--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file checkerboard.cpp
+** \brief Implementation of the "Checkerboard" 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 "checkerboard.h"
+
+#include <synfig/string.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+#include <synfig/paramdesc.h>
+#include <synfig/renddesc.h>
+#include <synfig/surface.h>
+#include <synfig/value.h>
+#include <synfig/valuenode.h>
+#include <synfig/segment.h>
+
+#endif
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(CheckerBoard);
+SYNFIG_LAYER_SET_NAME(CheckerBoard,"checker_board");
+SYNFIG_LAYER_SET_LOCAL_NAME(CheckerBoard,N_("Checkerboard"));
+SYNFIG_LAYER_SET_CATEGORY(CheckerBoard,N_("Geometry"));
+SYNFIG_LAYER_SET_VERSION(CheckerBoard,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(CheckerBoard,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+CheckerBoard::CheckerBoard():
+ Layer_Composite (1.0,Color::BLEND_STRAIGHT),
+ color (Color::black()),
+ origin (Point(0.125,0.125)),
+ size (Point(0.25,0.25))
+{
+
+ set_blend_method(Color::BLEND_STRAIGHT);
+}
+
+inline bool
+CheckerBoard::point_test(const synfig::Point& getpos)const
+{
+ int val=((int)((getpos[0]-origin[0])/size[0])+(int)((getpos[1]-origin[1])/size[1]));
+ if(getpos[0]-origin[0] < 0.0)
+ val++;
+ if(getpos[1]-origin[1] < 0.0)
+ val++;
+ return val&1;
+}
+
+bool
+CheckerBoard::set_param(const String ¶m, const ValueBase &value)
+{
+ IMPORT_PLUS(color, { if (color.get_a() == 0) { if (converted_blend_) {
+ set_blend_method(Color::BLEND_ALPHA_OVER);
+ color.set_a(1); } else transparent_color_ = true; } });
+ IMPORT(origin);
+ IMPORT(size);
+
+ IMPORT_AS(origin,"pos");
+ IMPORT_AS(origin[0],"pos[0]");
+ IMPORT_AS(origin[1],"pos[1]");
+
+ return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+CheckerBoard::get_param(const String ¶m)const
+{
+ EXPORT(color);
+ EXPORT(origin);
+ EXPORT(size);
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+CheckerBoard::get_param_vocab()const
+{
+ Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+ ret.push_back(ParamDesc("color")
+ .set_local_name(_("Color"))
+ .set_description(_("Color of checkers"))
+ );
+ ret.push_back(ParamDesc("origin")
+ .set_local_name(_("Origin"))
+ );
+ ret.push_back(ParamDesc("size")
+ .set_local_name(_("Size"))
+ .set_description(_("Size of checkers"))
+ .set_origin("origin")
+ );
+
+ return ret;
+}
+
+synfig::Layer::Handle
+CheckerBoard::hit_check(synfig::Context context, const synfig::Point &getpos)const
+{
+ if(get_amount()!=0.0 && point_test(getpos))
+ {
+ synfig::Layer::Handle tmp;
+ if(get_blend_method()==Color::BLEND_BEHIND && (tmp=context.hit_check(getpos)))
+ return tmp;
+ if(Color::is_onto(get_blend_method()) && !(tmp=context.hit_check(getpos)))
+ return 0;
+ return const_cast<CheckerBoard*>(this);
+ }
+ else
+ return context.hit_check(getpos);
+}
+
+Color
+CheckerBoard::get_color(Context context, const Point &getpos)const
+{
+ if(get_amount()!=0.0 && point_test(getpos))
+ {
+ if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
+ return color;
+ else
+ return Color::blend(color,context.get_color(getpos),get_amount(),get_blend_method());
+ }
+ else
+ return Color::blend(Color::alpha(),context.get_color(getpos),get_amount(),get_blend_method());
+}
+
+bool
+CheckerBoard::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ SuperCallback supercb(cb,0,9500,10000);
+
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ return false;
+ if(get_amount()==0)
+ return true;
+
+ int x,y;
+
+ const Point tl(renddesc.get_tl());
+ Point pos;
+ const int w(surface->get_w());
+ const int h(surface->get_h());
+ const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
+
+ Surface::alpha_pen apen(surface->begin());
+
+ apen.set_alpha(get_amount());
+ apen.set_blend_method(get_blend_method());
+ apen.set_value(color);
+
+ for(y=0,pos[1]=tl[1];y<h;y++,apen.inc_y(),apen.dec_x(x),pos[1]+=ph)
+ for(x=0,pos[0]=tl[0];x<w;x++,apen.inc_x(),pos[0]+=pw)
+ if(point_test(pos))
+ apen.put_value();
+
+ // Mark our progress as finished
+ if(cb && !cb->amount_complete(10000,10000))
+ return false;
+
+ return true;
+}
projects / synfig.git / blobdiff