--- /dev/null
+/* === S I N F G =========================================================== */
+/*! \file circle.cpp
+** \brief Template Header
+**
+** $Id: circle.cpp,v 1.2 2005/01/24 03:08:17 darco Exp $
+**
+** \legal
+** Copyright (c) 2002 Robert B. Quattlebaum Jr.
+**
+** This software and associated documentation
+** are CONFIDENTIAL and PROPRIETARY property of
+** the above-mentioned copyright holder.
+**
+** You may not copy, print, publish, or in any
+** other way distribute this software without
+** a prior written agreement with
+** the copyright holder.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "circle.h"
+#include <sinfg/string.h>
+#include <sinfg/time.h>
+#include <sinfg/context.h>
+#include <sinfg/paramdesc.h>
+#include <sinfg/renddesc.h>
+#include <sinfg/surface.h>
+#include <sinfg/value.h>
+#include <sinfg/valuenode.h>
+
+#include <cmath>
+
+#endif
+
+using namespace sinfg;
+using namespace std;
+using namespace etl;
+
+/* -- G L O B A L S --------------------------------------------------------- */
+
+SINFG_LAYER_INIT(Circle);
+SINFG_LAYER_SET_NAME(Circle,"circle");
+SINFG_LAYER_SET_LOCAL_NAME(Circle,_("Circle"));
+SINFG_LAYER_SET_CATEGORY(Circle,_("Geometry"));
+SINFG_LAYER_SET_VERSION(Circle,"0.1");
+SINFG_LAYER_SET_CVS_ID(Circle,"$Id: circle.cpp,v 1.2 2005/01/24 03:08:17 darco Exp $");
+
+/* -- F U N C T I O N S ----------------------------------------------------- */
+
+Circle::Circle():
+ Layer_Composite (1.0,Color::BLEND_STRAIGHT),
+ color (Color::black()),
+ pos (0,0),
+ radius (1),
+ feather (0),
+ invert (false),
+ falloff (FALLOFF_INTERPOLATION_LINEAR)
+{
+ constructcache();
+}
+
+bool
+Circle::ImportParameters(const String ¶m, const ValueBase &value)
+{
+ IMPORT(color);
+ IMPORT(radius);
+ IMPORT(feather);
+ IMPORT(invert);
+ IMPORT(pos);
+ IMPORT(falloff);
+
+ return Layer_Composite::set_param(param,value);
+}
+
+bool
+Circle::set_param(const String ¶m, const ValueBase &value)
+{
+ if(ImportParameters(param,value))
+ {
+ constructcache();
+ return true;
+ }
+
+ return false;
+}
+
+ValueBase
+Circle::get_param(const String ¶m)const
+{
+ EXPORT(color);
+ EXPORT(radius);
+ EXPORT(feather);
+ EXPORT(invert);
+ EXPORT(pos);
+ EXPORT(falloff);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+Circle::get_param_vocab()const
+{
+ Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+ ret.push_back(ParamDesc("color")
+ .set_local_name(_("Color"))
+ );
+ ret.push_back(ParamDesc("radius")
+ .set_local_name(_("Radius"))
+ .set_origin("pos")
+ .set_is_distance()
+ );
+ ret.push_back(ParamDesc("feather")
+ .set_local_name(_("Feather"))
+ .set_is_distance()
+ );
+ ret.push_back(ParamDesc("pos")
+ .set_local_name(_("Center"))
+ );
+ ret.push_back(ParamDesc("invert")
+ .set_local_name(_("Invert"))
+ .set_description(_("Invert the circle"))
+ );
+
+ ret.push_back(ParamDesc("falloff")
+ .set_local_name(_("Falloff"))
+ .set_description(_("Determines the falloff function for the feather"))
+ .set_hint("enum")
+ .add_enum_value(FALLOFF_INTERPOLATION_LINEAR,"linear",_("Linear"))
+ .add_enum_value(FALLOFF_SQUARED,"squared",_("Squared"))
+ .add_enum_value(FALLOFF_SQRT,"sqrt",_("Square Root"))
+ .add_enum_value(FALLOFF_SIGMOND,"sigmond",_("Sigmond"))
+ .add_enum_value(FALLOFF_COSINE,"cosine",_("Cosine"))
+ );
+
+ return ret;
+}
+
+sinfg::Layer::Handle
+Circle::hit_check(sinfg::Context context, const sinfg::Point &point)const
+{
+ Point temp=pos-point;
+
+ if(get_amount()==0)
+ return context.hit_check(point);
+
+ bool in_circle(temp.mag_squared() <= radius*radius);
+
+ if(invert)
+ {
+ in_circle=!in_circle;
+ if(in_circle && get_amount()-(feather/radius)<=0.1 && get_blend_method()!=Color::BLEND_STRAIGHT)
+ in_circle=false;
+ }
+ else
+ {
+ if(get_amount()-(feather/radius)<=0.0)
+ in_circle=false;
+ }
+
+ if(in_circle)
+ {
+ sinfg::Layer::Handle tmp;
+ if(get_blend_method()==Color::BLEND_BEHIND && (tmp=context.hit_check(point)))
+ return tmp;
+ if(Color::is_onto(get_blend_method()) && !(tmp=context.hit_check(point)))
+ return 0;
+ return const_cast<Circle*>(this);
+ }
+
+ return context.hit_check(point);
+}
+
+//falloff functions
+Real Circle::SqdFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //squared proportional falloff
+ return (c.outer_radius_sqd - mag_sqd) / c.diff_sqd;
+}
+
+Real Circle::InvSqdFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //squared proportional falloff
+ return 1.0 - (c.outer_radius_sqd - mag_sqd) / c.diff_sqd;
+}
+
+
+Real Circle::SqrtFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //linear distance falloff
+ Real ret = ( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather;
+ //then take the square root of it
+ ret = sqrt(ret);
+ return ret;
+}
+
+Real Circle::InvSqrtFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //linear distance falloff
+ Real ret = ( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather;
+ //then take the square root of it
+ ret = 1.0 - sqrt(ret);
+ return ret;
+}
+
+Real Circle::LinearFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //linear distance falloff
+ return ( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather;
+}
+
+Real Circle::InvLinearFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ return 1.0 - ( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather;
+ //linear distance falloff
+}
+
+Real Circle::SigmondFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //linear distance falloff
+ Real ret = ( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather;
+ // inverse exponential of the linear falloff (asymptotes at 0 and 1)
+ // \frac{1.0}{ 1 + e^{- \( a*10-5 \)}}
+ ret = 1.0 / (1 + exp(-(ret*10-5)) );
+ return ret;
+}
+
+Real Circle::InvSigmondFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //linear distance falloff
+ Real ret = ( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather;
+ // inverse exponential of the linear falloff (asymptotes at 0 and 1)
+ // \frac{1.0}{ 1 + e^{- \( a*10-5 \)}}
+ ret = 1.0 - 1.0 / (1 + exp(-(ret*10-5)) );
+ return ret;
+}
+
+
+Real
+Circle::CosineFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ //Cosine distance falloff
+ return (1.0f-cos((( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather)*3.1415927))*0.5f;
+}
+
+Real
+Circle::InvCosineFalloff(const Circle::CircleDataCache &c, const Real &mag_sqd)
+{
+ return 1.0f-(1.0f-cos((( c.outer_radius - sqrt(mag_sqd) ) / c.double_feather)*3.1415927))*0.5f;
+ //Cosine distance falloff
+}
+
+void Circle::constructcache()
+{
+ cache.inner_radius = radius - feather;
+ if(cache.inner_radius < 0)
+ cache.inner_radius = 0;
+
+ cache.outer_radius = radius + feather;
+
+ cache.inner_radius_sqd = cache.inner_radius > 0 ? (radius-feather)*(radius-feather) : 0;
+ cache.outer_radius_sqd = (radius+feather)*(radius+feather);
+
+ cache.diff_sqd = feather*feather*4.0;
+ cache.double_feather = feather*2.0;
+
+ falloff_func = GetFalloffFunc();
+}
+
+Circle::FALLOFF_FUNC *Circle::GetFalloffFunc()const
+{
+ switch(falloff)
+ {
+ case FALLOFF_SQUARED: return invert?InvSqdFalloff:SqdFalloff;
+
+ case FALLOFF_SQRT: return invert?InvSqrtFalloff:SqrtFalloff;
+
+ case FALLOFF_INTERPOLATION_LINEAR: return invert?InvLinearFalloff:LinearFalloff;
+
+ case FALLOFF_SIGMOND: return invert?InvSigmondFalloff:SigmondFalloff;
+
+ case FALLOFF_COSINE:
+ default: return invert?InvCosineFalloff:CosineFalloff;
+ }
+}
+
+Color
+Circle::get_color(Context context, const Point &point)const
+{
+ if(radius==0 || is_disabled())
+ return context.get_color(point);
+
+
+ Point temp=pos-point;
+
+ /*const Real inner_radius = radius-feather;
+ const Real outer_radius = radius+feather;
+
+ const Real inner_radius_sqd = inner_radius > 0 ? (radius-feather)*(radius-feather) : 0;
+ const Real outer_radius_sqd = (radius+feather)*(radius+feather);
+
+ const Real diff_radii_sqd = outer_radius_sqd - inner_radius_sqd;
+ const Real double_feather = feather*2.0;*/
+
+ /*const Real &inner_radius = cache.inner_radius;
+ const Real &outer_radius = cache.outer_radius;*/
+
+ const Real &inner_radius_sqd = cache.inner_radius_sqd;
+ const Real &outer_radius_sqd = cache.outer_radius_sqd;
+
+ /*const Real &diff_radii_sqd = cache.diff_radii_sqd;
+ const Real &double_feather = cache.double_feather;*/
+
+ const Vector::value_type mag_squared = temp.mag_squared();
+
+ //Outside the circle, with feathering enabled
+ if( mag_squared > outer_radius_sqd )
+ {
+ // inverted -> outside == colored in
+ if(invert)
+ {
+ if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+ return color;
+ else
+ return Color::blend(color,context.get_color(point),get_amount(),get_blend_method());
+ }
+ else
+ return context.get_color(point);
+ }
+
+ //inside the circle's solid area (with feathering)
+ else if(mag_squared <= inner_radius_sqd)
+ {
+ // !invert -> solid area
+ if(!invert)
+ if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+ return color;
+ else
+ return Color::blend(color,context.get_color(point),get_amount(),get_blend_method());
+ else
+ return context.get_color(point);
+ }
+
+ //If we get here, the pixel is within the feathering area, and is thus subject to falloff
+ else
+ {
+ Color::value_type alpha;
+
+ /*switch(falloff)
+ {
+
+ case FALLOFF_SQUARED:
+ //squared proportional falloff
+ alpha = (outer_radius_sqd - mag_squared) / diff_radii_sqd;
+ break;
+
+ case FALLOFF_SQRT:
+ //linear distance falloff
+ alpha = ( outer_radius - sqrt(mag_squared) ) / double_feather;
+ //then take the square root of it
+ alpha = sqrt(alpha);
+ break;
+
+ case FALLOFF_INTERPOLATION_LINEAR:
+ //linear distance falloff
+ alpha = ( outer_radius - sqrt(mag_squared) ) / double_feather;
+ break;
+
+ case FALLOFF_SIGMOND:
+ default:
+ //linear distance falloff
+ alpha = ( outer_radius - sqrt(mag_squared) ) / double_feather;
+ // inverse exponential of the linear falloff (asymptotes at 0 and 1)
+ // \frac{1.0}{ 1 + e^{- \( a*10-5 \)}}
+ alpha = 1.0 / (1 + exp(-(alpha*10-5)) );
+ break;
+ }
+
+ //If we're inverted, we need to invert the falloff value
+ if(invert)
+ alpha=1.0-alpha;*/
+
+ alpha = falloff_func(cache,mag_squared);
+
+ //Compose falloff value with amount from the composite layer, and that is the blend value
+ alpha *= get_amount();
+
+ return Color::blend(color,context.get_color(point),alpha,get_blend_method());
+ }
+}
+
+Color NormalBlend(Color a, Color b, float amount)
+{
+ return (b-a)*amount+a;
+}
+
+
+bool
+Circle::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ // trivial case
+ if(is_disabled() || (radius==0 && invert==false))
+ return context.accelerated_render(surface,quality, renddesc, cb);
+
+ // Another trivial case
+ if(invert && radius==0 && is_solid_color())
+ {
+ surface->set_wh(renddesc.get_w(),renddesc.get_h());
+ surface->fill(color);
+ if(cb && !cb->amount_complete(10000,10000))
+ return false;
+ return true;
+ }
+
+ // Window Boundaries
+ const Point tl(renddesc.get_tl());
+ const Point br(renddesc.get_br());
+ const int w(renddesc.get_w());
+ const int h(renddesc.get_h());
+
+ const Real x_neg = tl[0] > br[0] ? -1 : 1;
+ const Real y_neg = tl[1] > br[1] ? -1 : 1;
+
+ // Width and Height of a pixel
+ const Real pw = (br[0] - tl[0]) / w;
+ const Real ph = (br[1] - tl[1]) / h;
+
+ // Increasing the feather amount by the size of
+ // a pixel will create an anti-aliased appearance
+ const Real newfeather=feather + (abs(ph)+abs(pw))/4.0;
+
+ //int u,v;
+ int left = (int) floor( (pos[0] - x_neg*(radius+newfeather) - tl[0]) / pw );
+ int right = (int) ceil( (pos[0] + x_neg*(radius+newfeather) - tl[0]) / pw );
+ int top = (int) floor( (pos[1] - y_neg*(radius+newfeather) - tl[1]) / ph );
+ int bottom = (int) ceil( (pos[1] + y_neg*(radius+newfeather) - tl[1]) / ph );
+
+ //clip the rectangle bounds
+ if(left < 0)
+ left = 0;
+ if(top < 0)
+ top = 0;
+ if(right >= w)
+ right = w-1;
+ if(bottom >= h)
+ bottom = h-1;
+
+ const Real inner_radius = radius-newfeather>0 ? radius-newfeather : 0;
+ const Real outer_radius = radius+newfeather;
+
+ const Real inner_radius_sqd = inner_radius*inner_radius;
+ const Real outer_radius_sqd = outer_radius*outer_radius;
+
+ const Real diff_radii_sqd = 4*newfeather*std::max(newfeather,radius);//4.0*radius*newfeather;
+ const Real double_feather = newfeather * 2.0;
+
+ //Compile the temporary cache for the falloff calculations
+ FALLOFF_FUNC *func = GetFalloffFunc();
+
+ const CircleDataCache cache =
+ {
+ inner_radius,outer_radius,
+ inner_radius_sqd,outer_radius_sqd,
+ diff_radii_sqd,double_feather
+ };
+
+ //info("Circle: Initialized everything");
+
+ //let the rendering begin
+ SuperCallback supercb(cb,0,9000,10000);
+
+ //if it's a degenerate circle, do what we need to do, and then leave
+ if(left >= right || top >= bottom)
+ {
+ if(invert)
+ {
+ if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+ {
+ surface->set_wh(w,h);
+ surface->fill(color);
+ return true;
+ }else
+ {
+ // Render what is behind us
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+
+ Surface::alpha_pen p(surface->begin(),get_amount(),_BlendFunc(get_blend_method()));
+
+ p.set_value(color);
+ p.put_block(h,w);
+ return true;
+ }
+ }else
+ {
+ // Render what is behind us
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+ return true;
+ }
+ }
+
+ if( (pos[0] - tl[0])*(pos[0] - tl[0]) + (pos[1] - tl[1])*(pos[1] - tl[1]) < inner_radius_sqd
+ && (pos[0] - br[0])*(pos[0] - br[0]) + (pos[1] - br[1])*(pos[1] - br[1]) < inner_radius_sqd
+ && (pos[0] - tl[0])*(pos[0] - tl[0]) + (pos[1] - br[1])*(pos[1] - br[1]) < inner_radius_sqd
+ && (pos[0] - br[0])*(pos[0] - br[0]) + (pos[1] - tl[1])*(pos[1] - tl[1]) < inner_radius_sqd )
+ {
+ if(invert)
+ {
+ // Render what is behind us
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+ }else
+ {
+ if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+ {
+ surface->set_wh(w,h);
+ surface->fill(color);
+ return true;
+ }
+ }
+ }
+
+ //info("Circle: Non degenerate, rasterize %c", invert);
+
+ //we start in the middle of the left-top pixel
+ Real leftf = (left + 0.5)*pw + tl[0];
+ Real topf = (top + 0.5)*ph + tl[1];
+
+ //the looping variables
+ Real x,y;
+ int i,j;
+
+ //Loop normally, since we are not inverted
+ if(!invert)
+ {
+ // Render what is behind us
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+
+ //make topf and leftf relative to the center of the circle
+ leftf -= pos[0];
+ topf -= pos[1];
+
+ j = top;
+ y = topf;
+
+ //Loop over the valid y-values in the bounding square
+ for(;j <= bottom; j++, y += ph)
+ {
+ i = left;
+ x = leftf;
+
+ //for each y-value, Loop over the bounding x-values in the bounding square
+ for(;i <= right; i++, x += pw)
+ {
+ //for each pixel, figure out the distance and blend
+ Real r = x*x + y*y;
+
+ //if in the inner circle then the full color shows through
+ if(r <= inner_radius_sqd)
+ {
+ if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+ (*surface)[j][i]=color;
+ else
+ (*surface)[j][i]=Color::blend(color,(*surface)[j][i],get_amount(),get_blend_method());
+ }
+ //if it's within the outer circle then it's in the feathering range
+ else if(r <= outer_radius_sqd)
+ {
+ /*float myamount;
+
+ switch(falloff)
+ {
+ case FALLOFF_SQUARED:
+ myamount = (outer_radius_sqd - r) / diff_radii_sqd;
+ break;
+
+ case FALLOFF_SQRT:
+ myamount = (outer_radius - sqrt(r)) / double_feather;
+ myamount = sqrt(myamount);
+ break;
+
+ case FALLOFF_INTERPOLATION_LINEAR:
+ myamount = (outer_radius - sqrt(r)) / double_feather;
+ break;
+
+ case FALLOFF_SIGMOND:
+ default:
+ myamount = (outer_radius - sqrt(r)) / double_feather;
+ myamount = 1.0 / ( 1 + exp(-(myamount*10 - 5)) );
+ break;
+ }*/
+
+ Real myamount = func(cache,r);
+
+ //if(myamount<0.0)myamount=0.0;
+ //if(myamount>1.0)myamount=1.0;
+ myamount *= get_amount();
+ (*surface)[j][i] = Color::blend(color,(*surface)[j][i],myamount,get_blend_method());
+ }
+ }
+ }
+ }
+ else
+ {
+ Surface background;
+ RendDesc desc(renddesc);
+ desc.set_flags(0);
+
+ int offset_x=0,offset_y=0;
+
+ //fill the surface with the background color initially
+ surface->set_wh(w,h);
+ surface->fill(color);
+
+ //then render the background to an alternate surface
+ if(get_amount() == 1 && get_blend_method() == Color::BLEND_STRAIGHT)
+ {
+ offset_x = left;
+ offset_y = top;
+
+ //if there is no background showing through we are done
+ if(right < left || bottom < top)
+ return true;
+
+ desc.set_subwindow(left,top,right-left+1,bottom-top+1);
+
+ // Render what is behind us
+ if(!context.accelerated_render(&background,quality,desc,&supercb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+ }
+ else
+ {
+ left = 0;
+ right = w-1;
+ top = 0;
+ bottom = h-1;
+
+ leftf = /*0.5*pw +*/ tl[0];
+ topf = /*0.5*ph +*/ tl[1];
+
+ // Render what is behind us
+ if(!context.accelerated_render(&background,quality,renddesc,&supercb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+ }
+
+ topf -= pos[1];
+ leftf-= pos[0];
+
+ j = top;
+ y = topf;
+
+ for(;j <= bottom; j++, y+=ph)
+ {
+ i = left;
+ x = leftf;
+
+ for(;i <= right; i++, x+=pw)
+ {
+ Vector::value_type r = x*x + y*y;
+
+ if(r < inner_radius_sqd)
+ {
+ (*surface)[j][i] = background[j-offset_y][i-offset_x];
+ }
+ else if(r < outer_radius_sqd)
+ {
+ /*float amount;
+
+ switch(falloff)
+ {
+ case FALLOFF_SQUARED:
+ amount = (r - inner_radius_sqd) / diff_radii_sqd;
+ break;
+ case FALLOFF_INTERPOLATION_LINEAR:
+ amount = (sqrt(r) - inner_radius) / double_feather;
+ break;
+ case FALLOFF_SQRT:
+ amount = (outer_radius - sqrt(r)) / double_feather;
+ amount = 1.0 - sqrt(amount);
+ break;
+ case FALLOFF_SIGMOND:
+ default:
+ amount = (outer_radius - sqrt(r)) / double_feather;
+ amount = 1.0 - ( 1.0/( 1 + exp(-(amount*10-5)) ) );
+ break;
+ }*/
+
+ Real amount = func(cache,r);
+
+ if(amount<0.0)amount=0.0;
+ if(amount>1.0)amount=1.0;
+
+ amount*=get_amount();
+
+ (*surface)[j][i]=Color::blend(color,background[j-offset_y][i-offset_x],amount,get_blend_method());
+ }else if(get_amount() != 1 || get_blend_method() != Color::BLEND_STRAIGHT)
+ {
+ (*surface)[j][i]=Color::blend(color,background[j][i],get_amount(),get_blend_method());
+ }
+ }
+ }
+ }
+
+ // Mark our progress as finished
+ if(cb && !cb->amount_complete(10000,10000))
+ return false;
+
+ return true;
+}
+
+Rect
+Circle::get_bounding_rect()const
+{
+ if(invert)
+ return Rect::full_plane();
+
+ Rect bounds(
+ pos[0]+(radius+feather),
+ pos[1]+(radius+feather),
+ pos[0]-(radius+feather),
+ pos[1]-(radius+feather)
+ );
+
+ return bounds;
+}
+
+Rect
+Circle::get_full_bounding_rect(Context context)const
+{
+ if(invert)
+ {
+ if(is_solid_color() && color.get_a()==0)
+ {
+ Rect bounds(
+ pos[0]+(radius+feather),
+ pos[1]+(radius+feather),
+ pos[0]-(radius+feather),
+ pos[1]-(radius+feather)
+ );
+ return bounds & context.get_full_bounding_rect();
+ }
+ return Rect::full_plane();
+ }
+
+ return Layer_Composite::get_full_bounding_rect(context);
+}
projects / synfig.git / blobdiff