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Diffstat (limited to 'kviewshell/plugins/djvu/libdjvu/GMapAreas.cpp')
| -rw-r--r-- | kviewshell/plugins/djvu/libdjvu/GMapAreas.cpp | 1066 |
1 files changed, 1066 insertions, 0 deletions
diff --git a/kviewshell/plugins/djvu/libdjvu/GMapAreas.cpp b/kviewshell/plugins/djvu/libdjvu/GMapAreas.cpp new file mode 100644 index 00000000..5a85e1fc --- /dev/null +++ b/kviewshell/plugins/djvu/libdjvu/GMapAreas.cpp @@ -0,0 +1,1066 @@ +//C- -*- C++ -*- +//C- ------------------------------------------------------------------- +//C- DjVuLibre-3.5 +//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun. +//C- Copyright (c) 2001 AT&T +//C- +//C- This software is subject to, and may be distributed under, the +//C- GNU General Public License, Version 2. The license should have +//C- accompanied the software or you may obtain a copy of the license +//C- from the Free Software Foundation at http://www.fsf.org . +//C- +//C- This program is distributed in the hope that it will be useful, +//C- but WITHOUT ANY WARRANTY; without even the implied warranty of +//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +//C- GNU General Public License for more details. +//C- +//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library +//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech +//C- Software authorized us to replace the original DjVu(r) Reference +//C- Library notice by the following text (see doc/lizard2002.djvu): +//C- +//C- ------------------------------------------------------------------ +//C- | DjVu (r) Reference Library (v. 3.5) +//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved. +//C- | The DjVu Reference Library is protected by U.S. Pat. No. +//C- | 6,058,214 and patents pending. +//C- | +//C- | This software is subject to, and may be distributed under, the +//C- | GNU General Public License, Version 2. The license should have +//C- | accompanied the software or you may obtain a copy of the license +//C- | from the Free Software Foundation at http://www.fsf.org . +//C- | +//C- | The computer code originally released by LizardTech under this +//C- | license and unmodified by other parties is deemed "the LIZARDTECH +//C- | ORIGINAL CODE." Subject to any third party intellectual property +//C- | claims, LizardTech grants recipient a worldwide, royalty-free, +//C- | non-exclusive license to make, use, sell, or otherwise dispose of +//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the +//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU +//C- | General Public License. This grant only confers the right to +//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to +//C- | the extent such infringement is reasonably necessary to enable +//C- | recipient to make, have made, practice, sell, or otherwise dispose +//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to +//C- | any greater extent that may be necessary to utilize further +//C- | modifications or combinations. +//C- | +//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY +//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED +//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF +//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. +//C- +------------------------------------------------------------------ +// +// $Id: GMapAreas.cpp,v 1.9 2004/05/05 15:12:42 leonb Exp $ +// $Name: release_3_5_15 $ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#if NEED_GNUG_PRAGMAS +# pragma implementation +#endif + +#include "GMapAreas.h" +#include "GException.h" +#include "debug.h" + +#include <math.h> +#include <stdio.h> + + +#ifdef HAVE_NAMESPACES +namespace DJVU { +# ifdef NOT_DEFINED // Just to fool emacs c++ mode +} +#endif +#endif + + +/**************************************************************************** +***************************** GMapArea definition *************************** +****************************************************************************/ + +const char GMapArea::MAPAREA_TAG[] = "maparea"; +const char GMapArea::RECT_TAG[] = "rect"; +const char GMapArea::POLY_TAG[] = "poly"; +const char GMapArea::OVAL_TAG[] = "oval"; +const char GMapArea::NO_BORDER_TAG[] = "none"; +const char GMapArea::XOR_BORDER_TAG[] = "xor"; +const char GMapArea::SOLID_BORDER_TAG[] = "border"; +const char GMapArea::SHADOW_IN_BORDER_TAG[] = "shadow_in"; +const char GMapArea::SHADOW_OUT_BORDER_TAG[] = "shadow_out"; +const char GMapArea::SHADOW_EIN_BORDER_TAG[] = "shadow_ein"; +const char GMapArea::SHADOW_EOUT_BORDER_TAG[] = "shadow_eout"; +const char GMapArea::BORDER_AVIS_TAG[] = "border_avis"; +const char GMapArea::HILITE_TAG[] = "hilite"; +const char GMapArea::URL_TAG[] = "url"; +const char GMapArea::TARGET_SELF[] = "_self"; +static const char zero_width[] = ERR_MSG("GMapAreas.zero_width"); +static const char zero_height[] = ERR_MSG("GMapAreas.zero_height"); +static const char width_1[] = ERR_MSG("GMapAreas.width_1"); +static const char width_3_32 [] = ERR_MSG("GMapAreas.width_3-32"); +static const char error_poly_border [] = ERR_MSG("GMapAreas.poly_border"); +static const char error_poly_hilite [] = ERR_MSG("GMapAreas.poly_hilite"); +static const char error_oval_border [] = ERR_MSG("GMapAreas.oval_border"); +static const char error_oval_hilite [] = ERR_MSG("GMapAreas.oval_hilite"); +static const char error_too_few_points [] = ERR_MSG("GMapAreas.too_few_points"); +static const char error_intersect [] = ERR_MSG("GMapAreas.intersect"); + +GMapArea::~GMapArea() {} + +GMapRect::~GMapRect() {} + +GMapPoly::~GMapPoly() {} + +GMapOval::~GMapOval() {} + +void +GMapArea::initialize_bounds(void) +{ + xmin=gma_get_xmin(); + xmax=gma_get_xmax(); + ymin=gma_get_ymin(); + ymax=gma_get_ymax(); + bounds_initialized=true; +} + +int +GMapArea::get_xmin(void) const +{ + if (!bounds_initialized) + const_cast<GMapArea *>(this)->initialize_bounds(); + return xmin; +} + +int +GMapArea::get_ymin(void) const +{ + if (!bounds_initialized) + const_cast<GMapArea *>(this)->initialize_bounds(); + return ymin; +} + +int +GMapArea::get_xmax(void) const +{ + if (!bounds_initialized) + const_cast<GMapArea *>(this)->initialize_bounds(); + return xmax; +} + +int +GMapArea::get_ymax(void) const +{ + if (!bounds_initialized) + const_cast<GMapArea *>(this)->initialize_bounds(); + return ymax; +} + +GRect +GMapArea::get_bound_rect(void) const +{ + return GRect(get_xmin(), get_ymin(), get_xmax()-get_xmin(), + get_ymax()-get_ymin()); +} + +void +GMapArea::move(int dx, int dy) +{ + if (dx || dy) + { + if (bounds_initialized) + { + xmin+=dx; + ymin+=dy; + xmax+=dx; + ymax+=dy; + } + gma_move(dx, dy); + } +} + +void +GMapArea::resize(int new_width, int new_height) +{ + if (get_xmax()-get_xmin()!=new_width || + get_ymax()-get_ymin()!=new_height) + { + gma_resize(new_width, new_height); + bounds_initialized=false; + } +} + +void +GMapArea::transform(const GRect & grect) +{ + if (grect.xmin!=get_xmin() || grect.ymin!=get_ymin() || + grect.xmax!=get_xmax() || grect.ymax!=get_ymax()) + { + gma_transform(grect); + bounds_initialized=false; + } +} + +char const * const +GMapArea::check_object(void) +{ + char const *retval; + if (get_xmax()==get_xmin()) + { + retval=zero_width; + } + else if (get_ymax()==get_ymin()) + { + retval=zero_height; + } + else if ((border_type==XOR_BORDER || + border_type==SOLID_BORDER) && border_width!=1) + { + retval=width_1; + } + else if ((border_type==SHADOW_IN_BORDER || + border_type==SHADOW_OUT_BORDER || + border_type==SHADOW_EIN_BORDER || + border_type==SHADOW_EOUT_BORDER)&& + (border_width<3 || border_width>32)) + { + retval=width_3_32; + }else + { + retval=gma_check_object(); + } + return retval; +} + +bool +GMapArea::is_point_inside(int x, int y) const +{ + if (!bounds_initialized) + const_cast<GMapArea *>(this)->initialize_bounds(); + return (x>=xmin && x<xmax && y>=ymin && y<ymax) ? + gma_is_point_inside(x, y) : false; +} + +GUTF8String +GMapArea::print(void) +{ + // Make this hard check to make sure, that *no* illegal GMapArea + // can be stored into a file. + const char * const errors=check_object(); + if (errors[0]) + { + G_THROW(errors); + } + + int i; + GUTF8String tmp; + GUTF8String url1, target1, comment1; + const GUTF8String url_str=url; + for(i=0;i<(int) url_str.length();i++) + { + char ch=url_str[i]; + if (ch=='"') + url1+='\\'; + url1+=ch; + } + for(i=0;i<(int) target.length();i++) + { + char ch=target[i]; + if (ch=='"') + target1+='\\'; + target1+=ch; + } + for(i=0;i<(int) comment.length();i++) + { + char ch=comment[i]; + if (ch=='"') + comment1+='\\'; + comment1+=ch; + } + + GUTF8String border_color_str; + border_color_str.format("#%02X%02X%02X", + (border_color & 0xff0000) >> 16, + (border_color & 0xff00) >> 8, + (border_color & 0xff)); + + static const GUTF8String left('('); + static const GUTF8String right(')'); + static const GUTF8String space(' '); + static const GUTF8String quote('"'); + GUTF8String border_type_str; + switch(border_type) + { + case NO_BORDER: + border_type_str=left+NO_BORDER_TAG+right; + break; + case XOR_BORDER: + border_type_str=left+XOR_BORDER_TAG+right; + break; + case SOLID_BORDER: + border_type_str=left+SOLID_BORDER_TAG+space+border_color_str+right; + break; + case SHADOW_IN_BORDER: + border_type_str=left+SHADOW_IN_BORDER_TAG+space+GUTF8String(border_width)+right; + break; + case SHADOW_OUT_BORDER: + border_type_str=left+SHADOW_OUT_BORDER_TAG+space+GUTF8String(border_width)+right; + break; + case SHADOW_EIN_BORDER: + border_type_str=left+SHADOW_EIN_BORDER_TAG+space+GUTF8String(border_width)+right; + break; + case SHADOW_EOUT_BORDER: + border_type_str=left+SHADOW_EOUT_BORDER_TAG+space+GUTF8String(border_width)+right; + break; + default: + border_type_str=left+XOR_BORDER_TAG+right; + break; + } + + GUTF8String hilite_str; + if (hilite_color!=0xffffffff) + { + hilite_str.format("(%s #%02X%02X%02X)", + HILITE_TAG, (hilite_color & 0xff0000) >> 16, + (hilite_color & 0xff00) >> 8, + (hilite_color & 0xff)); + } + + GUTF8String URL; + if (target1==TARGET_SELF) + { + URL=quote+url1+quote; + }else + { + URL=left+URL_TAG+space+quote+url1+quote+space+quote+target1+quote+right; + } + + GUTF8String total=left+MAPAREA_TAG+space+URL+space+quote+comment1+quote+space+gma_print()+border_type_str; + if (border_always_visible) + total+=space+left+BORDER_AVIS_TAG+right; + if ( hilite_str.length() > 0 ) + total+=space+hilite_str; + total+=right; + return total; +} + +/* +void +GMapArea::map(GRectMapper &mapper) +{ + get_bound_rect(); + GRect rect = GRect(xmin, ymin, xmax, ymax); + mapper.map(rect); + xmin = rect.xmin; + ymin = rect.ymin; + xmax = rect.xmax; + ymax = rect.ymax; + clear_bounds(); +} +void +GMapArea::unmap(GRectMapper &mapper) +{ + get_bound_rect(); + GRect rect = GRect(xmin, ymin, xmax, ymax); + mapper.unmap(rect); + xmin = rect.xmin; + ymin = rect.ymin; + xmax = rect.xmax; + ymax = rect.ymax; + clear_bounds(); +} +*/ + + +/// Virtual function generating a list of defining coordinates +/// (default are the opposite corners of the enclosing rectangle) +void GMapArea::get_coords( GList<int> & CoordList ) const +{ + CoordList.append( get_xmin() ); + CoordList.append( get_ymin() ); + CoordList.append( get_xmax() ); + CoordList.append( get_ymax() ); +} + + +/**************************************************************************** +**************************** GMapRect definition **************************** +****************************************************************************/ + +void +GMapRect::gma_resize(int new_width, int new_height) +{ + xmax=xmin+new_width; + ymax=ymin+new_height; +} + +void +GMapRect::gma_transform(const GRect & grect) +{ + xmin=grect.xmin; ymin=grect.ymin; + xmax=grect.xmax; ymax=grect.ymax; +} + +GUTF8String +GMapRect::gma_print(void) +{ + GUTF8String buffer; + return buffer.format("(%s %d %d %d %d) ", + RECT_TAG, xmin, ymin, xmax-xmin, ymax-ymin); +} + +void +GMapRect::map(GRectMapper &mapper) +{ + get_bound_rect(); + GRect rect; + rect.xmin = xmin; + rect.xmax = xmax; + rect.ymin = ymin; + rect.ymax = ymax; + mapper.map(rect); + xmin = rect.xmin; + ymin = rect.ymin; + xmax = rect.xmax; + ymax = rect.ymax; + clear_bounds(); +} +void +GMapRect::unmap(GRectMapper &mapper) +{ + get_bound_rect(); + GRect rect; + rect.xmin = xmin; + rect.xmax = xmax; + rect.ymin = ymin; + rect.ymax = ymax; + mapper.unmap(rect); + xmin = rect.xmin; + ymin = rect.ymin; + xmax = rect.xmax; + ymax = rect.ymax; + clear_bounds(); +} + +/**************************************************************************** +**************************** GMapPoly definition **************************** +****************************************************************************/ + +inline int +GMapPoly::sign(int x) { return x<0 ? -1 : x>0 ? 1 : 0; } + +bool +GMapPoly::does_side_cross_rect(const GRect & grect, int side) +{ + int x1=xx[side], x2=xx[(side+1)%points]; + int y1=yy[side], y2=yy[(side+1)%points]; + int xmin=x1<x2 ? x1 : x2; + int ymin=y1<y2 ? y1 : y2; + int xmax=x1+x2-xmin; + int ymax=y1+y2-ymin; + + if (xmax<grect.xmin || xmin>grect.xmax || + ymax<grect.ymin || ymin>grect.ymax) return false; + + return + x1>=grect.xmin && x1<=grect.xmax && y1>=grect.ymin && y1<=grect.ymax || + x2>=grect.xmin && x2<=grect.xmax && y2>=grect.ymin && y2<=grect.ymax || + do_segments_intersect(grect.xmin, grect.ymin, grect.xmax, grect.ymax, + x1, y1, x2, y2) || + do_segments_intersect(grect.xmax, grect.ymin, grect.xmin, grect.ymax, + x1, y1, x2, y2); +} + +bool +GMapPoly::is_projection_on_segment(int x, int y, int x1, int y1, int x2, int y2) +{ + int res1=(x-x1)*(x2-x1)+(y-y1)*(y2-y1); + int res2=(x-x2)*(x2-x1)+(y-y2)*(y2-y1); + return sign(res1)*sign(res2)<=0; +} + +bool +GMapPoly::do_segments_intersect(int x11, int y11, int x12, int y12, + int x21, int y21, int x22, int y22) +{ + int res11=(x11-x21)*(y22-y21)-(y11-y21)*(x22-x21); + int res12=(x12-x21)*(y22-y21)-(y12-y21)*(x22-x21); + int res21=(x21-x11)*(y12-y11)-(y21-y11)*(x12-x11); + int res22=(x22-x11)*(y12-y11)-(y22-y11)*(x12-x11); + if (!res11 && !res12) + { + // Segments are on the same line + return + is_projection_on_segment(x11, y11, x21, y21, x22, y22) || + is_projection_on_segment(x12, y12, x21, y21, x22, y22) || + is_projection_on_segment(x21, y21, x11, y11, x12, y12) || + is_projection_on_segment(x22, y22, x11, y11, x12, y12); + } + int sign1=sign(res11)*sign(res12); + int sign2=sign(res21)*sign(res22); + return sign1<=0 && sign2<=0; +} + +bool +GMapPoly::are_segments_parallel(int x11, int y11, int x12, int y12, + int x21, int y21, int x22, int y22) +{ + return (x12-x11)*(y22-y21)-(y12-y11)*(x22-x21)==0; +} + +char const * const +GMapPoly::check_data(void) +{ + if (open && points<2 || !open && points<3) + return error_too_few_points; + for(int i=0;i<sides;i++) + { + for(int j=i+2;j<sides;j++) + { + if (i != (j+1)%points ) + { + if (do_segments_intersect(xx[i], yy[i], xx[i+1], yy[i+1], + xx[j], yy[j], xx[(j+1)%points], yy[(j+1)%points])) + { + return error_intersect; + } + } + } + } + return ""; +} + +void +GMapPoly::optimize_data(void) +{ + // Removing segments of length zero + int i; + for(i=0;i<sides;i++) + { + while(xx[i]==xx[(i+1)%points] && yy[i]==yy[(i+1)%points]) + { + for(int k=(i+1)%points;k<points-1;k++) + { + xx[k]=xx[k+1]; yy[k]=yy[k+1]; + } + points--; sides--; + if (!points) return; + } + } + // Concatenating consequitive parallel segments + for(i=0;i<sides;i++) + { + while((open && i+1<sides || !open) && + are_segments_parallel(xx[i], yy[i], + xx[(i+1)%points], yy[(i+1)%points], + xx[(i+1)%points], yy[(i+1)%points], + xx[(i+2)%points], yy[(i+2)%points])) + { + for(int k=(i+1)%points;k<points-1;k++) + { + xx[k]=xx[k+1]; yy[k]=yy[k+1]; + } + points--; sides--; + if (!points) return; + } + } +} + +bool +GMapPoly::gma_is_point_inside(const int xin, const int yin) const +{ + if (open) + return false; + + int xfar=get_xmax()+(get_xmax()-get_xmin()); + + int intersections=0; + for(int i=0;i<points;i++) + { + int res1=yy[i]-yin; + if (!res1) continue; + int res2, isaved=i; + while(!(res2=yy[(i+1)%points]-yin)) i++; + if (isaved!=i) + { + // Some points fell exactly on the line + if ((xx[(isaved+1)%points]-xin)* + (xx[i%points]-xin)<=0) + { + // Test point is exactly on the boundary + return true; + } + } + if (res1<0 && res2>0 || res1>0 && res2<0) + { + int x1=xx[i%points], y1=yy[i%points]; + int x2=xx[(i+1)%points], y2=yy[(i+1)%points]; + int _res1=(xin-x1)*(y2-y1)-(yin-y1)*(x2-x1); + int _res2=(xfar-x1)*(y2-y1)-(yin-y1)*(x2-x1); + if (!_res1 || !_res2) + { + // The point is on this boundary + return true; + } + if (sign(_res1)*sign(_res2)<0) intersections++; + } + } + return (intersections % 2)!=0; +} + +int +GMapPoly::gma_get_xmin(void) const +{ + int x=xx[0]; + for(int i=1;i<points;i++) + if (x>xx[i]) x=xx[i]; + return x; +} + +int +GMapPoly::gma_get_xmax(void) const +{ + int x=xx[0]; + for(int i=1;i<points;i++) + if (x<xx[i]) x=xx[i]; + return x+1; +} + +int +GMapPoly::gma_get_ymin(void) const +{ + int y=yy[0]; + for(int i=1;i<points;i++) + if (y>yy[i]) y=yy[i]; + return y; +} + +int +GMapPoly::gma_get_ymax(void) const +{ + int y=yy[0]; + for(int i=1;i<points;i++) + if (y<yy[i]) y=yy[i]; + return y+1; +} + +void +GMapPoly::gma_move(int dx, int dy) +{ + for(int i=0;i<points;i++) + { + xx[i]+=dx; yy[i]+=dy; + } +} + +void +GMapPoly::gma_resize(int new_width, int new_height) +{ + int width=get_xmax()-get_xmin(); + int height=get_ymax()-get_ymin(); + int xmin=get_xmin(), ymin=get_ymin(); + for(int i=0;i<points;i++) + { + xx[i]=xmin+(xx[i]-xmin)*new_width/width; + yy[i]=ymin+(yy[i]-ymin)*new_height/height; + } +} + +void +GMapPoly::gma_transform(const GRect & grect) +{ + int width=get_xmax()-get_xmin(); + int height=get_ymax()-get_ymin(); + int xmin=get_xmin(), ymin=get_ymin(); + for(int i=0;i<points;i++) + { + xx[i]=grect.xmin+(xx[i]-xmin)*grect.width()/width; + yy[i]=grect.ymin+(yy[i]-ymin)*grect.height()/height; + } +} + +char const * const +GMapPoly::gma_check_object(void) const +{ + const char * str; + str=(border_type!=NO_BORDER && + border_type!=SOLID_BORDER && + border_type!=XOR_BORDER) ? error_poly_border: + ((hilite_color!=0xffffffff) ? error_poly_hilite:""); + return str; +} + +GMapPoly::GMapPoly(const int * _xx, const int * _yy, int _points, bool _open) : + open(_open), points(_points) +{ + sides=points-(open!=0); + + xx.resize(points-1); yy.resize(points-1); + for(int i=0;i<points;i++) + { + xx[i]=_xx[i]; yy[i]=_yy[i]; + } + optimize_data(); + char const * const res=check_data(); + if (res[0]) + G_THROW(res); +} + +int +GMapPoly::add_vertex(int x, int y) +{ + points++; + sides=points-(open!=0); + + xx.resize(points-1); yy.resize(points-1); + xx[points-1] = x; + yy[points-1] = y; + + return points; +} + +void +GMapPoly::close_poly() +{ + open = false; + sides=points; +} + +GUTF8String +GMapPoly::gma_print(void) +{ + static const GUTF8String space(' '); + GUTF8String res=GUTF8String('(')+POLY_TAG+space; + for(int i=0;i<points;i++) + { + GUTF8String buffer; + res+=buffer.format("%d %d ", xx[i], yy[i]); + } + res.setat(res.length()-1, ')'); + res+=space; + return res; +} + +/// Virtual function generating a list of defining coordinates +void GMapPoly::get_coords( GList<int> & CoordList ) const +{ + for(int i = 0 ; i < points ; i++) + { + CoordList.append( xx[i] ); + CoordList.append( yy[i] ); + } +} + +void +GMapPoly::map(GRectMapper &mapper) +{ + get_bound_rect(); + for(int i=0; i<points; i++) + { + mapper.map(xx[i], yy[i]); + } + clear_bounds(); +} + +void +GMapPoly::unmap(GRectMapper &mapper) +{ + get_bound_rect(); + for(int i=0; i<points; i++) + { + mapper.unmap(xx[i], yy[i]); + } + clear_bounds(); +} + + + +/**************************************************************************** +**************************** GMapOval definition **************************** +****************************************************************************/ + +void +GMapOval::gma_resize(int new_width, int new_height) +{ + xmax=xmin+new_width; + ymax=ymin+new_height; + initialize(); +} + +void +GMapOval::gma_transform(const GRect & grect) +{ + xmin=grect.xmin; ymin=grect.ymin; + xmax=grect.xmax; ymax=grect.ymax; + initialize(); +} + +bool +GMapOval::gma_is_point_inside(const int x, const int y) const +{ + return + sqrt((double)((x-xf1)*(x-xf1)+(y-yf1)*(y-yf1))) + + sqrt((double)((x-xf2)*(x-xf2)+(y-yf2)*(y-yf2))) <= 2*rmax; +} + +char const * const +GMapOval::gma_check_object(void) const +{ + return (border_type!=NO_BORDER && + border_type!=SOLID_BORDER && + border_type!=XOR_BORDER)?error_oval_border: + ((hilite_color!=0xffffffff) ? error_oval_hilite:""); +} + +void +GMapOval::initialize(void) +{ + int xc=(xmax+xmin)/2; + int yc=(ymax+ymin)/2; + int f; + + a=(xmax-xmin)/2; + b=(ymax-ymin)/2; + if (a>b) + { + rmin=b; rmax=a; + f=(int) sqrt((double)(rmax*rmax-rmin*rmin)); + xf1=xc+f; xf2=xc-f; yf1=yf2=yc; + } else + { + rmin=a; rmax=b; + f=(int) sqrt((double)(rmax*rmax-rmin*rmin)); + yf1=yc+f; yf2=yc-f; xf1=xf2=xc; + } +} + +GMapOval::GMapOval(const GRect & rect) : xmin(rect.xmin), ymin(rect.ymin), + xmax(rect.xmax), ymax(rect.ymax) +{ + initialize(); +} + +GUTF8String +GMapOval::gma_print(void) +{ + GUTF8String buffer; + return buffer.format("(%s %d %d %d %d) ", + OVAL_TAG, xmin, ymin, xmax-xmin, ymax-ymin); +} + +void +GMapOval::map(GRectMapper &mapper) +{ + get_bound_rect(); + GRect rect; + rect.xmin = xmin; + rect.xmax = xmax; + rect.ymin = ymin; + rect.ymax = ymax; + mapper.map(rect); + xmin = rect.xmin; + ymin = rect.ymin; + xmax = rect.xmax; + ymax = rect.ymax; + clear_bounds(); + initialize(); +} + +void +GMapOval::unmap(GRectMapper &mapper) +{ + get_bound_rect(); + GRect rect; + rect.xmin = xmin; + rect.xmax = xmax; + rect.ymin = ymin; + rect.ymax = ymax; + mapper.unmap(rect); + xmin = rect.xmin; + ymin = rect.ymin; + xmax = rect.xmax; + ymax = rect.ymax; + clear_bounds(); + initialize(); +} + +GMapArea::GMapArea(void) : target("_self"), border_type(NO_BORDER), + border_always_visible(false), border_color(0xff), border_width(1), + hilite_color(0xffffffff), bounds_initialized(0) {} + +GMapRect::GMapRect(void) : xmin(0), ymin(0), xmax(0), ymax(0) {} + +GMapRect::GMapRect(const GRect & rect) : xmin(rect.xmin), ymin(rect.ymin), + xmax(rect.xmax), ymax(rect.ymax) {} + +GMapRect & +GMapRect::operator=(const GRect & rect) +{ + xmin=rect.xmin; + xmax=rect.xmax; + ymin=rect.ymin; + ymax=rect.ymax; + return *this; +} + +void +GMapRect::gma_move(int dx, int dy) +{ + xmin+=dx; + xmax+=dx; + ymin+=dy; + ymax+=dy; +} + +bool +GMapRect::gma_is_point_inside(const int x, const int y) const +{ + return (x>=xmin)&&(x<xmax)&&(y>=ymin)&&(y<ymax); +} + +GP<GMapArea> +GMapRect::get_copy(void) const { return new GMapRect(*this); } + +GMapPoly::GMapPoly(void) : points(0), sides(0) {} + +void +GMapPoly::move_vertex(int i, int x, int y) +{ + xx[i]=x; yy[i]=y; + clear_bounds(); +} + +GP<GMapArea> +GMapPoly::get_copy(void) const { return new GMapPoly(*this); } + +GMapOval::GMapOval(void) : xmin(0), ymin(0), xmax(0), ymax(0) {} + +void +GMapOval::gma_move(int dx, int dy) +{ + xmin+=dx; xmax+=dx; ymin+=dy; ymax+=dy; + xf1+=dx; yf1+=dy; xf2+=dx; yf2+=dy; +} + +GP<GMapArea> +GMapOval::get_copy(void) const +{ + return new GMapOval(*this); +} + +static GUTF8String +GMapArea2xmltag(const GMapArea &area,const GUTF8String &coords) +{ + GUTF8String retval("<AREA coords=\"" + +coords+"\" shape=\""+area.get_shape_name()+"\" " + +"alt=\""+area.comment.toEscaped()+"\" "); + if(area.url.length()) + { + retval+="href=\""+area.url+"\" "; + }else + { + retval+="nohref=\"nohref\" "; + } + if(area.target.length()) + { + retval+="target=\""+area.target.toEscaped()+"\" "; + } + // highlight + if( area.hilite_color != GMapArea::NO_HILITE && + area.hilite_color != GMapArea::XOR_HILITE ) + { + retval+=GUTF8String().format( "highlight=\"#%06X\" ", area.hilite_color ); + } + const char *b_type="none"; + switch( area.border_type ) + { + case GMapArea::NO_BORDER: + b_type = "none"; + break; + case GMapArea::XOR_BORDER: + b_type = "xor"; + break; + case GMapArea::SOLID_BORDER: + b_type = "solid"; + break; + case GMapArea::SHADOW_IN_BORDER: + b_type = "shadowin"; + break; + case GMapArea::SHADOW_OUT_BORDER: + b_type = "shadowout"; + break; + case GMapArea::SHADOW_EIN_BORDER: + b_type = "etchedin"; + break; + case GMapArea::SHADOW_EOUT_BORDER: + b_type = "etchedout"; + break; + } + retval=retval+"bordertype=\""+b_type+"\" "; + if( area.border_type != GMapArea::NO_BORDER) + { + retval+="bordercolor=\""+GUTF8String().format("#%06X",area.border_color) + +"\" border=\""+GUTF8String(area.border_width)+"\" "; + } + if(area.border_always_visible ) + retval=retval+"visible=\"visible\" "; + return retval+"/>\n"; +} + +GUTF8String +GMapRect::get_xmltag(const int height) const +{ + return GMapArea2xmltag( *this, GUTF8String(get_xmin()) + +","+GUTF8String(height-1-get_ymax()) + +","+GUTF8String(get_xmax()) + +","+GUTF8String(height-1-get_ymin())); +#if 0 + GUTF8String retval; + return retval; +#endif +} + +GUTF8String +GMapOval::get_xmltag(const int height) const +{ + return GMapArea2xmltag( *this, GUTF8String(get_xmin()) + +","+GUTF8String(height-1-get_ymax()) + +","+GUTF8String(get_xmax()) + +","+GUTF8String(height-1-get_ymin())); +#if 0 + GUTF8String retval; + return retval; +#endif +} + +GUTF8String +GMapPoly::get_xmltag(const int height) const +{ + GList<int> CoordList; + get_coords(CoordList); + GPosition pos=CoordList; + GUTF8String retval; + if(pos) + { + GUTF8String coords(CoordList[pos]); + while(++pos) + { + coords+=","+GUTF8String(height-1-CoordList[pos]); + if(! ++pos) + break; + coords+=","+GUTF8String(CoordList[pos]); + } + retval=GMapArea2xmltag( *this, coords); + } + return retval; +} + + +#ifdef HAVE_NAMESPACES +} +# ifndef NOT_USING_DJVU_NAMESPACE +using namespace DJVU; +# endif +#endif + |