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