synfig-studio/src/gui/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 **      Copyright (c) 2009 Nikita Kitaev
  11 **
  12 **      This package is free software; you can redistribute it and/or
  13 **      modify it under the terms of the GNU General Public License as
  14 **      published by the Free Software Foundation; either version 2 of
  15 **      the License, or (at your option) any later version.
  16 **
  17 **      This package is distributed in the hope that it will be useful,
  18 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20 **      General Public License for more details.
  21 **      \endlegal
  22 */
  23 /* ========================================================================= */
  24
  25 /* === H E A D E R S ======================================================= */
  26
  27 #ifdef USING_PCH
  28 #       include "pch.h"
  29 #else
  30 #ifdef HAVE_CONFIG_H
  31 #       include <config.h>
  32 #endif
  33 #include <fstream>
  34 #include <iostream>
  35 #include <algorithm>
  36
  37 #include <ETL/hermite>
  38
  39 #include "duckmatic.h"
  40 #include <synfigapp/value_desc.h>
  41 #include <synfigapp/canvasinterface.h>
  42 #include <synfig/general.h>
  43 #include <synfig/paramdesc.h>
  44 #include <synfig/valuenode_timedswap.h>
  45 #include <synfig/valuenode_animated.h>
  46 #include <synfig/valuenode_composite.h>
  47 #include <synfig/valuenode_range.h>
  48 #include <synfig/valuenode_scale.h>
  49 #include <synfig/valuenode_bline.h>
  50 #include <synfig/valuenode_blinecalctangent.h>
  51 #include <synfig/valuenode_blinecalcvertex.h>
  52 #include <synfig/valuenode_blinecalcwidth.h>
  53
  54 #include <synfig/curve_helper.h>
  55
  56 #include <sigc++/retype_return.h>
  57 #include <sigc++/retype.h>
  58 #include <sigc++/hide.h>
  59 #include <sigc++/bind.h>
  60
  61 #include "canvasview.h"
  62
  63 #include "onemoment.h"
  64
  65 #include "general.h"
  66
  67 #endif
  68
  69 /* === U S I N G =========================================================== */
  70
  71 using namespace std;
  72 using namespace etl;
  73 using namespace synfig;
  74 using namespace studio;
  75
  76 /* === M A C R O S ========================================================= */
  77
  78 /* 0.33333333333333333 makes for nice short tangent handles,
  79    1.0 makes them draw as their real length */
  80 #define TANGENT_HANDLE_SCALE 0.33333333333333333
  81
  82 /* leave this alone or the bezier won't lie on top of the bline */
  83 #define TANGENT_BEZIER_SCALE 0.33333333333333333
  84
  85 /* === G L O B A L S ======================================================= */
  86
  87 /* === P R O C E D U R E S ================================================= */
  88
  89 /* === M E T H O D S ======================================================= */
  90
  91 /* === E N T R Y P O I N T ================================================= */
  92
  93 Duckmatic::Duckmatic(etl::loose_handle<synfigapp::CanvasInterface> canvas_interface):
  94         canvas_interface(canvas_interface),
  95         type_mask(Duck::TYPE_ALL-Duck::TYPE_WIDTH),
  96         grid_snap(false),
  97         guide_snap(false),
  98         grid_size(1.0/4.0,1.0/4.0),
  99         show_persistent_strokes(true)
 100 {
 101         axis_lock=false;
 102         drag_offset_=Point(0,0);
 103         clear_duck_dragger();
 104 }
 105
 106 Duckmatic::~Duckmatic()
 107 {
 108         clear_ducks();
 109
 110         if (Duck::duck_count)
 111                 synfig::error("%d ducks not yet deleted!", Duck::duck_count);
 112
 113         if (getenv("SYNFIG_DEBUG_DESTRUCTORS"))
 114                 synfig::info("Duckmatic::~Duckmatic(): Deleted");
 115 }
 116
 117 void
 118 Duckmatic::clear_ducks()
 119 {
 120         duck_data_share_map.clear();
 121         duck_map.clear();
 122
 123         //duck_list_.clear();
 124         bezier_list_.clear();
 125         stroke_list_.clear();
 126
 127         if(show_persistent_strokes)
 128                 stroke_list_=persistent_stroke_list_;
 129 }
 130
 131
 132 bool
 133 Duckmatic::duck_is_selected(const etl::handle<Duck> &duck)const
 134 {
 135         return duck && selected_ducks.count(duck->get_guid());
 136 }
 137
 138 void
 139 Duckmatic::set_grid_size(const synfig::Vector &s)
 140 {
 141         if(grid_size!=s)
 142         {
 143                 grid_size=s;
 144                 signal_grid_changed();
 145         }
 146 }
 147
 148 void
 149 Duckmatic::set_grid_snap(bool x)
 150 {
 151         if(grid_snap!=x)
 152         {
 153                 grid_snap=x;
 154                 signal_grid_changed();
 155         }
 156 }
 157
 158 void
 159 Duckmatic::set_guide_snap(bool x)
 160 {
 161         if(guide_snap!=x)
 162         {
 163                 guide_snap=x;
 164                 signal_grid_changed();
 165         }
 166 }
 167
 168 Duckmatic::GuideList::iterator
 169 Duckmatic::find_guide_x(synfig::Point pos, float radius)
 170 {
 171         GuideList::iterator iter,best(guide_list_x_.end());
 172         float dist(radius);
 173         for(iter=guide_list_x_.begin();iter!=guide_list_x_.end();++iter)
 174         {
 175                 float amount(abs(*iter-pos[0]));
 176                 if(amount<dist)
 177                 {
 178                         dist=amount;
 179                         best=iter;
 180                 }
 181         }
 182         return best;
 183 }
 184
 185 Duckmatic::GuideList::iterator
 186 Duckmatic::find_guide_y(synfig::Point pos, float radius)
 187 {
 188         GuideList::iterator iter,best(guide_list_y_.end());
 189         float dist(radius);
 190         for(iter=guide_list_y_.begin();iter!=guide_list_y_.end();++iter)
 191         {
 192                 float amount(abs(*iter-pos[1]));
 193                 if(amount<=dist)
 194                 {
 195                         dist=amount;
 196                         best=iter;
 197                 }
 198         }
 199         return best;
 200 }
 201
 202 void
 203 Duckmatic::clear_selected_ducks()
 204 {
 205         selected_ducks.clear();
 206         signal_duck_selection_changed_();
 207 }
 208
 209 etl::handle<Duckmatic::Duck>
 210 Duckmatic::get_selected_duck()const
 211 {
 212         if(selected_ducks.empty() || duck_map.empty())
 213                 return 0;
 214         return duck_map.find(*selected_ducks.begin())->second;
 215 }
 216
 217 void
 218 Duckmatic::refresh_selected_ducks()
 219 {
 220 /*
 221         std::set<etl::handle<Duck> >::iterator iter;
 222         std::set<etl::handle<Duck> > new_set;
 223         if(duck_list().empty())
 224         {
 225                 selected_duck_list.clear();
 226                 signal_duck_selection_changed_();
 227                 return;
 228         }
 229
 230         for(iter=selected_duck_list.begin();iter!=selected_duck_list.end();++iter)
 231         {
 232                 etl::handle<Duck> similar(find_similar_duck(*iter));
 233                 if(similar)
 234                 {
 235                         new_set.insert(similar);
 236                 }
 237         }
 238         selected_duck_list=new_set;
 239 */
 240         GUIDSet old_set(selected_ducks);
 241         GUIDSet::const_iterator iter;
 242
 243         for(iter=old_set.begin();iter!=old_set.end();++iter)
 244         {
 245                 if(duck_map.count(*iter)==0)
 246                         selected_ducks.erase(*iter);
 247         }
 248
 249         signal_duck_selection_changed_();
 250 }
 251
 252 bool
 253 Duckmatic::is_duck_group_selectable(const etl::handle<Duck>& x)const
 254 {
 255         const Type type(get_type_mask());
 256
 257         if (((x->get_type() && (!(type & x->get_type()))) ||
 258                  !x->get_editable()))
 259                 return false;
 260
 261         synfigapp::ValueDesc value_desc(x->get_value_desc());
 262         if(value_desc.parent_is_layer_param() && type & Duck::TYPE_POSITION)
 263         {
 264                 Layer::Handle layer(value_desc.get_layer());
 265                 String layer_name(layer->get_name());
 266
 267                 if (layer_name == "outline" || layer_name == "region" || layer_name == "plant" ||
 268                         layer_name == "polygon" || layer_name == "curve_gradient")
 269                         return false;
 270
 271                 if((layer_name=="PasteCanvas"|| layer_name=="paste_canvas") &&
 272                    !layer->get_param("children_lock").get(bool()))
 273                         return false;
 274         }
 275         else if (value_desc.parent_is_value_node())
 276         {
 277                 if (ValueNode_BLineCalcVertex::Handle::cast_dynamic(value_desc.get_value_node()))
 278                         return false;
 279                 if (value_desc.parent_is_linkable_value_node())
 280                 {
 281                         LinkableValueNode::Handle parent_value_node(value_desc.get_parent_value_node());
 282                         if (ValueNode_Composite::Handle::cast_dynamic(parent_value_node))
 283                         {
 284                                 if (parent_value_node->get_type() == ValueBase::TYPE_BLINEPOINT &&
 285                                         ValueNode_BLineCalcVertex::Handle::cast_dynamic(
 286                                                 parent_value_node->get_link("point")))
 287                                         return false;
 288                         }
 289                         else if (ValueNode_BLine::Handle::cast_dynamic(parent_value_node))
 290                         {
 291                                 ValueNode_Composite::Handle composite(ValueNode_Composite::Handle::cast_dynamic(
 292                                                                                                                   value_desc.get_value_node()));
 293                                 if (composite &&
 294                                         ValueNode_BLineCalcVertex::Handle::cast_dynamic(composite->get_link("point")))
 295                                         return false;
 296                         }
 297                 }
 298         }
 299         return true;
 300 }
 301
 302 void
 303 Duckmatic::select_all_ducks()
 304 {
 305         DuckMap::const_iterator iter;
 306         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 307                 if(is_duck_group_selectable(iter->second))
 308                         select_duck(iter->second);
 309                 else
 310                         unselect_duck(iter->second);
 311 }
 312
 313 void
 314 Duckmatic::unselect_all_ducks()
 315 {
 316         DuckMap::const_iterator iter;
 317         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 318                 unselect_duck(iter->second);
 319 }
 320
 321 void
 322 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 323 {
 324         Vector vmin, vmax;
 325         vmin[0]=std::min(tl[0],br[0]);
 326         vmin[1]=std::min(tl[1],br[1]);
 327         vmax[0]=std::max(tl[0],br[0]);
 328         vmax[1]=std::max(tl[1],br[1]);
 329
 330         DuckMap::const_iterator iter;
 331         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 332         {
 333                 Point p(iter->second->get_trans_point());
 334                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 335                    is_duck_group_selectable(iter->second))
 336                         toggle_select_duck(iter->second);
 337         }
 338 }
 339
 340 void
 341 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 342 {
 343         Vector vmin, vmax;
 344         vmin[0]=std::min(tl[0],br[0]);
 345         vmin[1]=std::min(tl[1],br[1]);
 346         vmax[0]=std::max(tl[0],br[0]);
 347         vmax[1]=std::max(tl[1],br[1]);
 348
 349 //      Type type(get_type_mask());
 350
 351         DuckMap::const_iterator iter;
 352         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 353         {
 354                 Point p(iter->second->get_trans_point());
 355                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 356                 {
 357                         if(is_duck_group_selectable(iter->second))
 358                                 select_duck(iter->second);
 359                 }
 360         }
 361 }
 362
 363 int
 364 Duckmatic::count_selected_ducks()const
 365 {
 366         return selected_ducks.size();
 367 }
 368
 369 void
 370 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 371 {
 372         if(duck)
 373         {
 374                 selected_ducks.insert(duck->get_guid());
 375                 signal_duck_selection_changed_();
 376         }
 377 }
 378
 379 DuckList
 380 Duckmatic::get_selected_ducks()const
 381 {
 382         DuckList ret;
 383         GUIDSet::const_iterator iter;
 384         const Type type(get_type_mask());
 385
 386         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 387         {
 388                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 389
 390                 if(d_iter==duck_map.end())
 391                         continue;
 392
 393                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 394                         continue;
 395
 396                 ret.push_back(d_iter->second);
 397         }
 398         return ret;
 399 }
 400
 401 DuckList
 402 Duckmatic::get_duck_list()const
 403 {
 404         DuckList ret;
 405         DuckMap::const_iterator iter;
 406         for(iter=duck_map.begin();iter!=duck_map.end();++iter) if (iter->second->get_type()&Duck::TYPE_POSITION) ret.push_back(iter->second);
 407         for(iter=duck_map.begin();iter!=duck_map.end();++iter) if (iter->second->get_type()&Duck::TYPE_VERTEX  ) ret.push_back(iter->second);
 408         for(iter=duck_map.begin();iter!=duck_map.end();++iter) if (iter->second->get_type()&Duck::TYPE_TANGENT ) ret.push_back(iter->second);
 409         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 410                 if (!(iter->second->get_type()&Duck::TYPE_POSITION) &&
 411                         !(iter->second->get_type()&Duck::TYPE_VERTEX) &&
 412                         !(iter->second->get_type()&Duck::TYPE_TANGENT))
 413                         ret.push_back(iter->second);
 414         return ret;
 415 }
 416
 417 void
 418 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 419 {
 420         if(duck && selected_ducks.count(duck->get_guid()))
 421         {
 422                 selected_ducks.erase(duck->get_guid());
 423                 signal_duck_selection_changed_();
 424         }
 425 }
 426
 427 void
 428 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 429 {
 430         if(duck_is_selected(duck))
 431                 unselect_duck(duck);
 432         else
 433                 select_duck(duck);
 434 }
 435
 436 void
 437 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 438 {
 439         if(duck_dragger_)
 440                 duck_dragger_->duck_drag(this,vector);
 441 }
 442
 443 void
 444 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 445 {
 446         if(duck_dragger_)
 447                 duck_dragger_->begin_duck_drag(this,offset);
 448
 449         //drag_offset_=offset;
 450         drag_offset_=find_duck(offset)->get_trans_point();
 451 }
 452
 453 void
 454 Duckmatic::update_ducks()
 455 {
 456         Time time(get_time());
 457         DuckList duck_list(get_duck_list());
 458         const DuckList selected_ducks(get_selected_ducks());
 459         DuckList::const_iterator iter;
 460         for (iter=selected_ducks.begin(); iter!=selected_ducks.end(); ++iter)
 461         {
 462                 etl::handle<Duck> duck(*iter);
 463                 if (duck->get_type() == Duck::TYPE_VERTEX || duck->get_type() == Duck::TYPE_POSITION)
 464                 {
 465                         ValueNode_BLineCalcVertex::Handle bline_vertex;
 466                         ValueNode_Composite::Handle composite;
 467
 468                         if ((bline_vertex = ValueNode_BLineCalcVertex::Handle::cast_dynamic(duck->get_value_desc().get_value_node())) ||
 469                                 ((composite = ValueNode_Composite::Handle::cast_dynamic(duck->get_value_desc().get_value_node())) &&
 470                                  composite->get_type() == ValueBase::TYPE_BLINEPOINT &&
 471                                  (bline_vertex = ValueNode_BLineCalcVertex::Handle::cast_dynamic(composite->get_link("point")))))
 472                         {
 473                                 DuckList::iterator iter;
 474                                 for (iter=duck_list.begin(); iter!=duck_list.end(); iter++)
 475                                         if ( (*iter)->get_origin_duck()==duck  /*&& !duck_is_selected(*iter)*/ )
 476                                         {
 477                                                 synfig::Real radius = 0.0;
 478                                                 ValueNode_BLine::Handle bline(ValueNode_BLine::Handle::cast_dynamic(bline_vertex->get_link(bline_vertex->get_link_index_from_name("bline"))));
 479                                                 Real amount = synfig::find_closest_point((*bline)(time), duck->get_point(), radius, bline->get_loop());
 480
 481                                                 int vertex_amount_index(bline_vertex->get_link_index_from_name("amount"));
 482                                                 ValueNode::Handle vertex_amount_value_node(bline_vertex->get_link(vertex_amount_index));
 483
 484
 485                                                 ValueNode::Handle duck_value_node((*iter)->get_value_desc().get_value_node());
 486                                                 if (ValueNode_BLineCalcTangent::Handle bline_tangent = ValueNode_BLineCalcTangent::Handle::cast_dynamic(duck_value_node))
 487                                                 {
 488                                                         if (bline_tangent->get_link(bline_tangent->get_link_index_from_name("amount")) == vertex_amount_value_node)
 489                                                         {
 490                                                                 switch (bline_tangent->get_type())
 491                                                                 {
 492                                                                 case ValueBase::TYPE_ANGLE:
 493                                                                 {
 494                                                                         Angle angle((*bline_tangent)(time, amount).get(Angle()));
 495                                                                         (*iter)->set_point(Point(Angle::cos(angle).get(), Angle::sin(angle).get()));
 496                                                                         (*iter)->set_rotations(Angle::deg(0)); //hack: rotations are a relative value
 497                                                                         break;
 498                                                                 }
 499                                                                 case ValueBase::TYPE_REAL:
 500                                                                         (*iter)->set_point(Point((*bline_tangent)(time, amount).get(Real()), 0));
 501                                                                         break;
 502                                                                 case ValueBase::TYPE_VECTOR:
 503                                                                         (*iter)->set_point((*bline_tangent)(time, amount).get(Vector()));
 504                                                                         break;
 505                                                                 default:
 506                                                                         break;
 507                                                                 }
 508                                                         }
 509                                                 }
 510                                                 else if (ValueNode_BLineCalcWidth::Handle bline_width = ValueNode_BLineCalcWidth::Handle::cast_dynamic(duck_value_node))
 511                                                 {
 512                                                         if (bline_width->get_link(bline_width->get_link_index_from_name("amount")) == vertex_amount_value_node)
 513                                                                 (*iter)->set_point(Point((*bline_width)(time, amount).get(Real()), 0));
 514                                                 }
 515                                         }
 516                         }
 517                 }
 518         }
 519 }
 520
 521
 522 bool
 523 Duckmatic::end_duck_drag()
 524 {
 525         if(duck_dragger_)
 526                 return duck_dragger_->end_duck_drag(this);
 527         return false;
 528 }
 529
 530 Point
 531 Duckmatic::snap_point_to_grid(const synfig::Point& x, float radius)const
 532 {
 533         Point ret(x);
 534
 535         GuideList::const_iterator guide_x,guide_y;
 536         bool has_guide_x(false), has_guide_y(false);
 537
 538         guide_x=find_guide_x(ret,radius);
 539         if(guide_x!=guide_list_x_.end())
 540                 has_guide_x=true;
 541
 542         guide_y=find_guide_y(ret,radius);
 543         if(guide_y!=guide_list_y_.end())
 544                 has_guide_y=true;
 545
 546         if(get_grid_snap())
 547         {
 548                 Point snap(
 549                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 550                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]);
 551
 552                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 553                         ret[0]=snap[0],has_guide_x=false;
 554                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 555                         ret[1]=snap[1],has_guide_y=false;
 556         }
 557
 558         if(guide_snap)
 559         {
 560                 if(has_guide_x)
 561                         ret[0]=*guide_x;
 562                 if(has_guide_y)
 563                         ret[1]=*guide_y;
 564         }
 565
 566         if(axis_lock)
 567         {
 568                 ret-=drag_offset_;
 569                 if(abs(ret[0])<abs(ret[1]))
 570                         ret[0]=0;
 571                 else
 572                         ret[1]=0;
 573                 ret+=drag_offset_;
 574         }
 575
 576         return ret;
 577 }
 578
 579 void
 580 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 581 {
 582         last_translate_=Vector(0,0);
 583         {
 584                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 585
 586                 snap=Vector(0,0);
 587         }
 588
 589         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 590         DuckList::const_iterator iter;
 591
 592         positions.clear();
 593         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 594         {
 595                 Point p((*iter)->get_trans_point());
 596                 positions.push_back(p);
 597         }
 598 }
 599
 600 bool
 601 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 602 {
 603         if(last_translate_.mag()>0.0001)
 604         {
 605                 duckmatic->signal_edited_selected_ducks();
 606                 return true;
 607         }
 608         else
 609         {
 610                 duckmatic->signal_user_click_selected_ducks(0);
 611                 return false;
 612         }
 613 }
 614
 615 void
 616 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 617 {
 618         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 619         DuckList::const_iterator iter;
 620
 621         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 622         int i;
 623         Time time(duckmatic->get_time());
 624
 625         // drag the vertex and position ducks first
 626         for (i=0,iter=selected_ducks.begin(); iter!=selected_ducks.end(); ++iter,i++)
 627                 if((*iter)->get_type() == Duck::TYPE_VERTEX || (*iter)->get_type() == Duck::TYPE_POSITION)
 628                         (*iter)->set_trans_point(positions[i]+vect, time);
 629
 630         // then drag the others
 631         for (i=0,iter=selected_ducks.begin(); iter!=selected_ducks.end(); ++iter,i++)
 632                 if ((*iter)->get_type() != Duck::TYPE_VERTEX && (*iter)->get_type() != Duck::TYPE_POSITION)
 633                         (*iter)->set_trans_point(positions[i]+vect, time);
 634
 635         // then patch up the tangents for the vertices we've moved
 636         duckmatic->update_ducks();
 637
 638         last_translate_=vect;
 639 }
 640
 641
 642 void
 643 Duckmatic::signal_user_click_selected_ducks(int button)
 644 {
 645         const DuckList ducks(get_selected_ducks());
 646         DuckList::const_iterator iter;
 647
 648         for(iter=ducks.begin();iter!=ducks.end();++iter)
 649         {
 650                 (*iter)->signal_user_click(button)();
 651         }
 652 }
 653
 654
 655 void
 656 Duckmatic::signal_edited_selected_ducks()
 657 {
 658         const DuckList ducks(get_selected_ducks());
 659         DuckList::const_iterator iter;
 660
 661         synfig::GUIDSet old_set(selected_ducks);
 662
 663         // If we have more than 20 things to move, then display
 664         // something to explain that it may take a moment
 665         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 666
 667         // Go ahead and call everyone's signals
 668         for(iter=ducks.begin();iter!=ducks.end();++iter)
 669         {
 670                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 671                 {
 672                         if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 673                         {
 674                                 selected_ducks=old_set;
 675                                 throw String("Bad edit");
 676                         }
 677                 }
 678                 else if (App::restrict_radius_ducks &&
 679                                  (*iter)->is_radius())
 680                 {
 681                         Point point((*iter)->get_point());
 682                         bool changed = false;
 683
 684                         if (point[0] < 0)
 685                         {
 686                                 point[0] = 0;
 687                                 changed = true;
 688                         }
 689                         if (point[1] < 0)
 690                         {
 691                                 point[1] = 0;
 692                                 changed = true;
 693                         }
 694
 695                         if (changed) (*iter)->set_point(point);
 696
 697                         if(!(*iter)->signal_edited()(point))
 698                         {
 699                                 selected_ducks=old_set;
 700                                 throw String("Bad edit");
 701                         }
 702                 }
 703                 else
 704                 {
 705                         if(!(*iter)->signal_edited()((*iter)->get_point()))
 706                         {
 707                                 selected_ducks=old_set;
 708                                 throw String("Bad edit");
 709                         }
 710                 }
 711         }
 712         selected_ducks=old_set;
 713 }
 714
 715
 716 bool
 717 Duckmatic::on_duck_changed(const synfig::Point &value,const synfigapp::ValueDesc& value_desc)
 718 {
 719         switch(value_desc.get_value_type())
 720         {
 721         case ValueBase::TYPE_REAL:
 722                 return canvas_interface->change_value(value_desc,value.mag());
 723         case ValueBase::TYPE_ANGLE:
 724                 return canvas_interface->change_value(value_desc,Angle::tan(value[1],value[0]));
 725         default:
 726                 return canvas_interface->change_value(value_desc,value);
 727         }
 728 }
 729
 730 bool
 731 Duckmatic::on_duck_angle_changed(const synfig::Angle &rotation,const synfigapp::ValueDesc& value_desc)
 732 {
 733         // \todo will this really always be the case?
 734         assert(value_desc.get_value_type() == ValueBase::TYPE_ANGLE);
 735         return canvas_interface->change_value(value_desc, value_desc.get_value(get_time()).get(Angle()) + rotation);
 736 }
 737
 738 void
 739 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 740 {
 741         //if(!duck_map.count(duck->get_guid()))
 742         {
 743                 if(duck_data_share_map.count(duck->get_data_guid()))
 744                 {
 745                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 746                 }
 747                 else
 748                 {
 749                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 750                         duck->set_shared_point(point);
 751                         duck_data_share_map[duck->get_data_guid()]=point;
 752                 }
 753
 754                 duck_map.insert(duck);
 755         }
 756
 757         last_duck_guid=duck->get_guid();
 758 }
 759
 760 void
 761 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 762 {
 763         bezier_list_.push_back(bezier);
 764 }
 765
 766 void
 767 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 768 {
 769         assert(stroke_point_list);
 770
 771         std::list<etl::handle<Stroke> >::iterator iter;
 772
 773         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 774         {
 775                 if((*iter)->stroke_data==stroke_point_list)
 776                         return;
 777         }
 778
 779         etl::handle<Stroke> stroke(new Stroke());
 780
 781         stroke->stroke_data=stroke_point_list;
 782         stroke->color=color;
 783
 784         stroke_list_.push_back(stroke);
 785 }
 786
 787 void
 788 Duckmatic::add_persistent_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 789 {
 790         add_stroke(stroke_point_list,color);
 791         persistent_stroke_list_.push_back(stroke_list_.back());
 792 }
 793
 794 void
 795 Duckmatic::clear_persistent_strokes()
 796 {
 797         persistent_stroke_list_.clear();
 798 }
 799
 800 void
 801 Duckmatic::set_show_persistent_strokes(bool x)
 802 {
 803         if(x!=show_persistent_strokes)
 804         {
 805                 show_persistent_strokes=x;
 806                 if(x)
 807                         stroke_list_=persistent_stroke_list_;
 808                 else
 809                         stroke_list_.clear();
 810         }
 811 }
 812
 813 void
 814 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 815 {
 816         duck_map.erase(duck->get_guid());
 817 }
 818
 819 etl::handle<Duckmatic::Duck>
 820 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 821 {
 822         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 823         if(iter!=duck_map.end())
 824                 return iter->second;
 825         return 0;
 826
 827 /*      std::list<handle<Duck> >::reverse_iterator iter;
 828
 829         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 830         {
 831                 if(*iter!=duck && **iter==*duck)
 832                 {
 833                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 834                         return *iter;
 835                 }
 836         }
 837         return 0;
 838 */
 839 }
 840
 841 etl::handle<Duckmatic::Duck>
 842 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 843 {
 844         etl::handle<Duck> similar(find_similar_duck(duck));
 845         if(!similar)
 846         {
 847                 add_duck(duck);
 848                 return duck;
 849         }
 850         return similar;
 851 }
 852
 853 void
 854 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 855 {
 856         std::list<handle<Bezier> >::iterator iter;
 857
 858         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 859         {
 860                 if(*iter==bezier)
 861                 {
 862                         bezier_list_.erase(iter);
 863                         return;
 864                 }
 865         }
 866         synfig::warning("Unable to find bezier to erase!");
 867 }
 868
 869 etl::handle<Duckmatic::Duck>
 870 Duckmatic::last_duck()const
 871 {
 872         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 873         if(iter!=duck_map.end())
 874                 return iter->second;
 875         return 0;
 876 }
 877
 878 etl::handle<Duckmatic::Bezier>
 879 Duckmatic::last_bezier()const
 880 {
 881         return bezier_list_.back();
 882 }
 883
 884 etl::handle<Duckmatic::Duck>
 885 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 886 {
 887         if(radius==0)radius=10000000;
 888
 889         if(type==Duck::TYPE_DEFAULT)
 890                 type=get_type_mask();
 891
 892         Real closest(10000000);
 893         etl::handle<Duck> ret;
 894
 895         DuckMap::const_iterator iter;
 896
 897         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 898         {
 899                 const Duck::Handle& duck(iter->second);
 900
 901                 if(duck->get_ignore() ||
 902                    (duck->get_type() && !(type & duck->get_type())))
 903                         continue;
 904
 905                 Real dist((duck->get_trans_point()-point).mag_squared());
 906
 907                 if(duck->get_type()&Duck::TYPE_VERTEX)
 908                         dist*=1.0001;
 909                 else if(duck->get_type()&Duck::TYPE_TANGENT && duck->get_scalar()>0)
 910                         dist*=1.00005;
 911                 else if(duck->get_type()&Duck::TYPE_RADIUS)
 912                         dist*=0.9999;
 913
 914                 if(dist<=closest)
 915                 {
 916                         closest=dist;
 917                         ret=duck;
 918                 }
 919         }
 920
 921         if(radius==0 || closest<radius*radius)
 922                 return ret;
 923
 924         return 0;
 925 }
 926
 927 etl::handle<Duckmatic::Bezier>
 928 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 929 {
 930         return find_bezier(point,radius,radius,location);
 931 }
 932
 933 etl::handle<Duckmatic::Bezier>
 934 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 935 {
 936         if(radius==0)radius=10000000;
 937         Real closest(10000000);
 938         etl::handle<Bezier> ret;
 939
 940         bezier<Point>   curve;
 941
 942         Real    d,step;
 943         float   time = 0;
 944         float   best_time = 0;
 945
 946         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 947         {
 948                 curve[0] = (*iter)->p1->get_trans_point();
 949                 curve[1] = (*iter)->c1->get_trans_point();
 950                 curve[2] = (*iter)->c2->get_trans_point();
 951                 curve[3] = (*iter)->p2->get_trans_point();
 952                 curve.sync();
 953
 954 #if 0
 955                 // I don't know why this doesn't work
 956                 time=curve.find_closest(pos,6);
 957                 d=((curve(time)-pos).mag_squared());
 958
 959 #else
 960                 //set the step size based on the size of the picture
 961                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 962
 963                 step = d/(2*scale); //want to make the distance between lines happy
 964
 965                 step = max(step,0.01); //100 samples should be plenty
 966                 step = min(step,0.1); //10 is minimum
 967
 968                 d = find_closest(curve,pos,step,&closest,&time);
 969 #endif
 970
 971                 if(d < closest)
 972                 {
 973                         closest = d;
 974                         ret = *iter;
 975                         best_time=time;
 976                 }
 977         }
 978
 979         if(closest < radius*radius)
 980         {
 981                 if(location)
 982                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 983
 984                 return ret;
 985         }
 986
 987         return 0;
 988 }
 989
 990 bool
 991 Duckmatic::save_sketch(const synfig::String& filename)const
 992 {
 993         ChangeLocale change_locale(LC_NUMERIC, "C");
 994         std::ofstream file(filename.c_str());
 995
 996         if(!file)return false;
 997
 998         file<<"SKETCH"<<endl;
 999
1000         std::list<etl::handle<Stroke> >::const_iterator iter;
1001
1002         for(iter=persistent_stroke_list_.begin();iter!=persistent_stroke_list_.end();++iter)
1003         {
1004                 file<<"C "
1005                         <<(*iter)->color.get_r()<<' '
1006                         <<(*iter)->color.get_g()<<' '
1007                         <<(*iter)->color.get_b()
1008                 <<endl;
1009                 std::list<synfig::Point>::const_iterator viter;
1010                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
1011                 {
1012                         file<<"V "
1013                                 <<(*viter)[0]<<' '
1014                                 <<(*viter)[1]
1015                         <<endl;
1016                 }
1017         }
1018         if(!file)return false;
1019         sketch_filename_=filename;
1020         signal_sketch_saved_();
1021         return true;
1022 }
1023
1024 bool
1025 Duckmatic::load_sketch(const synfig::String& filename)
1026 {
1027         ChangeLocale change_locale(LC_NUMERIC, "C");
1028         std::ifstream file(filename.c_str());
1029
1030         if(!file)
1031                 return false;
1032
1033         std::string line;
1034         getline(file,line);
1035
1036         if(line!="SKETCH")
1037         {
1038                 synfig::error("Not a sketch");
1039                 return false;
1040         }
1041
1042         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
1043
1044         while(file)
1045         {
1046                 getline(file,line);
1047
1048                 if(line.empty())
1049                         continue;
1050
1051                 switch(line[0])
1052                 {
1053                 case 'C':
1054                 case 'c':
1055                         {
1056                                 stroke_data.spawn();
1057                                 float r,g,b;
1058                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
1059                                 {
1060                                         synfig::warning("Bad color line \"%s\"",line.c_str());
1061                                         r=0;g=0;b=0;
1062                                 }
1063                                 add_persistent_stroke(stroke_data, synfig::Color(r,g,b));
1064                         }
1065                         break;
1066                 case 'V':
1067                 case 'v':
1068                         if(!stroke_data)
1069                         {
1070                                 stroke_data.spawn();
1071                                 add_persistent_stroke(stroke_data, synfig::Color(0,0,0));
1072                         }
1073                         float x,y;
1074                         if(!strscanf(line,"V %f %f",&x, &y))
1075                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
1076                         else
1077                                 stroke_data->push_back(synfig::Vector(x,y));
1078                         break;
1079                 default:
1080                         synfig::warning("Unexpected sketch token '%c'",line[0]);
1081                         break;
1082                 }
1083         }
1084
1085         sketch_filename_=filename;
1086         return true;
1087 }
1088
1089 Duckmatic::Push::Push(Duckmatic *duckmatic_):
1090         duckmatic_(duckmatic_)
1091 {
1092         duck_map=duckmatic_->duck_map;
1093         bezier_list_=duckmatic_->bezier_list_;
1094         duck_data_share_map=duckmatic_->duck_data_share_map;
1095         stroke_list_=duckmatic_->stroke_list_;
1096         duck_dragger_=duckmatic_->duck_dragger_;
1097         needs_restore=true;
1098 }
1099
1100 Duckmatic::Push::~Push()
1101 {
1102         if(needs_restore)
1103                 restore();
1104 }
1105
1106 void
1107 Duckmatic::Push::restore()
1108 {
1109         duckmatic_->duck_map=duck_map;
1110         duckmatic_->bezier_list_=bezier_list_;
1111         duckmatic_->duck_data_share_map=duck_data_share_map;
1112         duckmatic_->stroke_list_=stroke_list_;
1113         duckmatic_->duck_dragger_=duck_dragger_;
1114         needs_restore=false;
1115 }
1116
1117 inline String guid_string(const synfigapp::ValueDesc& x)
1118 {
1119         if(x.parent_is_layer_param())
1120                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
1121         //if(x.is_value_node())
1122                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
1123 }
1124
1125 inline synfig::GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
1126 {
1127         synfig::GUID ret(0);
1128
1129         if(x.parent_is_layer_param())
1130         {
1131                 ret=x.get_layer()->get_guid()^synfig::GUID::hasher(x.get_param_name());
1132         }
1133         else
1134         {
1135                 ret=x.get_value_node()->get_guid();
1136         }
1137
1138         ret^=transform_stack.get_guid();
1139         return ret;
1140 }
1141
1142 /*
1143 Duck::Handle
1144 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)
1145 {
1146         synfig::GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(modifier));
1147         etl::handle<Duck> duck=new Duck();
1148
1149         return duck;
1150 }
1151 */
1152
1153 bool
1154 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)
1155 {
1156         ValueBase::Type type=value_desc.get_value_type();
1157 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
1158         switch(type)
1159         {
1160         case ValueBase::TYPE_REAL:
1161
1162                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1163                 {
1164                         etl::handle<Duck> duck=new Duck();
1165                         duck->set_transform_stack(transform_stack);
1166                         duck->set_radius(true);
1167                         duck->set_type(Duck::TYPE_RADIUS);
1168
1169                         // put the duck on the right hand side of the center
1170                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()), 0));
1171                         duck->set_name(guid_string(value_desc));
1172                         if(value_desc.is_value_node())
1173                         {
1174                                 // If the ValueNode can be directly manipulated,
1175                                 // then set it as so.
1176                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1177                         }
1178                         else
1179                         {
1180                                 duck->set_editable(true);
1181                         }
1182
1183                         if(param_desc && param_desc!=REAL_COOKIE)
1184                         {
1185                                 if(!param_desc->get_origin().empty())
1186                                 {
1187                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1188                                         /*
1189                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1190                                         */
1191                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1192                                         duck->set_origin(last_duck());
1193                                 }
1194                                 duck->set_scalar(param_desc->get_scalar());
1195                         }
1196
1197                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_REAL:
1198                         duck->signal_edited().connect(
1199                                 sigc::bind(
1200                                         sigc::mem_fun(
1201                                                 *this,
1202                                                 &studio::Duckmatic::on_duck_changed),
1203                                         value_desc));
1204                         duck->set_value_desc(value_desc);
1205
1206                         duck->signal_user_click(2).connect(
1207                                 sigc::bind(
1208                                         sigc::bind(
1209                                                 sigc::bind(
1210                                                         sigc::mem_fun(
1211                                                                 *canvas_view,
1212                                                                 &studio::CanvasView::popup_param_menu),
1213                                                         false),
1214                                                 0.0f),
1215                                         value_desc));
1216
1217                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(multiple));
1218
1219                         add_duck(duck);
1220
1221                         return true;
1222                 }
1223                 break;
1224
1225         case ValueBase::TYPE_ANGLE:
1226
1227                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1228                 {
1229                         etl::handle<Duck> duck=new Duck();
1230                         duck->set_type(Duck::TYPE_ANGLE);
1231                         duck->set_transform_stack(transform_stack);
1232                         synfig::Angle angle;
1233
1234                         angle=value_desc.get_value(get_time()).get(Angle());
1235                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1236                         duck->set_name(guid_string(value_desc));
1237                         if(value_desc.is_value_node())
1238                         {
1239                                 ValueNode::Handle value_node=value_desc.get_value_node();
1240                                 //duck->set_name(strprintf("%x",value_node.get()));
1241
1242                                 // If the ValueNode can be directly manipulated,
1243                                 // then set it as so.
1244                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1245                         }
1246                         else
1247                         {
1248                                 //angle=(value_desc.get_value().get(Angle()));
1249                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1250                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1251                                 duck->set_editable(true);
1252                         }
1253
1254                         if(param_desc && param_desc!=REAL_COOKIE)
1255                         {
1256                                 if(!param_desc->get_origin().empty())
1257                                 {
1258                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1259                                         /*
1260                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1261                                         */
1262                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1263                                         duck->set_origin(last_duck());
1264                                 }
1265                                 duck->set_scalar(param_desc->get_scalar());
1266                         }
1267
1268                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_ANGLE:
1269                         duck->signal_edited_angle().clear();
1270                         duck->signal_edited_angle().connect(
1271                                 sigc::bind(
1272                                         sigc::mem_fun(
1273                                                 *this,
1274                                                 &studio::Duckmatic::on_duck_angle_changed),
1275                                         value_desc));
1276                         duck->set_value_desc(value_desc);
1277
1278                         duck->signal_user_click(2).connect(
1279                                 sigc::bind(
1280                                         sigc::bind(
1281                                                 sigc::bind(
1282                                                         sigc::mem_fun(
1283                                                                 *canvas_view,
1284                                                                 &studio::CanvasView::popup_param_menu),
1285                                                         false),
1286                                                 0.0f),
1287                                         value_desc));
1288                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(multiple));
1289
1290                         add_duck(duck);
1291
1292                         return true;
1293                 }
1294                 break;
1295
1296         case ValueBase::TYPE_VECTOR:
1297                 {
1298                         etl::handle<Duck> duck=new Duck();
1299                         duck->set_transform_stack(transform_stack);
1300
1301                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1302                         duck->set_name(guid_string(value_desc));
1303                         if(value_desc.is_value_node())
1304                         {
1305                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1306
1307                                 // If the ValueNode can be directly manipulated,
1308                                 // then set it as so.
1309                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1310                         }
1311                         else
1312                         {
1313                                 //duck->set_point(value_desc.get_value().get(Point()));
1314                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1315                                 duck->set_editable(true);
1316                         }
1317
1318                         // If we were passed a parameter description
1319                         if(param_desc)
1320                         {
1321                                 if(!param_desc->get_connect().empty())
1322                                 {
1323                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1324                                         Duck::Handle connect_duck;
1325                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^synfig::GUID::hasher(0))!=duck_map.end())
1326                                         {
1327                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^synfig::GUID::hasher(0)];
1328                                         }
1329                                         else
1330                                         {
1331                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1332                                                 connect_duck=last_duck();
1333                                         }
1334                                         duck->set_connect_duck(connect_duck);
1335                                 }
1336                                 if(!param_desc->get_box().empty())
1337                                 {
1338                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1339                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1340                                         duck->set_box_duck(last_duck());
1341                                 }
1342
1343                                 // If we have an origin
1344                                 if(!param_desc->get_origin().empty())
1345                                 {
1346                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1347                                         /*
1348                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1349                                         */
1350                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1351                                         duck->set_origin(last_duck());
1352                                         duck->set_type(Duck::TYPE_VERTEX);
1353                                 }
1354                                 else
1355                                         duck->set_type(Duck::TYPE_POSITION);
1356
1357                                 duck->set_scalar(param_desc->get_scalar());
1358                         }
1359                         else
1360                                 duck->set_type(Duck::TYPE_POSITION);
1361
1362                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_VECTOR:
1363                         duck->signal_edited().connect(
1364                                 sigc::bind(
1365                                         sigc::mem_fun(
1366                                                 *this,
1367                                                 &studio::Duckmatic::on_duck_changed),
1368                                         value_desc));
1369                         duck->set_value_desc(value_desc);
1370
1371                         duck->signal_user_click(2).connect(
1372                                 sigc::bind(
1373                                         sigc::bind(
1374                                                 sigc::bind(
1375                                                         sigc::mem_fun(
1376                                                                 *canvas_view,
1377                                                                 &studio::CanvasView::popup_param_menu),
1378                                                         false),
1379                                                 1.0f),
1380                                         value_desc));
1381                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(multiple));
1382                         add_duck(duck);
1383
1384                         return true;
1385                 }
1386                 break;
1387         case ValueBase::TYPE_SEGMENT:
1388                 {
1389                         etl::handle<Bezier> bezier(new Bezier());
1390                         ValueNode_Composite::Handle value_node;
1391
1392                         if(value_desc.is_value_node() &&
1393                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())))
1394                         {
1395                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1396                                         return false;
1397                                 bezier->p1=last_duck();
1398                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1399                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1400                                         return false;
1401                                 bezier->c1=last_duck();
1402                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1403                                 bezier->c1->set_origin(bezier->p1);
1404                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1405                                 bezier->c1->set_tangent(true);
1406
1407                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1408                                         return false;
1409                                 bezier->p2=last_duck();
1410                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1411                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1412                                         return false;
1413                                 bezier->c2=last_duck();
1414                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1415                                 bezier->c2->set_origin(bezier->p2);
1416                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1417                                 bezier->c2->set_tangent(true);
1418
1419                                 bezier->signal_user_click(2).connect(
1420                                         sigc::bind(
1421                                                 sigc::mem_fun(
1422                                                         *canvas_view,
1423                                                         &studio::CanvasView::popup_param_menu_bezier),
1424                                                 value_desc));
1425
1426                                 add_bezier(bezier);
1427                         }
1428                         else if(value_desc.get_value().is_valid())
1429                         {
1430                                 Segment segment=value_desc.get_value();
1431                                 etl::handle<Duck> duck_p,duck_c;
1432                                 synfig::String name;
1433                                 if(param_desc)
1434                                 {
1435                                         name=param_desc->get_local_name();
1436                                 }
1437                                 else
1438                                 {
1439                                         name=guid_string(value_desc);
1440                                 }
1441
1442                                 duck_p=new Duck(segment.p1);
1443                                 duck_p->set_name(name+".P1");
1444                                 duck_p->set_type(Duck::TYPE_VERTEX);
1445                                 add_duck(duck_p);
1446
1447                                 duck_c=new Duck(segment.t1);
1448                                 duck_c->set_name(name+".T1");
1449                                 duck_c->set_type(Duck::TYPE_TANGENT);
1450                                 add_duck(duck_c);
1451                                 duck_c->set_origin(duck_p);
1452                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1453                                 duck_c->set_tangent(true);
1454
1455                                 bezier->p1=duck_p;
1456                                 bezier->c1=duck_c;
1457
1458                                 duck_p=new Duck(segment.p2);
1459                                 duck_p->set_name(name+".P2");
1460                                 duck_p->set_type(Duck::TYPE_VERTEX);
1461                                 add_duck(duck_p);
1462
1463                                 duck_c=new Duck(segment.t2);
1464                                 duck_c->set_type(Duck::TYPE_TANGENT);
1465                                 duck_c->set_name(name+".T2");
1466                                 add_duck(duck_c);
1467                                 duck_c->set_origin(duck_p);
1468                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1469                                 duck_c->set_tangent(true);
1470
1471                                 bezier->p2=duck_p;
1472                                 bezier->c2=duck_c;
1473                                 add_bezier(bezier);
1474                         }
1475
1476                         return true;
1477                 }
1478                 break;
1479         case ValueBase::TYPE_BLINEPOINT:
1480         {
1481
1482                 if(value_desc.is_value_node() &&
1483                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1484                 {
1485                         ValueNode_Composite::Handle value_node;
1486                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1487
1488                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1489                                 return false;
1490                         etl::handle<Duck> vertex_duck(last_duck());
1491                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1492                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1493                                 return false;
1494                         etl::handle<Duck> t1_duck(last_duck());
1495
1496                         t1_duck->set_origin(vertex_duck);
1497                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1498                         t1_duck->set_tangent(true);
1499
1500                         etl::handle<Duck> t2_duck;
1501
1502                         // If the tangents are split
1503                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1504                         {
1505                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1506                                         return false;
1507                                 t2_duck=last_duck();
1508                                 t2_duck->set_origin(vertex_duck);
1509                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1510                                 t2_duck->set_tangent(true);
1511                         }
1512                         else
1513                         {
1514                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1515                                         return false;
1516                                 t2_duck=last_duck();
1517                                 t2_duck->set_origin(vertex_duck);
1518                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1519                                 t2_duck->set_tangent(true);
1520                         }
1521                         return true;
1522                 }
1523
1524         }
1525         break;
1526         case ValueBase::TYPE_LIST:
1527         {
1528                 // Check for BLine
1529                 if (value_desc.is_value_node() &&
1530                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node()))
1531                 {
1532                         ValueNode_BLine::Handle value_node;
1533                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1534
1535                         int i,first=-1;
1536
1537                         etl::handle<Bezier> bezier;
1538                         etl::handle<Duck> first_duck;
1539                         etl::handle<Duck> duck, tduck;
1540
1541                         for (i = 0; i < value_node->link_count(); i++)
1542                         {
1543                                 float amount(value_node->list[i].amount_at_time(get_time()));
1544
1545                                 // skip vertices that aren't fully on
1546                                 if (amount < 0.9999f)
1547                                         continue;
1548
1549                                 // remember the index of the first vertex we didn't skip
1550                                 if (first == -1)
1551                                         first = i;
1552
1553                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1554
1555                                 // try casting the vertex to Composite - this tells us whether it is composite or not
1556                                 ValueNode_Composite::Handle composite_vertex_value_node(
1557                                         ValueNode_Composite::Handle::cast_dynamic(value_node->get_link(i)));
1558
1559                                 // add the vertex duck - it's a composite
1560                                 if(composite_vertex_value_node)
1561                                 {
1562                                         if (add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,0),canvas_view,transform_stack))
1563                                         {
1564                                                 duck=last_duck();
1565                                                 if(i==first)
1566                                                         first_duck=duck;
1567                                                 duck->set_type(Duck::TYPE_VERTEX);
1568
1569                                                 duck->signal_user_click(2).clear();
1570                                                 duck->signal_user_click(2).connect(
1571                                                         sigc::bind(
1572                                                                 sigc::bind(
1573                                                                         sigc::bind(
1574                                                                                 sigc::mem_fun(
1575                                                                                         *canvas_view,
1576                                                                                         &studio::CanvasView::popup_param_menu),
1577                                                                                 false),
1578                                                                         1.0f),
1579                                                                 synfigapp::ValueDesc(value_node,i)));
1580                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1581
1582                                                 if(param_desc)
1583                                                 {
1584                                                         if(!param_desc->get_origin().empty())
1585                                                         {
1586                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1587                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1588                                                                 duck->set_origin(last_duck());
1589 /*
1590                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1591                                                                 if(value.same_type_as(synfig::Point()))
1592                                                                         duck->set_origin(value.get(synfig::Point()));
1593 */
1594                                                         }
1595                                                 }
1596                                         }
1597                                         else
1598                                                 return false;
1599                                 }
1600                                 // else it's not a composite
1601                                 else
1602                                 {
1603                                         duck=new Duck(bline_point.get_vertex());
1604                                         if(i==first)
1605                                                 first_duck=duck;
1606                                         duck->set_transform_stack(transform_stack);
1607                                         duck->set_editable(false);
1608                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1609                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1610
1611                                         duck->set_type(Duck::TYPE_VERTEX);
1612                                         if(param_desc)
1613                                         {
1614                                                 if(!param_desc->get_origin().empty())
1615                                                 {
1616                                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1617                                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1618                                                         duck->set_origin(last_duck());
1619 /*
1620                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1621                                                         if(value.same_type_as(synfig::Point()))
1622                                                                 duck->set_origin(value.get(synfig::Point()));
1623 */
1624                                                 }
1625                                         }
1626                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^synfig::GUID::hasher(".v"));
1627                                         duck=add_similar_duck(duck);
1628 //                                      add_duck(duck);
1629                                 }
1630
1631                                 // Add the width duck if it is a parameter with a hint (ie. "width") or if it isn't a parameter
1632                                 if ((param_desc && !param_desc->get_hint().empty()) ||
1633                                         !param_desc)
1634                                 {
1635                                         etl::handle<Duck> width;
1636                                         if (add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1637                                         {
1638                                                 width=last_duck();
1639                                                 width->set_origin(duck);
1640                                                 width->set_type(Duck::TYPE_WIDTH);
1641                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1642
1643                                                 // if the bline is a layer's parameter, scale the width duck by the layer's "width" parameter
1644                                                 if (param_desc)
1645                                                 {
1646                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1647                                                         if(value.same_type_as(synfig::Real()))
1648                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1649                                                         // if it doesn't have a "width" parameter, scale by 0.5f instead
1650                                                         else
1651                                                                 width->set_scalar(0.5f);
1652                                                 }
1653                                                 // otherwise just present the raw unscaled width
1654                                                 else
1655                                                         width->set_scalar(0.5f);
1656                                         }
1657                                         else
1658                                                 synfig::error("Unable to add width duck!");
1659                                 }
1660
1661                                 // each bezier uses t2 of one point and t1 of the next
1662                                 // the first time through this loop we won't have the t2 duck from the previous vertex
1663                                 // and so we don't make a bezier.  instead we skip on to t2 for this point
1664                                 if(bezier)
1665                                 {
1666                                         // Add the tangent1 duck
1667                                         if(composite_vertex_value_node)
1668                                         {
1669                                                 if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
1670                                                         return false;
1671                                                 tduck=last_duck();
1672                                         }
1673                                         else
1674                                         {
1675                                                 tduck=new Duck(bline_point.get_tangent1());
1676                                                 tduck->set_transform_stack(transform_stack);
1677                                                 tduck->set_editable(false);
1678                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1679 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1680                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^synfig::GUID::hasher(".t1"));
1681                                                 tduck=add_similar_duck(tduck);
1682 //                                              add_duck(duck);
1683                                         }
1684
1685                                         tduck->set_origin(duck);
1686                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1687                                         tduck->set_tangent(true);
1688
1689                                         bezier->p2=duck;
1690                                         bezier->c2=tduck;
1691
1692                                         bezier->signal_user_click(2).connect(
1693                                                 sigc::bind(
1694                                                         sigc::mem_fun(
1695                                                                 *canvas_view,
1696                                                                 &studio::CanvasView::popup_param_menu_bezier),
1697                                                         synfigapp::ValueDesc(value_node,i)));
1698
1699                                         duck->signal_user_click(2).clear();
1700                                         duck->signal_user_click(2).connect(
1701                                                 sigc::bind(
1702                                                         sigc::bind(
1703                                                                 sigc::bind(
1704                                                                         sigc::mem_fun(
1705                                                                                 *canvas_view,
1706                                                                                 &studio::CanvasView::popup_param_menu),
1707                                                                         false),
1708                                                                 1.0f),
1709                                                         synfigapp::ValueDesc(value_node,i)));
1710                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1711
1712                                         add_bezier(bezier);
1713                                         bezier=0;
1714                                 }
1715
1716                                 // don't start a new bezier for the last point in the line if we're not looped
1717                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1718                                         continue;
1719
1720                                 bezier=new Bezier();
1721
1722                                 // Add the tangent2 duck
1723                                 if(composite_vertex_value_node)
1724                                 {
1725                                         int i=bline_point.get_split_tangent_flag()?5:4;
1726                                         if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,i),canvas_view,transform_stack,0,2))
1727                                                 return false;
1728                                         tduck=last_duck();
1729                                 }
1730                                 else
1731                                 {
1732                                         if(bline_point.get_split_tangent_flag())
1733                                                 tduck=new Duck(bline_point.get_tangent2());
1734                                         else
1735                                                 tduck=new Duck(bline_point.get_tangent1());
1736
1737                                         tduck->set_transform_stack(transform_stack);
1738                                         tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1739                                         tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^synfig::GUID::hasher(".t2"));
1740                                         tduck->set_editable(false);
1741                                         tduck=add_similar_duck(tduck);
1742 //                                      add_duck(duck);
1743                                         if(param_desc)
1744                                         {
1745                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1746                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1747                                                 duck->set_origin(last_duck());
1748 /*
1749                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1750                                                 if(value.same_type_as(synfig::Point()))
1751                                                         duck->set_origin(value.get(synfig::Point()));
1752 */
1753 //                                              if(!param_desc->get_origin().empty())
1754 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1755                                         }
1756                                         duck->signal_user_click(2).clear();
1757                                         duck->signal_user_click(2).connect(
1758                                                 sigc::bind(
1759                                                         sigc::bind(
1760                                                                 sigc::bind(
1761                                                                         sigc::mem_fun(
1762                                                                                 *canvas_view,
1763                                                                                 &studio::CanvasView::popup_param_menu),
1764                                                                         false),
1765                                                                 1.0f),
1766                                                         synfigapp::ValueDesc(value_node,i)));
1767                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1768
1769                                 }
1770
1771                                 tduck->set_origin(duck);
1772                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1773                                 tduck->set_tangent(true);
1774
1775                                 bezier->p1=duck;
1776                                 bezier->c1=tduck;
1777                         }
1778
1779                         // Loop if necessary
1780                         if(bezier && value_node->get_loop())
1781                         {
1782                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1783
1784                                 ValueNode_Composite::Handle composite_vertex_value_node(
1785                                         ValueNode_Composite::Handle::cast_dynamic(
1786                                                 value_node->get_link(first)));
1787
1788                                 // Add the vertex duck
1789                                 duck=first_duck;
1790
1791                                 // Add the tangent1 duck
1792                                 if(composite_vertex_value_node)
1793                                 {
1794                                         if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
1795                                                 return false;
1796                                         tduck=last_duck();
1797                                 }
1798                                 else
1799                                 {
1800                                         tduck=new Duck(bline_point.get_tangent1());
1801                                         tduck->set_transform_stack(transform_stack);
1802                                         tduck->set_editable(false);
1803                                         tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1804                                         //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1805                                         tduck=add_similar_duck(tduck);
1806                                         tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,first),transform_stack)^synfig::GUID::hasher(".t1"));
1807                                         //add_duck(duck);
1808                                 }
1809
1810                                 tduck->set_origin(duck);
1811                                 tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1812                                 tduck->set_tangent(true);
1813
1814                                 bezier->p2=duck;
1815                                 bezier->c2=tduck;
1816
1817                                 bezier->signal_user_click(2).connect(
1818                                         sigc::bind(
1819                                                 sigc::mem_fun(
1820                                                         *canvas_view,
1821                                                         &studio::CanvasView::popup_param_menu_bezier),
1822                                                 synfigapp::ValueDesc(value_node,first)));
1823
1824                                 duck->signal_user_click(2).clear();
1825                                 duck->signal_user_click(2).connect(
1826                                         sigc::bind(
1827                                                 sigc::bind(
1828                                                         sigc::bind(
1829                                                                 sigc::mem_fun(
1830                                                                         *canvas_view,
1831                                                                         &studio::CanvasView::popup_param_menu),
1832                                                                 false),
1833                                                         1.0f),
1834                                                 synfigapp::ValueDesc(value_node,first)));
1835                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1836
1837                                 add_bezier(bezier);
1838                                 bezier=0;
1839                         }
1840                         return true;
1841                 }
1842                 else // Check for DynamicList
1843                 if(value_desc.is_value_node() &&
1844                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node()))
1845                 {
1846                         ValueNode_DynamicList::Handle value_node;
1847                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1848                         int i;
1849
1850                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1851                         {
1852                                 Bezier bezier;
1853                                 etl::handle<Duck> first_duck, duck;
1854                                 int first = -1;
1855                                 for(i=0;i<value_node->link_count();i++)
1856                                 {
1857                                         if(!value_node->list[i].status_at_time(get_time()))
1858                                                 continue;
1859                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1860                                                 return false;
1861                                         duck = last_duck();
1862
1863                                         // remember the index of the first vertex we didn't skip
1864                                         if (first == -1)
1865                                         {
1866                                                 first = i;
1867                                                 first_duck = duck;
1868                                         }
1869
1870                                         if(param_desc && !param_desc->get_origin().empty())
1871                                         {
1872                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1873                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1874                                                 duck->set_origin(last_duck());
1875 /*
1876                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1877                                                 if(value.same_type_as(synfig::Point()))
1878                                                         duck->set_origin(value.get(synfig::Point()));
1879 */
1880 //                                              if(!param_desc->get_origin().empty())
1881 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1882                                         }
1883                                         duck->set_type(Duck::TYPE_VERTEX);
1884                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1885                                         bezier.p2=bezier.c2=duck;
1886
1887                                         if (first != i)
1888                                         {
1889                                                 handle<Bezier> bezier_(new Bezier());
1890                                                 bezier_->p1=bezier.p1;
1891                                                 bezier_->c1=bezier.c1;
1892                                                 bezier_->p2=bezier.p2;
1893                                                 bezier_->c2=bezier.c2;
1894                                                 add_bezier(bezier_);
1895                                                 last_bezier()->signal_user_click(2).connect(
1896                                                         sigc::bind(
1897                                                                 sigc::mem_fun(
1898                                                                         *canvas_view,
1899                                                                         &studio::CanvasView::popup_param_menu_bezier),
1900                                                                 synfigapp::ValueDesc(value_node,i)));
1901                                         }
1902                                 }
1903
1904                                 if (value_node->get_loop() && first != -1 && first_duck != duck)
1905                                 {
1906                                         duck = first_duck;
1907
1908                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1909                                         bezier.p2=bezier.c2=duck;
1910
1911                                         handle<Bezier> bezier_(new Bezier());
1912                                         bezier_->p1=bezier.p1;
1913                                         bezier_->c1=bezier.c1;
1914                                         bezier_->p2=bezier.p2;
1915                                         bezier_->c2=bezier.c2;
1916                                         add_bezier(bezier_);
1917                                         last_bezier()->signal_user_click(2).connect(
1918                                                 sigc::bind(
1919                                                         sigc::mem_fun(
1920                                                                 *canvas_view,
1921                                                                 &studio::CanvasView::popup_param_menu_bezier),
1922                                                         synfigapp::ValueDesc(value_node,first)));
1923                                 }
1924                         }
1925                         else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1926                         {
1927                                 for(i=0;i<value_node->link_count();i++)
1928                                 {
1929                                         if(!value_node->list[i].status_at_time(get_time()))
1930                                                 continue;
1931                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1932                                                 return false;
1933                                 }
1934                         }
1935                         else
1936                                 return false;
1937                 }
1938                 else
1939                 {
1940                         // WRITEME
1941                 }
1942
1943                 return true;
1944         }
1945
1946         break;
1947         default:
1948                 break;
1949         }
1950         return false;
1951 }