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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file duckmatic.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 #include <fstream>
  32 #include <iostream>
  33 #include <algorithm>
  34
  35 #include <ETL/hermite>
  36
  37 #include "duckmatic.h"
  38 #include <synfigapp/value_desc.h>
  39 #include <synfig/general.h>
  40 #include <synfig/paramdesc.h>
  41 #include <synfig/valuenode_timedswap.h>
  42 #include <synfig/valuenode_animated.h>
  43 #include <synfig/valuenode_composite.h>
  44 #include <synfig/valuenode_scale.h>
  45 #include <synfig/valuenode_bline.h>
  46
  47 #include <synfig/curve_helper.h>
  48
  49 #include <sigc++/retype_return.h>
  50 #include <sigc++/retype.h>
  51 #include <sigc++/hide.h>
  52 #include <sigc++/bind.h>
  53
  54 #include "canvasview.h"
  55
  56 #include "onemoment.h"
  57
  58 #endif
  59
  60 /* === U S I N G =========================================================== */
  61
  62 using namespace std;
  63 using namespace etl;
  64 using namespace synfig;
  65 using namespace studio;
  66
  67 /* === M A C R O S ========================================================= */
  68
  69 /* 0.33333333333333333 makes for nice short tangent handles,
  70    1.0 makes them draw as their real length */
  71 #define TANGENT_HANDLE_SCALE 0.33333333333333333
  72
  73 /* leave this alone or the bezier won't lie on top of the bline */
  74 #define TANGENT_BEZIER_SCALE 0.33333333333333333
  75
  76 /* === G L O B A L S ======================================================= */
  77
  78 /* === P R O C E D U R E S ================================================= */
  79
  80 /* === M E T H O D S ======================================================= */
  81
  82 /* === E N T R Y P O I N T ================================================= */
  83
  84 Duckmatic::Duckmatic():
  85         type_mask(Duck::TYPE_ALL-Duck::TYPE_WIDTH),
  86         grid_snap(false),
  87         guide_snap(false),
  88         grid_size(1.0/4.0,1.0/4.0),
  89         show_persistant_strokes(true)
  90 {
  91         axis_lock=false;
  92         drag_offset_=Point(0,0);
  93         clear_duck_dragger();
  94 }
  95
  96 Duckmatic::~Duckmatic()
  97 {
  98         clear_ducks();
  99         //synfig::info("Duckmatic::~Duckmatic(): Deleted. Duck Count=%d",Duck::duck_count);
 100 }
 101
 102 void
 103 Duckmatic::clear_ducks()
 104 {
 105         duck_data_share_map.clear();
 106         duck_map.clear();
 107
 108         //duck_list_.clear();
 109         bezier_list_.clear();
 110         stroke_list_.clear();
 111
 112         if(show_persistant_strokes)
 113                 stroke_list_=persistant_stroke_list_;
 114 }
 115
 116 //! Returns \a true if the given duck is currently selected
 117 bool
 118 Duckmatic::duck_is_selected(const etl::handle<Duck> &duck)const
 119 {
 120         return duck && selected_ducks.count(duck->get_guid());
 121 }
 122
 123 void
 124 Duckmatic::set_grid_size(const synfig::Vector &s)
 125 {
 126         if(grid_size!=s)
 127         {
 128                 grid_size=s;
 129                 signal_grid_changed();
 130         }
 131 }
 132
 133 void
 134 Duckmatic::set_grid_snap(bool x)
 135 {
 136         if(grid_snap!=x)
 137         {
 138                 grid_snap=x;
 139                 signal_grid_changed();
 140         }
 141 }
 142
 143 void
 144 Duckmatic::set_guide_snap(bool x)
 145 {
 146         if(guide_snap!=x)
 147         {
 148                 guide_snap=x;
 149                 signal_grid_changed();
 150         }
 151 }
 152
 153
 154
 155 Duckmatic::GuideList::iterator
 156 Duckmatic::find_guide_x(synfig::Point pos, float radius)
 157 {
 158         GuideList::iterator iter,best(guide_list_x_.end());
 159         float dist(radius);
 160         for(iter=guide_list_x_.begin();iter!=guide_list_x_.end();++iter)
 161         {
 162                 float amount(abs(*iter-pos[0]));
 163                 if(amount<dist)
 164                 {
 165                         dist=amount;
 166                         best=iter;
 167                 }
 168         }
 169         return best;
 170 }
 171
 172 Duckmatic::GuideList::iterator
 173 Duckmatic::find_guide_y(synfig::Point pos, float radius)
 174 {
 175         GuideList::iterator iter,best(guide_list_y_.end());
 176         float dist(radius);
 177         for(iter=guide_list_y_.begin();iter!=guide_list_y_.end();++iter)
 178         {
 179                 float amount(abs(*iter-pos[1]));
 180                 if(amount<=dist)
 181                 {
 182                         dist=amount;
 183                         best=iter;
 184                 }
 185         }
 186         return best;
 187 }
 188
 189 void
 190 Duckmatic::clear_selected_ducks()
 191 {
 192         selected_ducks.clear();
 193         signal_duck_selection_changed_();
 194 }
 195
 196 etl::handle<Duckmatic::Duck>
 197 Duckmatic::get_selected_duck()const
 198 {
 199         if(selected_ducks.empty() || duck_map.empty())
 200                 return 0;
 201         return duck_map.find(*selected_ducks.begin())->second;
 202 }
 203
 204 void
 205 Duckmatic::refresh_selected_ducks()
 206 {
 207 /*
 208         std::set<etl::handle<Duck> >::iterator iter;
 209         std::set<etl::handle<Duck> > new_set;
 210         if(duck_list().empty())
 211         {
 212                 selected_duck_list.clear();
 213                 signal_duck_selection_changed_();
 214                 return;
 215         }
 216
 217         for(iter=selected_duck_list.begin();iter!=selected_duck_list.end();++iter)
 218         {
 219                 etl::handle<Duck> similar(find_similar_duck(*iter));
 220                 if(similar)
 221                 {
 222                         new_set.insert(similar);
 223                 }
 224         }
 225         selected_duck_list=new_set;
 226 */
 227         GUIDSet old_set(selected_ducks);
 228         GUIDSet::const_iterator iter;
 229
 230         for(iter=old_set.begin();iter!=old_set.end();++iter)
 231         {
 232                 if(duck_map.count(*iter)==0)
 233                         selected_ducks.erase(*iter);
 234         }
 235
 236         signal_duck_selection_changed_();
 237 }
 238
 239 bool
 240 Duckmatic::is_duck_group_selectable(const etl::handle<Duck>& x)const
 241 {
 242         const Type type(get_type_mask());
 243
 244         if(( x->get_type() && (!(type & x->get_type())) ) )
 245         {
 246                 return false;
 247         }
 248         if(x->get_value_desc().parent_is_layer_param() && type & Duck::TYPE_POSITION)
 249         {
 250                 Layer::Handle layer(x->get_value_desc().get_layer());
 251                 String layer_name(layer->get_name());
 252                 if(
 253                         layer_name=="outline" ||
 254                         layer_name=="region" ||
 255                         layer_name=="polygon" ||
 256                         layer_name=="curve_gradient"
 257                 )
 258                         return false;
 259                 if((layer_name=="PasteCanvas"|| layer_name=="paste_canvas") &&
 260                    !layer->get_param("children_lock").get(bool()))
 261                         return false;
 262         }
 263         return true;
 264 }
 265
 266 void
 267 Duckmatic::select_all_ducks()
 268 {
 269         DuckMap::const_iterator iter;
 270         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 271                 if(is_duck_group_selectable(iter->second))
 272                         select_duck(iter->second);
 273 }
 274
 275 void
 276 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 277 {
 278         Vector vmin, vmax;
 279         vmin[0]=std::min(tl[0],br[0]);
 280         vmin[1]=std::min(tl[1],br[1]);
 281         vmax[0]=std::max(tl[0],br[0]);
 282         vmax[1]=std::max(tl[1],br[1]);
 283
 284         DuckMap::const_iterator iter;
 285         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 286         {
 287                 Point p(iter->second->get_trans_point());
 288                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 289                    is_duck_group_selectable(iter->second))
 290                         toggle_select_duck(iter->second);
 291         }
 292 }
 293
 294 void
 295 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 296 {
 297         Vector vmin, vmax;
 298         vmin[0]=std::min(tl[0],br[0]);
 299         vmin[1]=std::min(tl[1],br[1]);
 300         vmax[0]=std::max(tl[0],br[0]);
 301         vmax[1]=std::max(tl[1],br[1]);
 302
 303 //      Type type(get_type_mask());
 304
 305         DuckMap::const_iterator iter;
 306         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 307         {
 308                 Point p(iter->second->get_trans_point());
 309                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 310                 {
 311                         if(is_duck_group_selectable(iter->second))
 312                                 select_duck(iter->second);
 313                 }
 314         }
 315 }
 316
 317 int
 318 Duckmatic::count_selected_ducks()const
 319 {
 320         return selected_ducks.size();
 321 }
 322
 323 void
 324 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 325 {
 326         if(duck)
 327         {
 328                 selected_ducks.insert(duck->get_guid());
 329                 signal_duck_selection_changed_();
 330         }
 331 }
 332
 333 DuckList
 334 Duckmatic::get_selected_ducks()const
 335 {
 336         DuckList ret;
 337         GUIDSet::const_iterator iter;
 338         const Type type(get_type_mask());
 339
 340         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 341         {
 342                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 343
 344                 if(d_iter==duck_map.end())
 345                         continue;
 346
 347                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 348                         continue;
 349
 350                 ret.push_back(d_iter->second);
 351         }
 352         return ret;
 353 }
 354
 355 DuckList
 356 Duckmatic::get_duck_list()const
 357 {
 358         DuckList ret;
 359         DuckMap::const_iterator iter;
 360         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 361                 ret.push_back(iter->second);
 362         return ret;
 363 }
 364
 365 void
 366 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 367 {
 368         if(duck && selected_ducks.count(duck->get_guid()))
 369         {
 370                 selected_ducks.erase(duck->get_guid());
 371                 signal_duck_selection_changed_();
 372         }
 373 }
 374
 375 void
 376 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 377 {
 378         if(duck_is_selected(duck))
 379                 unselect_duck(duck);
 380         else
 381                 select_duck(duck);
 382 }
 383
 384
 385 void
 386 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 387 {
 388         if(duck_dragger_)
 389                 duck_dragger_->duck_drag(this,vector);
 390 }
 391
 392 void
 393 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 394 {
 395         if(duck_dragger_)
 396                 duck_dragger_->begin_duck_drag(this,offset);
 397
 398         //drag_offset_=offset;
 399         drag_offset_=find_duck(offset)->get_trans_point();
 400 }
 401
 402 bool
 403 Duckmatic::end_duck_drag()
 404 {
 405         if(duck_dragger_)
 406                 return duck_dragger_->end_duck_drag(this);
 407         return false;
 408 }
 409
 410 Point
 411 Duckmatic::snap_point_to_grid(const Point& x, float radius)const
 412 {
 413         Point ret(x);
 414
 415         GuideList::const_iterator guide_x,guide_y;
 416         bool has_guide_x(false), has_guide_y(false);
 417
 418         guide_x=find_guide_x(ret,radius);
 419         if(guide_x!=guide_list_x_.end())
 420                 has_guide_x=true;
 421
 422         guide_y=find_guide_y(ret,radius);
 423         if(guide_y!=guide_list_y_.end())
 424                 has_guide_y=true;
 425
 426         if(get_grid_snap())
 427         {
 428                 Point snap(
 429                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 430                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]
 431                 );
 432
 433                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 434                         ret[0]=snap[0],has_guide_x=false;
 435                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 436                         ret[1]=snap[1],has_guide_y=false;
 437         }
 438
 439         if(guide_snap)
 440         {
 441                 if(has_guide_x)
 442                         ret[0]=*guide_x;
 443                 if(has_guide_y)
 444                         ret[1]=*guide_y;
 445         }
 446
 447         if(axis_lock)
 448         {
 449                 ret-=drag_offset_;
 450                 if(abs(ret[0])<abs(ret[1]))
 451                         ret[0]=0;
 452                 else
 453                         ret[1]=0;
 454                 ret+=drag_offset_;
 455         }
 456
 457         return ret;
 458 }
 459
 460 void
 461 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 462 {
 463         last_translate_=Vector(0,0);
 464         {
 465                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 466
 467                 snap=Vector(0,0);
 468         }
 469
 470         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 471         DuckList::const_iterator iter;
 472
 473         positions.clear();
 474         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 475         {
 476                 Point p((*iter)->get_trans_point());
 477                 positions.push_back(p);
 478         }
 479 }
 480
 481 bool
 482 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 483 {
 484         if(last_translate_.mag()>0.0001)
 485         {
 486                 duckmatic->signal_edited_selected_ducks();
 487                 return true;
 488         }
 489         else
 490         {
 491                 duckmatic->signal_user_click_selected_ducks(0);
 492                 return false;
 493         }
 494 }
 495
 496 void
 497 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 498 {
 499         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 500         DuckList::const_iterator iter;
 501
 502         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 503         int i;
 504
 505         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 506         {
 507                 if((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION)continue;
 508                 (*iter)->set_trans_point(positions[i]+vect);
 509         }
 510         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 511         {
 512                 if((*iter)->get_type()==Duck::TYPE_VERTEX||(*iter)->get_type()==Duck::TYPE_POSITION)continue;
 513                 (*iter)->set_trans_point(positions[i]+vect);
 514         }
 515         last_translate_=vect;
 516 }
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527 void
 528 Duckmatic::signal_edited_selected_ducks()
 529 {
 530         const DuckList ducks(get_selected_ducks());
 531         DuckList::const_iterator iter;
 532
 533         synfig::GUIDSet old_set(selected_ducks);
 534
 535         // If we have more than 20 things to move, then display
 536         // something to explain that it may take a moment
 537         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 538
 539         // Go ahead and call everyone's signals
 540         for(iter=ducks.begin();iter!=ducks.end();++iter)
 541         {
 542                 if(!(*iter)->signal_edited()((*iter)->get_point()))
 543                 {
 544                         selected_ducks=old_set;
 545                         throw String("Bad edit");
 546                 }
 547         }
 548         selected_ducks=old_set;
 549 }
 550
 551 void
 552 Duckmatic::signal_user_click_selected_ducks(int button)
 553 {
 554         const DuckList ducks(get_selected_ducks());
 555         DuckList::const_iterator iter;
 556
 557         for(iter=ducks.begin();iter!=ducks.end();++iter)
 558         {
 559                 (*iter)->signal_user_click(button)();
 560         }
 561 }
 562
 563
 564
 565
 566
 567 void
 568 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 569 {
 570         //if(!duck_map.count(duck->get_guid()))
 571         {
 572                 if(duck_data_share_map.count(duck->get_data_guid()))
 573                 {
 574                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 575                 }
 576                 else
 577                 {
 578                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 579                         duck->set_shared_point(point);
 580                         duck_data_share_map[duck->get_data_guid()]=point;
 581                 }
 582
 583                 duck_map.insert(duck);
 584         }
 585
 586         last_duck_guid=duck->get_guid();
 587 }
 588
 589 void
 590 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 591 {
 592         bezier_list_.push_back(bezier);
 593 }
 594
 595 void
 596 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 597 {
 598         assert(stroke_point_list);
 599
 600         std::list<etl::handle<Stroke> >::iterator iter;
 601
 602         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 603         {
 604                 if((*iter)->stroke_data==stroke_point_list)
 605                         return;
 606         }
 607
 608         etl::handle<Stroke> stroke(new Stroke());
 609
 610         stroke->stroke_data=stroke_point_list;
 611         stroke->color=color;
 612
 613         stroke_list_.push_back(stroke);
 614 }
 615
 616 void
 617 Duckmatic::add_persistant_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 618 {
 619         add_stroke(stroke_point_list,color);
 620         persistant_stroke_list_.push_back(stroke_list_.back());
 621 }
 622
 623 void
 624 Duckmatic::clear_persistant_strokes()
 625 {
 626         persistant_stroke_list_.clear();
 627 }
 628
 629 void
 630 Duckmatic::set_show_persistant_strokes(bool x)
 631 {
 632         if(x!=show_persistant_strokes)
 633         {
 634                 show_persistant_strokes=x;
 635                 if(x)
 636                         stroke_list_=persistant_stroke_list_;
 637                 else
 638                         stroke_list_.clear();
 639         }
 640 }
 641
 642 void
 643 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 644 {
 645         duck_map.erase(duck->get_guid());
 646 }
 647
 648 etl::handle<Duckmatic::Duck>
 649 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 650 {
 651         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 652         if(iter!=duck_map.end())
 653                 return iter->second;
 654         return 0;
 655
 656 /*      std::list<handle<Duck> >::reverse_iterator iter;
 657
 658         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 659         {
 660                 if(*iter!=duck && **iter==*duck)
 661                 {
 662                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 663                         return *iter;
 664                 }
 665         }
 666         return 0;
 667 */
 668 }
 669
 670 etl::handle<Duckmatic::Duck>
 671 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 672 {
 673         etl::handle<Duck> similar(find_similar_duck(duck));
 674         if(!similar)
 675         {
 676                 add_duck(duck);
 677                 return duck;
 678         }
 679         return similar;
 680 }
 681
 682 void
 683 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 684 {
 685         std::list<handle<Bezier> >::iterator iter;
 686
 687         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 688         {
 689                 if(*iter==bezier)
 690                 {
 691                         bezier_list_.erase(iter);
 692                         return;
 693                 }
 694         }
 695         synfig::warning("Unable to find bezier to erase!");
 696 }
 697
 698 etl::handle<Duckmatic::Duck>
 699 Duckmatic::last_duck()const
 700 {
 701         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 702         if(iter!=duck_map.end())
 703                 return iter->second;
 704         return 0;
 705 }
 706
 707 etl::handle<Duckmatic::Bezier>
 708 Duckmatic::last_bezier()const
 709 {
 710         return bezier_list_.back();
 711 }
 712
 713
 714 etl::handle<Duckmatic::Duck>
 715 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 716 {
 717         if(radius==0)radius=10000000;
 718
 719         if(type==Duck::TYPE_DEFAULT)
 720                 type=get_type_mask();
 721
 722         Real closest(10000000);
 723         etl::handle<Duck> ret;
 724
 725         DuckMap::const_iterator iter;
 726
 727         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 728         {
 729                 const Duck::Handle& duck(iter->second);
 730
 731                 if(!duck->get_editable())
 732                         continue;
 733                 Real dist((duck->get_trans_point()-point).mag_squared());
 734
 735                 if(duck->get_type()&Duck::TYPE_VERTEX)
 736                         dist*=1.0001;
 737
 738                 if(dist<=closest && !( duck->get_type() && (!(type & duck->get_type())) ) )
 739                 {
 740                         {
 741                                 closest=dist;
 742                                 ret=duck;
 743                         }
 744                 }
 745         }
 746
 747         if(radius==0 || closest<radius*radius)
 748                 return ret;
 749
 750         return 0;
 751 }
 752
 753 etl::handle<Duckmatic::Bezier>
 754 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 755 {
 756         return find_bezier(point,radius,radius,location);
 757 }
 758
 759 etl::handle<Duckmatic::Bezier>
 760 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 761 {
 762         if(radius==0)radius=10000000;
 763         Real closest(10000000);
 764         etl::handle<Bezier> ret;
 765
 766         bezier<Point>   curve;
 767
 768         Real    d,step;
 769         float   time = 0;
 770         float   best_time = 0;
 771
 772         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 773         {
 774                 curve[0] = (*iter)->p1->get_trans_point();
 775                 curve[1] = (*iter)->c1->get_trans_point();
 776                 curve[2] = (*iter)->c2->get_trans_point();
 777                 curve[3] = (*iter)->p2->get_trans_point();
 778                 curve.sync();
 779
 780 #if 0
 781                 // I don't know why this doesn't work
 782                 time=curve.find_closest(pos,6);
 783                 d=((curve(time)-pos).mag_squared());
 784
 785 #else
 786                 //set the step size based on the size of the picture
 787                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 788
 789                 step = d/(2*scale); //want to make the distance between lines happy
 790
 791                 step = max(step,0.01); //100 samples should be plenty
 792                 step = min(step,0.1); //10 is minimum
 793
 794                 d = find_closest(curve,pos,step,&closest,&time);
 795 #endif
 796
 797                 if(d < closest)
 798                 {
 799                         closest = d;
 800                         ret = *iter;
 801                         best_time=time;
 802                 }
 803         }
 804
 805         if(closest < radius*radius)
 806         {
 807                 if(location)
 808                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 809
 810                 return ret;
 811         }
 812
 813         return 0;
 814 }
 815
 816
 817
 818 bool
 819 Duckmatic::save_sketch(const synfig::String& filename)const
 820 {
 821         std::ofstream file(filename.c_str());
 822
 823         if(!file)return false;
 824
 825         file<<"SKETCH"<<endl;
 826
 827         std::list<etl::handle<Stroke> >::const_iterator iter;
 828
 829         for(iter=persistant_stroke_list_.begin();iter!=persistant_stroke_list_.end();++iter)
 830         {
 831                 file<<"C "
 832                         <<(*iter)->color.get_r()<<' '
 833                         <<(*iter)->color.get_g()<<' '
 834                         <<(*iter)->color.get_b()
 835                 <<endl;
 836                 std::list<synfig::Point>::const_iterator viter;
 837                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
 838                 {
 839                         file<<"V "
 840                                 <<(*viter)[0]<<' '
 841                                 <<(*viter)[1]
 842                         <<endl;
 843                 }
 844         }
 845         if(!file)return false;
 846         sketch_filename_=filename;
 847         signal_sketch_saved_();
 848         return true;
 849 }
 850
 851 bool
 852 Duckmatic::load_sketch(const synfig::String& filename)
 853 {
 854         std::ifstream file(filename.c_str());
 855
 856         if(!file)
 857                 return false;
 858
 859         std::string line;
 860         getline(file,line);
 861
 862         if(line!="SKETCH")
 863         {
 864                 synfig::error("Not a sketch");
 865                 return false;
 866         }
 867
 868
 869         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
 870
 871         while(file)
 872         {
 873                 getline(file,line);
 874
 875                 if(line.empty())
 876                         continue;
 877
 878                 switch(line[0])
 879                 {
 880                 case 'C':
 881                 case 'c':
 882                         {
 883                                 stroke_data.spawn();
 884                                 float r,g,b;
 885                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
 886                                 {
 887                                         synfig::warning("Bad color line \"%s\"",line.c_str());
 888                                         r=0;g=0;b=0;
 889                                 }
 890                                 add_persistant_stroke(stroke_data, synfig::Color(r,g,b));
 891                         }
 892                         break;
 893                 case 'V':
 894                 case 'v':
 895                         if(!stroke_data)
 896                         {
 897                                 stroke_data.spawn();
 898                                 add_persistant_stroke(stroke_data, synfig::Color(0,0,0));
 899                         }
 900                         float x,y;
 901                         if(!strscanf(line,"V %f %f",&x, &y))
 902                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
 903                         else
 904                                 stroke_data->push_back(synfig::Vector(x,y));
 905                         break;
 906                 default:
 907                         synfig::warning("Unexpected sketch token '%c'",line[0]);
 908                         break;
 909                 }
 910         }
 911
 912         sketch_filename_=filename;
 913         return true;
 914 }
 915
 916
 917
 918
 919
 920
 921
 922
 923 Duckmatic::Push::Push(Duckmatic *duckmatic_):
 924         duckmatic_(duckmatic_)
 925 {
 926         duck_map=duckmatic_->duck_map;
 927         bezier_list_=duckmatic_->bezier_list_;
 928         duck_data_share_map=duckmatic_->duck_data_share_map;
 929         stroke_list_=duckmatic_->stroke_list_;
 930         duck_dragger_=duckmatic_->duck_dragger_;
 931         needs_restore=true;
 932 }
 933
 934 Duckmatic::Push::~Push()
 935 {
 936         if(needs_restore)
 937                 restore();
 938 }
 939
 940 void
 941 Duckmatic::Push::restore()
 942 {
 943         duckmatic_->duck_map=duck_map;
 944         duckmatic_->bezier_list_=bezier_list_;
 945         duckmatic_->duck_data_share_map=duck_data_share_map;
 946         duckmatic_->stroke_list_=stroke_list_;
 947         duckmatic_->duck_dragger_=duck_dragger_;
 948         needs_restore=false;
 949 }
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959 inline String guid_string(const synfigapp::ValueDesc& x)
 960 {
 961         if(x.parent_is_layer_param())
 962                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
 963         //if(x.is_value_node())
 964                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
 965 }
 966
 967 inline GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
 968 {
 969         GUID ret(0);
 970
 971         if(x.parent_is_layer_param())
 972         {
 973                 ret=x.get_layer()->get_guid()^GUID::hasher(x.get_param_name());
 974         }
 975         else
 976         {
 977                 ret=x.get_value_node()->get_guid();
 978         }
 979
 980         ret^=transform_stack.get_guid();
 981         return ret;
 982 }
 983
 984 /*
 985 Duck::Handle
 986 Duckmatic::create_duck_from(const synfigapp::ValueDesc& value_desc,etl::handle<CanvasView> canvas_view, const synfig::TransformStack& transform_stack, int modifier, synfig::ParamDesc *param_desc)
 987 {
 988         GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(modifier));
 989         etl::handle<Duck> duck=new Duck();
 990
 991         return duck;
 992 }
 993 */
 994
 995 bool
 996 Duckmatic::add_to_ducks(const synfigapp::ValueDesc& value_desc,etl::handle<CanvasView> canvas_view, const synfig::TransformStack& transform_stack, synfig::ParamDesc *param_desc, int multiple)
 997 {
 998         ValueBase::Type type=value_desc.get_value_type();
 999 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
1000         switch(type)
1001         {
1002         case ValueBase::TYPE_REAL:
1003
1004                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1005                 {
1006                         etl::handle<Duck> duck=new Duck();
1007                         duck->set_transform_stack(transform_stack);
1008                         duck->set_radius(true);
1009                         duck->set_type(Duck::TYPE_RADIUS);
1010
1011                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()),0));
1012                         duck->set_name(guid_string(value_desc));
1013                         if(value_desc.is_value_node())
1014                         {
1015                                 // If the ValueNode can be directly manipulated,
1016                                 // then set it as so.
1017                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1018                         }
1019                         else
1020                         {
1021                                 duck->set_editable(true);
1022                         }
1023
1024                         if(param_desc && param_desc!=REAL_COOKIE)
1025                         {
1026                                 if(!param_desc->get_origin().empty())
1027                                 {
1028                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1029                                         /*
1030                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1031                                         */
1032                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1033                                         duck->set_origin(last_duck());
1034                                 }
1035                                 duck->set_scalar(param_desc->get_scalar());
1036                         }
1037
1038                         duck->signal_edited().clear();
1039                         duck->signal_edited().connect(
1040                                 sigc::bind(
1041                                         sigc::mem_fun(
1042                                                 *canvas_view,
1043                                                 &studio::CanvasView::on_duck_changed
1044                                         ),
1045                                         value_desc
1046                                 )
1047                         );
1048                         duck->set_value_desc(value_desc);
1049
1050                         duck->signal_user_click(2).connect(
1051                                 sigc::bind(
1052                                         sigc::bind(
1053                                                 sigc::mem_fun(
1054                                                         *canvas_view,
1055                                                         &studio::CanvasView::popup_param_menu
1056                                                 ),
1057                                                 0.0f
1058                                         ),
1059                                         value_desc
1060                                 )
1061                         );
1062
1063                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1064
1065                         add_duck(duck);
1066
1067                         return true;
1068                 }
1069                 break;
1070
1071         case ValueBase::TYPE_ANGLE:
1072
1073                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1074                 {
1075                         etl::handle<Duck> duck=new Duck();
1076                         duck->set_type(Duck::TYPE_ANGLE);
1077                         duck->set_transform_stack(transform_stack);
1078                         synfig::Angle angle;
1079
1080                         angle=value_desc.get_value(get_time()).get(Angle());
1081                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1082                         duck->set_name(guid_string(value_desc));
1083                         if(value_desc.is_value_node())
1084                         {
1085                                 ValueNode::Handle value_node=value_desc.get_value_node();
1086                                 //duck->set_name(strprintf("%x",value_node.get()));
1087
1088                                 // If the ValueNode can be directly manipulated,
1089                                 // then set it as so.
1090                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1091                         }
1092                         else
1093                         {
1094                                 //angle=(value_desc.get_value().get(Angle()));
1095                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1096                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1097                                 duck->set_editable(true);
1098                         }
1099
1100                         if(param_desc && param_desc!=REAL_COOKIE)
1101                         {
1102                                 if(!param_desc->get_origin().empty())
1103                                 {
1104                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1105                                         /*
1106                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1107                                         */
1108                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1109                                         duck->set_origin(last_duck());
1110                                 }
1111                                 duck->set_scalar(param_desc->get_scalar());
1112                         }
1113
1114                         duck->signal_edited().clear();
1115                         duck->signal_edited().connect(
1116                                 sigc::bind(
1117                                         sigc::mem_fun(
1118                                                 *canvas_view,
1119                                                 &studio::CanvasView::on_duck_changed
1120                                         ),
1121                                         value_desc
1122                                 )
1123                         );
1124                         duck->set_value_desc(value_desc);
1125
1126                         duck->signal_user_click(2).connect(
1127                                 sigc::bind(
1128                                         sigc::bind(
1129                                                 sigc::mem_fun(
1130                                                         *canvas_view,
1131                                                         &studio::CanvasView::popup_param_menu
1132                                                 ),
1133                                                 0.0f
1134                                         ),
1135                                         value_desc
1136                                 )
1137                         );
1138                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1139
1140                         add_duck(duck);
1141
1142                         return true;
1143                 }
1144                 break;
1145
1146         case ValueBase::TYPE_VECTOR:
1147                 {
1148                         etl::handle<Duck> duck=new Duck();
1149                         duck->set_transform_stack(transform_stack);
1150
1151                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1152                         duck->set_name(guid_string(value_desc));
1153                         if(value_desc.is_value_node())
1154                         {
1155                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1156
1157                                 // If the ValueNode can be directly manipulated,
1158                                 // then set it as so.
1159                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1160                         }
1161                         else
1162                         {
1163                                 //duck->set_point(value_desc.get_value().get(Point()));
1164                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1165                                 duck->set_editable(true);
1166                         }
1167
1168                         // If we were passed a parameter description
1169                         if(param_desc)
1170                         {
1171                                 if(!param_desc->get_connect().empty())
1172                                 {
1173                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1174                                         Duck::Handle connect_duck;
1175                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0))!=duck_map.end())
1176                                         {
1177                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0)];
1178                                         }
1179                                         else
1180                                         {
1181                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1182                                                 connect_duck=last_duck();
1183                                         }
1184                                         duck->set_connect_duck(connect_duck);
1185                                 }
1186                                 if(!param_desc->get_box().empty())
1187                                 {
1188                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1189                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1190                                         duck->set_box_duck(last_duck());
1191                                 }
1192
1193                                 // If we have an origin
1194                                 if(!param_desc->get_origin().empty())
1195                                 {
1196                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1197                                         /*
1198                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1199                                         */
1200                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1201                                         duck->set_origin(last_duck());
1202                                         duck->set_type(Duck::TYPE_VERTEX);
1203                                 }
1204                                 else
1205                                         duck->set_type(Duck::TYPE_POSITION);
1206
1207                                 duck->set_scalar(param_desc->get_scalar());
1208                         }
1209                         else
1210                                 duck->set_type(Duck::TYPE_POSITION);
1211
1212
1213                         duck->signal_edited().clear();
1214                         duck->signal_edited().connect(
1215                                 sigc::bind(
1216                                         sigc::mem_fun(
1217                                                 *canvas_view,
1218                                                 &studio::CanvasView::on_duck_changed
1219                                         ),
1220                                         value_desc
1221                                 )
1222                         );
1223                         duck->set_value_desc(value_desc);
1224
1225                         duck->signal_user_click(2).connect(
1226                                 sigc::bind(
1227                                         sigc::bind(
1228                                                 sigc::mem_fun(
1229                                                         *canvas_view,
1230                                                         &studio::CanvasView::popup_param_menu
1231                                                 ),
1232                                                 1.0f
1233                                         ),
1234                                         value_desc
1235                                 )
1236                         );
1237                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1238                         add_duck(duck);
1239
1240                         return true;
1241                 }
1242                 break;
1243 /*      case ValueBase::TYPE_SEGMENT:
1244                 {
1245                         etl::handle<Bezier> bezier(new Bezier());
1246                         ValueNode_Composite::Handle value_node;
1247
1248                         if(value_desc.is_value_node() &&
1249                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1250                         )
1251                         {
1252                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1253                                         return false;
1254                                 bezier->p1=last_duck();
1255                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1256                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1257                                         return false;
1258                                 bezier->c1=last_duck();
1259                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1260                                 bezier->c1->set_origin(bezier->p1);
1261                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1262                                 bezier->c1->set_tangent(true);
1263
1264
1265                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1266                                         return false;
1267                                 bezier->p2=last_duck();
1268                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1269                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1270                                         return false;
1271                                 bezier->c2=last_duck();
1272                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1273                                 bezier->c2->set_origin(bezier->p2);
1274                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1275                                 bezier->c2->set_tangent(true);
1276
1277                                 bezier->signal_user_click(2).connect(
1278                                         sigc::bind(
1279                                                 sigc::mem_fun(
1280                                                         *canvas_view,
1281                                                         &studio::CanvasView::popup_param_menu_bezier
1282                                                 ),
1283                                                 value_desc
1284                                         )
1285                                 );
1286
1287                                 add_bezier(bezier);
1288                         }
1289                         else if(value_desc.get_value().is_valid())
1290                         {
1291                                 Segment segment=value_desc.get_value();
1292                                 etl::handle<Duck> duck_p,duck_c;
1293                                 synfig::String name;
1294                                 if(param_desc)
1295                                 {
1296                                         name=param_desc->get_local_name();
1297                                 }
1298                                 else
1299                                 {
1300                                         name=guid_string(value_desc);
1301                                 }
1302
1303                                 duck_p=new class Duck(segment.p1);
1304                                 duck_p->set_name(name+".P1");
1305                                 duck_p->set_type(Duck::TYPE_VERTEX);
1306                                 add_duck(duck_p);
1307
1308                                 duck_c=new class Duck(segment.t1);
1309                                 duck_c->set_name(name+".T1");
1310                                 duck_c->set_type(Duck::TYPE_TANGENT);
1311                                 add_duck(duck_c);
1312                                 duck_c->set_origin(duck_p);
1313                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1314                                 duck_c->set_tangent(true);
1315
1316                                 bezier->p1=duck_p;
1317                                 bezier->c1=duck_c;
1318
1319                                 duck_p=new class Duck(segment.p2);
1320                                 duck_p->set_name(name+".P2");
1321                                 duck_p->set_type(Duck::TYPE_VERTEX);
1322                                 add_duck(duck_p);
1323
1324                                 duck_c=new class Duck(segment.t2);
1325                                 duck_c->set_type(Duck::TYPE_TANGENT);
1326                                 duck_c->set_name(name+".T2");
1327                                 add_duck(duck_c);
1328                                 duck_c->set_origin(duck_p);
1329                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1330                                 duck_c->set_tangent(true);
1331
1332                                 bezier->p2=duck_p;
1333                                 bezier->c2=duck_c;
1334                                 add_bezier(bezier);
1335                         }
1336
1337                         return true;
1338                 }
1339                 break;
1340 */
1341         case ValueBase::TYPE_BLINEPOINT:
1342         {
1343
1344                 if(value_desc.is_value_node() &&
1345                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())
1346                 )
1347                 {
1348                         ValueNode_Composite::Handle value_node;
1349                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1350
1351
1352                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1353                                 return false;
1354                         etl::handle<Duck> vertex_duck(last_duck());
1355                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1356                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1357                                 return false;
1358                         etl::handle<Duck> t1_duck(last_duck());
1359
1360                         t1_duck->set_origin(vertex_duck);
1361                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1362                         t1_duck->set_tangent(true);
1363
1364                         etl::handle<Duck> t2_duck;
1365
1366                         // If the tangents are split
1367                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1368                         {
1369                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1370                                         return false;
1371                                 t2_duck=last_duck();
1372                                 t2_duck->set_origin(vertex_duck);
1373                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1374                                 t2_duck->set_tangent(true);
1375                         }
1376                         else
1377                         {
1378                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1379                                         return false;
1380                                 t2_duck=last_duck();
1381                                 t2_duck->set_origin(vertex_duck);
1382                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1383                                 t2_duck->set_tangent(true);
1384                         }
1385                         return true;
1386                 }
1387
1388         }
1389         break;
1390         case ValueBase::TYPE_LIST:
1391         {
1392                 // Check for BLine
1393                 if(value_desc.is_value_node() &&
1394                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node())
1395                 )
1396                 {
1397                         ValueNode_BLine::Handle value_node;
1398                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1399
1400                         int i,first=-1;
1401
1402                         etl::handle<Bezier> bezier;
1403                         etl::handle<Duck> first_duck;
1404                         etl::handle<Duck> duck, tduck;
1405
1406                         for(i=0;i<value_node->link_count();i++)
1407                         {
1408                                 float amount(value_node->list[i].amount_at_time(get_time()));
1409                                 if(amount<0.9999f)
1410                                         continue;
1411                                 if(first==-1)first=i;
1412
1413                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1414
1415                                 ValueNode_Composite::Handle vertex_value_node(
1416                                         ValueNode_Composite::Handle::cast_dynamic(
1417                                                 value_node->get_link(i)
1418                                         )
1419                                 );
1420
1421                                 // Add the vertex duck
1422                                 if(vertex_value_node)
1423                                 {
1424                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1425                                         {
1426                                                 duck=last_duck();
1427                                                 if(i==first)
1428                                                         first_duck=duck;
1429                                                 duck->set_type(Duck::TYPE_VERTEX);
1430
1431                                                 duck->signal_user_click(2).clear();
1432                                                 duck->signal_user_click(2).connect(
1433                                                         sigc::bind(
1434                                                                 sigc::bind(
1435                                                                         sigc::mem_fun(
1436                                                                                 *canvas_view,
1437                                                                                 &studio::CanvasView::popup_param_menu
1438                                                                         ),
1439                                                                         1.0f
1440                                                                 ),
1441                                                                 synfigapp::ValueDesc(value_node,i)
1442                                                         )
1443                                                 );
1444                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1445
1446                                                 if(param_desc)
1447                                                 {
1448                                                         if(!param_desc->get_origin().empty())
1449                                                         {
1450                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1451                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1452                                                                 duck->set_origin(last_duck());
1453 /*
1454                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1455                                                                 if(value.same_type_as(synfig::Point()))
1456                                                                         duck->set_origin(value.get(synfig::Point()));
1457 */
1458                                                         }
1459                                                 }
1460                                         }
1461                                         else
1462                                                 return false;
1463                                 }
1464                                 else
1465                                 {
1466                                         duck=new Duck(bline_point.get_vertex());
1467                                         if(i==first)
1468                                                 first_duck=duck;
1469                                         duck->set_transform_stack(transform_stack);
1470                                         duck->set_editable(false);
1471                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1472                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1473
1474                                         duck->set_type(Duck::TYPE_VERTEX);
1475                                         if(param_desc)
1476                                         {
1477                                                 if(!param_desc->get_origin().empty())
1478                                                 {
1479                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1480                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1481                                                                 duck->set_origin(last_duck());
1482 /*
1483                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1484                                                                 if(value.same_type_as(synfig::Point()))
1485                                                                         duck->set_origin(value.get(synfig::Point()));
1486 */
1487                                                 }
1488                                         }
1489                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".v"));
1490                                         duck=add_similar_duck(duck);
1491 //                                      add_duck(duck);
1492                                 }
1493
1494                                 // Add the width duck only if we have a hint of scale
1495                                 if(param_desc && !param_desc->get_hint().empty())
1496                                 {
1497                                         etl::handle<Duck> width;
1498                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1499                                         {
1500                                                 width=last_duck();
1501                                                 width->set_origin(duck);
1502                                                 width->set_type(Duck::TYPE_WIDTH);
1503                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1504                                                 {
1505                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1506                                                         if(value.same_type_as(synfig::Real()))
1507                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1508                                                 }
1509                                         }
1510                                         else
1511                                                 synfig::error("Unable to add width duck!");
1512                                 }
1513
1514                                 if(bezier)
1515                                 {
1516                                         // Add the tangent1 duck
1517                                         if(vertex_value_node)
1518                                         {
1519                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1520                                                         return false;
1521                                                 tduck=last_duck();
1522                                         }
1523                                         else
1524                                         {
1525                                                 tduck=new Duck(bline_point.get_tangent1());
1526                                                 tduck->set_transform_stack(transform_stack);
1527                                                 tduck->set_editable(false);
1528                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1529 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1530                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1531                                                 tduck=add_similar_duck(tduck);
1532 //                                              add_duck(duck);
1533                                         }
1534
1535                                         tduck->set_origin(duck);
1536                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1537                                         tduck->set_tangent(true);
1538
1539                                         bezier->p2=duck;
1540                                         bezier->c2=tduck;
1541
1542                                         bezier->signal_user_click(2).connect(
1543                                                 sigc::bind(
1544                                                         sigc::mem_fun(
1545                                                                 *canvas_view,
1546                                                                 &studio::CanvasView::popup_param_menu_bezier
1547                                                         ),
1548                                                         synfigapp::ValueDesc(value_node,i)
1549                                                 )
1550                                         );
1551
1552                                         duck->signal_user_click(2).clear();
1553                                         duck->signal_user_click(2).connect(
1554                                                 sigc::bind(
1555                                                         sigc::bind(
1556                                                                 sigc::mem_fun(
1557                                                                         *canvas_view,
1558                                                                         &studio::CanvasView::popup_param_menu
1559                                                                 ),
1560                                                                 1.0f
1561                                                         ),
1562                                                         synfigapp::ValueDesc(value_node,i)
1563                                                 )
1564                                         );
1565                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1566
1567                                         add_bezier(bezier);
1568                                         bezier=0;
1569                                 }
1570
1571                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1572                                         continue;
1573
1574                                 bezier=new Bezier();
1575
1576                                 // Add the tangent2 duck
1577                                 if(vertex_value_node)
1578                                 {
1579                                         int i=bline_point.get_split_tangent_flag()?5:4;
1580                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,i),canvas_view,transform_stack,0,2))
1581                                                 return false;
1582                                         tduck=last_duck();
1583                                 }
1584                                 else
1585                                 {
1586                                         if(bline_point.get_split_tangent_flag())
1587                                         {
1588                                                 tduck=new Duck(bline_point.get_tangent2());
1589                                                 tduck->set_transform_stack(transform_stack);
1590                                                 //tduck->set_name(strprintf("%x-tangent2",value_node->get_link(i).get()));
1591                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1592                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t2"));
1593                                         }
1594                                         else
1595                                         {
1596                                                 tduck=new Duck(bline_point.get_tangent1());
1597                                                 tduck->set_transform_stack(transform_stack);
1598                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1599                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1600                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1601                                         }
1602                                         tduck->set_editable(false);
1603                                         tduck=add_similar_duck(tduck);
1604 //                                      add_duck(duck);
1605                                         if(param_desc)
1606                                         {
1607                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1608                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1609                                                                 duck->set_origin(last_duck());
1610 /*
1611                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1612                                                                 if(value.same_type_as(synfig::Point()))
1613                                                                         duck->set_origin(value.get(synfig::Point()));
1614 */
1615 //                                              if(!param_desc->get_origin().empty())
1616 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1617                                         }
1618                                         duck->signal_user_click(2).clear();
1619                                         duck->signal_user_click(2).connect(
1620                                                 sigc::bind(
1621                                                         sigc::bind(
1622                                                                 sigc::mem_fun(
1623                                                                         *canvas_view,
1624                                                                         &studio::CanvasView::popup_param_menu
1625                                                                 ),
1626                                                                 1.0f
1627                                                         ),
1628                                                         synfigapp::ValueDesc(value_node,0)
1629                                                 )
1630                                         );
1631                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,0));
1632
1633                                 }
1634
1635                                 tduck->set_origin(duck);
1636                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1637                                 tduck->set_tangent(true);
1638
1639                                 bezier->p1=duck;
1640                                 bezier->c1=tduck;
1641
1642                         }
1643                         // Loop if necessary
1644                         if(bezier && value_node->get_loop())
1645                         {
1646                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1647
1648                                 ValueNode_Composite::Handle vertex_value_node(
1649                                         ValueNode_Composite::Handle::cast_dynamic(
1650                                                 value_node->get_link(first)
1651                                         )
1652                                 );
1653
1654                                 // Add the vertex duck
1655                                 duck=first_duck;
1656                                 /*
1657                                 if(vertex_value_node)
1658                                 {
1659                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1660                                                 return false;
1661                                         duck=last_duck();
1662                                         if(param_desc)
1663                                         {
1664                                                 if(!param_desc->get_origin().empty())
1665                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1666                                         }
1667                                         duck->set_type(Duck::TYPE_VERTEX);
1668                                 }
1669                                 else
1670                                 {
1671                                         duck=new Duck(bline_point.get_vertex());
1672                                         duck->set_transform_stack(transform_stack);
1673                                         if(param_desc)
1674                                         {
1675                                                 if(!param_desc->get_origin().empty())
1676                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1677                                         }
1678                                         duck->set_editable(false);
1679                                         duck->set_name(strprintf("%x-vertex",value_node->get_link(first).get()));
1680                                         duck->set_type(Duck::TYPE_VERTEX);
1681                                         duck=add_similar_duck(duck);
1682                                 }
1683                                 */
1684
1685                                         // Add the tangent1 duck
1686                                         if(vertex_value_node)
1687                                         {
1688                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1689                                                         return false;
1690                                                 tduck=last_duck();
1691                                         }
1692                                         else
1693                                         {
1694                                                 tduck=new Duck(bline_point.get_tangent1());
1695                                                 tduck->set_transform_stack(transform_stack);
1696                                                 tduck->set_editable(false);
1697                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1698                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1699                                                 tduck=add_similar_duck(tduck);
1700                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1701                                                 //add_duck(duck);
1702                                         }
1703
1704                                         tduck->set_origin(duck);
1705                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1706                                         tduck->set_tangent(true);
1707
1708                                         bezier->p2=duck;
1709                                         bezier->c2=tduck;
1710                                         bezier->signal_user_click(2).connect(
1711                                                 sigc::bind(
1712                                                         sigc::mem_fun(
1713                                                                 *canvas_view,
1714                                                                 &studio::CanvasView::popup_param_menu_bezier
1715                                                         ),
1716                                                         synfigapp::ValueDesc(value_node,first)
1717                                                 )
1718                                         );
1719                                         duck->signal_user_click(2).clear();
1720                                         duck->signal_user_click(2).connect(
1721                                                 sigc::bind(
1722                                                         sigc::bind(
1723                                                                 sigc::mem_fun(
1724                                                                         *canvas_view,
1725                                                                         &studio::CanvasView::popup_param_menu
1726                                                                 ),
1727                                                                 1.0f
1728                                                         ),
1729                                                         synfigapp::ValueDesc(value_node,first)
1730                                                 )
1731                                         );
1732                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1733
1734                                         add_bezier(bezier);
1735                                         bezier=0;
1736
1737                         }
1738                         return true;
1739                 }
1740                 else // Check for DynamicList
1741                 if(value_desc.is_value_node() &&
1742                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node())
1743                 )
1744                 {
1745                         ValueNode_DynamicList::Handle value_node;
1746                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1747                         int i;
1748
1749                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1750                         {
1751                                 Bezier bezier;
1752                                 for(i=0;i<value_node->link_count();i++)
1753                                 {
1754                                         if(!value_node->list[i].status_at_time(get_time()))
1755                                                 continue;
1756                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1757                                                 return false;
1758                                         etl::handle<Duck> duck(last_duck());
1759
1760                                         if(param_desc)
1761                                         {
1762                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1763                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1764                                                                 duck->set_origin(last_duck());
1765 /*
1766                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1767                                                                 if(value.same_type_as(synfig::Point()))
1768                                                                         duck->set_origin(value.get(synfig::Point()));
1769 */
1770 //                                              if(!param_desc->get_origin().empty())
1771 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1772                                         }
1773                                         duck->set_type(Duck::TYPE_VERTEX);
1774                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1775                                         bezier.p2=bezier.c2=duck;
1776
1777                                         if(i>0)
1778                                         {
1779                                                 handle<Bezier> bezier_(new Bezier());
1780                                                 bezier_->p1=bezier.p1;
1781                                                 bezier_->c1=bezier.c1;
1782                                                 bezier_->p2=bezier.p2;
1783                                                 bezier_->c2=bezier.c2;
1784                                                 add_bezier(bezier_);
1785                                                 last_bezier()->signal_user_click(2).connect(
1786                                                         sigc::bind(
1787                                                                 sigc::mem_fun(
1788                                                                         *canvas_view,
1789                                                                         &studio::CanvasView::popup_param_menu_bezier
1790                                                                 ),
1791                                                                 synfigapp::ValueDesc(value_node,i)
1792                                                         )
1793                                                 );
1794                                         }
1795                                 }
1796                         }
1797                         /*else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1798                         {
1799                                 for(i=0;i<value_node->link_count();i++)
1800                                 {
1801                                         if(!value_node->list[i].status_at_time(get_time()))
1802                                                 continue;
1803                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1804                                                 return false;
1805                                 }
1806                         }
1807                         */
1808                         else
1809                                 return false;
1810                 }
1811                 else
1812                 {
1813                         // WRITEME
1814                 }
1815
1816                 return true;
1817         }
1818
1819
1820         break;
1821         default:
1822                 break;
1823         }
1824         return false;
1825 }