1 /* === S Y N F I G ========================================================= */
2 /*! \file layer_pastecanvas.cpp
3 ** \brief Implementation of the "Paste Canvas" layer
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007 Chris Moore
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
22 /* ========================================================================= */
24 /* === H E A D E R S ======================================================= */
33 #include "layer_pastecanvas.h"
37 #include "paramdesc.h"
41 #include "valuenode.h"
46 /* === U S I N G =========================================================== */
50 using namespace synfig;
52 /* === M A C R O S ========================================================= */
56 #define SYNFIG_CLIP_PASTECANVAS
59 //#undef SYNFIG_CLIP_PASTECANVAS
62 /* === C L A S S E S ======================================================= */
64 class depth_counter // Makes our recursive depth counter exception-safe
68 depth_counter(int &x):depth(&x) { (*depth)++; }
69 ~depth_counter() { (*depth)--; }
72 /* === G L O B A L S ======================================================= */
74 SYNFIG_LAYER_INIT(Layer_PasteCanvas);
75 SYNFIG_LAYER_SET_NAME(Layer_PasteCanvas,"PasteCanvas"); // todo: use paste_canvas
76 SYNFIG_LAYER_SET_LOCAL_NAME(Layer_PasteCanvas,N_("Paste Canvas"));
77 SYNFIG_LAYER_SET_CATEGORY(Layer_PasteCanvas,N_("Other"));
78 SYNFIG_LAYER_SET_VERSION(Layer_PasteCanvas,"0.1");
79 SYNFIG_LAYER_SET_CVS_ID(Layer_PasteCanvas,"$Id$");
81 /* === M E T H O D S ======================================================= */
83 Layer_PasteCanvas::Layer_PasteCanvas():
91 curr_time=Time::begin();
94 Layer_PasteCanvas::~Layer_PasteCanvas()
97 canvas->parent_set.erase(this);
100 //if(canvas)DEBUGINFO(strprintf("%d",canvas->count()));
104 //if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
109 Layer_PasteCanvas::get_local_name()const
111 if(!canvas) return _("Pasted Canvas");
112 if(canvas->is_inline()) return _("Inline Canvas");
113 if(canvas->get_root()==get_canvas()->get_root()) return '[' + canvas->get_id() + ']';
115 return '[' + canvas->get_file_name() + ']';
119 Layer_PasteCanvas::get_param_vocab()const
121 Layer::Vocab ret(Layer_Composite::get_param_vocab());
123 ret.push_back(ParamDesc("origin")
124 .set_local_name(_("Origin"))
125 .set_description(_("Point where you want the origin to be"))
127 ret.push_back(ParamDesc("canvas")
128 .set_local_name(_("Canvas"))
129 .set_description(_("Canvas to paste"))
131 ret.push_back(ParamDesc("zoom")
132 .set_local_name(_("Zoom"))
133 .set_description(_("Size of canvas"))
136 ret.push_back(ParamDesc("time_offset")
137 .set_local_name(_("Time Offset"))
140 ret.push_back(ParamDesc("children_lock")
141 .set_local_name(_("Children Lock"))
148 Layer_PasteCanvas::set_param(const String & param, const ValueBase &value)
153 if(param=="canvas" && value.same_type_as(Canvas::Handle()))
155 set_sub_canvas(value.get(Canvas::Handle()));
159 //! \todo this introduces bug 1844764 if enabled; it was introduced in r954, but I can't see if it's useful
161 if (param=="time_offset" && value.same_type_as(time_offset))
163 if (time_offset != value.get(Time()))
165 value.put(&time_offset);
166 // notify that the time_offset has changed so we can update the
167 // waypoint positions in parent layers
176 IMPORT(children_lock);
179 return Layer_Composite::set_param(param,value);
183 Layer_PasteCanvas::set_sub_canvas(etl::handle<synfig::Canvas> x)
185 if(canvas && muck_with_time_)
186 remove_child(canvas.get());
188 if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
191 child_changed_connection.disconnect();
196 child_changed_connection=canvas->signal_changed().connect(
199 &Layer_PasteCanvas::changed
204 bounds=(canvas->get_context().get_full_bounding_rect()-canvas->rend_desc().get_focus())*exp(zoom)+origin+canvas->rend_desc().get_focus();
206 if(canvas && muck_with_time_)
207 add_child(canvas.get());
209 if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
216 // This is called whenever the parent canvas gets set/changed
218 Layer_PasteCanvas::on_canvas_set()
220 //synfig::info("before count()=%d",count());
221 if(get_canvas() && canvas && canvas->is_inline() && canvas->parent()!=get_canvas())
223 //synfig::info("during count()=%d",count());
224 canvas->set_inline(get_canvas());
226 //synfig::info("after count()=%d",count());
230 Layer_PasteCanvas::get_param(const String& param)const
236 EXPORT(children_lock);
241 return Layer_Composite::get_param(param);
245 Layer_PasteCanvas::set_time(Context context, Time time)const
247 if(depth==MAX_DEPTH)return;depth_counter counter(depth);
250 context.set_time(time);
253 canvas->set_time(time+time_offset);
255 bounds=(canvas->get_context().get_full_bounding_rect()-canvas->rend_desc().get_focus())*exp(zoom)+origin+canvas->rend_desc().get_focus();
261 synfig::Layer::Handle
262 Layer_PasteCanvas::hit_check(synfig::Context context, const synfig::Point &pos)const
264 if(depth==MAX_DEPTH)return 0;depth_counter counter(depth);
267 Point target_pos=(pos-canvas->rend_desc().get_focus()-origin)/exp(zoom)+canvas->rend_desc().get_focus();
269 if(canvas && get_amount() && canvas->get_context().get_color(target_pos).get_a()>=0.25)
273 return canvas->get_context().hit_check(target_pos);
275 return const_cast<Layer_PasteCanvas*>(this);
278 return context.hit_check(pos);
282 Layer_PasteCanvas::get_color(Context context, const Point &pos)const
284 if(!canvas || !get_amount())
285 return context.get_color(pos);
287 if(depth==MAX_DEPTH)return Color::alpha();depth_counter counter(depth);
289 Point target_pos=(pos-canvas->rend_desc().get_focus()-origin)/exp(zoom)+canvas->rend_desc().get_focus();
291 return Color::blend(canvas->get_context().get_color(target_pos),context.get_color(pos),get_amount(),get_blend_method());
296 Layer_PasteCanvas::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
298 if(cb && !cb->amount_complete(0,10000)) return false;
301 // if we are at the extent of our depth,
302 // then we should just return whatever is under us.
303 return context.accelerated_render(surface,quality,renddesc,cb);
305 depth_counter counter(depth);
307 if(!canvas || !get_amount())
308 return context.accelerated_render(surface,quality,renddesc,cb);
310 if(muck_with_time_ && curr_time!=Time::begin() && canvas->get_time()!=curr_time+time_offset)
311 canvas->set_time(curr_time+time_offset);
313 SuperCallback stageone(cb,0,4500,10000);
314 SuperCallback stagetwo(cb,4500,9000,10000);
315 SuperCallback stagethree(cb,9000,9999,10000);
317 RendDesc desc(renddesc);
318 Vector::value_type zoomfactor=1.0/exp(zoom);
320 desc.set_tl((desc.get_tl()-canvas->rend_desc().get_focus()-origin)*zoomfactor+canvas->rend_desc().get_focus());
321 desc.set_br((desc.get_br()-canvas->rend_desc().get_focus()-origin)*zoomfactor+canvas->rend_desc().get_focus());
322 desc.set_flags(RendDesc::PX_ASPECT);
324 if (is_solid_color() || context->empty())
326 surface->set_wh(renddesc.get_w(),renddesc.get_h());
329 else if (!context.accelerated_render(surface,quality,renddesc,&stageone))
332 Color::BlendMethod blend_method(get_blend_method());
333 const Rect full_bounding_rect(canvas->get_context().get_full_bounding_rect());
335 if(context->empty() ||
336 !etl::intersect(context.get_full_bounding_rect(),full_bounding_rect+origin))
338 if (Color::is_onto(blend_method)) return true;
339 if (blend_method==Color::BLEND_COMPOSITE) blend_method=Color::BLEND_STRAIGHT;
342 #ifdef SYNFIG_CLIP_PASTECANVAS
343 Rect area(desc.get_rect() & full_bounding_rect);
345 Point min(area.get_min());
346 Point max(area.get_max());
348 if (desc.get_tl()[0] > desc.get_br()[0]) swap(min[0], max[0]);
349 if (desc.get_tl()[1] > desc.get_br()[1]) swap(min[1], max[1]);
351 const int x(floor_to_int((min[0] - desc.get_tl()[0]) / desc.get_pw()));
352 const int y(floor_to_int((min[1] - desc.get_tl()[1]) / desc.get_ph()));
353 const int w( ceil_to_int((max[0] - desc.get_tl()[0]) / desc.get_pw()) - x);
354 const int h( ceil_to_int((max[1] - desc.get_tl()[1]) / desc.get_ph()) - y);
356 desc.set_subwindow(x,y,w,h);
358 // \todo this used to also have "area.area()<=0.000001 || " - is it useful?
359 // it was causing bug #1809480 (Zoom in beyond 8.75 in nested canvases fails)
360 if(desc.get_w()==0 || desc.get_h()==0)
362 if(cb && !cb->amount_complete(10000,10000)) return false;
365 #endif // SYNFIG_CLIP_PASTECANVAS
367 // render the canvas to be pasted onto pastesurface
368 Surface pastesurface;
369 if(!canvas->get_context().accelerated_render(&pastesurface,quality,desc,&stagetwo))
372 #ifdef SYNFIG_CLIP_PASTECANVAS
373 Surface::alpha_pen apen(surface->get_pen(x,y));
374 #else // SYNFIG_CLIP_PASTECANVAS
375 Surface::alpha_pen apen(surface->begin());
376 #endif // SYNFIG_CLIP_PASTECANVAS
378 apen.set_alpha(get_amount());
379 apen.set_blend_method(blend_method);
380 pastesurface.blit_to(apen);
382 if(cb && !cb->amount_complete(10000,10000)) return false;
388 Layer_PasteCanvas::get_bounding_rect()const
393 void Layer_PasteCanvas::get_times_vfunc(Node::time_set &set) const
396 if(canvas) tset = canvas->get_times();
398 Node::time_set::iterator i = tset.begin(), end = tset.end();
400 //Make sure we offset the time...
401 //! \todo: SOMETHING STILL HAS TO BE DONE WITH THE OTHER DIRECTION
402 // (recursing down the tree needs to take this into account too...)
405 #ifdef ADJUST_WAYPOINTS_FOR_TIME_OFFSET // see node.h
410 Layer::get_times_vfunc(set);