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libDXF 0.0.1
A library with DXF related functions written in C.
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object.c
Go to the documentation of this file.
00001 00036 #include "object.h" 00037 00038 00044 DxfObject * 00045 dxf_object_new () 00046 { 00047 #if DEBUG 00048 DXF_DEBUG_BEGIN 00049 #endif 00050 DxfObject *object = NULL; 00051 size_t size; 00052 00053 size = sizeof (DxfObject); 00054 /* avoid malloc of 0 bytes */ 00055 if (size == 0) size = 1; 00056 if ((object = malloc (size)) == NULL) 00057 { 00058 fprintf (stderr, 00059 (_("Error in %s () could not allocate memory for a DxfObject struct.\n")), 00060 __FUNCTION__); 00061 object = NULL; 00062 } 00063 else 00064 { 00065 memset (object, 0, size); 00066 } 00067 #if DEBUG 00068 DXF_DEBUG_END 00069 #endif 00070 return (object); 00071 } 00072 00073 00081 DxfObject * 00082 dxf_object_init 00083 ( 00084 DxfObject *object 00086 ) 00087 { 00088 #if DEBUG 00089 DXF_DEBUG_BEGIN 00090 #endif 00091 int i; 00092 00093 /* Do some basic checks. */ 00094 if (object == NULL) 00095 { 00096 fprintf (stderr, 00097 (_("Warning in %s () a NULL pointer was passed.\n")), 00098 __FUNCTION__); 00099 object = dxf_object_new (); 00100 } 00101 if (object == NULL) 00102 { 00103 fprintf (stderr, 00104 (_("Error in %s () could not allocate memory for a DxfObject struct.\n")), 00105 __FUNCTION__); 00106 return (NULL); 00107 } 00108 object->entity_type = UNKNOWN_ENTITY; 00109 for (i = 0; i < DXF_MAX_PARAM; i++) 00110 { 00112 } 00113 object->next = NULL; 00114 #if DEBUG 00115 DXF_DEBUG_END 00116 #endif 00117 return (object); 00118 } 00119 00120 00126 int 00127 dxf_object_write_objects 00128 ( 00129 DxfFile *fp, 00131 DxfObject *dxf_objects_list 00133 ) 00134 { 00135 #if DEBUG 00136 DXF_DEBUG_BEGIN 00137 #endif 00138 00139 #if DEBUG 00140 DXF_DEBUG_END 00141 #endif 00142 return (EXIT_SUCCESS); 00143 } 00144 00145 00153 int 00154 dxf_object_free 00155 ( 00156 DxfObject *object 00159 ) 00160 { 00161 #if DEBUG 00162 DXF_DEBUG_BEGIN 00163 #endif 00164 /* Do some basic checks. */ 00165 if (object == NULL) 00166 { 00167 fprintf (stderr, 00168 (_("Error in %s () a NULL pointer was passed.\n")), 00169 __FUNCTION__); 00170 return (EXIT_FAILURE); 00171 } 00172 if (object->next != NULL) 00173 { 00174 fprintf (stderr, 00175 (_("Error in %s () pointer to next was not NULL.\n")), 00176 __FUNCTION__); 00177 return (EXIT_FAILURE); 00178 } 00179 free (object); 00180 object = NULL; 00181 #if DEBUG 00182 DXF_DEBUG_END 00183 #endif 00184 return (EXIT_SUCCESS); 00185 } 00186 00187 00193 void 00194 dxf_object_free_chain 00195 ( 00196 DxfObject *objects 00198 ) 00199 { 00200 #ifdef DEBUG 00201 DXF_DEBUG_BEGIN 00202 #endif 00203 if (objects == NULL) 00204 { 00205 fprintf (stderr, 00206 (_("Warning in %s () a NULL pointer was passed.\n")), 00207 __FUNCTION__); 00208 } 00209 while (objects != NULL) 00210 { 00211 struct DxfObject *iter = objects->next; 00212 dxf_object_free (objects); 00213 objects = (DxfObject *) iter; 00214 } 00215 #if DEBUG 00216 DXF_DEBUG_END 00217 #endif 00218 } 00219 00220 00228 DxfEntityType * 00229 dxf_object_get_entity_type 00230 ( 00231 DxfObject *object 00233 ) 00234 { 00235 #if DEBUG 00236 DXF_DEBUG_BEGIN 00237 #endif 00238 /* Do some basic checks. */ 00239 if (object == NULL) 00240 { 00241 fprintf (stderr, 00242 (_("Error in %s () a NULL pointer was passed.\n")), 00243 __FUNCTION__); 00244 return (NULL); 00245 } 00246 if (object->entity_type == 0) 00247 { 00248 fprintf (stderr, 00249 (_("Warning in %s () a zero value was found.\n")), 00250 __FUNCTION__); 00251 } 00252 #if DEBUG 00253 DXF_DEBUG_END 00254 #endif 00255 return ((DxfEntityType *) object->entity_type); 00256 } 00257 00258 00262 DxfObject * 00263 dxf_object_set_entity_type 00264 ( 00265 DxfObject *object, 00267 DxfEntityType entity_type 00270 ) 00271 { 00272 #if DEBUG 00273 DXF_DEBUG_BEGIN 00274 #endif 00275 /* Do some basic checks. */ 00276 if (object == NULL) 00277 { 00278 fprintf (stderr, 00279 (_("Error in %s () a NULL pointer was passed.\n")), 00280 __FUNCTION__); 00281 return (NULL); 00282 } 00283 if (entity_type == 0) 00284 { 00285 fprintf (stderr, 00286 (_("Error in %s () a NULL pointer was passed.\n")), 00287 __FUNCTION__); 00288 return (NULL); 00289 } 00290 object->entity_type = entity_type; 00291 #if DEBUG 00292 DXF_DEBUG_END 00293 #endif 00294 return (object); 00295 } 00296 00297 00306 DxfObject * 00307 dxf_object_get_next 00308 ( 00309 DxfObject *object 00311 ) 00312 { 00313 #if DEBUG 00314 DXF_DEBUG_BEGIN 00315 #endif 00316 /* Do some basic checks. */ 00317 if (object == NULL) 00318 { 00319 fprintf (stderr, 00320 (_("Error in %s () a NULL pointer was passed.\n")), 00321 __FUNCTION__); 00322 return (NULL); 00323 } 00324 if (object->next == NULL) 00325 { 00326 fprintf (stderr, 00327 (_("Error in %s () a NULL pointer was found.\n")), 00328 __FUNCTION__); 00329 return (NULL); 00330 } 00331 #if DEBUG 00332 DXF_DEBUG_END 00333 #endif 00334 return ((DxfObject *) object->next); 00335 } 00336 00337 00342 DxfObject * 00343 dxf_object_set_next 00344 ( 00345 DxfObject *object, 00347 DxfObject *next 00349 ) 00350 { 00351 #if DEBUG 00352 DXF_DEBUG_BEGIN 00353 #endif 00354 /* Do some basic checks. */ 00355 if (object == NULL) 00356 { 00357 fprintf (stderr, 00358 (_("Error in %s () a NULL pointer was passed.\n")), 00359 __FUNCTION__); 00360 return (NULL); 00361 } 00362 if (next == NULL) 00363 { 00364 fprintf (stderr, 00365 (_("Error in %s () a NULL pointer was passed.\n")), 00366 __FUNCTION__); 00367 return (NULL); 00368 } 00369 object->next = (struct DxfObject *) next; 00370 #if DEBUG 00371 DXF_DEBUG_END 00372 #endif 00373 return (object); 00374 } 00375 00376 00385 DxfObject * 00386 dxf_object_get_last 00387 ( 00388 DxfObject *object 00390 ) 00391 { 00392 #if DEBUG 00393 DXF_DEBUG_BEGIN 00394 #endif 00395 /* Do some basic checks. */ 00396 if (object == NULL) 00397 { 00398 fprintf (stderr, 00399 (_("Error in %s () a NULL pointer was passed.\n")), 00400 __FUNCTION__); 00401 return (NULL); 00402 } 00403 if (object->next == NULL) 00404 { 00405 fprintf (stderr, 00406 (_("Warning in %s () a NULL pointer was found.\n")), 00407 __FUNCTION__); 00408 return ((DxfObject *) object); 00409 } 00410 DxfObject *iter = (DxfObject *) object->next; 00411 while (iter->next != NULL) 00412 { 00413 iter = (DxfObject *) iter->next; 00414 } 00415 #if DEBUG 00416 DXF_DEBUG_END 00417 #endif 00418 return ((DxfObject *) iter); 00419 } 00420 00421 00422 /* EOF */
