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, 2008 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32 #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                  !x->get_editable()))
 264                 return false;
 265
 266         if(x->get_value_desc().parent_is_layer_param() && type & Duck::TYPE_POSITION)
 267         {
 268                 Layer::Handle layer(x->get_value_desc().get_layer());
 269                 String layer_name(layer->get_name());
 270
 271                 if (layer_name == "outline" || layer_name == "region" || layer_name == "plant" ||
 272                         layer_name == "polygon" || layer_name == "curve_gradient")
 273                         return false;
 274
 275                 if((layer_name=="PasteCanvas"|| layer_name=="paste_canvas") &&
 276                    !layer->get_param("children_lock").get(bool()))
 277                         return false;
 278         }
 279         return true;
 280 }
 281
 282 void
 283 Duckmatic::select_all_ducks()
 284 {
 285         DuckMap::const_iterator iter;
 286         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 287                 if(is_duck_group_selectable(iter->second))
 288                         select_duck(iter->second);
 289                 else
 290                         unselect_duck(iter->second);
 291 }
 292
 293 void
 294 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 295 {
 296         Vector vmin, vmax;
 297         vmin[0]=std::min(tl[0],br[0]);
 298         vmin[1]=std::min(tl[1],br[1]);
 299         vmax[0]=std::max(tl[0],br[0]);
 300         vmax[1]=std::max(tl[1],br[1]);
 301
 302         DuckMap::const_iterator iter;
 303         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 304         {
 305                 Point p(iter->second->get_trans_point());
 306                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 307                    is_duck_group_selectable(iter->second))
 308                         toggle_select_duck(iter->second);
 309         }
 310 }
 311
 312 void
 313 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 314 {
 315         Vector vmin, vmax;
 316         vmin[0]=std::min(tl[0],br[0]);
 317         vmin[1]=std::min(tl[1],br[1]);
 318         vmax[0]=std::max(tl[0],br[0]);
 319         vmax[1]=std::max(tl[1],br[1]);
 320
 321 //      Type type(get_type_mask());
 322
 323         DuckMap::const_iterator iter;
 324         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 325         {
 326                 Point p(iter->second->get_trans_point());
 327                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 328                 {
 329                         if(is_duck_group_selectable(iter->second))
 330                                 select_duck(iter->second);
 331                 }
 332         }
 333 }
 334
 335 int
 336 Duckmatic::count_selected_ducks()const
 337 {
 338         return selected_ducks.size();
 339 }
 340
 341 void
 342 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 343 {
 344         if(duck)
 345         {
 346                 selected_ducks.insert(duck->get_guid());
 347                 signal_duck_selection_changed_();
 348         }
 349 }
 350
 351 DuckList
 352 Duckmatic::get_selected_ducks()const
 353 {
 354         DuckList ret;
 355         GUIDSet::const_iterator iter;
 356         const Type type(get_type_mask());
 357
 358         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 359         {
 360                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 361
 362                 if(d_iter==duck_map.end())
 363                         continue;
 364
 365                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 366                         continue;
 367
 368                 ret.push_back(d_iter->second);
 369         }
 370         return ret;
 371 }
 372
 373 DuckList
 374 Duckmatic::get_duck_list()const
 375 {
 376         DuckList ret;
 377         DuckMap::const_iterator iter;
 378         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 379                 ret.push_back(iter->second);
 380         return ret;
 381 }
 382
 383 void
 384 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 385 {
 386         if(duck && selected_ducks.count(duck->get_guid()))
 387         {
 388                 selected_ducks.erase(duck->get_guid());
 389                 signal_duck_selection_changed_();
 390         }
 391 }
 392
 393 void
 394 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 395 {
 396         if(duck_is_selected(duck))
 397                 unselect_duck(duck);
 398         else
 399                 select_duck(duck);
 400 }
 401
 402 void
 403 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 404 {
 405         if(duck_dragger_)
 406                 duck_dragger_->duck_drag(this,vector);
 407 }
 408
 409 void
 410 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 411 {
 412         if(duck_dragger_)
 413                 duck_dragger_->begin_duck_drag(this,offset);
 414
 415         //drag_offset_=offset;
 416         drag_offset_=find_duck(offset)->get_trans_point();
 417 }
 418
 419 bool
 420 Duckmatic::end_duck_drag()
 421 {
 422         if(duck_dragger_)
 423                 return duck_dragger_->end_duck_drag(this);
 424         return false;
 425 }
 426
 427 Point
 428 Duckmatic::snap_point_to_grid(const synfig::Point& x, float radius)const
 429 {
 430         Point ret(x);
 431
 432         GuideList::const_iterator guide_x,guide_y;
 433         bool has_guide_x(false), has_guide_y(false);
 434
 435         guide_x=find_guide_x(ret,radius);
 436         if(guide_x!=guide_list_x_.end())
 437                 has_guide_x=true;
 438
 439         guide_y=find_guide_y(ret,radius);
 440         if(guide_y!=guide_list_y_.end())
 441                 has_guide_y=true;
 442
 443         if(get_grid_snap())
 444         {
 445                 Point snap(
 446                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 447                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]);
 448
 449                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 450                         ret[0]=snap[0],has_guide_x=false;
 451                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 452                         ret[1]=snap[1],has_guide_y=false;
 453         }
 454
 455         if(guide_snap)
 456         {
 457                 if(has_guide_x)
 458                         ret[0]=*guide_x;
 459                 if(has_guide_y)
 460                         ret[1]=*guide_y;
 461         }
 462
 463         if(axis_lock)
 464         {
 465                 ret-=drag_offset_;
 466                 if(abs(ret[0])<abs(ret[1]))
 467                         ret[0]=0;
 468                 else
 469                         ret[1]=0;
 470                 ret+=drag_offset_;
 471         }
 472
 473         return ret;
 474 }
 475
 476 void
 477 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 478 {
 479         last_translate_=Vector(0,0);
 480         {
 481                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 482
 483                 snap=Vector(0,0);
 484         }
 485
 486         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 487         DuckList::const_iterator iter;
 488
 489         positions.clear();
 490         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 491         {
 492                 Point p((*iter)->get_trans_point());
 493                 positions.push_back(p);
 494         }
 495 }
 496
 497 bool
 498 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 499 {
 500         if(last_translate_.mag()>0.0001)
 501         {
 502                 duckmatic->signal_edited_selected_ducks();
 503                 return true;
 504         }
 505         else
 506         {
 507                 duckmatic->signal_user_click_selected_ducks(0);
 508                 return false;
 509         }
 510 }
 511
 512 void
 513 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 514 {
 515         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 516         DuckList::const_iterator iter;
 517
 518         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 519         int i;
 520
 521         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 522         {
 523                 if((*iter)->get_type()!=Duck::TYPE_VERTEX &&
 524                    (*iter)->get_type()!=Duck::TYPE_POSITION)
 525                         continue;
 526                 (*iter)->set_trans_point(positions[i]+vect);
 527         }
 528         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 529         {
 530                 if((*iter)->get_type()==Duck::TYPE_VERTEX ||
 531                    (*iter)->get_type()==Duck::TYPE_POSITION)
 532                         continue;
 533                 (*iter)->set_trans_point(positions[i]+vect);
 534         }
 535         last_translate_=vect;
 536 }
 537
 538 void
 539 Duckmatic::signal_edited_selected_ducks()
 540 {
 541         const DuckList ducks(get_selected_ducks());
 542         DuckList::const_iterator iter;
 543
 544         synfig::GUIDSet old_set(selected_ducks);
 545
 546         // If we have more than 20 things to move, then display
 547         // something to explain that it may take a moment
 548         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 549
 550         // Go ahead and call everyone's signals
 551         for(iter=ducks.begin();iter!=ducks.end();++iter)
 552         {
 553                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 554                 {
 555                         if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 556                         {
 557                                 selected_ducks=old_set;
 558                                 throw String("Bad edit");
 559                         }
 560                 }
 561                 else if (App::restrict_radius_ducks &&
 562                                  (*iter)->is_radius())
 563                 {
 564                         Point point((*iter)->get_point());
 565                         bool changed = false;
 566
 567                         if (point[0] * (flip_x_ ? -1 : 1) < 0)
 568                         {
 569                                 point[0] = 0;
 570                                 changed = true;
 571                         }
 572                         if (point[1] * (flip_y_ ? -1 : 1) < 0)
 573                         {
 574                                 point[1] = 0;
 575                                 changed = true;
 576                         }
 577
 578                         if (changed) (*iter)->set_point(point);
 579
 580                         if(!(*iter)->signal_edited()(point))
 581                         {
 582                                 selected_ducks=old_set;
 583                                 throw String("Bad edit");
 584                         }
 585                 }
 586                 else
 587                 {
 588                         if(!(*iter)->signal_edited()((*iter)->get_point()))
 589                         {
 590                                 selected_ducks=old_set;
 591                                 throw String("Bad edit");
 592                         }
 593                 }
 594         }
 595         selected_ducks=old_set;
 596 }
 597
 598 void
 599 Duckmatic::signal_user_click_selected_ducks(int button)
 600 {
 601         const DuckList ducks(get_selected_ducks());
 602         DuckList::const_iterator iter;
 603
 604         for(iter=ducks.begin();iter!=ducks.end();++iter)
 605         {
 606                 (*iter)->signal_user_click(button)();
 607         }
 608 }
 609
 610 void
 611 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 612 {
 613         //if(!duck_map.count(duck->get_guid()))
 614         {
 615                 if(duck_data_share_map.count(duck->get_data_guid()))
 616                 {
 617                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 618                 }
 619                 else
 620                 {
 621                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 622                         duck->set_shared_point(point);
 623                         duck_data_share_map[duck->get_data_guid()]=point;
 624                 }
 625
 626                 duck_map.insert(duck);
 627         }
 628
 629         last_duck_guid=duck->get_guid();
 630 }
 631
 632 void
 633 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 634 {
 635         bezier_list_.push_back(bezier);
 636 }
 637
 638 void
 639 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 640 {
 641         assert(stroke_point_list);
 642
 643         std::list<etl::handle<Stroke> >::iterator iter;
 644
 645         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 646         {
 647                 if((*iter)->stroke_data==stroke_point_list)
 648                         return;
 649         }
 650
 651         etl::handle<Stroke> stroke(new Stroke());
 652
 653         stroke->stroke_data=stroke_point_list;
 654         stroke->color=color;
 655
 656         stroke_list_.push_back(stroke);
 657 }
 658
 659 void
 660 Duckmatic::add_persistent_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 661 {
 662         add_stroke(stroke_point_list,color);
 663         persistent_stroke_list_.push_back(stroke_list_.back());
 664 }
 665
 666 void
 667 Duckmatic::clear_persistent_strokes()
 668 {
 669         persistent_stroke_list_.clear();
 670 }
 671
 672 void
 673 Duckmatic::set_show_persistent_strokes(bool x)
 674 {
 675         if(x!=show_persistent_strokes)
 676         {
 677                 show_persistent_strokes=x;
 678                 if(x)
 679                         stroke_list_=persistent_stroke_list_;
 680                 else
 681                         stroke_list_.clear();
 682         }
 683 }
 684
 685 void
 686 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 687 {
 688         duck_map.erase(duck->get_guid());
 689 }
 690
 691 etl::handle<Duckmatic::Duck>
 692 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 693 {
 694         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 695         if(iter!=duck_map.end())
 696                 return iter->second;
 697         return 0;
 698
 699 /*      std::list<handle<Duck> >::reverse_iterator iter;
 700
 701         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 702         {
 703                 if(*iter!=duck && **iter==*duck)
 704                 {
 705                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 706                         return *iter;
 707                 }
 708         }
 709         return 0;
 710 */
 711 }
 712
 713 etl::handle<Duckmatic::Duck>
 714 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 715 {
 716         etl::handle<Duck> similar(find_similar_duck(duck));
 717         if(!similar)
 718         {
 719                 add_duck(duck);
 720                 return duck;
 721         }
 722         return similar;
 723 }
 724
 725 void
 726 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 727 {
 728         std::list<handle<Bezier> >::iterator iter;
 729
 730         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 731         {
 732                 if(*iter==bezier)
 733                 {
 734                         bezier_list_.erase(iter);
 735                         return;
 736                 }
 737         }
 738         synfig::warning("Unable to find bezier to erase!");
 739 }
 740
 741 etl::handle<Duckmatic::Duck>
 742 Duckmatic::last_duck()const
 743 {
 744         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 745         if(iter!=duck_map.end())
 746                 return iter->second;
 747         return 0;
 748 }
 749
 750 etl::handle<Duckmatic::Bezier>
 751 Duckmatic::last_bezier()const
 752 {
 753         return bezier_list_.back();
 754 }
 755
 756 etl::handle<Duckmatic::Duck>
 757 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 758 {
 759         if(radius==0)radius=10000000;
 760
 761         if(type==Duck::TYPE_DEFAULT)
 762                 type=get_type_mask();
 763
 764         Real closest(10000000);
 765         etl::handle<Duck> ret;
 766
 767         DuckMap::const_iterator iter;
 768
 769         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 770         {
 771                 const Duck::Handle& duck(iter->second);
 772
 773                 if(duck->get_ignore())
 774                         continue;
 775                 Real dist((duck->get_trans_point()-point).mag_squared());
 776
 777                 if(duck->get_type()&Duck::TYPE_VERTEX)
 778                         dist*=1.0001;
 779                 else if(duck->get_type()&Duck::TYPE_RADIUS)
 780                         dist*=0.9999;
 781
 782                 if(dist<=closest && !( duck->get_type() && (!(type & duck->get_type())) ) )
 783                 {
 784                         {
 785                                 closest=dist;
 786                                 ret=duck;
 787                         }
 788                 }
 789         }
 790
 791         if(radius==0 || closest<radius*radius)
 792                 return ret;
 793
 794         return 0;
 795 }
 796
 797 etl::handle<Duckmatic::Bezier>
 798 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 799 {
 800         return find_bezier(point,radius,radius,location);
 801 }
 802
 803 etl::handle<Duckmatic::Bezier>
 804 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 805 {
 806         if(radius==0)radius=10000000;
 807         Real closest(10000000);
 808         etl::handle<Bezier> ret;
 809
 810         bezier<Point>   curve;
 811
 812         Real    d,step;
 813         float   time = 0;
 814         float   best_time = 0;
 815
 816         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 817         {
 818                 curve[0] = (*iter)->p1->get_trans_point();
 819                 curve[1] = (*iter)->c1->get_trans_point();
 820                 curve[2] = (*iter)->c2->get_trans_point();
 821                 curve[3] = (*iter)->p2->get_trans_point();
 822                 curve.sync();
 823
 824 #if 0
 825                 // I don't know why this doesn't work
 826                 time=curve.find_closest(pos,6);
 827                 d=((curve(time)-pos).mag_squared());
 828
 829 #else
 830                 //set the step size based on the size of the picture
 831                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 832
 833                 step = d/(2*scale); //want to make the distance between lines happy
 834
 835                 step = max(step,0.01); //100 samples should be plenty
 836                 step = min(step,0.1); //10 is minimum
 837
 838                 d = find_closest(curve,pos,step,&closest,&time);
 839 #endif
 840
 841                 if(d < closest)
 842                 {
 843                         closest = d;
 844                         ret = *iter;
 845                         best_time=time;
 846                 }
 847         }
 848
 849         if(closest < radius*radius)
 850         {
 851                 if(location)
 852                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 853
 854                 return ret;
 855         }
 856
 857         return 0;
 858 }
 859
 860 bool
 861 Duckmatic::save_sketch(const synfig::String& filename)const
 862 {
 863         ChangeLocale change_locale(LC_NUMERIC, "C");
 864         std::ofstream file(filename.c_str());
 865
 866         if(!file)return false;
 867
 868         file<<"SKETCH"<<endl;
 869
 870         std::list<etl::handle<Stroke> >::const_iterator iter;
 871
 872         for(iter=persistent_stroke_list_.begin();iter!=persistent_stroke_list_.end();++iter)
 873         {
 874                 file<<"C "
 875                         <<(*iter)->color.get_r()<<' '
 876                         <<(*iter)->color.get_g()<<' '
 877                         <<(*iter)->color.get_b()
 878                 <<endl;
 879                 std::list<synfig::Point>::const_iterator viter;
 880                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
 881                 {
 882                         file<<"V "
 883                                 <<(*viter)[0]<<' '
 884                                 <<(*viter)[1]
 885                         <<endl;
 886                 }
 887         }
 888         if(!file)return false;
 889         sketch_filename_=filename;
 890         signal_sketch_saved_();
 891         return true;
 892 }
 893
 894 bool
 895 Duckmatic::load_sketch(const synfig::String& filename)
 896 {
 897         ChangeLocale change_locale(LC_NUMERIC, "C");
 898         std::ifstream file(filename.c_str());
 899
 900         if(!file)
 901                 return false;
 902
 903         std::string line;
 904         getline(file,line);
 905
 906         if(line!="SKETCH")
 907         {
 908                 synfig::error("Not a sketch");
 909                 return false;
 910         }
 911
 912         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
 913
 914         while(file)
 915         {
 916                 getline(file,line);
 917
 918                 if(line.empty())
 919                         continue;
 920
 921                 switch(line[0])
 922                 {
 923                 case 'C':
 924                 case 'c':
 925                         {
 926                                 stroke_data.spawn();
 927                                 float r,g,b;
 928                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
 929                                 {
 930                                         synfig::warning("Bad color line \"%s\"",line.c_str());
 931                                         r=0;g=0;b=0;
 932                                 }
 933                                 add_persistent_stroke(stroke_data, synfig::Color(r,g,b));
 934                         }
 935                         break;
 936                 case 'V':
 937                 case 'v':
 938                         if(!stroke_data)
 939                         {
 940                                 stroke_data.spawn();
 941                                 add_persistent_stroke(stroke_data, synfig::Color(0,0,0));
 942                         }
 943                         float x,y;
 944                         if(!strscanf(line,"V %f %f",&x, &y))
 945                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
 946                         else
 947                                 stroke_data->push_back(synfig::Vector(x,y));
 948                         break;
 949                 default:
 950                         synfig::warning("Unexpected sketch token '%c'",line[0]);
 951                         break;
 952                 }
 953         }
 954
 955         sketch_filename_=filename;
 956         return true;
 957 }
 958
 959 Duckmatic::Push::Push(Duckmatic *duckmatic_):
 960         duckmatic_(duckmatic_)
 961 {
 962         duck_map=duckmatic_->duck_map;
 963         bezier_list_=duckmatic_->bezier_list_;
 964         duck_data_share_map=duckmatic_->duck_data_share_map;
 965         stroke_list_=duckmatic_->stroke_list_;
 966         duck_dragger_=duckmatic_->duck_dragger_;
 967         needs_restore=true;
 968 }
 969
 970 Duckmatic::Push::~Push()
 971 {
 972         if(needs_restore)
 973                 restore();
 974 }
 975
 976 void
 977 Duckmatic::Push::restore()
 978 {
 979         duckmatic_->duck_map=duck_map;
 980         duckmatic_->bezier_list_=bezier_list_;
 981         duckmatic_->duck_data_share_map=duck_data_share_map;
 982         duckmatic_->stroke_list_=stroke_list_;
 983         duckmatic_->duck_dragger_=duck_dragger_;
 984         needs_restore=false;
 985 }
 986
 987 inline String guid_string(const synfigapp::ValueDesc& x)
 988 {
 989         if(x.parent_is_layer_param())
 990                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
 991         //if(x.is_value_node())
 992                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
 993 }
 994
 995 inline GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
 996 {
 997         GUID ret(0);
 998
 999         if(x.parent_is_layer_param())
1000         {
1001                 ret=x.get_layer()->get_guid()^GUID::hasher(x.get_param_name());
1002         }
1003         else
1004         {
1005                 ret=x.get_value_node()->get_guid();
1006         }
1007
1008         ret^=transform_stack.get_guid();
1009         return ret;
1010 }
1011
1012 /*
1013 Duck::Handle
1014 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)
1015 {
1016         GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(modifier));
1017         etl::handle<Duck> duck=new Duck();
1018
1019         return duck;
1020 }
1021 */
1022
1023 bool
1024 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)
1025 {
1026         ValueBase::Type type=value_desc.get_value_type();
1027 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
1028         switch(type)
1029         {
1030         case ValueBase::TYPE_REAL:
1031
1032                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1033                 {
1034                         etl::handle<Duck> duck=new Duck();
1035                         duck->set_transform_stack(transform_stack);
1036                         duck->set_radius(true);
1037                         duck->set_type(Duck::TYPE_RADIUS);
1038
1039                         // put the duck on the right hand side of the center, whether the display is flipped or not
1040                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()) * (flip_x_ ? -1 : 1), 0));
1041                         duck->set_name(guid_string(value_desc));
1042                         if(value_desc.is_value_node())
1043                         {
1044                                 // If the ValueNode can be directly manipulated,
1045                                 // then set it as so.
1046                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1047                         }
1048                         else
1049                         {
1050                                 duck->set_editable(true);
1051                         }
1052
1053                         if(param_desc && param_desc!=REAL_COOKIE)
1054                         {
1055                                 if(!param_desc->get_origin().empty())
1056                                 {
1057                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1058                                         /*
1059                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1060                                         */
1061                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1062                                         duck->set_origin(last_duck());
1063                                 }
1064                                 duck->set_scalar(param_desc->get_scalar());
1065                         }
1066
1067                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_REAL:
1068                         duck->signal_edited().connect(
1069                                 sigc::bind(
1070                                         sigc::mem_fun(
1071                                                 *canvas_view,
1072                                                 &studio::CanvasView::on_duck_changed),
1073                                         value_desc));
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                                                 0.0f),
1083                                         value_desc));
1084
1085                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1086
1087                         add_duck(duck);
1088
1089                         return true;
1090                 }
1091                 break;
1092
1093         case ValueBase::TYPE_ANGLE:
1094
1095                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1096                 {
1097                         etl::handle<Duck> duck=new Duck();
1098                         duck->set_type(Duck::TYPE_ANGLE);
1099                         duck->set_transform_stack(transform_stack);
1100                         synfig::Angle angle;
1101
1102                         angle=value_desc.get_value(get_time()).get(Angle());
1103                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1104                         duck->set_name(guid_string(value_desc));
1105                         if(value_desc.is_value_node())
1106                         {
1107                                 ValueNode::Handle value_node=value_desc.get_value_node();
1108                                 //duck->set_name(strprintf("%x",value_node.get()));
1109
1110                                 // If the ValueNode can be directly manipulated,
1111                                 // then set it as so.
1112                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1113                         }
1114                         else
1115                         {
1116                                 //angle=(value_desc.get_value().get(Angle()));
1117                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1118                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1119                                 duck->set_editable(true);
1120                         }
1121
1122                         if(param_desc && param_desc!=REAL_COOKIE)
1123                         {
1124                                 if(!param_desc->get_origin().empty())
1125                                 {
1126                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1127                                         /*
1128                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1129                                         */
1130                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1131                                         duck->set_origin(last_duck());
1132                                 }
1133                                 duck->set_scalar(param_desc->get_scalar());
1134                         }
1135
1136                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_ANGLE:
1137                         duck->signal_edited_angle().clear();
1138                         duck->signal_edited_angle().connect(
1139                                 sigc::bind(
1140                                         sigc::mem_fun(
1141                                                 *canvas_view,
1142                                                 &studio::CanvasView::on_duck_angle_changed),
1143                                         value_desc));
1144                         duck->set_value_desc(value_desc);
1145
1146                         duck->signal_user_click(2).connect(
1147                                 sigc::bind(
1148                                         sigc::bind(
1149                                                 sigc::mem_fun(
1150                                                         *canvas_view,
1151                                                         &studio::CanvasView::popup_param_menu),
1152                                                 0.0f),
1153                                         value_desc));
1154                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1155
1156                         add_duck(duck);
1157
1158                         return true;
1159                 }
1160                 break;
1161
1162         case ValueBase::TYPE_VECTOR:
1163                 {
1164                         etl::handle<Duck> duck=new Duck();
1165                         duck->set_transform_stack(transform_stack);
1166
1167                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1168                         duck->set_name(guid_string(value_desc));
1169                         if(value_desc.is_value_node())
1170                         {
1171                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1172
1173                                 // If the ValueNode can be directly manipulated,
1174                                 // then set it as so.
1175                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1176                         }
1177                         else
1178                         {
1179                                 //duck->set_point(value_desc.get_value().get(Point()));
1180                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1181                                 duck->set_editable(true);
1182                         }
1183
1184                         // If we were passed a parameter description
1185                         if(param_desc)
1186                         {
1187                                 if(!param_desc->get_connect().empty())
1188                                 {
1189                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1190                                         Duck::Handle connect_duck;
1191                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0))!=duck_map.end())
1192                                         {
1193                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0)];
1194                                         }
1195                                         else
1196                                         {
1197                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1198                                                 connect_duck=last_duck();
1199                                         }
1200                                         duck->set_connect_duck(connect_duck);
1201                                 }
1202                                 if(!param_desc->get_box().empty())
1203                                 {
1204                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1205                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1206                                         duck->set_box_duck(last_duck());
1207                                 }
1208
1209                                 // If we have an origin
1210                                 if(!param_desc->get_origin().empty())
1211                                 {
1212                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1213                                         /*
1214                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1215                                         */
1216                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1217                                         duck->set_origin(last_duck());
1218                                         duck->set_type(Duck::TYPE_VERTEX);
1219                                 }
1220                                 else
1221                                         duck->set_type(Duck::TYPE_POSITION);
1222
1223                                 duck->set_scalar(param_desc->get_scalar());
1224                         }
1225                         else
1226                                 duck->set_type(Duck::TYPE_POSITION);
1227
1228                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_VECTOR:
1229                         duck->signal_edited().connect(
1230                                 sigc::bind(
1231                                         sigc::mem_fun(
1232                                                 *canvas_view,
1233                                                 &studio::CanvasView::on_duck_changed),
1234                                         value_desc));
1235                         duck->set_value_desc(value_desc);
1236
1237                         duck->signal_user_click(2).connect(
1238                                 sigc::bind(
1239                                         sigc::bind(
1240                                                 sigc::mem_fun(
1241                                                         *canvas_view,
1242                                                         &studio::CanvasView::popup_param_menu),
1243                                                 1.0f),
1244                                         value_desc));
1245                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1246                         add_duck(duck);
1247
1248                         return true;
1249                 }
1250                 break;
1251 /*      case ValueBase::TYPE_SEGMENT:
1252                 {
1253                         etl::handle<Bezier> bezier(new Bezier());
1254                         ValueNode_Composite::Handle value_node;
1255
1256                         if(value_desc.is_value_node() &&
1257                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())))
1258                         {
1259                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1260                                         return false;
1261                                 bezier->p1=last_duck();
1262                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1263                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1264                                         return false;
1265                                 bezier->c1=last_duck();
1266                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1267                                 bezier->c1->set_origin(bezier->p1);
1268                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1269                                 bezier->c1->set_tangent(true);
1270
1271                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1272                                         return false;
1273                                 bezier->p2=last_duck();
1274                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1275                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1276                                         return false;
1277                                 bezier->c2=last_duck();
1278                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1279                                 bezier->c2->set_origin(bezier->p2);
1280                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1281                                 bezier->c2->set_tangent(true);
1282
1283                                 bezier->signal_user_click(2).connect(
1284                                         sigc::bind(
1285                                                 sigc::mem_fun(
1286                                                         *canvas_view,
1287                                                         &studio::CanvasView::popup_param_menu_bezier),
1288                                                 value_desc));
1289
1290                                 add_bezier(bezier);
1291                         }
1292                         else if(value_desc.get_value().is_valid())
1293                         {
1294                                 Segment segment=value_desc.get_value();
1295                                 etl::handle<Duck> duck_p,duck_c;
1296                                 synfig::String name;
1297                                 if(param_desc)
1298                                 {
1299                                         name=param_desc->get_local_name();
1300                                 }
1301                                 else
1302                                 {
1303                                         name=guid_string(value_desc);
1304                                 }
1305
1306                                 duck_p=new class Duck(segment.p1);
1307                                 duck_p->set_name(name+".P1");
1308                                 duck_p->set_type(Duck::TYPE_VERTEX);
1309                                 add_duck(duck_p);
1310
1311                                 duck_c=new class Duck(segment.t1);
1312                                 duck_c->set_name(name+".T1");
1313                                 duck_c->set_type(Duck::TYPE_TANGENT);
1314                                 add_duck(duck_c);
1315                                 duck_c->set_origin(duck_p);
1316                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1317                                 duck_c->set_tangent(true);
1318
1319                                 bezier->p1=duck_p;
1320                                 bezier->c1=duck_c;
1321
1322                                 duck_p=new class Duck(segment.p2);
1323                                 duck_p->set_name(name+".P2");
1324                                 duck_p->set_type(Duck::TYPE_VERTEX);
1325                                 add_duck(duck_p);
1326
1327                                 duck_c=new class Duck(segment.t2);
1328                                 duck_c->set_type(Duck::TYPE_TANGENT);
1329                                 duck_c->set_name(name+".T2");
1330                                 add_duck(duck_c);
1331                                 duck_c->set_origin(duck_p);
1332                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1333                                 duck_c->set_tangent(true);
1334
1335                                 bezier->p2=duck_p;
1336                                 bezier->c2=duck_c;
1337                                 add_bezier(bezier);
1338                         }
1339
1340                         return true;
1341                 }
1342                 break;
1343 */
1344         case ValueBase::TYPE_BLINEPOINT:
1345         {
1346
1347                 if(value_desc.is_value_node() &&
1348                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1349                 {
1350                         ValueNode_Composite::Handle value_node;
1351                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1352
1353                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1354                                 return false;
1355                         etl::handle<Duck> vertex_duck(last_duck());
1356                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1357                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1358                                 return false;
1359                         etl::handle<Duck> t1_duck(last_duck());
1360
1361                         t1_duck->set_origin(vertex_duck);
1362                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1363                         t1_duck->set_tangent(true);
1364
1365                         etl::handle<Duck> t2_duck;
1366
1367                         // If the tangents are split
1368                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1369                         {
1370                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1371                                         return false;
1372                                 t2_duck=last_duck();
1373                                 t2_duck->set_origin(vertex_duck);
1374                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1375                                 t2_duck->set_tangent(true);
1376                         }
1377                         else
1378                         {
1379                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1380                                         return false;
1381                                 t2_duck=last_duck();
1382                                 t2_duck->set_origin(vertex_duck);
1383                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1384                                 t2_duck->set_tangent(true);
1385                         }
1386                         return true;
1387                 }
1388
1389         }
1390         break;
1391         case ValueBase::TYPE_LIST:
1392         {
1393                 // Check for BLine
1394                 if (value_desc.is_value_node() &&
1395                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node()))
1396                 {
1397                         ValueNode_BLine::Handle value_node;
1398                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1399
1400                         int i,first=-1;
1401
1402                         etl::handle<Bezier> bezier;
1403                         etl::handle<Duck> first_duck;
1404                         etl::handle<Duck> duck, tduck;
1405
1406                         for (i = 0; i < value_node->link_count(); i++)
1407                         {
1408                                 float amount(value_node->list[i].amount_at_time(get_time()));
1409
1410                                 // skip vertices that aren't fully on
1411                                 if (amount < 0.9999f)
1412                                         continue;
1413
1414                                 // remember the index of the first vertex we didn't skip
1415                                 if (first == -1)
1416                                         first = i;
1417
1418                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1419
1420                                 // try casting the vertex to Composite - this tells us whether it is composite or not
1421                                 ValueNode_Composite::Handle composite_vertex_value_node(
1422                                         ValueNode_Composite::Handle::cast_dynamic(value_node->get_link(i)));
1423
1424                                 // add the vertex duck - it's a composite
1425                                 if(composite_vertex_value_node)
1426                                 {
1427                                         if (add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,0),canvas_view,transform_stack))
1428                                         {
1429                                                 duck=last_duck();
1430                                                 if(i==first)
1431                                                         first_duck=duck;
1432                                                 duck->set_type(Duck::TYPE_VERTEX);
1433
1434                                                 duck->signal_user_click(2).clear();
1435                                                 duck->signal_user_click(2).connect(
1436                                                         sigc::bind(
1437                                                                 sigc::bind(
1438                                                                         sigc::mem_fun(
1439                                                                                 *canvas_view,
1440                                                                                 &studio::CanvasView::popup_param_menu),
1441                                                                         1.0f),
1442                                                                 synfigapp::ValueDesc(value_node,i)));
1443                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1444
1445                                                 if(param_desc)
1446                                                 {
1447                                                         if(!param_desc->get_origin().empty())
1448                                                         {
1449                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1450                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1451                                                                 duck->set_origin(last_duck());
1452 /*
1453                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1454                                                                 if(value.same_type_as(synfig::Point()))
1455                                                                         duck->set_origin(value.get(synfig::Point()));
1456 */
1457                                                         }
1458                                                 }
1459                                         }
1460                                         else
1461                                                 return false;
1462                                 }
1463                                 // else it's not a composite
1464                                 else
1465                                 {
1466                                         duck=new Duck(bline_point.get_vertex());
1467                                         if(i==first)
1468                                                 first_duck=duck;
1469                                         duck->set_transform_stack(transform_stack);
1470                                         duck->set_editable(false);
1471                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1472                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1473
1474                                         duck->set_type(Duck::TYPE_VERTEX);
1475                                         if(param_desc)
1476                                         {
1477                                                 if(!param_desc->get_origin().empty())
1478                                                 {
1479                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1480                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1481                                                                 duck->set_origin(last_duck());
1482 /*
1483                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1484                                                                 if(value.same_type_as(synfig::Point()))
1485                                                                         duck->set_origin(value.get(synfig::Point()));
1486 */
1487                                                 }
1488                                         }
1489                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".v"));
1490                                         duck=add_similar_duck(duck);
1491 //                                      add_duck(duck);
1492                                 }
1493
1494                                 // Add the width duck if it is a parameter with a hint (ie. "width") or if it isn't a parameter
1495                                 if ((param_desc && !param_desc->get_hint().empty()) ||
1496                                         !param_desc)
1497                                 {
1498                                         etl::handle<Duck> width;
1499                                         if (add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1500                                         {
1501                                                 width=last_duck();
1502                                                 width->set_origin(duck);
1503                                                 width->set_type(Duck::TYPE_WIDTH);
1504                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1505
1506                                                 // if the bline is a layer's parameter, scale the width duck by the layer's "width" parameter
1507                                                 if (param_desc)
1508                                                 {
1509                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1510                                                         if(value.same_type_as(synfig::Real()))
1511                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1512                                                         // if it doesn't have a "width" parameter, scale by 0.5f instead
1513                                                         else
1514                                                                 width->set_scalar(0.5f);
1515                                                 }
1516                                                 // otherwise just present the raw unscaled width
1517                                                 else
1518                                                         width->set_scalar(0.5f);
1519                                         }
1520                                         else
1521                                                 synfig::error("Unable to add width duck!");
1522                                 }
1523
1524                                 // each bezier uses t2 of one point and t1 of the next
1525                                 // the first time through this loop we won't have the t2 duck from the previous vertex
1526                                 // and so we don't make a bezier.  instead we skip on to t2 for this point
1527                                 if(bezier)
1528                                 {
1529                                         // Add the tangent1 duck
1530                                         if(composite_vertex_value_node)
1531                                         {
1532                                                 if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
1533                                                         return false;
1534                                                 tduck=last_duck();
1535                                         }
1536                                         else
1537                                         {
1538                                                 tduck=new Duck(bline_point.get_tangent1());
1539                                                 tduck->set_transform_stack(transform_stack);
1540                                                 tduck->set_editable(false);
1541                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1542 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1543                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1544                                                 tduck=add_similar_duck(tduck);
1545 //                                              add_duck(duck);
1546                                         }
1547
1548                                         tduck->set_origin(duck);
1549                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1550                                         tduck->set_tangent(true);
1551
1552                                         bezier->p2=duck;
1553                                         bezier->c2=tduck;
1554
1555                                         bezier->signal_user_click(2).connect(
1556                                                 sigc::bind(
1557                                                         sigc::mem_fun(
1558                                                                 *canvas_view,
1559                                                                 &studio::CanvasView::popup_param_menu_bezier),
1560                                                         synfigapp::ValueDesc(value_node,i)));
1561
1562                                         duck->signal_user_click(2).clear();
1563                                         duck->signal_user_click(2).connect(
1564                                                 sigc::bind(
1565                                                         sigc::bind(
1566                                                                 sigc::mem_fun(
1567                                                                         *canvas_view,
1568                                                                         &studio::CanvasView::popup_param_menu),
1569                                                                 1.0f),
1570                                                         synfigapp::ValueDesc(value_node,i)));
1571                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1572
1573                                         add_bezier(bezier);
1574                                         bezier=0;
1575                                 }
1576
1577                                 // don't start a new bezier for the last point in the line if we're not looped
1578                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1579                                         continue;
1580
1581                                 bezier=new Bezier();
1582
1583                                 // Add the tangent2 duck
1584                                 if(composite_vertex_value_node)
1585                                 {
1586                                         int i=bline_point.get_split_tangent_flag()?5:4;
1587                                         if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,i),canvas_view,transform_stack,0,2))
1588                                                 return false;
1589                                         tduck=last_duck();
1590                                 }
1591                                 else
1592                                 {
1593                                         if(bline_point.get_split_tangent_flag())
1594                                                 tduck=new Duck(bline_point.get_tangent2());
1595                                         else
1596                                                 tduck=new Duck(bline_point.get_tangent1());
1597
1598                                         tduck->set_transform_stack(transform_stack);
1599                                         tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1600                                         tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t2"));
1601                                         tduck->set_editable(false);
1602                                         tduck=add_similar_duck(tduck);
1603 //                                      add_duck(duck);
1604                                         if(param_desc)
1605                                         {
1606                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1607                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1608                                                                 duck->set_origin(last_duck());
1609 /*
1610                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1611                                                                 if(value.same_type_as(synfig::Point()))
1612                                                                         duck->set_origin(value.get(synfig::Point()));
1613 */
1614 //                                              if(!param_desc->get_origin().empty())
1615 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1616                                         }
1617                                         duck->signal_user_click(2).clear();
1618                                         duck->signal_user_click(2).connect(
1619                                                 sigc::bind(
1620                                                         sigc::bind(
1621                                                                 sigc::mem_fun(
1622                                                                         *canvas_view,
1623                                                                         &studio::CanvasView::popup_param_menu),
1624                                                                 1.0f),
1625                                                         synfigapp::ValueDesc(value_node,i)));
1626                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1627
1628                                 }
1629
1630                                 tduck->set_origin(duck);
1631                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1632                                 tduck->set_tangent(true);
1633
1634                                 bezier->p1=duck;
1635                                 bezier->c1=tduck;
1636                         }
1637
1638                         // Loop if necessary
1639                         if(bezier && value_node->get_loop())
1640                         {
1641                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1642
1643                                 ValueNode_Composite::Handle composite_vertex_value_node(
1644                                         ValueNode_Composite::Handle::cast_dynamic(
1645                                                 value_node->get_link(first)));
1646
1647                                 // Add the vertex duck
1648                                 duck=first_duck;
1649
1650                                 // Add the tangent1 duck
1651                                 if(composite_vertex_value_node)
1652                                 {
1653                                         if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
1654                                                 return false;
1655                                         tduck=last_duck();
1656                                 }
1657                                 else
1658                                 {
1659                                         tduck=new Duck(bline_point.get_tangent1());
1660                                         tduck->set_transform_stack(transform_stack);
1661                                         tduck->set_editable(false);
1662                                         tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1663                                         //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1664                                         tduck=add_similar_duck(tduck);
1665                                         tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,first),transform_stack)^GUID::hasher(".t1"));
1666                                         //add_duck(duck);
1667                                 }
1668
1669                                 tduck->set_origin(duck);
1670                                 tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1671                                 tduck->set_tangent(true);
1672
1673                                 bezier->p2=duck;
1674                                 bezier->c2=tduck;
1675
1676                                 bezier->signal_user_click(2).connect(
1677                                         sigc::bind(
1678                                                 sigc::mem_fun(
1679                                                         *canvas_view,
1680                                                         &studio::CanvasView::popup_param_menu_bezier),
1681                                                 synfigapp::ValueDesc(value_node,first)));
1682
1683                                 duck->signal_user_click(2).clear();
1684                                 duck->signal_user_click(2).connect(
1685                                         sigc::bind(
1686                                                 sigc::bind(
1687                                                         sigc::mem_fun(
1688                                                                 *canvas_view,
1689                                                                 &studio::CanvasView::popup_param_menu),
1690                                                         1.0f),
1691                                                 synfigapp::ValueDesc(value_node,first)));
1692                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1693
1694                                 add_bezier(bezier);
1695                                 bezier=0;
1696                         }
1697                         return true;
1698                 }
1699                 else // Check for DynamicList
1700                 if(value_desc.is_value_node() &&
1701                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node()))
1702                 {
1703                         ValueNode_DynamicList::Handle value_node;
1704                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1705                         int i;
1706
1707                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1708                         {
1709                                 Bezier bezier;
1710                                 for(i=0;i<value_node->link_count();i++)
1711                                 {
1712                                         if(!value_node->list[i].status_at_time(get_time()))
1713                                                 continue;
1714                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1715                                                 return false;
1716                                         etl::handle<Duck> duck(last_duck());
1717
1718                                         if(param_desc)
1719                                         {
1720                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1721                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1722                                                                 duck->set_origin(last_duck());
1723 /*
1724                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1725                                                                 if(value.same_type_as(synfig::Point()))
1726                                                                         duck->set_origin(value.get(synfig::Point()));
1727 */
1728 //                                              if(!param_desc->get_origin().empty())
1729 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1730                                         }
1731                                         duck->set_type(Duck::TYPE_VERTEX);
1732                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1733                                         bezier.p2=bezier.c2=duck;
1734
1735                                         if(i>0)
1736                                         {
1737                                                 handle<Bezier> bezier_(new Bezier());
1738                                                 bezier_->p1=bezier.p1;
1739                                                 bezier_->c1=bezier.c1;
1740                                                 bezier_->p2=bezier.p2;
1741                                                 bezier_->c2=bezier.c2;
1742                                                 add_bezier(bezier_);
1743                                                 last_bezier()->signal_user_click(2).connect(
1744                                                         sigc::bind(
1745                                                                 sigc::mem_fun(
1746                                                                         *canvas_view,
1747                                                                         &studio::CanvasView::popup_param_menu_bezier),
1748                                                                 synfigapp::ValueDesc(value_node,i)));
1749                                         }
1750                                 }
1751                         }
1752                         /*else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1753                         {
1754                                 for(i=0;i<value_node->link_count();i++)
1755                                 {
1756                                         if(!value_node->list[i].status_at_time(get_time()))
1757                                                 continue;
1758                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1759                                                 return false;
1760                                 }
1761                         }
1762                         */
1763                         else
1764                                 return false;
1765                 }
1766                 else
1767                 {
1768                         // WRITEME
1769                 }
1770
1771                 return true;
1772         }
1773
1774         break;
1775         default:
1776                 break;
1777         }
1778         return false;
1779 }