+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file layer_pastecanvas.cpp
-** \brief Implementation of the "Paste Canvas" layer
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007, 2008 Chris Moore
-**
-** This package is free software; you can redistribute it and/or
-** modify it under the terms of the GNU General Public License as
-** published by the Free Software Foundation; either version 2 of
-** the License, or (at your option) any later version.
-**
-** This package is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-** General Public License for more details.
-** \endlegal
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "layer_pastecanvas.h"
-#include "string.h"
-#include "time.h"
-#include "context.h"
-#include "paramdesc.h"
-#include "renddesc.h"
-#include "surface.h"
-#include "value.h"
-#include "valuenode.h"
-#include "canvas.h"
-
-#endif
-
-/* === U S I N G =========================================================== */
-
-using namespace etl;
-using namespace std;
-using namespace synfig;
-
-/* === M A C R O S ========================================================= */
-
-#define MAX_DEPTH 10
-
-// if this isn't defined, the 'dead heads' in examples/pirates.sifz don't render properly
-#define SYNFIG_CLIP_PASTECANVAS
-
-//#ifdef __APPLE__
-//#undef SYNFIG_CLIP_PASTECANVAS
-//#endif
-
-/* === C L A S S E S ======================================================= */
-
-class depth_counter // Makes our recursive depth counter exception-safe
-{
- int *depth;
-public:
- depth_counter(int &x):depth(&x) { (*depth)++; }
- ~depth_counter() { (*depth)--; }
-};
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_LAYER_INIT(Layer_PasteCanvas);
-SYNFIG_LAYER_SET_NAME(Layer_PasteCanvas,"PasteCanvas"); // todo: use paste_canvas
-SYNFIG_LAYER_SET_LOCAL_NAME(Layer_PasteCanvas,N_("Paste Canvas"));
-SYNFIG_LAYER_SET_CATEGORY(Layer_PasteCanvas,N_("Other"));
-SYNFIG_LAYER_SET_VERSION(Layer_PasteCanvas,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(Layer_PasteCanvas,"$Id$");
-
-/* === M E T H O D S ======================================================= */
-
-Layer_PasteCanvas::Layer_PasteCanvas():
- origin(0,0),
- depth(0),
- zoom(0),
- time_offset(0),
- extra_reference(false)
-{
- children_lock=false;
- muck_with_time_=true;
- curr_time=Time::begin();
-}
-
-Layer_PasteCanvas::~Layer_PasteCanvas()
-{
-/* if(canvas)
- canvas->parent_set.erase(this);
-*/
-
- //if(canvas)DEBUGINFO(strprintf("%d",canvas->count()));
-
- set_sub_canvas(0);
-
- //if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
- //if(extra_reference)
- // canvas->unref();
-}
-
-String
-Layer_PasteCanvas::get_local_name()const
-{
- if(!canvas) return _("Pasted Canvas");
- if(canvas->is_inline()) return _("Inline Canvas");
- if(canvas->get_root()==get_canvas()->get_root()) return '[' + canvas->get_id() + ']';
-
- return '[' + canvas->get_file_name() + ']';
-}
-
-Layer::Vocab
-Layer_PasteCanvas::get_param_vocab()const
-{
- Layer::Vocab ret(Layer_Composite::get_param_vocab());
-
- ret.push_back(ParamDesc("origin")
- .set_local_name(_("Origin"))
- .set_description(_("Point where you want the origin to be"))
- );
- ret.push_back(ParamDesc("canvas")
- .set_local_name(_("Canvas"))
- .set_description(_("Canvas to paste"))
- );
- ret.push_back(ParamDesc("zoom")
- .set_local_name(_("Zoom"))
- .set_description(_("Size of canvas"))
- );
-
- ret.push_back(ParamDesc("time_offset")
- .set_local_name(_("Time Offset"))
- );
-
- ret.push_back(ParamDesc("children_lock")
- .set_local_name(_("Children Lock"))
- );
-
- // optimize_layers() in canvas.cpp makes a new PasteCanvas layer
- // and copies over the parameters of the old layer. the
- // 'curr_time' member wasn't being copied, so I've added it as a
- // hidden, non critical parameter, and now it will be. this
- // allows a single exported subcanvas to be used more than once at
- // a time, with different time offets in each. see bug #1896557.
- ret.push_back(ParamDesc("curr_time")
- .set_local_name(_("Current Time"))
- .not_critical()
- .hidden()
- );
-
- return ret;
-}
-
-bool
-Layer_PasteCanvas::set_param(const String & param, const ValueBase &value)
-{
- IMPORT(origin);
-
- // IMPORT(canvas);
- if(param=="canvas" && value.same_type_as(Canvas::Handle()))
- {
- set_sub_canvas(value.get(Canvas::Handle()));
- return true;
- }
-
- //! \todo this introduces bug 1844764 if enabled; it was introduced in r954.
- // http://synfig.org/images/3/3d/Moving-waypoints.sifz is an
- // example of an animation that has its waypoints displayed
- // incorrectly without this fix; select the outer layer and drag
- // the time slider. The linear waypoints don't take effect until
- // 5s, but the time slider appears to pass the first one at 3s.
-#if 0
- if (param=="time_offset" && value.same_type_as(time_offset))
- {
- if (time_offset != value.get(Time()))
- {
- value.put(&time_offset);
- // notify that the time_offset has changed so we can update the
- // waypoint positions in parent layers
- changed();
- }
- return true;
- }
-#else
- IMPORT(time_offset);
-#endif
-
- IMPORT(children_lock);
- IMPORT(zoom);
- IMPORT(curr_time);
-
- return Layer_Composite::set_param(param,value);
-}
-
-void
-Layer_PasteCanvas::set_sub_canvas(etl::handle<synfig::Canvas> x)
-{
- if(canvas && muck_with_time_)
- remove_child(canvas.get());
-
- // if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
- if (extra_reference)
- canvas->unref();
-
- child_changed_connection.disconnect();
-
- canvas=x;
-
- /*if(canvas)
- child_changed_connection=canvas->signal_changed().connect(
- sigc::mem_fun(
- *this,
- &Layer_PasteCanvas::changed
- )
- );
- */
- if(canvas)
- bounds = ((canvas->get_context().get_full_bounding_rect() - canvas->rend_desc().get_focus()) * exp(zoom) +
- origin + canvas->rend_desc().get_focus());
-
- if(canvas && muck_with_time_)
- add_child(canvas.get());
-
- if(canvas && (canvas->is_inline() || !get_canvas() || get_canvas()->get_root()!=canvas->get_root()))
- {
- canvas->ref();
- extra_reference = true;
- }
- else
- extra_reference = false;
-
- if(canvas)
- on_canvas_set();
-}
-
-// This is called whenever the parent canvas gets set/changed
-void
-Layer_PasteCanvas::on_canvas_set()
-{
- //synfig::info("before count()=%d",count());
- if(get_canvas() && canvas && canvas->is_inline() && canvas->parent()!=get_canvas())
- {
- //synfig::info("during count()=%d",count());
- canvas->set_inline(get_canvas());
- }
- //synfig::info("after count()=%d",count());
-}
-
-ValueBase
-Layer_PasteCanvas::get_param(const String& param)const
-{
- EXPORT(origin);
- EXPORT(canvas);
- EXPORT(zoom);
- EXPORT(time_offset);
- EXPORT(children_lock);
- EXPORT(curr_time);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return Layer_Composite::get_param(param);
-}
-
-void
-Layer_PasteCanvas::set_time(Context context, Time time)const
-{
- if(depth==MAX_DEPTH)return;depth_counter counter(depth);
- curr_time=time;
-
- context.set_time(time);
- if(canvas)
- {
- canvas->set_time(time+time_offset);
-
- bounds=(canvas->get_context().get_full_bounding_rect()-canvas->rend_desc().get_focus())*exp(zoom)+origin+canvas->rend_desc().get_focus();
- }
- else
- bounds=Rect::zero();
-}
-
-synfig::Layer::Handle
-Layer_PasteCanvas::hit_check(synfig::Context context, const synfig::Point &pos)const
-{
- if(depth==MAX_DEPTH)return 0;depth_counter counter(depth);
-
- if (canvas) {
- Point target_pos=(pos-canvas->rend_desc().get_focus()-origin)/exp(zoom)+canvas->rend_desc().get_focus();
-
- if(canvas && get_amount() && canvas->get_context().get_color(target_pos).get_a()>=0.25)
- {
- if(!children_lock)
- {
- return canvas->get_context().hit_check(target_pos);
- }
- return const_cast<Layer_PasteCanvas*>(this);
- }
- }
- return context.hit_check(pos);
-}
-
-Color
-Layer_PasteCanvas::get_color(Context context, const Point &pos)const
-{
- if(!canvas || !get_amount())
- return context.get_color(pos);
-
- if(depth==MAX_DEPTH)return Color::alpha();depth_counter counter(depth);
-
- Point target_pos=(pos-canvas->rend_desc().get_focus()-origin)/exp(zoom)+canvas->rend_desc().get_focus();
-
- return Color::blend(canvas->get_context().get_color(target_pos),context.get_color(pos),get_amount(),get_blend_method());
-}
-
-
-bool
-Layer_PasteCanvas::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- if(cb && !cb->amount_complete(0,10000)) return false;
-
- if(depth==MAX_DEPTH)
- // if we are at the extent of our depth,
- // then we should just return whatever is under us.
- return context.accelerated_render(surface,quality,renddesc,cb);
-
- depth_counter counter(depth);
-
- if(!canvas || !get_amount())
- return context.accelerated_render(surface,quality,renddesc,cb);
-
- SuperCallback stageone(cb,0,4500,10000);
- SuperCallback stagetwo(cb,4500,9000,10000);
- SuperCallback stagethree(cb,9000,9999,10000);
-
- RendDesc desc(renddesc);
- Vector::value_type zoomfactor=1.0/exp(zoom);
- desc.clear_flags();
- desc.set_tl((desc.get_tl()-canvas->rend_desc().get_focus()-origin)*zoomfactor+canvas->rend_desc().get_focus());
- desc.set_br((desc.get_br()-canvas->rend_desc().get_focus()-origin)*zoomfactor+canvas->rend_desc().get_focus());
- desc.set_flags(RendDesc::PX_ASPECT);
-
- if (is_solid_color() || context->empty())
- {
- surface->set_wh(renddesc.get_w(),renddesc.get_h());
- surface->clear();
- }
- else if (!context.accelerated_render(surface,quality,renddesc,&stageone))
- return false;
-
- if(muck_with_time_ && curr_time!=Time::begin() && canvas->get_time()!=curr_time+time_offset)
- canvas->set_time(curr_time+time_offset);
-
- Color::BlendMethod blend_method(get_blend_method());
- const Rect full_bounding_rect(canvas->get_context().get_full_bounding_rect());
-
- bool blend_using_straight = false; // use 'straight' just for the central blit
-
- // sometimes the user changes the parameters while we're
- // rendering, causing our pasted canvas' bounding box to shrink
- // and no longer overlap with our tile. if that has happened,
- // let's just stop now - we'll be refreshing soon anyway
- //! \todo shouldn't a mutex ensure this isn't needed?
- // http://synfig.org/images/d/d2/Bbox-change.sifz is an example
- // that shows this happening - open the encapsulation, select the
- // 'shade', and toggle the 'invert' parameter quickly.
- // Occasionally you'll see:
- // error: Context::accelerated_render(): Layer "shade" threw a bad_alloc exception!
- // where the shade layer tries to allocate itself a canvas of
- // negative proportions, due to changing bounding boxes.
- if (!etl::intersect(desc.get_rect(), full_bounding_rect))
- {
- warning("%s:%d bounding box shrank while rendering?", __FILE__, __LINE__);
- return true;
- }
-
- // we have rendered what's under us, if necessary
- if(context->empty())
- {
- // if there's nothing under us, and we're blending 'onto', then we've finished
- if (Color::is_onto(blend_method)) return true;
-
- // there's nothing under us, so using straight blending is
- // faster than and equivalent to using composite, but we don't
- // want to blank the surrounding areas
- if (blend_method==Color::BLEND_COMPOSITE) blend_using_straight = true;
- }
-
- if (!etl::intersect(context.get_full_bounding_rect(),full_bounding_rect+origin))
- {
- // if there's no intersection between the context and our surface, and we're rendering 'onto', then we're done
- if (Color::is_onto(blend_method)) return true;
-
- /* 'straight' is faster than 'composite' and has the same
- * effect if the affected area of the lower layer is
- * transparent; however, if we're not clipping the blit to
- * just the bounding rectangle, the affected area is the whole
- * tile, so we can't use this optimisation. if we are
- * clipping, then we can use 'straight' to blit the clipped
- * rectangle, but we shouldn't set blend_method to 'straight',
- * or the surrounding areas will be blanked, which we don't
- * want.
- */
-#ifdef SYNFIG_CLIP_PASTECANVAS
- if (blend_method==Color::BLEND_COMPOSITE) blend_using_straight = true;
-#endif // SYNFIG_CLIP_PASTECANVAS
- }
-
-#ifdef SYNFIG_CLIP_PASTECANVAS
- Rect area(desc.get_rect() & full_bounding_rect);
-
- Point min(area.get_min());
- Point max(area.get_max());
-
- if (desc.get_tl()[0] > desc.get_br()[0]) swap(min[0], max[0]);
- if (desc.get_tl()[1] > desc.get_br()[1]) swap(min[1], max[1]);
-
- const int x(floor_to_int((min[0] - desc.get_tl()[0]) / desc.get_pw()));
- const int y(floor_to_int((min[1] - desc.get_tl()[1]) / desc.get_ph()));
- const int w( ceil_to_int((max[0] - desc.get_tl()[0]) / desc.get_pw()) - x);
- const int h( ceil_to_int((max[1] - desc.get_tl()[1]) / desc.get_ph()) - y);
-
- const int tw = desc.get_w();
- const int th = desc.get_h();
-
- desc.set_subwindow(x,y,w,h);
-
- // \todo this used to also have "area.area()<=0.000001 || " - is it useful?
- // it was causing bug #1809480 (Zoom in beyond 8.75 in nested canvases fails)
- if(desc.get_w()==0 || desc.get_h()==0)
- {
- if(cb && !cb->amount_complete(10000,10000)) return false;
- return true;
- }
-
- // SYNFIG_CLIP_PASTECANVAS is defined, so we are only touching the
- // pixels within the affected rectangle. If the blend method is
- // 'straight', then we need to blend transparent pixels with the
- // clipped areas of this tile, because with the 'straight' blend
- // method, even transparent pixels have an effect on the layers below
- if (Color::is_straight(blend_method))
- {
- Surface clearsurface;
-
- Surface::alpha_pen apen(surface->begin());
- apen.set_alpha(get_amount());
-
- // the area we're about to blit is transparent, so it doesn't
- // matter whether we use 'straight' or 'straight onto' here
- if (blend_method == Color::BLEND_ALPHA_BRIGHTEN)
- apen.set_blend_method(blend_method);
- else
- apen.set_blend_method(Color::BLEND_STRAIGHT);
-
- /* This represents the area we're pasting into the tile,
- * within the tile as a whole. Areas (A), (B), (C) and (D)
- * need blending with the underlying context if they're not
- * zero-sized:
- *
- * 0 x x+w tw
- * 0 +------------------------+
- * | |
- * | (A) |
- * | |
- * y | - - +----------+ - - - |
- * | | | |
- * | (C) | w by h | (D) |
- * | | | |
- * y+h | - - +----------+ - - - |
- * | |
- * | (B) |
- * | |
- * tw +------------------------+
- */
-
- if (y > 0) // draw the full-width strip above the rectangle (A)
- { apen.move_to(0,0); clearsurface.set_wh(tw,y); clearsurface.clear(); clearsurface.blit_to(apen); }
- if (y+h < th) // draw the full-width strip below the rectangle (B)
- { apen.move_to(0,y+h); clearsurface.set_wh(tw,th-(y+h)); clearsurface.clear(); clearsurface.blit_to(apen); }
- if (x > 0) // draw the box directly left of the rectangle (C)
- { apen.move_to(0,y); clearsurface.set_wh(x,h); clearsurface.clear(); clearsurface.blit_to(apen); }
- if (x+w < tw) // draw the box directly right of the rectangle (D)
- { apen.move_to(x+w,y); clearsurface.set_wh(tw-(x+w),h); clearsurface.clear(); clearsurface.blit_to(apen); }
- }
-#endif // SYNFIG_CLIP_PASTECANVAS
-
- // render the canvas to be pasted onto pastesurface
- Surface pastesurface;
- if(!canvas->get_context().accelerated_render(&pastesurface,quality,desc,&stagetwo))
- return false;
-
-#ifdef SYNFIG_CLIP_PASTECANVAS
- Surface::alpha_pen apen(surface->get_pen(x,y));
-#else // SYNFIG_CLIP_PASTECANVAS
- Surface::alpha_pen apen(surface->begin());
-#endif // SYNFIG_CLIP_PASTECANVAS
-
- apen.set_alpha(get_amount());
- apen.set_blend_method(blend_using_straight ? Color::BLEND_STRAIGHT : blend_method);
- pastesurface.blit_to(apen);
-
- if(cb && !cb->amount_complete(10000,10000)) return false;
-
- return true;
-}
-
-Rect
-Layer_PasteCanvas::get_bounding_rect()const
-{
- return bounds;
-}
-
-void Layer_PasteCanvas::get_times_vfunc(Node::time_set &set) const
-{
- Node::time_set tset;
- if(canvas) tset = canvas->get_times();
-
- Node::time_set::iterator i = tset.begin(), end = tset.end();
-
- //Make sure we offset the time...
- //! \todo: SOMETHING STILL HAS TO BE DONE WITH THE OTHER DIRECTION
- // (recursing down the tree needs to take this into account too...)
- for(; i != end; ++i)
- set.insert(*i
-#ifdef ADJUST_WAYPOINTS_FOR_TIME_OFFSET // see node.h
- - time_offset
-#endif
- );
-
- Layer::get_times_vfunc(set);
-}
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