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 **      Copyright (c) 2007 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 #include <fstream>
  33 #include <iostream>
  34 #include <algorithm>
  35
  36 #include <ETL/hermite>
  37
  38 #include "duckmatic.h"
  39 #include <synfigapp/value_desc.h>
  40 #include <synfig/general.h>
  41 #include <synfig/paramdesc.h>
  42 #include <synfig/valuenode_timedswap.h>
  43 #include <synfig/valuenode_animated.h>
  44 #include <synfig/valuenode_composite.h>
  45 #include <synfig/valuenode_scale.h>
  46 #include <synfig/valuenode_bline.h>
  47
  48 #include <synfig/curve_helper.h>
  49
  50 #include <sigc++/retype_return.h>
  51 #include <sigc++/retype.h>
  52 #include <sigc++/hide.h>
  53 #include <sigc++/bind.h>
  54
  55 #include "canvasview.h"
  56
  57 #include "onemoment.h"
  58
  59 #endif
  60
  61 /* === U S I N G =========================================================== */
  62
  63 using namespace std;
  64 using namespace etl;
  65 using namespace synfig;
  66 using namespace studio;
  67
  68 /* === M A C R O S ========================================================= */
  69
  70 /* 0.33333333333333333 makes for nice short tangent handles,
  71    1.0 makes them draw as their real length */
  72 #define TANGENT_HANDLE_SCALE 0.33333333333333333
  73
  74 /* leave this alone or the bezier won't lie on top of the bline */
  75 #define TANGENT_BEZIER_SCALE 0.33333333333333333
  76
  77 /* === G L O B A L S ======================================================= */
  78
  79 /* === P R O C E D U R E S ================================================= */
  80
  81 /* === M E T H O D S ======================================================= */
  82
  83 /* === E N T R Y P O I N T ================================================= */
  84
  85 Duckmatic::Duckmatic():
  86         type_mask(Duck::TYPE_ALL-Duck::TYPE_WIDTH),
  87         grid_snap(false),
  88         guide_snap(false),
  89         grid_size(1.0/4.0,1.0/4.0),
  90         show_persistent_strokes(true)
  91 {
  92         axis_lock=false;
  93         drag_offset_=Point(0,0);
  94         clear_duck_dragger();
  95 }
  96
  97 Duckmatic::~Duckmatic()
  98 {
  99         clear_ducks();
 100         //synfig::info("Duckmatic::~Duckmatic(): Deleted. Duck Count=%d",Duck::duck_count);
 101 }
 102
 103 void
 104 Duckmatic::clear_ducks()
 105 {
 106         duck_data_share_map.clear();
 107         duck_map.clear();
 108
 109         //duck_list_.clear();
 110         bezier_list_.clear();
 111         stroke_list_.clear();
 112
 113         if(show_persistent_strokes)
 114                 stroke_list_=persistent_stroke_list_;
 115 }
 116
 117 //! Returns \a true if the given duck is currently selected
 118 bool
 119 Duckmatic::duck_is_selected(const etl::handle<Duck> &duck)const
 120 {
 121         return duck && selected_ducks.count(duck->get_guid());
 122 }
 123
 124 void
 125 Duckmatic::set_grid_size(const synfig::Vector &s)
 126 {
 127         if(grid_size!=s)
 128         {
 129                 grid_size=s;
 130                 signal_grid_changed();
 131         }
 132 }
 133
 134 void
 135 Duckmatic::set_grid_snap(bool x)
 136 {
 137         if(grid_snap!=x)
 138         {
 139                 grid_snap=x;
 140                 signal_grid_changed();
 141         }
 142 }
 143
 144 void
 145 Duckmatic::set_guide_snap(bool x)
 146 {
 147         if(guide_snap!=x)
 148         {
 149                 guide_snap=x;
 150                 signal_grid_changed();
 151         }
 152 }
 153
 154 Duckmatic::GuideList::iterator
 155 Duckmatic::find_guide_x(synfig::Point pos, float radius)
 156 {
 157         GuideList::iterator iter,best(guide_list_x_.end());
 158         float dist(radius);
 159         for(iter=guide_list_x_.begin();iter!=guide_list_x_.end();++iter)
 160         {
 161                 float amount(abs(*iter-pos[0]));
 162                 if(amount<dist)
 163                 {
 164                         dist=amount;
 165                         best=iter;
 166                 }
 167         }
 168         return best;
 169 }
 170
 171 Duckmatic::GuideList::iterator
 172 Duckmatic::find_guide_y(synfig::Point pos, float radius)
 173 {
 174         GuideList::iterator iter,best(guide_list_y_.end());
 175         float dist(radius);
 176         for(iter=guide_list_y_.begin();iter!=guide_list_y_.end();++iter)
 177         {
 178                 float amount(abs(*iter-pos[1]));
 179                 if(amount<=dist)
 180                 {
 181                         dist=amount;
 182                         best=iter;
 183                 }
 184         }
 185         return best;
 186 }
 187
 188 void
 189 Duckmatic::clear_selected_ducks()
 190 {
 191         selected_ducks.clear();
 192         signal_duck_selection_changed_();
 193 }
 194
 195 etl::handle<Duckmatic::Duck>
 196 Duckmatic::get_selected_duck()const
 197 {
 198         if(selected_ducks.empty() || duck_map.empty())
 199                 return 0;
 200         return duck_map.find(*selected_ducks.begin())->second;
 201 }
 202
 203 void
 204 Duckmatic::refresh_selected_ducks()
 205 {
 206 /*
 207         std::set<etl::handle<Duck> >::iterator iter;
 208         std::set<etl::handle<Duck> > new_set;
 209         if(duck_list().empty())
 210         {
 211                 selected_duck_list.clear();
 212                 signal_duck_selection_changed_();
 213                 return;
 214         }
 215
 216         for(iter=selected_duck_list.begin();iter!=selected_duck_list.end();++iter)
 217         {
 218                 etl::handle<Duck> similar(find_similar_duck(*iter));
 219                 if(similar)
 220                 {
 221                         new_set.insert(similar);
 222                 }
 223         }
 224         selected_duck_list=new_set;
 225 */
 226         GUIDSet old_set(selected_ducks);
 227         GUIDSet::const_iterator iter;
 228
 229         for(iter=old_set.begin();iter!=old_set.end();++iter)
 230         {
 231                 if(duck_map.count(*iter)==0)
 232                         selected_ducks.erase(*iter);
 233         }
 234
 235         signal_duck_selection_changed_();
 236 }
 237
 238 bool
 239 Duckmatic::is_duck_group_selectable(const etl::handle<Duck>& x)const
 240 {
 241         const Type type(get_type_mask());
 242
 243         if(( x->get_type() && (!(type & x->get_type())) ) )
 244         {
 245                 return false;
 246         }
 247         if(x->get_value_desc().parent_is_layer_param() && type & Duck::TYPE_POSITION)
 248         {
 249                 Layer::Handle layer(x->get_value_desc().get_layer());
 250                 String layer_name(layer->get_name());
 251                 if(
 252                         layer_name=="outline" ||
 253                         layer_name=="region" ||
 254                         layer_name=="polygon" ||
 255                         layer_name=="curve_gradient"
 256                 )
 257                         return false;
 258                 if((layer_name=="PasteCanvas"|| layer_name=="paste_canvas") &&
 259                    !layer->get_param("children_lock").get(bool()))
 260                         return false;
 261         }
 262         return true;
 263 }
 264
 265 void
 266 Duckmatic::select_all_ducks()
 267 {
 268         DuckMap::const_iterator iter;
 269         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 270                 if(is_duck_group_selectable(iter->second))
 271                         select_duck(iter->second);
 272 }
 273
 274 void
 275 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 276 {
 277         Vector vmin, vmax;
 278         vmin[0]=std::min(tl[0],br[0]);
 279         vmin[1]=std::min(tl[1],br[1]);
 280         vmax[0]=std::max(tl[0],br[0]);
 281         vmax[1]=std::max(tl[1],br[1]);
 282
 283         DuckMap::const_iterator iter;
 284         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 285         {
 286                 Point p(iter->second->get_trans_point());
 287                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 288                    is_duck_group_selectable(iter->second))
 289                         toggle_select_duck(iter->second);
 290         }
 291 }
 292
 293 void
 294 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 295 {
 296         Vector vmin, vmax;
 297         vmin[0]=std::min(tl[0],br[0]);
 298         vmin[1]=std::min(tl[1],br[1]);
 299         vmax[0]=std::max(tl[0],br[0]);
 300         vmax[1]=std::max(tl[1],br[1]);
 301
 302 //      Type type(get_type_mask());
 303
 304         DuckMap::const_iterator iter;
 305         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 306         {
 307                 Point p(iter->second->get_trans_point());
 308                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 309                 {
 310                         if(is_duck_group_selectable(iter->second))
 311                                 select_duck(iter->second);
 312                 }
 313         }
 314 }
 315
 316 int
 317 Duckmatic::count_selected_ducks()const
 318 {
 319         return selected_ducks.size();
 320 }
 321
 322 void
 323 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 324 {
 325         if(duck)
 326         {
 327                 selected_ducks.insert(duck->get_guid());
 328                 signal_duck_selection_changed_();
 329         }
 330 }
 331
 332 DuckList
 333 Duckmatic::get_selected_ducks()const
 334 {
 335         DuckList ret;
 336         GUIDSet::const_iterator iter;
 337         const Type type(get_type_mask());
 338
 339         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 340         {
 341                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 342
 343                 if(d_iter==duck_map.end())
 344                         continue;
 345
 346                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 347                         continue;
 348
 349                 ret.push_back(d_iter->second);
 350         }
 351         return ret;
 352 }
 353
 354 DuckList
 355 Duckmatic::get_duck_list()const
 356 {
 357         DuckList ret;
 358         DuckMap::const_iterator iter;
 359         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 360                 ret.push_back(iter->second);
 361         return ret;
 362 }
 363
 364 void
 365 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 366 {
 367         if(duck && selected_ducks.count(duck->get_guid()))
 368         {
 369                 selected_ducks.erase(duck->get_guid());
 370                 signal_duck_selection_changed_();
 371         }
 372 }
 373
 374 void
 375 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 376 {
 377         if(duck_is_selected(duck))
 378                 unselect_duck(duck);
 379         else
 380                 select_duck(duck);
 381 }
 382
 383 void
 384 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 385 {
 386         if(duck_dragger_)
 387                 duck_dragger_->duck_drag(this,vector);
 388 }
 389
 390 void
 391 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 392 {
 393         if(duck_dragger_)
 394                 duck_dragger_->begin_duck_drag(this,offset);
 395
 396         //drag_offset_=offset;
 397         drag_offset_=find_duck(offset)->get_trans_point();
 398 }
 399
 400 bool
 401 Duckmatic::end_duck_drag()
 402 {
 403         if(duck_dragger_)
 404                 return duck_dragger_->end_duck_drag(this);
 405         return false;
 406 }
 407
 408 Point
 409 Duckmatic::snap_point_to_grid(const Point& x, float radius)const
 410 {
 411         Point ret(x);
 412
 413         GuideList::const_iterator guide_x,guide_y;
 414         bool has_guide_x(false), has_guide_y(false);
 415
 416         guide_x=find_guide_x(ret,radius);
 417         if(guide_x!=guide_list_x_.end())
 418                 has_guide_x=true;
 419
 420         guide_y=find_guide_y(ret,radius);
 421         if(guide_y!=guide_list_y_.end())
 422                 has_guide_y=true;
 423
 424         if(get_grid_snap())
 425         {
 426                 Point snap(
 427                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 428                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]
 429                 );
 430
 431                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 432                         ret[0]=snap[0],has_guide_x=false;
 433                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 434                         ret[1]=snap[1],has_guide_y=false;
 435         }
 436
 437         if(guide_snap)
 438         {
 439                 if(has_guide_x)
 440                         ret[0]=*guide_x;
 441                 if(has_guide_y)
 442                         ret[1]=*guide_y;
 443         }
 444
 445         if(axis_lock)
 446         {
 447                 ret-=drag_offset_;
 448                 if(abs(ret[0])<abs(ret[1]))
 449                         ret[0]=0;
 450                 else
 451                         ret[1]=0;
 452                 ret+=drag_offset_;
 453         }
 454
 455         return ret;
 456 }
 457
 458 void
 459 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 460 {
 461         last_translate_=Vector(0,0);
 462         {
 463                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 464
 465                 snap=Vector(0,0);
 466         }
 467
 468         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 469         DuckList::const_iterator iter;
 470
 471         positions.clear();
 472         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 473         {
 474                 Point p((*iter)->get_trans_point());
 475                 positions.push_back(p);
 476         }
 477 }
 478
 479 bool
 480 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 481 {
 482         if(last_translate_.mag()>0.0001)
 483         {
 484                 duckmatic->signal_edited_selected_ducks();
 485                 return true;
 486         }
 487         else
 488         {
 489                 duckmatic->signal_user_click_selected_ducks(0);
 490                 return false;
 491         }
 492 }
 493
 494 void
 495 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 496 {
 497         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 498         DuckList::const_iterator iter;
 499
 500         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 501         int i;
 502
 503         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 504         {
 505                 if((*iter)->get_type()!=Duck::TYPE_VERTEX &&
 506                    (*iter)->get_type()!=Duck::TYPE_POSITION)
 507                         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 ||
 513                    (*iter)->get_type()==Duck::TYPE_POSITION)
 514                         continue;
 515                 (*iter)->set_trans_point(positions[i]+vect);
 516         }
 517         last_translate_=vect;
 518 }
 519
 520 void
 521 Duckmatic::signal_edited_selected_ducks()
 522 {
 523         const DuckList ducks(get_selected_ducks());
 524         DuckList::const_iterator iter;
 525
 526         synfig::GUIDSet old_set(selected_ducks);
 527
 528         // If we have more than 20 things to move, then display
 529         // something to explain that it may take a moment
 530         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 531
 532         // Go ahead and call everyone's signals
 533         for(iter=ducks.begin();iter!=ducks.end();++iter)
 534         {
 535                 if(!(*iter)->signal_edited()((*iter)->get_point()))
 536                 {
 537                         selected_ducks=old_set;
 538                         throw String("Bad edit");
 539                 }
 540         }
 541         selected_ducks=old_set;
 542 }
 543
 544 void
 545 Duckmatic::signal_user_click_selected_ducks(int button)
 546 {
 547         const DuckList ducks(get_selected_ducks());
 548         DuckList::const_iterator iter;
 549
 550         for(iter=ducks.begin();iter!=ducks.end();++iter)
 551         {
 552                 (*iter)->signal_user_click(button)();
 553         }
 554 }
 555
 556 void
 557 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 558 {
 559         //if(!duck_map.count(duck->get_guid()))
 560         {
 561                 if(duck_data_share_map.count(duck->get_data_guid()))
 562                 {
 563                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 564                 }
 565                 else
 566                 {
 567                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 568                         duck->set_shared_point(point);
 569                         duck_data_share_map[duck->get_data_guid()]=point;
 570                 }
 571
 572                 duck_map.insert(duck);
 573         }
 574
 575         last_duck_guid=duck->get_guid();
 576 }
 577
 578 void
 579 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 580 {
 581         bezier_list_.push_back(bezier);
 582 }
 583
 584 void
 585 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 586 {
 587         assert(stroke_point_list);
 588
 589         std::list<etl::handle<Stroke> >::iterator iter;
 590
 591         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 592         {
 593                 if((*iter)->stroke_data==stroke_point_list)
 594                         return;
 595         }
 596
 597         etl::handle<Stroke> stroke(new Stroke());
 598
 599         stroke->stroke_data=stroke_point_list;
 600         stroke->color=color;
 601
 602         stroke_list_.push_back(stroke);
 603 }
 604
 605 void
 606 Duckmatic::add_persistent_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 607 {
 608         add_stroke(stroke_point_list,color);
 609         persistent_stroke_list_.push_back(stroke_list_.back());
 610 }
 611
 612 void
 613 Duckmatic::clear_persistent_strokes()
 614 {
 615         persistent_stroke_list_.clear();
 616 }
 617
 618 void
 619 Duckmatic::set_show_persistent_strokes(bool x)
 620 {
 621         if(x!=show_persistent_strokes)
 622         {
 623                 show_persistent_strokes=x;
 624                 if(x)
 625                         stroke_list_=persistent_stroke_list_;
 626                 else
 627                         stroke_list_.clear();
 628         }
 629 }
 630
 631 void
 632 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 633 {
 634         duck_map.erase(duck->get_guid());
 635 }
 636
 637 etl::handle<Duckmatic::Duck>
 638 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 639 {
 640         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 641         if(iter!=duck_map.end())
 642                 return iter->second;
 643         return 0;
 644
 645 /*      std::list<handle<Duck> >::reverse_iterator iter;
 646
 647         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 648         {
 649                 if(*iter!=duck && **iter==*duck)
 650                 {
 651                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 652                         return *iter;
 653                 }
 654         }
 655         return 0;
 656 */
 657 }
 658
 659 etl::handle<Duckmatic::Duck>
 660 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 661 {
 662         etl::handle<Duck> similar(find_similar_duck(duck));
 663         if(!similar)
 664         {
 665                 add_duck(duck);
 666                 return duck;
 667         }
 668         return similar;
 669 }
 670
 671 void
 672 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 673 {
 674         std::list<handle<Bezier> >::iterator iter;
 675
 676         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 677         {
 678                 if(*iter==bezier)
 679                 {
 680                         bezier_list_.erase(iter);
 681                         return;
 682                 }
 683         }
 684         synfig::warning("Unable to find bezier to erase!");
 685 }
 686
 687 etl::handle<Duckmatic::Duck>
 688 Duckmatic::last_duck()const
 689 {
 690         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 691         if(iter!=duck_map.end())
 692                 return iter->second;
 693         return 0;
 694 }
 695
 696 etl::handle<Duckmatic::Bezier>
 697 Duckmatic::last_bezier()const
 698 {
 699         return bezier_list_.back();
 700 }
 701
 702 etl::handle<Duckmatic::Duck>
 703 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 704 {
 705         if(radius==0)radius=10000000;
 706
 707         if(type==Duck::TYPE_DEFAULT)
 708                 type=get_type_mask();
 709
 710         Real closest(10000000);
 711         etl::handle<Duck> ret;
 712
 713         DuckMap::const_iterator iter;
 714
 715         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 716         {
 717                 const Duck::Handle& duck(iter->second);
 718
 719                 if(!duck->get_editable())
 720                         continue;
 721                 Real dist((duck->get_trans_point()-point).mag_squared());
 722
 723                 if(duck->get_type()&Duck::TYPE_VERTEX)
 724                         dist*=1.0001;
 725
 726                 if(dist<=closest && !( duck->get_type() && (!(type & duck->get_type())) ) )
 727                 {
 728                         {
 729                                 closest=dist;
 730                                 ret=duck;
 731                         }
 732                 }
 733         }
 734
 735         if(radius==0 || closest<radius*radius)
 736                 return ret;
 737
 738         return 0;
 739 }
 740
 741 etl::handle<Duckmatic::Bezier>
 742 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 743 {
 744         return find_bezier(point,radius,radius,location);
 745 }
 746
 747 etl::handle<Duckmatic::Bezier>
 748 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 749 {
 750         if(radius==0)radius=10000000;
 751         Real closest(10000000);
 752         etl::handle<Bezier> ret;
 753
 754         bezier<Point>   curve;
 755
 756         Real    d,step;
 757         float   time = 0;
 758         float   best_time = 0;
 759
 760         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 761         {
 762                 curve[0] = (*iter)->p1->get_trans_point();
 763                 curve[1] = (*iter)->c1->get_trans_point();
 764                 curve[2] = (*iter)->c2->get_trans_point();
 765                 curve[3] = (*iter)->p2->get_trans_point();
 766                 curve.sync();
 767
 768 #if 0
 769                 // I don't know why this doesn't work
 770                 time=curve.find_closest(pos,6);
 771                 d=((curve(time)-pos).mag_squared());
 772
 773 #else
 774                 //set the step size based on the size of the picture
 775                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 776
 777                 step = d/(2*scale); //want to make the distance between lines happy
 778
 779                 step = max(step,0.01); //100 samples should be plenty
 780                 step = min(step,0.1); //10 is minimum
 781
 782                 d = find_closest(curve,pos,step,&closest,&time);
 783 #endif
 784
 785                 if(d < closest)
 786                 {
 787                         closest = d;
 788                         ret = *iter;
 789                         best_time=time;
 790                 }
 791         }
 792
 793         if(closest < radius*radius)
 794         {
 795                 if(location)
 796                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 797
 798                 return ret;
 799         }
 800
 801         return 0;
 802 }
 803
 804 bool
 805 Duckmatic::save_sketch(const synfig::String& filename)const
 806 {
 807         std::ofstream file(filename.c_str());
 808
 809         if(!file)return false;
 810
 811         file<<"SKETCH"<<endl;
 812
 813         std::list<etl::handle<Stroke> >::const_iterator iter;
 814
 815         for(iter=persistent_stroke_list_.begin();iter!=persistent_stroke_list_.end();++iter)
 816         {
 817                 file<<"C "
 818                         <<(*iter)->color.get_r()<<' '
 819                         <<(*iter)->color.get_g()<<' '
 820                         <<(*iter)->color.get_b()
 821                 <<endl;
 822                 std::list<synfig::Point>::const_iterator viter;
 823                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
 824                 {
 825                         file<<"V "
 826                                 <<(*viter)[0]<<' '
 827                                 <<(*viter)[1]
 828                         <<endl;
 829                 }
 830         }
 831         if(!file)return false;
 832         sketch_filename_=filename;
 833         signal_sketch_saved_();
 834         return true;
 835 }
 836
 837 bool
 838 Duckmatic::load_sketch(const synfig::String& filename)
 839 {
 840         std::ifstream file(filename.c_str());
 841
 842         if(!file)
 843                 return false;
 844
 845         std::string line;
 846         getline(file,line);
 847
 848         if(line!="SKETCH")
 849         {
 850                 synfig::error("Not a sketch");
 851                 return false;
 852         }
 853
 854         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
 855
 856         while(file)
 857         {
 858                 getline(file,line);
 859
 860                 if(line.empty())
 861                         continue;
 862
 863                 switch(line[0])
 864                 {
 865                 case 'C':
 866                 case 'c':
 867                         {
 868                                 stroke_data.spawn();
 869                                 float r,g,b;
 870                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
 871                                 {
 872                                         synfig::warning("Bad color line \"%s\"",line.c_str());
 873                                         r=0;g=0;b=0;
 874                                 }
 875                                 add_persistent_stroke(stroke_data, synfig::Color(r,g,b));
 876                         }
 877                         break;
 878                 case 'V':
 879                 case 'v':
 880                         if(!stroke_data)
 881                         {
 882                                 stroke_data.spawn();
 883                                 add_persistent_stroke(stroke_data, synfig::Color(0,0,0));
 884                         }
 885                         float x,y;
 886                         if(!strscanf(line,"V %f %f",&x, &y))
 887                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
 888                         else
 889                                 stroke_data->push_back(synfig::Vector(x,y));
 890                         break;
 891                 default:
 892                         synfig::warning("Unexpected sketch token '%c'",line[0]);
 893                         break;
 894                 }
 895         }
 896
 897         sketch_filename_=filename;
 898         return true;
 899 }
 900
 901 Duckmatic::Push::Push(Duckmatic *duckmatic_):
 902         duckmatic_(duckmatic_)
 903 {
 904         duck_map=duckmatic_->duck_map;
 905         bezier_list_=duckmatic_->bezier_list_;
 906         duck_data_share_map=duckmatic_->duck_data_share_map;
 907         stroke_list_=duckmatic_->stroke_list_;
 908         duck_dragger_=duckmatic_->duck_dragger_;
 909         needs_restore=true;
 910 }
 911
 912 Duckmatic::Push::~Push()
 913 {
 914         if(needs_restore)
 915                 restore();
 916 }
 917
 918 void
 919 Duckmatic::Push::restore()
 920 {
 921         duckmatic_->duck_map=duck_map;
 922         duckmatic_->bezier_list_=bezier_list_;
 923         duckmatic_->duck_data_share_map=duck_data_share_map;
 924         duckmatic_->stroke_list_=stroke_list_;
 925         duckmatic_->duck_dragger_=duck_dragger_;
 926         needs_restore=false;
 927 }
 928
 929 inline String guid_string(const synfigapp::ValueDesc& x)
 930 {
 931         if(x.parent_is_layer_param())
 932                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
 933         //if(x.is_value_node())
 934                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
 935 }
 936
 937 inline GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
 938 {
 939         GUID ret(0);
 940
 941         if(x.parent_is_layer_param())
 942         {
 943                 ret=x.get_layer()->get_guid()^GUID::hasher(x.get_param_name());
 944         }
 945         else
 946         {
 947                 ret=x.get_value_node()->get_guid();
 948         }
 949
 950         ret^=transform_stack.get_guid();
 951         return ret;
 952 }
 953
 954 /*
 955 Duck::Handle
 956 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)
 957 {
 958         GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(modifier));
 959         etl::handle<Duck> duck=new Duck();
 960
 961         return duck;
 962 }
 963 */
 964
 965 bool
 966 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)
 967 {
 968         ValueBase::Type type=value_desc.get_value_type();
 969 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
 970         switch(type)
 971         {
 972         case ValueBase::TYPE_REAL:
 973
 974                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
 975                 {
 976                         etl::handle<Duck> duck=new Duck();
 977                         duck->set_transform_stack(transform_stack);
 978                         duck->set_radius(true);
 979                         duck->set_type(Duck::TYPE_RADIUS);
 980
 981                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()),0));
 982                         duck->set_name(guid_string(value_desc));
 983                         if(value_desc.is_value_node())
 984                         {
 985                                 // If the ValueNode can be directly manipulated,
 986                                 // then set it as so.
 987                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
 988                         }
 989                         else
 990                         {
 991                                 duck->set_editable(true);
 992                         }
 993
 994                         if(param_desc && param_desc!=REAL_COOKIE)
 995                         {
 996                                 if(!param_desc->get_origin().empty())
 997                                 {
 998                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
 999                                         /*
1000                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1001                                         */
1002                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1003                                         duck->set_origin(last_duck());
1004                                 }
1005                                 duck->set_scalar(param_desc->get_scalar());
1006                         }
1007
1008                         duck->signal_edited().clear();
1009                         duck->signal_edited().connect(
1010                                 sigc::bind(
1011                                         sigc::mem_fun(
1012                                                 *canvas_view,
1013                                                 &studio::CanvasView::on_duck_changed
1014                                         ),
1015                                         value_desc
1016                                 )
1017                         );
1018                         duck->set_value_desc(value_desc);
1019
1020                         duck->signal_user_click(2).connect(
1021                                 sigc::bind(
1022                                         sigc::bind(
1023                                                 sigc::mem_fun(
1024                                                         *canvas_view,
1025                                                         &studio::CanvasView::popup_param_menu
1026                                                 ),
1027                                                 0.0f
1028                                         ),
1029                                         value_desc
1030                                 )
1031                         );
1032
1033                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1034
1035                         add_duck(duck);
1036
1037                         return true;
1038                 }
1039                 break;
1040
1041         case ValueBase::TYPE_ANGLE:
1042
1043                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1044                 {
1045                         etl::handle<Duck> duck=new Duck();
1046                         duck->set_type(Duck::TYPE_ANGLE);
1047                         duck->set_transform_stack(transform_stack);
1048                         synfig::Angle angle;
1049
1050                         angle=value_desc.get_value(get_time()).get(Angle());
1051                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1052                         duck->set_name(guid_string(value_desc));
1053                         if(value_desc.is_value_node())
1054                         {
1055                                 ValueNode::Handle value_node=value_desc.get_value_node();
1056                                 //duck->set_name(strprintf("%x",value_node.get()));
1057
1058                                 // If the ValueNode can be directly manipulated,
1059                                 // then set it as so.
1060                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1061                         }
1062                         else
1063                         {
1064                                 //angle=(value_desc.get_value().get(Angle()));
1065                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1066                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1067                                 duck->set_editable(true);
1068                         }
1069
1070                         if(param_desc && param_desc!=REAL_COOKIE)
1071                         {
1072                                 if(!param_desc->get_origin().empty())
1073                                 {
1074                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1075                                         /*
1076                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1077                                         */
1078                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1079                                         duck->set_origin(last_duck());
1080                                 }
1081                                 duck->set_scalar(param_desc->get_scalar());
1082                         }
1083
1084                         duck->signal_edited().clear();
1085                         duck->signal_edited().connect(
1086                                 sigc::bind(
1087                                         sigc::mem_fun(
1088                                                 *canvas_view,
1089                                                 &studio::CanvasView::on_duck_changed
1090                                         ),
1091                                         value_desc
1092                                 )
1093                         );
1094                         duck->set_value_desc(value_desc);
1095
1096                         duck->signal_user_click(2).connect(
1097                                 sigc::bind(
1098                                         sigc::bind(
1099                                                 sigc::mem_fun(
1100                                                         *canvas_view,
1101                                                         &studio::CanvasView::popup_param_menu
1102                                                 ),
1103                                                 0.0f
1104                                         ),
1105                                         value_desc
1106                                 )
1107                         );
1108                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1109
1110                         add_duck(duck);
1111
1112                         return true;
1113                 }
1114                 break;
1115
1116         case ValueBase::TYPE_VECTOR:
1117                 {
1118                         etl::handle<Duck> duck=new Duck();
1119                         duck->set_transform_stack(transform_stack);
1120
1121                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1122                         duck->set_name(guid_string(value_desc));
1123                         if(value_desc.is_value_node())
1124                         {
1125                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1126
1127                                 // If the ValueNode can be directly manipulated,
1128                                 // then set it as so.
1129                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1130                         }
1131                         else
1132                         {
1133                                 //duck->set_point(value_desc.get_value().get(Point()));
1134                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1135                                 duck->set_editable(true);
1136                         }
1137
1138                         // If we were passed a parameter description
1139                         if(param_desc)
1140                         {
1141                                 if(!param_desc->get_connect().empty())
1142                                 {
1143                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1144                                         Duck::Handle connect_duck;
1145                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0))!=duck_map.end())
1146                                         {
1147                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0)];
1148                                         }
1149                                         else
1150                                         {
1151                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1152                                                 connect_duck=last_duck();
1153                                         }
1154                                         duck->set_connect_duck(connect_duck);
1155                                 }
1156                                 if(!param_desc->get_box().empty())
1157                                 {
1158                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1159                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1160                                         duck->set_box_duck(last_duck());
1161                                 }
1162
1163                                 // If we have an origin
1164                                 if(!param_desc->get_origin().empty())
1165                                 {
1166                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1167                                         /*
1168                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1169                                         */
1170                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1171                                         duck->set_origin(last_duck());
1172                                         duck->set_type(Duck::TYPE_VERTEX);
1173                                 }
1174                                 else
1175                                         duck->set_type(Duck::TYPE_POSITION);
1176
1177                                 duck->set_scalar(param_desc->get_scalar());
1178                         }
1179                         else
1180                                 duck->set_type(Duck::TYPE_POSITION);
1181
1182                         duck->signal_edited().clear();
1183                         duck->signal_edited().connect(
1184                                 sigc::bind(
1185                                         sigc::mem_fun(
1186                                                 *canvas_view,
1187                                                 &studio::CanvasView::on_duck_changed
1188                                         ),
1189                                         value_desc
1190                                 )
1191                         );
1192                         duck->set_value_desc(value_desc);
1193
1194                         duck->signal_user_click(2).connect(
1195                                 sigc::bind(
1196                                         sigc::bind(
1197                                                 sigc::mem_fun(
1198                                                         *canvas_view,
1199                                                         &studio::CanvasView::popup_param_menu
1200                                                 ),
1201                                                 1.0f
1202                                         ),
1203                                         value_desc
1204                                 )
1205                         );
1206                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1207                         add_duck(duck);
1208
1209                         return true;
1210                 }
1211                 break;
1212 /*      case ValueBase::TYPE_SEGMENT:
1213                 {
1214                         etl::handle<Bezier> bezier(new Bezier());
1215                         ValueNode_Composite::Handle value_node;
1216
1217                         if(value_desc.is_value_node() &&
1218                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1219                         )
1220                         {
1221                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1222                                         return false;
1223                                 bezier->p1=last_duck();
1224                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1225                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1226                                         return false;
1227                                 bezier->c1=last_duck();
1228                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1229                                 bezier->c1->set_origin(bezier->p1);
1230                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1231                                 bezier->c1->set_tangent(true);
1232
1233                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1234                                         return false;
1235                                 bezier->p2=last_duck();
1236                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1237                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1238                                         return false;
1239                                 bezier->c2=last_duck();
1240                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1241                                 bezier->c2->set_origin(bezier->p2);
1242                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1243                                 bezier->c2->set_tangent(true);
1244
1245                                 bezier->signal_user_click(2).connect(
1246                                         sigc::bind(
1247                                                 sigc::mem_fun(
1248                                                         *canvas_view,
1249                                                         &studio::CanvasView::popup_param_menu_bezier
1250                                                 ),
1251                                                 value_desc
1252                                         )
1253                                 );
1254
1255                                 add_bezier(bezier);
1256                         }
1257                         else if(value_desc.get_value().is_valid())
1258                         {
1259                                 Segment segment=value_desc.get_value();
1260                                 etl::handle<Duck> duck_p,duck_c;
1261                                 synfig::String name;
1262                                 if(param_desc)
1263                                 {
1264                                         name=param_desc->get_local_name();
1265                                 }
1266                                 else
1267                                 {
1268                                         name=guid_string(value_desc);
1269                                 }
1270
1271                                 duck_p=new class Duck(segment.p1);
1272                                 duck_p->set_name(name+".P1");
1273                                 duck_p->set_type(Duck::TYPE_VERTEX);
1274                                 add_duck(duck_p);
1275
1276                                 duck_c=new class Duck(segment.t1);
1277                                 duck_c->set_name(name+".T1");
1278                                 duck_c->set_type(Duck::TYPE_TANGENT);
1279                                 add_duck(duck_c);
1280                                 duck_c->set_origin(duck_p);
1281                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1282                                 duck_c->set_tangent(true);
1283
1284                                 bezier->p1=duck_p;
1285                                 bezier->c1=duck_c;
1286
1287                                 duck_p=new class Duck(segment.p2);
1288                                 duck_p->set_name(name+".P2");
1289                                 duck_p->set_type(Duck::TYPE_VERTEX);
1290                                 add_duck(duck_p);
1291
1292                                 duck_c=new class Duck(segment.t2);
1293                                 duck_c->set_type(Duck::TYPE_TANGENT);
1294                                 duck_c->set_name(name+".T2");
1295                                 add_duck(duck_c);
1296                                 duck_c->set_origin(duck_p);
1297                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1298                                 duck_c->set_tangent(true);
1299
1300                                 bezier->p2=duck_p;
1301                                 bezier->c2=duck_c;
1302                                 add_bezier(bezier);
1303                         }
1304
1305                         return true;
1306                 }
1307                 break;
1308 */
1309         case ValueBase::TYPE_BLINEPOINT:
1310         {
1311
1312                 if(value_desc.is_value_node() &&
1313                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())
1314                 )
1315                 {
1316                         ValueNode_Composite::Handle value_node;
1317                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1318
1319                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1320                                 return false;
1321                         etl::handle<Duck> vertex_duck(last_duck());
1322                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1323                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1324                                 return false;
1325                         etl::handle<Duck> t1_duck(last_duck());
1326
1327                         t1_duck->set_origin(vertex_duck);
1328                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1329                         t1_duck->set_tangent(true);
1330
1331                         etl::handle<Duck> t2_duck;
1332
1333                         // If the tangents are split
1334                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1335                         {
1336                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1337                                         return false;
1338                                 t2_duck=last_duck();
1339                                 t2_duck->set_origin(vertex_duck);
1340                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1341                                 t2_duck->set_tangent(true);
1342                         }
1343                         else
1344                         {
1345                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1346                                         return false;
1347                                 t2_duck=last_duck();
1348                                 t2_duck->set_origin(vertex_duck);
1349                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1350                                 t2_duck->set_tangent(true);
1351                         }
1352                         return true;
1353                 }
1354
1355         }
1356         break;
1357         case ValueBase::TYPE_LIST:
1358         {
1359                 // Check for BLine
1360                 if(value_desc.is_value_node() &&
1361                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node())
1362                 )
1363                 {
1364                         ValueNode_BLine::Handle value_node;
1365                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1366
1367                         int i,first=-1;
1368
1369                         etl::handle<Bezier> bezier;
1370                         etl::handle<Duck> first_duck;
1371                         etl::handle<Duck> duck, tduck;
1372
1373                         for(i=0;i<value_node->link_count();i++)
1374                         {
1375                                 float amount(value_node->list[i].amount_at_time(get_time()));
1376                                 if(amount<0.9999f)
1377                                         continue;
1378                                 if(first==-1)first=i;
1379
1380                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1381
1382                                 ValueNode_Composite::Handle vertex_value_node(
1383                                         ValueNode_Composite::Handle::cast_dynamic(
1384                                                 value_node->get_link(i)
1385                                         )
1386                                 );
1387
1388                                 // Add the vertex duck
1389                                 if(vertex_value_node)
1390                                 {
1391                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1392                                         {
1393                                                 duck=last_duck();
1394                                                 if(i==first)
1395                                                         first_duck=duck;
1396                                                 duck->set_type(Duck::TYPE_VERTEX);
1397
1398                                                 duck->signal_user_click(2).clear();
1399                                                 duck->signal_user_click(2).connect(
1400                                                         sigc::bind(
1401                                                                 sigc::bind(
1402                                                                         sigc::mem_fun(
1403                                                                                 *canvas_view,
1404                                                                                 &studio::CanvasView::popup_param_menu
1405                                                                         ),
1406                                                                         1.0f
1407                                                                 ),
1408                                                                 synfigapp::ValueDesc(value_node,i)
1409                                                         )
1410                                                 );
1411                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1412
1413                                                 if(param_desc)
1414                                                 {
1415                                                         if(!param_desc->get_origin().empty())
1416                                                         {
1417                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1418                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1419                                                                 duck->set_origin(last_duck());
1420 /*
1421                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1422                                                                 if(value.same_type_as(synfig::Point()))
1423                                                                         duck->set_origin(value.get(synfig::Point()));
1424 */
1425                                                         }
1426                                                 }
1427                                         }
1428                                         else
1429                                                 return false;
1430                                 }
1431                                 else
1432                                 {
1433                                         duck=new Duck(bline_point.get_vertex());
1434                                         if(i==first)
1435                                                 first_duck=duck;
1436                                         duck->set_transform_stack(transform_stack);
1437                                         duck->set_editable(false);
1438                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1439                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1440
1441                                         duck->set_type(Duck::TYPE_VERTEX);
1442                                         if(param_desc)
1443                                         {
1444                                                 if(!param_desc->get_origin().empty())
1445                                                 {
1446                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1447                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1448                                                                 duck->set_origin(last_duck());
1449 /*
1450                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1451                                                                 if(value.same_type_as(synfig::Point()))
1452                                                                         duck->set_origin(value.get(synfig::Point()));
1453 */
1454                                                 }
1455                                         }
1456                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".v"));
1457                                         duck=add_similar_duck(duck);
1458 //                                      add_duck(duck);
1459                                 }
1460
1461                                 // Add the width duck only if we have a hint of scale
1462                                 if(param_desc && !param_desc->get_hint().empty())
1463                                 {
1464                                         etl::handle<Duck> width;
1465                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1466                                         {
1467                                                 width=last_duck();
1468                                                 width->set_origin(duck);
1469                                                 width->set_type(Duck::TYPE_WIDTH);
1470                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1471                                                 {
1472                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1473                                                         if(value.same_type_as(synfig::Real()))
1474                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1475                                                 }
1476                                         }
1477                                         else
1478                                                 synfig::error("Unable to add width duck!");
1479                                 }
1480
1481                                 if(bezier)
1482                                 {
1483                                         // Add the tangent1 duck
1484                                         if(vertex_value_node)
1485                                         {
1486                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1487                                                         return false;
1488                                                 tduck=last_duck();
1489                                         }
1490                                         else
1491                                         {
1492                                                 tduck=new Duck(bline_point.get_tangent1());
1493                                                 tduck->set_transform_stack(transform_stack);
1494                                                 tduck->set_editable(false);
1495                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1496 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1497                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1498                                                 tduck=add_similar_duck(tduck);
1499 //                                              add_duck(duck);
1500                                         }
1501
1502                                         tduck->set_origin(duck);
1503                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1504                                         tduck->set_tangent(true);
1505
1506                                         bezier->p2=duck;
1507                                         bezier->c2=tduck;
1508
1509                                         bezier->signal_user_click(2).connect(
1510                                                 sigc::bind(
1511                                                         sigc::mem_fun(
1512                                                                 *canvas_view,
1513                                                                 &studio::CanvasView::popup_param_menu_bezier
1514                                                         ),
1515                                                         synfigapp::ValueDesc(value_node,i)
1516                                                 )
1517                                         );
1518
1519                                         duck->signal_user_click(2).clear();
1520                                         duck->signal_user_click(2).connect(
1521                                                 sigc::bind(
1522                                                         sigc::bind(
1523                                                                 sigc::mem_fun(
1524                                                                         *canvas_view,
1525                                                                         &studio::CanvasView::popup_param_menu
1526                                                                 ),
1527                                                                 1.0f
1528                                                         ),
1529                                                         synfigapp::ValueDesc(value_node,i)
1530                                                 )
1531                                         );
1532                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1533
1534                                         add_bezier(bezier);
1535                                         bezier=0;
1536                                 }
1537
1538                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1539                                         continue;
1540
1541                                 bezier=new Bezier();
1542
1543                                 // Add the tangent2 duck
1544                                 if(vertex_value_node)
1545                                 {
1546                                         int i=bline_point.get_split_tangent_flag()?5:4;
1547                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,i),canvas_view,transform_stack,0,2))
1548                                                 return false;
1549                                         tduck=last_duck();
1550                                 }
1551                                 else
1552                                 {
1553                                         if(bline_point.get_split_tangent_flag())
1554                                         {
1555                                                 tduck=new Duck(bline_point.get_tangent2());
1556                                                 tduck->set_transform_stack(transform_stack);
1557                                                 //tduck->set_name(strprintf("%x-tangent2",value_node->get_link(i).get()));
1558                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1559                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t2"));
1560                                         }
1561                                         else
1562                                         {
1563                                                 tduck=new Duck(bline_point.get_tangent1());
1564                                                 tduck->set_transform_stack(transform_stack);
1565                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1566                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1567                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1568                                         }
1569                                         tduck->set_editable(false);
1570                                         tduck=add_similar_duck(tduck);
1571 //                                      add_duck(duck);
1572                                         if(param_desc)
1573                                         {
1574                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1575                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1576                                                                 duck->set_origin(last_duck());
1577 /*
1578                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1579                                                                 if(value.same_type_as(synfig::Point()))
1580                                                                         duck->set_origin(value.get(synfig::Point()));
1581 */
1582 //                                              if(!param_desc->get_origin().empty())
1583 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1584                                         }
1585                                         duck->signal_user_click(2).clear();
1586                                         duck->signal_user_click(2).connect(
1587                                                 sigc::bind(
1588                                                         sigc::bind(
1589                                                                 sigc::mem_fun(
1590                                                                         *canvas_view,
1591                                                                         &studio::CanvasView::popup_param_menu
1592                                                                 ),
1593                                                                 1.0f
1594                                                         ),
1595                                                         synfigapp::ValueDesc(value_node,0)
1596                                                 )
1597                                         );
1598                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,0));
1599
1600                                 }
1601
1602                                 tduck->set_origin(duck);
1603                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1604                                 tduck->set_tangent(true);
1605
1606                                 bezier->p1=duck;
1607                                 bezier->c1=tduck;
1608
1609                         }
1610                         // Loop if necessary
1611                         if(bezier && value_node->get_loop())
1612                         {
1613                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1614
1615                                 ValueNode_Composite::Handle vertex_value_node(
1616                                         ValueNode_Composite::Handle::cast_dynamic(
1617                                                 value_node->get_link(first)
1618                                         )
1619                                 );
1620
1621                                 // Add the vertex duck
1622                                 duck=first_duck;
1623                                 /*
1624                                 if(vertex_value_node)
1625                                 {
1626                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1627                                                 return false;
1628                                         duck=last_duck();
1629                                         if(param_desc)
1630                                         {
1631                                                 if(!param_desc->get_origin().empty())
1632                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1633                                         }
1634                                         duck->set_type(Duck::TYPE_VERTEX);
1635                                 }
1636                                 else
1637                                 {
1638                                         duck=new Duck(bline_point.get_vertex());
1639                                         duck->set_transform_stack(transform_stack);
1640                                         if(param_desc)
1641                                         {
1642                                                 if(!param_desc->get_origin().empty())
1643                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1644                                         }
1645                                         duck->set_editable(false);
1646                                         duck->set_name(strprintf("%x-vertex",value_node->get_link(first).get()));
1647                                         duck->set_type(Duck::TYPE_VERTEX);
1648                                         duck=add_similar_duck(duck);
1649                                 }
1650                                 */
1651
1652                                         // Add the tangent1 duck
1653                                         if(vertex_value_node)
1654                                         {
1655                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1656                                                         return false;
1657                                                 tduck=last_duck();
1658                                         }
1659                                         else
1660                                         {
1661                                                 tduck=new Duck(bline_point.get_tangent1());
1662                                                 tduck->set_transform_stack(transform_stack);
1663                                                 tduck->set_editable(false);
1664                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1665                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1666                                                 tduck=add_similar_duck(tduck);
1667                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1668                                                 //add_duck(duck);
1669                                         }
1670
1671                                         tduck->set_origin(duck);
1672                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1673                                         tduck->set_tangent(true);
1674
1675                                         bezier->p2=duck;
1676                                         bezier->c2=tduck;
1677                                         bezier->signal_user_click(2).connect(
1678                                                 sigc::bind(
1679                                                         sigc::mem_fun(
1680                                                                 *canvas_view,
1681                                                                 &studio::CanvasView::popup_param_menu_bezier
1682                                                         ),
1683                                                         synfigapp::ValueDesc(value_node,first)
1684                                                 )
1685                                         );
1686                                         duck->signal_user_click(2).clear();
1687                                         duck->signal_user_click(2).connect(
1688                                                 sigc::bind(
1689                                                         sigc::bind(
1690                                                                 sigc::mem_fun(
1691                                                                         *canvas_view,
1692                                                                         &studio::CanvasView::popup_param_menu
1693                                                                 ),
1694                                                                 1.0f
1695                                                         ),
1696                                                         synfigapp::ValueDesc(value_node,first)
1697                                                 )
1698                                         );
1699                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1700
1701                                         add_bezier(bezier);
1702                                         bezier=0;
1703
1704                         }
1705                         return true;
1706                 }
1707                 else // Check for DynamicList
1708                 if(value_desc.is_value_node() &&
1709                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node())
1710                 )
1711                 {
1712                         ValueNode_DynamicList::Handle value_node;
1713                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1714                         int i;
1715
1716                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1717                         {
1718                                 Bezier bezier;
1719                                 for(i=0;i<value_node->link_count();i++)
1720                                 {
1721                                         if(!value_node->list[i].status_at_time(get_time()))
1722                                                 continue;
1723                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1724                                                 return false;
1725                                         etl::handle<Duck> duck(last_duck());
1726
1727                                         if(param_desc)
1728                                         {
1729                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1730                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1731                                                                 duck->set_origin(last_duck());
1732 /*
1733                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1734                                                                 if(value.same_type_as(synfig::Point()))
1735                                                                         duck->set_origin(value.get(synfig::Point()));
1736 */
1737 //                                              if(!param_desc->get_origin().empty())
1738 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1739                                         }
1740                                         duck->set_type(Duck::TYPE_VERTEX);
1741                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1742                                         bezier.p2=bezier.c2=duck;
1743
1744                                         if(i>0)
1745                                         {
1746                                                 handle<Bezier> bezier_(new Bezier());
1747                                                 bezier_->p1=bezier.p1;
1748                                                 bezier_->c1=bezier.c1;
1749                                                 bezier_->p2=bezier.p2;
1750                                                 bezier_->c2=bezier.c2;
1751                                                 add_bezier(bezier_);
1752                                                 last_bezier()->signal_user_click(2).connect(
1753                                                         sigc::bind(
1754                                                                 sigc::mem_fun(
1755                                                                         *canvas_view,
1756                                                                         &studio::CanvasView::popup_param_menu_bezier
1757                                                                 ),
1758                                                                 synfigapp::ValueDesc(value_node,i)
1759                                                         )
1760                                                 );
1761                                         }
1762                                 }
1763                         }
1764                         /*else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1765                         {
1766                                 for(i=0;i<value_node->link_count();i++)
1767                                 {
1768                                         if(!value_node->list[i].status_at_time(get_time()))
1769                                                 continue;
1770                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1771                                                 return false;
1772                                 }
1773                         }
1774                         */
1775                         else
1776                                 return false;
1777                 }
1778                 else
1779                 {
1780                         // WRITEME
1781                 }
1782
1783                 return true;
1784         }
1785
1786         break;
1787         default:
1788                 break;
1789         }
1790         return false;
1791 }