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17599 bpr 1
/*    CopyrOAight (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis
10 reyssat 2
 *
3
 *  This program is free software; you can redistribute it and/or modify
4
 *  it under the terms of the GNU General Public License as published by
5
 *  the Free Software Foundation; either version 2 of the License, or
6
 *  (at your option) any later version.
7
 *
8
 *  This program is distributed in the hope that it will be useful,
9
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 *  GNU General Public License for more details.
12
 *
13
 *  You should have received a copy of the GNU General Public License
14
 *  along with this program; if not, write to the Free Software
15
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
16
 */
8177 bpr 17
 
18
#include <errno.h>
8102 bpr 19
#include "flydraw.h"
8177 bpr 20
 
17574 bpr 21
/* Tikz things */
17599 bpr 22
 
17608 bpr 23
static char *tikz_color (int the_color)
24
{
25
  static char buf[50];
26
  int r=gdImageRed(image,the_color);
27
  int g=gdImageGreen(image,the_color);
28
  int b=gdImageBlue(image,the_color);
29
  sprintf(buf, "{rgb,255:red,%i;green,%i;blue,%i}",r,g,b);
30
  return buf;
31
}
32
 
17574 bpr 33
static char *tikz_options (int the_color, int the_fill)
34
{
35
  static char buf[100];
36
  if (the_color == gdBrushed)
37
    the_color = tikz_brushColor;
17608 bpr 38
  sprintf (buf, "draw=%s,cap=round",tikz_color(the_color));
17574 bpr 39
  if (the_color != tikz_brushColor) strcat(buf, ",thin");
40
  if (the_fill == -1) strcat(buf, ",dashed");
41
  if (the_fill == 1)
17608 bpr 42
    sprintf(buf+strlen(buf), ",fill=%s", tikz_color(the_color));
17574 bpr 43
  return buf;
44
}
45
 
46
#define flip(y) (sizey-(y))
47
 
8010 bpr 48
/* bug in gdImageFillToBorder */
10 reyssat 49
 
8162 bpr 50
void patchgdImageFillToBorder (gdImagePtr im, int x, int y, int border, int color)
8076 bpr 51
{
12473 bpr 52
  if(x>=im->sx || x<0 || y>=im->sy || y<0) return;
53
  gdImageFillToBorder(im,x,y,border,color);
8076 bpr 54
}
55
 
8162 bpr 56
void patchgdImageFill (gdImagePtr im, int x, int y, int color)
8156 bpr 57
{
12473 bpr 58
  if(x>=im->sx || x<0 || y>=im->sy || y<0) return;
59
  gdImageFill(im,x,y,color);
8156 bpr 60
}
8076 bpr 61
 
9651 georgesk 62
#define DASHPIXELS 8
63
 
64
void myDashedLine(gdImagePtr im, int x1, int y1, int x2, int y2, int color){
65
  /**
66
   * emulates gdImageDashedLine with gdImageSetStyle and gdImageLine
67
   * GK: As gdImageDashedLine is slightly broken in latest libgd libraries,
68
   * GK: I implemented an emulation named "myDashedLine"
69
   **/
70
 
71
  int styleDashed[DASHPIXELS],i;
72
  for (i=0; i< DASHPIXELS/2; i++) styleDashed[i]=color;
73
  for (; i< DASHPIXELS; i++) styleDashed[i]=gdTransparent;
74
  gdImageSetStyle(im, styleDashed, DASHPIXELS);
75
  gdImageLine(im, x1, y1, x2, y2, gdStyled);
76
}
77
 
78
 
7675 bpr 79
/* File opening: with security */
10 reyssat 80
FILE *open4read(char *n)
81
{
12473 bpr 82
  char *p, *p1, *p2, namebuf[2048];
83
  int t;
84
  FILE *f;
85
  n=find_word_start(n);
86
  if(*n==0) return NULL;
87
  p=getenv("flydraw_filebase");
88
  p1=n+strlen(n)-4;if(p1<n || strcasecmp(p1,".gif")!=0) t=1; else t=0;
89
  if(p!=NULL && *p!=0) {
90
    char pbuf[MAX_LINELEN+1];
91
    snprintf(pbuf,sizeof(pbuf),"%s",p);
92
    p=find_word_start(pbuf); if(strstr(p,"..")!=NULL) return NULL;
93
    if(*n=='/' || strstr(n,"..")!=NULL) return NULL;
94
    /* prohibit unusual file/dir names */
95
    for(p1=p;*p1;p1++)
96
      if(!isalnum(*p1) && !isspace(*p1) && strchr("~_-/.",*p1)==NULL)
97
        return NULL;
98
    for(p1=n;*p1;p1++)
99
      if(!isalnum(*p1) && !isspace(*p1) && strchr("~_-/.",*p1)==NULL)
100
        return NULL;
101
    f=NULL;
102
    for(p1=p; *p1; p1=find_word_start(p2)) {
103
      p2=find_word_end(p1);
104
      if(*p2) *p2++=0;
105
      snprintf(namebuf,sizeof(namebuf),"%s/%s",p1,n);
106
      f=fopen(namebuf,"r"); if(f!=NULL) goto imgtype;
10 reyssat 107
    }
12473 bpr 108
    p1=getenv("w_wims_session");
109
    if(p1!=NULL && strncmp(n,"insert",6)==0) {
110
      snprintf(namebuf,sizeof(namebuf),"../s2/%s/%s",p1,n);
7675 bpr 111
      f=fopen(namebuf,"r");
10 reyssat 112
    }
12473 bpr 113
  }
114
  else {
115
    snprintf(namebuf,sizeof(namebuf),"%s",n);
116
    f=fopen(namebuf,"r");
117
  }
118
  imgtype:
119
  if(t && f!=NULL) {
120
    char tbuf[1024],sbuf[4096];
121
    fclose(f); f=NULL;
122
    p1=getenv("TMPDIR"); if(p1==NULL || *p1==0) p1=".";
123
    snprintf(tbuf,sizeof(tbuf),"%s/drawfile_.gif",p1);
124
    snprintf(sbuf,sizeof(sbuf),"convert %s %s",namebuf,tbuf);
125
    if (system(sbuf)) fly_error("system_failed");
126
      f=fopen(tbuf,"r");
127
  }
128
  return f;
10 reyssat 129
}
130
 
7675 bpr 131
/* Does nothing; just a comment. */
10 reyssat 132
void obj_comment(objparm *pm)
133
{
12473 bpr 134
  return;
10 reyssat 135
}
136
 
7675 bpr 137
/* define image size */
10 reyssat 138
void obj_size(objparm *pm)
139
{
12473 bpr 140
  sizex=rint(pm->pd[0]); sizey=rint(pm->pd[1]);
141
  if(sizex<0 || sizey<0 || sizex>MAX_SIZE || sizey>MAX_SIZE) {
142
    fly_error("bad_size"); return;
143
  }
144
  if(image!=NULL) {
145
    fly_error("size_already_defined"); return;
146
  }
147
  image=gdImageCreate(sizex,sizey);
17574 bpr 148
  if(tikz_file) fprintf(tikz_file,"\\clip (0,0) rectangle (%i, %i);\n", sizex, sizey);
12473 bpr 149
  if(image==NULL) fly_error("image_creation_failure");
150
  else {
151
    color_white=gdImageColorAllocate(image,255,255,255);
152
    color_black=gdImageColorAllocate(image,0,0,0);
153
    color_bounder=gdImageColorAllocate(image,1,2,3);
154
    color_frame=gdImageColorAllocate(image,254,254,254);
155
  }
10 reyssat 156
}
157
 
7675 bpr 158
/* new image */
10 reyssat 159
void obj_new(objparm *pm)
160
{
12473 bpr 161
  if(image) {
162
    gdImageDestroy(image);image=NULL;
163
  }
164
  if(pm->pcnt>=2) { obj_size(pm); gdImageRectangle(image,0,0,sizex-1,sizey-1,color_frame);}
165
  else sizex=sizey=0;
166
  saved=0;
10 reyssat 167
}
168
 
7675 bpr 169
/* new image */
10 reyssat 170
void obj_existing(objparm *pm)
171
{
12473 bpr 172
  FILE *inf;
173
  char *pp;
7615 bpr 174
 
12473 bpr 175
  if(image) {
176
    gdImageDestroy(image);image=NULL;
177
  }
178
  pp=find_word_start(pm->str);*find_word_end(pp)=0;
179
  inf=open4read(pp);
180
  if(inf==NULL) {
181
    fly_error("file_not_exist"); return;
182
  }
183
  image=gdImageCreateFromGif(inf); fclose(inf);
184
  if(image==NULL) {
185
    fly_error("bad_gif"); return;
186
  }
187
  sizex=image->sx; sizey=image->sy;
188
  saved=0;
10 reyssat 189
}
190
 
7675 bpr 191
/* solid line */
10 reyssat 192
void obj_line(objparm *pm)
193
{
12473 bpr 194
  scale(pm->pd,pm->p,2);
195
  gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
17574 bpr 196
  if (tikz_file)
197
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
198
      tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
12473 bpr 199
  if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10 reyssat 200
}
201
 
1024 bpr 202
void _obj_arrow(objparm *pm, int twoside)
10 reyssat 203
{
12473 bpr 204
  int l,xx,yy;
205
  gdPoint ii[3];
206
  double dx,dy,length,dd[6];
207
  scale(pm->pd,pm->p,2);
208
  xx=ii[0].x=pm->p[2];yy=ii[0].y=pm->p[3];
209
  l=pm->pd[4];if(l<0) l=0; if(l>200) l=200;
210
  scale2(pm->pd[0]-pm->pd[2],pm->pd[1]-pm->pd[3],&dx,&dy);
211
  length=sqrt(dx*dx+dy*dy);
212
  if(length<3 || l<5) goto stem;
213
  dd[0]=l*dx/length; dd[1]=l*dy/length;
214
  #define fat 0.27
215
  dd[2]=dd[0]+dd[1]*fat; dd[3]=dd[1]-dd[0]*fat;
216
  dd[4]=dd[0]-dd[1]*fat; dd[5]=dd[1]+dd[0]*fat;
217
  ii[1].x=rint(dd[2])+ii[0].x; ii[1].y=rint(dd[3])+ii[0].y;
218
  ii[2].x=rint(dd[4])+ii[0].x; ii[2].y=rint(dd[5])+ii[0].y;
219
  gdImageFilledPolygon(image, ii,3,pm->color[0]);
17578 bpr 220
  if(tikz_file)
221
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
222
      tikz_options(pm->color[0],1),ii[0].x,flip(ii[0].y),ii[1].x,flip(ii[1].y),ii[2].x,flip(ii[2].y));
223
  if(vimg_enable) vimg_polyline(scale_buf,3,1);
12473 bpr 224
  xx=rint(dd[0])+ii[0].x;yy=rint(dd[1])+ii[0].y;
225
  if(twoside) {
226
    ii[0].x=pm->p[0]; ii[0].y=pm->p[1];
227
    ii[1].x=-rint(dd[2])+ii[0].x; ii[1].y=-rint(dd[3])+ii[0].y;
228
    ii[2].x=-rint(dd[4])+ii[0].x; ii[2].y=-rint(dd[5])+ii[0].y;
8163 bpr 229
    gdImageFilledPolygon(image, ii,3,pm->color[0]);
17578 bpr 230
  if(tikz_file)
231
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
232
      tikz_options(pm->color[0],1),ii[0].x,flip(ii[0].y),ii[1].x,flip(ii[1].y),ii[2].x,flip(ii[2].y));
12473 bpr 233
  }
234
  stem: if(pm->fill)
235
    myDashedLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]);
236
  else
237
    gdImageLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]);
17578 bpr 238
  if(tikz_file)
239
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
17584 bpr 240
      tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),xx,flip(yy));
12473 bpr 241
  if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10 reyssat 242
}
243
 
7675 bpr 244
/* Arrow */
1024 bpr 245
void obj_arrow(objparm *pm)
246
{
12473 bpr 247
  _obj_arrow(pm,0);
1024 bpr 248
}
249
 
7675 bpr 250
/* 2-sided arrow */
1024 bpr 251
void obj_arrow2(objparm *pm)
252
{
12473 bpr 253
   _obj_arrow(pm,1);
1024 bpr 254
}
255
 
7675 bpr 256
/* horizontal line */
10 reyssat 257
void obj_hline(objparm *pm)
258
{
12473 bpr 259
  scale(pm->pd,pm->p,1);
260
  if(pm->fill)
261
    myDashedLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]);
262
  else
263
    gdImageLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]);
17574 bpr 264
  if (tikz_file)
265
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
266
      tikz_options(pm->color[0],pm->fill),0,flip(pm->p[1]),sizex,flip(pm->p[1]));
10 reyssat 267
}
268
 
17574 bpr 269
/* tikzfile */
270
void obj_tikzfile(objparm *pm)
271
{
272
  char *p;
273
  if(tikz_file){
274
    fprintf(tikz_file,"\\end{tikzpicture}\n\\end{document}\n");
275
    fclose(tikz_file);
276
  }
277
  p=find_word_start(pm->str); *find_word_end(p)=0;
278
  snprintf(tikzfilename,sizeof(tikzfilename),"%s",p);
279
  tikz_file=fopen(tikzfilename,"w");
280
  if(!tikz_file)
281
    fly_error("tikz_nopen");
17608 bpr 282
  fprintf(tikz_file,"\\documentclass\[11pt,a5paper]{article}\n\\usepackage{tikz}\\usepackage{geometry}\\geometry{paperheight=320px,\npaperwidth=320px, \ntop=10px, \nleft=2px, \nbottom=2px, \nright=2px,\n}\\pagestyle{empty}\n\\begin{document}\n\\begin{tikzpicture}\[scale=0.0254]\n");
17574 bpr 283
}
284
 
7675 bpr 285
/* vertical line */
10 reyssat 286
void obj_vline(objparm *pm)
287
{
12473 bpr 288
  scale(pm->pd,pm->p,1);
289
  if(pm->fill)
290
    myDashedLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]);
291
  else
292
    gdImageLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]);
17574 bpr 293
  if (tikz_file)
294
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
295
      tikz_options(pm->color[0],pm->fill),pm->p[0],0,pm->p[0],sizey);
10 reyssat 296
}
297
 
7675 bpr 298
/* dashed line */
10 reyssat 299
void obj_dline(objparm *pm)
300
{
12473 bpr 301
  scale(pm->pd,pm->p,2);
302
  myDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], pm->color[0]);
17574 bpr 303
  if (tikz_file)
304
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
305
      tikz_options(pm->color[0],-1),
306
      pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
10 reyssat 307
}
308
 
7675 bpr 309
/* parallel lines.
310
 * x1,y1,x2,y2,xv,yv,n,color */
10 reyssat 311
void obj_parallel(objparm *pm)
312
{
12473 bpr 313
  int i, n, xi,yi;
314
  double xv,yv;
315
  n=pm->pd[6]; if(n<0) return; if(n>256) n=256;
316
  scale(pm->pd,pm->p,3);
317
  scale2(pm->pd[4],pm->pd[5],&xv,&yv);
318
  for(i=0;i<n;i++) {
319
    xi=rint(i*xv); yi=rint(i*yv);
320
    gdImageLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi,
321
              pm->color[0]);
17574 bpr 322
    if (tikz_file)
323
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
324
        tikz_options(pm->color[0],pm->fill),
325
        pm->p[0]+xi,flip(pm->p[1]+yi),pm->p[2]+xi,flip(pm->p[3]+yi));
12473 bpr 326
    if(vimg_enable) vimg_line(scale_buf[0]+i*(scale_buf[4]-transx),
327
        scale_buf[1]+i*(scale_buf[5]-transy),
328
        scale_buf[2]+i*(scale_buf[4]-transx),
329
        scale_buf[3]+i*(scale_buf[5]-transy));
330
  }
10 reyssat 331
}
332
 
7675 bpr 333
/* rectangle */
10 reyssat 334
void obj_rect(objparm *pm)
335
{
12473 bpr 336
  int x1,y1,x2,y2;
337
  scale(pm->pd,pm->p,2);
338
  x1=min(pm->p[0],pm->p[2]); x2=max(pm->p[0],pm->p[2]);
339
  y1=min(pm->p[1],pm->p[3]); y2=max(pm->p[1],pm->p[3]);
340
  if(pm->fill)
341
    gdImageFilledRectangle(image,x1,y1,x2,y2,pm->color[0]);
342
  else
343
    gdImageRectangle(image,x1,y1,x2,y2,pm->color[0]);
17584 bpr 344
  if(tikz_file)
345
    fprintf(tikz_file,
346
      "\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
347
      tikz_options(pm->color[0],pm->fill),x1,flip(y1),x2,flip(y2));
12473 bpr 348
  if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10 reyssat 349
}
350
 
7675 bpr 351
/* square */
10 reyssat 352
void obj_square(objparm *pm)
353
{
12473 bpr 354
  int w,h;
355
  scale(pm->pd,pm->p,1);
356
  w=rint(pm->pd[2]); h=rint(pm->pd[2]);
357
  if(pm->fill)
358
    gdImageFilledRectangle(image,pm->p[0],pm->p[1],
359
               pm->p[0]+w,pm->p[1]+h,pm->color[0]);
360
  else
361
    gdImageRectangle(image,pm->p[0],pm->p[1],
362
               pm->p[0]+w,pm->p[1]+h,pm->color[0]);
17574 bpr 363
  if(tikz_file){
364
    fprintf(tikz_file,
365
      "\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
366
      tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),
367
      pm->p[0]+w,flip(pm->p[1]+h));
368
  }
12473 bpr 369
  if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],
370
                      scale_buf[0]+pm->pd[2],scale_buf[1]+pm->pd[2]);
10 reyssat 371
}
372
 
7675 bpr 373
/* triangle */
10 reyssat 374
void obj_triangle(objparm *pm)
375
{
12473 bpr 376
  scale(pm->pd,pm->p,3);
377
  if(pm->fill)
378
    gdImageFilledPolygon(image,(gdPointPtr) pm->p,3,pm->color[0]);
379
  else
380
    gdImagePolygon(image,(gdPointPtr) pm->p,3,pm->color[0]);
17574 bpr 381
  if (tikz_file)
382
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
383
      tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]),pm->p[4],flip(pm->p[5]));
12473 bpr 384
  if(vimg_enable) vimg_polyline(scale_buf,3,1);
10 reyssat 385
}
386
 
7675 bpr 387
/* polygon */
10 reyssat 388
void obj_poly(objparm *pm)
389
{
17574 bpr 390
  int cnt,i;
12473 bpr 391
  cnt=(pm->pcnt)/2;
392
  scale(pm->pd,pm->p,cnt);
393
  if(pm->fill)
394
    gdImageFilledPolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]);
395
  else
396
    gdImagePolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]);
17574 bpr 397
    if(tikz_file)
398
      for (i= 0; i<cnt; i++)
399
        fprintf(tikz_file,"\\draw\[%s] (%i,%i)--(%i,%i);\n",
400
        tikz_options(pm->color[0],pm->fill),
401
        pm->p[2*i],flip(pm->p[2*i+1]),
402
        pm->p[2*((i+1)%cnt)],flip(pm->p[2*((i+1)%cnt)+1]));
12473 bpr 403
  if(vimg_enable) vimg_polyline(scale_buf,cnt,1);
10 reyssat 404
}
405
 
7675 bpr 406
/* rays */
10 reyssat 407
void obj_rays(objparm *pm)
408
{
12473 bpr 409
  int i, n;
410
  n=(pm->pcnt)/2;
411
  scale(pm->pd,pm->p,n);
412
  for(i=2;i<2*n;i+=2) {
413
    gdImageLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]);
17574 bpr 414
    if (tikz_file)
415
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
416
        tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[i],flip(pm->p[i+1]));
12473 bpr 417
    if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],
418
                        scale_buf[i],scale_buf[i+1]);
419
  }
10 reyssat 420
}
8414 bpr 421
/* crosshair */
422
void obj_crosshair(objparm *pm)
423
{
12473 bpr 424
  scale(pm->pd,pm->p,2);
425
  gdImageLine(image,pm->p[0]+width2,pm->p[1]+width2,pm->p[0]-width2,pm->p[1]-width2,pm->color[0]);
426
  gdImageLine(image,pm->p[0]-width2,pm->p[1]+width2,pm->p[0]+width2,pm->p[1]-width2,pm->color[0]);
17574 bpr 427
  if (tikz_file){
428
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
429
      tikz_options(pm->color[0],pm->fill),pm->p[0]+width2,flip(pm->p[1]+width2),pm->p[0]-width2,flip(pm->p[1]-width2));
430
    fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
431
      tikz_options(pm->color[0],pm->fill),pm->p[0]-width2,flip(pm->p[1]+width2),pm->p[0]+width2,flip(pm->p[1]-width2));
432
  }
8414 bpr 433
}
434
/* crosshairs */
10 reyssat 435
 
8414 bpr 436
void obj_crosshairs(objparm *pm)
437
{
12473 bpr 438
  int i, n;
439
  n=(pm->pcnt)/2;
440
  scale(pm->pd,pm->p,n);
441
  for(i=0;i<2*n;i+=2) {
442
    gdImageLine(image,pm->p[i]+width2,pm->p[i+1]+width2,pm->p[i]-width2,pm->p[i+1]-width2,pm->color[0]);
443
    gdImageLine(image,pm->p[i]-width2,pm->p[i+1]+width2,pm->p[i]+width2,pm->p[i+1]-width2,pm->color[0]);
17574 bpr 444
    if (tikz_file){
445
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
446
        tikz_options(pm->color[0],pm->fill),pm->p[i]+width2,flip(pm->p[i+1]+width2),pm->p[i]-width2,flip(pm->p[i+1]-width2));
447
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
448
        tikz_options(pm->color[0],pm->fill),pm->p[i]-width2,flip(pm->p[i+1]+width2),pm->p[i]+width2,flip(pm->p[i+1]-width2));
449
    }
12473 bpr 450
  }
8414 bpr 451
}
452
 
453
 
7675 bpr 454
/* segments */
10 reyssat 455
void obj_lines(objparm *pm)
456
{
12473 bpr 457
  int i, n;
458
  n=(pm->pcnt)/2;
459
  scale(pm->pd,pm->p,n);
17574 bpr 460
  for(i=2;i<2*n;i+=2){
12473 bpr 461
    gdImageLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
17574 bpr 462
    if (tikz_file){
463
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
464
        tikz_options(pm->color[0],pm->fill),pm->p[i-2],flip(pm->p[i-1]),pm->p[i],flip(pm->p[i+1]));
465
    }
466
    if(vimg_enable) vimg_polyline(scale_buf,n,0);
467
  }
10 reyssat 468
}
16344 bpr 469
/*segments from x1,y1 to x2,y2, x3,y3 to x4,y4, etc */
470
void obj_segments(objparm *pm)
471
{
472
  int i, n;
473
  n=(pm->pcnt)/4;
474
  scale(pm->pd,pm->p,2*n);
17574 bpr 475
  for(i=0;i<4*n;i+=4){
16344 bpr 476
    gdImageLine(image,pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],pm->color[0]);
17574 bpr 477
    if (tikz_file){
478
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
479
        tikz_options(pm->color[0],pm->fill),pm->p[i],flip(pm->p[i+1]),pm->p[i+2],flip(pm->p[i+3]));
480
    }
481
  }
16344 bpr 482
}
7675 bpr 483
/* segments */
10 reyssat 484
void obj_dlines(objparm *pm)
485
{
12473 bpr 486
  int i, n;
487
  n=(pm->pcnt)/2;
488
  scale(pm->pd,pm->p,n);
489
  for(i=2;i<2*n;i+=2)
490
    myDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
17574 bpr 491
    if (tikz_file){
492
      fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
493
        tikz_options(pm->color[0],pm->fill),pm->p[i-2],flip(pm->p[i-1]),pm->p[i],flip(pm->p[i+1]));
494
    }
12473 bpr 495
  if(vimg_enable) vimg_polyline(scale_buf,n,0);
10 reyssat 496
}
497
 
7675 bpr 498
/* points */
10 reyssat 499
void obj_points(objparm *pm)
500
{
12473 bpr 501
  int i, n;
502
  n=(pm->pcnt)/2;
503
  scale(pm->pd,pm->p,n);
17574 bpr 504
  for(i=0;i<2*n;i+=2){
12473 bpr 505
    gdImageSetPixel(image,pm->p[i],pm->p[i+1],pm->color[0]);
17574 bpr 506
    if(tikz_file) fprintf(tikz_file, "\\draw\[%s] (%i, %i) circle (0pt);\n",
507
      tikz_options(pm->color[0],pm->fill),pm->p[i],flip(pm->p[i+1]));
508
  }
10 reyssat 509
}
510
 
7675 bpr 511
/* lattice.
512
 * x0,y0,xv1,yv1,xv2,yv2,n1,n2,color */
10 reyssat 513
void obj_lattice(objparm *pm)
514
{
12473 bpr 515
  int n1,n2,i1,i2,xi1,yi1,xi2,yi2;
516
  double xv1,xv2,yv1,yv2;
517
  n1=pm->pd[6];n2=pm->pd[7]; if(n1<0 || n2<0) return;
518
  if(n1>256) n1=256;
519
  if(n2>256) n2=256;
520
  scale(pm->pd,pm->p,1);
521
  scale2(pm->pd[2],pm->pd[3],&xv1,&yv1);
522
  scale2(pm->pd[4],pm->pd[5],&xv2,&yv2);
523
  for(i1=0;i1<n1;i1++) {
524
    xi1=rint(i1*xv1)+pm->p[0]; yi1=rint(i1*yv1)+pm->p[1];
525
    for(i2=0;i2<n2;i2++) {
526
      xi2=i2*xv2+xi1;yi2=i2*yv2+yi1;
527
      gdImageSetPixel(image,xi2,yi2,pm->color[0]);
17574 bpr 528
      if(tikz_file) fprintf(tikz_file,"\\draw[%s] (%i,%i) circle (0pt);\n",
529
        tikz_options(pm->color[0],0),xi2,flip(yi2));
10 reyssat 530
    }
12473 bpr 531
  }
10 reyssat 532
}
533
 
7675 bpr 534
/* arc */
10 reyssat 535
void obj_arc(objparm *pm)
536
{
12473 bpr 537
  scale(pm->pd,pm->p,1);
538
  pm->p[2]=rint(pm->pd[2]*xscale); pm->p[3]=rint(pm->pd[3]*yscale);
539
  gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],
540
           pm->pd[4],pm->pd[5],pm->color[0]);
17574 bpr 541
  if(tikz_file) {
542
      fprintf(tikz_file,
543
    "\\draw\[%s, domain=%f:%f] plot ({%i+%f*cos(\\x)}, {%i+%f*sin(\\x)});\n",
544
    tikz_options(pm->color[0],pm->fill),
545
      pm->pd[4],pm->pd[5],pm->p[0],pm->p[2]*0.5,flip(pm->p[1]),pm->p[3]*(-0.5));
546
  }
547
  /*FIXME echelle mauvaise*/
12473 bpr 548
  if(vimg_enable) vimg_arc(scale_buf[0],scale_buf[1],
549
                     0.5*pm->pd[2],0.5*pm->pd[3],pm->pd[4],pm->pd[5]);
10 reyssat 550
}
551
 
7675 bpr 552
/* Ellipse: centre 0,1, width 2, hight 3, color 4,5,6 */
10 reyssat 553
void obj_ellipse(objparm *pm)
554
{
12473 bpr 555
  scale(pm->pd,pm->p,1);
556
  pm->p[2]=rint(pm->pd[2]*xscale); pm->p[3]=rint(pm->pd[3]*yscale);
557
  if(pm->fill) {
558
    gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,
559
             color_bounder);
560
    patchgdImageFillToBorder(image,pm->p[0],pm->p[1],
561
                    color_bounder,pm->color[0]);
562
  }
563
  gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]);
17574 bpr 564
  if(tikz_file) fprintf(tikz_file,"\\draw\[%s] (%i,%i) ellipse (%f and %f);\n\n",
565
    tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2]/2.,pm->p[3]/2.);
566
  if(vimg_enable) vimg_ellipse(scale_buf[0],scale_buf[1],0.5*pm->pd[2],0.5*pm->pd[3]);
10 reyssat 567
}
568
 
7675 bpr 569
/* Circle */
10 reyssat 570
void obj_circle(objparm *pm)
571
{
12473 bpr 572
  scale(pm->pd,pm->p,1);
573
  pm->p[2]=rint(pm->pd[2]); pm->p[3]=rint(pm->pd[2]);
574
  if(pm->fill) {
575
    gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,
576
             color_bounder);
577
    patchgdImageFillToBorder(image,pm->p[0],pm->p[1],
578
                    color_bounder,pm->color[0]);
579
  }
580
  gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]);
17574 bpr 581
  if(tikz_file) fprintf(tikz_file, "\\draw\[%s] (%i, %i) circle (%f);\n",
582
      tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2]/2.);
10 reyssat 583
}
584
 
17599 bpr 585
typedef enum tikz_fill_options {grille, points, hatch, dhatch} tfo;
586
int compar(const void *a, const void *b) {return *(int *)b - *(int *)a;}
587
 
588
void tikz_fill(int x, int y, int nx, int ny, int the_color, tfo opt)
589
{
590
  char *to = tikz_options(the_color,1);
591
  int numpix=sizex*sizey, top = 0, a, cy, lx, rx, seed, nt,ct=0, ct2=0;
592
  int *stack = xmalloc(numpix*sizeof(int));
593
  int *stack2 = xmalloc(numpix*sizeof(int));
594
  if (nx==0) nx=1; if (ny==0) ny=1; nt = abs(nx*ny);
595
  seed = gdImageGetPixel(image,x,y);
596
  char *check = xmalloc(numpix);
597
  while (numpix--) check[numpix]=0;
598
  a=x+y*sizex;
599
  check[a]=1;
600
  stack[top++]=a;
601
  while(top)
602
    {
603
      a = stack[--top];
604
      x = a%sizex; y = a/sizex;
605
      if (gdImageGetPixel(image,x,y) != seed) continue;
606
      if (x>0 && !check[a-1]) {check[a-1]=1; stack[top++]=a-1;}
607
      if (x+1<sizex && !check[a+1]) {check[a+1]=1; stack[top++]=a+1;}
608
      if (y>0 && !check[a-sizex]) {check[a-sizex]=1; stack[top++]=a-sizex;}
609
      if (y+1<sizey && !check[a+sizex]) {check[a+sizex]=1; stack[top++]=a+sizex;}
610
      switch(opt)
611
        {
612
        case grille: if(((x%nx)!=(nx/2))&&((y%ny)!=(ny/2))) continue; break;
613
        case points: if(x%nx!=nx/2||y%ny!=ny/2) continue; break;
614
        case hatch: if(abs((ny*x-nx*y)%nt)!=nt/2) continue; break;
17608 bpr 615
        case dhatch: if((ny*x+nx*y)%nt!=nt/2 && abs((ny*x-nx*y)%nt)!=nt/2) continue; break;
17599 bpr 616
        default: break;
617
        }
618
      stack2[ct++]=a;
619
    }
620
  free(stack);
621
  free(check);
622
  if (ct==0) return;
623
  qsort(stack2, ct, sizeof(int), compar);
624
  cy=-1;
625
  while (ct--)
626
    {
627
      a = stack2[ct];
628
      x = a%sizex; y = a/sizex;
629
      if (y != cy || x != rx+1)
630
      {
631
        if (cy >= 0)
632
          fprintf(tikz_file,
633
                  "\\draw\[%s] (%.2f,%.2f) rectangle (%.2f,%.2f);\n",
634
                  to, lx-0.0,flip(cy-0.0),rx+0.0,flip(cy+0.0));
635
        cy = y;
636
        lx = rx = x;
637
        ct2++;
638
      }
639
      else
640
        rx++;
641
    }
642
  fprintf(tikz_file,
643
          "\\draw\[%s] (%.2f,%.2f) rectangle (%.2f,%.2f);\n",
644
          to, lx-0.0,flip(cy-0.0),rx+0.0,flip(cy+0.0));
645
  free(stack2);
646
}
647
 
7675 bpr 648
/* flood fill */
10 reyssat 649
void obj_fill(objparm *pm)
650
{
12473 bpr 651
  scale(pm->pd,pm->p,1);
17599 bpr 652
  if (tikz_file) tikz_fill(pm->p[0],pm->p[1],1,1,pm->color[0],grille);
12473 bpr 653
  patchgdImageFill(image,pm->p[0],pm->p[1],pm->color[0]);
10 reyssat 654
}
655
 
7675 bpr 656
/* flood fill to border*/
10 reyssat 657
void obj_fillb(objparm *pm)
658
{
12473 bpr 659
  scale(pm->pd,pm->p,1);
17599 bpr 660
  if (tikz_file) tikz_fill(pm->p[0],pm->p[1],1,1,pm->color[0],grille);
12473 bpr 661
  patchgdImageFillToBorder(image,pm->p[0],pm->p[1],pm->color[0],pm->color[1]);
10 reyssat 662
}
663
 
664
gdImagePtr himg;
665
 
666
int makehatchimage(int x, int y, int px, int py, int col)
667
{
12473 bpr 668
  int c1,c2,r,g,b;
669
  gdImagePtr saveimg;
670
  himg=gdImageCreate(x,y);
671
  c1=gdImageGetPixel(image,px,py);
672
  r=gdImageRed(image,c1); g=gdImageGreen(image,c1); b=gdImageBlue(image,c1);
673
  if(r>=255) r--; else r++; if(g>=255) g--; else g++; if(b>=255) b--; else b++;
674
  c1=gdImageColorAllocate(himg,r,g,b);
675
  r=gdImageRed(image,col); g=gdImageGreen(image,col); b=gdImageBlue(image,col);
676
  c2=gdImageColorAllocate(himg,r,g,b);
677
  if(width>1) {
678
    savew=-1; saveimg=image;
679
    image=himg; c2=widthcolor(width,c2); image=saveimg;
680
    c2=gdBrushed; savew=-1;
681
  }
682
  return c2;
10 reyssat 683
}
684
 
7675 bpr 685
/* flood fill with hatching */
10 reyssat 686
void obj_hatchfill(objparm *pm)
687
{
12473 bpr 688
  int nx,ny,ax,ay, dir, c;
689
  scale(pm->pd,pm->p,1);
690
  nx=pm->pd[2]; ny=pm->pd[3]; ax=abs(nx); ay=abs(ny);
691
  if(nx==0 && ny==0) {fly_error("bad displacement vector"); return;}
692
  if((nx>0 && ny>0) || (nx<0 && ny<0)) dir=1; else dir=-1;
693
  if(ax==0) {ax=100; dir=2;}
694
  if(ay==0) {ay=100; dir=3;}
695
  c=makehatchimage(ax,ay,pm->p[0],pm->p[1],pm->color[0]);
696
  switch(dir) {
697
    case -1: {
698
      gdImageLine(himg,0,ay-1,ax-1,0,c);
699
      if(width>1) {
700
        gdImageLine(himg,-ax,ay-1,-1,0,c);
701
        gdImageLine(himg,ax,ay-1,2*ax-1,0,c);
702
        gdImageLine(himg,0,-1,ax-1,-ay,c);
703
        gdImageLine(himg,0,2*ay-1,ax-1,ay,c);
7675 bpr 704
      }
12473 bpr 705
      break;
706
    }
707
    case 1: {
708
      gdImageLine(himg,0,0,ax-1,ay-1,c);
709
      if(width>1) {
710
        gdImageLine(himg,-ax,0,-1,ay-1,c);
711
        gdImageLine(himg,ax,0,2*ax-1,ay-1,c);
712
        gdImageLine(himg,0,-ay,ax-1,-1,c);
713
        gdImageLine(himg,0,ay,ax-1,2*ay-1,c);
7675 bpr 714
      }
12473 bpr 715
      break;
716
    }
717
    case 2: gdImageLine(himg,0,ay/2,ax-1,ay/2,c); break;
17574 bpr 718
    case 3: gdImageLine(himg,ax/2,0,ax/2,ay-1,c); break;
12473 bpr 719
  }
17599 bpr 720
  if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,pm->color[0],hatch);
12473 bpr 721
  gdImageSetTile(image,himg);
722
  patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
723
  gdImageDestroy(himg);
724
  if(tiled) gdImageSetTile(image,tileimg);
10 reyssat 725
}
726
 
7675 bpr 727
/* flood fill with grid */
10 reyssat 728
void obj_gridfill(objparm *pm)
729
{
12473 bpr 730
  int nx,ny, c;
731
  scale(pm->pd,pm->p,1);
732
  nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
733
  if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
734
  c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17599 bpr 735
  if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,pm->color[0],grille);
12473 bpr 736
  gdImageLine(himg,0,ny/2,nx-1,ny/2,c); gdImageLine(himg,nx/2,0,nx/2,ny-1,c);
737
  gdImageSetTile(image,himg);
738
  patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
739
  gdImageDestroy(himg);
740
  if(tiled) gdImageSetTile(image,tileimg);
10 reyssat 741
}
742
 
7675 bpr 743
/* flood fill with double hatching */
10 reyssat 744
void obj_diafill(objparm *pm)
745
{
12473 bpr 746
  int nx,ny, c;
747
  scale(pm->pd,pm->p,1);
748
  nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
749
  if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
750
  c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17599 bpr 751
  if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,pm->color[0],dhatch);
12473 bpr 752
  gdImageLine(himg,0,0,nx-1,ny-1,c); gdImageLine(himg,0,ny-1,nx-1,0,c);
753
  gdImageSetTile(image,himg);
754
  patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
755
  gdImageDestroy(himg);
756
  if(tiled) gdImageSetTile(image,tileimg);
10 reyssat 757
}
758
 
17599 bpr 759
/* flood fill with dots */
10 reyssat 760
void obj_dotfill(objparm *pm)
761
{
12473 bpr 762
  int nx,ny, c;
763
  scale(pm->pd,pm->p,1);
764
  nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
765
  if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
766
  c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17599 bpr 767
  if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,pm->color[0],points);
12473 bpr 768
  gdImageSetPixel(himg,nx/2,ny/2,c);
769
  gdImageSetTile(image,himg);
770
  patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
771
  gdImageDestroy(himg);
772
  if(tiled) gdImageSetTile(image,tileimg);
10 reyssat 773
}
774
 
775
struct {
12473 bpr 776
  char *name;
777
  gdFontPtr *fpt;
10 reyssat 778
} fonttab[]={
12473 bpr 779
  {"tiny",      &gdFontTiny},
780
  {"small",      &gdFontSmall},
781
  {"medium",&gdFontMediumBold},
782
  {"large",      &gdFontLarge},
783
  {"giant",      &gdFontGiant},
784
  {"huge",      &gdFontGiant}
10 reyssat 785
};
786
 
787
#define fonttab_no (sizeof(fonttab)/sizeof(fonttab[0]))
788
 
7675 bpr 789
/* string */
10 reyssat 790
void obj_string(objparm *pm)
791
{
12473 bpr 792
  char *pp, *pe, *p2;
793
  int i;
794
  pp=pm->str; pe=strchr(pp,','); if(pe==NULL) {
795
    fly_error("too_few_parms"); return;
796
  }
797
  *pe++=0; pp=find_word_start(pp); *find_word_end(pp)=0;
798
  pe=find_word_start(pe); strip_trailing_spaces(pe);
799
  if(*pp) {
800
    for(i=0;i<fonttab_no && strcmp(pp,fonttab[i].name)!=0; i++);
801
    if(i>=fonttab_no) i=1;
802
  }
803
  else i=1;
804
  scale(pm->pd,pm->p,1);
805
  if(*pe=='"') {
806
    p2=strchr(pe+1,'"');
807
    if(p2 && *(p2+1)==0) {*p2=0; pe++;}
808
  }
17585 bpr 809
  if(pm->fill){
12473 bpr 810
    gdImageStringUp(image,*(fonttab[i].fpt),pm->p[0],pm->p[1], (unsigned char*) pe,
811
        pm->color[0]);
17608 bpr 812
    if(tikz_file) fprintf(tikz_file,"\\draw (%i,%i) node[font=\\%s,rotate=90,color=%s,anchor=north west,inner sep=0pt] {%s};\n",
813
      pm->p[0],flip(pm->p[1]),fonttab[i].name,tikz_color(pm->color[0]),(unsigned char*) pe);
17585 bpr 814
  }
815
  else {
12473 bpr 816
    gdImageString(image,*(fonttab[i].fpt),pm->p[0],pm->p[1], (unsigned char*) pe,
817
        pm->color[0]);
17608 bpr 818
    if(tikz_file) fprintf(tikz_file,"\\draw (%i,%i) node[font=\\%s,color=%s,anchor=north west,inner sep=0pt] {%s};\n",
819
      pm->p[0],flip(pm->p[1]),fonttab[i].name,tikz_color(pm->color[0]),(unsigned char*) pe);
17585 bpr 820
  }
10 reyssat 821
}
17585 bpr 822
/*FIXME; giant does not exist in tikz and ... samething as huge */
7675 bpr 823
/* point */
10 reyssat 824
void obj_point(objparm *pm)
825
{
12473 bpr 826
  scale(pm->pd,pm->p,1);
827
  gdImageSetPixel(image,pm->p[0],pm->p[1],pm->color[0]);
17574 bpr 828
  if(tikz_file) fprintf(tikz_file,"\\draw[%s] (%i,%i) circle (0pt);\n",
829
    tikz_options(pm->color[0],0),pm->p[0],flip(pm->p[1]));
10 reyssat 830
}
831
 
7675 bpr 832
/* copy an image file */
10 reyssat 833
void obj_copy(objparm *pm)
834
{
12473 bpr 835
  char *pp;
836
  FILE *inf;
837
  gdImagePtr insimg;
7615 bpr 838
 
12473 bpr 839
  pp=find_word_start(pm->str);*find_word_end(pp)=0;
840
  inf=open4read(pp);
841
  if(inf==NULL) {
17599 bpr 842
    fly_error("file_does_not_exist"); return;
12473 bpr 843
  }
844
  insimg=gdImageCreateFromGif(inf); fclose(inf);
845
  if(insimg==NULL) {
846
    fly_error("bad_gif"); return;
847
  }
848
  scale(pm->pd,pm->p,1);
849
  if(pm->pd[2]<0 && pm->pd[3]<0 && pm->pd[4]<0 && pm->pd[5]<0)
850
    gdImageCopy(image,insimg,pm->p[0],pm->p[1],0,0,
851
            insimg->sx,insimg->sy);
852
  else
853
    gdImageCopy(image,insimg,pm->p[0],pm->p[1],pm->pd[2],pm->pd[3],
854
            pm->pd[4]-pm->pd[2],pm->pd[5]-pm->pd[3]);
17587 bpr 855
  if(tikz_file) fprintf(tikz_file,
856
    "\\node at (%i,%i) {\\includegraphics\[width=.05\\linewidth]{%s}};\n",
857
      pm->p[0],flip(pm->p[1]),pm->str);
858
    gdImageDestroy(insimg);
859
/*FIXME position non correcte; on ne peut pas utiliser une image gif */
10 reyssat 860
}
861
 
7675 bpr 862
/* copy an image file, with resizing */
10 reyssat 863
void obj_copyresize(objparm *pm)
864
{
12473 bpr 865
  char *pp;
866
  FILE *inf;
867
  gdImagePtr insimg;
7615 bpr 868
 
12473 bpr 869
  pp=find_word_start(pm->str);*find_word_end(pp)=0;
870
  inf=open4read(pp);
871
  if(inf==NULL) {
872
    fly_error("file_not_found"); return;
873
  }
874
  insimg=gdImageCreateFromGif(inf); fclose(inf);
875
  if(insimg==NULL) {
876
    fly_error("bad_gif"); return;
877
  }
878
  scale(pm->pd+4,pm->p+4,2);
879
  if(pm->pd[0]<0 && pm->pd[1]<0 && pm->pd[2]<0 && pm->pd[3]<0)
880
    gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],0,0,
881
                 pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1,
882
                 insimg->sx,insimg->sy);
883
  else
884
    gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],pm->pd[0],pm->pd[1],
885
                 pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1,
886
                 pm->pd[2]-pm->pd[0]+1,pm->pd[3]-pm->pd[1]+1);
887
  gdImageDestroy(insimg);
10 reyssat 888
}
889
 
7675 bpr 890
/* set brush or tile */
10 reyssat 891
void obj_setbrush(objparm *pm)
892
{
12473 bpr 893
  char *pp;
894
  FILE *inf;
895
  gdImagePtr insimg;
10 reyssat 896
 
12473 bpr 897
  pp=find_word_start(pm->str); *find_word_end(pp)=0;
898
  inf=open4read(pp); if(inf==NULL) {
899
    fly_error("file_not_found"); return;
900
  }
901
  insimg=gdImageCreateFromGif(inf); fclose(inf);
902
  if(insimg==NULL) {
903
    fly_error("bad_gif"); return;
904
  }
905
  if(pm->fill) {
906
    gdImageSetTile(image,insimg); tiled=1; tileimg=insimg;
907
  }
908
  else {
909
    gdImageSetBrush(image,insimg);brushed=1; brushimg=insimg;
910
  }
10 reyssat 911
}
912
 
7675 bpr 913
/* kill brush */
10 reyssat 914
void obj_killbrush(objparm *pm)
915
{
12473 bpr 916
  if(brushimg) gdImageDestroy(brushimg);
917
  brushed=0; brushimg=NULL;
10 reyssat 918
}
919
 
7675 bpr 920
/* kill tile */
10 reyssat 921
void obj_killtile(objparm *pm)
922
{
12473 bpr 923
  if(tileimg) gdImageDestroy(tileimg);
924
  tiled=0; tileimg=NULL;
10 reyssat 925
}
926
 
7675 bpr 927
/* set style */
10 reyssat 928
void obj_setstyle(objparm *pm)
929
{
12473 bpr 930
  int i,t;
931
  t=pm->pcnt/3; if(t<=0) {
932
    fly_error("too_few_parms"); return;
933
  }
934
  for(i=0;i<t;i++) {
935
    if(pm->pd[3*i]<0 || pm->pd[3*i+1]<0 || pm->pd[3*i+2]<0)
936
      pm->p[i]=gdTransparent;
937
    else
938
      pm->p[i]=getcolor(pm->pd[3*i],pm->pd[3*i+1],pm->pd[3*i+2]);
939
  }
940
  gdImageSetStyle(image,pm->p,t); styled=1;
10 reyssat 941
}
942
 
7675 bpr 943
/* kill style */
10 reyssat 944
void obj_killstyle(objparm *pm)
945
{
12473 bpr 946
  styled=0;
10 reyssat 947
}
948
 
7675 bpr 949
/* set transparent */
10 reyssat 950
void obj_transp(objparm *pm)
951
{
12473 bpr 952
  gdImageColorTransparent(image,pm->color[0]);
10 reyssat 953
}
954
 
7675 bpr 955
/* set interlace */
10 reyssat 956
void obj_interlace(objparm *pm)
957
{
12473 bpr 958
  gdImageInterlace(image,1);
10 reyssat 959
}
960
 
7675 bpr 961
/* set linewidth */
10 reyssat 962
void obj_linewidth(objparm *pm)
963
{
12473 bpr 964
  if(pm->pd[0]<1 || pm->pd[0]>255) fly_error("bad_parms");
17574 bpr 965
  width=pm->pd[0];
966
  if(tikz_file) fprintf(tikz_file,"\\pgfsetlinewidth{%f}\n",width*0.7);
10 reyssat 967
}
968
 
8414 bpr 969
/* set crosshairsize */
970
void obj_crosshairsize(objparm *pm)
971
{
12473 bpr 972
  if(pm->pd[0]<1 || pm->pd[0]>255) fly_error("bad_parms");
973
  else width2=pm->pd[0];
8414 bpr 974
}
975
 
7675 bpr 976
/* set x range */
10 reyssat 977
void obj_xrange(objparm *pm)
978
{
12473 bpr 979
  double dd;
980
  dd=pm->pd[1]-pm->pd[0];
981
  xstart=pm->pd[0]; xscale=sizex/dd;
10 reyssat 982
}
983
 
7675 bpr 984
/* set y range */
10 reyssat 985
void obj_yrange(objparm *pm)
986
{
12473 bpr 987
  double dd;
988
  dd=pm->pd[1]-pm->pd[0];
989
  ystart=pm->pd[1]; yscale=-sizey/dd;
10 reyssat 990
}
991
 
7675 bpr 992
/* set x et y range */
10 reyssat 993
void obj_range(objparm *pm)
994
{
12473 bpr 995
  double d1,d2;
996
  d1=pm->pd[1]-pm->pd[0]; d2=pm->pd[3]-pm->pd[2];
997
  xstart=pm->pd[0]; xscale=(sizex-1)/d1;
998
  ystart=pm->pd[3]; yscale=-(sizey-1)/d2;
10 reyssat 999
}
1000
 
7675 bpr 1001
/* set t range */
10 reyssat 1002
void obj_trange(objparm *pm)
1003
{
12473 bpr 1004
  /*double dd;
1005
  dd=pm->pd[1]-pm->pd[0];*/
1006
  tstart=pm->pd[0]; tend=pm->pd[1];
1007
  tranged=1;
10 reyssat 1008
}
1009
 
7675 bpr 1010
/* set tstep (plotting step) */
10 reyssat 1011
void obj_tstep(objparm *pm)
1012
{
12473 bpr 1013
  int dd;
1014
  dd=pm->pd[0];
1015
  if(dd<3) {
1016
    fly_error("bad_step"); return;
1017
  }
1018
  if(dd>2000) dd=2000;
1019
  tstep=dd;
10 reyssat 1020
}
1021
 
7675 bpr 1022
/* set plotjump (plot jump break threashold) */
10 reyssat 1023
void obj_plotjump(objparm *pm)
1024
{
12473 bpr 1025
  int dd;
1026
  dd=pm->pd[0];
1027
  if(dd<3) dd=3;
1028
  if(dd>MAX_SIZE) dd=MAX_SIZE;
1029
  plotjump=dd;
10 reyssat 1030
}
1031
 
7675 bpr 1032
/* plot a curve, either parametric or explicit */
6578 bpr 1033
void _obj_plot(objparm *pm,int dash)
10 reyssat 1034
{
12473 bpr 1035
  int i,j,n,dist,xx,yy,varpos;
1036
  char p1[MAX_LINELEN+1], p2[MAX_LINELEN+1];
1037
  char *varn, *pp;
1038
  double dc[2],t,v;
1039
  int ic[2],oc[2];
10 reyssat 1040
 
12473 bpr 1041
  n=itemnum(pm->str);
1042
  if(n<1) {
1043
    fly_error("bad_parms"); return;
1044
  }
1045
  fnd_item(pm->str,1,p1); fnd_item(pm->str,2,p2);
1046
  if(n==1 && !tranged) v=sizex/xscale/tstep;
1047
  else v=(tend-tstart)/tstep;
1048
  if(n==1) varn="x"; else varn="t";
1049
  for(pp=varchr(p1,varn); pp; pp=varchr(pp,varn)) {
1050
    string_modify(p1,pp,pp+strlen(varn),EV_T);
1051
    pp+=strlen(EV_T);
1052
  }
1053
  for(pp=varchr(p2,varn); pp; pp=varchr(pp,varn)) {
1054
    string_modify(p2,pp,pp+strlen(varn),EV_T);
7675 bpr 1055
      pp+=strlen(EV_T);
12473 bpr 1056
  }
1057
  varpos=eval_getpos(EV_T);
1058
  if(varpos<0) return; /* unknown error */
1059
  evalue_compile(p1); evalue_compile(p2);
1060
  if(vimg_enable) vimg_plotstart();
1061
  for(i=j=0;i<=tstep;i++) {
1062
    if(n==1) {
1063
      if(tranged) t=tstart+i*v; else t=xstart+i*v;
1064
      eval_setval(varpos,t); dc[0]=t; dc[1]=strevalue(p1);
10 reyssat 1065
    }
17584 bpr 1066
      else {
1067
        t=tstart+i*v; eval_setval(varpos,t);
1068
        dc[0]=strevalue(p1); dc[1]=strevalue(p2);
10 reyssat 1069
    }
17584 bpr 1070
      if(!isfinite(dc[0]) || !isfinite(dc[1])) ic[0]=ic[1]=-BOUND;
1071
      else scale(dc,ic,1);
1072
      if(vimg_enable) vimg_plot1 (scale_buf[0],scale_buf[1]);
1073
      if(j==0) {
1074
        gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); j++;
1075
        if (tikz_file)
1076
          fprintf(tikz_file,
1077
            "\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
1078
            tikz_options(pm->color[0],1),ic[0],flip(ic[1]),ic[0]+1,flip(ic[1]+1));
1079
       }
1080
      else {
1081
        xx=ic[0]-oc[0]; yy=ic[1]-oc[1];
1082
        dist=sqrt(xx*xx+yy*yy);
1083
        if(dist>0){
1084
          if(dist>plotjump || dist==1) {
1085
            gdImageSetPixel(image,ic[0],ic[1],pm->color[0]);
1086
            if (tikz_file)
1087
              fprintf(tikz_file,
1088
                "\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
1089
                tikz_options(pm->color[0],1),ic[0],flip(ic[1]),ic[0]+1,flip(ic[1]+1));
1090
          }
1091
          }
1092
          else {
1093
            if ( dash==1)
1094
              gdImageDashedLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]);
1095
            else
1096
              gdImageLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]);
1097
            if (tikz_file)
1098
              fprintf(tikz_file,
1099
                "\\draw\[%s] (%i,%i) -- (%i,%i);\n",
1100
                tikz_options(pm->color[0],dash),oc[0],flip(oc[1]),ic[0],flip(ic[1]));
1101
 
1102
          }
1103
        }
12473 bpr 1104
    memmove(oc,ic,sizeof(oc));
1105
  }
1106
  if(vimg_enable) vimg_plotend();
10 reyssat 1107
}
1108
 
6578 bpr 1109
void obj_plot(objparm *pm) { _obj_plot( pm,0) ;}
1110
void obj_dplot(objparm *pm) { _obj_plot( pm,1) ; }
1111
 
7675 bpr 1112
/* set levelcurve granularity */
10 reyssat 1113
void obj_levelstep(objparm *pm)
1114
{
12473 bpr 1115
  int dd;
1116
  dd=pm->pd[0];
1117
  if(dd<1) return;
1118
  if(dd>16) dd=16;
1119
  lstep=dd;
10 reyssat 1120
}
1121
 
7675 bpr 1122
/* level curve */
10 reyssat 1123
void obj_levelcurve(objparm *pm)
1124
{
12473 bpr 1125
  char fn[MAX_LINELEN+1],tc[MAX_LINELEN+1];
1126
  int n,i;
1127
  double d;
1128
  leveldata *ld;
7615 bpr 1129
 
12473 bpr 1130
  ld=xmalloc(sizeof(leveldata)+16);
1131
  ld->xname="x"; ld->yname="y";
1132
  ld->xsize=sizex; ld->ysize=sizey; ld->datacnt=0;
1133
  ld->xrange[0]=xstart; ld->xrange[1]=sizex/xscale+xstart;
1134
  ld->yrange[0]=sizey/yscale+ystart; ld->yrange[1]=ystart;
1135
  ld->grain=lstep;
1136
  fnd_item(pm->str,1,fn); ld->fn=fn;
1137
  n=itemnum(pm->str);
1138
  if(n<=1) {ld->levelcnt=1; ld->levels[0]=0;}
1139
  else {
1140
    if(n>LEVEL_LIM+1) n=LEVEL_LIM+1;
1141
    for(i=0;i<n-1;i++) {
1142
      fnd_item(pm->str,i+2,tc);
1143
      d=strevalue(tc);
1144
      if(isfinite(d)) ld->levels[i]=d; else ld->levels[i]=0;
10 reyssat 1145
    }
12473 bpr 1146
    ld->levelcnt=n-1;
1147
  }
1148
  levelcurve(ld);
1149
  for(i=0;i<ld->datacnt;i++) {
1150
    gdImageSetPixel(image,ld->xdata[i],ld->ydata[i],pm->color[0]);
17584 bpr 1151
    if (tikz_file)
1152
      fprintf(tikz_file,
1153
        "\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
1154
        tikz_options(pm->color[0],1),ld->xdata[i],flip(ld->ydata[i]),ld->xdata[i]+1,flip(ld->ydata[i]+1));
12473 bpr 1155
  }
1156
  free(ld);
10 reyssat 1157
}
1158
 
7675 bpr 1159
/* set animation step */
10 reyssat 1160
void obj_animstep(objparm *pm)
1161
{
12473 bpr 1162
  animstep=pm->pd[0];
1163
  setvar("animstep",pm->pd[0]);
10 reyssat 1164
}
1165
 
7675 bpr 1166
/* Starts a line counting */
10 reyssat 1167
void obj_linecount(objparm *pm)
1168
{
12473 bpr 1169
  linecnt=pm->pd[0];
10 reyssat 1170
}
1171
 
7675 bpr 1172
/* marks end of execution */
10 reyssat 1173
void obj_end(objparm *pm)
1174
{
12473 bpr 1175
  fly_error("successful_end_of_execution");
10 reyssat 1176
}
1177
 
7675 bpr 1178
/* output */
10 reyssat 1179
void obj_output(objparm *pm)
1180
{
12473 bpr 1181
  char *p, namebuf[1024];
1182
  p=find_word_start(pm->str); *find_word_end(p)=0;
1183
  snprintf(namebuf,sizeof(namebuf),"%s",imagefilename);
1184
  snprintf(imagefilename,sizeof(imagefilename),"%s",p);
1185
  output();
1186
  snprintf(imagefilename,sizeof(imagefilename),"%s",namebuf);
10 reyssat 1187
}
1188
 
7675 bpr 1189
/* vimgfile */
1024 bpr 1190
void obj_vimgfile(objparm *pm)
1191
{
12473 bpr 1192
  char *p;
1193
  p=find_word_start(pm->str); *find_word_end(p)=0;
1194
  snprintf(vimgfilename,sizeof(vimgfilename),"%s",p);
1195
  if(vimg_ready) vimg_close();
1024 bpr 1196
}
1197
 
7675 bpr 1198
/* vimg enable/disable */
1024 bpr 1199
void obj_vimg(objparm *pm)
1200
{
12473 bpr 1201
  vimg_enable=pm->pd[0];
1202
  if(vimg_enable>0 && vimg_ready==0) vimg_init();
1024 bpr 1203
}
1204
 
7675 bpr 1205
/* Set affine transformation */
10 reyssat 1206
void obj_affine(objparm *pm)
1207
{
12473 bpr 1208
  int i;
1209
  for(i=0;i<4;i++) matrix[i]=pm->pd[i];
1210
  transx=pm->pd[4]; transy=pm->pd[5];
1211
  transform=1;
10 reyssat 1212
}
1213
 
7675 bpr 1214
/* Set affine transformation */
10 reyssat 1215
void obj_rotation(objparm *pm)
1216
{
12473 bpr 1217
  double r;
1218
  r=M_PI*pm->pd[0]/180;
1219
  matrix[0]=matrix[3]=cos(r);
1220
  matrix[1]=-sin(r); matrix[2]=sin(r);
1221
  transform=1;
10 reyssat 1222
}
1223
 
8419 bpr 1224
/* Set linear transformation */
10 reyssat 1225
void obj_linear(objparm *pm)
1226
{
12473 bpr 1227
  int i;
1228
  for(i=0;i<4;i++) matrix[i]=pm->pd[i];
1229
  transform=1;
10 reyssat 1230
}
1231
 
8419 bpr 1232
/* Set translation transformation */
10 reyssat 1233
void obj_translation(objparm *pm)
1234
{
12473 bpr 1235
  transx=pm->pd[0]; transy=pm->pd[1];
10 reyssat 1236
}
1237
 
8419 bpr 1238
/* kill affine transformation */
10 reyssat 1239
void obj_killaffine(objparm *pm)
1240
{
12473 bpr 1241
  matrix[0]=matrix[3]=1;
1242
  matrix[1]=matrix[2]=transx=transy=0;
1243
  transform=0;
10 reyssat 1244
}
1245
 
8419 bpr 1246
/* kill affine transformation */
10 reyssat 1247
void obj_killlinear(objparm *pm)
1248
{
12473 bpr 1249
  matrix[0]=matrix[3]=1;
1250
  matrix[1]=matrix[2]=0;
1251
  transform=0;
10 reyssat 1252
}
1253
 
8419 bpr 1254
/* kill affine transformation */
10 reyssat 1255
void obj_killtranslation(objparm *pm)
1256
{
12473 bpr 1257
  transx=transy=0;
10 reyssat 1258
}
1259
 
1260
/***** Les modifs de Jean-Christophe Leger Fev 2006 *****/
1261
 
7615 bpr 1262
/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES, une liste de 4 nombres reels pour la matrice */
10 reyssat 1263
void obj_setmatrix(objparm *pm)
1264
{
1265
  int nummatrix = (int) (pm->pd[0]);
1266
  if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) {
8195 bpr 1267
    fly_error("bad_matrix_number");
10 reyssat 1268
    return;
1269
  }
1270
  matrices_pavage[nummatrix][0] = pm->pd[1];
1271
  matrices_pavage[nummatrix][1] = pm->pd[2];
1272
  matrices_pavage[nummatrix][2] = pm->pd[3];
1273
  matrices_pavage[nummatrix][3] = pm->pd[4];
1274
}
1275
 
7615 bpr 1276
/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10 reyssat 1277
void obj_resetmatrix(objparm *pm)
1278
{
1279
  int nummatrix = (int) (pm->pd[0]);
1280
  if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) {
8195 bpr 1281
    fly_error("bad_matrix_number");
10 reyssat 1282
    return;
1283
  }
1284
  matrices_pavage[nummatrix][0] = 1;
1285
  matrices_pavage[nummatrix][1] = 0;
1286
  matrices_pavage[nummatrix][2] = 0;
1287
  matrices_pavage[nummatrix][3] = 1;
1288
 
1289
}
7615 bpr 1290
/* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 2 nombres reels pour le vecteur */
10 reyssat 1291
void obj_setvector(objparm *pm)
1292
{
1293
  int nummatrix = (int) (pm->pd[0]);
1294
  if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) {
8195 bpr 1295
    fly_error("bad_vector_number");
10 reyssat 1296
    return;
1297
  }
1298
  vecteurs_pavage[nummatrix][0] = pm->pd[1];
1299
  vecteurs_pavage[nummatrix][1] = pm->pd[2];
1300
}
1301
 
7615 bpr 1302
/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10 reyssat 1303
void obj_resetvector(objparm *pm)
1304
{
1305
  int nummatrix = (int) (pm->pd[0]);
1306
  if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) {
8195 bpr 1307
    fly_error("bad_vector_number");
10 reyssat 1308
    return;
1309
  }
1310
  vecteurs_pavage[nummatrix][0] = 0;
1311
  vecteurs_pavage[nummatrix][1] = 0;
1312
}
1313
 
7615 bpr 1314
/* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 6 nombres reels pour la matrice et le vecteur */
10 reyssat 1315
void obj_settransform(objparm *pm)
1316
{
1317
  int nummatrix = (int) (pm->pd[0]);
1318
  if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) {
8195 bpr 1319
    fly_error("bad_vector_number");
10 reyssat 1320
    return;
1321
  }
1322
  matrices_pavage[nummatrix][0] = pm->pd[1];
1323
  matrices_pavage[nummatrix][1] = pm->pd[2];
1324
  matrices_pavage[nummatrix][2] = pm->pd[3];
1325
  matrices_pavage[nummatrix][3] = pm->pd[4];
1326
  vecteurs_pavage[nummatrix][0] = pm->pd[5];
1327
  vecteurs_pavage[nummatrix][1] = pm->pd[6];
1328
}
1329
 
1330
 
7615 bpr 1331
/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10 reyssat 1332
void obj_resettransform(objparm *pm)
1333
{
1334
  int nummatrix = (int) (pm->pd[0]);
1335
  if((nummatrix < 1) ||(nummatrix>JC_NB_MATRICES)) {
8195 bpr 1336
    fly_error("bad_vector_number");
10 reyssat 1337
    return;
1338
  }
1339
  vecteurs_pavage[nummatrix][0] = 0;
1340
  vecteurs_pavage[nummatrix][1] = 0;
1341
  matrices_pavage[nummatrix][0] = 1;
1342
  matrices_pavage[nummatrix][1] = 0;
1343
  matrices_pavage[nummatrix][2] = 0;
1344
  matrices_pavage[nummatrix][3] = 1;
1345
}
1346
 
7615 bpr 1347
/* arguments: une liste de 6 nombres reels pour les coordonnees de l'origine et des vecteurs de base */
10 reyssat 1348
void obj_setparallelogram(objparm *pm)
1349
{
1350
  int i;
1351
  for(i=0;i<6;i++)  parallogram_fonda[i]=pm->pd[i];
1352
}
1353
 
1354
/* arguments :aucun */
1355
void obj_resetparallelogram(objparm *pm)
1356
{
1357
  parallogram_fonda[0]=0;
1358
  parallogram_fonda[1]=0;
1359
  parallogram_fonda[2]=100;
1360
  parallogram_fonda[3]=0;
1361
  parallogram_fonda[4]=0;
1362
  parallogram_fonda[5]=100;
1363
}
1364
 
1365
/* argument : la liste des numeros des matrices a faire agir, le nom du fichier de l'image a inclure */
1366
void obj_multicopy(objparm *pm)
1367
{
12473 bpr 1368
  char *pp,*pe,*cptr;
1369
  FILE *inf;
1370
  gdImagePtr insimg;
1371
  int i,j;
1372
  int imax,jmax;
1373
  int c; /* la couleur reperee */
1374
  int mat;
1375
  int nummatrices[JC_NB_MATRICES];
1376
  double pt[2]; /* les coordonnees math. du point repere dans le parallelogramme */
1377
  double ptr[2]; /* les coordonnees math. du point transforme */
1378
  int pti[2]; /* les coordonnees img du point a placer sur le canevas */
1379
  int t;
1380
  /* gestion palette de couleur de l'image a inserer */
1381
  int colorMap[gdMaxColors];
1382
  int comptmat=0; /* combien de matrices en tout ? */
7615 bpr 1383
 
12473 bpr 1384
  for (i=0; (i<gdMaxColors); i++) {
1385
    colorMap[i] = (-1);
1386
  }
10 reyssat 1387
 
12473 bpr 1388
  /* Gestion des parametres la liste est censee finir avec le nom du fichier */
1389
  t=pm->pcnt-1; /* il faut enlever le nom de fichier ! c'est le nombre de parametres en plus */
1390
  pp=find_word_start(pm->str);
1391
  /* visiblement find_word_start n'arrive pas a trouver le dernier mot dans un contexte ou le nombre de parameters est variable
10 reyssat 1392
     * on cherche donc l'emplacement de la derniere virgule:
1393
     * il y en a une car t>0, on retrouve ensuite le debut de mot
1394
     */
12473 bpr 1395
  for(pe=pp;*pe!=0;pe++);/* trouve la fin de la chaine */
1396
  if(t>0){
1397
    for(cptr = pe; cptr > pp && *cptr != ','; cptr--);
1398
    pp=find_word_start(cptr+1);
1399
  }
1400
  pe=find_word_end(pp);*pe=0; /* strip junk final */
1401
  //      printf("pp contient %s\n",pp);
10 reyssat 1402
 
1403
 
12473 bpr 1404
  inf=open4read(pp);
1405
  if(inf==NULL) {
1406
    fly_error("file_not_exist"); return;
1407
  }
1408
  insimg=gdImageCreateFromGif(inf); fclose(inf);
1409
  if(insimg==NULL) {
1410
    fly_error("bad_gif"); return;
1411
  }
10 reyssat 1412
 
12473 bpr 1413
  /* On recupere les numeros des matrices/vecteurs a faire agir,
1414
    * s'il n'y en a pas, on les fait toutes agir
1415
  */
1416
  for(i=0;i<t && i< JC_NB_MATRICES;i++) {
1417
    if(pm->pd[i]>=1 && pm->pd[i]<=JC_NB_MATRICES){
1418
      nummatrices[comptmat] = pm->pd[i];
1419
      comptmat++;
10 reyssat 1420
    }
12473 bpr 1421
  }
1422
  if(t<=0){
1423
    for(i=0;i<JC_NB_MATRICES;i++) {
1424
      nummatrices[i] = i+1;
10 reyssat 1425
    }
12473 bpr 1426
    comptmat=JC_NB_MATRICES;
1427
  }
10 reyssat 1428
 
7615 bpr 1429
 
12473 bpr 1430
  imax = gdImageSX(insimg);
1431
  jmax = gdImageSY(insimg);
10 reyssat 1432
 
12473 bpr 1433
  for(i=0;i<imax;i++){
1434
    for(j=0;j<jmax;j++){
1435
      int nc;
1436
      c=gdImageGetPixel(insimg,i,j);
1437
      /* Le code suivant est une copie du code dans gdImageCopy  Added 7/24/95: support transparent copies */
1438
      if (gdImageGetTransparent(insimg) != c) {
1439
        /* Have we established a mapping for this color? */
1440
        if (colorMap[c] == (-1)) {
1441
          /* If it's the same image, mapping is trivial, dans notre cas ca n'arrive jamais... */
1442
          if (image == insimg) {
1443
            nc = c;
1444
          } else {
1445
            /* First look for an exact match */
1446
            nc = gdImageColorExact(image,
1447
                   insimg->red[c], insimg->green[c],
1448
                           insimg->blue[c]);
1449
          }
1450
          if (nc == (-1)) {
1451
          /* No, so try to allocate it */
1452
            nc = gdImageColorAllocate(image,
1453
                             insimg->red[c], insimg->green[c],
7675 bpr 1454
                             insimg->blue[c]);
12473 bpr 1455
             /* If we're out of colors, go for the closest color */
1456
            if (nc == (-1)) {
1457
              nc = gdImageColorClosest(image,
7675 bpr 1458
                              insimg->red[c], insimg->green[c],
1459
                              insimg->blue[c]);
12473 bpr 1460
            }
1461
          }
1462
          colorMap[c] = nc;
1463
        }
10 reyssat 1464
 
12473 bpr 1465
        pt[0]= i*(parallogram_fonda[2])/(imax-1)+(jmax-j)*(parallogram_fonda[4])/(jmax-1)+parallogram_fonda[0];
1466
        pt[1]= i*(parallogram_fonda[3])/(imax-1)+(jmax-j)*(parallogram_fonda[5])/(jmax-1)+parallogram_fonda[1];
1467
        for(mat=0;mat<comptmat;mat++){
7675 bpr 1468
          double *matricecourante = matrices_pavage[nummatrices[mat]];
1469
          double *vecteurcourant = vecteurs_pavage[nummatrices[mat]];
1470
          ptr[0] = matricecourante[0]*pt[0]+matricecourante[1]*pt[1]+vecteurcourant[0];
1471
          ptr[1] = matricecourante[2]*pt[0]+matricecourante[3]*pt[1]+vecteurcourant[1];
1472
          scale(ptr,pti,1);
1473
          gdImageSetPixel(image,pti[0],pti[1],colorMap[c]);
12473 bpr 1474
        }
10 reyssat 1475
      }
1476
    }
12473 bpr 1477
  }
1478
  gdImageDestroy(insimg);
10 reyssat 1479
}
1480
 
1481
/**** Fin modifs JC Fev 06 ******/
1482
 
7675 bpr 1483
/* get color from value */
10 reyssat 1484
int calc_color(char *p, struct objtab *o)
1485
{
12473 bpr 1486
  int k, cc[3];
1487
  char buf[MAX_LINELEN+1];
1488
  for(k=0;k<3;k++) {
1489
    fnd_item(p,k+1,buf);
1490
    cc[k]=strevalue(buf);
1491
  }
1492
  collapse_item(p,3);
1493
  if(cc[0]==-1 && cc[1]==-1 && cc[2]==-255) {
10 reyssat 1494
 
12473 bpr 1495
    if(brushed && o->subst&1) return gdBrushed;
1496
    else return color_black;
1497
  }
1498
  if(cc[0]==-1 && cc[1]==-255 && cc[2]==-1) {
1499
    if(styled && o->subst&2)  return gdStyled;
1500
    else return color_black;
1501
  }
1502
  if(cc[0]==-255 && cc[1]==-1 && cc[2]==-1) {
1503
    if(tiled && o->fill_tag==1)  return gdTiled;
1504
    else return color_black;
1505
  }
1506
  return getcolor(cc[0],cc[1],cc[2]);
10 reyssat 1507
}
1508
 
7675 bpr 1509
/* Routine to parse parameters */
10 reyssat 1510
int parse_parms(char *p,objparm *pm,struct objtab *o)
1511
{
12473 bpr 1512
  char buf[MAX_LINELEN+1];
1513
  char *p1, *p2;
1514
  int j,t,c,c1,c2;
7615 bpr 1515
 
12473 bpr 1516
  c=o->color_pos;c1=c2=0;
1517
  pm->color[0]=pm->color[1]=0;
1518
  if(c>0) c1=c;
1519
  if(c<0) c2=-c;
1520
  c=c1+c2;
1521
  t=itemnum(p);if(t<o->required_parms+3*c) return -1;
1522
  if(c1>0 && t>o->required_parms+3*c) t=o->required_parms+3*c;
1523
  pm->pcnt=t-3*c;
1524
  if(pm->pcnt>MAX_PARMS) pm->pcnt=MAX_PARMS;
1525
  if(c2>0) {
1526
    for(j=0;j<2 && j<c2; j++) pm->color[j]=calc_color(p,o);
1527
  }
1528
  snprintf(buf,sizeof(buf),"%s",p);
1529
  for(j=0, p1=buf; j<pm->pcnt; j++, p1=p2) {
1530
    p2=find_item_end(p1); if(*p2) *p2++=0;
1531
    p1=find_word_start(p1);
1532
    if(*p1) pm->pd[j]=strevalue(p1); else pm->pd[j]=0;
1533
    if(!isfinite(pm->pd[j])) {
1534
        if(j<o->required_parms) return -1;
1535
        else {pm->pd[j]=0;break;}
10 reyssat 1536
    }
12473 bpr 1537
  }
1538
  collapse_item(p,o->required_parms);
1539
  if(c1>0) {
1540
    for(j=0;j<c1 && j<2; j++) pm->color[j]=calc_color(p,o);
1541
  }
1542
  if(width>1 && o->subst&1 && pm->color[0]!=gdBrushed
1543
      && pm->color[0]!=gdStyled && pm->color[0]!=gdTiled) {
1544
    pm->color[1]=pm->color[0];
1545
    pm->color[0]=widthcolor(width,pm->color[0]);
1546
  }
1547
  pm->fill=o->fill_tag;
1548
  ovlstrcpy(pm->str,p); return 0;
10 reyssat 1549
}
1550
 
8068 bpr 1551
/* Create the struct objparm pm corresponding to the objparm p
1552
 * Execute a command. Returns 0 if OK.
1553
 */
10 reyssat 1554
int obj_main(char *p)
1555
{
12473 bpr 1556
  int i;
1557
  char *pp,*name,*pt;
1558
  char tbuf2[MAX_LINELEN+1];
1559
  struct objparm pm;
10 reyssat 1560
 
12473 bpr 1561
  p=find_word_start(p);
1562
  if(*p==exec_prefix_char || *p==0) return 0; /* comment */
1563
  name=p;
1564
  pp=find_name_end(p);
1565
  pt=find_word_start(pp); if(*pt=='=') *pt=' ';
1566
  if(*pt==':' && *(pt+1)=='=') *pt=*(pt+1)=' ';
1567
  pp=find_word_end(p);
1568
  if(*pp!=0) {
1569
    *(pp++)=0; pp=find_word_start(pp);
1570
  }
1571
  if(strlen(p)==1 || (strlen(p)==2 && isdigit(*(p+1)))) {
1572
    setvar(p,strevalue(pp)); return 0;
1573
  }
1574
  /* search the number of the object */
1575
  i=search_list(objtab,obj_no,sizeof(objtab[0]),name);
1576
  if(i<0) {
1577
    fly_error("bad_cmd"); return 1;
1578
  }
1579
  if(image==NULL && (objtab[i].color_pos || objtab[i].required_parms>2)) {
1580
    fly_error("image_not_defined"); return 1;
1581
  }
1582
  ovlstrcpy(tbuf2,pp);
1583
  if(objtab[i].color_pos || objtab[i].routine==obj_setstyle) {
1584
    substit(tbuf2);
1585
  }
1586
  if(parse_parms(tbuf2,&pm,objtab+i)!=0) fly_error("bad_parms");
1587
  else objtab[i].routine(&pm);
1588
  return 0;
10 reyssat 1589
}