synfig-core/trunk/src/synfig/valuenode.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file valuenode.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **
  10 **      This package is free software; you can redistribute it and/or
  11 **      modify it under the terms of the GNU General Public License as
  12 **      published by the Free Software Foundation; either version 2 of
  13 **      the License, or (at your option) any later version.
  14 **
  15 **      This package is distributed in the hope that it will be useful,
  16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18 **      General Public License for more details.
  19 **      \endlegal
  20 */
  21 /* ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #define SYNFIG_NO_ANGLE
  26
  27 //#define HAS_HASH_MAP 1
  28
  29 #ifdef USING_PCH
  30 #       include "pch.h"
  31 #else
  32 #ifdef HAVE_CONFIG_H
  33 #       include <config.h>
  34 #endif
  35
  36 #include "valuenode.h"
  37 #include "general.h"
  38 #include "canvas.h"
  39
  40 #include "valuenode_const.h"
  41 #include "valuenode_linear.h"
  42 #include "valuenode_composite.h"
  43 #include "valuenode_reference.h"
  44 #include "valuenode_scale.h"
  45 #include "valuenode_segcalctangent.h"
  46 #include "valuenode_segcalcvertex.h"
  47 #include "valuenode_stripes.h"
  48 #include "valuenode_subtract.h"
  49 #include "valuenode_timedswap.h"
  50 #include "valuenode_twotone.h"
  51 #include "valuenode_bline.h"
  52 #include "valuenode_dynamiclist.h"
  53 #include "valuenode_radialcomposite.h"
  54 #include "valuenode_gradientrotate.h"
  55 #include "valuenode_sine.h"
  56
  57 #include "layer.h"
  58
  59 #endif
  60
  61 /* === U S I N G =========================================================== */
  62
  63 using namespace std;
  64 using namespace etl;
  65 using namespace synfig;
  66
  67 /* === M A C R O S ========================================================= */
  68
  69 /* === G L O B A L S ======================================================= */
  70
  71 static int value_node_count(0);
  72
  73 static LinkableValueNode::Book *book_;
  74
  75
  76 ValueNode::LooseHandle
  77 synfig::find_value_node(const GUID& guid)
  78 {
  79         return guid_cast<ValueNode>(guid);
  80 }
  81
  82 /* === P R O C E D U R E S ================================================= */
  83
  84 /* === M E T H O D S ======================================================= */
  85
  86 bool
  87 ValueNode::subsys_init()
  88 {
  89         book_=new LinkableValueNode::Book();
  90
  91 #define ADD_VALUENODE(c,n) (*book_)[n].factory=reinterpret_cast<LinkableValueNode::Factory>(&c::create); (*book_)[n].check_type=&c::check_type;(*book_)[n].local_name=n
  92 #define ADD_VALUENODE2(c,n) (*book_)[n].factory=reinterpret_cast<LinkableValueNode::Factory>(&c::create_from); (*book_)[n].check_type=&c::check_type;(*book_)[n].local_name=n
  93
  94         ADD_VALUENODE(ValueNode_Linear,"linear");
  95         ADD_VALUENODE(ValueNode_Composite,"composite");
  96         ADD_VALUENODE(ValueNode_RadialComposite,"radial_composite");
  97         ADD_VALUENODE(ValueNode_Reference,"reference");
  98         ADD_VALUENODE(ValueNode_Scale,"scale");
  99         ADD_VALUENODE(ValueNode_SegCalcTangent,"segcalctangent");
 100         ADD_VALUENODE(ValueNode_SegCalcVertex,"segcalcvertex");
 101         ADD_VALUENODE(ValueNode_Stripes,"stripes");
 102         ADD_VALUENODE(ValueNode_Subtract,"subtract");
 103         //ADD_VALUENODE(ValueNode_TimedSwap,"timed_swap");
 104         ADD_VALUENODE(ValueNode_TwoTone,"twotone");
 105         ADD_VALUENODE(ValueNode_BLine,"bline");
 106         ADD_VALUENODE2(ValueNode_DynamicList,"dynamic_list");
 107         ADD_VALUENODE(ValueNode_GradientRotate,"gradient_rotate");
 108         ADD_VALUENODE(ValueNode_Sine,"sine");
 109
 110 #undef ADD_VALUENODE
 111         return true;
 112 }
 113
 114 bool
 115 ValueNode::subsys_stop()
 116 {
 117         delete book_;
 118 /*      if(global_value_node_map.size() || value_node_count)
 119         {
 120                 if(value_node_count)
 121                         synfig::error("%d ValueNodes haven't been destroyed yet!",value_node_count);
 122
 123                 if(global_value_node_map.size()!=value_node_count)
 124                         synfig::error("value node count mismatch! map.size()!=value_node_count (%d!=%d)",global_value_node_map.size(),value_node_count);
 125
 126                 GlobalValueNodeMap::iterator iter;
 127                 for(iter=global_value_node_map.begin();iter!=global_value_node_map.end();++iter)
 128                 {
 129                         if(!iter->second->is_exported())
 130                                 synfig::info("%s: count:%d name:%s type:%s",
 131                                         iter->first.get_string().c_str(),
 132                                         iter->second->count(),
 133                                         iter->second->get_name().c_str(),
 134                                         ValueBase::type_name(iter->second->get_type()).c_str()
 135                                 );
 136                         else
 137                                 synfig::info("%s: id:%s count:%d name:%s type:%s",
 138                                         iter->first.get_string().c_str(),
 139                                         iter->second->get_id().c_str(),
 140                                         iter->second->count(),
 141                                         iter->second->get_name().c_str(),
 142                                         ValueBase::type_name(iter->second->get_type()).c_str()
 143                                 );
 144                 }
 145         }
 146 */
 147         return true;
 148 }
 149
 150 ValueNode::ValueNode(ValueBase::Type type):type(type)
 151 {
 152         value_node_count++;
 153 }
 154
 155 LinkableValueNode::Book&
 156 LinkableValueNode::book()
 157 {
 158         return *book_;
 159 }
 160
 161 LinkableValueNode::Handle
 162 LinkableValueNode::create(const String &name, const ValueBase& x)
 163 {
 164         if(!book().count(name))
 165                 return 0;
 166         return book()[name].factory(x);
 167 }
 168
 169 bool
 170 LinkableValueNode::check_type(const String &name, ValueBase::Type x)
 171 {
 172         if(!book().count(name) || !book()[name].check_type)
 173                 return false;
 174         return book()[name].check_type(x);
 175 }
 176
 177 bool
 178 LinkableValueNode::set_link(int i,ValueNode::Handle x)
 179 {
 180         ValueNode::Handle previous(get_link(i));
 181
 182         if(set_link_vfunc(i,x))
 183         {
 184                 if(previous)
 185                         remove_child(previous.get());
 186                 add_child(x.get());
 187
 188                 if(!x->is_exported() && get_parent_canvas())
 189                 {
 190                         x->set_parent_canvas(get_parent_canvas());
 191                 }
 192                 changed();
 193                 return true;
 194         }
 195         return false;
 196 }
 197
 198 ValueNode::LooseHandle
 199 LinkableValueNode::get_link(int i)const
 200 {
 201         return get_link_vfunc(i);
 202 }
 203
 204 void
 205 LinkableValueNode::unlink_all()
 206 {
 207         for(int i=0;i<link_count();i++)
 208         {
 209                 ValueNode::LooseHandle value_node(get_link(i));
 210                 if(value_node)
 211                         value_node->parent_set.erase(this);
 212         }
 213 }
 214
 215 ValueNode::~ValueNode()
 216 {
 217         value_node_count--;
 218
 219         begin_delete();
 220
 221         //DEBUGPOINT();
 222 }
 223
 224 void
 225 ValueNode::on_changed()
 226 {
 227         if(get_parent_canvas())
 228                 get_parent_canvas()->signal_value_node_changed()(this);
 229         else if(get_root_canvas() && get_parent_canvas())
 230                 get_root_canvas()->signal_value_node_changed()(this);
 231
 232         Node::on_changed();
 233 }
 234
 235 int
 236 ValueNode::replace(etl::handle<ValueNode> x)
 237 {
 238         if(x.get()==this)
 239                 return 0;
 240
 241         while(parent_set.size())
 242         {
 243                 (*parent_set.begin())->add_child(x.get());
 244                 (*parent_set.begin())->remove_child(this);
 245                 //x->parent_set.insert(*parent_set.begin());
 246                 //parent_set.erase(parent_set.begin());
 247         }
 248         int r(RHandle(this).replace(x));
 249         x->changed();
 250         return r;
 251 }
 252
 253 void
 254 ValueNode::set_id(const String &x)
 255 {
 256         if(name!=x)
 257         {
 258                 name=x;
 259                 signal_id_changed_();
 260         }
 261 }
 262
 263 ValueNodeList::ValueNodeList():
 264         placeholder_count_(0)
 265 {
 266 }
 267
 268 bool
 269 ValueNodeList::count(const String &id)const
 270 {
 271         const_iterator iter;
 272
 273         if(id.empty())
 274                 return false;
 275
 276         for(iter=begin();iter!=end() && id!=(*iter)->get_id();++iter);
 277
 278         if(iter==end())
 279                 return false;
 280
 281         return true;
 282 }
 283
 284 ValueNode::Handle
 285 ValueNodeList::find(const String &id)
 286 {
 287         iterator iter;
 288
 289         if(id.empty())
 290                 throw Exception::IDNotFound("Empty ID");
 291
 292         for(iter=begin();iter!=end() && id!=(*iter)->get_id();++iter);
 293
 294         if(iter==end())
 295                 throw Exception::IDNotFound("ValueNode in ValueNodeList: "+id);
 296
 297         return *iter;
 298 }
 299
 300 ValueNode::ConstHandle
 301 ValueNodeList::find(const String &id)const
 302 {
 303         const_iterator iter;
 304
 305         if(id.empty())
 306                 throw Exception::IDNotFound("Empty ID");
 307
 308         for(iter=begin();iter!=end() && id!=(*iter)->get_id();++iter);
 309
 310         if(iter==end())
 311                 throw Exception::IDNotFound("ValueNode in ValueNodeList: "+id);
 312
 313         return *iter;
 314 }
 315
 316 ValueNode::Handle
 317 ValueNodeList::surefind(const String &id)
 318 {
 319         if(id.empty())
 320                 throw Exception::IDNotFound("Empty ID");
 321
 322         ValueNode::Handle value_node;
 323
 324         try
 325         {
 326                 value_node=find(id);
 327         }
 328         catch(Exception::IDNotFound)
 329         {
 330                 value_node=PlaceholderValueNode::create();
 331                 value_node->set_id(id);
 332                 push_back(value_node);
 333                 placeholder_count_++;
 334         }
 335
 336         return value_node;
 337 }
 338
 339 bool
 340 ValueNodeList::erase(ValueNode::Handle value_node)
 341 {
 342         assert(value_node);
 343
 344         iterator iter;
 345
 346         for(iter=begin();iter!=end();++iter)
 347                 if(value_node.get()==iter->get())
 348                 {
 349                         std::list<ValueNode::RHandle>::erase(iter);
 350                         if(PlaceholderValueNode::Handle::cast_dynamic(value_node))
 351                                 placeholder_count_--;
 352                         return true;
 353                 }
 354         return false;
 355 }
 356
 357 bool
 358 ValueNodeList::add(ValueNode::Handle value_node)
 359 {
 360         if(!value_node)
 361                 return false;
 362         if(value_node->get_id().empty())
 363                 return false;
 364
 365         try
 366         {
 367                 ValueNode::RHandle other_value_node=find(value_node->get_id());
 368                 if(PlaceholderValueNode::Handle::cast_dynamic(other_value_node))
 369                 {
 370                         other_value_node->replace(value_node);
 371                         placeholder_count_--;
 372                         return true;
 373                 }
 374
 375                 return false;
 376         }
 377         catch(Exception::IDNotFound)
 378         {
 379                 push_back(value_node);
 380                 return true;
 381         }
 382
 383         return false;
 384 }
 385
 386 void
 387 ValueNodeList::audit()
 388 {
 389         iterator iter,next;
 390
 391         for(next=begin(),iter=next++;iter!=end();iter=next++)
 392                 if(iter->count()==1)
 393                         std::list<ValueNode::RHandle>::erase(iter);
 394 }
 395
 396
 397 String
 398 PlaceholderValueNode::get_name()const
 399 {
 400         return "placeholder";
 401 }
 402
 403 String
 404 PlaceholderValueNode::get_local_name()const
 405 {
 406         return _("Placeholder");
 407 }
 408
 409 ValueNode*
 410 PlaceholderValueNode::clone(const GUID& deriv_guid)const
 411 {
 412         ValueNode* ret(new PlaceholderValueNode());
 413         ret->set_guid(get_guid()^deriv_guid);
 414         return ret;
 415 }
 416
 417 PlaceholderValueNode::Handle
 418 PlaceholderValueNode::create(ValueBase::Type type)
 419 {
 420         return new PlaceholderValueNode(type);
 421 }
 422
 423 ValueBase
 424 PlaceholderValueNode::operator()(Time t)const
 425 {
 426         assert(0);
 427         return ValueBase();
 428 }
 429
 430 PlaceholderValueNode::PlaceholderValueNode(ValueBase::Type type):
 431         ValueNode(type)
 432 {
 433 }
 434
 435 ValueNode*
 436 LinkableValueNode::clone(const GUID& deriv_guid)const
 437 {
 438         { ValueNode* x(find_value_node(get_guid()^deriv_guid).get()); if(x)return x; }
 439
 440         int i;
 441         LinkableValueNode *ret=create_new();
 442         ret->set_guid(get_guid()^deriv_guid);
 443
 444         for(i=0;i<link_count();i++)
 445         {
 446                 ValueNode::Handle link=get_link_vfunc(i);
 447                 if(!link->is_exported())
 448                 {
 449                         ValueNode::LooseHandle value_node(find_value_node(link->get_guid()^deriv_guid));
 450                         if(!value_node)
 451                                 value_node=link->clone(deriv_guid);
 452                         ret->set_link(i,value_node);
 453                 }
 454                 else
 455                         ret->set_link(i,link);
 456         }
 457
 458         return ret;
 459 }
 460
 461 String
 462 ValueNode::get_relative_id(etl::loose_handle<const Canvas> x)const
 463 {
 464         assert(is_exported());
 465         assert(canvas_);
 466
 467         if(x.get()==canvas_.get())
 468                 return get_id();
 469
 470         return canvas_->_get_relative_id(x)+':'+get_id();
 471 }
 472
 473 void
 474 ValueNode::set_parent_canvas(etl::loose_handle<Canvas> x)
 475 {
 476         canvas_=x; if(x) root_canvas_=x->get_root();
 477 }
 478
 479 void
 480 ValueNode::set_root_canvas(etl::loose_handle<Canvas> x)
 481 {
 482         root_canvas_=x->get_root();
 483 }
 484
 485 void LinkableValueNode::get_times_vfunc(Node::time_set &set) const
 486 {
 487         ValueNode::LooseHandle  h;
 488
 489         int size = link_count();
 490
 491         //just add it to the set...
 492         for(int i=0; i < size; ++i)
 493         {
 494                 h = get_link(i);
 495
 496                 if(h)
 497                 {
 498                         const Node::time_set &tset = h->get_times();
 499                         set.insert(tset.begin(),tset.end());
 500                 }
 501         }
 502 }