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 #include "general.h"
  60
  61 #endif
  62
  63 /* === U S I N G =========================================================== */
  64
  65 using namespace std;
  66 using namespace etl;
  67 using namespace synfig;
  68 using namespace studio;
  69
  70 /* === M A C R O S ========================================================= */
  71
  72 /* 0.33333333333333333 makes for nice short tangent handles,
  73    1.0 makes them draw as their real length */
  74 #define TANGENT_HANDLE_SCALE 0.33333333333333333
  75
  76 /* leave this alone or the bezier won't lie on top of the bline */
  77 #define TANGENT_BEZIER_SCALE 0.33333333333333333
  78
  79 /* === G L O B A L S ======================================================= */
  80
  81 /* === P R O C E D U R E S ================================================= */
  82
  83 /* === M E T H O D S ======================================================= */
  84
  85 /* === E N T R Y P O I N T ================================================= */
  86
  87 Duckmatic::Duckmatic():
  88         type_mask(Duck::TYPE_ALL-Duck::TYPE_WIDTH),
  89         grid_snap(false),
  90         guide_snap(false),
  91         grid_size(1.0/4.0,1.0/4.0),
  92         show_persistent_strokes(true)
  93 {
  94         axis_lock=false;
  95         drag_offset_=Point(0,0);
  96         clear_duck_dragger();
  97 }
  98
  99 Duckmatic::~Duckmatic()
 100 {
 101         clear_ducks();
 102
 103         if (Duck::duck_count)
 104                 synfig::error("%d ducks not yet deleted!", Duck::duck_count);
 105
 106         if (getenv("SYNFIG_DEBUG_DESTRUCTORS"))
 107                 synfig::info("Duckmatic::~Duckmatic(): Deleted");
 108 }
 109
 110 void
 111 Duckmatic::set_flip_x(bool flip_x)
 112 {
 113         flip_x_ = flip_x;
 114 }
 115
 116 void
 117 Duckmatic::set_flip_y(bool flip_y)
 118 {
 119         flip_y_ = flip_y;
 120 }
 121
 122 void
 123 Duckmatic::clear_ducks()
 124 {
 125         duck_data_share_map.clear();
 126         duck_map.clear();
 127
 128         //duck_list_.clear();
 129         bezier_list_.clear();
 130         stroke_list_.clear();
 131
 132         if(show_persistent_strokes)
 133                 stroke_list_=persistent_stroke_list_;
 134 }
 135
 136 //! Returns \a true if the given duck is currently selected
 137 bool
 138 Duckmatic::duck_is_selected(const etl::handle<Duck> &duck)const
 139 {
 140         return duck && selected_ducks.count(duck->get_guid());
 141 }
 142
 143 void
 144 Duckmatic::set_grid_size(const synfig::Vector &s)
 145 {
 146         if(grid_size!=s)
 147         {
 148                 grid_size=s;
 149                 signal_grid_changed();
 150         }
 151 }
 152
 153 void
 154 Duckmatic::set_grid_snap(bool x)
 155 {
 156         if(grid_snap!=x)
 157         {
 158                 grid_snap=x;
 159                 signal_grid_changed();
 160         }
 161 }
 162
 163 void
 164 Duckmatic::set_guide_snap(bool x)
 165 {
 166         if(guide_snap!=x)
 167         {
 168                 guide_snap=x;
 169                 signal_grid_changed();
 170         }
 171 }
 172
 173 Duckmatic::GuideList::iterator
 174 Duckmatic::find_guide_x(synfig::Point pos, float radius)
 175 {
 176         GuideList::iterator iter,best(guide_list_x_.end());
 177         float dist(radius);
 178         for(iter=guide_list_x_.begin();iter!=guide_list_x_.end();++iter)
 179         {
 180                 float amount(abs(*iter-pos[0]));
 181                 if(amount<dist)
 182                 {
 183                         dist=amount;
 184                         best=iter;
 185                 }
 186         }
 187         return best;
 188 }
 189
 190 Duckmatic::GuideList::iterator
 191 Duckmatic::find_guide_y(synfig::Point pos, float radius)
 192 {
 193         GuideList::iterator iter,best(guide_list_y_.end());
 194         float dist(radius);
 195         for(iter=guide_list_y_.begin();iter!=guide_list_y_.end();++iter)
 196         {
 197                 float amount(abs(*iter-pos[1]));
 198                 if(amount<=dist)
 199                 {
 200                         dist=amount;
 201                         best=iter;
 202                 }
 203         }
 204         return best;
 205 }
 206
 207 void
 208 Duckmatic::clear_selected_ducks()
 209 {
 210         selected_ducks.clear();
 211         signal_duck_selection_changed_();
 212 }
 213
 214 etl::handle<Duckmatic::Duck>
 215 Duckmatic::get_selected_duck()const
 216 {
 217         if(selected_ducks.empty() || duck_map.empty())
 218                 return 0;
 219         return duck_map.find(*selected_ducks.begin())->second;
 220 }
 221
 222 void
 223 Duckmatic::refresh_selected_ducks()
 224 {
 225 /*
 226         std::set<etl::handle<Duck> >::iterator iter;
 227         std::set<etl::handle<Duck> > new_set;
 228         if(duck_list().empty())
 229         {
 230                 selected_duck_list.clear();
 231                 signal_duck_selection_changed_();
 232                 return;
 233         }
 234
 235         for(iter=selected_duck_list.begin();iter!=selected_duck_list.end();++iter)
 236         {
 237                 etl::handle<Duck> similar(find_similar_duck(*iter));
 238                 if(similar)
 239                 {
 240                         new_set.insert(similar);
 241                 }
 242         }
 243         selected_duck_list=new_set;
 244 */
 245         GUIDSet old_set(selected_ducks);
 246         GUIDSet::const_iterator iter;
 247
 248         for(iter=old_set.begin();iter!=old_set.end();++iter)
 249         {
 250                 if(duck_map.count(*iter)==0)
 251                         selected_ducks.erase(*iter);
 252         }
 253
 254         signal_duck_selection_changed_();
 255 }
 256
 257 bool
 258 Duckmatic::is_duck_group_selectable(const etl::handle<Duck>& x)const
 259 {
 260         const Type type(get_type_mask());
 261
 262         if(( x->get_type() && (!(type & x->get_type())) ) )
 263                 return false;
 264
 265         if(x->get_value_desc().parent_is_layer_param() && type & Duck::TYPE_POSITION)
 266         {
 267                 Layer::Handle layer(x->get_value_desc().get_layer());
 268                 String layer_name(layer->get_name());
 269
 270                 if (layer_name == "outline" || layer_name == "region" || layer_name == "plant" ||
 271                         layer_name == "polygon" || layer_name == "curve_gradient")
 272                         return false;
 273
 274                 if((layer_name=="PasteCanvas"|| layer_name=="paste_canvas") &&
 275                    !layer->get_param("children_lock").get(bool()))
 276                         return false;
 277         }
 278         return true;
 279 }
 280
 281 void
 282 Duckmatic::select_all_ducks()
 283 {
 284         DuckMap::const_iterator iter;
 285         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 286                 if(is_duck_group_selectable(iter->second))
 287                         select_duck(iter->second);
 288 }
 289
 290 void
 291 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 292 {
 293         Vector vmin, vmax;
 294         vmin[0]=std::min(tl[0],br[0]);
 295         vmin[1]=std::min(tl[1],br[1]);
 296         vmax[0]=std::max(tl[0],br[0]);
 297         vmax[1]=std::max(tl[1],br[1]);
 298
 299         DuckMap::const_iterator iter;
 300         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 301         {
 302                 Point p(iter->second->get_trans_point());
 303                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 304                    is_duck_group_selectable(iter->second))
 305                         toggle_select_duck(iter->second);
 306         }
 307 }
 308
 309 void
 310 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 311 {
 312         Vector vmin, vmax;
 313         vmin[0]=std::min(tl[0],br[0]);
 314         vmin[1]=std::min(tl[1],br[1]);
 315         vmax[0]=std::max(tl[0],br[0]);
 316         vmax[1]=std::max(tl[1],br[1]);
 317
 318 //      Type type(get_type_mask());
 319
 320         DuckMap::const_iterator iter;
 321         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 322         {
 323                 Point p(iter->second->get_trans_point());
 324                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 325                 {
 326                         if(is_duck_group_selectable(iter->second))
 327                                 select_duck(iter->second);
 328                 }
 329         }
 330 }
 331
 332 int
 333 Duckmatic::count_selected_ducks()const
 334 {
 335         return selected_ducks.size();
 336 }
 337
 338 void
 339 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 340 {
 341         if(duck)
 342         {
 343                 selected_ducks.insert(duck->get_guid());
 344                 signal_duck_selection_changed_();
 345         }
 346 }
 347
 348 DuckList
 349 Duckmatic::get_selected_ducks()const
 350 {
 351         DuckList ret;
 352         GUIDSet::const_iterator iter;
 353         const Type type(get_type_mask());
 354
 355         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 356         {
 357                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 358
 359                 if(d_iter==duck_map.end())
 360                         continue;
 361
 362                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 363                         continue;
 364
 365                 ret.push_back(d_iter->second);
 366         }
 367         return ret;
 368 }
 369
 370 DuckList
 371 Duckmatic::get_duck_list()const
 372 {
 373         DuckList ret;
 374         DuckMap::const_iterator iter;
 375         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 376                 ret.push_back(iter->second);
 377         return ret;
 378 }
 379
 380 void
 381 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 382 {
 383         if(duck && selected_ducks.count(duck->get_guid()))
 384         {
 385                 selected_ducks.erase(duck->get_guid());
 386                 signal_duck_selection_changed_();
 387         }
 388 }
 389
 390 void
 391 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 392 {
 393         if(duck_is_selected(duck))
 394                 unselect_duck(duck);
 395         else
 396                 select_duck(duck);
 397 }
 398
 399 void
 400 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 401 {
 402         if(duck_dragger_)
 403                 duck_dragger_->duck_drag(this,vector);
 404 }
 405
 406 void
 407 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 408 {
 409         if(duck_dragger_)
 410                 duck_dragger_->begin_duck_drag(this,offset);
 411
 412         //drag_offset_=offset;
 413         drag_offset_=find_duck(offset)->get_trans_point();
 414 }
 415
 416 bool
 417 Duckmatic::end_duck_drag()
 418 {
 419         if(duck_dragger_)
 420                 return duck_dragger_->end_duck_drag(this);
 421         return false;
 422 }
 423
 424 Point
 425 Duckmatic::snap_point_to_grid(const synfig::Point& x, float radius)const
 426 {
 427         Point ret(x);
 428
 429         GuideList::const_iterator guide_x,guide_y;
 430         bool has_guide_x(false), has_guide_y(false);
 431
 432         guide_x=find_guide_x(ret,radius);
 433         if(guide_x!=guide_list_x_.end())
 434                 has_guide_x=true;
 435
 436         guide_y=find_guide_y(ret,radius);
 437         if(guide_y!=guide_list_y_.end())
 438                 has_guide_y=true;
 439
 440         if(get_grid_snap())
 441         {
 442                 Point snap(
 443                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 444                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]
 445                 );
 446
 447                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 448                         ret[0]=snap[0],has_guide_x=false;
 449                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 450                         ret[1]=snap[1],has_guide_y=false;
 451         }
 452
 453         if(guide_snap)
 454         {
 455                 if(has_guide_x)
 456                         ret[0]=*guide_x;
 457                 if(has_guide_y)
 458                         ret[1]=*guide_y;
 459         }
 460
 461         if(axis_lock)
 462         {
 463                 ret-=drag_offset_;
 464                 if(abs(ret[0])<abs(ret[1]))
 465                         ret[0]=0;
 466                 else
 467                         ret[1]=0;
 468                 ret+=drag_offset_;
 469         }
 470
 471         return ret;
 472 }
 473
 474 void
 475 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 476 {
 477         last_translate_=Vector(0,0);
 478         {
 479                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 480
 481                 snap=Vector(0,0);
 482         }
 483
 484         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 485         DuckList::const_iterator iter;
 486
 487         positions.clear();
 488         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 489         {
 490                 Point p((*iter)->get_trans_point());
 491                 positions.push_back(p);
 492         }
 493 }
 494
 495 bool
 496 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 497 {
 498         if(last_translate_.mag()>0.0001)
 499         {
 500                 duckmatic->signal_edited_selected_ducks();
 501                 return true;
 502         }
 503         else
 504         {
 505                 duckmatic->signal_user_click_selected_ducks(0);
 506                 return false;
 507         }
 508 }
 509
 510 void
 511 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 512 {
 513         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 514         DuckList::const_iterator iter;
 515
 516         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 517         int i;
 518
 519         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 520         {
 521                 if((*iter)->get_type()!=Duck::TYPE_VERTEX &&
 522                    (*iter)->get_type()!=Duck::TYPE_POSITION)
 523                         continue;
 524                 (*iter)->set_trans_point(positions[i]+vect);
 525         }
 526         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 527         {
 528                 if((*iter)->get_type()==Duck::TYPE_VERTEX ||
 529                    (*iter)->get_type()==Duck::TYPE_POSITION)
 530                         continue;
 531                 (*iter)->set_trans_point(positions[i]+vect);
 532         }
 533         last_translate_=vect;
 534 }
 535
 536 void
 537 Duckmatic::signal_edited_selected_ducks()
 538 {
 539         const DuckList ducks(get_selected_ducks());
 540         DuckList::const_iterator iter;
 541
 542         synfig::GUIDSet old_set(selected_ducks);
 543
 544         // If we have more than 20 things to move, then display
 545         // something to explain that it may take a moment
 546         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 547
 548         // Go ahead and call everyone's signals
 549         for(iter=ducks.begin();iter!=ducks.end();++iter)
 550         {
 551                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 552                 {
 553                         if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 554                         {
 555                                 selected_ducks=old_set;
 556                                 throw String("Bad edit");
 557                         }
 558                 }
 559 #ifdef RESTRICT_RADIUS_DUCKS_TO_ONE_QUARTER
 560                 else if ((*iter)->is_radius())
 561                 {
 562                         Point point((*iter)->get_point());
 563                         bool changed = false;
 564
 565                         if (point[0] * (flip_x_ ? -1 : 1) < 0)
 566                         {
 567                                 point[0] = 0;
 568                                 changed = true;
 569                         }
 570                         if (point[1] * (flip_y_ ? -1 : 1) < 0)
 571                         {
 572                                 point[1] = 0;
 573                                 changed = true;
 574                         }
 575
 576                         if (changed) (*iter)->set_point(point);
 577
 578                         if(!(*iter)->signal_edited()(point))
 579                         {
 580                                 selected_ducks=old_set;
 581                                 throw String("Bad edit");
 582                         }
 583                 }
 584 #endif
 585                 else
 586                 {
 587                         if(!(*iter)->signal_edited()((*iter)->get_point()))
 588                         {
 589                                 selected_ducks=old_set;
 590                                 throw String("Bad edit");
 591                         }
 592                 }
 593         }
 594         selected_ducks=old_set;
 595 }
 596
 597 void
 598 Duckmatic::signal_user_click_selected_ducks(int button)
 599 {
 600         const DuckList ducks(get_selected_ducks());
 601         DuckList::const_iterator iter;
 602
 603         for(iter=ducks.begin();iter!=ducks.end();++iter)
 604         {
 605                 (*iter)->signal_user_click(button)();
 606         }
 607 }
 608
 609 void
 610 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 611 {
 612         //if(!duck_map.count(duck->get_guid()))
 613         {
 614                 if(duck_data_share_map.count(duck->get_data_guid()))
 615                 {
 616                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 617                 }
 618                 else
 619                 {
 620                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 621                         duck->set_shared_point(point);
 622                         duck_data_share_map[duck->get_data_guid()]=point;
 623                 }
 624
 625                 duck_map.insert(duck);
 626         }
 627
 628         last_duck_guid=duck->get_guid();
 629 }
 630
 631 void
 632 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 633 {
 634         bezier_list_.push_back(bezier);
 635 }
 636
 637 void
 638 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 639 {
 640         assert(stroke_point_list);
 641
 642         std::list<etl::handle<Stroke> >::iterator iter;
 643
 644         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 645         {
 646                 if((*iter)->stroke_data==stroke_point_list)
 647                         return;
 648         }
 649
 650         etl::handle<Stroke> stroke(new Stroke());
 651
 652         stroke->stroke_data=stroke_point_list;
 653         stroke->color=color;
 654
 655         stroke_list_.push_back(stroke);
 656 }
 657
 658 void
 659 Duckmatic::add_persistent_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 660 {
 661         add_stroke(stroke_point_list,color);
 662         persistent_stroke_list_.push_back(stroke_list_.back());
 663 }
 664
 665 void
 666 Duckmatic::clear_persistent_strokes()
 667 {
 668         persistent_stroke_list_.clear();
 669 }
 670
 671 void
 672 Duckmatic::set_show_persistent_strokes(bool x)
 673 {
 674         if(x!=show_persistent_strokes)
 675         {
 676                 show_persistent_strokes=x;
 677                 if(x)
 678                         stroke_list_=persistent_stroke_list_;
 679                 else
 680                         stroke_list_.clear();
 681         }
 682 }
 683
 684 void
 685 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 686 {
 687         duck_map.erase(duck->get_guid());
 688 }
 689
 690 etl::handle<Duckmatic::Duck>
 691 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 692 {
 693         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 694         if(iter!=duck_map.end())
 695                 return iter->second;
 696         return 0;
 697
 698 /*      std::list<handle<Duck> >::reverse_iterator iter;
 699
 700         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 701         {
 702                 if(*iter!=duck && **iter==*duck)
 703                 {
 704                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 705                         return *iter;
 706                 }
 707         }
 708         return 0;
 709 */
 710 }
 711
 712 etl::handle<Duckmatic::Duck>
 713 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 714 {
 715         etl::handle<Duck> similar(find_similar_duck(duck));
 716         if(!similar)
 717         {
 718                 add_duck(duck);
 719                 return duck;
 720         }
 721         return similar;
 722 }
 723
 724 void
 725 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 726 {
 727         std::list<handle<Bezier> >::iterator iter;
 728
 729         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 730         {
 731                 if(*iter==bezier)
 732                 {
 733                         bezier_list_.erase(iter);
 734                         return;
 735                 }
 736         }
 737         synfig::warning("Unable to find bezier to erase!");
 738 }
 739
 740 etl::handle<Duckmatic::Duck>
 741 Duckmatic::last_duck()const
 742 {
 743         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 744         if(iter!=duck_map.end())
 745                 return iter->second;
 746         return 0;
 747 }
 748
 749 etl::handle<Duckmatic::Bezier>
 750 Duckmatic::last_bezier()const
 751 {
 752         return bezier_list_.back();
 753 }
 754
 755 etl::handle<Duckmatic::Duck>
 756 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 757 {
 758         if(radius==0)radius=10000000;
 759
 760         if(type==Duck::TYPE_DEFAULT)
 761                 type=get_type_mask();
 762
 763         Real closest(10000000);
 764         etl::handle<Duck> ret;
 765
 766         DuckMap::const_iterator iter;
 767
 768         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 769         {
 770                 const Duck::Handle& duck(iter->second);
 771
 772                 if(!duck->get_editable())
 773                         continue;
 774                 Real dist((duck->get_trans_point()-point).mag_squared());
 775
 776                 if(duck->get_type()&Duck::TYPE_VERTEX)
 777                         dist*=1.0001;
 778
 779                 if(dist<=closest && !( duck->get_type() && (!(type & duck->get_type())) ) )
 780                 {
 781                         {
 782                                 closest=dist;
 783                                 ret=duck;
 784                         }
 785                 }
 786         }
 787
 788         if(radius==0 || closest<radius*radius)
 789                 return ret;
 790
 791         return 0;
 792 }
 793
 794 etl::handle<Duckmatic::Bezier>
 795 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 796 {
 797         return find_bezier(point,radius,radius,location);
 798 }
 799
 800 etl::handle<Duckmatic::Bezier>
 801 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 802 {
 803         if(radius==0)radius=10000000;
 804         Real closest(10000000);
 805         etl::handle<Bezier> ret;
 806
 807         bezier<Point>   curve;
 808
 809         Real    d,step;
 810         float   time = 0;
 811         float   best_time = 0;
 812
 813         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 814         {
 815                 curve[0] = (*iter)->p1->get_trans_point();
 816                 curve[1] = (*iter)->c1->get_trans_point();
 817                 curve[2] = (*iter)->c2->get_trans_point();
 818                 curve[3] = (*iter)->p2->get_trans_point();
 819                 curve.sync();
 820
 821 #if 0
 822                 // I don't know why this doesn't work
 823                 time=curve.find_closest(pos,6);
 824                 d=((curve(time)-pos).mag_squared());
 825
 826 #else
 827                 //set the step size based on the size of the picture
 828                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 829
 830                 step = d/(2*scale); //want to make the distance between lines happy
 831
 832                 step = max(step,0.01); //100 samples should be plenty
 833                 step = min(step,0.1); //10 is minimum
 834
 835                 d = find_closest(curve,pos,step,&closest,&time);
 836 #endif
 837
 838                 if(d < closest)
 839                 {
 840                         closest = d;
 841                         ret = *iter;
 842                         best_time=time;
 843                 }
 844         }
 845
 846         if(closest < radius*radius)
 847         {
 848                 if(location)
 849                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 850
 851                 return ret;
 852         }
 853
 854         return 0;
 855 }
 856
 857 bool
 858 Duckmatic::save_sketch(const synfig::String& filename)const
 859 {
 860         ChangeLocale change_locale(LC_NUMERIC, "C");
 861         std::ofstream file(filename.c_str());
 862
 863         if(!file)return false;
 864
 865         file<<"SKETCH"<<endl;
 866
 867         std::list<etl::handle<Stroke> >::const_iterator iter;
 868
 869         for(iter=persistent_stroke_list_.begin();iter!=persistent_stroke_list_.end();++iter)
 870         {
 871                 file<<"C "
 872                         <<(*iter)->color.get_r()<<' '
 873                         <<(*iter)->color.get_g()<<' '
 874                         <<(*iter)->color.get_b()
 875                 <<endl;
 876                 std::list<synfig::Point>::const_iterator viter;
 877                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
 878                 {
 879                         file<<"V "
 880                                 <<(*viter)[0]<<' '
 881                                 <<(*viter)[1]
 882                         <<endl;
 883                 }
 884         }
 885         if(!file)return false;
 886         sketch_filename_=filename;
 887         signal_sketch_saved_();
 888         return true;
 889 }
 890
 891 bool
 892 Duckmatic::load_sketch(const synfig::String& filename)
 893 {
 894         ChangeLocale change_locale(LC_NUMERIC, "C");
 895         std::ifstream file(filename.c_str());
 896
 897         if(!file)
 898                 return false;
 899
 900         std::string line;
 901         getline(file,line);
 902
 903         if(line!="SKETCH")
 904         {
 905                 synfig::error("Not a sketch");
 906                 return false;
 907         }
 908
 909         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
 910
 911         while(file)
 912         {
 913                 getline(file,line);
 914
 915                 if(line.empty())
 916                         continue;
 917
 918                 switch(line[0])
 919                 {
 920                 case 'C':
 921                 case 'c':
 922                         {
 923                                 stroke_data.spawn();
 924                                 float r,g,b;
 925                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
 926                                 {
 927                                         synfig::warning("Bad color line \"%s\"",line.c_str());
 928                                         r=0;g=0;b=0;
 929                                 }
 930                                 add_persistent_stroke(stroke_data, synfig::Color(r,g,b));
 931                         }
 932                         break;
 933                 case 'V':
 934                 case 'v':
 935                         if(!stroke_data)
 936                         {
 937                                 stroke_data.spawn();
 938                                 add_persistent_stroke(stroke_data, synfig::Color(0,0,0));
 939                         }
 940                         float x,y;
 941                         if(!strscanf(line,"V %f %f",&x, &y))
 942                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
 943                         else
 944                                 stroke_data->push_back(synfig::Vector(x,y));
 945                         break;
 946                 default:
 947                         synfig::warning("Unexpected sketch token '%c'",line[0]);
 948                         break;
 949                 }
 950         }
 951
 952         sketch_filename_=filename;
 953         return true;
 954 }
 955
 956 Duckmatic::Push::Push(Duckmatic *duckmatic_):
 957         duckmatic_(duckmatic_)
 958 {
 959         duck_map=duckmatic_->duck_map;
 960         bezier_list_=duckmatic_->bezier_list_;
 961         duck_data_share_map=duckmatic_->duck_data_share_map;
 962         stroke_list_=duckmatic_->stroke_list_;
 963         duck_dragger_=duckmatic_->duck_dragger_;
 964         needs_restore=true;
 965 }
 966
 967 Duckmatic::Push::~Push()
 968 {
 969         if(needs_restore)
 970                 restore();
 971 }
 972
 973 void
 974 Duckmatic::Push::restore()
 975 {
 976         duckmatic_->duck_map=duck_map;
 977         duckmatic_->bezier_list_=bezier_list_;
 978         duckmatic_->duck_data_share_map=duck_data_share_map;
 979         duckmatic_->stroke_list_=stroke_list_;
 980         duckmatic_->duck_dragger_=duck_dragger_;
 981         needs_restore=false;
 982 }
 983
 984 inline String guid_string(const synfigapp::ValueDesc& x)
 985 {
 986         if(x.parent_is_layer_param())
 987                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
 988         //if(x.is_value_node())
 989                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
 990 }
 991
 992 inline GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
 993 {
 994         GUID ret(0);
 995
 996         if(x.parent_is_layer_param())
 997         {
 998                 ret=x.get_layer()->get_guid()^GUID::hasher(x.get_param_name());
 999         }
1000         else
1001         {
1002                 ret=x.get_value_node()->get_guid();
1003         }
1004
1005         ret^=transform_stack.get_guid();
1006         return ret;
1007 }
1008
1009 /*
1010 Duck::Handle
1011 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)
1012 {
1013         GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(modifier));
1014         etl::handle<Duck> duck=new Duck();
1015
1016         return duck;
1017 }
1018 */
1019
1020 bool
1021 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)
1022 {
1023         ValueBase::Type type=value_desc.get_value_type();
1024 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
1025         switch(type)
1026         {
1027         case ValueBase::TYPE_REAL:
1028
1029                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1030                 {
1031                         etl::handle<Duck> duck=new Duck();
1032                         duck->set_transform_stack(transform_stack);
1033                         duck->set_radius(true);
1034                         duck->set_type(Duck::TYPE_RADIUS);
1035
1036                         // put the duck on the right hand side of the center, whether the display is flipped or not
1037                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()) * (flip_x_ ? -1 : 1), 0));
1038                         duck->set_name(guid_string(value_desc));
1039                         if(value_desc.is_value_node())
1040                         {
1041                                 // If the ValueNode can be directly manipulated,
1042                                 // then set it as so.
1043                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1044                         }
1045                         else
1046                         {
1047                                 duck->set_editable(true);
1048                         }
1049
1050                         if(param_desc && param_desc!=REAL_COOKIE)
1051                         {
1052                                 if(!param_desc->get_origin().empty())
1053                                 {
1054                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1055                                         /*
1056                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1057                                         */
1058                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1059                                         duck->set_origin(last_duck());
1060                                 }
1061                                 duck->set_scalar(param_desc->get_scalar());
1062                         }
1063
1064                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_REAL:
1065                         duck->signal_edited().connect(
1066                                 sigc::bind(
1067                                         sigc::mem_fun(
1068                                                 *canvas_view,
1069                                                 &studio::CanvasView::on_duck_changed
1070                                         ),
1071                                         value_desc
1072                                 )
1073                         );
1074                         duck->set_value_desc(value_desc);
1075
1076                         duck->signal_user_click(2).connect(
1077                                 sigc::bind(
1078                                         sigc::bind(
1079                                                 sigc::mem_fun(
1080                                                         *canvas_view,
1081                                                         &studio::CanvasView::popup_param_menu
1082                                                 ),
1083                                                 0.0f
1084                                         ),
1085                                         value_desc
1086                                 )
1087                         );
1088
1089                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1090
1091                         add_duck(duck);
1092
1093                         return true;
1094                 }
1095                 break;
1096
1097         case ValueBase::TYPE_ANGLE:
1098
1099                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1100                 {
1101                         etl::handle<Duck> duck=new Duck();
1102                         duck->set_type(Duck::TYPE_ANGLE);
1103                         duck->set_transform_stack(transform_stack);
1104                         synfig::Angle angle;
1105
1106                         angle=value_desc.get_value(get_time()).get(Angle());
1107                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1108                         duck->set_name(guid_string(value_desc));
1109                         if(value_desc.is_value_node())
1110                         {
1111                                 ValueNode::Handle value_node=value_desc.get_value_node();
1112                                 //duck->set_name(strprintf("%x",value_node.get()));
1113
1114                                 // If the ValueNode can be directly manipulated,
1115                                 // then set it as so.
1116                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1117                         }
1118                         else
1119                         {
1120                                 //angle=(value_desc.get_value().get(Angle()));
1121                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1122                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1123                                 duck->set_editable(true);
1124                         }
1125
1126                         if(param_desc && param_desc!=REAL_COOKIE)
1127                         {
1128                                 if(!param_desc->get_origin().empty())
1129                                 {
1130                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1131                                         /*
1132                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1133                                         */
1134                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1135                                         duck->set_origin(last_duck());
1136                                 }
1137                                 duck->set_scalar(param_desc->get_scalar());
1138                         }
1139
1140                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_ANGLE:
1141                         duck->signal_edited_angle().clear();
1142                         duck->signal_edited_angle().connect(
1143                                 sigc::bind(
1144                                         sigc::mem_fun(
1145                                                 *canvas_view,
1146                                                 &studio::CanvasView::on_duck_angle_changed
1147                                         ),
1148                                         value_desc
1149                                 )
1150                         );
1151                         duck->set_value_desc(value_desc);
1152
1153                         duck->signal_user_click(2).connect(
1154                                 sigc::bind(
1155                                         sigc::bind(
1156                                                 sigc::mem_fun(
1157                                                         *canvas_view,
1158                                                         &studio::CanvasView::popup_param_menu
1159                                                 ),
1160                                                 0.0f
1161                                         ),
1162                                         value_desc
1163                                 )
1164                         );
1165                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1166
1167                         add_duck(duck);
1168
1169                         return true;
1170                 }
1171                 break;
1172
1173         case ValueBase::TYPE_VECTOR:
1174                 {
1175                         etl::handle<Duck> duck=new Duck();
1176                         duck->set_transform_stack(transform_stack);
1177
1178                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1179                         duck->set_name(guid_string(value_desc));
1180                         if(value_desc.is_value_node())
1181                         {
1182                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1183
1184                                 // If the ValueNode can be directly manipulated,
1185                                 // then set it as so.
1186                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1187                         }
1188                         else
1189                         {
1190                                 //duck->set_point(value_desc.get_value().get(Point()));
1191                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1192                                 duck->set_editable(true);
1193                         }
1194
1195                         // If we were passed a parameter description
1196                         if(param_desc)
1197                         {
1198                                 if(!param_desc->get_connect().empty())
1199                                 {
1200                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1201                                         Duck::Handle connect_duck;
1202                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0))!=duck_map.end())
1203                                         {
1204                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0)];
1205                                         }
1206                                         else
1207                                         {
1208                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1209                                                 connect_duck=last_duck();
1210                                         }
1211                                         duck->set_connect_duck(connect_duck);
1212                                 }
1213                                 if(!param_desc->get_box().empty())
1214                                 {
1215                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1216                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1217                                         duck->set_box_duck(last_duck());
1218                                 }
1219
1220                                 // If we have an origin
1221                                 if(!param_desc->get_origin().empty())
1222                                 {
1223                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1224                                         /*
1225                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1226                                         */
1227                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1228                                         duck->set_origin(last_duck());
1229                                         duck->set_type(Duck::TYPE_VERTEX);
1230                                 }
1231                                 else
1232                                         duck->set_type(Duck::TYPE_POSITION);
1233
1234                                 duck->set_scalar(param_desc->get_scalar());
1235                         }
1236                         else
1237                                 duck->set_type(Duck::TYPE_POSITION);
1238
1239                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_VECTOR:
1240                         duck->signal_edited().connect(
1241                                 sigc::bind(
1242                                         sigc::mem_fun(
1243                                                 *canvas_view,
1244                                                 &studio::CanvasView::on_duck_changed
1245                                         ),
1246                                         value_desc
1247                                 )
1248                         );
1249                         duck->set_value_desc(value_desc);
1250
1251                         duck->signal_user_click(2).connect(
1252                                 sigc::bind(
1253                                         sigc::bind(
1254                                                 sigc::mem_fun(
1255                                                         *canvas_view,
1256                                                         &studio::CanvasView::popup_param_menu
1257                                                 ),
1258                                                 1.0f
1259                                         ),
1260                                         value_desc
1261                                 )
1262                         );
1263                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1264                         add_duck(duck);
1265
1266                         return true;
1267                 }
1268                 break;
1269 /*      case ValueBase::TYPE_SEGMENT:
1270                 {
1271                         etl::handle<Bezier> bezier(new Bezier());
1272                         ValueNode_Composite::Handle value_node;
1273
1274                         if(value_desc.is_value_node() &&
1275                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1276                         )
1277                         {
1278                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1279                                         return false;
1280                                 bezier->p1=last_duck();
1281                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1282                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1283                                         return false;
1284                                 bezier->c1=last_duck();
1285                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1286                                 bezier->c1->set_origin(bezier->p1);
1287                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1288                                 bezier->c1->set_tangent(true);
1289
1290                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1291                                         return false;
1292                                 bezier->p2=last_duck();
1293                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1294                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1295                                         return false;
1296                                 bezier->c2=last_duck();
1297                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1298                                 bezier->c2->set_origin(bezier->p2);
1299                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1300                                 bezier->c2->set_tangent(true);
1301
1302                                 bezier->signal_user_click(2).connect(
1303                                         sigc::bind(
1304                                                 sigc::mem_fun(
1305                                                         *canvas_view,
1306                                                         &studio::CanvasView::popup_param_menu_bezier
1307                                                 ),
1308                                                 value_desc
1309                                         )
1310                                 );
1311
1312                                 add_bezier(bezier);
1313                         }
1314                         else if(value_desc.get_value().is_valid())
1315                         {
1316                                 Segment segment=value_desc.get_value();
1317                                 etl::handle<Duck> duck_p,duck_c;
1318                                 synfig::String name;
1319                                 if(param_desc)
1320                                 {
1321                                         name=param_desc->get_local_name();
1322                                 }
1323                                 else
1324                                 {
1325                                         name=guid_string(value_desc);
1326                                 }
1327
1328                                 duck_p=new class Duck(segment.p1);
1329                                 duck_p->set_name(name+".P1");
1330                                 duck_p->set_type(Duck::TYPE_VERTEX);
1331                                 add_duck(duck_p);
1332
1333                                 duck_c=new class Duck(segment.t1);
1334                                 duck_c->set_name(name+".T1");
1335                                 duck_c->set_type(Duck::TYPE_TANGENT);
1336                                 add_duck(duck_c);
1337                                 duck_c->set_origin(duck_p);
1338                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1339                                 duck_c->set_tangent(true);
1340
1341                                 bezier->p1=duck_p;
1342                                 bezier->c1=duck_c;
1343
1344                                 duck_p=new class Duck(segment.p2);
1345                                 duck_p->set_name(name+".P2");
1346                                 duck_p->set_type(Duck::TYPE_VERTEX);
1347                                 add_duck(duck_p);
1348
1349                                 duck_c=new class Duck(segment.t2);
1350                                 duck_c->set_type(Duck::TYPE_TANGENT);
1351                                 duck_c->set_name(name+".T2");
1352                                 add_duck(duck_c);
1353                                 duck_c->set_origin(duck_p);
1354                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1355                                 duck_c->set_tangent(true);
1356
1357                                 bezier->p2=duck_p;
1358                                 bezier->c2=duck_c;
1359                                 add_bezier(bezier);
1360                         }
1361
1362                         return true;
1363                 }
1364                 break;
1365 */
1366         case ValueBase::TYPE_BLINEPOINT:
1367         {
1368
1369                 if(value_desc.is_value_node() &&
1370                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())
1371                 )
1372                 {
1373                         ValueNode_Composite::Handle value_node;
1374                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1375
1376                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1377                                 return false;
1378                         etl::handle<Duck> vertex_duck(last_duck());
1379                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1380                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1381                                 return false;
1382                         etl::handle<Duck> t1_duck(last_duck());
1383
1384                         t1_duck->set_origin(vertex_duck);
1385                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1386                         t1_duck->set_tangent(true);
1387
1388                         etl::handle<Duck> t2_duck;
1389
1390                         // If the tangents are split
1391                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1392                         {
1393                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1394                                         return false;
1395                                 t2_duck=last_duck();
1396                                 t2_duck->set_origin(vertex_duck);
1397                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1398                                 t2_duck->set_tangent(true);
1399                         }
1400                         else
1401                         {
1402                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1403                                         return false;
1404                                 t2_duck=last_duck();
1405                                 t2_duck->set_origin(vertex_duck);
1406                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1407                                 t2_duck->set_tangent(true);
1408                         }
1409                         return true;
1410                 }
1411
1412         }
1413         break;
1414         case ValueBase::TYPE_LIST:
1415         {
1416                 // Check for BLine
1417                 if(value_desc.is_value_node() &&
1418                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node())
1419                 )
1420                 {
1421                         ValueNode_BLine::Handle value_node;
1422                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1423
1424                         int i,first=-1;
1425
1426                         etl::handle<Bezier> bezier;
1427                         etl::handle<Duck> first_duck;
1428                         etl::handle<Duck> duck, tduck;
1429
1430                         for(i=0;i<value_node->link_count();i++)
1431                         {
1432                                 float amount(value_node->list[i].amount_at_time(get_time()));
1433                                 if(amount<0.9999f)
1434                                         continue;
1435                                 if(first==-1)first=i;
1436
1437                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1438
1439                                 ValueNode_Composite::Handle vertex_value_node(
1440                                         ValueNode_Composite::Handle::cast_dynamic(
1441                                                 value_node->get_link(i)
1442                                         )
1443                                 );
1444
1445                                 // Add the vertex duck
1446                                 if(vertex_value_node)
1447                                 {
1448                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1449                                         {
1450                                                 duck=last_duck();
1451                                                 if(i==first)
1452                                                         first_duck=duck;
1453                                                 duck->set_type(Duck::TYPE_VERTEX);
1454
1455                                                 duck->signal_user_click(2).clear();
1456                                                 duck->signal_user_click(2).connect(
1457                                                         sigc::bind(
1458                                                                 sigc::bind(
1459                                                                         sigc::mem_fun(
1460                                                                                 *canvas_view,
1461                                                                                 &studio::CanvasView::popup_param_menu
1462                                                                         ),
1463                                                                         1.0f
1464                                                                 ),
1465                                                                 synfigapp::ValueDesc(value_node,i)
1466                                                         )
1467                                                 );
1468                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1469
1470                                                 if(param_desc)
1471                                                 {
1472                                                         if(!param_desc->get_origin().empty())
1473                                                         {
1474                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1475                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1476                                                                 duck->set_origin(last_duck());
1477 /*
1478                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1479                                                                 if(value.same_type_as(synfig::Point()))
1480                                                                         duck->set_origin(value.get(synfig::Point()));
1481 */
1482                                                         }
1483                                                 }
1484                                         }
1485                                         else
1486                                                 return false;
1487                                 }
1488                                 else
1489                                 {
1490                                         duck=new Duck(bline_point.get_vertex());
1491                                         if(i==first)
1492                                                 first_duck=duck;
1493                                         duck->set_transform_stack(transform_stack);
1494                                         duck->set_editable(false);
1495                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1496                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1497
1498                                         duck->set_type(Duck::TYPE_VERTEX);
1499                                         if(param_desc)
1500                                         {
1501                                                 if(!param_desc->get_origin().empty())
1502                                                 {
1503                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1504                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1505                                                                 duck->set_origin(last_duck());
1506 /*
1507                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1508                                                                 if(value.same_type_as(synfig::Point()))
1509                                                                         duck->set_origin(value.get(synfig::Point()));
1510 */
1511                                                 }
1512                                         }
1513                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".v"));
1514                                         duck=add_similar_duck(duck);
1515 //                                      add_duck(duck);
1516                                 }
1517
1518                                 // Add the width duck only if we have a hint of scale
1519                                 if(param_desc && !param_desc->get_hint().empty())
1520                                 {
1521                                         etl::handle<Duck> width;
1522                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1523                                         {
1524                                                 width=last_duck();
1525                                                 width->set_origin(duck);
1526                                                 width->set_type(Duck::TYPE_WIDTH);
1527                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1528                                                 {
1529                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1530                                                         if(value.same_type_as(synfig::Real()))
1531                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1532                                                 }
1533                                         }
1534                                         else
1535                                                 synfig::error("Unable to add width duck!");
1536                                 }
1537
1538                                 if(bezier)
1539                                 {
1540                                         // Add the tangent1 duck
1541                                         if(vertex_value_node)
1542                                         {
1543                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1544                                                         return false;
1545                                                 tduck=last_duck();
1546                                         }
1547                                         else
1548                                         {
1549                                                 tduck=new Duck(bline_point.get_tangent1());
1550                                                 tduck->set_transform_stack(transform_stack);
1551                                                 tduck->set_editable(false);
1552                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1553 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1554                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1555                                                 tduck=add_similar_duck(tduck);
1556 //                                              add_duck(duck);
1557                                         }
1558
1559                                         tduck->set_origin(duck);
1560                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1561                                         tduck->set_tangent(true);
1562
1563                                         bezier->p2=duck;
1564                                         bezier->c2=tduck;
1565
1566                                         bezier->signal_user_click(2).connect(
1567                                                 sigc::bind(
1568                                                         sigc::mem_fun(
1569                                                                 *canvas_view,
1570                                                                 &studio::CanvasView::popup_param_menu_bezier
1571                                                         ),
1572                                                         synfigapp::ValueDesc(value_node,i)
1573                                                 )
1574                                         );
1575
1576                                         duck->signal_user_click(2).clear();
1577                                         duck->signal_user_click(2).connect(
1578                                                 sigc::bind(
1579                                                         sigc::bind(
1580                                                                 sigc::mem_fun(
1581                                                                         *canvas_view,
1582                                                                         &studio::CanvasView::popup_param_menu
1583                                                                 ),
1584                                                                 1.0f
1585                                                         ),
1586                                                         synfigapp::ValueDesc(value_node,i)
1587                                                 )
1588                                         );
1589                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1590
1591                                         add_bezier(bezier);
1592                                         bezier=0;
1593                                 }
1594
1595                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1596                                         continue;
1597
1598                                 bezier=new Bezier();
1599
1600                                 // Add the tangent2 duck
1601                                 if(vertex_value_node)
1602                                 {
1603                                         int i=bline_point.get_split_tangent_flag()?5:4;
1604                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,i),canvas_view,transform_stack,0,2))
1605                                                 return false;
1606                                         tduck=last_duck();
1607                                 }
1608                                 else
1609                                 {
1610                                         if(bline_point.get_split_tangent_flag())
1611                                         {
1612                                                 tduck=new Duck(bline_point.get_tangent2());
1613                                                 tduck->set_transform_stack(transform_stack);
1614                                                 //tduck->set_name(strprintf("%x-tangent2",value_node->get_link(i).get()));
1615                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1616                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t2"));
1617                                         }
1618                                         else
1619                                         {
1620                                                 tduck=new Duck(bline_point.get_tangent1());
1621                                                 tduck->set_transform_stack(transform_stack);
1622                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1623                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1624                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1625                                         }
1626                                         tduck->set_editable(false);
1627                                         tduck=add_similar_duck(tduck);
1628 //                                      add_duck(duck);
1629                                         if(param_desc)
1630                                         {
1631                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1632                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1633                                                                 duck->set_origin(last_duck());
1634 /*
1635                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1636                                                                 if(value.same_type_as(synfig::Point()))
1637                                                                         duck->set_origin(value.get(synfig::Point()));
1638 */
1639 //                                              if(!param_desc->get_origin().empty())
1640 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1641                                         }
1642                                         duck->signal_user_click(2).clear();
1643                                         duck->signal_user_click(2).connect(
1644                                                 sigc::bind(
1645                                                         sigc::bind(
1646                                                                 sigc::mem_fun(
1647                                                                         *canvas_view,
1648                                                                         &studio::CanvasView::popup_param_menu
1649                                                                 ),
1650                                                                 1.0f
1651                                                         ),
1652                                                         synfigapp::ValueDesc(value_node,0)
1653                                                 )
1654                                         );
1655                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,0));
1656
1657                                 }
1658
1659                                 tduck->set_origin(duck);
1660                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1661                                 tduck->set_tangent(true);
1662
1663                                 bezier->p1=duck;
1664                                 bezier->c1=tduck;
1665
1666                         }
1667                         // Loop if necessary
1668                         if(bezier && value_node->get_loop())
1669                         {
1670                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1671
1672                                 ValueNode_Composite::Handle vertex_value_node(
1673                                         ValueNode_Composite::Handle::cast_dynamic(
1674                                                 value_node->get_link(first)
1675                                         )
1676                                 );
1677
1678                                 // Add the vertex duck
1679                                 duck=first_duck;
1680                                 /*
1681                                 if(vertex_value_node)
1682                                 {
1683                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1684                                                 return false;
1685                                         duck=last_duck();
1686                                         if(param_desc)
1687                                         {
1688                                                 if(!param_desc->get_origin().empty())
1689                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1690                                         }
1691                                         duck->set_type(Duck::TYPE_VERTEX);
1692                                 }
1693                                 else
1694                                 {
1695                                         duck=new Duck(bline_point.get_vertex());
1696                                         duck->set_transform_stack(transform_stack);
1697                                         if(param_desc)
1698                                         {
1699                                                 if(!param_desc->get_origin().empty())
1700                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1701                                         }
1702                                         duck->set_editable(false);
1703                                         duck->set_name(strprintf("%x-vertex",value_node->get_link(first).get()));
1704                                         duck->set_type(Duck::TYPE_VERTEX);
1705                                         duck=add_similar_duck(duck);
1706                                 }
1707                                 */
1708
1709                                         // Add the tangent1 duck
1710                                         if(vertex_value_node)
1711                                         {
1712                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1713                                                         return false;
1714                                                 tduck=last_duck();
1715                                         }
1716                                         else
1717                                         {
1718                                                 tduck=new Duck(bline_point.get_tangent1());
1719                                                 tduck->set_transform_stack(transform_stack);
1720                                                 tduck->set_editable(false);
1721                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1722                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1723                                                 tduck=add_similar_duck(tduck);
1724                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1725                                                 //add_duck(duck);
1726                                         }
1727
1728                                         tduck->set_origin(duck);
1729                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1730                                         tduck->set_tangent(true);
1731
1732                                         bezier->p2=duck;
1733                                         bezier->c2=tduck;
1734                                         bezier->signal_user_click(2).connect(
1735                                                 sigc::bind(
1736                                                         sigc::mem_fun(
1737                                                                 *canvas_view,
1738                                                                 &studio::CanvasView::popup_param_menu_bezier
1739                                                         ),
1740                                                         synfigapp::ValueDesc(value_node,first)
1741                                                 )
1742                                         );
1743                                         duck->signal_user_click(2).clear();
1744                                         duck->signal_user_click(2).connect(
1745                                                 sigc::bind(
1746                                                         sigc::bind(
1747                                                                 sigc::mem_fun(
1748                                                                         *canvas_view,
1749                                                                         &studio::CanvasView::popup_param_menu
1750                                                                 ),
1751                                                                 1.0f
1752                                                         ),
1753                                                         synfigapp::ValueDesc(value_node,first)
1754                                                 )
1755                                         );
1756                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1757
1758                                         add_bezier(bezier);
1759                                         bezier=0;
1760
1761                         }
1762                         return true;
1763                 }
1764                 else // Check for DynamicList
1765                 if(value_desc.is_value_node() &&
1766                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node())
1767                 )
1768                 {
1769                         ValueNode_DynamicList::Handle value_node;
1770                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1771                         int i;
1772
1773                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1774                         {
1775                                 Bezier bezier;
1776                                 for(i=0;i<value_node->link_count();i++)
1777                                 {
1778                                         if(!value_node->list[i].status_at_time(get_time()))
1779                                                 continue;
1780                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1781                                                 return false;
1782                                         etl::handle<Duck> duck(last_duck());
1783
1784                                         if(param_desc)
1785                                         {
1786                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1787                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1788                                                                 duck->set_origin(last_duck());
1789 /*
1790                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1791                                                                 if(value.same_type_as(synfig::Point()))
1792                                                                         duck->set_origin(value.get(synfig::Point()));
1793 */
1794 //                                              if(!param_desc->get_origin().empty())
1795 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1796                                         }
1797                                         duck->set_type(Duck::TYPE_VERTEX);
1798                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1799                                         bezier.p2=bezier.c2=duck;
1800
1801                                         if(i>0)
1802                                         {
1803                                                 handle<Bezier> bezier_(new Bezier());
1804                                                 bezier_->p1=bezier.p1;
1805                                                 bezier_->c1=bezier.c1;
1806                                                 bezier_->p2=bezier.p2;
1807                                                 bezier_->c2=bezier.c2;
1808                                                 add_bezier(bezier_);
1809                                                 last_bezier()->signal_user_click(2).connect(
1810                                                         sigc::bind(
1811                                                                 sigc::mem_fun(
1812                                                                         *canvas_view,
1813                                                                         &studio::CanvasView::popup_param_menu_bezier
1814                                                                 ),
1815                                                                 synfigapp::ValueDesc(value_node,i)
1816                                                         )
1817                                                 );
1818                                         }
1819                                 }
1820                         }
1821                         /*else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1822                         {
1823                                 for(i=0;i<value_node->link_count();i++)
1824                                 {
1825                                         if(!value_node->list[i].status_at_time(get_time()))
1826                                                 continue;
1827                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1828                                                 return false;
1829                                 }
1830                         }
1831                         */
1832                         else
1833                                 return false;
1834                 }
1835                 else
1836                 {
1837                         // WRITEME
1838                 }
1839
1840                 return true;
1841         }
1842
1843         break;
1844         default:
1845                 break;
1846         }
1847         return false;
1848 }