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libDXF 0.0.1
A library with DXF related functions written in C.
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endblk.c
Go to the documentation of this file.
00001 00036 #include "endblk.h" 00037 00038 00052 DxfEndblk * 00053 dxf_endblk_new () 00054 { 00055 #if DEBUG 00056 DXF_DEBUG_BEGIN 00057 #endif 00058 DxfEndblk *endblk = NULL; 00059 size_t size; 00060 00061 size = sizeof (DxfEndblk); 00062 /* avoid malloc of 0 bytes */ 00063 if (size == 0) size = 1; 00064 if ((endblk = malloc (size)) == NULL) 00065 { 00066 fprintf (stderr, 00067 (_("Error in %s () could not allocate memory for a DxfEndblk struct.\n")), 00068 __FUNCTION__); 00069 endblk = NULL; 00070 } 00071 else 00072 { 00073 memset (endblk, 0, size); 00074 } 00075 #if DEBUG 00076 DXF_DEBUG_END 00077 #endif 00078 return (endblk); 00079 } 00080 00081 00095 DxfEndblk * 00096 dxf_endblk_init 00097 ( 00098 DxfEndblk *endblk 00100 ) 00101 { 00102 #if DEBUG 00103 DXF_DEBUG_BEGIN 00104 #endif 00105 /* Do some basic checks. */ 00106 if (endblk == NULL) 00107 { 00108 fprintf (stderr, 00109 (_("Warning in %s () a NULL pointer was passed.\n")), 00110 __FUNCTION__); 00111 endblk = dxf_endblk_new (); 00112 } 00113 if (endblk == NULL) 00114 { 00115 fprintf (stderr, 00116 (_("Error in %s () could not allocate memory for a DxfEndblk struct.\n")), 00117 __FUNCTION__); 00118 return (NULL); 00119 } 00120 dxf_endblk_set_id_code (endblk, 0); 00121 dxf_endblk_set_layer (endblk, strdup (DXF_DEFAULT_LAYER)); 00122 dxf_endblk_set_dictionary_owner_soft (endblk, strdup ("")); 00123 #if DEBUG 00124 DXF_DEBUG_END 00125 #endif 00126 return (endblk); 00127 } 00128 00152 DxfEndblk * 00153 dxf_endblk_read 00154 ( 00155 DxfFile *fp, 00157 DxfEndblk *endblk 00159 ) 00160 { 00161 #if DEBUG 00162 DXF_DEBUG_BEGIN 00163 #endif 00164 char *temp_string = NULL; 00165 00166 /* Do some basic checks. */ 00167 if (fp == NULL) 00168 { 00169 fprintf (stderr, 00170 (_("Error in %s () a NULL file pointer was passed.\n")), 00171 __FUNCTION__); 00172 /* Clean up. */ 00173 free (temp_string); 00174 return (NULL); 00175 } 00176 if (endblk == NULL) 00177 { 00178 fprintf (stderr, 00179 (_("Warning in %s () a NULL pointer was passed.\n")), 00180 __FUNCTION__); 00181 endblk = dxf_endblk_new (); 00182 endblk = dxf_endblk_init (endblk); 00183 } 00184 fscanf (fp->fp, "%[^\n]", temp_string); 00185 while (strcmp (temp_string, "0") != 0) 00186 { 00187 if (ferror (fp->fp)) 00188 { 00189 fprintf (stderr, 00190 (_("Error in %s () while reading from: %s in line: %d.\n")), 00191 __FUNCTION__, fp->filename, fp->line_number); 00192 fclose (fp->fp); 00193 /* Clean up. */ 00194 free (temp_string); 00195 return (NULL); 00196 } 00197 else if (strcmp (temp_string, "5") == 0) 00198 { 00199 /* Now follows a string containing a sequential 00200 * id number. */ 00201 fscanf (fp->fp, "%x\n", &endblk->id_code); 00202 } 00203 else if (strcmp (temp_string, "8") == 0) 00204 { 00205 /* Now follows a string containing a layer name. */ 00206 fscanf (fp->fp, "%s\n", endblk->layer); 00207 } 00208 else if (strcmp (temp_string, "330") == 0) 00209 { 00210 /* Now follows a string containing Soft-pointer 00211 * ID/handle to owner object. */ 00212 fscanf (fp->fp, "%s\n", endblk->dictionary_owner_soft); 00213 } 00214 else if (strcmp (temp_string, "999") == 0) 00215 { 00216 /* Now follows a string containing a comment. */ 00217 fscanf (fp->fp, "%s\n", temp_string); 00218 fprintf (stdout, "DXF comment: %s\n", temp_string); 00219 } 00220 else 00221 { 00222 fprintf (stderr, 00223 (_("Warning in %s () unknown string tag found while reading from: %s in line: %d.\n")), 00224 __FUNCTION__, fp->filename, fp->line_number); 00225 } 00226 } 00227 /* Handle ommitted members and/or illegal values. */ 00228 if (strcmp (endblk->layer, "") == 0) 00229 { 00230 endblk->layer = strdup (DXF_DEFAULT_LAYER); 00231 } 00232 /* Clean up. */ 00233 free (temp_string); 00234 #if DEBUG 00235 DXF_DEBUG_END 00236 #endif 00237 return (endblk); 00238 } 00239 00240 00253 int 00254 dxf_endblk_write 00255 ( 00256 DxfFile *fp, 00258 DxfEndblk *endblk 00260 ) 00261 { 00262 #if DEBUG 00263 DXF_DEBUG_BEGIN 00264 #endif 00265 /* Do some basic checks. */ 00266 if (fp == NULL) 00267 { 00268 fprintf (stderr, 00269 (_("Error in %s () a NULL file pointer was passed.\n")), 00270 __FUNCTION__); 00271 return (EXIT_FAILURE); 00272 } 00273 if (endblk == NULL) 00274 { 00275 fprintf (stderr, 00276 (_("Error in %s () a NULL pointer was passed.\n")), 00277 __FUNCTION__); 00278 return (EXIT_FAILURE); 00279 } 00280 /* Start writing output. */ 00281 fprintf (fp->fp, " 0\nENDBLK\n"); 00282 if (fp->acad_version_number >= AutoCAD_13) 00283 { 00284 fprintf (fp->fp, " 5\n%x\n", dxf_endblk_get_id_code (endblk)); 00285 } 00296 if (fp->acad_version_number >= AutoCAD_13) 00297 { 00298 fprintf (fp->fp, "100\nAcDbEntity\n"); 00299 fprintf (fp->fp, " 8\n%s\n", dxf_endblk_get_layer (endblk)); 00300 fprintf (fp->fp, "100\nAcDbBlockEnd\n"); 00301 } 00302 #if DEBUG 00303 DXF_DEBUG_END 00304 #endif 00305 return (EXIT_SUCCESS); 00306 } 00307 00308 00322 int 00323 dxf_endblk_free 00324 ( 00325 DxfEndblk *endblk 00327 ) 00328 { 00329 #if DEBUG 00330 DXF_DEBUG_BEGIN 00331 #endif 00332 /* Do some basic checks. */ 00333 if (endblk == NULL) 00334 { 00335 fprintf (stderr, 00336 (_("Error in %s () a NULL pointer was passed.\n")), 00337 __FUNCTION__); 00338 return (EXIT_FAILURE); 00339 } 00340 free (dxf_endblk_get_layer (endblk)); 00341 free (dxf_endblk_get_dictionary_owner_soft (endblk)); 00342 free (endblk); 00343 endblk = NULL; 00344 #if DEBUG 00345 DXF_DEBUG_END 00346 #endif 00347 return (EXIT_SUCCESS); 00348 } 00349 00350 00362 int 00363 dxf_endblk_get_id_code 00364 ( 00365 DxfEndblk *endblk 00367 ) 00368 { 00369 #if DEBUG 00370 DXF_DEBUG_BEGIN 00371 #endif 00372 int result; 00373 00374 /* Do some basic checks. */ 00375 if (endblk == NULL) 00376 { 00377 fprintf (stderr, 00378 (_("Error in %s () a NULL pointer was passed.\n")), 00379 __FUNCTION__); 00380 return (EXIT_FAILURE); 00381 } 00382 if (endblk->id_code < 0) 00383 { 00384 fprintf (stderr, 00385 (_("Error in %s () a negative value was found in the id-code member.\n")), 00386 __FUNCTION__); 00387 return (EXIT_FAILURE); 00388 } 00389 result = endblk->id_code; 00390 #if DEBUG 00391 DXF_DEBUG_END 00392 #endif 00393 return (result); 00394 } 00395 00396 00406 DxfEndblk * 00407 dxf_endblk_set_id_code 00408 ( 00409 DxfEndblk *endblk, 00411 int id_code 00415 ) 00416 { 00417 #if DEBUG 00418 DXF_DEBUG_BEGIN 00419 #endif 00420 /* Do some basic checks. */ 00421 if (endblk == NULL) 00422 { 00423 fprintf (stderr, 00424 (_("Error in %s () a NULL pointer was passed.\n")), 00425 __FUNCTION__); 00426 return (NULL); 00427 } 00428 if (id_code < 0) 00429 { 00430 fprintf (stderr, 00431 (_("Error in %s () a negative id-code value was passed.\n")), 00432 __FUNCTION__); 00433 return (NULL); 00434 } 00435 endblk->id_code = id_code; 00436 #if DEBUG 00437 DXF_DEBUG_END 00438 #endif 00439 return (endblk); 00440 } 00441 00442 00454 char * 00455 dxf_endblk_get_layer 00456 ( 00457 DxfEndblk *endblk 00459 ) 00460 { 00461 #if DEBUG 00462 DXF_DEBUG_BEGIN 00463 #endif 00464 char *result = NULL; 00465 00466 /* Do some basic checks. */ 00467 if (endblk == NULL) 00468 { 00469 fprintf (stderr, 00470 (_("Error in %s () a NULL pointer was passed.\n")), 00471 __FUNCTION__); 00472 return (NULL); 00473 } 00474 if (endblk->layer == NULL) 00475 { 00476 fprintf (stderr, 00477 (_("Error in %s () a NULL pointer was found in the layer member.\n")), 00478 __FUNCTION__); 00479 return (NULL); 00480 } 00481 result = strdup (endblk->layer); 00482 #if DEBUG 00483 DXF_DEBUG_END 00484 #endif 00485 return (result); 00486 } 00487 00488 00498 DxfEndblk * 00499 dxf_endblk_set_layer 00500 ( 00501 DxfEndblk *endblk, 00503 char *layer 00505 ) 00506 { 00507 #if DEBUG 00508 DXF_DEBUG_BEGIN 00509 #endif 00510 /* Do some basic checks. */ 00511 if (endblk == NULL) 00512 { 00513 fprintf (stderr, 00514 (_("Error in %s () a NULL pointer was passed.\n")), 00515 __FUNCTION__); 00516 return (NULL); 00517 } 00518 if (layer == NULL) 00519 { 00520 fprintf (stderr, 00521 (_("Error in %s () a NULL pointer was passed.\n")), 00522 __FUNCTION__); 00523 return (NULL); 00524 } 00525 endblk->layer = strdup (layer); 00526 #if DEBUG 00527 DXF_DEBUG_END 00528 #endif 00529 return (endblk); 00530 } 00531 00532 00547 char * 00548 dxf_endblk_get_dictionary_owner_soft 00549 ( 00550 DxfEndblk *endblk 00552 ) 00553 { 00554 #if DEBUG 00555 DXF_DEBUG_BEGIN 00556 #endif 00557 char *result; 00558 00559 /* Do some basic checks. */ 00560 if (endblk == NULL) 00561 { 00562 fprintf (stderr, 00563 (_("Error in %s () a NULL pointer was passed.\n")), 00564 __FUNCTION__); 00565 return (NULL); 00566 } 00567 if (endblk->dictionary_owner_soft == NULL) 00568 { 00569 fprintf (stderr, 00570 (_("Error in %s () a NULL pointer was found in the dictionary_owner_soft member.\n")), 00571 __FUNCTION__); 00572 return (NULL); 00573 } 00574 result = strdup (endblk->dictionary_owner_soft); 00575 #if DEBUG 00576 DXF_DEBUG_END 00577 #endif 00578 return (result); 00579 } 00580 00581 00592 DxfEndblk * 00593 dxf_endblk_set_dictionary_owner_soft 00594 ( 00595 DxfEndblk *endblk, 00597 char *dictionary_owner_soft 00600 ) 00601 { 00602 #if DEBUG 00603 DXF_DEBUG_BEGIN 00604 #endif 00605 /* Do some basic checks. */ 00606 if (endblk == NULL) 00607 { 00608 fprintf (stderr, 00609 (_("Error in %s () a NULL pointer was passed.\n")), 00610 __FUNCTION__); 00611 return (NULL); 00612 } 00613 if (dictionary_owner_soft == NULL) 00614 { 00615 fprintf (stderr, 00616 (_("Error in %s () a NULL pointer was passed.\n")), 00617 __FUNCTION__); 00618 return (NULL); 00619 } 00620 endblk->dictionary_owner_soft = strdup (dictionary_owner_soft); 00621 #if DEBUG 00622 DXF_DEBUG_END 00623 #endif 00624 return (endblk); 00625 } 00626 00627 00628 /* EOF */
