Rev 1024 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 10 | reyssat | 1 | /* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis |
| 2 | * |
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| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 16 | */ |
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| 17 | |||
| 18 | #include <errno.h> |
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| 19 | |||
| 20 | /* File opening: with security */ |
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| 21 | FILE *open4read(char *n) |
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| 22 | { |
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| 23 | char *p, *p1, *p2, namebuf[2048]; |
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| 24 | int t; |
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| 25 | FILE *f; |
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| 26 | n=find_word_start(n); |
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| 27 | if(*n==0) return NULL; |
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| 28 | p=getenv("flydraw_filebase"); |
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| 29 | p1=n+strlen(n)-4;if(p1<n || strcasecmp(p1,".gif")!=0) t=1; else t=0; |
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| 30 | if(p!=NULL && *p!=0) { |
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| 31 | char pbuf[MAX_LINELEN+1]; |
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| 32 | snprintf(pbuf,sizeof(pbuf),"%s",p); |
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| 33 | p=find_word_start(pbuf); if(strstr(p,"..")!=NULL) return NULL; |
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| 34 | if(*n=='/' || strstr(n,"..")!=NULL) return NULL; |
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| 35 | /* prohibit unusual file/dir names */ |
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| 36 | for(p1=p;*p1;p1++) |
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| 37 | if(!isalnum(*p1) && !isspace(*p1) && strchr("~_-/.",*p1)==NULL) |
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| 38 | return NULL; |
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| 39 | for(p1=n;*p1;p1++) |
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| 40 | if(!isalnum(*p1) && !isspace(*p1) && strchr("~_-/.",*p1)==NULL) |
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| 41 | return NULL; |
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| 42 | f=NULL; |
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| 43 | for(p1=p; *p1; p1=find_word_start(p2)) { |
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| 44 | p2=find_word_end(p1); |
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| 45 | if(*p2) *p2++=0; |
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| 46 | snprintf(namebuf,sizeof(namebuf),"%s/%s",p1,n); |
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| 47 | f=fopen(namebuf,"r"); if(f!=NULL) goto imgtype; |
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| 48 | } |
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| 49 | p1=getenv("w_wims_session"); |
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| 50 | if(p1!=NULL && strncmp(n,"insert",6)==0) { |
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| 51 | snprintf(namebuf,sizeof(namebuf),"../s2/%s/%s",p1,n); |
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| 52 | f=fopen(namebuf,"r"); |
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| 53 | } |
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| 54 | } |
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| 55 | else { |
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| 56 | snprintf(namebuf,sizeof(namebuf),"%s",n); |
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| 57 | f=fopen(namebuf,"r"); |
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| 58 | } |
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| 59 | imgtype: |
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| 60 | if(t && f!=NULL) { |
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| 61 | char tbuf[1024],sbuf[4096]; |
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| 62 | fclose(f); f=NULL; |
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| 63 | p1=getenv("TMPDIR"); if(p1==NULL || *p1==0) p1="."; |
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| 64 | snprintf(tbuf,sizeof(tbuf),"%s/drawfile_.gif",p1); |
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| 65 | snprintf(sbuf,sizeof(sbuf),"convert %s %s",namebuf,tbuf); |
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| 66 | system(sbuf); f=fopen(tbuf,"r"); |
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| 67 | } |
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| 68 | return f; |
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| 69 | } |
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| 70 | |||
| 71 | /* Does nothing; just a comment. */ |
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| 72 | void obj_comment(objparm *pm) |
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| 73 | { |
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| 74 | return; |
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| 75 | } |
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| 76 | |||
| 77 | /* define image size */ |
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| 78 | void obj_size(objparm *pm) |
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| 79 | { |
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| 80 | sizex=rint(pm->pd[0]); sizey=rint(pm->pd[1]); |
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| 81 | if(sizex<0 || sizey<0 || sizex>MAX_SIZE || sizey>MAX_SIZE) { |
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| 82 | error("bad_size"); return; |
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| 83 | } |
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| 84 | if(image!=NULL) { |
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| 85 | error("size_already_defined"); return; |
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| 86 | } |
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| 87 | image=gdImageCreate(sizex,sizey); |
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| 88 | if(image==NULL) error("image_creation_failure"); |
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| 89 | else { |
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| 90 | color_white=gdImageColorAllocate(image,255,255,255); |
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| 91 | color_black=gdImageColorAllocate(image,0,0,0); |
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| 92 | color_bounder=gdImageColorAllocate(image,1,2,3); |
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| 93 | } |
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| 94 | } |
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| 95 | |||
| 96 | /* new image */ |
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| 97 | void obj_new(objparm *pm) |
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| 98 | { |
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| 99 | if(image) { |
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| 100 | gdImageDestroy(image);image=NULL; |
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| 101 | } |
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| 102 | if(pm->pcnt>=2) obj_size(pm); |
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| 103 | else sizex=sizey=0; |
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| 104 | saved=0; |
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| 105 | } |
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| 106 | |||
| 107 | /* new image */ |
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| 108 | void obj_existing(objparm *pm) |
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| 109 | { |
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| 110 | FILE *inf; |
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| 111 | char *pp; |
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| 112 | |||
| 113 | if(image) { |
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| 114 | gdImageDestroy(image);image=NULL; |
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| 115 | } |
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| 116 | pp=find_word_start(pm->str);*find_word_end(pp)=0; |
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| 117 | inf=open4read(pp); |
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| 118 | if(inf==NULL) { |
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| 119 | error("file_not_exist"); return; |
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| 120 | } |
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| 121 | image=gdImageCreateFromGif(inf); fclose(inf); |
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| 122 | if(image==NULL) { |
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| 123 | error("bad_gif"); return; |
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| 124 | } |
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| 125 | sizex=image->sx; sizey=image->sy; |
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| 126 | saved=0; |
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| 127 | } |
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| 128 | |||
| 129 | /* solid line */ |
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| 130 | void obj_line(objparm *pm) |
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| 131 | { |
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| 132 | scale(pm->pd,pm->p,2); |
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| 133 | gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]); |
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| 134 | } |
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| 135 | |||
| 136 | /* Arrow */ |
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| 137 | void obj_arrow(objparm *pm) |
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| 138 | { |
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| 139 | int l,ii[6],xx,yy; |
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| 140 | double dx,dy,length,dd[6]; |
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| 141 | scale(pm->pd,pm->p,2); |
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| 142 | xx=ii[0]=pm->p[2];yy=ii[1]=pm->p[3]; |
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| 143 | l=pm->pd[4];if(l<0) l=0; if(l>200) l=200; |
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| 144 | scale2(pm->pd[0]-pm->pd[2],pm->pd[1]-pm->pd[3],&dx,&dy); |
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| 145 | length=sqrt(dx*dx+dy*dy); |
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| 146 | if(length<3 || l<5) goto stem; |
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| 147 | dd[0]=l*dx/length; dd[1]=l*dy/length; |
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| 148 | #define fat 0.27 |
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| 149 | dd[2]=dd[0]+dd[1]*fat; dd[3]=dd[1]-dd[0]*fat; |
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| 150 | dd[4]=dd[0]-dd[1]*fat; dd[5]=dd[1]+dd[0]*fat; |
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| 151 | ii[2]=rint(dd[2])+ii[0]; ii[3]=rint(dd[3])+ii[1]; |
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| 152 | ii[4]=rint(dd[4])+ii[0]; ii[5]=rint(dd[5])+ii[1]; |
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| 153 | gdImageFilledPolygon(image,(gdPointPtr) ii,3,pm->color[0]); |
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| 154 | xx=rint(dd[0])+ii[0];yy=rint(dd[1])+ii[1]; |
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| 155 | stem: if(pm->fill) |
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| 156 | gdImageDashedLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]); |
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| 157 | else |
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| 158 | gdImageLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]); |
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| 159 | |||
| 160 | } |
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| 161 | |||
| 162 | /* horizontal line */ |
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| 163 | void obj_hline(objparm *pm) |
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| 164 | { |
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| 165 | scale(pm->pd,pm->p,1); |
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| 166 | if(pm->fill) |
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| 167 | gdImageDashedLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]); |
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| 168 | else |
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| 169 | gdImageLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]); |
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| 170 | } |
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| 171 | |||
| 172 | /* vertical line */ |
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| 173 | void obj_vline(objparm *pm) |
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| 174 | { |
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| 175 | scale(pm->pd,pm->p,1); |
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| 176 | if(pm->fill) |
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| 177 | gdImageDashedLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]); |
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| 178 | else |
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| 179 | gdImageLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]); |
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| 180 | } |
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| 181 | |||
| 182 | /* dashed line */ |
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| 183 | void obj_dline(objparm *pm) |
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| 184 | { |
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| 185 | scale(pm->pd,pm->p,2); |
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| 186 | gdImageDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], |
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| 187 | pm->color[0]); |
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| 188 | } |
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| 189 | |||
| 190 | /* parallel lines. |
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| 191 | * x1,y1,x2,y2,xv,yv,n,color */ |
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| 192 | void obj_parallel(objparm *pm) |
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| 193 | { |
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| 194 | int i, n, xi,yi; |
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| 195 | double xv,yv; |
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| 196 | n=pm->pd[6]; if(n<0) return; if(n>256) n=256; |
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| 197 | scale(pm->pd,pm->p,2); |
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| 198 | scale2(pm->pd[4],pm->pd[5],&xv,&yv); |
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| 199 | for(i=0;i<n;i++) { |
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| 200 | xi=rint(i*xv); yi=rint(i*yv); |
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| 201 | gdImageLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi, |
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| 202 | pm->color[0]); |
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| 203 | } |
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| 204 | } |
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| 205 | |||
| 206 | /* rectangle */ |
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| 207 | void obj_rect(objparm *pm) |
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| 208 | { |
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| 209 | int x1,y1,x2,y2; |
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| 210 | scale(pm->pd,pm->p,2); |
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| 211 | x1=min(pm->p[0],pm->p[2]); x2=max(pm->p[0],pm->p[2]); |
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| 212 | y1=min(pm->p[1],pm->p[3]); y2=max(pm->p[1],pm->p[3]); |
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| 213 | if(pm->fill) |
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| 214 | gdImageFilledRectangle(image,x1,y1,x2,y2,pm->color[0]); |
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| 215 | else |
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| 216 | gdImageRectangle(image,x1,y1,x2,y2,pm->color[0]); |
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| 217 | } |
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| 218 | |||
| 219 | /* square */ |
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| 220 | void obj_square(objparm *pm) |
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| 221 | { |
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| 222 | int w,h; |
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| 223 | scale(pm->pd,pm->p,1); |
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| 224 | w=rint(pm->pd[2]); h=rint(pm->pd[2]); |
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| 225 | if(pm->fill) |
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| 226 | gdImageFilledRectangle(image,pm->p[0],pm->p[1], |
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| 227 | pm->p[0]+w,pm->p[1]+h,pm->color[0]); |
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| 228 | else |
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| 229 | gdImageRectangle(image,pm->p[0],pm->p[1], |
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| 230 | pm->p[0]+w,pm->p[1]+h,pm->color[0]); |
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| 231 | } |
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| 232 | |||
| 233 | /* triangle */ |
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| 234 | void obj_triangle(objparm *pm) |
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| 235 | { |
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| 236 | scale(pm->pd,pm->p,3); |
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| 237 | if(pm->fill) |
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| 238 | gdImageFilledPolygon(image,(gdPointPtr) pm->p,3,pm->color[0]); |
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| 239 | else |
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| 240 | gdImagePolygon(image,(gdPointPtr) pm->p,3,pm->color[0]); |
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| 241 | } |
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| 242 | |||
| 243 | /* polygon */ |
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| 244 | void obj_poly(objparm *pm) |
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| 245 | { |
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| 246 | int cnt; |
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| 247 | cnt=(pm->pcnt)/2; |
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| 248 | scale(pm->pd,pm->p,cnt); |
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| 249 | if(pm->fill) |
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| 250 | gdImageFilledPolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]); |
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| 251 | else |
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| 252 | gdImagePolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]); |
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| 253 | } |
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| 254 | |||
| 255 | /* rays */ |
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| 256 | void obj_rays(objparm *pm) |
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| 257 | { |
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| 258 | int i, n; |
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| 259 | n=(pm->pcnt)/2; |
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| 260 | scale(pm->pd,pm->p,n); |
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| 261 | for(i=2;i<2*n;i+=2) |
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| 262 | gdImageLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]); |
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| 263 | } |
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| 264 | |||
| 265 | /* segments */ |
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| 266 | void obj_lines(objparm *pm) |
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| 267 | { |
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| 268 | int i, n; |
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| 269 | n=(pm->pcnt)/2; |
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| 270 | scale(pm->pd,pm->p,n); |
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| 271 | for(i=2;i<2*n;i+=2) |
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| 272 | gdImageLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]); |
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| 273 | } |
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| 274 | |||
| 275 | /* segments */ |
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| 276 | void obj_dlines(objparm *pm) |
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| 277 | { |
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| 278 | int i, n; |
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| 279 | n=(pm->pcnt)/2; |
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| 280 | scale(pm->pd,pm->p,n); |
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| 281 | for(i=2;i<2*n;i+=2) |
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| 282 | gdImageDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]); |
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| 283 | } |
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| 284 | |||
| 285 | /* points */ |
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| 286 | void obj_points(objparm *pm) |
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| 287 | { |
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| 288 | int i, n; |
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| 289 | n=(pm->pcnt)/2; |
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| 290 | scale(pm->pd,pm->p,n); |
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| 291 | for(i=0;i<2*n;i+=2) |
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| 292 | gdImageSetPixel(image,pm->p[i],pm->p[i+1],pm->color[0]); |
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| 293 | } |
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| 294 | |||
| 295 | /* lattice. |
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| 296 | * x0,y0,xv1,yv1,xv2,yv2,n1,n2,color */ |
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| 297 | void obj_lattice(objparm *pm) |
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| 298 | { |
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| 299 | int n1,n2,i1,i2,xi1,yi1,xi2,yi2; |
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| 300 | double xv1,xv2,yv1,yv2; |
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| 301 | n1=pm->pd[6];n2=pm->pd[7]; if(n1<0 || n2<0) return; |
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| 302 | if(n1>256) n1=256; if(n2>256) n2=256; |
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| 303 | scale(pm->pd,pm->p,1); |
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| 304 | scale2(pm->pd[2],pm->pd[3],&xv1,&yv1); |
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| 305 | scale2(pm->pd[4],pm->pd[5],&xv2,&yv2); |
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| 306 | for(i1=0;i1<n1;i1++) { |
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| 307 | xi1=rint(i1*xv1)+pm->p[0]; yi1=rint(i1*yv1)+pm->p[1]; |
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| 308 | for(i2=0;i2<n2;i2++) { |
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| 309 | xi2=i2*xv2+xi1;yi2=i2*yv2+yi1; |
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| 310 | gdImageSetPixel(image,xi2,yi2,pm->color[0]); |
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| 311 | } |
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| 312 | } |
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| 313 | } |
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| 314 | |||
| 315 | /* arc */ |
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| 316 | void obj_arc(objparm *pm) |
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| 317 | { |
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| 318 | scale(pm->pd,pm->p,1); |
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| 319 | pm->p[2]=rint(pm->pd[2]*xscale); pm->p[3]=rint(pm->pd[3]*yscale); |
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| 320 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], |
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| 321 | pm->pd[4],pm->pd[5],pm->color[0]); |
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| 322 | } |
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| 323 | |||
| 324 | /* Ellipse: centre 0,1, width 2, hight 3, color 4,5,6 */ |
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| 325 | void obj_ellipse(objparm *pm) |
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| 326 | { |
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| 327 | scale(pm->pd,pm->p,1); |
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| 328 | pm->p[2]=rint(pm->pd[2]*xscale); pm->p[3]=rint(pm->pd[3]*yscale); |
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| 329 | if(pm->fill) { |
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| 330 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360, |
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| 331 | color_bounder); |
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| 332 | gdImageFillToBorder(image,pm->p[0],pm->p[1], |
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| 333 | color_bounder,pm->color[0]); |
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| 334 | } |
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| 335 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]); |
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| 336 | } |
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| 337 | |||
| 338 | /* Circle */ |
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| 339 | void obj_circle(objparm *pm) |
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| 340 | { |
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| 341 | scale(pm->pd,pm->p,1); |
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| 342 | pm->p[2]=rint(pm->pd[2]); pm->p[3]=rint(pm->pd[2]); |
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| 343 | if(pm->fill) { |
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| 344 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360, |
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| 345 | color_bounder); |
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| 346 | gdImageFillToBorder(image,pm->p[0],pm->p[1], |
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| 347 | color_bounder,pm->color[0]); |
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| 348 | } |
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| 349 | gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]); |
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| 350 | } |
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| 351 | |||
| 352 | /* flood fill */ |
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| 353 | void obj_fill(objparm *pm) |
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| 354 | { |
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| 355 | scale(pm->pd,pm->p,1); |
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| 356 | gdImageFill(image,pm->p[0],pm->p[1],pm->color[0]); |
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| 357 | } |
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| 358 | |||
| 359 | /* flood fill to border*/ |
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| 360 | void obj_fillb(objparm *pm) |
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| 361 | { |
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| 362 | scale(pm->pd,pm->p,1); |
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| 363 | gdImageFillToBorder(image,pm->p[0],pm->p[1],pm->color[0],pm->color[1]); |
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| 364 | } |
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| 365 | |||
| 366 | gdImagePtr himg; |
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| 367 | |||
| 368 | int makehatchimage(int x, int y, int px, int py, int col) |
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| 369 | { |
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| 370 | int c1,c2,r,g,b; |
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| 371 | gdImagePtr saveimg; |
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| 372 | himg=gdImageCreate(x,y); |
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| 373 | c1=gdImageGetPixel(image,px,py); |
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| 374 | r=gdImageRed(image,c1); g=gdImageGreen(image,c1); b=gdImageBlue(image,c1); |
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| 375 | if(r>=255) r--; else r++; if(g>=255) g--; else g++; if(b>=255) b--; else b++; |
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| 376 | c1=gdImageColorAllocate(himg,r,g,b); |
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| 377 | r=gdImageRed(image,col); g=gdImageGreen(image,col); b=gdImageBlue(image,col); |
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| 378 | c2=gdImageColorAllocate(himg,r,g,b); |
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| 379 | if(width>1) { |
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| 380 | savew=-1; saveimg=image; |
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| 381 | image=himg; c2=widthcolor(width,c2); image=saveimg; |
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| 382 | c2=gdBrushed; savew=-1; |
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| 383 | } |
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| 384 | return c2; |
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| 385 | } |
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| 386 | |||
| 387 | /* flood fill with hatching */ |
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| 388 | void obj_hatchfill(objparm *pm) |
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| 389 | { |
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| 390 | int nx,ny,ax,ay, dir, c; |
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| 391 | scale(pm->pd,pm->p,1); |
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| 392 | nx=pm->pd[2]; ny=pm->pd[3]; ax=abs(nx); ay=abs(ny); |
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| 393 | if(nx==0 && ny==0) {error("bad displacement vector"); return;} |
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| 394 | if((nx>0 && ny>0) || (nx<0 && ny<0)) dir=1; else dir=-1; |
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| 395 | if(ax==0) {ax=100; dir=2;} |
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| 396 | if(ay==0) {ay=100; dir=3;} |
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| 397 | c=makehatchimage(ax,ay,pm->p[0],pm->p[1],pm->color[0]); |
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| 398 | switch(dir) { |
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| 399 | case -1: { |
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| 400 | gdImageLine(himg,0,ay-1,ax-1,0,c); |
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| 401 | if(width>1) { |
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| 402 | gdImageLine(himg,-ax,ay-1,-1,0,c); |
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| 403 | gdImageLine(himg,ax,ay-1,2*ax-1,0,c); |
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| 404 | gdImageLine(himg,0,-1,ax-1,-ay,c); |
||
| 405 | gdImageLine(himg,0,2*ay-1,ax-1,ay,c); |
||
| 406 | } |
||
| 407 | break; |
||
| 408 | } |
||
| 409 | case 1: { |
||
| 410 | gdImageLine(himg,0,0,ax-1,ay-1,c); |
||
| 411 | if(width>1) { |
||
| 412 | gdImageLine(himg,-ax,0,-1,ay-1,c); |
||
| 413 | gdImageLine(himg,ax,0,2*ax-1,ay-1,c); |
||
| 414 | gdImageLine(himg,0,-ay,ax-1,-1,c); |
||
| 415 | gdImageLine(himg,0,ay,ax-1,2*ay-1,c); |
||
| 416 | } |
||
| 417 | break; |
||
| 418 | } |
||
| 419 | case 2: gdImageLine(himg,0,ay/2,ax-1,ay/2,c); break; |
||
| 420 | case 3: gdImageLine(himg,ax/2,0,ax/2,ay-1,c); break; |
||
| 421 | } |
||
| 422 | gdImageSetTile(image,himg); |
||
| 423 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
| 424 | gdImageDestroy(himg); |
||
| 425 | if(tiled) gdImageSetTile(image,tileimg); |
||
| 426 | } |
||
| 427 | |||
| 428 | /* flood fill with grid */ |
||
| 429 | void obj_gridfill(objparm *pm) |
||
| 430 | { |
||
| 431 | int nx,ny, c; |
||
| 432 | scale(pm->pd,pm->p,1); |
||
| 433 | nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny); |
||
| 434 | if(nx==0 && ny==0) {error("bad grid size"); return;} |
||
| 435 | c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]); |
||
| 436 | gdImageLine(himg,0,ny/2,nx-1,ny/2,c); gdImageLine(himg,nx/2,0,nx/2,ny-1,c); |
||
| 437 | gdImageSetTile(image,himg); |
||
| 438 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
| 439 | gdImageDestroy(himg); |
||
| 440 | if(tiled) gdImageSetTile(image,tileimg); |
||
| 441 | } |
||
| 442 | |||
| 443 | /* flood fill with double hatching */ |
||
| 444 | void obj_diafill(objparm *pm) |
||
| 445 | { |
||
| 446 | int nx,ny, c; |
||
| 447 | scale(pm->pd,pm->p,1); |
||
| 448 | nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny); |
||
| 449 | if(nx==0 && ny==0) {error("bad grid size"); return;} |
||
| 450 | c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]); |
||
| 451 | gdImageLine(himg,0,0,nx-1,ny-1,c); gdImageLine(himg,0,ny-1,nx-1,0,c); |
||
| 452 | gdImageSetTile(image,himg); |
||
| 453 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
| 454 | gdImageDestroy(himg); |
||
| 455 | if(tiled) gdImageSetTile(image,tileimg); |
||
| 456 | } |
||
| 457 | |||
| 458 | /* flood fill with double hatching */ |
||
| 459 | void obj_dotfill(objparm *pm) |
||
| 460 | { |
||
| 461 | int nx,ny, c; |
||
| 462 | scale(pm->pd,pm->p,1); |
||
| 463 | nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny); |
||
| 464 | if(nx==0 && ny==0) {error("bad grid size"); return;} |
||
| 465 | c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]); |
||
| 466 | gdImageSetPixel(himg,nx/2,ny/2,c); |
||
| 467 | gdImageSetTile(image,himg); |
||
| 468 | gdImageFill(image,pm->p[0],pm->p[1],gdTiled); |
||
| 469 | gdImageDestroy(himg); |
||
| 470 | if(tiled) gdImageSetTile(image,tileimg); |
||
| 471 | } |
||
| 472 | |||
| 473 | struct { |
||
| 474 | char *name; |
||
| 475 | gdFontPtr *fpt; |
||
| 476 | } fonttab[]={ |
||
| 477 | {"tiny", &gdFontTiny}, |
||
| 478 | {"small", &gdFontSmall}, |
||
| 479 | {"medium",&gdFontMediumBold}, |
||
| 480 | {"large", &gdFontLarge}, |
||
| 481 | {"giant", &gdFontGiant}, |
||
| 482 | {"huge", &gdFontGiant} |
||
| 483 | }; |
||
| 484 | |||
| 485 | #define fonttab_no (sizeof(fonttab)/sizeof(fonttab[0])) |
||
| 486 | |||
| 487 | /* string */ |
||
| 488 | void obj_string(objparm *pm) |
||
| 489 | { |
||
| 490 | char *pp, *pe, *p2; |
||
| 491 | int i; |
||
| 492 | pp=pm->str; pe=strchr(pp,','); if(pe==NULL) { |
||
| 493 | error("too_few_parms"); return; |
||
| 494 | } |
||
| 495 | *pe++=0; pp=find_word_start(pp); *find_word_end(pp)=0; |
||
| 496 | pe=find_word_start(pe); strip_trailing_spaces(pe); |
||
| 497 | if(*pp) { |
||
| 498 | for(i=0;i<fonttab_no && strcmp(pp,fonttab[i].name)!=0; i++); |
||
| 499 | if(i>=fonttab_no) i=1; |
||
| 500 | } |
||
| 501 | else i=1; |
||
| 502 | scale(pm->pd,pm->p,1); |
||
| 503 | if(*pe=='"') { |
||
| 504 | p2=strchr(pe+1,'"'); |
||
| 505 | if(p2 && *(p2+1)==0) {*p2=0; pe++;} |
||
| 506 | } |
||
| 507 | if(pm->fill) |
||
| 508 | gdImageStringUp(image,*(fonttab[i].fpt),pm->p[0],pm->p[1],pe, |
||
| 509 | pm->color[0]); |
||
| 510 | else |
||
| 511 | gdImageString(image,*(fonttab[i].fpt),pm->p[0],pm->p[1],pe, |
||
| 512 | pm->color[0]); |
||
| 513 | } |
||
| 514 | |||
| 515 | /* point */ |
||
| 516 | void obj_point(objparm *pm) |
||
| 517 | { |
||
| 518 | scale(pm->pd,pm->p,1); |
||
| 519 | gdImageSetPixel(image,pm->p[0],pm->p[1],pm->color[0]); |
||
| 520 | } |
||
| 521 | |||
| 522 | /* copy an image file */ |
||
| 523 | void obj_copy(objparm *pm) |
||
| 524 | { |
||
| 525 | char *pp; |
||
| 526 | FILE *inf; |
||
| 527 | gdImagePtr insimg; |
||
| 528 | |||
| 529 | pp=find_word_start(pm->str);*find_word_end(pp)=0; |
||
| 530 | inf=open4read(pp); |
||
| 531 | if(inf==NULL) { |
||
| 532 | error("file_not_exist"); return; |
||
| 533 | } |
||
| 534 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
| 535 | if(insimg==NULL) { |
||
| 536 | error("bad_gif"); return; |
||
| 537 | } |
||
| 538 | scale(pm->pd,pm->p,1); |
||
| 539 | if(pm->pd[2]<0 && pm->pd[3]<0 && pm->pd[4]<0 && pm->pd[5]<0) |
||
| 540 | gdImageCopy(image,insimg,pm->p[0],pm->p[1],0,0, |
||
| 541 | insimg->sx,insimg->sy); |
||
| 542 | else |
||
| 543 | gdImageCopy(image,insimg,pm->p[0],pm->p[1],pm->pd[2],pm->pd[3], |
||
| 544 | pm->pd[4]-pm->pd[2],pm->pd[5]-pm->pd[3]); |
||
| 545 | gdImageDestroy(insimg); |
||
| 546 | } |
||
| 547 | |||
| 548 | /* copy an image file, with resizing */ |
||
| 549 | void obj_copyresize(objparm *pm) |
||
| 550 | { |
||
| 551 | char *pp; |
||
| 552 | FILE *inf; |
||
| 553 | gdImagePtr insimg; |
||
| 554 | |||
| 555 | pp=find_word_start(pm->str);*find_word_end(pp)=0; |
||
| 556 | inf=open4read(pp); |
||
| 557 | if(inf==NULL) { |
||
| 558 | error("file_not_found"); return; |
||
| 559 | } |
||
| 560 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
| 561 | if(insimg==NULL) { |
||
| 562 | error("bad_gif"); return; |
||
| 563 | } |
||
| 564 | scale(pm->pd+4,pm->p+4,2); |
||
| 565 | if(pm->pd[0]<0 && pm->pd[1]<0 && pm->pd[2]<0 && pm->pd[3]<0) |
||
| 566 | gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],0,0, |
||
| 567 | pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1, |
||
| 568 | insimg->sx,insimg->sy); |
||
| 569 | else |
||
| 570 | gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],pm->pd[0],pm->pd[1], |
||
| 571 | pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1, |
||
| 572 | pm->pd[2]-pm->pd[0]+1,pm->pd[3]-pm->pd[1]+1); |
||
| 573 | gdImageDestroy(insimg); |
||
| 574 | } |
||
| 575 | |||
| 576 | /* set brush or tile */ |
||
| 577 | void obj_setbrush(objparm *pm) |
||
| 578 | { |
||
| 579 | char *pp; |
||
| 580 | FILE *inf; |
||
| 581 | gdImagePtr insimg; |
||
| 582 | |||
| 583 | pp=find_word_start(pm->str); *find_word_end(pp)=0; |
||
| 584 | inf=open4read(pp); if(inf==NULL) { |
||
| 585 | error("file_not_found"); return; |
||
| 586 | } |
||
| 587 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
| 588 | if(insimg==NULL) { |
||
| 589 | error("bad_gif"); return; |
||
| 590 | } |
||
| 591 | if(pm->fill) { |
||
| 592 | gdImageSetTile(image,insimg); tiled=1; tileimg=insimg; |
||
| 593 | } |
||
| 594 | else { |
||
| 595 | gdImageSetBrush(image,insimg);brushed=1; brushimg=insimg; |
||
| 596 | } |
||
| 597 | } |
||
| 598 | |||
| 599 | /* kill brush */ |
||
| 600 | void obj_killbrush(objparm *pm) |
||
| 601 | { |
||
| 602 | if(brushimg) gdImageDestroy(brushimg); |
||
| 603 | brushed=0; brushimg=NULL; |
||
| 604 | } |
||
| 605 | |||
| 606 | /* kill tile */ |
||
| 607 | void obj_killtile(objparm *pm) |
||
| 608 | { |
||
| 609 | if(tileimg) gdImageDestroy(tileimg); |
||
| 610 | tiled=0; tileimg=NULL; |
||
| 611 | } |
||
| 612 | |||
| 613 | /* set style */ |
||
| 614 | void obj_setstyle(objparm *pm) |
||
| 615 | { |
||
| 616 | int i,t; |
||
| 617 | t=pm->pcnt/3; if(t<=0) { |
||
| 618 | error("too_few_parms"); return; |
||
| 619 | } |
||
| 620 | for(i=0;i<t;i++) { |
||
| 621 | if(pm->pd[3*i]<0 || pm->pd[3*i+1]<0 || pm->pd[3*i+2]<0) |
||
| 622 | pm->p[i]=gdTransparent; |
||
| 623 | else |
||
| 624 | pm->p[i]=getcolor(pm->pd[3*i],pm->pd[3*i+1],pm->pd[3*i+2]); |
||
| 625 | } |
||
| 626 | |||
| 627 | gdImageSetStyle(image,pm->p,t); styled=1; |
||
| 628 | } |
||
| 629 | |||
| 630 | /* kill style */ |
||
| 631 | void obj_killstyle(objparm *pm) |
||
| 632 | { |
||
| 633 | styled=0; |
||
| 634 | } |
||
| 635 | |||
| 636 | /* set transparent */ |
||
| 637 | void obj_transp(objparm *pm) |
||
| 638 | { |
||
| 639 | gdImageColorTransparent(image,pm->color[0]); |
||
| 640 | } |
||
| 641 | |||
| 642 | /* set interlace */ |
||
| 643 | void obj_interlace(objparm *pm) |
||
| 644 | { |
||
| 645 | gdImageInterlace(image,1); |
||
| 646 | } |
||
| 647 | |||
| 648 | /* set linewidth */ |
||
| 649 | void obj_linewidth(objparm *pm) |
||
| 650 | { |
||
| 651 | if(pm->pd[0]<1 || pm->pd[0]>255) error("bad_parms"); |
||
| 652 | else width=pm->pd[0]; |
||
| 653 | } |
||
| 654 | |||
| 655 | /* set x range */ |
||
| 656 | void obj_xrange(objparm *pm) |
||
| 657 | { |
||
| 658 | double dd; |
||
| 659 | dd=pm->pd[1]-pm->pd[0]; |
||
| 660 | xstart=pm->pd[0]; xscale=sizex/dd; |
||
| 661 | } |
||
| 662 | |||
| 663 | /* set y range */ |
||
| 664 | void obj_yrange(objparm *pm) |
||
| 665 | { |
||
| 666 | double dd; |
||
| 667 | dd=pm->pd[1]-pm->pd[0]; |
||
| 668 | ystart=pm->pd[1]; yscale=-sizey/dd; |
||
| 669 | } |
||
| 670 | |||
| 671 | /* set x et y range */ |
||
| 672 | void obj_range(objparm *pm) |
||
| 673 | { |
||
| 674 | double d1,d2; |
||
| 675 | d1=pm->pd[1]-pm->pd[0]; d2=pm->pd[3]-pm->pd[2]; |
||
| 676 | xstart=pm->pd[0]; xscale=(sizex-1)/d1; |
||
| 677 | ystart=pm->pd[3]; yscale=-(sizey-1)/d2; |
||
| 678 | } |
||
| 679 | |||
| 680 | /* set t range */ |
||
| 681 | void obj_trange(objparm *pm) |
||
| 682 | { |
||
| 683 | double dd; |
||
| 684 | dd=pm->pd[1]-pm->pd[0]; |
||
| 685 | tstart=pm->pd[0]; tend=pm->pd[1]; |
||
| 686 | tranged=1; |
||
| 687 | } |
||
| 688 | |||
| 689 | /* set tstep (plotting step) */ |
||
| 690 | void obj_tstep(objparm *pm) |
||
| 691 | { |
||
| 692 | int dd; |
||
| 693 | dd=pm->pd[0]; |
||
| 694 | if(dd<3) { |
||
| 695 | error("bad_step"); return; |
||
| 696 | } |
||
| 697 | if(dd>2000) dd=2000; |
||
| 698 | tstep=dd; |
||
| 699 | } |
||
| 700 | |||
| 701 | /* set plotjump (plot jump break threashold) */ |
||
| 702 | void obj_plotjump(objparm *pm) |
||
| 703 | { |
||
| 704 | int dd; |
||
| 705 | dd=pm->pd[0]; |
||
| 706 | if(dd<3) dd=3; if(dd>MAX_SIZE) dd=MAX_SIZE; |
||
| 707 | plotjump=dd; |
||
| 708 | } |
||
| 709 | |||
| 710 | /* plot a curve, either parametric or explicit */ |
||
| 711 | void obj_plot(objparm *pm) |
||
| 712 | { |
||
| 713 | int i,j,n,dist,xx,yy,varpos; |
||
| 714 | char p1[MAX_LINELEN+1], p2[MAX_LINELEN+1]; |
||
| 715 | char *varn, *pp; |
||
| 716 | double dc[2],t,v; |
||
| 717 | int ic[2],oc[2]; |
||
| 718 | |||
| 719 | n=itemnum(pm->str); |
||
| 720 | if(n<1) { |
||
| 721 | error("bad_parms"); return; |
||
| 722 | } |
||
| 723 | fnd_item(pm->str,1,p1); fnd_item(pm->str,2,p2); |
||
| 724 | if(n==1 && !tranged) v=sizex/xscale/tstep; |
||
| 725 | else v=(tend-tstart)/tstep; |
||
| 726 | if(n==1) varn="x"; else varn="t"; |
||
| 727 | for(pp=varchr(p1,varn); pp; pp=varchr(pp,varn)) { |
||
| 728 | string_modify(p1,pp,pp+strlen(varn),EV_T); |
||
| 729 | pp+=strlen(EV_T); |
||
| 730 | } |
||
| 731 | for(pp=varchr(p2,varn); pp; pp=varchr(pp,varn)) { |
||
| 732 | string_modify(p2,pp,pp+strlen(varn),EV_T); |
||
| 733 | pp+=strlen(EV_T); |
||
| 734 | } |
||
| 735 | varpos=eval_getpos(EV_T); |
||
| 736 | if(varpos<0) return; /* unknown error */ |
||
| 737 | evalue_compile(p1); evalue_compile(p2); |
||
| 738 | for(i=j=0;i<=tstep;i++) { |
||
| 739 | if(n==1) { |
||
| 740 | if(tranged) t=tstart+i*v; else t=xstart+i*v; |
||
| 741 | eval_setval(varpos,t); dc[0]=t; dc[1]=evalue(p1); |
||
| 742 | } |
||
| 743 | else { |
||
| 744 | t=tstart+i*v; eval_setval(varpos,t); |
||
| 745 | dc[0]=evalue(p1); dc[1]=evalue(p2); |
||
| 746 | } |
||
| 747 | if(!finite(dc[0]) || !finite(dc[1])) ic[0]=ic[1]=-BOUND; |
||
| 748 | else scale(dc,ic,1); |
||
| 749 | if(j==0) { |
||
| 750 | gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); j++; |
||
| 751 | } |
||
| 752 | else { |
||
| 753 | xx=ic[0]-oc[0]; yy=ic[1]-oc[1]; |
||
| 754 | dist=sqrt(xx*xx+yy*yy); |
||
| 755 | if(dist>0) { |
||
| 756 | if(dist>plotjump || dist==1) |
||
| 757 | gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); |
||
| 758 | else |
||
| 759 | gdImageLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]); |
||
| 760 | |||
| 761 | } |
||
| 762 | } |
||
| 763 | memmove(oc,ic,sizeof(oc)); |
||
| 764 | } |
||
| 765 | } |
||
| 766 | |||
| 767 | /* set levelcurve granularity */ |
||
| 768 | void obj_levelstep(objparm *pm) |
||
| 769 | { |
||
| 770 | int dd; |
||
| 771 | dd=pm->pd[0]; |
||
| 772 | if(dd<1) return; if(dd>16) dd=16; |
||
| 773 | lstep=dd; |
||
| 774 | } |
||
| 775 | |||
| 776 | /* level curve */ |
||
| 777 | void obj_levelcurve(objparm *pm) |
||
| 778 | { |
||
| 779 | char fn[MAX_LINELEN+1],tc[MAX_LINELEN+1]; |
||
| 780 | int n,i; |
||
| 781 | double d; |
||
| 782 | leveldata *ld; |
||
| 783 | |||
| 784 | ld=xmalloc(sizeof(leveldata)+16); |
||
| 785 | ld->xname="x"; ld->yname="y"; |
||
| 786 | ld->xsize=sizex; ld->ysize=sizey; ld->datacnt=0; |
||
| 787 | ld->xrange[0]=xstart; ld->xrange[1]=sizex/xscale+xstart; |
||
| 788 | ld->yrange[0]=sizey/yscale+ystart; ld->yrange[1]=ystart; |
||
| 789 | ld->grain=lstep; |
||
| 790 | fnd_item(pm->str,1,fn); ld->fn=fn; |
||
| 791 | n=itemnum(pm->str); |
||
| 792 | if(n<=1) {ld->levelcnt=1; ld->levels[0]=0;} |
||
| 793 | else { |
||
| 794 | if(n>LEVEL_LIM+1) n=LEVEL_LIM+1; |
||
| 795 | for(i=0;i<n-1;i++) { |
||
| 796 | fnd_item(pm->str,i+2,tc); |
||
| 797 | d=evalue(tc); |
||
| 798 | if(finite(d)) ld->levels[i]=d; else ld->levels[i]=0; |
||
| 799 | } |
||
| 800 | ld->levelcnt=n-1; |
||
| 801 | } |
||
| 802 | levelcurve(ld); |
||
| 803 | for(i=0;i<ld->datacnt;i++) { |
||
| 804 | gdImageSetPixel(image,ld->xdata[i],ld->ydata[i],pm->color[0]); |
||
| 805 | } |
||
| 806 | free(ld); |
||
| 807 | } |
||
| 808 | |||
| 809 | /* set animation step */ |
||
| 810 | void obj_animstep(objparm *pm) |
||
| 811 | { |
||
| 812 | animstep=pm->pd[0]; |
||
| 813 | setvar("animstep",pm->pd[0]); |
||
| 814 | } |
||
| 815 | |||
| 816 | /* Starts a line counting */ |
||
| 817 | void obj_linecount(objparm *pm) |
||
| 818 | { |
||
| 819 | linecnt=pm->pd[0]; |
||
| 820 | } |
||
| 821 | |||
| 822 | /* marks end of execution */ |
||
| 823 | void obj_end(objparm *pm) |
||
| 824 | { |
||
| 825 | error("successful_end_of_execution"); |
||
| 826 | } |
||
| 827 | |||
| 828 | /* output */ |
||
| 829 | void obj_output(objparm *pm) |
||
| 830 | { |
||
| 831 | char *p, namebuf[1024]; |
||
| 832 | p=find_word_start(pm->str); *find_word_end(p)=0; |
||
| 833 | snprintf(namebuf,sizeof(namebuf),"%s",imagefilename); |
||
| 834 | snprintf(imagefilename,sizeof(imagefilename),"%s",p); |
||
| 835 | output(); |
||
| 836 | snprintf(imagefilename,sizeof(imagefilename),"%s",namebuf); |
||
| 837 | } |
||
| 838 | |||
| 839 | /* Set affine transformation */ |
||
| 840 | void obj_affine(objparm *pm) |
||
| 841 | { |
||
| 842 | int i; |
||
| 843 | for(i=0;i<4;i++) matrix[i]=pm->pd[i]; |
||
| 844 | transx=pm->pd[4]; transy=pm->pd[5]; |
||
| 845 | transform=1; |
||
| 846 | } |
||
| 847 | |||
| 848 | /* Set affine transformation */ |
||
| 849 | void obj_rotation(objparm *pm) |
||
| 850 | { |
||
| 851 | double r; |
||
| 852 | r=M_PI*pm->pd[0]/180; |
||
| 853 | matrix[0]=matrix[3]=cos(r); |
||
| 854 | matrix[1]=-sin(r); matrix[2]=sin(r); |
||
| 855 | transform=1; |
||
| 856 | } |
||
| 857 | |||
| 858 | /* Set affine transformation */ |
||
| 859 | void obj_linear(objparm *pm) |
||
| 860 | { |
||
| 861 | int i; |
||
| 862 | for(i=0;i<4;i++) matrix[i]=pm->pd[i]; |
||
| 863 | transform=1; |
||
| 864 | } |
||
| 865 | |||
| 866 | /* Set affine transformation */ |
||
| 867 | void obj_translation(objparm *pm) |
||
| 868 | { |
||
| 869 | transx=pm->pd[0]; transy=pm->pd[1]; |
||
| 870 | } |
||
| 871 | |||
| 872 | /* Set affine transformation */ |
||
| 873 | void obj_killaffine(objparm *pm) |
||
| 874 | { |
||
| 875 | matrix[0]=matrix[3]=1; |
||
| 876 | matrix[1]=matrix[2]=transx=transy=0; |
||
| 877 | transform=0; |
||
| 878 | } |
||
| 879 | |||
| 880 | /* Set affine transformation */ |
||
| 881 | void obj_killlinear(objparm *pm) |
||
| 882 | { |
||
| 883 | matrix[0]=matrix[3]=1; |
||
| 884 | matrix[1]=matrix[2]=0; |
||
| 885 | transform=0; |
||
| 886 | } |
||
| 887 | |||
| 888 | /* Set affine transformation */ |
||
| 889 | void obj_killtranslation(objparm *pm) |
||
| 890 | { |
||
| 891 | transx=transy=0; |
||
| 892 | } |
||
| 893 | |||
| 894 | /***** Les modifs de Jean-Christophe Leger Fev 2006 *****/ |
||
| 895 | |||
| 896 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES, une liste de 4 nombres reels pour la matrice */ |
||
| 897 | void obj_setmatrix(objparm *pm) |
||
| 898 | { |
||
| 899 | int nummatrix = (int) (pm->pd[0]); |
||
| 900 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
| 901 | error("bad_matrix_number"); |
||
| 902 | return; |
||
| 903 | } |
||
| 904 | matrices_pavage[nummatrix][0] = pm->pd[1]; |
||
| 905 | matrices_pavage[nummatrix][1] = pm->pd[2]; |
||
| 906 | matrices_pavage[nummatrix][2] = pm->pd[3]; |
||
| 907 | matrices_pavage[nummatrix][3] = pm->pd[4]; |
||
| 908 | } |
||
| 909 | |||
| 910 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */ |
||
| 911 | void obj_resetmatrix(objparm *pm) |
||
| 912 | { |
||
| 913 | int nummatrix = (int) (pm->pd[0]); |
||
| 914 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
| 915 | error("bad_matrix_number"); |
||
| 916 | return; |
||
| 917 | } |
||
| 918 | matrices_pavage[nummatrix][0] = 1; |
||
| 919 | matrices_pavage[nummatrix][1] = 0; |
||
| 920 | matrices_pavage[nummatrix][2] = 0; |
||
| 921 | matrices_pavage[nummatrix][3] = 1; |
||
| 922 | |||
| 923 | } |
||
| 924 | /* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 2 nombres reels pour le vecteur */ |
||
| 925 | void obj_setvector(objparm *pm) |
||
| 926 | { |
||
| 927 | int nummatrix = (int) (pm->pd[0]); |
||
| 928 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
| 929 | error("bad_vector_number"); |
||
| 930 | return; |
||
| 931 | } |
||
| 932 | vecteurs_pavage[nummatrix][0] = pm->pd[1]; |
||
| 933 | vecteurs_pavage[nummatrix][1] = pm->pd[2]; |
||
| 934 | } |
||
| 935 | |||
| 936 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */ |
||
| 937 | void obj_resetvector(objparm *pm) |
||
| 938 | { |
||
| 939 | int nummatrix = (int) (pm->pd[0]); |
||
| 940 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
| 941 | error("bad_vector_number"); |
||
| 942 | return; |
||
| 943 | } |
||
| 944 | vecteurs_pavage[nummatrix][0] = 0; |
||
| 945 | vecteurs_pavage[nummatrix][1] = 0; |
||
| 946 | } |
||
| 947 | |||
| 948 | /* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 6 nombres reels pour la matrice et le vecteur */ |
||
| 949 | void obj_settransform(objparm *pm) |
||
| 950 | { |
||
| 951 | int nummatrix = (int) (pm->pd[0]); |
||
| 952 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
| 953 | error("bad_vector_number"); |
||
| 954 | return; |
||
| 955 | } |
||
| 956 | matrices_pavage[nummatrix][0] = pm->pd[1]; |
||
| 957 | matrices_pavage[nummatrix][1] = pm->pd[2]; |
||
| 958 | matrices_pavage[nummatrix][2] = pm->pd[3]; |
||
| 959 | matrices_pavage[nummatrix][3] = pm->pd[4]; |
||
| 960 | vecteurs_pavage[nummatrix][0] = pm->pd[5]; |
||
| 961 | vecteurs_pavage[nummatrix][1] = pm->pd[6]; |
||
| 962 | } |
||
| 963 | |||
| 964 | |||
| 965 | /* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */ |
||
| 966 | void obj_resettransform(objparm *pm) |
||
| 967 | { |
||
| 968 | int nummatrix = (int) (pm->pd[0]); |
||
| 969 | if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) { |
||
| 970 | error("bad_vector_number"); |
||
| 971 | return; |
||
| 972 | } |
||
| 973 | vecteurs_pavage[nummatrix][0] = 0; |
||
| 974 | vecteurs_pavage[nummatrix][1] = 0; |
||
| 975 | matrices_pavage[nummatrix][0] = 1; |
||
| 976 | matrices_pavage[nummatrix][1] = 0; |
||
| 977 | matrices_pavage[nummatrix][2] = 0; |
||
| 978 | matrices_pavage[nummatrix][3] = 1; |
||
| 979 | } |
||
| 980 | |||
| 981 | /* arguments: une liste de 6 nombres reels pour les coordonnees de l'origine et des vecteurs de base */ |
||
| 982 | void obj_setparallelogram(objparm *pm) |
||
| 983 | { |
||
| 984 | int i; |
||
| 985 | for(i=0;i<6;i++) parallogram_fonda[i]=pm->pd[i]; |
||
| 986 | } |
||
| 987 | |||
| 988 | /* arguments :aucun */ |
||
| 989 | void obj_resetparallelogram(objparm *pm) |
||
| 990 | { |
||
| 991 | parallogram_fonda[0]=0; |
||
| 992 | parallogram_fonda[1]=0; |
||
| 993 | parallogram_fonda[2]=100; |
||
| 994 | parallogram_fonda[3]=0; |
||
| 995 | parallogram_fonda[4]=0; |
||
| 996 | parallogram_fonda[5]=100; |
||
| 997 | } |
||
| 998 | |||
| 999 | /* argument : la liste des numeros des matrices a faire agir, le nom du fichier de l'image a inclure */ |
||
| 1000 | void obj_multicopy(objparm *pm) |
||
| 1001 | { |
||
| 1002 | char *pp,*pe,*cptr; |
||
| 1003 | FILE *inf; |
||
| 1004 | gdImagePtr insimg; |
||
| 1005 | int i,j; |
||
| 1006 | int imax,jmax; |
||
| 1007 | int c; /* la couleur reperee */ |
||
| 1008 | int mat; |
||
| 1009 | int nummatrices[JC_NB_MATRICES]; |
||
| 1010 | double pt[2]; /* les coordonnees math. du point repere dans le parallelogramme */ |
||
| 1011 | double ptr[2]; /* les coordonnees math. du point transforme */ |
||
| 1012 | int pti[2]; /* les coordonnees img du point a placer sur le canevas */ |
||
| 1013 | int t; |
||
| 1014 | /* gestion palette de couleur de l'image a inserer */ |
||
| 1015 | int colorMap[gdMaxColors]; |
||
| 1016 | int comptmat=0; /* combien de matrices en tout ? */ |
||
| 1017 | |||
| 1018 | for (i=0; (i<gdMaxColors); i++) { |
||
| 1019 | colorMap[i] = (-1); |
||
| 1020 | } |
||
| 1021 | |||
| 1022 | /* Gestion des parametres la liste est censee finir avec le nom du fichier */ |
||
| 1023 | t=pm->pcnt-1; /* il faut enlever le nom de fichier ! c'est le nombre de parametres en plus */ |
||
| 1024 | pp=find_word_start(pm->str); |
||
| 1025 | /* visiblement find_word_start n'arrive pas a trouver le dernier mot dans un contexte ou le nombre de parameters est variable |
||
| 1026 | * on cherche donc l'emplacement de la derniere virgule: |
||
| 1027 | * il y en a une car t>0, on retrouve ensuite le debut de mot |
||
| 1028 | */ |
||
| 1029 | for(pe=pp;*pe!=0;pe++);/* trouve la fin de la chaine */ |
||
| 1030 | if(t>0){ |
||
| 1031 | for(cptr = pe; cptr > pp && *cptr != ','; cptr--); |
||
| 1032 | pp=find_word_start(cptr+1); |
||
| 1033 | } |
||
| 1034 | pe=find_word_end(pp);*pe=0; /* strip junk final */ |
||
| 1035 | // printf("pp contient %s\n",pp); |
||
| 1036 | |||
| 1037 | |||
| 1038 | inf=open4read(pp); |
||
| 1039 | if(inf==NULL) { |
||
| 1040 | error("file_not_exist"); return; |
||
| 1041 | } |
||
| 1042 | insimg=gdImageCreateFromGif(inf); fclose(inf); |
||
| 1043 | if(insimg==NULL) { |
||
| 1044 | error("bad_gif"); return; |
||
| 1045 | } |
||
| 1046 | |||
| 1047 | /* On recupere les numeros des matrices/vecteurs a faire agir, |
||
| 1048 | * s'il n'y en a pas, on les fait toutes agir |
||
| 1049 | */ |
||
| 1050 | for(i=0;i<t && i< JC_NB_MATRICES;i++) { |
||
| 1051 | if(pm->pd[i]>=1 && pm->pd[i]<=JC_NB_MATRICES){ |
||
| 1052 | nummatrices[comptmat] = pm->pd[i]; |
||
| 1053 | comptmat++; |
||
| 1054 | } |
||
| 1055 | } |
||
| 1056 | if(t<=0){ |
||
| 1057 | for(i=0;i<JC_NB_MATRICES;i++) { |
||
| 1058 | nummatrices[i] = i+1; |
||
| 1059 | } |
||
| 1060 | comptmat=JC_NB_MATRICES; |
||
| 1061 | } |
||
| 1062 | |||
| 1063 | |||
| 1064 | imax = gdImageSX(insimg); |
||
| 1065 | jmax = gdImageSY(insimg); |
||
| 1066 | |||
| 1067 | for(i=0;i<imax;i++){ |
||
| 1068 | for(j=0;j<jmax;j++){ |
||
| 1069 | int nc; |
||
| 1070 | c=gdImageGetPixel(insimg,i,j); |
||
| 1071 | /* Le code suivant est une copie du code dans gdImageCopy Added 7/24/95: support transparent copies */ |
||
| 1072 | if (gdImageGetTransparent(insimg) != c) { |
||
| 1073 | /* Have we established a mapping for this color? */ |
||
| 1074 | if (colorMap[c] == (-1)) { |
||
| 1075 | /* If it's the same image, mapping is trivial, dans notre cas ca n'arrive jamais... */ |
||
| 1076 | if (image == insimg) { |
||
| 1077 | nc = c; |
||
| 1078 | } else { |
||
| 1079 | /* First look for an exact match */ |
||
| 1080 | nc = gdImageColorExact(image, |
||
| 1081 | insimg->red[c], insimg->green[c], |
||
| 1082 | insimg->blue[c]); |
||
| 1083 | } |
||
| 1084 | if (nc == (-1)) { |
||
| 1085 | /* No, so try to allocate it */ |
||
| 1086 | nc = gdImageColorAllocate(image, |
||
| 1087 | insimg->red[c], insimg->green[c], |
||
| 1088 | insimg->blue[c]); |
||
| 1089 | /* If we're out of colors, go for the |
||
| 1090 | closest color */ |
||
| 1091 | if (nc == (-1)) { |
||
| 1092 | nc = gdImageColorClosest(image, |
||
| 1093 | insimg->red[c], insimg->green[c], |
||
| 1094 | insimg->blue[c]); |
||
| 1095 | } |
||
| 1096 | } |
||
| 1097 | colorMap[c] = nc; |
||
| 1098 | } |
||
| 1099 | |||
| 1100 | pt[0]= i*(parallogram_fonda[2])/(imax-1)+(jmax-j)*(parallogram_fonda[4])/(jmax-1)+parallogram_fonda[0]; |
||
| 1101 | pt[1]= i*(parallogram_fonda[3])/(imax-1)+(jmax-j)*(parallogram_fonda[5])/(jmax-1)+parallogram_fonda[1]; |
||
| 1102 | for(mat=0;mat<comptmat;mat++){ |
||
| 1103 | double *matricecourante = matrices_pavage[nummatrices[mat]]; |
||
| 1104 | double *vecteurcourant = vecteurs_pavage[nummatrices[mat]]; |
||
| 1105 | ptr[0] = matricecourante[0]*pt[0]+matricecourante[1]*pt[1]+vecteurcourant[0]; |
||
| 1106 | ptr[1] = matricecourante[2]*pt[0]+matricecourante[3]*pt[1]+vecteurcourant[1]; |
||
| 1107 | scale(ptr,pti,1); |
||
| 1108 | gdImageSetPixel(image,pti[0],pti[1],colorMap[c]); |
||
| 1109 | } |
||
| 1110 | } |
||
| 1111 | } |
||
| 1112 | } |
||
| 1113 | gdImageDestroy(insimg); |
||
| 1114 | } |
||
| 1115 | |||
| 1116 | /**** Fin modifs JC Fev 06 ******/ |
||
| 1117 | |||
| 1118 | /* get color from value */ |
||
| 1119 | int calc_color(char *p, struct objtab *o) |
||
| 1120 | { |
||
| 1121 | int k, cc[3]; |
||
| 1122 | char buf[MAX_LINELEN+1]; |
||
| 1123 | for(k=0;k<3;k++) { |
||
| 1124 | fnd_item(p,k+1,buf); |
||
| 1125 | cc[k]=evalue(buf); |
||
| 1126 | } |
||
| 1127 | collapse_item(p,3); |
||
| 1128 | if(cc[0]==-1 && cc[1]==-1 && cc[2]==-255) { |
||
| 1129 | |||
| 1130 | if(brushed && o->subst&1) return gdBrushed; |
||
| 1131 | else return color_black; |
||
| 1132 | } |
||
| 1133 | if(cc[0]==-1 && cc[1]==-255 && cc[2]==-1) { |
||
| 1134 | if(styled && o->subst&2) return gdStyled; |
||
| 1135 | else return color_black; |
||
| 1136 | } |
||
| 1137 | if(cc[0]==-255 && cc[1]==-1 && cc[2]==-1) { |
||
| 1138 | if(tiled && o->fill_tag==1) return gdTiled; |
||
| 1139 | else return color_black; |
||
| 1140 | } |
||
| 1141 | return getcolor(cc[0],cc[1],cc[2]); |
||
| 1142 | } |
||
| 1143 | |||
| 1144 | /* Routine to parse parameters */ |
||
| 1145 | int parse_parms(char *p,objparm *pm,struct objtab *o) |
||
| 1146 | { |
||
| 1147 | char buf[MAX_LINELEN+1]; |
||
| 1148 | char *p1, *p2; |
||
| 1149 | int j,t,c,c1,c2; |
||
| 1150 | |||
| 1151 | c=o->color_pos;c1=c2=0; |
||
| 1152 | pm->color[0]=pm->color[1]=0; |
||
| 1153 | if(c>0) c1=c; if(c<0) c2=-c; c=c1+c2; |
||
| 1154 | t=itemnum(p);if(t<o->required_parms+3*c) return -1; |
||
| 1155 | if(c1>0 && t>o->required_parms+3*c) t=o->required_parms+3*c; |
||
| 1156 | pm->pcnt=t-3*c; |
||
| 1157 | if(pm->pcnt>MAX_PARMS) pm->pcnt=MAX_PARMS; |
||
| 1158 | if(c2>0) { |
||
| 1159 | for(j=0;j<2 && j<c2; j++) pm->color[j]=calc_color(p,o); |
||
| 1160 | } |
||
| 1161 | snprintf(buf,sizeof(buf),"%s",p); |
||
| 1162 | for(j=0, p1=buf; j<pm->pcnt; j++, p1=p2) { |
||
| 1163 | p2=find_item_end(p1); if(*p2) *p2++=0; |
||
| 1164 | p1=find_word_start(p1); |
||
| 1165 | if(*p1) pm->pd[j]=evalue(p1); else pm->pd[j]=0; |
||
| 1166 | if(!finite(pm->pd[j])) { |
||
| 1167 | if(j<o->required_parms) return -1; |
||
| 1168 | else {pm->pd[j]=0;break;} |
||
| 1169 | } |
||
| 1170 | } |
||
| 1171 | collapse_item(p,o->required_parms); |
||
| 1172 | if(c1>0) { |
||
| 1173 | for(j=0;j<c1 && j<2; j++) pm->color[j]=calc_color(p,o); |
||
| 1174 | } |
||
| 1175 | if(width>1 && o->subst&1 && pm->color[0]!=gdBrushed |
||
| 1176 | && pm->color[0]!=gdStyled && pm->color[0]!=gdTiled) { |
||
| 1177 | pm->color[1]=pm->color[0]; |
||
| 1178 | pm->color[0]=widthcolor(width,pm->color[0]); |
||
| 1179 | } |
||
| 1180 | pm->fill=o->fill_tag; |
||
| 1181 | strcpy(pm->str,p); return 0; |
||
| 1182 | } |
||
| 1183 | |||
| 1184 | /* Execute a command. Returns 0 if OK. */ |
||
| 1185 | int obj_main(char *p) |
||
| 1186 | { |
||
| 1187 | int i; |
||
| 1188 | char *pp,*name,*pt; |
||
| 1189 | char tbuf2[MAX_LINELEN+1]; |
||
| 1190 | struct objparm pm; |
||
| 1191 | |||
| 1192 | p=find_word_start(p); |
||
| 1193 | if(*p==exec_prefix_char || *p==0) return 0; /* comment */ |
||
| 1194 | name=p; |
||
| 1195 | pp=find_name_end(p); |
||
| 1196 | pt=find_word_start(pp); if(*pt=='=') *pt=' '; |
||
| 1197 | if(*pt==':' && *(pt+1)=='=') *pt=*(pt+1)=' '; |
||
| 1198 | pp=find_word_end(p); |
||
| 1199 | if(*pp!=0) { |
||
| 1200 | *(pp++)=0; pp=find_word_start(pp); |
||
| 1201 | } |
||
| 1202 | if(strlen(p)==1 || (strlen(p)==2 && isdigit(*(p+1)))) { |
||
| 1203 | setvar(p,evalue(pp)); return 0; |
||
| 1204 | } |
||
| 1205 | i=search_list(objtab,obj_no,sizeof(objtab[0]),name); |
||
| 1206 | if(i<0) { |
||
| 1207 | error("bad_cmd"); return 1; |
||
| 1208 | } |
||
| 1209 | if(image==NULL && (objtab[i].color_pos || objtab[i].required_parms>2)) { |
||
| 1210 | error("image_not_defined"); return 1; |
||
| 1211 | } |
||
| 1212 | strcpy(tbuf2,pp); |
||
| 1213 | if(objtab[i].color_pos || objtab[i].routine==obj_setstyle) { |
||
| 1214 | substit(tbuf2); |
||
| 1215 | } |
||
| 1216 | if(parse_parms(tbuf2,&pm,objtab+i)!=0) error("bad_parms"); |
||
| 1217 | else objtab[i].routine(&pm); |
||
| 1218 | return 0; |
||
| 1219 | } |
||
| 1220 |