cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % GGGG EEEEE OOO M M EEEEE TTTTT RRRR Y Y % |
| 7 | % G E O O MM MM E T R R Y Y % |
| 8 | % G GG EEE O O M M M EEE T RRRR Y % |
| 9 | % G G E O O M M E T R R Y % |
| 10 | % GGGG EEEEE OOO M M EEEEE T R R Y % |
| 11 | % % |
| 12 | % % |
| 13 | % MagickCore Geometry Methods % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % John Cristy % |
| 17 | % January 2003 % |
| 18 | % % |
| 19 | % % |
cristy | 1454be7 | 2011-12-19 01:52:48 +0000 | [diff] [blame] | 20 | % Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | Include declarations. |
| 41 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 42 | #include "MagickCore/studio.h" |
| 43 | #include "MagickCore/constitute.h" |
| 44 | #include "MagickCore/draw.h" |
| 45 | #include "MagickCore/exception.h" |
| 46 | #include "MagickCore/exception-private.h" |
| 47 | #include "MagickCore/geometry.h" |
| 48 | #include "MagickCore/memory_.h" |
| 49 | #include "MagickCore/string_.h" |
| 50 | #include "MagickCore/string-private.h" |
| 51 | #include "MagickCore/token.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 52 | |
| 53 | /* |
| 54 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 55 | % % |
| 56 | % % |
| 57 | % % |
| 58 | % G e t G e o m e t r y % |
| 59 | % % |
| 60 | % % |
| 61 | % % |
| 62 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 63 | % |
| 64 | % GetGeometry() parses a geometry specification and returns the width, |
| 65 | % height, x, and y values. It also returns flags that indicates which |
| 66 | % of the four values (width, height, x, y) were located in the string, and |
| 67 | % whether the x or y values are negative. In addition, there are flags to |
| 68 | % report any meta characters (%, !, <, or >). |
| 69 | % |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 70 | % The value must form a proper geometry style specification of WxH+X+Y |
| 71 | % of integers only, and values can not be separated by comma, colon, or |
| 72 | % slash charcaters. See ParseGeometry() below. |
| 73 | % |
| 74 | % Offsets may be prefixed by multiple signs to make offset string |
| 75 | % substitutions easier to handle from shell scripts. |
| 76 | % For example: "-10-10", "-+10-+10", or "+-10+-10" will generate negtive |
| 77 | % offsets, while "+10+10", "++10++10", or "--10--10" will generate positive |
| 78 | % offsets. |
| 79 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 80 | % The format of the GetGeometry method is: |
| 81 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 82 | % MagickStatusType GetGeometry(const char *geometry,ssize_t *x,ssize_t *y, |
| 83 | % size_t *width,size_t *height) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 84 | % |
| 85 | % A description of each parameter follows: |
| 86 | % |
| 87 | % o geometry: The geometry. |
| 88 | % |
| 89 | % o x,y: The x and y offset as determined by the geometry specification. |
| 90 | % |
| 91 | % o width,height: The width and height as determined by the geometry |
| 92 | % specification. |
| 93 | % |
| 94 | */ |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 95 | MagickExport MagickStatusType GetGeometry(const char *geometry,ssize_t *x, |
| 96 | ssize_t *y,size_t *width,size_t *height) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 97 | { |
| 98 | char |
| 99 | *p, |
| 100 | pedantic_geometry[MaxTextExtent], |
| 101 | *q; |
| 102 | |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 103 | double |
| 104 | value; |
| 105 | |
cristy | f30f47d | 2011-09-06 14:40:59 +0000 | [diff] [blame] | 106 | int |
| 107 | c; |
| 108 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 109 | MagickStatusType |
| 110 | flags; |
| 111 | |
| 112 | /* |
| 113 | Remove whitespace and meta characters from geometry specification. |
| 114 | */ |
| 115 | flags=NoValue; |
| 116 | if ((geometry == (char *) NULL) || (*geometry == '\0')) |
| 117 | return(flags); |
cristy | 37e0b38 | 2011-06-07 13:31:21 +0000 | [diff] [blame] | 118 | if (strlen(geometry) >= (MaxTextExtent-1)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 119 | return(flags); |
| 120 | (void) CopyMagickString(pedantic_geometry,geometry,MaxTextExtent); |
| 121 | for (p=pedantic_geometry; *p != '\0'; ) |
| 122 | { |
| 123 | if (isspace((int) ((unsigned char) *p)) != 0) |
| 124 | { |
| 125 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 126 | continue; |
| 127 | } |
anthony | c330e15 | 2012-04-19 14:40:36 +0000 | [diff] [blame] | 128 | c=(int)*p; |
cristy | 35f75ac | 2011-09-06 20:33:35 +0000 | [diff] [blame] | 129 | switch (c) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 130 | { |
| 131 | case '%': |
| 132 | { |
| 133 | flags|=PercentValue; |
| 134 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 135 | break; |
| 136 | } |
| 137 | case '!': |
| 138 | { |
| 139 | flags|=AspectValue; |
| 140 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 141 | break; |
| 142 | } |
| 143 | case '<': |
| 144 | { |
| 145 | flags|=LessValue; |
| 146 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 147 | break; |
| 148 | } |
| 149 | case '>': |
| 150 | { |
| 151 | flags|=GreaterValue; |
| 152 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 153 | break; |
| 154 | } |
| 155 | case '^': |
| 156 | { |
| 157 | flags|=MinimumValue; |
| 158 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 159 | break; |
| 160 | } |
| 161 | case '@': |
| 162 | { |
| 163 | flags|=AreaValue; |
| 164 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 165 | break; |
| 166 | } |
| 167 | case '(': |
| 168 | case ')': |
| 169 | { |
| 170 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 171 | break; |
| 172 | } |
cristy | 1ad6c87 | 2012-08-02 11:54:05 +0000 | [diff] [blame] | 173 | case 'x': |
| 174 | case 'X': |
| 175 | { |
| 176 | flags|=SeparatorValue; |
| 177 | p++; |
| 178 | break; |
| 179 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 180 | case '-': |
| 181 | case '.': |
| 182 | case ',': |
| 183 | case '+': |
| 184 | case '0': |
| 185 | case '1': |
| 186 | case '2': |
| 187 | case '3': |
| 188 | case '4': |
| 189 | case '5': |
| 190 | case '6': |
| 191 | case '7': |
| 192 | case '8': |
| 193 | case '9': |
cristy | 35f75ac | 2011-09-06 20:33:35 +0000 | [diff] [blame] | 194 | case 215: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 195 | { |
| 196 | p++; |
| 197 | break; |
| 198 | } |
| 199 | default: |
| 200 | return(flags); |
| 201 | } |
| 202 | } |
| 203 | /* |
| 204 | Parse width, height, x, and y. |
| 205 | */ |
| 206 | p=pedantic_geometry; |
| 207 | if (*p == '\0') |
| 208 | return(flags); |
| 209 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 210 | value=StringToDouble(p,&q); |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 211 | (void) value; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 212 | if (LocaleNCompare(p,"0x",2) == 0) |
cristy | f53f26f | 2011-05-16 00:56:05 +0000 | [diff] [blame] | 213 | value=(double) strtol(p,&q,10); |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 214 | if ((*p != '+') && (*p != '-')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 215 | { |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 216 | c=(int) ((unsigned char) *q); |
| 217 | if ((c == 215) || (*q == 'x') || (*q == 'X') || (*q == '\0')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 218 | { |
| 219 | /* |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 220 | Parse width. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 221 | */ |
| 222 | q=p; |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 223 | if (LocaleNCompare(p,"0x",2) == 0) |
| 224 | *width=(size_t) strtol(p,&p,10); |
| 225 | else |
| 226 | *width=(size_t) floor(StringToDouble(p,&p)+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 227 | if (p != q) |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 228 | flags|=WidthValue; |
| 229 | } |
| 230 | } |
| 231 | if ((*p != '+') && (*p != '-')) |
| 232 | { |
| 233 | c=(int) ((unsigned char) *p); |
| 234 | if ((c == 215) || (*p == 'x') || (*p == 'X')) |
| 235 | { |
| 236 | p++; |
| 237 | if ((*p != '+') && (*p != '-')) |
| 238 | { |
| 239 | /* |
| 240 | Parse height. |
| 241 | */ |
| 242 | q=p; |
| 243 | *height=(size_t) floor(StringToDouble(p,&p)+0.5); |
| 244 | if (p != q) |
| 245 | flags|=HeightValue; |
| 246 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 247 | } |
| 248 | } |
| 249 | if ((*p == '+') || (*p == '-')) |
| 250 | { |
| 251 | /* |
| 252 | Parse x value. |
| 253 | */ |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 254 | while ((*p == '+') || (*p == '-')) |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 255 | { |
| 256 | if (*p == '-') |
| 257 | flags^=XNegative; /* negate sign */ |
| 258 | p++; |
| 259 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 260 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 261 | *x=(ssize_t) ceil(StringToDouble(p,&p)-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 262 | if (p != q) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 263 | { |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 264 | flags|=XValue; |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 265 | if ((flags & XNegative) != 0) |
| 266 | *x=(-*x); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 267 | } |
| 268 | } |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 269 | if ((*p == '+') || (*p == '-')) |
| 270 | { |
| 271 | /* |
| 272 | Parse y value. |
| 273 | */ |
| 274 | while ((*p == '+') || (*p == '-')) |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 275 | { |
| 276 | if (*p == '-') |
| 277 | flags^=YNegative; /* negate sign */ |
| 278 | p++; |
| 279 | } |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 280 | q=p; |
| 281 | *y=(ssize_t) ceil(StringToDouble(p,&p)-0.5); |
| 282 | if (p != q) |
| 283 | { |
| 284 | flags|=YValue; |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 285 | if ((flags & YNegative) != 0) |
| 286 | *y=(-*y); |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 287 | } |
| 288 | } |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 289 | if ((flags & PercentValue) != 0) |
cristy | 1ad6c87 | 2012-08-02 11:54:05 +0000 | [diff] [blame] | 290 | { |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 291 | if (((flags & SeparatorValue) == 0) && ((flags & HeightValue) == 0)) |
cristy | f045875 | 2012-08-12 20:55:34 +0000 | [diff] [blame] | 292 | { |
| 293 | *height=(*width); |
| 294 | flags|=HeightValue; |
| 295 | } |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 296 | if (((flags & SeparatorValue) != 0) && ((flags & WidthValue) == 0)) |
| 297 | *width=(*height); |
cristy | 1ad6c87 | 2012-08-02 11:54:05 +0000 | [diff] [blame] | 298 | } |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 299 | #if 0 |
| 300 | /* Debugging Geometry */ |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 301 | (void) fprintf(stderr,"GetGeometry...\n"); |
| 302 | (void) fprintf(stderr,"Input: %s\n",geometry); |
| 303 | (void) fprintf(stderr,"Flags: %c %c %s %s\n", |
| 304 | (flags & WidthValue) ? 'W' : ' ',(flags & HeightValue) ? 'H' : ' ', |
| 305 | (flags & XValue) ? ((flags & XNegative) ? "-X" : "+X") : " ", |
| 306 | (flags & YValue) ? ((flags & YNegative) ? "-Y" : "+Y") : " "); |
| 307 | (void) fprintf(stderr,"Geometry: %ldx%ld%+ld%+ld\n",(long) *width,(long) |
| 308 | *height,(long) *x,(long) *y); |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 309 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 310 | return(flags); |
| 311 | } |
| 312 | |
| 313 | /* |
| 314 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 315 | % % |
| 316 | % % |
| 317 | % % |
| 318 | % G e t P a g e G e o m e t r y % |
| 319 | % % |
| 320 | % % |
| 321 | % % |
| 322 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 323 | % |
| 324 | % GetPageGeometry() replaces any page mneumonic with the equivalent size in |
| 325 | % picas. |
| 326 | % |
| 327 | % The format of the GetPageGeometry method is: |
| 328 | % |
| 329 | % char *GetPageGeometry(const char *page_geometry) |
| 330 | % |
| 331 | % A description of each parameter follows. |
| 332 | % |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 333 | % o page_geometry: Specifies a pointer to an array of characters. The |
| 334 | % string is either a Postscript page name (e.g. A4) or a postscript page |
| 335 | % geometry (e.g. 612x792+36+36). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 336 | % |
| 337 | */ |
| 338 | MagickExport char *GetPageGeometry(const char *page_geometry) |
| 339 | { |
| 340 | static const char |
| 341 | *PageSizes[][2]= |
| 342 | { |
| 343 | { "4x6", "288x432" }, |
| 344 | { "5x7", "360x504" }, |
| 345 | { "7x9", "504x648" }, |
| 346 | { "8x10", "576x720" }, |
| 347 | { "9x11", "648x792" }, |
| 348 | { "9x12", "648x864" }, |
| 349 | { "10x13", "720x936" }, |
| 350 | { "10x14", "720x1008" }, |
| 351 | { "11x17", "792x1224" }, |
| 352 | { "a0", "2384x3370" }, |
| 353 | { "a1", "1684x2384" }, |
| 354 | { "a10", "73x105" }, |
| 355 | { "a2", "1191x1684" }, |
| 356 | { "a3", "842x1191" }, |
| 357 | { "a4", "595x842" }, |
| 358 | { "a4smaLL", "595x842" }, |
| 359 | { "a5", "420x595" }, |
| 360 | { "a6", "297x420" }, |
| 361 | { "a7", "210x297" }, |
| 362 | { "a8", "148x210" }, |
| 363 | { "a9", "105x148" }, |
| 364 | { "archa", "648x864" }, |
| 365 | { "archb", "864x1296" }, |
| 366 | { "archC", "1296x1728" }, |
| 367 | { "archd", "1728x2592" }, |
| 368 | { "arche", "2592x3456" }, |
| 369 | { "b0", "2920x4127" }, |
| 370 | { "b1", "2064x2920" }, |
| 371 | { "b10", "91x127" }, |
| 372 | { "b2", "1460x2064" }, |
| 373 | { "b3", "1032x1460" }, |
| 374 | { "b4", "729x1032" }, |
| 375 | { "b5", "516x729" }, |
| 376 | { "b6", "363x516" }, |
| 377 | { "b7", "258x363" }, |
| 378 | { "b8", "181x258" }, |
| 379 | { "b9", "127x181" }, |
| 380 | { "c0", "2599x3676" }, |
| 381 | { "c1", "1837x2599" }, |
| 382 | { "c2", "1298x1837" }, |
| 383 | { "c3", "918x1296" }, |
| 384 | { "c4", "649x918" }, |
| 385 | { "c5", "459x649" }, |
| 386 | { "c6", "323x459" }, |
| 387 | { "c7", "230x323" }, |
| 388 | { "executive", "540x720" }, |
| 389 | { "flsa", "612x936" }, |
| 390 | { "flse", "612x936" }, |
| 391 | { "folio", "612x936" }, |
| 392 | { "halfletter", "396x612" }, |
| 393 | { "isob0", "2835x4008" }, |
| 394 | { "isob1", "2004x2835" }, |
| 395 | { "isob10", "88x125" }, |
| 396 | { "isob2", "1417x2004" }, |
| 397 | { "isob3", "1001x1417" }, |
| 398 | { "isob4", "709x1001" }, |
| 399 | { "isob5", "499x709" }, |
| 400 | { "isob6", "354x499" }, |
| 401 | { "isob7", "249x354" }, |
| 402 | { "isob8", "176x249" }, |
| 403 | { "isob9", "125x176" }, |
| 404 | { "jisb0", "1030x1456" }, |
| 405 | { "jisb1", "728x1030" }, |
| 406 | { "jisb2", "515x728" }, |
| 407 | { "jisb3", "364x515" }, |
| 408 | { "jisb4", "257x364" }, |
| 409 | { "jisb5", "182x257" }, |
| 410 | { "jisb6", "128x182" }, |
| 411 | { "ledger", "1224x792" }, |
| 412 | { "legal", "612x1008" }, |
| 413 | { "letter", "612x792" }, |
| 414 | { "lettersmaLL", "612x792" }, |
| 415 | { "quarto", "610x780" }, |
| 416 | { "statement", "396x612" }, |
| 417 | { "tabloid", "792x1224" }, |
| 418 | { (char *) NULL, (char *) NULL } |
| 419 | }; |
| 420 | |
| 421 | char |
| 422 | *page; |
| 423 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 424 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 425 | i; |
| 426 | |
| 427 | assert(page_geometry != (char *) NULL); |
| 428 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",page_geometry); |
| 429 | page=AcquireString(page_geometry); |
| 430 | for (i=0; *PageSizes[i] != (char *) NULL; i++) |
| 431 | if (LocaleNCompare(PageSizes[i][0],page,strlen(PageSizes[i][0])) == 0) |
| 432 | { |
| 433 | RectangleInfo |
| 434 | geometry; |
| 435 | |
| 436 | MagickStatusType |
| 437 | flags; |
| 438 | |
| 439 | /* |
| 440 | Replace mneumonic with the equivalent size in dots-per-inch. |
| 441 | */ |
| 442 | (void) CopyMagickString(page,PageSizes[i][1],MaxTextExtent); |
| 443 | (void) ConcatenateMagickString(page,page_geometry+ |
| 444 | strlen(PageSizes[i][0]),MaxTextExtent); |
| 445 | flags=GetGeometry(page,&geometry.x,&geometry.y,&geometry.width, |
| 446 | &geometry.height); |
| 447 | if ((flags & GreaterValue) == 0) |
| 448 | (void) ConcatenateMagickString(page,">",MaxTextExtent); |
| 449 | break; |
| 450 | } |
| 451 | return(page); |
| 452 | } |
| 453 | |
| 454 | /* |
| 455 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 456 | % % |
| 457 | % % |
| 458 | % % |
| 459 | % G r a v i t y A d j u s t G e o m e t r y % |
| 460 | % % |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 461 | % % % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 462 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 463 | % |
| 464 | % GravityAdjustGeometry() adjusts the offset of a region with regard to the |
| 465 | % given: width, height and gravity; against which it is positioned. |
| 466 | % |
| 467 | % The region should also have an appropriate width and height to correctly |
| 468 | % set the right offset of the top left corner of the region. |
| 469 | % |
| 470 | % The format of the GravityAdjustGeometry method is: |
| 471 | % |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 472 | % void GravityAdjustGeometry(const size_t width, const size_t height, |
| 473 | % const GravityType gravity,RectangleInfo *region); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 474 | % |
| 475 | % A description of each parameter follows: |
| 476 | % |
| 477 | % o width, height: the larger area the region is relative to |
| 478 | % |
| 479 | % o gravity: the edge/corner the current offset is relative to |
| 480 | % |
| 481 | % o region: The region requiring a offset adjustment relative to gravity |
| 482 | % |
| 483 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 484 | MagickExport void GravityAdjustGeometry(const size_t width, |
| 485 | const size_t height,const GravityType gravity,RectangleInfo *region) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 486 | { |
| 487 | if (region->height == 0) |
| 488 | region->height=height; |
| 489 | if (region->width == 0) |
| 490 | region->width=width; |
| 491 | switch (gravity) |
| 492 | { |
| 493 | case NorthEastGravity: |
| 494 | case EastGravity: |
| 495 | case SouthEastGravity: |
| 496 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 497 | region->x=(ssize_t) (width-region->width-region->x); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 498 | break; |
| 499 | } |
| 500 | case NorthGravity: |
| 501 | case SouthGravity: |
| 502 | case CenterGravity: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 503 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 504 | region->x+=(ssize_t) (width/2-region->width/2); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 505 | break; |
| 506 | } |
| 507 | case ForgetGravity: |
| 508 | case NorthWestGravity: |
| 509 | case WestGravity: |
| 510 | case SouthWestGravity: |
| 511 | default: |
| 512 | break; |
| 513 | } |
| 514 | switch (gravity) |
| 515 | { |
| 516 | case SouthWestGravity: |
| 517 | case SouthGravity: |
| 518 | case SouthEastGravity: |
| 519 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 520 | region->y=(ssize_t) (height-region->height-region->y); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 521 | break; |
| 522 | } |
| 523 | case EastGravity: |
| 524 | case WestGravity: |
| 525 | case CenterGravity: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 526 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 527 | region->y+=(ssize_t) (height/2-region->height/2); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 528 | break; |
| 529 | } |
| 530 | case ForgetGravity: |
| 531 | case NorthWestGravity: |
| 532 | case NorthGravity: |
| 533 | case NorthEastGravity: |
| 534 | default: |
| 535 | break; |
| 536 | } |
| 537 | return; |
| 538 | } |
| 539 | |
| 540 | /* |
| 541 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 542 | % % |
| 543 | % % |
| 544 | % % |
| 545 | + I s G e o m e t r y % |
| 546 | % % |
| 547 | % % |
| 548 | % % |
| 549 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 550 | % |
| 551 | % IsGeometry() returns MagickTrue if the geometry specification is valid. |
| 552 | % Examples are 100, 100x200, x200, 100x200+10+20, +10+20, 200%, 200x200!, etc. |
| 553 | % |
| 554 | % The format of the IsGeometry method is: |
| 555 | % |
| 556 | % MagickBooleanType IsGeometry(const char *geometry) |
| 557 | % |
| 558 | % A description of each parameter follows: |
| 559 | % |
| 560 | % o geometry: This string is the geometry specification. |
| 561 | % |
| 562 | */ |
| 563 | MagickExport MagickBooleanType IsGeometry(const char *geometry) |
| 564 | { |
| 565 | GeometryInfo |
| 566 | geometry_info; |
| 567 | |
| 568 | MagickStatusType |
| 569 | flags; |
| 570 | |
| 571 | if (geometry == (const char *) NULL) |
| 572 | return(MagickFalse); |
| 573 | flags=ParseGeometry(geometry,&geometry_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 574 | return(flags != NoValue ? MagickTrue : MagickFalse); |
| 575 | } |
| 576 | |
| 577 | /* |
| 578 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 579 | % % |
| 580 | % % |
| 581 | % % |
| 582 | + I s S c e n e G e o m e t r y % |
| 583 | % % |
| 584 | % % |
| 585 | % % |
| 586 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 587 | % |
| 588 | % IsSceneGeometry() returns MagickTrue if the geometry is a valid scene |
| 589 | % specification (e.g. [1], [1-9], [1,7,4]). |
| 590 | % |
| 591 | % The format of the IsSceneGeometry method is: |
| 592 | % |
| 593 | % MagickBooleanType IsSceneGeometry(const char *geometry, |
| 594 | % const MagickBooleanType pedantic) |
| 595 | % |
| 596 | % A description of each parameter follows: |
| 597 | % |
| 598 | % o geometry: This string is the geometry specification. |
| 599 | % |
| 600 | % o pedantic: A value other than 0 invokes a more restrictive set of |
| 601 | % conditions for a valid specification (e.g. [1], [1-4], [4-1]). |
| 602 | % |
| 603 | */ |
| 604 | MagickExport MagickBooleanType IsSceneGeometry(const char *geometry, |
| 605 | const MagickBooleanType pedantic) |
| 606 | { |
| 607 | char |
| 608 | *p; |
| 609 | |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 610 | double |
| 611 | value; |
| 612 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 613 | if (geometry == (const char *) NULL) |
| 614 | return(MagickFalse); |
| 615 | p=(char *) geometry; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 616 | value=StringToDouble(geometry,&p); |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 617 | (void) value; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 618 | if (p == geometry) |
| 619 | return(MagickFalse); |
| 620 | if (strspn(geometry,"0123456789-, ") != strlen(geometry)) |
| 621 | return(MagickFalse); |
| 622 | if ((pedantic != MagickFalse) && (strchr(geometry,',') != (char *) NULL)) |
| 623 | return(MagickFalse); |
| 624 | return(MagickTrue); |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 629 | % % |
| 630 | % % |
| 631 | % % |
| 632 | % P a r s e A b s o l u t e G e o m e t r y % |
| 633 | % % |
| 634 | % % |
| 635 | % % |
| 636 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 637 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 638 | % ParseAbsoluteGeometry() returns a region as defined by the geometry string, |
| 639 | % without any modification by percentages or gravity. |
| 640 | % |
| 641 | % It currently just a wrapper around GetGeometry(), but may be expanded in |
| 642 | % the future to handle other positioning information. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 643 | % |
| 644 | % The format of the ParseAbsoluteGeometry method is: |
| 645 | % |
| 646 | % MagickStatusType ParseAbsoluteGeometry(const char *geometry, |
| 647 | % RectangleInfo *region_info) |
| 648 | % |
| 649 | % A description of each parameter follows: |
| 650 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 651 | % o geometry: The geometry string (e.g. "100x100+10+10"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 652 | % |
| 653 | % o region_info: the region as defined by the geometry string. |
| 654 | % |
| 655 | */ |
| 656 | MagickExport MagickStatusType ParseAbsoluteGeometry(const char *geometry, |
| 657 | RectangleInfo *region_info) |
| 658 | { |
| 659 | MagickStatusType |
| 660 | flags; |
| 661 | |
| 662 | flags=GetGeometry(geometry,®ion_info->x,®ion_info->y, |
| 663 | ®ion_info->width,®ion_info->height); |
| 664 | return(flags); |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 669 | % % |
| 670 | % % |
| 671 | % % |
| 672 | % P a r s e A f f i n e G e o m e t r y % |
| 673 | % % |
| 674 | % % |
| 675 | % % |
| 676 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 677 | % |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 678 | % ParseAffineGeometry() returns an affine matrix as defined by a string of 4 |
| 679 | % to 6 comma/space separated floating point values. |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 680 | % |
| 681 | % The affine matrix determinant is checked for validity of the values. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 682 | % |
| 683 | % The format of the ParseAffineGeometry method is: |
| 684 | % |
| 685 | % MagickStatusType ParseAffineGeometry(const char *geometry, |
| 686 | % AffineMatrix *affine_matrix,ExceptionInfo *exception) |
| 687 | % |
| 688 | % A description of each parameter follows: |
| 689 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 690 | % o geometry: The geometry string (e.g. "1.0,0.0,0.0,1.0,3.2,1.2"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 691 | % |
| 692 | % o affine_matrix: the affine matrix as defined by the geometry string. |
| 693 | % |
| 694 | % o exception: return any errors or warnings in this structure. |
| 695 | % |
| 696 | */ |
| 697 | MagickExport MagickStatusType ParseAffineGeometry(const char *geometry, |
| 698 | AffineMatrix *affine_matrix,ExceptionInfo *exception) |
| 699 | { |
| 700 | char |
| 701 | token[MaxTextExtent]; |
| 702 | |
| 703 | const char |
| 704 | *p; |
| 705 | |
| 706 | double |
| 707 | determinant; |
| 708 | |
| 709 | MagickStatusType |
| 710 | flags; |
| 711 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 712 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 713 | i; |
| 714 | |
| 715 | GetAffineMatrix(affine_matrix); |
| 716 | flags=NoValue; |
| 717 | p=(char *) geometry; |
| 718 | for (i=0; (*p != '\0') && (i < 6); i++) |
| 719 | { |
| 720 | GetMagickToken(p,&p,token); |
| 721 | if (*token == ',') |
| 722 | GetMagickToken(p,&p,token); |
| 723 | switch (i) |
| 724 | { |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 725 | case 0: |
| 726 | { |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 727 | affine_matrix->sx=StringToDouble(token,(char **) NULL); |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 728 | break; |
| 729 | } |
| 730 | case 1: |
| 731 | { |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 732 | affine_matrix->rx=StringToDouble(token,(char **) NULL); |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 733 | break; |
| 734 | } |
| 735 | case 2: |
| 736 | { |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 737 | affine_matrix->ry=StringToDouble(token,(char **) NULL); |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 738 | break; |
| 739 | } |
| 740 | case 3: |
| 741 | { |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 742 | affine_matrix->sy=StringToDouble(token,(char **) NULL); |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 743 | break; |
| 744 | } |
| 745 | case 4: |
| 746 | { |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 747 | affine_matrix->tx=StringToDouble(token,(char **) NULL); |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 748 | flags|=XValue; |
| 749 | break; |
| 750 | } |
| 751 | case 5: |
| 752 | { |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 753 | affine_matrix->ty=StringToDouble(token,(char **) NULL); |
cristy | c1acd84 | 2011-05-19 23:05:47 +0000 | [diff] [blame] | 754 | flags|=YValue; |
| 755 | break; |
| 756 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 757 | } |
| 758 | } |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 759 | determinant=(affine_matrix->sx*affine_matrix->sy-affine_matrix->rx* |
| 760 | affine_matrix->ry); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 761 | if (fabs(determinant) < MagickEpsilon) |
| 762 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
anthony | 92c93bd | 2012-03-19 14:02:47 +0000 | [diff] [blame] | 763 | "InvalidArgument","'%s' : 'Indeterminate Matrix'",geometry); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 764 | return(flags); |
| 765 | } |
| 766 | |
| 767 | /* |
| 768 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 769 | % % |
| 770 | % % |
| 771 | % % |
| 772 | % P a r s e G e o m e t r y % |
| 773 | % % |
| 774 | % % |
| 775 | % % |
| 776 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 777 | % |
| 778 | % ParseGeometry() parses a geometry specification and returns the sigma, |
| 779 | % rho, xi, and psi values. It also returns flags that indicates which |
| 780 | % of the four values (sigma, rho, xi, psi) were located in the string, and |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 781 | % whether the xi or pi values are negative. |
| 782 | % |
| 783 | % In addition, it reports if there are any of meta characters (%, !, <, >, @, |
| 784 | % and ^) flags present. It does not report the location of the percentage |
| 785 | % relative to the values. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 786 | % |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 787 | % Values may also be seperated by commas, colons, or slashes, and offsets. |
| 788 | % Offsets may be prefixed by multiple signs to make offset string |
| 789 | % substitutions easier to handle from shell scripts. |
| 790 | % For example: "-10-10", "-+10-+10", or "+-10+-10" will generate negtive |
| 791 | % offsets, while "+10+10", "++10++10", or "--10--10" will generate positive |
| 792 | % offsets. |
| 793 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 794 | % The format of the ParseGeometry method is: |
| 795 | % |
| 796 | % MagickStatusType ParseGeometry(const char *geometry, |
| 797 | % GeometryInfo *geometry_info) |
| 798 | % |
| 799 | % A description of each parameter follows: |
| 800 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 801 | % o geometry: The geometry string (e.g. "100x100+10+10"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 802 | % |
| 803 | % o geometry_info: returns the parsed width/height/x/y in this structure. |
| 804 | % |
| 805 | */ |
| 806 | MagickExport MagickStatusType ParseGeometry(const char *geometry, |
| 807 | GeometryInfo *geometry_info) |
| 808 | { |
| 809 | char |
| 810 | *p, |
| 811 | pedantic_geometry[MaxTextExtent], |
| 812 | *q; |
| 813 | |
| 814 | double |
| 815 | value; |
| 816 | |
cristy | f30f47d | 2011-09-06 14:40:59 +0000 | [diff] [blame] | 817 | int |
| 818 | c; |
| 819 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 820 | MagickStatusType |
| 821 | flags; |
| 822 | |
| 823 | /* |
| 824 | Remove whitespaces meta characters from geometry specification. |
| 825 | */ |
| 826 | assert(geometry_info != (GeometryInfo *) NULL); |
| 827 | flags=NoValue; |
| 828 | if ((geometry == (char *) NULL) || (*geometry == '\0')) |
| 829 | return(flags); |
cristy | 37e0b38 | 2011-06-07 13:31:21 +0000 | [diff] [blame] | 830 | if (strlen(geometry) >= (MaxTextExtent-1)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 831 | return(flags); |
| 832 | (void) CopyMagickString(pedantic_geometry,geometry,MaxTextExtent); |
| 833 | for (p=pedantic_geometry; *p != '\0'; ) |
| 834 | { |
| 835 | if (isspace((int) ((unsigned char) *p)) != 0) |
| 836 | { |
| 837 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 838 | continue; |
| 839 | } |
cristy | 35abcb7 | 2011-09-06 20:36:15 +0000 | [diff] [blame] | 840 | c=(int) ((unsigned char) *p); |
| 841 | switch (c) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 842 | { |
| 843 | case '%': |
| 844 | { |
| 845 | flags|=PercentValue; |
| 846 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 847 | break; |
| 848 | } |
| 849 | case '!': |
| 850 | { |
| 851 | flags|=AspectValue; |
| 852 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 853 | break; |
| 854 | } |
| 855 | case '<': |
| 856 | { |
| 857 | flags|=LessValue; |
| 858 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 859 | break; |
| 860 | } |
| 861 | case '>': |
| 862 | { |
| 863 | flags|=GreaterValue; |
| 864 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 865 | break; |
| 866 | } |
| 867 | case '^': |
| 868 | { |
| 869 | flags|=MinimumValue; |
| 870 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 871 | break; |
| 872 | } |
| 873 | case '@': |
| 874 | { |
| 875 | flags|=AreaValue; |
| 876 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 877 | break; |
| 878 | } |
| 879 | case '(': |
| 880 | case ')': |
| 881 | { |
| 882 | (void) CopyMagickString(p,p+1,MaxTextExtent); |
| 883 | break; |
| 884 | } |
cristy | 1ad6c87 | 2012-08-02 11:54:05 +0000 | [diff] [blame] | 885 | case 'x': |
| 886 | case 'X': |
| 887 | { |
| 888 | flags|=SeparatorValue; |
| 889 | p++; |
| 890 | break; |
| 891 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 892 | case '-': |
| 893 | case '+': |
| 894 | case ',': |
| 895 | case '0': |
| 896 | case '1': |
| 897 | case '2': |
| 898 | case '3': |
| 899 | case '4': |
| 900 | case '5': |
| 901 | case '6': |
| 902 | case '7': |
| 903 | case '8': |
| 904 | case '9': |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 905 | case '/': |
| 906 | case ':': |
cristy | 35f75ac | 2011-09-06 20:33:35 +0000 | [diff] [blame] | 907 | case 215: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 908 | { |
| 909 | p++; |
| 910 | break; |
| 911 | } |
| 912 | case '.': |
| 913 | { |
| 914 | p++; |
| 915 | flags|=DecimalValue; |
| 916 | break; |
| 917 | } |
| 918 | default: |
| 919 | return(flags); |
| 920 | } |
| 921 | } |
| 922 | /* |
| 923 | Parse rho, sigma, xi, psi, and optionally chi. |
| 924 | */ |
| 925 | p=pedantic_geometry; |
| 926 | if (*p == '\0') |
| 927 | return(flags); |
| 928 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 929 | value=StringToDouble(p,&q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 930 | if (LocaleNCompare(p,"0x",2) == 0) |
| 931 | value=(double) strtol(p,&q,10); |
cristy | 35f75ac | 2011-09-06 20:33:35 +0000 | [diff] [blame] | 932 | c=(int) ((unsigned char) *q); |
| 933 | if ((c == 215) || (*q == 'x') || (*q == 'X') || (*q == ',') || |
anthony | d130350 | 2010-05-11 12:00:43 +0000 | [diff] [blame] | 934 | (*q == '/') || (*q == ':') || (*q =='\0')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 935 | { |
| 936 | /* |
| 937 | Parse rho. |
| 938 | */ |
| 939 | q=p; |
| 940 | if (LocaleNCompare(p,"0x",2) == 0) |
| 941 | value=(double) strtol(p,&p,10); |
| 942 | else |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 943 | value=StringToDouble(p,&p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 944 | if (p != q) |
| 945 | { |
| 946 | flags|=RhoValue; |
| 947 | geometry_info->rho=value; |
| 948 | } |
| 949 | } |
| 950 | q=p; |
cristy | 35f75ac | 2011-09-06 20:33:35 +0000 | [diff] [blame] | 951 | c=(int) ((unsigned char) *p); |
| 952 | if ((c == 215) || (*p == 'x') || (*p == 'X') || (*p == ',') || (*p == '/') || |
cristy | f30f47d | 2011-09-06 14:40:59 +0000 | [diff] [blame] | 953 | (*p == ':')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 954 | { |
| 955 | /* |
| 956 | Parse sigma. |
| 957 | */ |
| 958 | p++; |
| 959 | while (isspace((int) ((unsigned char) *p)) != 0) |
| 960 | p++; |
cristy | 35f75ac | 2011-09-06 20:33:35 +0000 | [diff] [blame] | 961 | c=(int) ((unsigned char) *q); |
| 962 | if (((c != 215) && (*q != 'x') && (*q != 'X')) || ((*p != '+') && |
cristy | f30f47d | 2011-09-06 14:40:59 +0000 | [diff] [blame] | 963 | (*p != '-'))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 964 | { |
| 965 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 966 | value=StringToDouble(p,&p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 967 | if (p != q) |
| 968 | { |
| 969 | flags|=SigmaValue; |
| 970 | geometry_info->sigma=value; |
| 971 | } |
| 972 | } |
| 973 | } |
| 974 | while (isspace((int) ((unsigned char) *p)) != 0) |
| 975 | p++; |
anthony | d130350 | 2010-05-11 12:00:43 +0000 | [diff] [blame] | 976 | if ((*p == '+') || (*p == '-') || (*p == ',') || (*p == '/') || (*p == ':')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 977 | { |
| 978 | /* |
| 979 | Parse xi value. |
| 980 | */ |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 981 | if ((*p == ',') || (*p == '/') || (*p == ':') ) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 982 | p++; |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 983 | while ((*p == '+') || (*p == '-')) |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 984 | { |
| 985 | if (*p == '-') |
| 986 | flags^=XiNegative; /* negate sign */ |
| 987 | p++; |
| 988 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 989 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 990 | value=StringToDouble(p,&p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 991 | if (p != q) |
| 992 | { |
| 993 | flags|=XiValue; |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 994 | if ((flags & XiNegative) != 0) |
| 995 | value=(-value); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 996 | geometry_info->xi=value; |
| 997 | } |
| 998 | while (isspace((int) ((unsigned char) *p)) != 0) |
| 999 | p++; |
| 1000 | if ((*p == '+') || (*p == '-') || (*p == ',') || (*p == '/') || |
anthony | d130350 | 2010-05-11 12:00:43 +0000 | [diff] [blame] | 1001 | (*p == ':')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1002 | { |
| 1003 | /* |
| 1004 | Parse psi value. |
| 1005 | */ |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1006 | if ((*p == ',') || (*p == '/') || (*p == ':')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1007 | p++; |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1008 | while ((*p == '+') || (*p == '-')) |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 1009 | { |
| 1010 | if (*p == '-') |
| 1011 | flags^=PsiNegative; /* negate sign */ |
| 1012 | p++; |
| 1013 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1014 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 1015 | value=StringToDouble(p,&p); |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 1016 | if (p != q) |
| 1017 | { |
| 1018 | flags|=PsiValue; |
| 1019 | if ((flags & PsiNegative) != 0) |
| 1020 | value=(-value); |
| 1021 | geometry_info->psi=value; |
| 1022 | } |
| 1023 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1024 | while (isspace((int) ((unsigned char) *p)) != 0) |
| 1025 | p++; |
| 1026 | if ((*p == '+') || (*p == '-') || (*p == ',') || (*p == '/') || |
anthony | d130350 | 2010-05-11 12:00:43 +0000 | [diff] [blame] | 1027 | (*p == ':')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1028 | { |
| 1029 | /* |
| 1030 | Parse chi value. |
| 1031 | */ |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1032 | if ((*p == ',') || (*p == '/') || (*p == ':')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1033 | p++; |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1034 | while ((*p == '+') || (*p == '-')) |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 1035 | { |
| 1036 | if (*p == '-') |
| 1037 | flags^=ChiNegative; /* negate sign */ |
| 1038 | p++; |
| 1039 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1040 | q=p; |
cristy | dbdd0e3 | 2011-11-04 23:29:40 +0000 | [diff] [blame] | 1041 | value=StringToDouble(p,&p); |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 1042 | if (p != q) |
| 1043 | { |
| 1044 | flags|=ChiValue; |
| 1045 | if ((flags & ChiNegative) != 0) |
| 1046 | value=(-value); |
| 1047 | geometry_info->chi=value; |
| 1048 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1049 | } |
| 1050 | } |
| 1051 | if (strchr(pedantic_geometry,':') != (char *) NULL) |
| 1052 | { |
| 1053 | /* |
| 1054 | Normalize sampling factor (e.g. 4:2:2 => 2x1). |
| 1055 | */ |
| 1056 | geometry_info->rho/=geometry_info->sigma; |
| 1057 | geometry_info->sigma=1.0; |
| 1058 | if (geometry_info->xi == 0.0) |
| 1059 | geometry_info->sigma=2.0; |
| 1060 | } |
| 1061 | if (((flags & SigmaValue) == 0) && ((flags & XiValue) != 0) && |
| 1062 | ((flags & PsiValue) == 0)) |
| 1063 | { |
| 1064 | /* |
| 1065 | Support negative height values (e.g. 30x-20). |
| 1066 | */ |
| 1067 | geometry_info->sigma=geometry_info->xi; |
| 1068 | geometry_info->xi=0.0; |
| 1069 | flags|=SigmaValue; |
| 1070 | flags&=(~XiValue); |
| 1071 | } |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 1072 | if ((flags & PercentValue) != 0) |
cristy | 1ad6c87 | 2012-08-02 11:54:05 +0000 | [diff] [blame] | 1073 | { |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 1074 | if (((flags & SeparatorValue) == 0) && ((flags & SigmaValue) == 0)) |
cristy | 243769e | 2012-08-12 14:39:15 +0000 | [diff] [blame] | 1075 | geometry_info->sigma=geometry_info->rho; |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 1076 | if (((flags & SeparatorValue) != 0) && ((flags & RhoValue) == 0)) |
| 1077 | geometry_info->rho=geometry_info->sigma; |
cristy | 1ad6c87 | 2012-08-02 11:54:05 +0000 | [diff] [blame] | 1078 | } |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1079 | #if 0 |
| 1080 | /* Debugging Geometry */ |
cristy | 57936e0 | 2012-07-03 00:33:28 +0000 | [diff] [blame] | 1081 | (void) fprintf(stderr,"ParseGeometry...\n"); |
| 1082 | (void) fprintf(stderr,"Flags: %c %c %s %s %s\n", |
| 1083 | (flags & RhoValue) ? 'W' : ' ',(flags & SigmaValue) ? 'H' : ' ', |
| 1084 | (flags & XiValue) ? ((flags & XiNegative) ? "-X" : "+X") : " ", |
| 1085 | (flags & PsiValue) ? ((flags & PsiNegative) ? "-Y" : "+Y") : " ", |
| 1086 | (flags & ChiValue) ? ((flags & ChiNegative) ? "-Z" : "+Z") : " "); |
| 1087 | (void) fprintf(stderr,"Geometry: %lg,%lg,%lg,%lg,%lg\n",geometry_info->rho, |
| 1088 | geometry_info->sigma,geometry_info->xi,geometry_info->psi, |
| 1089 | geometry_info->chi); |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1090 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1091 | return(flags); |
| 1092 | } |
| 1093 | |
| 1094 | /* |
| 1095 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1096 | % % |
| 1097 | % % |
| 1098 | % % |
| 1099 | % P a r s e G r a v i t y G e o m e t r y % |
| 1100 | % % |
| 1101 | % % |
| 1102 | % % |
| 1103 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1104 | % |
| 1105 | % ParseGravityGeometry() returns a region as defined by the geometry string |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1106 | % with respect to the given image page (canvas) dimensions and the images |
| 1107 | % gravity setting. |
| 1108 | % |
| 1109 | % This is typically used for specifing a area within a given image for |
| 1110 | % cropping images to a smaller size, chopping out rows and or columns, or |
| 1111 | % resizing and positioning overlay images. |
| 1112 | % |
| 1113 | % Percentages are relative to image size and not page size, and are set to |
| 1114 | % nearest integer (pixel) size. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1115 | % |
| 1116 | % The format of the ParseGravityGeometry method is: |
| 1117 | % |
| 1118 | % MagickStatusType ParseGravityGeometry(Image *image,const char *geometry, |
| 1119 | % RectangeInfo *region_info,ExceptionInfo *exception) |
| 1120 | % |
| 1121 | % A description of each parameter follows: |
| 1122 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1123 | % o geometry: The geometry string (e.g. "100x100+10+10"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1124 | % |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 1125 | % o region_info: the region as defined by the geometry string with respect |
| 1126 | % to the image dimensions and its gravity. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1127 | % |
| 1128 | % o exception: return any errors or warnings in this structure. |
| 1129 | % |
| 1130 | */ |
| 1131 | MagickExport MagickStatusType ParseGravityGeometry(const Image *image, |
| 1132 | const char *geometry,RectangleInfo *region_info,ExceptionInfo *exception) |
| 1133 | { |
| 1134 | MagickStatusType |
| 1135 | flags; |
| 1136 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1137 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1138 | height, |
| 1139 | width; |
| 1140 | |
| 1141 | SetGeometry(image,region_info); |
| 1142 | if (image->page.width != 0) |
| 1143 | region_info->width=image->page.width; |
| 1144 | if (image->page.height != 0) |
| 1145 | region_info->height=image->page.height; |
| 1146 | flags=ParseAbsoluteGeometry(geometry,region_info); |
| 1147 | if (flags == NoValue) |
| 1148 | { |
| 1149 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
anthony | e5b3965 | 2012-04-21 05:37:29 +0000 | [diff] [blame] | 1150 | "InvalidGeometry","'%s'",geometry); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1151 | return(flags); |
| 1152 | } |
| 1153 | if ((flags & PercentValue) != 0) |
| 1154 | { |
| 1155 | GeometryInfo |
| 1156 | geometry_info; |
| 1157 | |
| 1158 | MagickStatusType |
| 1159 | status; |
| 1160 | |
| 1161 | PointInfo |
| 1162 | scale; |
| 1163 | |
| 1164 | /* |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1165 | Geometry is a percentage of the image size, not canvas size |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1166 | */ |
| 1167 | if (image->gravity != UndefinedGravity) |
| 1168 | flags|=XValue | YValue; |
| 1169 | status=ParseGeometry(geometry,&geometry_info); |
| 1170 | scale.x=geometry_info.rho; |
| 1171 | if ((status & RhoValue) == 0) |
| 1172 | scale.x=100.0; |
| 1173 | scale.y=geometry_info.sigma; |
| 1174 | if ((status & SigmaValue) == 0) |
| 1175 | scale.y=scale.x; |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 1176 | region_info->width=(size_t) floor((scale.x*image->columns/100.0)+0.5); |
| 1177 | region_info->height=(size_t) floor((scale.y*image->rows/100.0)+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1178 | } |
| 1179 | /* |
| 1180 | Adjust offset according to gravity setting. |
| 1181 | */ |
| 1182 | width=region_info->width; |
| 1183 | height=region_info->height; |
| 1184 | if (width == 0) |
| 1185 | region_info->width=image->page.width | image->columns; |
| 1186 | if (height == 0) |
| 1187 | region_info->height=image->page.height | image->rows; |
| 1188 | GravityAdjustGeometry(image->columns,image->rows,image->gravity,region_info); |
| 1189 | region_info->width=width; |
| 1190 | region_info->height=height; |
| 1191 | return(flags); |
| 1192 | } |
| 1193 | |
| 1194 | /* |
| 1195 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1196 | % % |
| 1197 | % % |
| 1198 | % % |
| 1199 | + P a r s e M e t a G e o m e t r y % |
| 1200 | % % |
| 1201 | % % |
| 1202 | % % |
| 1203 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1204 | % |
| 1205 | % ParseMetaGeometry() is similar to GetGeometry() except the returned |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1206 | % geometry is modified as determined by the meta characters: %, !, <, >, @, |
| 1207 | % and ^ in relation to image resizing. |
| 1208 | % |
| 1209 | % Final image dimensions are adjusted so as to preserve the aspect ratio as |
glennrp | dcabf6d | 2011-06-25 03:26:14 +0000 | [diff] [blame] | 1210 | % much as possible, while generating a integer (pixel) size, and fitting the |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1211 | % image within the specified geometry width and height. |
| 1212 | % |
| 1213 | % Flags are interpreted... |
anthony | 6634c53 | 2012-06-15 06:56:39 +0000 | [diff] [blame] | 1214 | % % geometry size is given percentage of original width and height given |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 1215 | % ! do not try to preserve aspect ratio |
| 1216 | % < only enlarge images smaller that geometry |
| 1217 | % > only shrink images larger than geometry |
| 1218 | % @ Fit image to contain at most this many pixels |
| 1219 | % ^ Contain the given geometry given, (minimal dimensions given) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1220 | % |
| 1221 | % The format of the ParseMetaGeometry method is: |
| 1222 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1223 | % MagickStatusType ParseMetaGeometry(const char *geometry,ssize_t *x, |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 1224 | % ssize_t *y, size_t *width,size_t *height) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1225 | % |
| 1226 | % A description of each parameter follows: |
| 1227 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1228 | % o geometry: The geometry string (e.g. "100x100+10+10"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1229 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1230 | % o x,y: The x and y offset, set according to the geometry specification. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1231 | % |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 1232 | % o width,height: The width and height of original image, modified by |
| 1233 | % the given geometry specification. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1234 | % |
| 1235 | */ |
| 1236 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1237 | static inline size_t MagickMax(const size_t x, |
| 1238 | const size_t y) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1239 | { |
| 1240 | if (x > y) |
| 1241 | return(x); |
| 1242 | return(y); |
| 1243 | } |
| 1244 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1245 | MagickExport MagickStatusType ParseMetaGeometry(const char *geometry,ssize_t *x, |
| 1246 | ssize_t *y,size_t *width,size_t *height) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1247 | { |
| 1248 | GeometryInfo |
| 1249 | geometry_info; |
| 1250 | |
| 1251 | MagickStatusType |
| 1252 | flags; |
| 1253 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1254 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1255 | former_height, |
| 1256 | former_width; |
| 1257 | |
| 1258 | /* |
| 1259 | Ensure the image geometry is valid. |
| 1260 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1261 | assert(x != (ssize_t *) NULL); |
| 1262 | assert(y != (ssize_t *) NULL); |
| 1263 | assert(width != (size_t *) NULL); |
| 1264 | assert(height != (size_t *) NULL); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1265 | if ((geometry == (char *) NULL) || (*geometry == '\0')) |
| 1266 | return(NoValue); |
| 1267 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",geometry); |
| 1268 | /* |
| 1269 | Parse geometry using GetGeometry. |
| 1270 | */ |
| 1271 | SetGeometryInfo(&geometry_info); |
| 1272 | former_width=(*width); |
| 1273 | former_height=(*height); |
| 1274 | flags=GetGeometry(geometry,x,y,width,height); |
| 1275 | if ((flags & PercentValue) != 0) |
| 1276 | { |
| 1277 | MagickStatusType |
| 1278 | flags; |
| 1279 | |
| 1280 | PointInfo |
| 1281 | scale; |
| 1282 | |
| 1283 | /* |
| 1284 | Geometry is a percentage of the image size. |
| 1285 | */ |
| 1286 | flags=ParseGeometry(geometry,&geometry_info); |
| 1287 | scale.x=geometry_info.rho; |
| 1288 | if ((flags & RhoValue) == 0) |
| 1289 | scale.x=100.0; |
| 1290 | scale.y=geometry_info.sigma; |
| 1291 | if ((flags & SigmaValue) == 0) |
| 1292 | scale.y=scale.x; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1293 | *width=(size_t) floor(scale.x*former_width/100.0+0.5); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1294 | *height=(size_t) floor(scale.y*former_height/100.0+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1295 | former_width=(*width); |
| 1296 | former_height=(*height); |
| 1297 | } |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1298 | if (((flags & AspectValue) != 0) || ((*width == former_width) && |
| 1299 | (*height == former_height))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1300 | { |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1301 | if ((flags & RhoValue) == 0) |
| 1302 | *width=former_width; |
| 1303 | if ((flags & SigmaValue) == 0) |
| 1304 | *height=former_height; |
| 1305 | } |
| 1306 | else |
| 1307 | { |
| 1308 | double |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1309 | scale_factor; |
| 1310 | |
| 1311 | /* |
| 1312 | Respect aspect ratio of the image. |
| 1313 | */ |
| 1314 | if ((former_width == 0) || (former_height == 0)) |
| 1315 | scale_factor=1.0; |
| 1316 | else |
| 1317 | if (((flags & RhoValue) != 0) && (flags & SigmaValue) != 0) |
| 1318 | { |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1319 | scale_factor=(double) *width/(double) former_width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1320 | if ((flags & MinimumValue) == 0) |
| 1321 | { |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1322 | if (scale_factor > ((double) *height/(double) former_height)) |
| 1323 | scale_factor=(double) *height/(double) former_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1324 | } |
| 1325 | else |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1326 | if (scale_factor < ((double) *height/(double) former_height)) |
| 1327 | scale_factor=(double) *height/(double) former_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1328 | } |
| 1329 | else |
| 1330 | if ((flags & RhoValue) != 0) |
| 1331 | { |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1332 | scale_factor=(double) *width/(double) former_width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1333 | if (((flags & MinimumValue) != 0) && |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1334 | (scale_factor < ((double) *width/(double) former_height))) |
| 1335 | scale_factor=(double) *width/(double) former_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1336 | } |
| 1337 | else |
| 1338 | { |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1339 | scale_factor=(double) *height/(double) former_height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1340 | if (((flags & MinimumValue) != 0) && |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1341 | (scale_factor < ((double) *height/(double) former_width))) |
| 1342 | scale_factor=(double) *height/(double) former_width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1343 | } |
cristy | 272f23a | 2011-03-30 00:37:11 +0000 | [diff] [blame] | 1344 | *width=MagickMax((size_t) floor(scale_factor*former_width+0.5),1UL); |
| 1345 | *height=MagickMax((size_t) floor(scale_factor*former_height+0.5),1UL); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1346 | } |
| 1347 | if ((flags & GreaterValue) != 0) |
| 1348 | { |
| 1349 | if (former_width < *width) |
| 1350 | *width=former_width; |
| 1351 | if (former_height < *height) |
| 1352 | *height=former_height; |
| 1353 | } |
| 1354 | if ((flags & LessValue) != 0) |
| 1355 | { |
| 1356 | if (former_width > *width) |
| 1357 | *width=former_width; |
| 1358 | if (former_height > *height) |
| 1359 | *height=former_height; |
| 1360 | } |
| 1361 | if ((flags & AreaValue) != 0) |
| 1362 | { |
cristy | 0762335 | 2011-12-07 13:04:03 +0000 | [diff] [blame] | 1363 | double |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1364 | area, |
| 1365 | distance; |
| 1366 | |
| 1367 | PointInfo |
| 1368 | scale; |
| 1369 | |
| 1370 | /* |
| 1371 | Geometry is a maximum area in pixels. |
| 1372 | */ |
| 1373 | (void) ParseGeometry(geometry,&geometry_info); |
| 1374 | area=geometry_info.rho; |
| 1375 | distance=sqrt((double) former_width*former_height); |
cristy | e42f658 | 2012-02-11 17:59:50 +0000 | [diff] [blame] | 1376 | scale.x=(double) former_width/(distance/sqrt((double) area)); |
| 1377 | scale.y=(double) former_height/(distance/sqrt((double) area)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1378 | if ((scale.x < (double) *width) || (scale.y < (double) *height)) |
| 1379 | { |
cristy | 11e0a87 | 2012-01-10 16:10:21 +0000 | [diff] [blame] | 1380 | *width=(size_t) (former_width/(distance/sqrt(area))+0.5); |
| 1381 | *height=(size_t) (former_height/(distance/sqrt(area))+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1382 | } |
| 1383 | former_width=(*width); |
| 1384 | former_height=(*height); |
| 1385 | } |
| 1386 | return(flags); |
| 1387 | } |
| 1388 | |
| 1389 | /* |
| 1390 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1391 | % % |
| 1392 | % % |
| 1393 | % % |
| 1394 | % P a r s e P a g e G e o m e t r y % |
| 1395 | % % |
| 1396 | % % |
| 1397 | % % |
| 1398 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1399 | % |
| 1400 | % ParsePageGeometry() returns a region as defined by the geometry string with |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1401 | % respect to the image page (canvas) dimensions. |
| 1402 | % |
| 1403 | % WARNING: Percentage dimensions remain relative to the actual image |
| 1404 | % dimensions, and not canvas dimensions. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1405 | % |
| 1406 | % The format of the ParsePageGeometry method is: |
| 1407 | % |
| 1408 | % MagickStatusType ParsePageGeometry(const Image *image, |
| 1409 | % const char *geometry,RectangeInfo *region_info, |
| 1410 | % ExceptionInfo *exception) |
| 1411 | % |
| 1412 | % A description of each parameter follows: |
| 1413 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1414 | % o geometry: The geometry string (e.g. "100x100+10+10"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1415 | % |
| 1416 | % o region_info: the region as defined by the geometry string with |
| 1417 | % respect to the image and its gravity. |
| 1418 | % |
| 1419 | % o exception: return any errors or warnings in this structure. |
| 1420 | % |
| 1421 | */ |
| 1422 | MagickExport MagickStatusType ParsePageGeometry(const Image *image, |
| 1423 | const char *geometry,RectangleInfo *region_info,ExceptionInfo *exception) |
| 1424 | { |
| 1425 | MagickStatusType |
| 1426 | flags; |
| 1427 | |
| 1428 | SetGeometry(image,region_info); |
| 1429 | if (image->page.width != 0) |
| 1430 | region_info->width=image->page.width; |
| 1431 | if (image->page.height != 0) |
| 1432 | region_info->height=image->page.height; |
| 1433 | flags=ParseAbsoluteGeometry(geometry,region_info); |
| 1434 | if (flags == NoValue) |
| 1435 | { |
| 1436 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
anthony | e5b3965 | 2012-04-21 05:37:29 +0000 | [diff] [blame] | 1437 | "InvalidGeometry","'%s'",geometry); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1438 | return(flags); |
| 1439 | } |
| 1440 | if ((flags & PercentValue) != 0) |
| 1441 | { |
| 1442 | region_info->width=image->columns; |
| 1443 | region_info->height=image->rows; |
| 1444 | } |
| 1445 | flags=ParseMetaGeometry(geometry,®ion_info->x,®ion_info->y, |
| 1446 | ®ion_info->width,®ion_info->height); |
cristy | 78afe01 | 2012-08-03 23:46:41 +0000 | [diff] [blame] | 1447 | if ((((flags & WidthValue) != 0) || ((flags & HeightValue) != 0)) && |
| 1448 | (((flags & PercentValue) != 0) || ((flags & SeparatorValue) == 0))) |
cristy | 64ad8f9 | 2012-08-03 00:58:24 +0000 | [diff] [blame] | 1449 | { |
| 1450 | if ((flags & WidthValue) == 0) |
| 1451 | region_info->width=region_info->height; |
| 1452 | if ((flags & HeightValue) == 0) |
| 1453 | region_info->height=region_info->width; |
| 1454 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1455 | return(flags); |
| 1456 | } |
| 1457 | |
| 1458 | /* |
| 1459 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1460 | % % |
| 1461 | % % |
| 1462 | % % |
| 1463 | % P a r s e R e g i o n G e o m e t r y % |
| 1464 | % % |
| 1465 | % % |
| 1466 | % % |
| 1467 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1468 | % |
| 1469 | % ParseRegionGeometry() returns a region as defined by the geometry string |
| 1470 | % with respect to the image dimensions and aspect ratio. |
| 1471 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1472 | % This is basically a wrapper around ParseMetaGeometry. This is typically |
| 1473 | % used to parse a geometry string to work out the final integer dimensions |
| 1474 | % for image resizing. |
| 1475 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1476 | % The format of the ParseRegionGeometry method is: |
| 1477 | % |
| 1478 | % MagickStatusType ParseRegionGeometry(const Image *image, |
| 1479 | % const char *geometry,RectangeInfo *region_info, |
| 1480 | % ExceptionInfo *exception) |
| 1481 | % |
| 1482 | % A description of each parameter follows: |
| 1483 | % |
anthony | d58e60c | 2011-03-30 00:24:34 +0000 | [diff] [blame] | 1484 | % o geometry: The geometry string (e.g. "100x100+10+10"). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1485 | % |
| 1486 | % o region_info: the region as defined by the geometry string. |
| 1487 | % |
| 1488 | % o exception: return any errors or warnings in this structure. |
| 1489 | % |
| 1490 | */ |
| 1491 | MagickExport MagickStatusType ParseRegionGeometry(const Image *image, |
| 1492 | const char *geometry,RectangleInfo *region_info,ExceptionInfo *exception) |
| 1493 | { |
| 1494 | MagickStatusType |
| 1495 | flags; |
| 1496 | |
| 1497 | SetGeometry(image,region_info); |
| 1498 | flags=ParseMetaGeometry(geometry,®ion_info->x,®ion_info->y, |
| 1499 | ®ion_info->width,®ion_info->height); |
| 1500 | if (flags == NoValue) |
| 1501 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
anthony | e5b3965 | 2012-04-21 05:37:29 +0000 | [diff] [blame] | 1502 | "InvalidGeometry","'%s'",geometry); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1503 | return(flags); |
| 1504 | } |
| 1505 | |
| 1506 | /* |
| 1507 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1508 | % % |
| 1509 | % % |
| 1510 | % % |
| 1511 | % S e t G e o m e t r y % |
| 1512 | % % |
| 1513 | % % |
| 1514 | % % |
| 1515 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1516 | % |
| 1517 | % SetGeometry() sets the geometry to its default values. |
| 1518 | % |
| 1519 | % The format of the SetGeometry method is: |
| 1520 | % |
| 1521 | % SetGeometry(const Image *image,RectangleInfo *geometry) |
| 1522 | % |
| 1523 | % A description of each parameter follows: |
| 1524 | % |
| 1525 | % o image: the image. |
| 1526 | % |
| 1527 | % o geometry: the geometry. |
| 1528 | % |
| 1529 | */ |
| 1530 | MagickExport void SetGeometry(const Image *image,RectangleInfo *geometry) |
| 1531 | { |
| 1532 | assert(image != (Image *) NULL); |
| 1533 | assert(image->signature == MagickSignature); |
| 1534 | if (image->debug != MagickFalse) |
| 1535 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1536 | assert(geometry != (RectangleInfo *) NULL); |
| 1537 | (void) ResetMagickMemory(geometry,0,sizeof(*geometry)); |
| 1538 | geometry->width=image->columns; |
| 1539 | geometry->height=image->rows; |
| 1540 | } |
| 1541 | |
| 1542 | /* |
| 1543 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1544 | % % |
| 1545 | % % |
| 1546 | % % |
| 1547 | % S e t G e o m e t r y I n f o % |
| 1548 | % % |
| 1549 | % % |
| 1550 | % % |
| 1551 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1552 | % |
| 1553 | % SetGeometryInfo sets the GeometryInfo structure to its default values. |
| 1554 | % |
| 1555 | % The format of the SetGeometryInfo method is: |
| 1556 | % |
| 1557 | % SetGeometryInfo(GeometryInfo *geometry_info) |
| 1558 | % |
| 1559 | % A description of each parameter follows: |
| 1560 | % |
| 1561 | % o geometry_info: the geometry info structure. |
| 1562 | % |
| 1563 | */ |
| 1564 | MagickExport void SetGeometryInfo(GeometryInfo *geometry_info) |
| 1565 | { |
| 1566 | assert(geometry_info != (GeometryInfo *) NULL); |
| 1567 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 1568 | (void) ResetMagickMemory(geometry_info,0,sizeof(*geometry_info)); |
| 1569 | } |