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 }
 290
 291 void
 292 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 293 {
 294         Vector vmin, vmax;
 295         vmin[0]=std::min(tl[0],br[0]);
 296         vmin[1]=std::min(tl[1],br[1]);
 297         vmax[0]=std::max(tl[0],br[0]);
 298         vmax[1]=std::max(tl[1],br[1]);
 299
 300         DuckMap::const_iterator iter;
 301         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 302         {
 303                 Point p(iter->second->get_trans_point());
 304                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 305                    is_duck_group_selectable(iter->second))
 306                         toggle_select_duck(iter->second);
 307         }
 308 }
 309
 310 void
 311 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 312 {
 313         Vector vmin, vmax;
 314         vmin[0]=std::min(tl[0],br[0]);
 315         vmin[1]=std::min(tl[1],br[1]);
 316         vmax[0]=std::max(tl[0],br[0]);
 317         vmax[1]=std::max(tl[1],br[1]);
 318
 319 //      Type type(get_type_mask());
 320
 321         DuckMap::const_iterator iter;
 322         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 323         {
 324                 Point p(iter->second->get_trans_point());
 325                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 326                 {
 327                         if(is_duck_group_selectable(iter->second))
 328                                 select_duck(iter->second);
 329                 }
 330         }
 331 }
 332
 333 int
 334 Duckmatic::count_selected_ducks()const
 335 {
 336         return selected_ducks.size();
 337 }
 338
 339 void
 340 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 341 {
 342         if(duck)
 343         {
 344                 selected_ducks.insert(duck->get_guid());
 345                 signal_duck_selection_changed_();
 346         }
 347 }
 348
 349 DuckList
 350 Duckmatic::get_selected_ducks()const
 351 {
 352         DuckList ret;
 353         GUIDSet::const_iterator iter;
 354         const Type type(get_type_mask());
 355
 356         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 357         {
 358                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 359
 360                 if(d_iter==duck_map.end())
 361                         continue;
 362
 363                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 364                         continue;
 365
 366                 ret.push_back(d_iter->second);
 367         }
 368         return ret;
 369 }
 370
 371 DuckList
 372 Duckmatic::get_duck_list()const
 373 {
 374         DuckList ret;
 375         DuckMap::const_iterator iter;
 376         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 377                 ret.push_back(iter->second);
 378         return ret;
 379 }
 380
 381 void
 382 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 383 {
 384         if(duck && selected_ducks.count(duck->get_guid()))
 385         {
 386                 selected_ducks.erase(duck->get_guid());
 387                 signal_duck_selection_changed_();
 388         }
 389 }
 390
 391 void
 392 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 393 {
 394         if(duck_is_selected(duck))
 395                 unselect_duck(duck);
 396         else
 397                 select_duck(duck);
 398 }
 399
 400 void
 401 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 402 {
 403         if(duck_dragger_)
 404                 duck_dragger_->duck_drag(this,vector);
 405 }
 406
 407 void
 408 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 409 {
 410         if(duck_dragger_)
 411                 duck_dragger_->begin_duck_drag(this,offset);
 412
 413         //drag_offset_=offset;
 414         drag_offset_=find_duck(offset)->get_trans_point();
 415 }
 416
 417 bool
 418 Duckmatic::end_duck_drag()
 419 {
 420         if(duck_dragger_)
 421                 return duck_dragger_->end_duck_drag(this);
 422         return false;
 423 }
 424
 425 Point
 426 Duckmatic::snap_point_to_grid(const synfig::Point& x, float radius)const
 427 {
 428         Point ret(x);
 429
 430         GuideList::const_iterator guide_x,guide_y;
 431         bool has_guide_x(false), has_guide_y(false);
 432
 433         guide_x=find_guide_x(ret,radius);
 434         if(guide_x!=guide_list_x_.end())
 435                 has_guide_x=true;
 436
 437         guide_y=find_guide_y(ret,radius);
 438         if(guide_y!=guide_list_y_.end())
 439                 has_guide_y=true;
 440
 441         if(get_grid_snap())
 442         {
 443                 Point snap(
 444                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 445                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]
 446                 );
 447
 448                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 449                         ret[0]=snap[0],has_guide_x=false;
 450                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 451                         ret[1]=snap[1],has_guide_y=false;
 452         }
 453
 454         if(guide_snap)
 455         {
 456                 if(has_guide_x)
 457                         ret[0]=*guide_x;
 458                 if(has_guide_y)
 459                         ret[1]=*guide_y;
 460         }
 461
 462         if(axis_lock)
 463         {
 464                 ret-=drag_offset_;
 465                 if(abs(ret[0])<abs(ret[1]))
 466                         ret[0]=0;
 467                 else
 468                         ret[1]=0;
 469                 ret+=drag_offset_;
 470         }
 471
 472         return ret;
 473 }
 474
 475 void
 476 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 477 {
 478         last_translate_=Vector(0,0);
 479         {
 480                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 481
 482                 snap=Vector(0,0);
 483         }
 484
 485         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 486         DuckList::const_iterator iter;
 487
 488         positions.clear();
 489         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 490         {
 491                 Point p((*iter)->get_trans_point());
 492                 positions.push_back(p);
 493         }
 494 }
 495
 496 bool
 497 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 498 {
 499         if(last_translate_.mag()>0.0001)
 500         {
 501                 duckmatic->signal_edited_selected_ducks();
 502                 return true;
 503         }
 504         else
 505         {
 506                 duckmatic->signal_user_click_selected_ducks(0);
 507                 return false;
 508         }
 509 }
 510
 511 void
 512 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 513 {
 514         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 515         DuckList::const_iterator iter;
 516
 517         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 518         int i;
 519
 520         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 521         {
 522                 if((*iter)->get_type()!=Duck::TYPE_VERTEX &&
 523                    (*iter)->get_type()!=Duck::TYPE_POSITION)
 524                         continue;
 525                 (*iter)->set_trans_point(positions[i]+vect);
 526         }
 527         for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
 528         {
 529                 if((*iter)->get_type()==Duck::TYPE_VERTEX ||
 530                    (*iter)->get_type()==Duck::TYPE_POSITION)
 531                         continue;
 532                 (*iter)->set_trans_point(positions[i]+vect);
 533         }
 534         last_translate_=vect;
 535 }
 536
 537 void
 538 Duckmatic::signal_edited_selected_ducks()
 539 {
 540         const DuckList ducks(get_selected_ducks());
 541         DuckList::const_iterator iter;
 542
 543         synfig::GUIDSet old_set(selected_ducks);
 544
 545         // If we have more than 20 things to move, then display
 546         // something to explain that it may take a moment
 547         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 548
 549         // Go ahead and call everyone's signals
 550         for(iter=ducks.begin();iter!=ducks.end();++iter)
 551         {
 552                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 553                 {
 554                         if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 555                         {
 556                                 selected_ducks=old_set;
 557                                 throw String("Bad edit");
 558                         }
 559                 }
 560                 else if (App::restrict_radius_ducks &&
 561                                  (*iter)->is_radius())
 562                 {
 563                         Point point((*iter)->get_point());
 564                         bool changed = false;
 565
 566                         if (point[0] * (flip_x_ ? -1 : 1) < 0)
 567                         {
 568                                 point[0] = 0;
 569                                 changed = true;
 570                         }
 571                         if (point[1] * (flip_y_ ? -1 : 1) < 0)
 572                         {
 573                                 point[1] = 0;
 574                                 changed = true;
 575                         }
 576
 577                         if (changed) (*iter)->set_point(point);
 578
 579                         if(!(*iter)->signal_edited()(point))
 580                         {
 581                                 selected_ducks=old_set;
 582                                 throw String("Bad edit");
 583                         }
 584                 }
 585                 else
 586                 {
 587                         if(!(*iter)->signal_edited()((*iter)->get_point()))
 588                         {
 589                                 selected_ducks=old_set;
 590                                 throw String("Bad edit");
 591                         }
 592                 }
 593         }
 594         selected_ducks=old_set;
 595 }
 596
 597 void
 598 Duckmatic::signal_user_click_selected_ducks(int button)
 599 {
 600         const DuckList ducks(get_selected_ducks());
 601         DuckList::const_iterator iter;
 602
 603         for(iter=ducks.begin();iter!=ducks.end();++iter)
 604         {
 605                 (*iter)->signal_user_click(button)();
 606         }
 607 }
 608
 609 void
 610 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 611 {
 612         //if(!duck_map.count(duck->get_guid()))
 613         {
 614                 if(duck_data_share_map.count(duck->get_data_guid()))
 615                 {
 616                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 617                 }
 618                 else
 619                 {
 620                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 621                         duck->set_shared_point(point);
 622                         duck_data_share_map[duck->get_data_guid()]=point;
 623                 }
 624
 625                 duck_map.insert(duck);
 626         }
 627
 628         last_duck_guid=duck->get_guid();
 629 }
 630
 631 void
 632 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 633 {
 634         bezier_list_.push_back(bezier);
 635 }
 636
 637 void
 638 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 639 {
 640         assert(stroke_point_list);
 641
 642         std::list<etl::handle<Stroke> >::iterator iter;
 643
 644         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 645         {
 646                 if((*iter)->stroke_data==stroke_point_list)
 647                         return;
 648         }
 649
 650         etl::handle<Stroke> stroke(new Stroke());
 651
 652         stroke->stroke_data=stroke_point_list;
 653         stroke->color=color;
 654
 655         stroke_list_.push_back(stroke);
 656 }
 657
 658 void
 659 Duckmatic::add_persistent_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 660 {
 661         add_stroke(stroke_point_list,color);
 662         persistent_stroke_list_.push_back(stroke_list_.back());
 663 }
 664
 665 void
 666 Duckmatic::clear_persistent_strokes()
 667 {
 668         persistent_stroke_list_.clear();
 669 }
 670
 671 void
 672 Duckmatic::set_show_persistent_strokes(bool x)
 673 {
 674         if(x!=show_persistent_strokes)
 675         {
 676                 show_persistent_strokes=x;
 677                 if(x)
 678                         stroke_list_=persistent_stroke_list_;
 679                 else
 680                         stroke_list_.clear();
 681         }
 682 }
 683
 684 void
 685 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 686 {
 687         duck_map.erase(duck->get_guid());
 688 }
 689
 690 etl::handle<Duckmatic::Duck>
 691 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 692 {
 693         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 694         if(iter!=duck_map.end())
 695                 return iter->second;
 696         return 0;
 697
 698 /*      std::list<handle<Duck> >::reverse_iterator iter;
 699
 700         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 701         {
 702                 if(*iter!=duck && **iter==*duck)
 703                 {
 704                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 705                         return *iter;
 706                 }
 707         }
 708         return 0;
 709 */
 710 }
 711
 712 etl::handle<Duckmatic::Duck>
 713 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 714 {
 715         etl::handle<Duck> similar(find_similar_duck(duck));
 716         if(!similar)
 717         {
 718                 add_duck(duck);
 719                 return duck;
 720         }
 721         return similar;
 722 }
 723
 724 void
 725 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 726 {
 727         std::list<handle<Bezier> >::iterator iter;
 728
 729         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 730         {
 731                 if(*iter==bezier)
 732                 {
 733                         bezier_list_.erase(iter);
 734                         return;
 735                 }
 736         }
 737         synfig::warning("Unable to find bezier to erase!");
 738 }
 739
 740 etl::handle<Duckmatic::Duck>
 741 Duckmatic::last_duck()const
 742 {
 743         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 744         if(iter!=duck_map.end())
 745                 return iter->second;
 746         return 0;
 747 }
 748
 749 etl::handle<Duckmatic::Bezier>
 750 Duckmatic::last_bezier()const
 751 {
 752         return bezier_list_.back();
 753 }
 754
 755 etl::handle<Duckmatic::Duck>
 756 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 757 {
 758         if(radius==0)radius=10000000;
 759
 760         if(type==Duck::TYPE_DEFAULT)
 761                 type=get_type_mask();
 762
 763         Real closest(10000000);
 764         etl::handle<Duck> ret;
 765
 766         DuckMap::const_iterator iter;
 767
 768         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 769         {
 770                 const Duck::Handle& duck(iter->second);
 771
 772                 if(duck->get_ignore())
 773                         continue;
 774                 Real dist((duck->get_trans_point()-point).mag_squared());
 775
 776                 if(duck->get_type()&Duck::TYPE_VERTEX)
 777                         dist*=1.0001;
 778                 else if(duck->get_type()&Duck::TYPE_RADIUS)
 779                         dist*=0.9999;
 780
 781                 if(dist<=closest && !( duck->get_type() && (!(type & duck->get_type())) ) )
 782                 {
 783                         {
 784                                 closest=dist;
 785                                 ret=duck;
 786                         }
 787                 }
 788         }
 789
 790         if(radius==0 || closest<radius*radius)
 791                 return ret;
 792
 793         return 0;
 794 }
 795
 796 etl::handle<Duckmatic::Bezier>
 797 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 798 {
 799         return find_bezier(point,radius,radius,location);
 800 }
 801
 802 etl::handle<Duckmatic::Bezier>
 803 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 804 {
 805         if(radius==0)radius=10000000;
 806         Real closest(10000000);
 807         etl::handle<Bezier> ret;
 808
 809         bezier<Point>   curve;
 810
 811         Real    d,step;
 812         float   time = 0;
 813         float   best_time = 0;
 814
 815         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 816         {
 817                 curve[0] = (*iter)->p1->get_trans_point();
 818                 curve[1] = (*iter)->c1->get_trans_point();
 819                 curve[2] = (*iter)->c2->get_trans_point();
 820                 curve[3] = (*iter)->p2->get_trans_point();
 821                 curve.sync();
 822
 823 #if 0
 824                 // I don't know why this doesn't work
 825                 time=curve.find_closest(pos,6);
 826                 d=((curve(time)-pos).mag_squared());
 827
 828 #else
 829                 //set the step size based on the size of the picture
 830                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 831
 832                 step = d/(2*scale); //want to make the distance between lines happy
 833
 834                 step = max(step,0.01); //100 samples should be plenty
 835                 step = min(step,0.1); //10 is minimum
 836
 837                 d = find_closest(curve,pos,step,&closest,&time);
 838 #endif
 839
 840                 if(d < closest)
 841                 {
 842                         closest = d;
 843                         ret = *iter;
 844                         best_time=time;
 845                 }
 846         }
 847
 848         if(closest < radius*radius)
 849         {
 850                 if(location)
 851                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 852
 853                 return ret;
 854         }
 855
 856         return 0;
 857 }
 858
 859 bool
 860 Duckmatic::save_sketch(const synfig::String& filename)const
 861 {
 862         ChangeLocale change_locale(LC_NUMERIC, "C");
 863         std::ofstream file(filename.c_str());
 864
 865         if(!file)return false;
 866
 867         file<<"SKETCH"<<endl;
 868
 869         std::list<etl::handle<Stroke> >::const_iterator iter;
 870
 871         for(iter=persistent_stroke_list_.begin();iter!=persistent_stroke_list_.end();++iter)
 872         {
 873                 file<<"C "
 874                         <<(*iter)->color.get_r()<<' '
 875                         <<(*iter)->color.get_g()<<' '
 876                         <<(*iter)->color.get_b()
 877                 <<endl;
 878                 std::list<synfig::Point>::const_iterator viter;
 879                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
 880                 {
 881                         file<<"V "
 882                                 <<(*viter)[0]<<' '
 883                                 <<(*viter)[1]
 884                         <<endl;
 885                 }
 886         }
 887         if(!file)return false;
 888         sketch_filename_=filename;
 889         signal_sketch_saved_();
 890         return true;
 891 }
 892
 893 bool
 894 Duckmatic::load_sketch(const synfig::String& filename)
 895 {
 896         ChangeLocale change_locale(LC_NUMERIC, "C");
 897         std::ifstream file(filename.c_str());
 898
 899         if(!file)
 900                 return false;
 901
 902         std::string line;
 903         getline(file,line);
 904
 905         if(line!="SKETCH")
 906         {
 907                 synfig::error("Not a sketch");
 908                 return false;
 909         }
 910
 911         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
 912
 913         while(file)
 914         {
 915                 getline(file,line);
 916
 917                 if(line.empty())
 918                         continue;
 919
 920                 switch(line[0])
 921                 {
 922                 case 'C':
 923                 case 'c':
 924                         {
 925                                 stroke_data.spawn();
 926                                 float r,g,b;
 927                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
 928                                 {
 929                                         synfig::warning("Bad color line \"%s\"",line.c_str());
 930                                         r=0;g=0;b=0;
 931                                 }
 932                                 add_persistent_stroke(stroke_data, synfig::Color(r,g,b));
 933                         }
 934                         break;
 935                 case 'V':
 936                 case 'v':
 937                         if(!stroke_data)
 938                         {
 939                                 stroke_data.spawn();
 940                                 add_persistent_stroke(stroke_data, synfig::Color(0,0,0));
 941                         }
 942                         float x,y;
 943                         if(!strscanf(line,"V %f %f",&x, &y))
 944                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
 945                         else
 946                                 stroke_data->push_back(synfig::Vector(x,y));
 947                         break;
 948                 default:
 949                         synfig::warning("Unexpected sketch token '%c'",line[0]);
 950                         break;
 951                 }
 952         }
 953
 954         sketch_filename_=filename;
 955         return true;
 956 }
 957
 958 Duckmatic::Push::Push(Duckmatic *duckmatic_):
 959         duckmatic_(duckmatic_)
 960 {
 961         duck_map=duckmatic_->duck_map;
 962         bezier_list_=duckmatic_->bezier_list_;
 963         duck_data_share_map=duckmatic_->duck_data_share_map;
 964         stroke_list_=duckmatic_->stroke_list_;
 965         duck_dragger_=duckmatic_->duck_dragger_;
 966         needs_restore=true;
 967 }
 968
 969 Duckmatic::Push::~Push()
 970 {
 971         if(needs_restore)
 972                 restore();
 973 }
 974
 975 void
 976 Duckmatic::Push::restore()
 977 {
 978         duckmatic_->duck_map=duck_map;
 979         duckmatic_->bezier_list_=bezier_list_;
 980         duckmatic_->duck_data_share_map=duck_data_share_map;
 981         duckmatic_->stroke_list_=stroke_list_;
 982         duckmatic_->duck_dragger_=duck_dragger_;
 983         needs_restore=false;
 984 }
 985
 986 inline String guid_string(const synfigapp::ValueDesc& x)
 987 {
 988         if(x.parent_is_layer_param())
 989                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
 990         //if(x.is_value_node())
 991                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
 992 }
 993
 994 inline GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
 995 {
 996         GUID ret(0);
 997
 998         if(x.parent_is_layer_param())
 999         {
1000                 ret=x.get_layer()->get_guid()^GUID::hasher(x.get_param_name());
1001         }
1002         else
1003         {
1004                 ret=x.get_value_node()->get_guid();
1005         }
1006
1007         ret^=transform_stack.get_guid();
1008         return ret;
1009 }
1010
1011 /*
1012 Duck::Handle
1013 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)
1014 {
1015         GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(modifier));
1016         etl::handle<Duck> duck=new Duck();
1017
1018         return duck;
1019 }
1020 */
1021
1022 bool
1023 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)
1024 {
1025         ValueBase::Type type=value_desc.get_value_type();
1026 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
1027         switch(type)
1028         {
1029         case ValueBase::TYPE_REAL:
1030
1031                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1032                 {
1033                         etl::handle<Duck> duck=new Duck();
1034                         duck->set_transform_stack(transform_stack);
1035                         duck->set_radius(true);
1036                         duck->set_type(Duck::TYPE_RADIUS);
1037
1038                         // put the duck on the right hand side of the center, whether the display is flipped or not
1039                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()) * (flip_x_ ? -1 : 1), 0));
1040                         duck->set_name(guid_string(value_desc));
1041                         if(value_desc.is_value_node())
1042                         {
1043                                 // If the ValueNode can be directly manipulated,
1044                                 // then set it as so.
1045                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1046                         }
1047                         else
1048                         {
1049                                 duck->set_editable(true);
1050                         }
1051
1052                         if(param_desc && param_desc!=REAL_COOKIE)
1053                         {
1054                                 if(!param_desc->get_origin().empty())
1055                                 {
1056                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1057                                         /*
1058                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1059                                         */
1060                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1061                                         duck->set_origin(last_duck());
1062                                 }
1063                                 duck->set_scalar(param_desc->get_scalar());
1064                         }
1065
1066                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_REAL:
1067                         duck->signal_edited().connect(
1068                                 sigc::bind(
1069                                         sigc::mem_fun(
1070                                                 *canvas_view,
1071                                                 &studio::CanvasView::on_duck_changed
1072                                         ),
1073                                         value_desc
1074                                 )
1075                         );
1076                         duck->set_value_desc(value_desc);
1077
1078                         duck->signal_user_click(2).connect(
1079                                 sigc::bind(
1080                                         sigc::bind(
1081                                                 sigc::mem_fun(
1082                                                         *canvas_view,
1083                                                         &studio::CanvasView::popup_param_menu
1084                                                 ),
1085                                                 0.0f
1086                                         ),
1087                                         value_desc
1088                                 )
1089                         );
1090
1091                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1092
1093                         add_duck(duck);
1094
1095                         return true;
1096                 }
1097                 break;
1098
1099         case ValueBase::TYPE_ANGLE:
1100
1101                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1102                 {
1103                         etl::handle<Duck> duck=new Duck();
1104                         duck->set_type(Duck::TYPE_ANGLE);
1105                         duck->set_transform_stack(transform_stack);
1106                         synfig::Angle angle;
1107
1108                         angle=value_desc.get_value(get_time()).get(Angle());
1109                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1110                         duck->set_name(guid_string(value_desc));
1111                         if(value_desc.is_value_node())
1112                         {
1113                                 ValueNode::Handle value_node=value_desc.get_value_node();
1114                                 //duck->set_name(strprintf("%x",value_node.get()));
1115
1116                                 // If the ValueNode can be directly manipulated,
1117                                 // then set it as so.
1118                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1119                         }
1120                         else
1121                         {
1122                                 //angle=(value_desc.get_value().get(Angle()));
1123                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1124                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1125                                 duck->set_editable(true);
1126                         }
1127
1128                         if(param_desc && param_desc!=REAL_COOKIE)
1129                         {
1130                                 if(!param_desc->get_origin().empty())
1131                                 {
1132                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1133                                         /*
1134                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1135                                         */
1136                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1137                                         duck->set_origin(last_duck());
1138                                 }
1139                                 duck->set_scalar(param_desc->get_scalar());
1140                         }
1141
1142                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_ANGLE:
1143                         duck->signal_edited_angle().clear();
1144                         duck->signal_edited_angle().connect(
1145                                 sigc::bind(
1146                                         sigc::mem_fun(
1147                                                 *canvas_view,
1148                                                 &studio::CanvasView::on_duck_angle_changed
1149                                         ),
1150                                         value_desc
1151                                 )
1152                         );
1153                         duck->set_value_desc(value_desc);
1154
1155                         duck->signal_user_click(2).connect(
1156                                 sigc::bind(
1157                                         sigc::bind(
1158                                                 sigc::mem_fun(
1159                                                         *canvas_view,
1160                                                         &studio::CanvasView::popup_param_menu
1161                                                 ),
1162                                                 0.0f
1163                                         ),
1164                                         value_desc
1165                                 )
1166                         );
1167                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1168
1169                         add_duck(duck);
1170
1171                         return true;
1172                 }
1173                 break;
1174
1175         case ValueBase::TYPE_VECTOR:
1176                 {
1177                         etl::handle<Duck> duck=new Duck();
1178                         duck->set_transform_stack(transform_stack);
1179
1180                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1181                         duck->set_name(guid_string(value_desc));
1182                         if(value_desc.is_value_node())
1183                         {
1184                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1185
1186                                 // If the ValueNode can be directly manipulated,
1187                                 // then set it as so.
1188                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1189                         }
1190                         else
1191                         {
1192                                 //duck->set_point(value_desc.get_value().get(Point()));
1193                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1194                                 duck->set_editable(true);
1195                         }
1196
1197                         // If we were passed a parameter description
1198                         if(param_desc)
1199                         {
1200                                 if(!param_desc->get_connect().empty())
1201                                 {
1202                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1203                                         Duck::Handle connect_duck;
1204                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0))!=duck_map.end())
1205                                         {
1206                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^GUID::hasher(0)];
1207                                         }
1208                                         else
1209                                         {
1210                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1211                                                 connect_duck=last_duck();
1212                                         }
1213                                         duck->set_connect_duck(connect_duck);
1214                                 }
1215                                 if(!param_desc->get_box().empty())
1216                                 {
1217                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1218                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1219                                         duck->set_box_duck(last_duck());
1220                                 }
1221
1222                                 // If we have an origin
1223                                 if(!param_desc->get_origin().empty())
1224                                 {
1225                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1226                                         /*
1227                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1228                                         */
1229                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1230                                         duck->set_origin(last_duck());
1231                                         duck->set_type(Duck::TYPE_VERTEX);
1232                                 }
1233                                 else
1234                                         duck->set_type(Duck::TYPE_POSITION);
1235
1236                                 duck->set_scalar(param_desc->get_scalar());
1237                         }
1238                         else
1239                                 duck->set_type(Duck::TYPE_POSITION);
1240
1241                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_VECTOR:
1242                         duck->signal_edited().connect(
1243                                 sigc::bind(
1244                                         sigc::mem_fun(
1245                                                 *canvas_view,
1246                                                 &studio::CanvasView::on_duck_changed
1247                                         ),
1248                                         value_desc
1249                                 )
1250                         );
1251                         duck->set_value_desc(value_desc);
1252
1253                         duck->signal_user_click(2).connect(
1254                                 sigc::bind(
1255                                         sigc::bind(
1256                                                 sigc::mem_fun(
1257                                                         *canvas_view,
1258                                                         &studio::CanvasView::popup_param_menu
1259                                                 ),
1260                                                 1.0f
1261                                         ),
1262                                         value_desc
1263                                 )
1264                         );
1265                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^GUID::hasher(multiple));
1266                         add_duck(duck);
1267
1268                         return true;
1269                 }
1270                 break;
1271 /*      case ValueBase::TYPE_SEGMENT:
1272                 {
1273                         etl::handle<Bezier> bezier(new Bezier());
1274                         ValueNode_Composite::Handle value_node;
1275
1276                         if(value_desc.is_value_node() &&
1277                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1278                         )
1279                         {
1280                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1281                                         return false;
1282                                 bezier->p1=last_duck();
1283                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1284                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1285                                         return false;
1286                                 bezier->c1=last_duck();
1287                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1288                                 bezier->c1->set_origin(bezier->p1);
1289                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1290                                 bezier->c1->set_tangent(true);
1291
1292                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1293                                         return false;
1294                                 bezier->p2=last_duck();
1295                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1296                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1297                                         return false;
1298                                 bezier->c2=last_duck();
1299                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1300                                 bezier->c2->set_origin(bezier->p2);
1301                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1302                                 bezier->c2->set_tangent(true);
1303
1304                                 bezier->signal_user_click(2).connect(
1305                                         sigc::bind(
1306                                                 sigc::mem_fun(
1307                                                         *canvas_view,
1308                                                         &studio::CanvasView::popup_param_menu_bezier
1309                                                 ),
1310                                                 value_desc
1311                                         )
1312                                 );
1313
1314                                 add_bezier(bezier);
1315                         }
1316                         else if(value_desc.get_value().is_valid())
1317                         {
1318                                 Segment segment=value_desc.get_value();
1319                                 etl::handle<Duck> duck_p,duck_c;
1320                                 synfig::String name;
1321                                 if(param_desc)
1322                                 {
1323                                         name=param_desc->get_local_name();
1324                                 }
1325                                 else
1326                                 {
1327                                         name=guid_string(value_desc);
1328                                 }
1329
1330                                 duck_p=new class Duck(segment.p1);
1331                                 duck_p->set_name(name+".P1");
1332                                 duck_p->set_type(Duck::TYPE_VERTEX);
1333                                 add_duck(duck_p);
1334
1335                                 duck_c=new class Duck(segment.t1);
1336                                 duck_c->set_name(name+".T1");
1337                                 duck_c->set_type(Duck::TYPE_TANGENT);
1338                                 add_duck(duck_c);
1339                                 duck_c->set_origin(duck_p);
1340                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1341                                 duck_c->set_tangent(true);
1342
1343                                 bezier->p1=duck_p;
1344                                 bezier->c1=duck_c;
1345
1346                                 duck_p=new class Duck(segment.p2);
1347                                 duck_p->set_name(name+".P2");
1348                                 duck_p->set_type(Duck::TYPE_VERTEX);
1349                                 add_duck(duck_p);
1350
1351                                 duck_c=new class Duck(segment.t2);
1352                                 duck_c->set_type(Duck::TYPE_TANGENT);
1353                                 duck_c->set_name(name+".T2");
1354                                 add_duck(duck_c);
1355                                 duck_c->set_origin(duck_p);
1356                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1357                                 duck_c->set_tangent(true);
1358
1359                                 bezier->p2=duck_p;
1360                                 bezier->c2=duck_c;
1361                                 add_bezier(bezier);
1362                         }
1363
1364                         return true;
1365                 }
1366                 break;
1367 */
1368         case ValueBase::TYPE_BLINEPOINT:
1369         {
1370
1371                 if(value_desc.is_value_node() &&
1372                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())
1373                 )
1374                 {
1375                         ValueNode_Composite::Handle value_node;
1376                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1377
1378                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1379                                 return false;
1380                         etl::handle<Duck> vertex_duck(last_duck());
1381                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1382                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1383                                 return false;
1384                         etl::handle<Duck> t1_duck(last_duck());
1385
1386                         t1_duck->set_origin(vertex_duck);
1387                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1388                         t1_duck->set_tangent(true);
1389
1390                         etl::handle<Duck> t2_duck;
1391
1392                         // If the tangents are split
1393                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1394                         {
1395                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1396                                         return false;
1397                                 t2_duck=last_duck();
1398                                 t2_duck->set_origin(vertex_duck);
1399                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1400                                 t2_duck->set_tangent(true);
1401                         }
1402                         else
1403                         {
1404                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1405                                         return false;
1406                                 t2_duck=last_duck();
1407                                 t2_duck->set_origin(vertex_duck);
1408                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1409                                 t2_duck->set_tangent(true);
1410                         }
1411                         return true;
1412                 }
1413
1414         }
1415         break;
1416         case ValueBase::TYPE_LIST:
1417         {
1418                 // Check for BLine
1419                 if(value_desc.is_value_node() &&
1420                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node())
1421                 )
1422                 {
1423                         ValueNode_BLine::Handle value_node;
1424                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1425
1426                         int i,first=-1;
1427
1428                         etl::handle<Bezier> bezier;
1429                         etl::handle<Duck> first_duck;
1430                         etl::handle<Duck> duck, tduck;
1431
1432                         for(i=0;i<value_node->link_count();i++)
1433                         {
1434                                 float amount(value_node->list[i].amount_at_time(get_time()));
1435                                 if(amount<0.9999f)
1436                                         continue;
1437                                 if(first==-1)first=i;
1438
1439                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1440
1441                                 ValueNode_Composite::Handle vertex_value_node(
1442                                         ValueNode_Composite::Handle::cast_dynamic(
1443                                                 value_node->get_link(i)
1444                                         )
1445                                 );
1446
1447                                 // Add the vertex duck
1448                                 if(vertex_value_node)
1449                                 {
1450                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1451                                         {
1452                                                 duck=last_duck();
1453                                                 if(i==first)
1454                                                         first_duck=duck;
1455                                                 duck->set_type(Duck::TYPE_VERTEX);
1456
1457                                                 duck->signal_user_click(2).clear();
1458                                                 duck->signal_user_click(2).connect(
1459                                                         sigc::bind(
1460                                                                 sigc::bind(
1461                                                                         sigc::mem_fun(
1462                                                                                 *canvas_view,
1463                                                                                 &studio::CanvasView::popup_param_menu
1464                                                                         ),
1465                                                                         1.0f
1466                                                                 ),
1467                                                                 synfigapp::ValueDesc(value_node,i)
1468                                                         )
1469                                                 );
1470                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1471
1472                                                 if(param_desc)
1473                                                 {
1474                                                         if(!param_desc->get_origin().empty())
1475                                                         {
1476                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1477                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1478                                                                 duck->set_origin(last_duck());
1479 /*
1480                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1481                                                                 if(value.same_type_as(synfig::Point()))
1482                                                                         duck->set_origin(value.get(synfig::Point()));
1483 */
1484                                                         }
1485                                                 }
1486                                         }
1487                                         else
1488                                                 return false;
1489                                 }
1490                                 else
1491                                 {
1492                                         duck=new Duck(bline_point.get_vertex());
1493                                         if(i==first)
1494                                                 first_duck=duck;
1495                                         duck->set_transform_stack(transform_stack);
1496                                         duck->set_editable(false);
1497                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1498                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1499
1500                                         duck->set_type(Duck::TYPE_VERTEX);
1501                                         if(param_desc)
1502                                         {
1503                                                 if(!param_desc->get_origin().empty())
1504                                                 {
1505                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1506                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1507                                                                 duck->set_origin(last_duck());
1508 /*
1509                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1510                                                                 if(value.same_type_as(synfig::Point()))
1511                                                                         duck->set_origin(value.get(synfig::Point()));
1512 */
1513                                                 }
1514                                         }
1515                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".v"));
1516                                         duck=add_similar_duck(duck);
1517 //                                      add_duck(duck);
1518                                 }
1519
1520                                 // Add the width duck if it is a parameter with a hint (ie. "width") or if it isn't a parameter
1521                                 if ((param_desc && !param_desc->get_hint().empty()) ||
1522                                         !param_desc)
1523                                 {
1524                                         etl::handle<Duck> width;
1525                                         if(add_to_ducks(synfigapp::ValueDesc(vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1526                                         {
1527                                                 width=last_duck();
1528                                                 width->set_origin(duck);
1529                                                 width->set_type(Duck::TYPE_WIDTH);
1530                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1531
1532                                                 // if the bline is a layer's parameter, scale the width duck by the layer's "width" parameter
1533                                                 if (param_desc)
1534                                                 {
1535                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1536                                                         if(value.same_type_as(synfig::Real()))
1537                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1538                                                         // if it doesn't have a "width" parameter, scale by 0.5f instead
1539                                                         else
1540                                                                 width->set_scalar(0.5f);
1541                                                 }
1542                                                 // otherwise just present the raw unscaled width
1543                                                 else
1544                                                         width->set_scalar(0.5f);
1545                                         }
1546                                         else
1547                                                 synfig::error("Unable to add width duck!");
1548                                 }
1549
1550                                 if(bezier)
1551                                 {
1552                                         // Add the tangent1 duck
1553                                         if(vertex_value_node)
1554                                         {
1555                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1556                                                         return false;
1557                                                 tduck=last_duck();
1558                                         }
1559                                         else
1560                                         {
1561                                                 tduck=new Duck(bline_point.get_tangent1());
1562                                                 tduck->set_transform_stack(transform_stack);
1563                                                 tduck->set_editable(false);
1564                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1565 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1566                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1567                                                 tduck=add_similar_duck(tduck);
1568 //                                              add_duck(duck);
1569                                         }
1570
1571                                         tduck->set_origin(duck);
1572                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1573                                         tduck->set_tangent(true);
1574
1575                                         bezier->p2=duck;
1576                                         bezier->c2=tduck;
1577
1578                                         bezier->signal_user_click(2).connect(
1579                                                 sigc::bind(
1580                                                         sigc::mem_fun(
1581                                                                 *canvas_view,
1582                                                                 &studio::CanvasView::popup_param_menu_bezier
1583                                                         ),
1584                                                         synfigapp::ValueDesc(value_node,i)
1585                                                 )
1586                                         );
1587
1588                                         duck->signal_user_click(2).clear();
1589                                         duck->signal_user_click(2).connect(
1590                                                 sigc::bind(
1591                                                         sigc::bind(
1592                                                                 sigc::mem_fun(
1593                                                                         *canvas_view,
1594                                                                         &studio::CanvasView::popup_param_menu
1595                                                                 ),
1596                                                                 1.0f
1597                                                         ),
1598                                                         synfigapp::ValueDesc(value_node,i)
1599                                                 )
1600                                         );
1601                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1602
1603                                         add_bezier(bezier);
1604                                         bezier=0;
1605                                 }
1606
1607                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1608                                         continue;
1609
1610                                 bezier=new Bezier();
1611
1612                                 // Add the tangent2 duck
1613                                 if(vertex_value_node)
1614                                 {
1615                                         int i=bline_point.get_split_tangent_flag()?5:4;
1616                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,i),canvas_view,transform_stack,0,2))
1617                                                 return false;
1618                                         tduck=last_duck();
1619                                 }
1620                                 else
1621                                 {
1622                                         if(bline_point.get_split_tangent_flag())
1623                                         {
1624                                                 tduck=new Duck(bline_point.get_tangent2());
1625                                                 tduck->set_transform_stack(transform_stack);
1626                                                 //tduck->set_name(strprintf("%x-tangent2",value_node->get_link(i).get()));
1627                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1628                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t2"));
1629                                         }
1630                                         else
1631                                         {
1632                                                 tduck=new Duck(bline_point.get_tangent1());
1633                                                 tduck->set_transform_stack(transform_stack);
1634                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1635                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1636                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^GUID::hasher(".t1"));
1637                                         }
1638                                         tduck->set_editable(false);
1639                                         tduck=add_similar_duck(tduck);
1640 //                                      add_duck(duck);
1641                                         if(param_desc)
1642                                         {
1643                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1644                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1645                                                                 duck->set_origin(last_duck());
1646 /*
1647                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1648                                                                 if(value.same_type_as(synfig::Point()))
1649                                                                         duck->set_origin(value.get(synfig::Point()));
1650 */
1651 //                                              if(!param_desc->get_origin().empty())
1652 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1653                                         }
1654                                         duck->signal_user_click(2).clear();
1655                                         duck->signal_user_click(2).connect(
1656                                                 sigc::bind(
1657                                                         sigc::bind(
1658                                                                 sigc::mem_fun(
1659                                                                         *canvas_view,
1660                                                                         &studio::CanvasView::popup_param_menu
1661                                                                 ),
1662                                                                 1.0f
1663                                                         ),
1664                                                         synfigapp::ValueDesc(value_node,0)
1665                                                 )
1666                                         );
1667                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,0));
1668
1669                                 }
1670
1671                                 tduck->set_origin(duck);
1672                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1673                                 tduck->set_tangent(true);
1674
1675                                 bezier->p1=duck;
1676                                 bezier->c1=tduck;
1677
1678                         }
1679                         // Loop if necessary
1680                         if(bezier && value_node->get_loop())
1681                         {
1682                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1683
1684                                 ValueNode_Composite::Handle vertex_value_node(
1685                                         ValueNode_Composite::Handle::cast_dynamic(
1686                                                 value_node->get_link(first)
1687                                         )
1688                                 );
1689
1690                                 // Add the vertex duck
1691                                 duck=first_duck;
1692                                 /*
1693                                 if(vertex_value_node)
1694                                 {
1695                                         if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,0),canvas_view,transform_stack))
1696                                                 return false;
1697                                         duck=last_duck();
1698                                         if(param_desc)
1699                                         {
1700                                                 if(!param_desc->get_origin().empty())
1701                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1702                                         }
1703                                         duck->set_type(Duck::TYPE_VERTEX);
1704                                 }
1705                                 else
1706                                 {
1707                                         duck=new Duck(bline_point.get_vertex());
1708                                         duck->set_transform_stack(transform_stack);
1709                                         if(param_desc)
1710                                         {
1711                                                 if(!param_desc->get_origin().empty())
1712                                                         duck->set_origin(value_desc.get_layer()->get_param(param_desc->get_origin()).get(synfig::Point()));
1713                                         }
1714                                         duck->set_editable(false);
1715                                         duck->set_name(strprintf("%x-vertex",value_node->get_link(first).get()));
1716                                         duck->set_type(Duck::TYPE_VERTEX);
1717                                         duck=add_similar_duck(duck);
1718                                 }
1719                                 */
1720
1721                                         // Add the tangent1 duck
1722                                         if(vertex_value_node)
1723                                         {
1724                                                 if(!add_to_ducks(synfigapp::ValueDesc(vertex_value_node,4),canvas_view,transform_stack))
1725                                                         return false;
1726                                                 tduck=last_duck();
1727                                         }
1728                                         else
1729                                         {
1730                                                 tduck=new Duck(bline_point.get_tangent1());
1731                                                 tduck->set_transform_stack(transform_stack);
1732                                                 tduck->set_editable(false);
1733                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1734                                                 //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1735                                                 tduck=add_similar_duck(tduck);
1736                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,first),transform_stack)^GUID::hasher(".t1"));
1737                                                 //add_duck(duck);
1738                                         }
1739
1740                                         tduck->set_origin(duck);
1741                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1742                                         tduck->set_tangent(true);
1743
1744                                         bezier->p2=duck;
1745                                         bezier->c2=tduck;
1746                                         bezier->signal_user_click(2).connect(
1747                                                 sigc::bind(
1748                                                         sigc::mem_fun(
1749                                                                 *canvas_view,
1750                                                                 &studio::CanvasView::popup_param_menu_bezier
1751                                                         ),
1752                                                         synfigapp::ValueDesc(value_node,first)
1753                                                 )
1754                                         );
1755                                         duck->signal_user_click(2).clear();
1756                                         duck->signal_user_click(2).connect(
1757                                                 sigc::bind(
1758                                                         sigc::bind(
1759                                                                 sigc::mem_fun(
1760                                                                         *canvas_view,
1761                                                                         &studio::CanvasView::popup_param_menu
1762                                                                 ),
1763                                                                 1.0f
1764                                                         ),
1765                                                         synfigapp::ValueDesc(value_node,first)
1766                                                 )
1767                                         );
1768                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1769
1770                                         add_bezier(bezier);
1771                                         bezier=0;
1772
1773                         }
1774                         return true;
1775                 }
1776                 else // Check for DynamicList
1777                 if(value_desc.is_value_node() &&
1778                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node())
1779                 )
1780                 {
1781                         ValueNode_DynamicList::Handle value_node;
1782                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1783                         int i;
1784
1785                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1786                         {
1787                                 Bezier bezier;
1788                                 for(i=0;i<value_node->link_count();i++)
1789                                 {
1790                                         if(!value_node->list[i].status_at_time(get_time()))
1791                                                 continue;
1792                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1793                                                 return false;
1794                                         etl::handle<Duck> duck(last_duck());
1795
1796                                         if(param_desc)
1797                                         {
1798                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1799                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1800                                                                 duck->set_origin(last_duck());
1801 /*
1802                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1803                                                                 if(value.same_type_as(synfig::Point()))
1804                                                                         duck->set_origin(value.get(synfig::Point()));
1805 */
1806 //                                              if(!param_desc->get_origin().empty())
1807 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1808                                         }
1809                                         duck->set_type(Duck::TYPE_VERTEX);
1810                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1811                                         bezier.p2=bezier.c2=duck;
1812
1813                                         if(i>0)
1814                                         {
1815                                                 handle<Bezier> bezier_(new Bezier());
1816                                                 bezier_->p1=bezier.p1;
1817                                                 bezier_->c1=bezier.c1;
1818                                                 bezier_->p2=bezier.p2;
1819                                                 bezier_->c2=bezier.c2;
1820                                                 add_bezier(bezier_);
1821                                                 last_bezier()->signal_user_click(2).connect(
1822                                                         sigc::bind(
1823                                                                 sigc::mem_fun(
1824                                                                         *canvas_view,
1825                                                                         &studio::CanvasView::popup_param_menu_bezier
1826                                                                 ),
1827                                                                 synfigapp::ValueDesc(value_node,i)
1828                                                         )
1829                                                 );
1830                                         }
1831                                 }
1832                         }
1833                         /*else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1834                         {
1835                                 for(i=0;i<value_node->link_count();i++)
1836                                 {
1837                                         if(!value_node->list[i].status_at_time(get_time()))
1838                                                 continue;
1839                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1840                                                 return false;
1841                                 }
1842                         }
1843                         */
1844                         else
1845                                 return false;
1846                 }
1847                 else
1848                 {
1849                         // WRITEME
1850                 }
1851
1852                 return true;
1853         }
1854
1855         break;
1856         default:
1857                 break;
1858         }
1859         return false;
1860 }