synfig-core/tags/synfig_0_61_05/synfig-core/src/synfig/layer_pastecanvas.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file layer_pastecanvas.h
   3 **      \brief Template Header
   4 **
   5 **      $Id: layer_pastecanvas.cpp,v 1.3 2005/01/24 03:08:18 darco Exp $
   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 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "layer_pastecanvas.h"
  33 #include "string.h"
  34 #include "time.h"
  35 #include "context.h"
  36 #include "paramdesc.h"
  37 #include "renddesc.h"
  38 #include "surface.h"
  39 #include "value.h"
  40 #include "valuenode.h"
  41 #include "canvas.h"
  42
  43 #endif
  44
  45 /* === U S I N G =========================================================== */
  46
  47 using namespace etl;
  48 using namespace std;
  49 using namespace synfig;
  50
  51 /* === M A C R O S ========================================================= */
  52
  53 #define MAX_DEPTH 10
  54
  55 //#ifdef __APPLE__
  56 //#define SYNFIG_NO_CLIP
  57 //#endif
  58
  59 /* === C L A S S E S ======================================================= */
  60
  61 class depth_counter     // Makes our recursive depth counter exception-safe
  62 {
  63         int *depth;
  64 public:
  65         depth_counter(int &x):depth(&x) { (*depth)++; }
  66         ~depth_counter() { (*depth)--; }
  67 };
  68
  69 /* === G L O B A L S ======================================================= */
  70
  71 SYNFIG_LAYER_INIT(Layer_PasteCanvas);
  72 SYNFIG_LAYER_SET_NAME(Layer_PasteCanvas,"PasteCanvas");
  73 SYNFIG_LAYER_SET_LOCAL_NAME(Layer_PasteCanvas,_("Paste Canvas"));
  74 SYNFIG_LAYER_SET_CATEGORY(Layer_PasteCanvas,_("Default"));
  75 SYNFIG_LAYER_SET_VERSION(Layer_PasteCanvas,"0.1");
  76 SYNFIG_LAYER_SET_CVS_ID(Layer_PasteCanvas,"$Id: layer_pastecanvas.cpp,v 1.3 2005/01/24 03:08:18 darco Exp $");
  77
  78 /* === M E T H O D S ======================================================= */
  79
  80 Layer_PasteCanvas::Layer_PasteCanvas():
  81         origin(0,0),
  82         zoom(0),
  83         time_offset(0)
  84 {
  85         children_lock=false;
  86         do_not_muck_with_time_=false;
  87         curr_time=Time::begin();
  88 }
  89
  90 Layer_PasteCanvas::~Layer_PasteCanvas()
  91 {
  92 /*      if(canvas)
  93                 canvas->parent_set.erase(this);
  94 */
  95
  96         //if(canvas)DEBUGINFO(strprintf("%d",canvas->count()));
  97
  98         set_sub_canvas(0);
  99
 100         //if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
 101         //      canvas->unref();
 102 }
 103
 104 String
 105 Layer_PasteCanvas::get_local_name()const
 106 {
 107         if(!canvas)     return _("Pasted Canvas");
 108         if(canvas->is_inline()) return _("Inline Canvas");
 109         if(canvas->get_root()==get_canvas()->get_root()) return '[' + canvas->get_id() + ']';
 110
 111         return '[' + canvas->get_file_name() + ']';
 112 }
 113
 114 Layer::Vocab
 115 Layer_PasteCanvas::get_param_vocab()const
 116 {
 117         Layer::Vocab ret(Layer_Composite::get_param_vocab());
 118
 119         ret.push_back(ParamDesc("origin")
 120                 .set_local_name(_("Origin"))
 121                 .set_description(_("Point where you want the origin to be"))
 122         );
 123         ret.push_back(ParamDesc("canvas")
 124                 .set_local_name(_("Canvas"))
 125                 .set_description(_("Canvas to paste"))
 126         );
 127         ret.push_back(ParamDesc("zoom")
 128                 .set_local_name(_("Zoom"))
 129                 .set_description(_("Size of canvas"))
 130         );
 131
 132         ret.push_back(ParamDesc("time_offset")
 133                 .set_local_name(_("Time Offset"))
 134         );
 135
 136         ret.push_back(ParamDesc("children_lock")
 137                 .set_local_name(_("Children Lock"))
 138         );
 139
 140         return ret;
 141 }
 142
 143 bool
 144 Layer_PasteCanvas::set_param(const String & param, const ValueBase &value)
 145 {
 146         IMPORT(origin);
 147
 148         if(param=="canvas" && value.same_as(Canvas::Handle()))
 149         {
 150                 set_sub_canvas(value.get(Canvas::Handle()));
 151                 return true;
 152         }
 153
 154 //      IMPORT(canvas);
 155         IMPORT(children_lock);
 156         IMPORT(zoom);
 157         IMPORT(time_offset);
 158
 159         return Layer_Composite::set_param(param,value);
 160 }
 161
 162 void
 163 Layer_PasteCanvas::set_sub_canvas(etl::handle<synfig::Canvas> x)
 164 {
 165         if(canvas && !do_not_muck_with_time_)
 166                 remove_child(canvas.get());
 167
 168         if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
 169                 canvas->unref();
 170
 171         child_changed_connection.disconnect();
 172
 173         canvas=x;
 174
 175         /*if(canvas)
 176                 child_changed_connection=canvas->signal_changed().connect(
 177                         sigc::mem_fun(
 178                                 *this,
 179                                 &Layer_PasteCanvas::changed
 180                         )
 181                 );
 182         */
 183         if(canvas)
 184                 bounds=(canvas->get_context().get_full_bounding_rect()-canvas->rend_desc().get_focus())*exp(zoom)+origin+canvas->rend_desc().get_focus();
 185
 186         if(canvas && !do_not_muck_with_time_)
 187                 add_child(canvas.get());
 188
 189         if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
 190                 canvas->ref();
 191
 192         if(canvas)
 193                 on_canvas_set();
 194 }
 195
 196 // This is called whenever the parent canvas gets set/changed
 197 void
 198 Layer_PasteCanvas::on_canvas_set()
 199 {
 200         //synfig::info("before count()=%d",count());
 201         if(get_canvas() && canvas && canvas->is_inline() && canvas->parent()!=get_canvas())
 202         {
 203                 //synfig::info("during count()=%d",count());
 204                 canvas->set_inline(get_canvas());
 205         }
 206         //synfig::info("after count()=%d",count());
 207 }
 208
 209 ValueBase
 210 Layer_PasteCanvas::get_param(const String& param)const
 211 {
 212         EXPORT(origin);
 213         EXPORT(canvas);
 214         EXPORT(zoom);
 215         EXPORT(time_offset);
 216         EXPORT(children_lock);
 217
 218         EXPORT_NAME();
 219         EXPORT_VERSION();
 220
 221         return Layer_Composite::get_param(param);
 222 }
 223
 224 void
 225 Layer_PasteCanvas::set_time(Context context, Time time)const
 226 {
 227         if(depth==MAX_DEPTH)return;depth_counter counter(depth);
 228         curr_time=time;
 229
 230         context.set_time(time);
 231         if(canvas)
 232         {
 233                 canvas->set_time(time);
 234
 235                 bounds=(canvas->get_context().get_full_bounding_rect()-canvas->rend_desc().get_focus())*exp(zoom)+origin+canvas->rend_desc().get_focus();
 236         }
 237         else
 238                 bounds=Rect::zero();
 239 }
 240
 241 synfig::Layer::Handle
 242 Layer_PasteCanvas::hit_check(synfig::Context context, const synfig::Point &pos)const
 243 {
 244         if(depth==MAX_DEPTH)return 0;depth_counter counter(depth);
 245
 246         Point target_pos=(pos-canvas->rend_desc().get_focus()-origin)/exp(zoom)+canvas->rend_desc().get_focus();
 247
 248         if(canvas && get_amount() && canvas->get_context().get_color(target_pos).get_a()>=0.25)
 249         {
 250                 if(!children_lock)
 251                 {
 252                         return canvas->get_context().hit_check(target_pos);
 253                 }
 254                 return const_cast<Layer_PasteCanvas*>(this);
 255         }
 256         else
 257                 return context.hit_check(pos);
 258 }
 259
 260 Color
 261 Layer_PasteCanvas::get_color(Context context, const Point &pos)const
 262 {
 263         if(!canvas || !get_amount())
 264                 return context.get_color(pos);
 265
 266         if(depth==MAX_DEPTH)return Color::alpha();depth_counter counter(depth);
 267
 268         Point target_pos=(pos-canvas->rend_desc().get_focus()-origin)/exp(zoom)+canvas->rend_desc().get_focus();
 269
 270         return Color::blend(canvas->get_context().get_color(target_pos),context.get_color(pos),get_amount(),get_blend_method());
 271 }
 272
 273
 274 bool
 275 Layer_PasteCanvas::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
 276 {
 277         if(cb && !cb->amount_complete(0,10000)) return false;
 278
 279         if(depth==MAX_DEPTH)
 280         {
 281                 DEBUGPOINT();
 282                 // if we are at the extent of our depth,
 283                 // then we should just return whatever is under us.
 284                 return context.accelerated_render(surface,quality,renddesc,cb);
 285         }
 286         depth_counter counter(depth);
 287
 288         if(!canvas || !get_amount())
 289                 return context.accelerated_render(surface,quality,renddesc,cb);
 290
 291         if(!do_not_muck_with_time_ &&   curr_time!=Time::begin() && canvas->get_time()!=curr_time+time_offset)
 292         {
 293                 canvas->set_time(curr_time+time_offset);
 294         }
 295
 296         SuperCallback stageone(cb,0,4500,10000);
 297         SuperCallback stagetwo(cb,4500,9000,10000);
 298         SuperCallback stagethree(cb,9000,9999,10000);
 299
 300         RendDesc desc(renddesc);
 301         Vector::value_type zoomfactor=1.0/exp(zoom);
 302         desc.clear_flags();
 303         desc.set_tl((desc.get_tl()-canvas->rend_desc().get_focus()-origin)*zoomfactor+canvas->rend_desc().get_focus());
 304         desc.set_br((desc.get_br()-canvas->rend_desc().get_focus()-origin)*zoomfactor+canvas->rend_desc().get_focus());
 305         desc.set_flags(RendDesc::PX_ASPECT);
 306
 307         if(is_solid_color() || context->empty())
 308         {
 309                 surface->set_wh(renddesc.get_w(),renddesc.get_h());
 310                 surface->clear();
 311         }
 312         else if(!context.accelerated_render(surface,quality,renddesc,&stageone))
 313                 return false;
 314         Color::BlendMethod blend_method(get_blend_method());
 315
 316         const Rect full_bounding_rect(canvas->get_context().get_full_bounding_rect());
 317
 318         if(context->empty())
 319         {
 320                 if(Color::is_onto(blend_method))
 321                         return true;
 322
 323                 if(blend_method==Color::BLEND_COMPOSITE)
 324                         blend_method=Color::BLEND_STRAIGHT;
 325         }
 326         else
 327         if(!etl::intersect(context.get_full_bounding_rect(),full_bounding_rect))
 328         {
 329                 if(Color::is_onto(blend_method))
 330                         return true;
 331
 332                 if(blend_method==Color::BLEND_COMPOSITE)
 333                         blend_method=Color::BLEND_STRAIGHT;
 334         }
 335
 336 #ifndef SYNFIG_NO_CLIP
 337         {
 338                 //synfig::info("PasteCanv Clip");
 339                 Rect area(desc.get_rect()&full_bounding_rect);
 340
 341                 Point min(area.get_min());
 342                 Point max(area.get_max());
 343
 344                 if(desc.get_tl()[0]>desc.get_br()[0])
 345                         swap(min[0],max[0]);
 346                 if(desc.get_tl()[1]>desc.get_br()[1])
 347                         swap(min[1],max[1]);
 348
 349                 const int
 350                         x(floor_to_int((min[0]-desc.get_tl()[0])/desc.get_pw())),
 351                         y(floor_to_int((min[1]-desc.get_tl()[1])/desc.get_ph())),
 352                         w(ceil_to_int((max[0]-desc.get_tl()[0])/desc.get_pw())-x),
 353                         h(ceil_to_int((max[1]-desc.get_tl()[1])/desc.get_ph())-y);
 354
 355                 desc.set_subwindow(x,y,w,h);
 356
 357                 Surface pastesurface;
 358
 359                 if(area.area()<=0.000001 || desc.get_w()==0 || desc.get_h()==0)
 360                 {
 361                         if(cb && !cb->amount_complete(10000,10000)) return false;
 362
 363                         return true;
 364                 }
 365
 366                 if(!canvas->get_context().accelerated_render(&pastesurface,quality,desc,&stagetwo))
 367                         return false;
 368
 369                 Surface::alpha_pen apen(surface->get_pen(x,y));
 370
 371                 apen.set_alpha(get_amount());
 372                 apen.set_blend_method(blend_method);
 373
 374                 pastesurface.blit_to(apen);
 375         }
 376 #else
 377         {
 378                 Surface pastesurface;
 379
 380                 if(!canvas->get_context().accelerated_render(&pastesurface,quality,desc,&stagetwo))
 381                         return false;
 382
 383                 Surface::alpha_pen apen(surface->begin());
 384
 385                 apen.set_alpha(get_amount());
 386                 apen.set_blend_method(blend_method);
 387
 388                 pastesurface.blit_to(apen);
 389         }
 390 #endif
 391
 392         if(cb && !cb->amount_complete(10000,10000)) return false;
 393
 394         return true;
 395 }
 396
 397 Rect
 398 Layer_PasteCanvas::get_bounding_rect()const
 399 {
 400         return bounds;
 401 }
 402
 403 void Layer_PasteCanvas::get_times_vfunc(Node::time_set &set) const
 404 {
 405         Node::time_set tset;
 406         if(canvas) tset = canvas->get_times();
 407
 408         Node::time_set::iterator        i = tset.begin(),
 409                                                                         end = tset.end();
 410
 411         //Make sure we offset the time...
 412         //TODO: SOMETHING STILL HAS TO BE DONE WITH THE OTHER DIRECTION
 413         //              (recursing down the tree needs to take this into account too...)
 414         for(; i != end; ++i)
 415         {
 416                 set.insert(*i + time_offset);
 417         }
 418
 419         Layer::get_times_vfunc(set);
 420 }