--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file rectangle.cpp
+** \brief Implementation of the "Rectangle" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002 Robert B. Quattlebaum Jr.
+** 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 <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 <ETL/pen>
+#include <ETL/misc>
+
+#include "rectangle.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace etl;
+using namespace std;
+using namespace synfig;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(Rectangle);
+SYNFIG_LAYER_SET_NAME(Rectangle,"rectangle");
+SYNFIG_LAYER_SET_LOCAL_NAME(Rectangle,N_("Rectangle"));
+SYNFIG_LAYER_SET_CATEGORY(Rectangle,N_("Geometry"));
+SYNFIG_LAYER_SET_VERSION(Rectangle,"0.2");
+SYNFIG_LAYER_SET_CVS_ID(Rectangle,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/*
+inline int ceil_to_int(const float x) { return static_cast<int>(ceil(x)); }
+inline int ceil_to_int(const double x) { return static_cast<int>(ceil(x)); }
+
+inline int floor_to_int(const float x) { return static_cast<int>(floor(x)); }
+inline int floor_to_int(const double x) { return static_cast<int>(floor(x)); }
+*/
+
+/* === M E T H O D S ======================================================= */
+
+/* === E N T R Y P O I N T ================================================= */
+
+Rectangle::Rectangle():
+ Layer_Composite(1.0,Color::BLEND_STRAIGHT),
+ color(Color::black()),
+ point1(0,0),
+ point2(1,1),
+ expand(0),
+ invert(false)
+{
+}
+
+bool
+Rectangle::set_param(const String & param, 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(point1);
+ IMPORT(point2);
+ IMPORT(expand);
+ IMPORT(invert);
+
+ return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+Rectangle::get_param(const String ¶m)const
+{
+ EXPORT(color);
+ EXPORT(point1);
+ EXPORT(point2);
+ EXPORT(expand);
+ EXPORT(invert);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+Rectangle::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("point1")
+ .set_local_name(_("Point 1"))
+ .set_box("point2")
+ );
+
+ ret.push_back(ParamDesc("point2")
+ .set_local_name(_("Point 2"))
+ );
+
+ ret.push_back(ParamDesc("expand")
+ .set_is_distance()
+ .set_local_name(_("Expand amount"))
+ );
+
+ ret.push_back(ParamDesc("invert")
+ .set_local_name(_("Invert the rectangle"))
+ );
+
+ return ret;
+}
+
+synfig::Layer::Handle
+Rectangle::hit_check(synfig::Context context, const synfig::Point &pos)const
+{
+ if(is_disabled())
+ return context.hit_check(pos);
+
+ Point max,min;
+
+ max[0]=std::max(point1[0],point2[0])+expand;
+ max[1]=std::max(point1[1],point2[1])+expand;
+ min[0]=std::min(point1[0],point2[0])-expand;
+ min[1]=std::min(point1[1],point2[1])-expand;
+
+ bool intersect(false);
+
+ if( pos[0]<max[0] && pos[0]>min[0] &&
+ pos[1]<max[1] && pos[1]>min[1] )
+ {
+ intersect=true;
+ }
+
+ if(invert)
+ intersect=!intersect;
+
+ if(intersect)
+ {
+ synfig::Layer::Handle tmp;
+ if(get_blend_method()==Color::BLEND_BEHIND && (tmp=context.hit_check(pos)))
+ return tmp;
+ if(Color::is_onto(get_blend_method()) && !(tmp=context.hit_check(pos)))
+ return 0;
+ return const_cast<Rectangle*>(this);
+ }
+
+ return context.hit_check(pos);
+}
+
+bool
+Rectangle::is_solid_color()const
+{
+ return Layer_Composite::is_solid_color() ||
+ (get_blend_method() == Color::BLEND_COMPOSITE &&
+ get_amount() == 1.0f &&
+ color.get_a() == 1.0f);
+}
+
+Color
+Rectangle::get_color(Context context, const Point &pos)const
+{
+ if(is_disabled())
+ return context.get_color(pos);
+
+ Point max,min;
+
+ max[0]=std::max(point1[0],point2[0])+expand;
+ max[1]=std::max(point1[1],point2[1])+expand;
+ min[0]=std::min(point1[0],point2[0])-expand;
+ min[1]=std::min(point1[1],point2[1])-expand;
+
+/**************************
+// This is darco's old-old-old feathered box code
+// it produces really nice feathered edges
+ if(feather!=0.0)
+ {
+ if( pos[0]<=max[0]-feather/2.0 && pos[0]>=min[0]+feather/2.0 &&
+ pos[1]<=max[1]-feather/2.0 && pos[1]>=min[1]+feather/2.0 )
+ {
+ if(invert)
+ return (*context).GetColor(context,pos);
+ else
+ return color;
+ }
+
+ if( pos[0]>=max[0]+feather/2.0 || pos[0]<=min[0]-feather/2.0 ||
+ pos[1]>=max[1]+feather/2.0 || pos[1]<=min[1]-feather/2.0 )
+ {
+ if(invert)
+ return color;
+ else
+ return (*context).GetColor(context,pos);
+ }
+
+ Color::unit alpha=1000000;
+ Color::unit alpha2=1000000;
+
+ if(max[0]-pos[0]+feather/2.0<alpha)
+ alpha=max[0]-pos[0]+feather/2.0;
+ if(pos[0]-min[0]+feather/2.0<alpha)
+ alpha=pos[0]-min[0]+feather/2.0;
+
+ if(max[1]-pos[1]+feather/2.0<alpha2)
+ alpha2=max[1]-pos[1]+feather/2.0;
+ if(pos[1]-min[1]+feather/2.0<alpha2)
+ alpha2=pos[1]-min[1]+feather/2.0;
+
+
+ if(alpha<=feather && alpha2<=feather)
+ {
+ alpha=feather-alpha;
+ alpha2=feather-alpha2;
+
+ alpha=sqrt(alpha*alpha+alpha2*alpha2);
+
+ if(alpha>=feather)
+ {
+ if(invert)
+ return color;
+ else
+ return (*context).GetColor(context,pos);
+ }
+
+ alpha=feather-alpha;
+ }
+ else
+ {
+ alpha=(alpha<alpha2)?alpha:alpha2;
+ }
+
+ alpha/=feather;
+
+ if(invert)
+ alpha=1.0-alpha;
+
+ return Color::blend(color,context.get_color(pos),alpha,get_blend_method());
+ }
+
+*****************/
+
+ if( pos[0]<max[0] && pos[0]>min[0] &&
+ pos[1]<max[1] && pos[1]>min[1] )
+ {
+ // inside the expanded rectangle
+ if(invert)
+ return Color::blend(Color::alpha(),context.get_color(pos),get_amount(),get_blend_method());
+
+ if(is_solid_color())
+ return color;
+
+ return Color::blend(color,context.get_color(pos),get_amount(),get_blend_method());
+ }
+ else
+ {
+ // outside the expanded rectangle
+ if(!invert)
+ return Color::blend(Color::alpha(),context.get_color(pos),get_amount(),get_blend_method());
+
+ if(is_solid_color())
+ return color;
+
+ return Color::blend(color,context.get_color(pos),get_amount(),get_blend_method());
+ }
+}
+
+bool
+Rectangle::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ if(is_disabled())
+ return context.accelerated_render(surface,quality,renddesc,cb);
+
+ const Point tl(renddesc.get_tl());
+ const Point br(renddesc.get_br());
+
+ const int w(renddesc.get_w());
+ const int h(renddesc.get_h());
+
+ // Width and Height of a pixel
+ const Real pw = (br[0] - tl[0]) / w;
+ const Real ph = (br[1] - tl[1]) / h;
+
+ Point max(point1),min(point2);
+
+
+
+
+ /*
+
+ if(invert)
+ {
+ max=context.get_bounding_rect().get_max();
+ min=context.get_bounding_rect().get_min();
+ }
+ else
+ {
+ max=context.get_full_bounding_rect().get_max();
+ min=context.get_full_bounding_rect().get_min();
+ }
+ */
+
+
+
+
+
+ if((min[0] > max[0]) ^ (pw < 0))swap(min[0],max[0]);
+ if((min[1] > max[1]) ^ (ph < 0))swap(min[1],max[1]);
+
+ if(min[0] > max[0])
+ {
+ min[0]+=expand;
+ max[0]-=expand;
+ }
+ else
+ {
+ min[0]-=expand;
+ max[0]+=expand;
+ }
+
+ if(min[1] > max[1])
+ {
+ min[1]+=expand;
+ max[1]-=expand;
+ }
+ else
+ {
+ min[1]-=expand;
+ max[1]+=expand;
+ }
+
+ if(invert)
+ {
+ int left(floor_to_int((min[0]-tl[0])/pw));
+ int right(ceil_to_int((max[0]-tl[0])/pw));
+ int top(floor_to_int((min[1]-tl[1])/ph));
+ int bottom(ceil_to_int((max[1]-tl[1])/ph));
+
+ float left_edge((min[0]-tl[0])/pw-float(left));
+ float right_edge(float(right)-(max[0]-tl[0])/pw);
+ float top_edge((min[1]-tl[1])/ph-float(top));
+ float bottom_edge(float(bottom)-(max[1]-tl[1])/ph);
+
+ if(top<0)top=0,top_edge=0;
+ if(left<0)left=0,left_edge=0;
+ if(bottom>h)bottom=h,bottom_edge=0;
+ if(right>w)right=w,right_edge=0;
+
+ if(is_solid_color())
+ {
+ Surface subimage;
+ RendDesc desc(renddesc);
+ desc.set_flags(0);
+
+ //fill the surface with the background color initially
+ surface->set_wh(w,h);
+ surface->fill(color);
+
+ // Check for the case where there is nothing to render
+ if (right <= left || bottom <= top)
+ return true;
+
+ desc.set_subwindow(left,top,right-left,bottom-top);
+
+ // Render what is behind us
+ if(!context.accelerated_render(&subimage,quality,desc,cb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+
+ Surface::pen pen(surface->get_pen(left,top));
+
+ subimage.blit_to(pen);
+ }
+ else
+ {
+ if(!context.accelerated_render(surface,quality,renddesc,cb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+
+ Surface subimage;
+
+ // Check for the case where there is something to render
+ if (right > left && bottom > top)
+ {
+ // save a copy of the overlapping region from surface into subimage
+ subimage.set_wh(right-left,bottom-top);
+ Surface::pen subimage_pen(subimage.begin());
+ surface->blit_to(subimage_pen,left,top,right-left,bottom-top);
+ }
+
+ // fill surface with the rectangle's color
+ Surface::alpha_pen surface_pen(surface->begin(),get_amount(),get_blend_method());
+ surface->fill(color,surface_pen,w,h);
+
+ if (subimage)
+ {
+ // copy the saved overlapping region back from subimage into surface
+ Surface::pen pen(surface->get_pen(left,top));
+ subimage.blit_to(pen);
+ }
+ else
+ // if there's no overlapping region, return now of the following code corrupts memory
+ return true;
+ }
+
+ Surface::alpha_pen pen;
+
+ if(bottom-1>=0 && bottom_edge)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left,bottom-1),get_amount()*bottom_edge,get_blend_method());
+ surface->fill(color,pen,right-left,1);
+ }
+
+ if(right-1>=0 && right_edge)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(right-1,top),get_amount()*right_edge,get_blend_method());
+ surface->fill(color,pen,1,bottom-top);
+ }
+
+ if(left>=0 && left_edge)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left,top),get_amount()*left_edge,get_blend_method());
+ surface->fill(color,pen,1,bottom-top);
+ }
+
+ if(top>=0 && top_edge)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left,top),get_amount()*top_edge,get_blend_method());
+ surface->fill(color,pen,right-left,1);
+ }
+
+ return true;
+ }
+
+ // not inverted
+
+ int left(ceil_to_int((min[0]-tl[0])/pw));
+ int right(floor_to_int((max[0]-tl[0])/pw));
+ int top(ceil_to_int((min[1]-tl[1])/ph));
+ int bottom(floor_to_int((max[1]-tl[1])/ph));
+
+ float left_edge(float(left)-(min[0]-tl[0])/pw);
+ float right_edge((max[0]-tl[0])/pw-float(right));
+ float top_edge(float(top)-(min[1]-tl[1])/ph);
+ float bottom_edge((max[1]-tl[1])/ph-float(bottom));
+
+ if(top<=0)top=0,top_edge=0;
+ if(left<=0)left=0,left_edge=0;
+ if(bottom>=h)bottom=h,bottom_edge=0;
+ if(right>=w)right=w,right_edge=0;
+
+/*
+ top = std::max(0,top);
+ left = std::max(0,left);
+ bottom = std::min(h,bottom);
+ right = std::min(w,right);
+*/
+
+ // optimization - if the whole tile is covered by this rectangle,
+ // and the rectangle is a solid color, we don't need to render
+ // what's behind us
+ if (is_solid_color() && top == 0 && left == 0 && bottom == h && right == w)
+ {
+ surface->set_wh(w,h);
+ surface->fill(color);
+ return true;
+ }
+
+ // Render what is behind us
+ if(!context.accelerated_render(surface,quality,renddesc,cb))
+ {
+ if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+
+ // In the case where there is nothing to render...
+ if (right < left || bottom < top)
+ return true;
+
+ Surface::alpha_pen pen;
+
+ if(right-left>0&&bottom-top>0)
+ {
+ if(is_solid_color())
+ surface->fill(color,left,top,right-left,bottom-top);
+ else
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left,top),get_amount(),get_blend_method());
+ surface->fill(color,pen,right-left,bottom-top);
+ }
+ }
+
+ if(bottom<surface->get_h() && bottom_edge>=0.0001)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left,bottom),get_amount()*bottom_edge,get_blend_method());
+ surface->fill(color,pen,right-left,1);
+ }
+
+ if(right<surface->get_w() && right_edge>=0.0001)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(right,top),get_amount()*right_edge,get_blend_method());
+ surface->fill(color,pen,1,bottom-top);
+ }
+
+ if(left>0 && left_edge>=0.0001)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left-1,top),get_amount()*left_edge,get_blend_method());
+ surface->fill(color,pen,1,bottom-top);
+ }
+
+ if(top>0 && top_edge>=0.0001)
+ {
+ pen=Surface::alpha_pen(surface->get_pen(left,top-1),get_amount()*top_edge,get_blend_method());
+ surface->fill(color,pen,right-left,1);
+ }
+
+
+ return true;
+}
+
+Rect
+Rectangle::get_bounding_rect()const
+{
+ if(invert)
+ return Rect::full_plane();
+
+ Point max(point1),min(point2);
+ if((min[0] > max[0]))swap(min[0],max[0]);
+ if((min[1] > max[1]))swap(min[1],max[1]);
+ if(min[0] > max[0])
+ {
+ min[0]+=expand;
+ max[0]-=expand;
+ }
+ else
+ {
+ min[0]-=expand;
+ max[0]+=expand;
+ }
+
+ if(min[1] > max[1])
+ {
+ min[1]+=expand;
+ max[1]-=expand;
+ }
+ else
+ {
+ min[1]-=expand;
+ max[1]+=expand;
+ }
+
+ Rect bounds(min,max);
+
+ return bounds;
+}
+
+Rect
+Rectangle::get_full_bounding_rect(Context context)const
+{
+ if(invert)
+ {
+ if(is_solid_color() && color.get_a()==0)
+ {
+ Point max(point1),min(point2);
+ if((min[0] > max[0]))swap(min[0],max[0]);
+ if((min[1] > max[1]))swap(min[1],max[1]);
+ if(min[0] > max[0])
+ {
+ min[0]+=expand;
+ max[0]-=expand;
+ }
+ else
+ {
+ min[0]-=expand;
+ max[0]+=expand;
+ }
+
+ if(min[1] > max[1])
+ {
+ min[1]+=expand;
+ max[1]-=expand;
+ }
+ else
+ {
+ min[1]-=expand;
+ max[1]+=expand;
+ }
+
+ Rect bounds(min,max);
+
+ return bounds & context.get_full_bounding_rect();
+ }
+ return Rect::full_plane();
+ }
+
+ return Layer_Composite::get_full_bounding_rect(context);
+}
projects / synfig.git / blobdiff