synfig-studio/src/gtkmm/duckmatic.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file duckmatic.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2007, 2008 Chris Moore
  10 **      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 <synfig/general.h>
  42 #include <synfig/paramdesc.h>
  43 #include <synfig/valuenode_timedswap.h>
  44 #include <synfig/valuenode_animated.h>
  45 #include <synfig/valuenode_composite.h>
  46 #include <synfig/valuenode_scale.h>
  47 #include <synfig/valuenode_bline.h>
  48 #include <synfig/valuenode_blinecalctangent.h>
  49 #include <synfig/valuenode_blinecalcvertex.h>
  50 #include <synfig/valuenode_blinecalcwidth.h>
  51
  52 #include <synfig/curve_helper.h>
  53
  54 #include <sigc++/retype_return.h>
  55 #include <sigc++/retype.h>
  56 #include <sigc++/hide.h>
  57 #include <sigc++/bind.h>
  58
  59 #include "canvasview.h"
  60
  61 #include "onemoment.h"
  62
  63 #include "general.h"
  64
  65 #endif
  66
  67 /* === U S I N G =========================================================== */
  68
  69 using namespace std;
  70 using namespace etl;
  71 using namespace synfig;
  72 using namespace studio;
  73
  74 /* === M A C R O S ========================================================= */
  75
  76 /* 0.33333333333333333 makes for nice short tangent handles,
  77    1.0 makes them draw as their real length */
  78 #define TANGENT_HANDLE_SCALE 0.33333333333333333
  79
  80 /* leave this alone or the bezier won't lie on top of the bline */
  81 #define TANGENT_BEZIER_SCALE 0.33333333333333333
  82
  83 /* === G L O B A L S ======================================================= */
  84
  85 /* === P R O C E D U R E S ================================================= */
  86
  87 /* === M E T H O D S ======================================================= */
  88
  89 /* === E N T R Y P O I N T ================================================= */
  90
  91 Duckmatic::Duckmatic():
  92         type_mask(Duck::TYPE_ALL-Duck::TYPE_WIDTH),
  93         grid_snap(false),
  94         guide_snap(false),
  95         grid_size(1.0/4.0,1.0/4.0),
  96         show_persistent_strokes(true)
  97 {
  98         axis_lock=false;
  99         drag_offset_=Point(0,0);
 100         clear_duck_dragger();
 101 }
 102
 103 Duckmatic::~Duckmatic()
 104 {
 105         clear_ducks();
 106
 107         if (Duck::duck_count)
 108                 synfig::error("%d ducks not yet deleted!", Duck::duck_count);
 109
 110         if (getenv("SYNFIG_DEBUG_DESTRUCTORS"))
 111                 synfig::info("Duckmatic::~Duckmatic(): Deleted");
 112 }
 113
 114 void
 115 Duckmatic::clear_ducks()
 116 {
 117         duck_data_share_map.clear();
 118         duck_map.clear();
 119
 120         //duck_list_.clear();
 121         bezier_list_.clear();
 122         stroke_list_.clear();
 123
 124         if(show_persistent_strokes)
 125                 stroke_list_=persistent_stroke_list_;
 126 }
 127
 128 //! Returns \a true if the given duck is currently selected
 129 bool
 130 Duckmatic::duck_is_selected(const etl::handle<Duck> &duck)const
 131 {
 132         return duck && selected_ducks.count(duck->get_guid());
 133 }
 134
 135 void
 136 Duckmatic::set_grid_size(const synfig::Vector &s)
 137 {
 138         if(grid_size!=s)
 139         {
 140                 grid_size=s;
 141                 signal_grid_changed();
 142         }
 143 }
 144
 145 void
 146 Duckmatic::set_grid_snap(bool x)
 147 {
 148         if(grid_snap!=x)
 149         {
 150                 grid_snap=x;
 151                 signal_grid_changed();
 152         }
 153 }
 154
 155 void
 156 Duckmatic::set_guide_snap(bool x)
 157 {
 158         if(guide_snap!=x)
 159         {
 160                 guide_snap=x;
 161                 signal_grid_changed();
 162         }
 163 }
 164
 165 Duckmatic::GuideList::iterator
 166 Duckmatic::find_guide_x(synfig::Point pos, float radius)
 167 {
 168         GuideList::iterator iter,best(guide_list_x_.end());
 169         float dist(radius);
 170         for(iter=guide_list_x_.begin();iter!=guide_list_x_.end();++iter)
 171         {
 172                 float amount(abs(*iter-pos[0]));
 173                 if(amount<dist)
 174                 {
 175                         dist=amount;
 176                         best=iter;
 177                 }
 178         }
 179         return best;
 180 }
 181
 182 Duckmatic::GuideList::iterator
 183 Duckmatic::find_guide_y(synfig::Point pos, float radius)
 184 {
 185         GuideList::iterator iter,best(guide_list_y_.end());
 186         float dist(radius);
 187         for(iter=guide_list_y_.begin();iter!=guide_list_y_.end();++iter)
 188         {
 189                 float amount(abs(*iter-pos[1]));
 190                 if(amount<=dist)
 191                 {
 192                         dist=amount;
 193                         best=iter;
 194                 }
 195         }
 196         return best;
 197 }
 198
 199 void
 200 Duckmatic::clear_selected_ducks()
 201 {
 202         selected_ducks.clear();
 203         signal_duck_selection_changed_();
 204 }
 205
 206 etl::handle<Duckmatic::Duck>
 207 Duckmatic::get_selected_duck()const
 208 {
 209         if(selected_ducks.empty() || duck_map.empty())
 210                 return 0;
 211         return duck_map.find(*selected_ducks.begin())->second;
 212 }
 213
 214 void
 215 Duckmatic::refresh_selected_ducks()
 216 {
 217 /*
 218         std::set<etl::handle<Duck> >::iterator iter;
 219         std::set<etl::handle<Duck> > new_set;
 220         if(duck_list().empty())
 221         {
 222                 selected_duck_list.clear();
 223                 signal_duck_selection_changed_();
 224                 return;
 225         }
 226
 227         for(iter=selected_duck_list.begin();iter!=selected_duck_list.end();++iter)
 228         {
 229                 etl::handle<Duck> similar(find_similar_duck(*iter));
 230                 if(similar)
 231                 {
 232                         new_set.insert(similar);
 233                 }
 234         }
 235         selected_duck_list=new_set;
 236 */
 237         GUIDSet old_set(selected_ducks);
 238         GUIDSet::const_iterator iter;
 239
 240         for(iter=old_set.begin();iter!=old_set.end();++iter)
 241         {
 242                 if(duck_map.count(*iter)==0)
 243                         selected_ducks.erase(*iter);
 244         }
 245
 246         signal_duck_selection_changed_();
 247 }
 248
 249 bool
 250 Duckmatic::is_duck_group_selectable(const etl::handle<Duck>& x)const
 251 {
 252         const Type type(get_type_mask());
 253
 254         if (((x->get_type() && (!(type & x->get_type()))) ||
 255                  !x->get_editable()))
 256                 return false;
 257
 258         synfigapp::ValueDesc value_desc(x->get_value_desc());
 259         if(value_desc.parent_is_layer_param() && type & Duck::TYPE_POSITION)
 260         {
 261                 Layer::Handle layer(value_desc.get_layer());
 262                 String layer_name(layer->get_name());
 263
 264                 if (layer_name == "outline" || layer_name == "region" || layer_name == "plant" ||
 265                         layer_name == "polygon" || layer_name == "curve_gradient")
 266                         return false;
 267
 268                 if((layer_name=="PasteCanvas"|| layer_name=="paste_canvas") &&
 269                    !layer->get_param("children_lock").get(bool()))
 270                         return false;
 271         }
 272         else if (value_desc.parent_is_value_node())
 273         {
 274                 if (ValueNode_BLineCalcVertex::Handle::cast_dynamic(value_desc.get_value_node()))
 275                         return false;
 276                 if (value_desc.parent_is_linkable_value_node())
 277                 {
 278                         LinkableValueNode::Handle parent_value_node(value_desc.get_parent_value_node());
 279                         if (ValueNode_Composite::Handle::cast_dynamic(parent_value_node))
 280                         {
 281                                 if (parent_value_node->get_type() == ValueBase::TYPE_BLINEPOINT &&
 282                                         ValueNode_BLineCalcVertex::Handle::cast_dynamic(
 283                                                 parent_value_node->get_link("point")))
 284                                         return false;
 285                         }
 286                         else if (ValueNode_BLine::Handle::cast_dynamic(parent_value_node))
 287                         {
 288                                 ValueNode_Composite::Handle composite(ValueNode_Composite::Handle::cast_dynamic(
 289                                                                                                                   value_desc.get_value_node()));
 290                                 if (composite &&
 291                                         ValueNode_BLineCalcVertex::Handle::cast_dynamic(composite->get_link("point")))
 292                                         return false;
 293                         }
 294                 }
 295         }
 296         return true;
 297 }
 298
 299 void
 300 Duckmatic::select_all_ducks()
 301 {
 302         DuckMap::const_iterator iter;
 303         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 304                 if(is_duck_group_selectable(iter->second))
 305                         select_duck(iter->second);
 306                 else
 307                         unselect_duck(iter->second);
 308 }
 309
 310 void
 311 Duckmatic::unselect_all_ducks()
 312 {
 313         DuckMap::const_iterator iter;
 314         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 315                 unselect_duck(iter->second);
 316 }
 317
 318 void
 319 Duckmatic::toggle_select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 320 {
 321         Vector vmin, vmax;
 322         vmin[0]=std::min(tl[0],br[0]);
 323         vmin[1]=std::min(tl[1],br[1]);
 324         vmax[0]=std::max(tl[0],br[0]);
 325         vmax[1]=std::max(tl[1],br[1]);
 326
 327         DuckMap::const_iterator iter;
 328         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 329         {
 330                 Point p(iter->second->get_trans_point());
 331                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1] &&
 332                    is_duck_group_selectable(iter->second))
 333                         toggle_select_duck(iter->second);
 334         }
 335 }
 336
 337 void
 338 Duckmatic::select_ducks_in_box(const synfig::Vector& tl,const synfig::Vector& br)
 339 {
 340         Vector vmin, vmax;
 341         vmin[0]=std::min(tl[0],br[0]);
 342         vmin[1]=std::min(tl[1],br[1]);
 343         vmax[0]=std::max(tl[0],br[0]);
 344         vmax[1]=std::max(tl[1],br[1]);
 345
 346 //      Type type(get_type_mask());
 347
 348         DuckMap::const_iterator iter;
 349         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 350         {
 351                 Point p(iter->second->get_trans_point());
 352                 if(p[0]<=vmax[0] && p[0]>=vmin[0] && p[1]<=vmax[1] && p[1]>=vmin[1])
 353                 {
 354                         if(is_duck_group_selectable(iter->second))
 355                                 select_duck(iter->second);
 356                 }
 357         }
 358 }
 359
 360 int
 361 Duckmatic::count_selected_ducks()const
 362 {
 363         return selected_ducks.size();
 364 }
 365
 366 void
 367 Duckmatic::select_duck(const etl::handle<Duck> &duck)
 368 {
 369         if(duck)
 370         {
 371                 selected_ducks.insert(duck->get_guid());
 372                 signal_duck_selection_changed_();
 373         }
 374 }
 375
 376 DuckList
 377 Duckmatic::get_selected_ducks()const
 378 {
 379         DuckList ret;
 380         GUIDSet::const_iterator iter;
 381         const Type type(get_type_mask());
 382
 383         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 384         {
 385                 const DuckMap::const_iterator d_iter(duck_map.find(*iter));
 386
 387                 if(d_iter==duck_map.end())
 388                         continue;
 389
 390                 if(( d_iter->second->get_type() && (!(type & d_iter->second->get_type())) ) )
 391                         continue;
 392
 393                 ret.push_back(d_iter->second);
 394         }
 395         return ret;
 396 }
 397
 398 DuckList
 399 Duckmatic::get_duck_list()const
 400 {
 401         DuckList ret;
 402         DuckMap::const_iterator iter;
 403         for(iter=duck_map.begin();iter!=duck_map.end();++iter) if (iter->second->get_type()&Duck::TYPE_POSITION) ret.push_back(iter->second);
 404         for(iter=duck_map.begin();iter!=duck_map.end();++iter) if (iter->second->get_type()&Duck::TYPE_VERTEX  ) ret.push_back(iter->second);
 405         for(iter=duck_map.begin();iter!=duck_map.end();++iter) if (iter->second->get_type()&Duck::TYPE_TANGENT ) ret.push_back(iter->second);
 406         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 407                 if (!(iter->second->get_type()&Duck::TYPE_POSITION) &&
 408                         !(iter->second->get_type()&Duck::TYPE_VERTEX) &&
 409                         !(iter->second->get_type()&Duck::TYPE_TANGENT))
 410                         ret.push_back(iter->second);
 411         return ret;
 412 }
 413
 414 void
 415 Duckmatic::unselect_duck(const etl::handle<Duck> &duck)
 416 {
 417         if(duck && selected_ducks.count(duck->get_guid()))
 418         {
 419                 selected_ducks.erase(duck->get_guid());
 420                 signal_duck_selection_changed_();
 421         }
 422 }
 423
 424 void
 425 Duckmatic::toggle_select_duck(const etl::handle<Duck> &duck)
 426 {
 427         if(duck_is_selected(duck))
 428                 unselect_duck(duck);
 429         else
 430                 select_duck(duck);
 431 }
 432
 433 void
 434 Duckmatic::translate_selected_ducks(const synfig::Vector& vector)
 435 {
 436         if(duck_dragger_)
 437                 duck_dragger_->duck_drag(this,vector);
 438 }
 439
 440 void
 441 Duckmatic::start_duck_drag(const synfig::Vector& offset)
 442 {
 443         if(duck_dragger_)
 444                 duck_dragger_->begin_duck_drag(this,offset);
 445
 446         //drag_offset_=offset;
 447         drag_offset_=find_duck(offset)->get_trans_point();
 448 }
 449
 450 bool
 451 Duckmatic::end_duck_drag()
 452 {
 453         if(duck_dragger_)
 454                 return duck_dragger_->end_duck_drag(this);
 455         return false;
 456 }
 457
 458 Point
 459 Duckmatic::snap_point_to_grid(const synfig::Point& x, float radius)const
 460 {
 461         Point ret(x);
 462
 463         GuideList::const_iterator guide_x,guide_y;
 464         bool has_guide_x(false), has_guide_y(false);
 465
 466         guide_x=find_guide_x(ret,radius);
 467         if(guide_x!=guide_list_x_.end())
 468                 has_guide_x=true;
 469
 470         guide_y=find_guide_y(ret,radius);
 471         if(guide_y!=guide_list_y_.end())
 472                 has_guide_y=true;
 473
 474         if(get_grid_snap())
 475         {
 476                 Point snap(
 477                         floor(ret[0]/get_grid_size()[0]+0.5)*get_grid_size()[0],
 478                         floor(ret[1]/get_grid_size()[1]+0.5)*get_grid_size()[1]);
 479
 480                 if(abs(snap[0]-ret[0])<=radius && (!has_guide_x || abs(snap[0]-ret[0])<=abs(*guide_x-ret[0])))
 481                         ret[0]=snap[0],has_guide_x=false;
 482                 if(abs(snap[1]-ret[1])<=radius && (!has_guide_y || abs(snap[1]-ret[1])<=abs(*guide_y-ret[1])))
 483                         ret[1]=snap[1],has_guide_y=false;
 484         }
 485
 486         if(guide_snap)
 487         {
 488                 if(has_guide_x)
 489                         ret[0]=*guide_x;
 490                 if(has_guide_y)
 491                         ret[1]=*guide_y;
 492         }
 493
 494         if(axis_lock)
 495         {
 496                 ret-=drag_offset_;
 497                 if(abs(ret[0])<abs(ret[1]))
 498                         ret[0]=0;
 499                 else
 500                         ret[1]=0;
 501                 ret+=drag_offset_;
 502         }
 503
 504         return ret;
 505 }
 506
 507 void
 508 DuckDrag_Translate::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
 509 {
 510         last_translate_=Vector(0,0);
 511         {
 512                 drag_offset_=duckmatic->find_duck(offset)->get_trans_point();
 513
 514                 snap=Vector(0,0);
 515         }
 516
 517         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 518         DuckList::const_iterator iter;
 519
 520         positions.clear();
 521         for(iter=selected_ducks.begin();iter!=selected_ducks.end();++iter)
 522         {
 523                 Point p((*iter)->get_trans_point());
 524                 positions.push_back(p);
 525         }
 526 }
 527
 528 bool
 529 DuckDrag_Translate::end_duck_drag(Duckmatic* duckmatic)
 530 {
 531         if(last_translate_.mag()>0.0001)
 532         {
 533                 duckmatic->signal_edited_selected_ducks();
 534                 return true;
 535         }
 536         else
 537         {
 538                 duckmatic->signal_user_click_selected_ducks(0);
 539                 return false;
 540         }
 541 }
 542
 543 void
 544 DuckDrag_Translate::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
 545 {
 546         const DuckList selected_ducks(duckmatic->get_selected_ducks());
 547         DuckList::const_iterator iter;
 548
 549         synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-drag_offset_);
 550         int i;
 551         Time time(duckmatic->get_time());
 552
 553         // drag the vertex and position ducks first
 554         for (i=0,iter=selected_ducks.begin(); iter!=selected_ducks.end(); ++iter,i++)
 555                 if((*iter)->get_type() == Duck::TYPE_VERTEX || (*iter)->get_type() == Duck::TYPE_POSITION)
 556                         (*iter)->set_trans_point(positions[i]+vect, time);
 557
 558         // then drag the others
 559         for (i=0,iter=selected_ducks.begin(); iter!=selected_ducks.end(); ++iter,i++)
 560                 if ((*iter)->get_type() != Duck::TYPE_VERTEX && (*iter)->get_type() != Duck::TYPE_POSITION)
 561                         (*iter)->set_trans_point(positions[i]+vect, time);
 562
 563         // then patch up the tangents for the vertices we've moved
 564         DuckList duck_list(duckmatic->get_duck_list());
 565         for (iter=duck_list.begin(); iter!=duck_list.end(); ++iter)
 566         {
 567                 if ((*iter)->get_type() == Duck::TYPE_TANGENT || (*iter)->get_type() == Duck::TYPE_WIDTH)
 568                 {
 569                         (*iter)->update(time);
 570                 }
 571         }
 572
 573         last_translate_=vect;
 574 }
 575
 576 void
 577 Duckmatic::signal_edited_selected_ducks()
 578 {
 579         const DuckList ducks(get_selected_ducks());
 580         DuckList::const_iterator iter;
 581
 582         synfig::GUIDSet old_set(selected_ducks);
 583
 584         // If we have more than 20 things to move, then display
 585         // something to explain that it may take a moment
 586         smart_ptr<OneMoment> wait; if(ducks.size()>20)wait.spawn();
 587
 588         // Go ahead and call everyone's signals
 589         for(iter=ducks.begin();iter!=ducks.end();++iter)
 590         {
 591                 if ((*iter)->get_type() == Duck::TYPE_ANGLE)
 592                 {
 593                         if(!(*iter)->signal_edited_angle()((*iter)->get_rotations()))
 594                         {
 595                                 selected_ducks=old_set;
 596                                 throw String("Bad edit");
 597                         }
 598                 }
 599                 else if (App::restrict_radius_ducks &&
 600                                  (*iter)->is_radius())
 601                 {
 602                         Point point((*iter)->get_point());
 603                         bool changed = false;
 604
 605                         if (point[0] < 0)
 606                         {
 607                                 point[0] = 0;
 608                                 changed = true;
 609                         }
 610                         if (point[1] < 0)
 611                         {
 612                                 point[1] = 0;
 613                                 changed = true;
 614                         }
 615
 616                         if (changed) (*iter)->set_point(point);
 617
 618                         if(!(*iter)->signal_edited()(point))
 619                         {
 620                                 selected_ducks=old_set;
 621                                 throw String("Bad edit");
 622                         }
 623                 }
 624                 else
 625                 {
 626                         if(!(*iter)->signal_edited()((*iter)->get_point()))
 627                         {
 628                                 selected_ducks=old_set;
 629                                 throw String("Bad edit");
 630                         }
 631                 }
 632         }
 633         selected_ducks=old_set;
 634 }
 635
 636 void
 637 Duckmatic::signal_user_click_selected_ducks(int button)
 638 {
 639         const DuckList ducks(get_selected_ducks());
 640         DuckList::const_iterator iter;
 641
 642         for(iter=ducks.begin();iter!=ducks.end();++iter)
 643         {
 644                 (*iter)->signal_user_click(button)();
 645         }
 646 }
 647
 648 void
 649 Duckmatic::add_duck(const etl::handle<Duck> &duck)
 650 {
 651         //if(!duck_map.count(duck->get_guid()))
 652         {
 653                 if(duck_data_share_map.count(duck->get_data_guid()))
 654                 {
 655                         duck->set_shared_point(duck_data_share_map[duck->get_data_guid()]);
 656                 }
 657                 else
 658                 {
 659                         etl::smart_ptr<synfig::Point> point(new Point(duck->get_point()));
 660                         duck->set_shared_point(point);
 661                         duck_data_share_map[duck->get_data_guid()]=point;
 662                 }
 663
 664                 duck_map.insert(duck);
 665         }
 666
 667         last_duck_guid=duck->get_guid();
 668 }
 669
 670 void
 671 Duckmatic::add_bezier(const etl::handle<Bezier> &bezier)
 672 {
 673         bezier_list_.push_back(bezier);
 674 }
 675
 676 void
 677 Duckmatic::add_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 678 {
 679         assert(stroke_point_list);
 680
 681         std::list<etl::handle<Stroke> >::iterator iter;
 682
 683         for(iter=stroke_list_.begin();iter!=stroke_list_.end();++iter)
 684         {
 685                 if((*iter)->stroke_data==stroke_point_list)
 686                         return;
 687         }
 688
 689         etl::handle<Stroke> stroke(new Stroke());
 690
 691         stroke->stroke_data=stroke_point_list;
 692         stroke->color=color;
 693
 694         stroke_list_.push_back(stroke);
 695 }
 696
 697 void
 698 Duckmatic::add_persistent_stroke(etl::smart_ptr<std::list<synfig::Point> > stroke_point_list, const synfig::Color& color)
 699 {
 700         add_stroke(stroke_point_list,color);
 701         persistent_stroke_list_.push_back(stroke_list_.back());
 702 }
 703
 704 void
 705 Duckmatic::clear_persistent_strokes()
 706 {
 707         persistent_stroke_list_.clear();
 708 }
 709
 710 void
 711 Duckmatic::set_show_persistent_strokes(bool x)
 712 {
 713         if(x!=show_persistent_strokes)
 714         {
 715                 show_persistent_strokes=x;
 716                 if(x)
 717                         stroke_list_=persistent_stroke_list_;
 718                 else
 719                         stroke_list_.clear();
 720         }
 721 }
 722
 723 void
 724 Duckmatic::erase_duck(const etl::handle<Duck> &duck)
 725 {
 726         duck_map.erase(duck->get_guid());
 727 }
 728
 729 etl::handle<Duckmatic::Duck>
 730 Duckmatic::find_similar_duck(etl::handle<Duck> duck)
 731 {
 732         DuckMap::const_iterator iter(duck_map.find(duck->get_guid()));
 733         if(iter!=duck_map.end())
 734                 return iter->second;
 735         return 0;
 736
 737 /*      std::list<handle<Duck> >::reverse_iterator iter;
 738
 739         for(iter=duck_list_.rbegin();iter!=duck_list_.rend();++iter)
 740         {
 741                 if(*iter!=duck && **iter==*duck)
 742                 {
 743                         //synfig::info("Found similar duck! (iter:%08x vs. duck:%08x)",iter->get(), duck.get());
 744                         return *iter;
 745                 }
 746         }
 747         return 0;
 748 */
 749 }
 750
 751 etl::handle<Duckmatic::Duck>
 752 Duckmatic::add_similar_duck(etl::handle<Duck> duck)
 753 {
 754         etl::handle<Duck> similar(find_similar_duck(duck));
 755         if(!similar)
 756         {
 757                 add_duck(duck);
 758                 return duck;
 759         }
 760         return similar;
 761 }
 762
 763 void
 764 Duckmatic::erase_bezier(const etl::handle<Bezier> &bezier)
 765 {
 766         std::list<handle<Bezier> >::iterator iter;
 767
 768         for(iter=bezier_list_.begin();iter!=bezier_list_.end();++iter)
 769         {
 770                 if(*iter==bezier)
 771                 {
 772                         bezier_list_.erase(iter);
 773                         return;
 774                 }
 775         }
 776         synfig::warning("Unable to find bezier to erase!");
 777 }
 778
 779 etl::handle<Duckmatic::Duck>
 780 Duckmatic::last_duck()const
 781 {
 782         DuckMap::const_iterator iter(duck_map.find(last_duck_guid));
 783         if(iter!=duck_map.end())
 784                 return iter->second;
 785         return 0;
 786 }
 787
 788 etl::handle<Duckmatic::Bezier>
 789 Duckmatic::last_bezier()const
 790 {
 791         return bezier_list_.back();
 792 }
 793
 794 etl::handle<Duckmatic::Duck>
 795 Duckmatic::find_duck(synfig::Point point, synfig::Real radius, Duck::Type type)
 796 {
 797         if(radius==0)radius=10000000;
 798
 799         if(type==Duck::TYPE_DEFAULT)
 800                 type=get_type_mask();
 801
 802         Real closest(10000000);
 803         etl::handle<Duck> ret;
 804
 805         DuckMap::const_iterator iter;
 806
 807         for(iter=duck_map.begin();iter!=duck_map.end();++iter)
 808         {
 809                 const Duck::Handle& duck(iter->second);
 810
 811                 if(duck->get_ignore() ||
 812                    (duck->get_type() && !(type & duck->get_type())))
 813                         continue;
 814
 815                 Real dist((duck->get_trans_point()-point).mag_squared());
 816
 817                 if(duck->get_type()&Duck::TYPE_VERTEX)
 818                         dist*=1.0001;
 819                 else if(duck->get_type()&Duck::TYPE_TANGENT && duck->get_scalar()>0)
 820                         dist*=1.00005;
 821                 else if(duck->get_type()&Duck::TYPE_RADIUS)
 822                         dist*=0.9999;
 823
 824                 if(dist<=closest)
 825                 {
 826                         closest=dist;
 827                         ret=duck;
 828                 }
 829         }
 830
 831         if(radius==0 || closest<radius*radius)
 832                 return ret;
 833
 834         return 0;
 835 }
 836
 837 etl::handle<Duckmatic::Bezier>
 838 Duckmatic::find_bezier(synfig::Point point, synfig::Real radius,float* location)
 839 {
 840         return find_bezier(point,radius,radius,location);
 841 }
 842
 843 etl::handle<Duckmatic::Bezier>
 844 Duckmatic::find_bezier(synfig::Point pos, synfig::Real scale, synfig::Real radius, float* location)
 845 {
 846         if(radius==0)radius=10000000;
 847         Real closest(10000000);
 848         etl::handle<Bezier> ret;
 849
 850         bezier<Point>   curve;
 851
 852         Real    d,step;
 853         float   time = 0;
 854         float   best_time = 0;
 855
 856         for(std::list<handle<Bezier> >::const_iterator iter=bezier_list().begin();iter!=bezier_list().end();++iter)
 857         {
 858                 curve[0] = (*iter)->p1->get_trans_point();
 859                 curve[1] = (*iter)->c1->get_trans_point();
 860                 curve[2] = (*iter)->c2->get_trans_point();
 861                 curve[3] = (*iter)->p2->get_trans_point();
 862                 curve.sync();
 863
 864 #if 0
 865                 // I don't know why this doesn't work
 866                 time=curve.find_closest(pos,6);
 867                 d=((curve(time)-pos).mag_squared());
 868
 869 #else
 870                 //set the step size based on the size of the picture
 871                 d = (curve[1] - curve[0]).mag() + (curve[2]-curve[1]).mag()     + (curve[3]-curve[2]).mag();
 872
 873                 step = d/(2*scale); //want to make the distance between lines happy
 874
 875                 step = max(step,0.01); //100 samples should be plenty
 876                 step = min(step,0.1); //10 is minimum
 877
 878                 d = find_closest(curve,pos,step,&closest,&time);
 879 #endif
 880
 881                 if(d < closest)
 882                 {
 883                         closest = d;
 884                         ret = *iter;
 885                         best_time=time;
 886                 }
 887         }
 888
 889         if(closest < radius*radius)
 890         {
 891                 if(location)
 892                         *location = best_time;  // We need to square-root this because we were dealing with squared distances
 893
 894                 return ret;
 895         }
 896
 897         return 0;
 898 }
 899
 900 bool
 901 Duckmatic::save_sketch(const synfig::String& filename)const
 902 {
 903         ChangeLocale change_locale(LC_NUMERIC, "C");
 904         std::ofstream file(filename.c_str());
 905
 906         if(!file)return false;
 907
 908         file<<"SKETCH"<<endl;
 909
 910         std::list<etl::handle<Stroke> >::const_iterator iter;
 911
 912         for(iter=persistent_stroke_list_.begin();iter!=persistent_stroke_list_.end();++iter)
 913         {
 914                 file<<"C "
 915                         <<(*iter)->color.get_r()<<' '
 916                         <<(*iter)->color.get_g()<<' '
 917                         <<(*iter)->color.get_b()
 918                 <<endl;
 919                 std::list<synfig::Point>::const_iterator viter;
 920                 for(viter=(*iter)->stroke_data->begin();viter!=(*iter)->stroke_data->end();++viter)
 921                 {
 922                         file<<"V "
 923                                 <<(*viter)[0]<<' '
 924                                 <<(*viter)[1]
 925                         <<endl;
 926                 }
 927         }
 928         if(!file)return false;
 929         sketch_filename_=filename;
 930         signal_sketch_saved_();
 931         return true;
 932 }
 933
 934 bool
 935 Duckmatic::load_sketch(const synfig::String& filename)
 936 {
 937         ChangeLocale change_locale(LC_NUMERIC, "C");
 938         std::ifstream file(filename.c_str());
 939
 940         if(!file)
 941                 return false;
 942
 943         std::string line;
 944         getline(file,line);
 945
 946         if(line!="SKETCH")
 947         {
 948                 synfig::error("Not a sketch");
 949                 return false;
 950         }
 951
 952         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
 953
 954         while(file)
 955         {
 956                 getline(file,line);
 957
 958                 if(line.empty())
 959                         continue;
 960
 961                 switch(line[0])
 962                 {
 963                 case 'C':
 964                 case 'c':
 965                         {
 966                                 stroke_data.spawn();
 967                                 float r,g,b;
 968                                 if(!strscanf(line,"C %f %f %f",&r, &g, &b))
 969                                 {
 970                                         synfig::warning("Bad color line \"%s\"",line.c_str());
 971                                         r=0;g=0;b=0;
 972                                 }
 973                                 add_persistent_stroke(stroke_data, synfig::Color(r,g,b));
 974                         }
 975                         break;
 976                 case 'V':
 977                 case 'v':
 978                         if(!stroke_data)
 979                         {
 980                                 stroke_data.spawn();
 981                                 add_persistent_stroke(stroke_data, synfig::Color(0,0,0));
 982                         }
 983                         float x,y;
 984                         if(!strscanf(line,"V %f %f",&x, &y))
 985                                 synfig::warning("Bad vertex \"%s\"",line.c_str());
 986                         else
 987                                 stroke_data->push_back(synfig::Vector(x,y));
 988                         break;
 989                 default:
 990                         synfig::warning("Unexpected sketch token '%c'",line[0]);
 991                         break;
 992                 }
 993         }
 994
 995         sketch_filename_=filename;
 996         return true;
 997 }
 998
 999 Duckmatic::Push::Push(Duckmatic *duckmatic_):
1000         duckmatic_(duckmatic_)
1001 {
1002         duck_map=duckmatic_->duck_map;
1003         bezier_list_=duckmatic_->bezier_list_;
1004         duck_data_share_map=duckmatic_->duck_data_share_map;
1005         stroke_list_=duckmatic_->stroke_list_;
1006         duck_dragger_=duckmatic_->duck_dragger_;
1007         needs_restore=true;
1008 }
1009
1010 Duckmatic::Push::~Push()
1011 {
1012         if(needs_restore)
1013                 restore();
1014 }
1015
1016 void
1017 Duckmatic::Push::restore()
1018 {
1019         duckmatic_->duck_map=duck_map;
1020         duckmatic_->bezier_list_=bezier_list_;
1021         duckmatic_->duck_data_share_map=duck_data_share_map;
1022         duckmatic_->stroke_list_=stroke_list_;
1023         duckmatic_->duck_dragger_=duck_dragger_;
1024         needs_restore=false;
1025 }
1026
1027 inline String guid_string(const synfigapp::ValueDesc& x)
1028 {
1029         if(x.parent_is_layer_param())
1030                 return strprintf("%s",x.get_layer()->get_guid().get_string().c_str())+x.get_param_name();
1031         //if(x.is_value_node())
1032                 return strprintf("%s",x.get_value_node()->get_guid().get_string().c_str());
1033 }
1034
1035 inline synfig::GUID calc_duck_guid(const synfigapp::ValueDesc& x,const synfig::TransformStack& transform_stack)
1036 {
1037         synfig::GUID ret(0);
1038
1039         if(x.parent_is_layer_param())
1040         {
1041                 ret=x.get_layer()->get_guid()^synfig::GUID::hasher(x.get_param_name());
1042         }
1043         else
1044         {
1045                 ret=x.get_value_node()->get_guid();
1046         }
1047
1048         ret^=transform_stack.get_guid();
1049         return ret;
1050 }
1051
1052 /*
1053 Duck::Handle
1054 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)
1055 {
1056         synfig::GUID duck_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(modifier));
1057         etl::handle<Duck> duck=new Duck();
1058
1059         return duck;
1060 }
1061 */
1062
1063 bool
1064 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)
1065 {
1066         ValueBase::Type type=value_desc.get_value_type();
1067 #define REAL_COOKIE             reinterpret_cast<synfig::ParamDesc*>(28)
1068         switch(type)
1069         {
1070         case ValueBase::TYPE_REAL:
1071
1072                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1073                 {
1074                         etl::handle<Duck> duck=new Duck();
1075                         duck->set_transform_stack(transform_stack);
1076                         duck->set_radius(true);
1077                         duck->set_type(Duck::TYPE_RADIUS);
1078
1079                         // put the duck on the right hand side of the center
1080                         duck->set_point(Point(value_desc.get_value(get_time()).get(Real()), 0));
1081                         duck->set_name(guid_string(value_desc));
1082                         if(value_desc.is_value_node())
1083                         {
1084                                 // If the ValueNode can be directly manipulated,
1085                                 // then set it as so.
1086                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1087                         }
1088                         else
1089                         {
1090                                 duck->set_editable(true);
1091                         }
1092
1093                         if(param_desc && param_desc!=REAL_COOKIE)
1094                         {
1095                                 if(!param_desc->get_origin().empty())
1096                                 {
1097                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1098                                         /*
1099                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1100                                         */
1101                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1102                                         duck->set_origin(last_duck());
1103                                 }
1104                                 duck->set_scalar(param_desc->get_scalar());
1105                         }
1106
1107                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_REAL:
1108                         duck->signal_edited().connect(
1109                                 sigc::bind(
1110                                         sigc::mem_fun(
1111                                                 *canvas_view,
1112                                                 &studio::CanvasView::on_duck_changed),
1113                                         value_desc));
1114                         duck->set_value_desc(value_desc);
1115
1116                         duck->signal_user_click(2).connect(
1117                                 sigc::bind(
1118                                         sigc::bind(
1119                                                 sigc::bind(
1120                                                         sigc::mem_fun(
1121                                                                 *canvas_view,
1122                                                                 &studio::CanvasView::popup_param_menu),
1123                                                         false),
1124                                                 0.0f),
1125                                         value_desc));
1126
1127                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(multiple));
1128
1129                         add_duck(duck);
1130
1131                         return true;
1132                 }
1133                 break;
1134
1135         case ValueBase::TYPE_ANGLE:
1136
1137                 if(!param_desc || param_desc==REAL_COOKIE || !param_desc->get_origin().empty())
1138                 {
1139                         etl::handle<Duck> duck=new Duck();
1140                         duck->set_type(Duck::TYPE_ANGLE);
1141                         duck->set_transform_stack(transform_stack);
1142                         synfig::Angle angle;
1143
1144                         angle=value_desc.get_value(get_time()).get(Angle());
1145                         duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1146                         duck->set_name(guid_string(value_desc));
1147                         if(value_desc.is_value_node())
1148                         {
1149                                 ValueNode::Handle value_node=value_desc.get_value_node();
1150                                 //duck->set_name(strprintf("%x",value_node.get()));
1151
1152                                 // If the ValueNode can be directly manipulated,
1153                                 // then set it as so.
1154                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1155                         }
1156                         else
1157                         {
1158                                 //angle=(value_desc.get_value().get(Angle()));
1159                                 //duck->set_point(Point(Angle::cos(angle).get(),Angle::sin(angle).get()));
1160                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1161                                 duck->set_editable(true);
1162                         }
1163
1164                         if(param_desc && param_desc!=REAL_COOKIE)
1165                         {
1166                                 if(!param_desc->get_origin().empty())
1167                                 {
1168                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1169                                         /*
1170                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1171                                         */
1172                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1173                                         duck->set_origin(last_duck());
1174                                 }
1175                                 duck->set_scalar(param_desc->get_scalar());
1176                         }
1177
1178                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_ANGLE:
1179                         duck->signal_edited_angle().clear();
1180                         duck->signal_edited_angle().connect(
1181                                 sigc::bind(
1182                                         sigc::mem_fun(
1183                                                 *canvas_view,
1184                                                 &studio::CanvasView::on_duck_angle_changed),
1185                                         value_desc));
1186                         duck->set_value_desc(value_desc);
1187
1188                         duck->signal_user_click(2).connect(
1189                                 sigc::bind(
1190                                         sigc::bind(
1191                                                 sigc::bind(
1192                                                         sigc::mem_fun(
1193                                                                 *canvas_view,
1194                                                                 &studio::CanvasView::popup_param_menu),
1195                                                         false),
1196                                                 0.0f),
1197                                         value_desc));
1198                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(multiple));
1199
1200                         add_duck(duck);
1201
1202                         return true;
1203                 }
1204                 break;
1205
1206         case ValueBase::TYPE_VECTOR:
1207                 {
1208                         etl::handle<Duck> duck=new Duck();
1209                         duck->set_transform_stack(transform_stack);
1210
1211                         duck->set_point(value_desc.get_value(get_time()).get(Point()));
1212                         duck->set_name(guid_string(value_desc));
1213                         if(value_desc.is_value_node())
1214                         {
1215                                 //duck->set_name(strprintf("%x",value_desc.get_value_node().get()));
1216
1217                                 // If the ValueNode can be directly manipulated,
1218                                 // then set it as so.
1219                                 duck->set_editable(synfigapp::is_editable(value_desc.get_value_node()));
1220                         }
1221                         else
1222                         {
1223                                 //duck->set_point(value_desc.get_value().get(Point()));
1224                                 //duck->set_name(strprintf("%x",value_desc.get_layer().get())+value_desc.get_param_name());
1225                                 duck->set_editable(true);
1226                         }
1227
1228                         // If we were passed a parameter description
1229                         if(param_desc)
1230                         {
1231                                 if(!param_desc->get_connect().empty())
1232                                 {
1233                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_connect());
1234                                         Duck::Handle connect_duck;
1235                                         if(duck_map.find(calc_duck_guid(value_desc_origin,transform_stack)^synfig::GUID::hasher(0))!=duck_map.end())
1236                                         {
1237                                                 connect_duck=duck_map[calc_duck_guid(value_desc_origin,transform_stack)^synfig::GUID::hasher(0)];
1238                                         }
1239                                         else
1240                                         {
1241                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1242                                                 connect_duck=last_duck();
1243                                         }
1244                                         duck->set_connect_duck(connect_duck);
1245                                 }
1246                                 if(!param_desc->get_box().empty())
1247                                 {
1248                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_box());
1249                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1250                                         duck->set_box_duck(last_duck());
1251                                 }
1252
1253                                 // If we have an origin
1254                                 if(!param_desc->get_origin().empty())
1255                                 {
1256                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1257                                         /*
1258                                         duck->set_origin(value_desc_origin.get_value(get_time()).get(synfig::Point()));
1259                                         */
1260                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1261                                         duck->set_origin(last_duck());
1262                                         duck->set_type(Duck::TYPE_VERTEX);
1263                                 }
1264                                 else
1265                                         duck->set_type(Duck::TYPE_POSITION);
1266
1267                                 duck->set_scalar(param_desc->get_scalar());
1268                         }
1269                         else
1270                                 duck->set_type(Duck::TYPE_POSITION);
1271
1272                         duck->signal_edited().clear(); // value_desc.get_value_type() == ValueBase::TYPE_VECTOR:
1273                         duck->signal_edited().connect(
1274                                 sigc::bind(
1275                                         sigc::mem_fun(
1276                                                 *canvas_view,
1277                                                 &studio::CanvasView::on_duck_changed),
1278                                         value_desc));
1279                         duck->set_value_desc(value_desc);
1280
1281                         duck->signal_user_click(2).connect(
1282                                 sigc::bind(
1283                                         sigc::bind(
1284                                                 sigc::bind(
1285                                                         sigc::mem_fun(
1286                                                                 *canvas_view,
1287                                                                 &studio::CanvasView::popup_param_menu),
1288                                                         false),
1289                                                 1.0f),
1290                                         value_desc));
1291                         duck->set_guid(calc_duck_guid(value_desc,transform_stack)^synfig::GUID::hasher(multiple));
1292                         add_duck(duck);
1293
1294                         return true;
1295                 }
1296                 break;
1297         case ValueBase::TYPE_SEGMENT:
1298                 {
1299                         etl::handle<Bezier> bezier(new Bezier());
1300                         ValueNode_Composite::Handle value_node;
1301
1302                         if(value_desc.is_value_node() &&
1303                                 (value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node())))
1304                         {
1305                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1306                                         return false;
1307                                 bezier->p1=last_duck();
1308                                 bezier->p1->set_type(Duck::TYPE_VERTEX);
1309                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,1),canvas_view,transform_stack))
1310                                         return false;
1311                                 bezier->c1=last_duck();
1312                                 bezier->c1->set_type(Duck::TYPE_TANGENT);
1313                                 bezier->c1->set_origin(bezier->p1);
1314                                 bezier->c1->set_scalar(TANGENT_BEZIER_SCALE);
1315                                 bezier->c1->set_tangent(true);
1316
1317                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,2),canvas_view,transform_stack))
1318                                         return false;
1319                                 bezier->p2=last_duck();
1320                                 bezier->p2->set_type(Duck::TYPE_VERTEX);
1321                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,3),canvas_view,transform_stack))
1322                                         return false;
1323                                 bezier->c2=last_duck();
1324                                 bezier->c2->set_type(Duck::TYPE_TANGENT);
1325                                 bezier->c2->set_origin(bezier->p2);
1326                                 bezier->c2->set_scalar(-TANGENT_BEZIER_SCALE);
1327                                 bezier->c2->set_tangent(true);
1328
1329                                 bezier->signal_user_click(2).connect(
1330                                         sigc::bind(
1331                                                 sigc::mem_fun(
1332                                                         *canvas_view,
1333                                                         &studio::CanvasView::popup_param_menu_bezier),
1334                                                 value_desc));
1335
1336                                 add_bezier(bezier);
1337                         }
1338                         else if(value_desc.get_value().is_valid())
1339                         {
1340                                 Segment segment=value_desc.get_value();
1341                                 etl::handle<Duck> duck_p,duck_c;
1342                                 synfig::String name;
1343                                 if(param_desc)
1344                                 {
1345                                         name=param_desc->get_local_name();
1346                                 }
1347                                 else
1348                                 {
1349                                         name=guid_string(value_desc);
1350                                 }
1351
1352                                 duck_p=new Duck(segment.p1);
1353                                 duck_p->set_name(name+".P1");
1354                                 duck_p->set_type(Duck::TYPE_VERTEX);
1355                                 add_duck(duck_p);
1356
1357                                 duck_c=new Duck(segment.t1);
1358                                 duck_c->set_name(name+".T1");
1359                                 duck_c->set_type(Duck::TYPE_TANGENT);
1360                                 add_duck(duck_c);
1361                                 duck_c->set_origin(duck_p);
1362                                 duck_c->set_scalar(TANGENT_HANDLE_SCALE);
1363                                 duck_c->set_tangent(true);
1364
1365                                 bezier->p1=duck_p;
1366                                 bezier->c1=duck_c;
1367
1368                                 duck_p=new Duck(segment.p2);
1369                                 duck_p->set_name(name+".P2");
1370                                 duck_p->set_type(Duck::TYPE_VERTEX);
1371                                 add_duck(duck_p);
1372
1373                                 duck_c=new Duck(segment.t2);
1374                                 duck_c->set_type(Duck::TYPE_TANGENT);
1375                                 duck_c->set_name(name+".T2");
1376                                 add_duck(duck_c);
1377                                 duck_c->set_origin(duck_p);
1378                                 duck_c->set_scalar(-TANGENT_HANDLE_SCALE);
1379                                 duck_c->set_tangent(true);
1380
1381                                 bezier->p2=duck_p;
1382                                 bezier->c2=duck_c;
1383                                 add_bezier(bezier);
1384                         }
1385
1386                         return true;
1387                 }
1388                 break;
1389         case ValueBase::TYPE_BLINEPOINT:
1390         {
1391
1392                 if(value_desc.is_value_node() &&
1393                         ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
1394                 {
1395                         ValueNode_Composite::Handle value_node;
1396                         value_node=ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node());
1397
1398                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,0),canvas_view,transform_stack))
1399                                 return false;
1400                         etl::handle<Duck> vertex_duck(last_duck());
1401                         vertex_duck->set_type(Duck::TYPE_VERTEX);
1402                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1403                                 return false;
1404                         etl::handle<Duck> t1_duck(last_duck());
1405
1406                         t1_duck->set_origin(vertex_duck);
1407                         t1_duck->set_scalar(-TANGENT_HANDLE_SCALE);
1408                         t1_duck->set_tangent(true);
1409
1410                         etl::handle<Duck> t2_duck;
1411
1412                         // If the tangents are split
1413                         if((*value_node->get_link("split"))(get_time()).get(bool()))
1414                         {
1415                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
1416                                         return false;
1417                                 t2_duck=last_duck();
1418                                 t2_duck->set_origin(vertex_duck);
1419                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1420                                 t2_duck->set_tangent(true);
1421                         }
1422                         else
1423                         {
1424                                 if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
1425                                         return false;
1426                                 t2_duck=last_duck();
1427                                 t2_duck->set_origin(vertex_duck);
1428                                 t2_duck->set_scalar(TANGENT_HANDLE_SCALE);
1429                                 t2_duck->set_tangent(true);
1430                         }
1431                         return true;
1432                 }
1433
1434         }
1435         break;
1436         case ValueBase::TYPE_LIST:
1437         {
1438                 // Check for BLine
1439                 if (value_desc.is_value_node() &&
1440                         ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node()))
1441                 {
1442                         ValueNode_BLine::Handle value_node;
1443                         value_node=ValueNode_BLine::Handle::cast_dynamic(value_desc.get_value_node());
1444
1445                         int i,first=-1;
1446
1447                         etl::handle<Bezier> bezier;
1448                         etl::handle<Duck> first_duck;
1449                         etl::handle<Duck> duck, tduck;
1450
1451                         for (i = 0; i < value_node->link_count(); i++)
1452                         {
1453                                 float amount(value_node->list[i].amount_at_time(get_time()));
1454
1455                                 // skip vertices that aren't fully on
1456                                 if (amount < 0.9999f)
1457                                         continue;
1458
1459                                 // remember the index of the first vertex we didn't skip
1460                                 if (first == -1)
1461                                         first = i;
1462
1463                                 BLinePoint bline_point((*value_node->get_link(i))(get_time()));
1464
1465                                 // try casting the vertex to Composite - this tells us whether it is composite or not
1466                                 ValueNode_Composite::Handle composite_vertex_value_node(
1467                                         ValueNode_Composite::Handle::cast_dynamic(value_node->get_link(i)));
1468
1469                                 // add the vertex duck - it's a composite
1470                                 if(composite_vertex_value_node)
1471                                 {
1472                                         if (add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,0),canvas_view,transform_stack))
1473                                         {
1474                                                 duck=last_duck();
1475                                                 if(i==first)
1476                                                         first_duck=duck;
1477                                                 duck->set_type(Duck::TYPE_VERTEX);
1478
1479                                                 duck->signal_user_click(2).clear();
1480                                                 duck->signal_user_click(2).connect(
1481                                                         sigc::bind(
1482                                                                 sigc::bind(
1483                                                                         sigc::bind(
1484                                                                                 sigc::mem_fun(
1485                                                                                         *canvas_view,
1486                                                                                         &studio::CanvasView::popup_param_menu),
1487                                                                                 false),
1488                                                                         1.0f),
1489                                                                 synfigapp::ValueDesc(value_node,i)));
1490                                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1491
1492                                                 if(param_desc)
1493                                                 {
1494                                                         if(!param_desc->get_origin().empty())
1495                                                         {
1496                                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1497                                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1498                                                                 duck->set_origin(last_duck());
1499 /*
1500                                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1501                                                                 if(value.same_type_as(synfig::Point()))
1502                                                                         duck->set_origin(value.get(synfig::Point()));
1503 */
1504                                                         }
1505                                                 }
1506                                         }
1507                                         else
1508                                                 return false;
1509                                 }
1510                                 // else it's not a composite
1511                                 else
1512                                 {
1513                                         duck=new Duck(bline_point.get_vertex());
1514                                         if(i==first)
1515                                                 first_duck=duck;
1516                                         duck->set_transform_stack(transform_stack);
1517                                         duck->set_editable(false);
1518                                         //duck->set_name(strprintf("%x-vertex",value_node->get_link(i).get()));
1519                                         duck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".v");
1520
1521                                         duck->set_type(Duck::TYPE_VERTEX);
1522                                         if(param_desc)
1523                                         {
1524                                                 if(!param_desc->get_origin().empty())
1525                                                 {
1526                                                         synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1527                                                         add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1528                                                         duck->set_origin(last_duck());
1529 /*
1530                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1531                                                         if(value.same_type_as(synfig::Point()))
1532                                                                 duck->set_origin(value.get(synfig::Point()));
1533 */
1534                                                 }
1535                                         }
1536                                         duck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^synfig::GUID::hasher(".v"));
1537                                         duck=add_similar_duck(duck);
1538 //                                      add_duck(duck);
1539                                 }
1540
1541                                 // Add the width duck if it is a parameter with a hint (ie. "width") or if it isn't a parameter
1542                                 if ((param_desc && !param_desc->get_hint().empty()) ||
1543                                         !param_desc)
1544                                 {
1545                                         etl::handle<Duck> width;
1546                                         if (add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,1),canvas_view,transform_stack,REAL_COOKIE))
1547                                         {
1548                                                 width=last_duck();
1549                                                 width->set_origin(duck);
1550                                                 width->set_type(Duck::TYPE_WIDTH);
1551                                                 width->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".w");
1552
1553                                                 // if the bline is a layer's parameter, scale the width duck by the layer's "width" parameter
1554                                                 if (param_desc)
1555                                                 {
1556                                                         ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_hint()).get_value(get_time()));
1557                                                         if(value.same_type_as(synfig::Real()))
1558                                                                 width->set_scalar(value.get(synfig::Real())*0.5f);
1559                                                         // if it doesn't have a "width" parameter, scale by 0.5f instead
1560                                                         else
1561                                                                 width->set_scalar(0.5f);
1562                                                 }
1563                                                 // otherwise just present the raw unscaled width
1564                                                 else
1565                                                         width->set_scalar(0.5f);
1566                                         }
1567                                         else
1568                                                 synfig::error("Unable to add width duck!");
1569                                 }
1570
1571                                 // each bezier uses t2 of one point and t1 of the next
1572                                 // the first time through this loop we won't have the t2 duck from the previous vertex
1573                                 // and so we don't make a bezier.  instead we skip on to t2 for this point
1574                                 if(bezier)
1575                                 {
1576                                         // Add the tangent1 duck
1577                                         if(composite_vertex_value_node)
1578                                         {
1579                                                 if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
1580                                                         return false;
1581                                                 tduck=last_duck();
1582                                         }
1583                                         else
1584                                         {
1585                                                 tduck=new Duck(bline_point.get_tangent1());
1586                                                 tduck->set_transform_stack(transform_stack);
1587                                                 tduck->set_editable(false);
1588                                                 tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t1");
1589 //                                              tduck->set_name(strprintf("%x-tangent1",value_node->get_link(i).get()));
1590                                                 tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^synfig::GUID::hasher(".t1"));
1591                                                 tduck=add_similar_duck(tduck);
1592 //                                              add_duck(duck);
1593                                         }
1594
1595                                         tduck->set_origin(duck);
1596                                         tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1597                                         tduck->set_tangent(true);
1598
1599                                         bezier->p2=duck;
1600                                         bezier->c2=tduck;
1601
1602                                         bezier->signal_user_click(2).connect(
1603                                                 sigc::bind(
1604                                                         sigc::mem_fun(
1605                                                                 *canvas_view,
1606                                                                 &studio::CanvasView::popup_param_menu_bezier),
1607                                                         synfigapp::ValueDesc(value_node,i)));
1608
1609                                         duck->signal_user_click(2).clear();
1610                                         duck->signal_user_click(2).connect(
1611                                                 sigc::bind(
1612                                                         sigc::bind(
1613                                                                 sigc::bind(
1614                                                                         sigc::mem_fun(
1615                                                                                 *canvas_view,
1616                                                                                 &studio::CanvasView::popup_param_menu),
1617                                                                         false),
1618                                                                 1.0f),
1619                                                         synfigapp::ValueDesc(value_node,i)));
1620                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1621
1622                                         add_bezier(bezier);
1623                                         bezier=0;
1624                                 }
1625
1626                                 // don't start a new bezier for the last point in the line if we're not looped
1627                                 if(i+1>=value_node->link_count() && !value_node->get_loop())
1628                                         continue;
1629
1630                                 bezier=new Bezier();
1631
1632                                 // Add the tangent2 duck
1633                                 if(composite_vertex_value_node)
1634                                 {
1635                                         int i=bline_point.get_split_tangent_flag()?5:4;
1636                                         if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,i),canvas_view,transform_stack,0,2))
1637                                                 return false;
1638                                         tduck=last_duck();
1639                                 }
1640                                 else
1641                                 {
1642                                         if(bline_point.get_split_tangent_flag())
1643                                                 tduck=new Duck(bline_point.get_tangent2());
1644                                         else
1645                                                 tduck=new Duck(bline_point.get_tangent1());
1646
1647                                         tduck->set_transform_stack(transform_stack);
1648                                         tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,i))+".t2");
1649                                         tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,i),transform_stack)^synfig::GUID::hasher(".t2"));
1650                                         tduck->set_editable(false);
1651                                         tduck=add_similar_duck(tduck);
1652 //                                      add_duck(duck);
1653                                         if(param_desc)
1654                                         {
1655                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1656                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1657                                                 duck->set_origin(last_duck());
1658 /*
1659                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1660                                                 if(value.same_type_as(synfig::Point()))
1661                                                         duck->set_origin(value.get(synfig::Point()));
1662 */
1663 //                                              if(!param_desc->get_origin().empty())
1664 //                                                      duck->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1665                                         }
1666                                         duck->signal_user_click(2).clear();
1667                                         duck->signal_user_click(2).connect(
1668                                                 sigc::bind(
1669                                                         sigc::bind(
1670                                                                 sigc::bind(
1671                                                                         sigc::mem_fun(
1672                                                                                 *canvas_view,
1673                                                                                 &studio::CanvasView::popup_param_menu),
1674                                                                         false),
1675                                                                 1.0f),
1676                                                         synfigapp::ValueDesc(value_node,i)));
1677                                         duck->set_value_desc(synfigapp::ValueDesc(value_node,i));
1678
1679                                 }
1680
1681                                 tduck->set_origin(duck);
1682                                 tduck->set_scalar(TANGENT_BEZIER_SCALE);
1683                                 tduck->set_tangent(true);
1684
1685                                 bezier->p1=duck;
1686                                 bezier->c1=tduck;
1687                         }
1688
1689                         // Loop if necessary
1690                         if(bezier && value_node->get_loop())
1691                         {
1692                                 BLinePoint bline_point((*value_node->get_link(first))(get_time()));
1693
1694                                 ValueNode_Composite::Handle composite_vertex_value_node(
1695                                         ValueNode_Composite::Handle::cast_dynamic(
1696                                                 value_node->get_link(first)));
1697
1698                                 // Add the vertex duck
1699                                 duck=first_duck;
1700
1701                                 // Add the tangent1 duck
1702                                 if(composite_vertex_value_node)
1703                                 {
1704                                         if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
1705                                                 return false;
1706                                         tduck=last_duck();
1707                                 }
1708                                 else
1709                                 {
1710                                         tduck=new Duck(bline_point.get_tangent1());
1711                                         tduck->set_transform_stack(transform_stack);
1712                                         tduck->set_editable(false);
1713                                         tduck->set_name(guid_string(synfigapp::ValueDesc(value_node,first))+".t1");
1714                                         //tduck->set_name(strprintf("%x-tangent1",value_node->get_link(first).get()));
1715                                         tduck=add_similar_duck(tduck);
1716                                         tduck->set_guid(calc_duck_guid(synfigapp::ValueDesc(value_node,first),transform_stack)^synfig::GUID::hasher(".t1"));
1717                                         //add_duck(duck);
1718                                 }
1719
1720                                 tduck->set_origin(duck);
1721                                 tduck->set_scalar(-TANGENT_BEZIER_SCALE);
1722                                 tduck->set_tangent(true);
1723
1724                                 bezier->p2=duck;
1725                                 bezier->c2=tduck;
1726
1727                                 bezier->signal_user_click(2).connect(
1728                                         sigc::bind(
1729                                                 sigc::mem_fun(
1730                                                         *canvas_view,
1731                                                         &studio::CanvasView::popup_param_menu_bezier),
1732                                                 synfigapp::ValueDesc(value_node,first)));
1733
1734                                 duck->signal_user_click(2).clear();
1735                                 duck->signal_user_click(2).connect(
1736                                         sigc::bind(
1737                                                 sigc::bind(
1738                                                         sigc::bind(
1739                                                                 sigc::mem_fun(
1740                                                                         *canvas_view,
1741                                                                         &studio::CanvasView::popup_param_menu),
1742                                                                 false),
1743                                                         1.0f),
1744                                                 synfigapp::ValueDesc(value_node,first)));
1745                                 duck->set_value_desc(synfigapp::ValueDesc(value_node,first));
1746
1747                                 add_bezier(bezier);
1748                                 bezier=0;
1749                         }
1750                         return true;
1751                 }
1752                 else // Check for DynamicList
1753                 if(value_desc.is_value_node() &&
1754                         ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node()))
1755                 {
1756                         ValueNode_DynamicList::Handle value_node;
1757                         value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_value_node());
1758                         int i;
1759
1760                         if(value_node->get_contained_type()==ValueBase::TYPE_VECTOR)
1761                         {
1762                                 Bezier bezier;
1763                                 etl::handle<Duck> first_duck, duck;
1764                                 int first = -1;
1765                                 for(i=0;i<value_node->link_count();i++)
1766                                 {
1767                                         if(!value_node->list[i].status_at_time(get_time()))
1768                                                 continue;
1769                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1770                                                 return false;
1771                                         duck = last_duck();
1772
1773                                         // remember the index of the first vertex we didn't skip
1774                                         if (first == -1)
1775                                         {
1776                                                 first = i;
1777                                                 first_duck = duck;
1778                                         }
1779
1780                                         if(param_desc && !param_desc->get_origin().empty())
1781                                         {
1782                                                 synfigapp::ValueDesc value_desc_origin(value_desc.get_layer(),param_desc->get_origin());
1783                                                 add_to_ducks(value_desc_origin,canvas_view, transform_stack);
1784                                                 duck->set_origin(last_duck());
1785 /*
1786                                                 ValueBase value(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()));
1787                                                 if(value.same_type_as(synfig::Point()))
1788                                                         duck->set_origin(value.get(synfig::Point()));
1789 */
1790 //                                              if(!param_desc->get_origin().empty())
1791 //                                                      last_duck()->set_origin(synfigapp::ValueDesc(value_desc.get_layer(),param_desc->get_origin()).get_value(get_time()).get(synfig::Point()));
1792                                         }
1793                                         duck->set_type(Duck::TYPE_VERTEX);
1794                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1795                                         bezier.p2=bezier.c2=duck;
1796
1797                                         if (first != i)
1798                                         {
1799                                                 handle<Bezier> bezier_(new Bezier());
1800                                                 bezier_->p1=bezier.p1;
1801                                                 bezier_->c1=bezier.c1;
1802                                                 bezier_->p2=bezier.p2;
1803                                                 bezier_->c2=bezier.c2;
1804                                                 add_bezier(bezier_);
1805                                                 last_bezier()->signal_user_click(2).connect(
1806                                                         sigc::bind(
1807                                                                 sigc::mem_fun(
1808                                                                         *canvas_view,
1809                                                                         &studio::CanvasView::popup_param_menu_bezier),
1810                                                                 synfigapp::ValueDesc(value_node,i)));
1811                                         }
1812                                 }
1813
1814                                 if (value_node->get_loop() && first != -1 && first_duck != duck)
1815                                 {
1816                                         duck = first_duck;
1817
1818                                         bezier.p1=bezier.p2;bezier.c1=bezier.c2;
1819                                         bezier.p2=bezier.c2=duck;
1820
1821                                         handle<Bezier> bezier_(new Bezier());
1822                                         bezier_->p1=bezier.p1;
1823                                         bezier_->c1=bezier.c1;
1824                                         bezier_->p2=bezier.p2;
1825                                         bezier_->c2=bezier.c2;
1826                                         add_bezier(bezier_);
1827                                         last_bezier()->signal_user_click(2).connect(
1828                                                 sigc::bind(
1829                                                         sigc::mem_fun(
1830                                                                 *canvas_view,
1831                                                                 &studio::CanvasView::popup_param_menu_bezier),
1832                                                         synfigapp::ValueDesc(value_node,first)));
1833                                 }
1834                         }
1835                         else if(value_node->get_contained_type()==ValueBase::TYPE_SEGMENT)
1836                         {
1837                                 for(i=0;i<value_node->link_count();i++)
1838                                 {
1839                                         if(!value_node->list[i].status_at_time(get_time()))
1840                                                 continue;
1841                                         if(!add_to_ducks(synfigapp::ValueDesc(value_node,i),canvas_view,transform_stack))
1842                                                 return false;
1843                                 }
1844                         }
1845                         else
1846                                 return false;
1847                 }
1848                 else
1849                 {
1850                         // WRITEME
1851                 }
1852
1853                 return true;
1854         }
1855
1856         break;
1857         default:
1858                 break;
1859         }
1860         return false;
1861 }