(tmp==get_canvas()->keyframe_list().end())
 750                         {
 751                                 x.set(Time(0));
 752                                 g_value_init(value.gobj(),x.value_type());
 753                                 g_value_copy(x.gobj(),value.gobj());
 754                                 return;
 755                         }
 756                         keyframe=*tmp;
 757                 }
 758
 759                 Time delta(0);
 760                 try {
 761                         delta=keyframe.get_time()-prev_keyframe.get_time();
 762                 }catch(...) { }
 763                 x.set(delta);
 764                 g_value_init(value.gobj(),x.value_type());
 765                 g_value_copy(x.gobj(),value.gobj());
 766                 return;
 767         }
 768         case 1:         // Description
 769         {
 770                 g_value_init(value.gobj(),G_TYPE_STRING);
 771                 g_value_set_string(value.gobj(),iter->iter->get_description().c_str());
 772                 return;
 773         }
 774         case 2:         // Keyframe
 775         {
 776                 Glib::Value<synfig::Keyframe> x;
 777                 g_value_init(x.gobj(),x.value_type());
 778                 x.set(*iter->iter);
 779                 g_value_init(value.gobj(),x.value_type());
 780                 g_value_copy(x.gobj(),value.gobj());
 781                 return;
 782         }
 783         default:
 784                 break;
 785         }
 786 }
 787
 788 Gtk::TreeModel::Row
 789 KeyframeTreeStore::find_row(const synfig::Keyframe &keyframe)
 790 {
 791         Gtk::TreeModel::Row row(*(children().begin()));
 792         dump_iterator(row,"find_row,begin");
 793         const GtkTreeIter *gtk_iter(row.gobj());
 794         if(!iterator_sane(gtk_iter))
 795                 throw std::runtime_error(_("Unable to find Keyframe in table"));
 796
 797         _keyframe_iterator *iter(static_cast<_keyframe_iterator*>(gtk_iter->user_data));
 798
 799         synfig::KeyframeList &keyframe_list(canvas_interface()->get_canvas()->keyframe_list());
 800         if(keyframe_list.empty())
 801                 throw std::runtime_error(_("There are no keyframes n this canvas"));
 802
 803         iter->index=0;
 804
 805         for(iter->iter=keyframe_list.begin();iter->iter!=keyframe_list.end() && *iter->iter!=keyframe;++iter->iter)
 806         {
 807                 iter->index++;
 808         }
 809         if(iter->iter==keyframe_list.end())
 810                 throw std::runtime_error(_("Unable to find Keyframe in table"));
 811         return row;
 812 }
 813
 814 void
 815 KeyframeTreeStore::add_keyframe(synfig::Keyframe keyframe)
 816 {
 817         try
 818         {
 819                 Gtk::TreeRow row(find_row(keyframe));
 820                 dump_iterator(row.gobj(),"add_keyframe,row");
 821                 Gtk::TreePath path(get_path(row));
 822
 823                 row_inserted(path,row);
 824
 825                 old_keyframe_list=get_canvas()->keyframe_list();
 826                 //old_keyframe_list.add(keyframe);
 827                 //old_keyframe_list.sort();
 828         }
 829         catch(std::exception x)
 830         {
 831                 g_warning(x.what());
 832         }
 833 }
 834
 835 void
 836 KeyframeTreeStore::remove_keyframe(synfig::Keyframe keyframe)
 837 {
 838         try
 839         {
 840                 if(1)
 841                 {
 842                         Gtk::TreeRow row(find_row(keyframe));
 843                         dump_iterator(row,"remove_keyframe,row");
 844                         Gtk::TreePath path(get_path(row));
 845                         row_deleted(path);
 846
 847                         old_keyframe_list.erase(keyframe);
 848                 }
 849                 else
 850                 {
 851                         g_warning("KeyframeTreeStore::remove_keyframe: Keyframe not in table");
 852                 }
 853         }
 854         catch(std::exception x)
 855         {
 856                 g_warning(x.what());
 857         }
 858 }
 859
 860 void
 861 KeyframeTreeStore::change_keyframe(synfig::Keyframe keyframe)
 862 {
 863         try
 864         {
 865                 Gtk::TreeRow row(find_row(keyframe));
 866
 867                 unsigned int new_index(get_index_from_model_iter(row));
 868                 unsigned int old_index(0);
 869                 synfig::KeyframeList::iterator iter;
 870                 for(old_index=0,iter=old_keyframe_list.begin();iter!=old_keyframe_list.end() && (UniqueID)*iter!=(UniqueID)keyframe;++iter,old_index++)
 871                         ;
 872
 873                 if(iter!=old_keyframe_list.end() && new_index!=old_index)
 874                 {
 875                         std::vector<int> new_order;
 876                         for(unsigned int i=0;i<old_keyframe_list.size();i++)
 877                         {
 878                                 new_order.push_back(i);
 879                         }
 880                         if(new_order.size()>new_index)
 881                         {
 882                                 new_order.erase(new_order.begin()+new_index);
 883                                 new_order.insert(new_order.begin()+old_index,new_index);
 884
 885                                 //new_order[old_index]=
 886
 887                                 rows_reordered (Path(), iterator(), &new_order[0]);
 888                         }
 889                         old_keyframe_list=get_canvas()->keyframe_list();
 890
 891                         row=find_row(keyframe);
 892                 }
 893
 894                 dump_iterator(row,"change_keyframe,row");
 895                 row_changed(get_path(row),row);
 896         }
 897         catch(std::exception x)
 898         {
 899                 g_warning(x.what());
 900         }
 901 }