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| 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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| 7675 | bpr | 17 | /* line input / output / translation routines |
| 18 | * and error routines */ |
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| 10 | reyssat | 19 | |
| 20 | void error(char *p) |
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| 21 | { |
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| 22 | fprintf(stderr,"%s %d\n",p,linecnt); |
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| 23 | } |
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| 24 | |||
| 7675 | bpr | 25 | /* Get a line in a stored working file. |
| 26 | * Buffer length is always MAX_LINELEN. */ |
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| 4934 | schaersvoo | 27 | |
| 7675 | bpr | 28 | /* 1/2012 |
| 4934 | schaersvoo | 29 | J.M. Evers |
| 7675 | bpr | 30 | Added ';' as additional command seperator |
| 31 | */ |
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| 10 | reyssat | 32 | int ggetline(char buf[]) |
| 33 | { |
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| 34 | int c; |
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| 35 | int i; |
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| 36 | for(i=0,c=getchar();i<MAX_LINELEN;i++,c=getchar()) { |
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| 7675 | bpr | 37 | if(c=='\n' || c==EOF || c==';') break; |
| 38 | buf[i]=c; |
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| 10 | reyssat | 39 | } |
| 7675 | bpr | 40 | buf[i]=0; |
| 10 | reyssat | 41 | if(linecnt!=-100000) linecnt++; |
| 42 | return c; |
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| 43 | } |
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| 44 | |||
| 45 | double getvar(char *p) |
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| 46 | { |
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| 47 | int i; |
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| 48 | for(i=0;i<varcnt && strcmp(p,vartab[i].name)!=0;i++); |
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| 49 | if(i<varcnt) return vartab[i].value; |
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| 50 | else return 0; |
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| 51 | } |
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| 52 | |||
| 53 | void setvar(char *p, double v) |
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| 54 | { |
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| 55 | int i; |
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| 56 | if((strlen(p)>2 && strcmp(p,"animstep")!=0) || !isalpha(*p)) return; |
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| 57 | for(i=0;i<varcnt && strcmp(p,vartab[i].name)!=0;i++); |
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| 58 | if(i<varcnt) {vartab[i].value=v; return;} |
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| 59 | else { |
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| 7675 | bpr | 60 | if(varcnt>=MAX_VARS || varnameptr>=varnamebuf+sizeof(varnamebuf)-1) return; |
| 61 | ovlstrcpy(varnameptr,p); |
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| 62 | vartab[varcnt].name=varnameptr; vartab[varcnt].value=v; |
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| 63 | varnameptr+=strlen(varnameptr)+1; (varcnt)++; |
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| 10 | reyssat | 64 | } |
| 65 | } |
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| 66 | |||
| 7675 | bpr | 67 | /* Points to the end of a name */ |
| 10 | reyssat | 68 | char *find_name_end(char *p) |
| 69 | { |
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| 70 | int i; |
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| 71 | for(i=0;isalnum(*p) && i<MAX_LINELEN; p++,i++); |
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| 72 | return p; |
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| 73 | } |
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| 74 | |||
| 7675 | bpr | 75 | /* Find the beginning of a name */ |
| 10 | reyssat | 76 | char *find_name_start(char *p) |
| 77 | { |
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| 78 | int i; |
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| 79 | for(i=0; !isalpha(*p) && i<MAX_LINELEN; p++,i++); |
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| 80 | return p; |
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| 81 | } |
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| 82 | |||
| 83 | void collapse_item(char *p, int n) |
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| 84 | { |
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| 85 | int i; |
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| 86 | char *pp; |
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| 87 | if(n<1) return; |
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| 88 | for(i=1,pp=strchr(p,','); i<n && pp!=NULL; i++,pp=strchr(pp+1,',')); |
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| 89 | if(pp==NULL) *p=0; |
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| 3718 | reyssat | 90 | else ovlstrcpy(p,pp+1); |
| 10 | reyssat | 91 | } |
| 92 | |||
| 93 | int getcolor(int r, int g, int b) |
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| 94 | { |
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| 95 | int col; |
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| 96 | if(r>255) r=255; if(r<0) r=0; |
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| 97 | if(g>255) g=255; if(g<0) g=0; |
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| 98 | if(b>255) b=255; if(b<0) b=0; |
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| 99 | col=gdImageColorExact(image, r, g, b); |
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| 100 | if(col==-1) col=gdImageColorAllocate(image,r,g,b); |
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| 101 | return col; |
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| 102 | } |
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| 103 | |||
| 104 | int widthcolor(int w, int color) |
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| 105 | { |
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| 106 | int bg,fg,sh,e; |
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| 7675 | bpr | 107 | /* already allocated */ |
| 10 | reyssat | 108 | if(wimg!=NULL && savew==w && wcolor==color) goto end; |
| 109 | if(wimg!=NULL) gdImageDestroy(wimg); |
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| 110 | wimg=gdImageCreate(w,w); |
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| 111 | if(wimg==NULL) { |
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| 7675 | bpr | 112 | error("width_creation_failure"); return color; |
| 10 | reyssat | 113 | } |
| 114 | bg=gdImageColorAllocate(wimg,255,255,255); |
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| 115 | gdImageColorTransparent(wimg,bg); |
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| 116 | fg=gdImageColorAllocate(wimg,gdImageRed(image,color), |
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| 7675 | bpr | 117 | gdImageGreen(image,color), |
| 118 | gdImageBlue(image,color)); |
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| 10 | reyssat | 119 | e=w-1;sh=e/3; |
| 120 | switch(w) { |
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| 7675 | bpr | 121 | case 2: { |
| 122 | gdImageFill(wimg,0,0,fg); break; |
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| 123 | } |
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| 124 | case 3: { |
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| 125 | gdImageFill(wimg,0,0,fg); |
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| 126 | gdImageSetPixel(wimg,2,0,bg);gdImageSetPixel(wimg,2,2,bg); |
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| 127 | break; |
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| 128 | } |
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| 129 | case 4: |
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| 130 | case 5: |
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| 131 | case 6: |
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| 132 | case 7: |
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| 133 | case 8: |
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| 134 | case 9: |
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| 135 | case 10: |
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| 136 | case 11: |
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| 137 | case 12: { |
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| 138 | int pl[]={0,sh, sh,0, e-sh,0, e,sh, |
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| 139 | e,e-sh, e-sh,e, sh,e, 0,e-sh}; |
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| 140 | gdImageFilledPolygon(wimg,(gdPointPtr) pl,8,fg); |
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| 141 | break; |
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| 142 | } |
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| 143 | default: { |
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| 144 | gdImageArc(wimg,w/2,w/2,w,w,0,360,fg); |
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| 145 | gdImageFillToBorder(wimg,w/2,w/2,fg,fg); |
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| 146 | break; |
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| 147 | } |
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| 10 | reyssat | 148 | } |
| 149 | savew=w; wcolor=color; |
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| 150 | end: gdImageSetBrush(image,wimg); return gdBrushed; |
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| 151 | } |
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| 152 | |||
| 7675 | bpr | 153 | /* scale coordinates, x then y */ |
| 10 | reyssat | 154 | void scale(double dbuf[], int ibuf[], int cnt) |
| 155 | { |
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| 156 | int i; double x,y; |
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| 1024 | bpr | 157 | for(i=0;i<cnt*2 && i<MAX_PARMS;i+=2) { |
| 7675 | bpr | 158 | if(transform) { |
| 159 | x=dbuf[i]*matrix[0]+dbuf[i+1]*matrix[1]; |
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| 160 | y=dbuf[i]*matrix[2]+dbuf[i+1]*matrix[3]; |
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| 161 | } |
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| 162 | else {x=dbuf[i]; y=dbuf[i+1];} |
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| 163 | scale_buf[i]=x+transx; scale_buf[i+1]=y+transy; |
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| 164 | ibuf[i]=rint((x-xstart+transx)*xscale); |
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| 165 | ibuf[i+1]=rint((y-ystart+transy)*yscale); |
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| 166 | if(ibuf[i]<-BOUND) ibuf[i]=-BOUND;if(ibuf[i]>BOUND) ibuf[i]=BOUND; |
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| 167 | if(ibuf[i+1]<-BOUND) ibuf[i+1]=-BOUND;if(ibuf[i+1]>BOUND) ibuf[i+1]=BOUND; |
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| 10 | reyssat | 168 | } |
| 169 | } |
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| 170 | |||
| 7675 | bpr | 171 | /* scale without displacement */ |
| 10 | reyssat | 172 | void scale2(double xin, double yin, double *xout, double *yout) |
| 173 | { |
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| 174 | if(transform) { |
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| 7675 | bpr | 175 | *xout=xin*matrix[0]+yin*matrix[1]; |
| 176 | *yout=xin*matrix[2]+yin*matrix[3]; |
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| 10 | reyssat | 177 | } |
| 178 | else { |
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| 7675 | bpr | 179 | *xout=xin; *yout=yin; |
| 10 | reyssat | 180 | } |
| 181 | *xout*=xscale; *yout*=yscale; |
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| 182 | } |
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| 183 |