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libDXF 0.0.1
A library with DXF related functions written in C.
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viewport.c
Go to the documentation of this file.
00001 00035 #include "viewport.h" 00036 00037 00049 DxfViewport * 00050 dxf_viewport_new () 00051 { 00052 #if DEBUG 00053 DXF_DEBUG_BEGIN 00054 #endif 00055 DxfViewport *viewport = NULL; 00056 size_t size; 00057 00058 size = sizeof (DxfViewport); 00059 /* avoid malloc of 0 bytes */ 00060 if (size == 0) size = 1; 00061 if ((viewport = malloc (size)) == NULL) 00062 { 00063 fprintf (stderr, 00064 (_("Error in %s () could not allocate memory for a DxfViewport struct.\n")), 00065 __FUNCTION__); 00066 viewport = NULL; 00067 } 00068 else 00069 { 00070 memset (viewport, 0, size); 00071 } 00072 #if DEBUG 00073 DXF_DEBUG_END 00074 #endif 00075 return (viewport); 00076 } 00077 00078 00092 DxfViewport * 00093 dxf_viewport_init 00094 ( 00095 DxfViewport *viewport 00097 ) 00098 { 00099 #if DEBUG 00100 DXF_DEBUG_BEGIN 00101 #endif 00102 int i; 00103 00104 /* Do some basic checks. */ 00105 if (viewport == NULL) 00106 { 00107 fprintf (stderr, 00108 (_("Warning in %s () a NULL pointer was passed.\n")), 00109 __FUNCTION__); 00110 viewport = dxf_viewport_new (); 00111 } 00112 if (viewport == NULL) 00113 { 00114 fprintf (stderr, 00115 (_("Error in %s () could not allocate memory for a DxfViewport struct.\n")), 00116 __FUNCTION__); 00117 return (NULL); 00118 } 00119 viewport->id_code = 0; 00120 viewport->linetype = strdup (DXF_DEFAULT_LINETYPE); 00121 viewport->layer = strdup (DXF_DEFAULT_LAYER); 00122 viewport->x0 = 0.0; 00123 viewport->y0 = 0.0; 00124 viewport->z0 = 0.0; 00125 viewport->elevation = 0.0; 00126 viewport->thickness = 0.0; 00127 viewport->linetype_scale = DXF_DEFAULT_LINETYPE_SCALE; 00128 viewport->visibility = DXF_DEFAULT_VISIBILITY; 00129 viewport->width = 0.0; 00130 viewport->height = 0.0; 00131 viewport->status = 0; 00132 viewport->id = 1; /* Always 1. */ 00133 viewport->color = DXF_COLOR_BYLAYER; 00134 viewport->paperspace = DXF_PAPERSPACE; /* Always on PAPERSPACE. */ 00135 viewport->app_name = strdup ("ACAD"); /* Always "ACAD". */ 00136 viewport->viewport_data = strdup ("MVIEW"); /* Always "MVIEW". */ 00137 viewport->window_descriptor_begin = strdup ("{"); /* Always "{". */ 00138 viewport->extended_entity_data_version = 16; 00139 viewport->x_target = 0.0; 00140 viewport->y_target = 0.0; 00141 viewport->z_target = 0.0; 00142 viewport->x_direction = 0.0; 00143 viewport->y_direction = 0.0; 00144 viewport->z_direction = 0.0; 00145 viewport->view_twist_angle = 0.0; 00146 viewport->view_height = 0.0; 00147 viewport->x_center = 0.0; 00148 viewport->y_center = 0.0; 00149 viewport->perspective_lens_length = 0.0; 00150 viewport->front_plane_offset = 0.0; 00151 viewport->back_plane_offset = 0.0; 00152 viewport->view_mode = 0; 00153 viewport->circle_zoom_percent = 0; 00154 viewport->fast_zoom_setting = 0; 00155 viewport->UCSICON_setting = 0; 00156 viewport->snap_on = 0; 00157 viewport->grid_on = 0; 00158 viewport->snap_style = 0; 00159 viewport->snap_isopair = 0; 00160 viewport->snap_rotation_angle = 0.0; 00161 viewport->x_snap_base = 0.0; 00162 viewport->y_snap_base = 0.0; 00163 viewport->x_snap_spacing = 0.0; 00164 viewport->y_snap_spacing = 0.0; 00165 viewport->x_grid_spacing = 0.0; 00166 viewport->y_grid_spacing = 0.0; 00167 viewport->plot_flag = 0; 00168 viewport->frozen_layer_list_begin = strdup ("{"); /* Always "{". */ 00176 for (i = 0; i < DXF_MAX_LAYERS; i++) 00177 { 00178 viewport->frozen_layers[i] = strdup (""); 00179 } 00180 viewport->frozen_layer_list_end = strdup ("}"); /* Always "}". */ 00181 viewport->window_descriptor_end = strdup ("}"); /* Always "}". */ 00182 viewport->dictionary_owner_soft = strdup (""); 00183 viewport->dictionary_owner_hard = strdup (""); 00184 viewport->next = NULL; 00185 #if DEBUG 00186 DXF_DEBUG_END 00187 #endif 00188 return (viewport); 00189 } 00190 00191 00210 DxfViewport * 00211 dxf_viewport_read 00212 ( 00213 DxfFile *fp, 00215 DxfViewport *viewport 00217 ) 00218 { 00219 #if DEBUG 00220 DXF_DEBUG_BEGIN 00221 #endif 00222 char *temp_string = NULL; 00223 00224 /* Do some basic checks. */ 00225 if (fp == NULL) 00226 { 00227 fprintf (stderr, 00228 (_("Error in %s () a NULL file pointer was passed.\n")), 00229 __FUNCTION__); 00230 /* Clean up. */ 00231 free (temp_string); 00232 return (NULL); 00233 } 00234 if (viewport == NULL) 00235 { 00236 fprintf (stderr, 00237 (_("Warning in %s () a NULL pointer was passed.\n")), 00238 __FUNCTION__); 00239 viewport = dxf_viewport_new (); 00240 viewport = dxf_viewport_init (viewport); 00241 } 00242 (fp->line_number)++; 00243 fscanf (fp->fp, "%[^\n]", temp_string); 00244 while (strcmp (temp_string, "0") != 0) 00245 { 00246 if (ferror (fp->fp)) 00247 { 00248 fprintf (stderr, 00249 (_("Error in %s () while reading from: %s in line: %d.\n")), 00250 __FUNCTION__, fp->filename, fp->line_number); 00251 fclose (fp->fp); 00252 /* Clean up. */ 00253 free (temp_string); 00254 return (NULL); 00255 } 00256 if (strcmp (temp_string, "5") == 0) 00257 { 00258 /* Now follows a string containing a sequential 00259 * id number. */ 00260 (fp->line_number)++; 00261 fscanf (fp->fp, "%x\n", &viewport->id_code); 00262 } 00263 else if (strcmp (temp_string, "6") == 0) 00264 { 00265 /* Now follows a string containing a linetype 00266 * name. */ 00267 (fp->line_number)++; 00268 fscanf (fp->fp, "%s\n", viewport->linetype); 00269 } 00270 else if (strcmp (temp_string, "8") == 0) 00271 { 00272 /* Now follows a string containing a layer name. */ 00273 (fp->line_number)++; 00274 fscanf (fp->fp, "%s\n", viewport->layer); 00275 } 00276 else if (strcmp (temp_string, "10") == 0) 00277 { 00278 /* Now follows a string containing the 00279 * X-coordinate of the center point. */ 00280 (fp->line_number)++; 00281 fscanf (fp->fp, "%lf\n", &viewport->x0); 00282 } 00283 else if (strcmp (temp_string, "20") == 0) 00284 { 00285 /* Now follows a string containing the 00286 * Y-coordinate of the center point. */ 00287 (fp->line_number)++; 00288 fscanf (fp->fp, "%lf\n", &viewport->y0); 00289 } 00290 else if (strcmp (temp_string, "30") == 0) 00291 { 00292 /* Now follows a string containing the 00293 * Z-coordinate of the center point. */ 00294 (fp->line_number)++; 00295 fscanf (fp->fp, "%lf\n", &viewport->z0); 00296 } 00297 else if ((fp->acad_version_number <= AutoCAD_11) 00298 && (strcmp (temp_string, "38") == 0) 00299 && (viewport->z0 = 0.0)) 00300 { 00301 /* Elevation is a pre AutoCAD R11 variable 00302 * so additional testing for the version should 00303 * probably be added. 00304 * Now follows a string containing the 00305 * elevation. */ 00306 (fp->line_number)++; 00307 fscanf (fp->fp, "%lf\n", &viewport->z0); 00308 } 00309 else if (strcmp (temp_string, "39") == 0) 00310 { 00311 /* Now follows a string containing the 00312 * thickness. */ 00313 (fp->line_number)++; 00314 fscanf (fp->fp, "%lf\n", &viewport->thickness); 00315 } 00316 else if (strcmp (temp_string, "40") == 0) 00317 { 00318 /* Now follows a string containing the 00319 * width. */ 00320 (fp->line_number)++; 00321 fscanf (fp->fp, "%lf\n", &viewport->width); 00322 } 00323 else if (strcmp (temp_string, "41") == 0) 00324 { 00325 /* Now follows a string containing the 00326 * height. */ 00327 (fp->line_number)++; 00328 fscanf (fp->fp, "%lf\n", &viewport->height); 00329 } 00330 else if (strcmp (temp_string, "48") == 0) 00331 { 00332 /* Now follows a string containing the linetype 00333 * scale. */ 00334 (fp->line_number)++; 00335 fscanf (fp->fp, "%lf\n", &viewport->linetype_scale); 00336 } 00337 else if (strcmp (temp_string, "60") == 0) 00338 { 00339 /* Now follows a string containing the 00340 * visibility value. */ 00341 (fp->line_number)++; 00342 fscanf (fp->fp, "%hd\n", &viewport->visibility); 00343 } 00344 else if (strcmp (temp_string, "62") == 0) 00345 { 00346 /* Now follows a string containing the 00347 * color value. */ 00348 (fp->line_number)++; 00349 fscanf (fp->fp, "%d\n", &viewport->color); 00350 } 00351 else if (strcmp (temp_string, "67") == 0) 00352 { 00353 /* Now follows a string containing the 00354 * paperspace value. */ 00355 (fp->line_number)++; 00356 fscanf (fp->fp, "%d\n", &viewport->paperspace); 00357 } 00358 else if (strcmp (temp_string, "68") == 0) 00359 { 00360 /* Now follows a string containing the 00361 * status value. */ 00362 (fp->line_number)++; 00363 fscanf (fp->fp, "%d\n", &viewport->status); 00364 } 00365 else if (strcmp (temp_string, "69") == 0) 00366 { 00367 /* Now follows a string containing the 00368 * id. */ 00369 (fp->line_number)++; 00370 fscanf (fp->fp, "%d\n", &viewport->id); 00371 } 00372 else if (strcmp (temp_string, "999") == 0) 00373 { 00374 /* Now follows a string containing a comment. */ 00375 (fp->line_number)++; 00376 fscanf (fp->fp, "%s\n", temp_string); 00377 fprintf (stdout, "DXF comment: %s\n", temp_string); 00378 } 00379 else if (strcmp (temp_string, "1001") == 0) 00380 { 00381 /* Now follows a sequence of ordered data fields. */ 00382 /* Now follows a string containing the appname, 00383 * always "ACAD". */ 00384 (fp->line_number)++; 00385 fscanf (fp->fp, "%s\n", viewport->app_name); 00386 if (strcmp (viewport->app_name, "ACAD") == 1) 00387 { 00388 fprintf (stderr, 00389 (_("Error in %s () while reading from: %s in line: %d.\n")), 00390 __FUNCTION__, fp->filename, fp->line_number); 00391 fprintf (stderr, 00392 (_("\tunexpected content in string followed after group code 1001.\n"))); 00393 return (NULL); 00394 } 00395 /* Now follows a string containing a group code. */ 00396 (fp->line_number)++; 00397 fscanf (fp->fp, "%s\n", temp_string); 00398 if (strcmp (temp_string, "1000") == 1) 00399 { 00400 fprintf (stderr, 00401 (_("Error in %s () while reading from: %s in line: %d.\n")), 00402 __FUNCTION__, fp->filename, fp->line_number); 00403 fprintf (stderr, 00404 (_("\tunexpected content in string sequence found.\n"))); 00405 return (NULL); 00406 } 00407 /* Now follows a string containing the viewport 00408 * data, always "MVIEW". */ 00409 (fp->line_number)++; 00410 fscanf (fp->fp, "%s\n", viewport->viewport_data); 00411 if (strcmp (viewport->viewport_data, "MVIEW") == 1) 00412 { 00413 fprintf (stderr, 00414 (_("Error in %s () while reading from: %s in line: %d.\n")), 00415 __FUNCTION__, fp->filename, fp->line_number); 00416 fprintf (stderr, 00417 (_("\tunexpected content in string.\n"))); 00418 return (NULL); 00419 } 00420 /* Now follows a string containing a group code. */ 00421 (fp->line_number)++; 00422 fscanf (fp->fp, "%s\n", temp_string); 00423 if (strcmp (temp_string, "1002") == 1) 00424 { 00425 fprintf (stderr, 00426 (_("Error in %s () while reading from: %s in line: %d.\n")), 00427 __FUNCTION__, fp->filename, fp->line_number); 00428 fprintf (stderr, 00429 (_("\tunexpected content in string sequence found.\n"))); 00430 return (NULL); 00431 } 00432 /* Now follows a string containing the window 00433 * begin descriptor, always "{". */ 00434 (fp->line_number)++; 00435 fscanf (fp->fp, "%s\n", viewport->window_descriptor_begin); 00436 if (strcmp (viewport->window_descriptor_begin, "{") == 1) 00437 { 00438 fprintf (stderr, 00439 (_("Error in %s () while reading from: %s in line: %d.\n")), 00440 __FUNCTION__, fp->filename, fp->line_number); 00441 fprintf (stderr, " unexpected content in string.\n"); 00442 return (NULL); 00443 } 00444 /* Now follows a string containing a group code. */ 00445 (fp->line_number)++; 00446 fscanf (fp->fp, "%s\n", temp_string); 00447 if (strcmp (temp_string, "1070") == 1) 00448 { 00449 fprintf (stderr, 00450 (_("Error in %s () while reading from: %s in line: %d.\n")), 00451 __FUNCTION__, fp->filename, fp->line_number); 00452 fprintf (stderr, 00453 (_("\tunexpected content in string sequence found.\n"))); 00454 return (NULL); 00455 } 00456 /* Now follows a string containing the extended 00457 * entity data version number. */ 00458 (fp->line_number)++; 00459 fscanf (fp->fp, "%d\n", &viewport->extended_entity_data_version); 00460 /* Now follows a string containing a group code. */ 00461 (fp->line_number)++; 00462 fscanf (fp->fp, "%s\n", temp_string); 00463 if (strcmp (temp_string, "1010") == 1) 00464 { 00465 fprintf (stderr, 00466 (_("Error in %s () while reading from: %s in line: %d.\n")), 00467 __FUNCTION__, fp->filename, fp->line_number); 00468 fprintf (stderr, 00469 (_("\tunexpected content in string sequence found.\n"))); 00470 return (NULL); 00471 } 00472 /* Now follows a string containing the X-target. */ 00473 (fp->line_number)++; 00474 fscanf (fp->fp, "%lf\n", &viewport->x_target); 00475 /* Now follows a string containing a group code. */ 00476 (fp->line_number)++; 00477 fscanf (fp->fp, "%s\n", temp_string); 00478 if (strcmp (temp_string, "1020") == 1) 00479 { 00480 fprintf (stderr, 00481 (_("Error in %s () while reading from: %s in line: %d.\n")), 00482 __FUNCTION__, fp->filename, fp->line_number); 00483 fprintf (stderr, 00484 (_("\tunexpected content in string sequence found.\n"))); 00485 return (NULL); 00486 } 00487 /* Now follows a string containing the Y-target. */ 00488 (fp->line_number)++; 00489 fscanf (fp->fp, "%lf\n", &viewport->y_target); 00490 /* Now follows a string containing a group code. */ 00491 (fp->line_number)++; 00492 fscanf (fp->fp, "%s\n", temp_string); 00493 if (strcmp (temp_string, "1030") == 1) 00494 { 00495 fprintf (stderr, 00496 (_("Error in %s () while reading from: %s in line: %d.\n")), 00497 __FUNCTION__, fp->filename, fp->line_number); 00498 fprintf (stderr, 00499 (_("\tunexpected content in string sequence found.\n"))); 00500 return (NULL); 00501 } 00502 /* Now follows a string containing the Z-target. */ 00503 (fp->line_number)++; 00504 fscanf (fp->fp, "%lf\n", &viewport->z_target); 00505 /* Now follows a string containing a group code. */ 00506 (fp->line_number)++; 00507 fscanf (fp->fp, "%s\n", temp_string); 00508 if (strcmp (temp_string, "1010") == 1) 00509 { 00510 fprintf (stderr, 00511 (_("Error in %s () while reading from: %s in line: %d.\n")), 00512 __FUNCTION__, fp->filename, fp->line_number); 00513 fprintf (stderr, 00514 (_("\tunexpected content in string sequence found.\n"))); 00515 return (NULL); 00516 } 00517 /* Now follows a string containing the X-direction. */ 00518 (fp->line_number)++; 00519 fscanf (fp->fp, "%lf\n", &viewport->x_direction); 00520 /* Now follows a string containing a group code. */ 00521 (fp->line_number)++; 00522 fscanf (fp->fp, "%s\n", temp_string); 00523 if (strcmp (temp_string, "1020") == 1) 00524 { 00525 fprintf (stderr, 00526 (_("Error in %s () while reading from: %s in line: %d.\n")), 00527 __FUNCTION__, fp->filename, fp->line_number); 00528 fprintf (stderr, 00529 (_("\tunexpected content in string sequence found.\n"))); 00530 return (NULL); 00531 } 00532 /* Now follows a string containing the Y-direction. */ 00533 (fp->line_number)++; 00534 fscanf (fp->fp, "%lf\n", &viewport->y_direction); 00535 /* Now follows a string containing a group code. */ 00536 (fp->line_number)++; 00537 fscanf (fp->fp, "%s\n", temp_string); 00538 if (strcmp (temp_string, "1030") == 1) 00539 { 00540 fprintf (stderr, 00541 (_("Error in %s () while reading from: %s in line: %d.\n")), 00542 __FUNCTION__, fp->filename, fp->line_number); 00543 fprintf (stderr, 00544 (_("\tunexpected content in string sequence found.\n"))); 00545 return (NULL); 00546 } 00547 /* Now follows a string containing the Z-direction. */ 00548 (fp->line_number)++; 00549 fscanf (fp->fp, "%lf\n", &viewport->z_direction); 00550 /* Now follows a string containing a group code. */ 00551 (fp->line_number)++; 00552 fscanf (fp->fp, "%s\n", temp_string); 00553 if (strcmp (temp_string, "1040") == 1) 00554 { 00555 fprintf (stderr, 00556 (_("Error in %s () while reading from: %s in line: %d.\n")), 00557 __FUNCTION__, fp->filename, fp->line_number); 00558 fprintf (stderr, 00559 (_("\tunexpected content in string sequence found.\n"))); 00560 return (NULL); 00561 } 00562 /* Now follows a string containing the view 00563 * twist angle. */ 00564 (fp->line_number)++; 00565 fscanf (fp->fp, "%lf\n", &viewport->view_twist_angle); 00566 /* Now follows a string containing a group code. */ 00567 (fp->line_number)++; 00568 fscanf (fp->fp, "%s\n", temp_string); 00569 if (strcmp (temp_string, "1040") == 1) 00570 { 00571 fprintf (stderr, 00572 (_("Error in %s () while reading from: %s in line: %d.\n")), 00573 __FUNCTION__, fp->filename, fp->line_number); 00574 fprintf (stderr, 00575 (_("\tunexpected content in string sequence found.\n"))); 00576 return (NULL); 00577 } 00578 /* Now follows a string containing the view 00579 * height. */ 00580 (fp->line_number)++; 00581 fscanf (fp->fp, "%lf\n", &viewport->view_height); 00582 /* Now follows a string containing a group code. */ 00583 (fp->line_number)++; 00584 fscanf (fp->fp, "%s\n", temp_string); 00585 if (strcmp (temp_string, "1040") == 1) 00586 { 00587 fprintf (stderr, 00588 (_("Error in %s () while reading from: %s in line: %d.\n")), 00589 __FUNCTION__, fp->filename, fp->line_number); 00590 fprintf (stderr, 00591 (_("\tunexpected content in string sequence found.\n"))); 00592 return (NULL); 00593 } 00594 /* Now follows a string containing the 00595 * X-coordinate of the view center point. */ 00596 (fp->line_number)++; 00597 fscanf (fp->fp, "%lf\n", &viewport->x_center); 00598 /* Now follows a string containing a group code. */ 00599 (fp->line_number)++; 00600 fscanf (fp->fp, "%s\n", temp_string); 00601 if (strcmp (temp_string, "1040") == 1) 00602 { 00603 fprintf (stderr, 00604 (_("Error in %s () while reading from: %s in line: %d.\n")), 00605 __FUNCTION__, fp->filename, fp->line_number); 00606 fprintf (stderr, 00607 (_("\tunexpected content in string sequence found.\n"))); 00608 return (NULL); 00609 } 00610 /* Now follows a string containing the 00611 * Y-coordinate of the view center point. */ 00612 (fp->line_number)++; 00613 fscanf (fp->fp, "%lf\n", &viewport->y_center); 00614 /* Now follows a string containing a group code. */ 00615 (fp->line_number)++; 00616 fscanf (fp->fp, "%s\n", temp_string); 00617 if (strcmp (temp_string, "1040") == 1) 00618 { 00619 fprintf (stderr, 00620 (_("Error in %s () while reading from: %s in line: %d.\n")), 00621 __FUNCTION__, fp->filename, fp->line_number); 00622 fprintf (stderr, 00623 (_("\tunexpected content in string sequence found.\n"))); 00624 return (NULL); 00625 } 00626 /* Now follows a string containing the 00627 * perspective lens length. */ 00628 (fp->line_number)++; 00629 fscanf (fp->fp, "%lf\n", &viewport->perspective_lens_length); 00630 /* Now follows a string containing a group code. */ 00631 (fp->line_number)++; 00632 fscanf (fp->fp, "%s\n", temp_string); 00633 if (strcmp (temp_string, "1040") == 1) 00634 { 00635 fprintf (stderr, 00636 (_("Error in %s () while reading from: %s in line: %d.\n")), 00637 __FUNCTION__, fp->filename, fp->line_number); 00638 fprintf (stderr, 00639 (_("\tunexpected content in string sequence found.\n"))); 00640 return (NULL); 00641 } 00642 /* Now follows a string containing the front 00643 * clipping plane offset. */ 00644 (fp->line_number)++; 00645 fscanf (fp->fp, "%lf\n", &viewport->front_plane_offset); 00646 /* Now follows a string containing a group code. */ 00647 (fp->line_number)++; 00648 fscanf (fp->fp, "%s\n", temp_string); 00649 if (strcmp (temp_string, "1040") == 1) 00650 { 00651 fprintf (stderr, 00652 (_("Error in %s () while reading from: %s in line: %d.\n")), 00653 __FUNCTION__, fp->filename, fp->line_number); 00654 fprintf (stderr, 00655 (_("\tunexpected content in string sequence found.\n"))); 00656 return (NULL); 00657 } 00658 /* Now follows a string containing the back 00659 * clipping plane offset. */ 00660 (fp->line_number)++; 00661 fscanf (fp->fp, "%lf\n", &viewport->back_plane_offset); 00662 /* Now follows a string containing a group code. */ 00663 (fp->line_number)++; 00664 fscanf (fp->fp, "%s\n", temp_string); 00665 if (strcmp (temp_string, "1070") == 1) 00666 { 00667 fprintf (stderr, 00668 (_("Error in %s () while reading from: %s in line: %d.\n")), 00669 __FUNCTION__, fp->filename, fp->line_number); 00670 fprintf (stderr, 00671 (_("\tunexpected content in string sequence found.\n"))); 00672 return (NULL); 00673 } 00674 /* Now follows a string containing the view mode. */ 00675 (fp->line_number)++; 00676 fscanf (fp->fp, "%d\n", &viewport->view_mode); 00677 /* Now follows a string containing a group code. */ 00678 (fp->line_number)++; 00679 fscanf (fp->fp, "%s\n", temp_string); 00680 if (strcmp (temp_string, "1070") == 1) 00681 { 00682 fprintf (stderr, 00683 (_("Error in %s () while reading from: %s in line: %d.\n")), 00684 __FUNCTION__, fp->filename, fp->line_number); 00685 fprintf (stderr, 00686 (_("\tunexpected content in string sequence found.\n"))); 00687 return (NULL); 00688 } 00689 /* Now follows a string containing the circle 00690 * zoom percent. */ 00691 (fp->line_number)++; 00692 fscanf (fp->fp, "%d\n", &viewport->circle_zoom_percent); 00693 /* Now follows a string containing a group code. */ 00694 (fp->line_number)++; 00695 fscanf (fp->fp, "%s\n", temp_string); 00696 if (strcmp (temp_string, "1070") == 1) 00697 { 00698 fprintf (stderr, 00699 (_("Error in %s () while reading from: %s in line: %d.\n")), 00700 __FUNCTION__, fp->filename, fp->line_number); 00701 fprintf (stderr, 00702 (_("\tunexpected content in string sequence found.\n"))); 00703 return (NULL); 00704 } 00705 /* Now follows a string containing the fast zoom 00706 * setting. */ 00707 (fp->line_number)++; 00708 fscanf (fp->fp, "%d\n", &viewport->fast_zoom_setting); 00709 /* Now follows a string containing a group code. */ 00710 (fp->line_number)++; 00711 fscanf (fp->fp, "%s\n", temp_string); 00712 if (strcmp (temp_string, "1070") == 1) 00713 { 00714 fprintf (stderr, 00715 (_("Error in %s () while reading from: %s in line: %d.\n")), 00716 __FUNCTION__, fp->filename, fp->line_number); 00717 fprintf (stderr, 00718 (_("\tunexpected content in string sequence found.\n"))); 00719 return (NULL); 00720 } 00721 /* Now follows a string containing the ICS ICON 00722 * setting. */ 00723 (fp->line_number)++; 00724 fscanf (fp->fp, "%d\n", &viewport->UCSICON_setting); 00725 /* Now follows a string containing a group code. */ 00726 (fp->line_number)++; 00727 fscanf (fp->fp, "%s\n", temp_string); 00728 if (strcmp (temp_string, "1070") == 1) 00729 { 00730 fprintf (stderr, 00731 (_("Error in %s () while reading from: %s in line: %d.\n")), 00732 __FUNCTION__, fp->filename, fp->line_number); 00733 fprintf (stderr, 00734 (_("\tunexpected content in string sequence found.\n"))); 00735 return (NULL); 00736 } 00737 /* Now follows a string containing the snap on 00738 * setting. */ 00739 (fp->line_number)++; 00740 fscanf (fp->fp, "%d\n", &viewport->snap_on); 00741 /* Now follows a string containing a group code. */ 00742 (fp->line_number)++; 00743 fscanf (fp->fp, "%s\n", temp_string); 00744 if (strcmp (temp_string, "1070") == 1) 00745 { 00746 fprintf (stderr, 00747 (_("Error in %s () while reading from: %s in line: %d.\n")), 00748 __FUNCTION__, fp->filename, fp->line_number); 00749 fprintf (stderr, 00750 (_("\tunexpected content in string sequence found.\n"))); 00751 return (NULL); 00752 } 00753 /* Now follows a string containing the grid on 00754 * setting. */ 00755 (fp->line_number)++; 00756 fscanf (fp->fp, "%d\n", &viewport->grid_on); 00757 /* Now follows a string containing a group code. */ 00758 (fp->line_number)++; 00759 fscanf (fp->fp, "%s\n", temp_string); 00760 if (strcmp (temp_string, "1070") == 1) 00761 { 00762 fprintf (stderr, 00763 (_("Error in %s () while reading from: %s in line: %d.\n")), 00764 __FUNCTION__, fp->filename, fp->line_number); 00765 fprintf (stderr, 00766 (_("\tunexpected content in string sequence found.\n"))); 00767 return (NULL); 00768 } 00769 /* Now follows a string containing the snap 00770 * style setting. */ 00771 (fp->line_number)++; 00772 fscanf (fp->fp, "%d\n", &viewport->snap_style); 00773 /* Now follows a string containing a group code. */ 00774 (fp->line_number)++; 00775 fscanf (fp->fp, "%s\n", temp_string); 00776 if (strcmp (temp_string, "1070") == 1) 00777 { 00778 fprintf (stderr, 00779 (_("Error in %s () while reading from: %s in line: %d.\n")), 00780 __FUNCTION__, fp->filename, fp->line_number); 00781 fprintf (stderr, 00782 (_("\tunexpected content in string sequence found.\n"))); 00783 return (NULL); 00784 } 00785 /* Now follows a string containing the snap 00786 * isopair setting. */ 00787 (fp->line_number)++; 00788 fscanf (fp->fp, "%d\n", &viewport->snap_isopair); 00789 /* Now follows a string containing a group code. */ 00790 (fp->line_number)++; 00791 fscanf (fp->fp, "%s\n", temp_string); 00792 if (strcmp (temp_string, "1040") == 1) 00793 { 00794 fprintf (stderr, 00795 (_("Error in %s () while reading from: %s in line: %d.\n")), 00796 __FUNCTION__, fp->filename, fp->line_number); 00797 fprintf (stderr, 00798 (_("\tunexpected content in string sequence found.\n"))); 00799 return (NULL); 00800 } 00801 /* Now follows a string containing the snap 00802 * rotation angle. */ 00803 (fp->line_number)++; 00804 fscanf (fp->fp, "%lf\n", &viewport->snap_rotation_angle); 00805 /* Now follows a string containing a group code. */ 00806 (fp->line_number)++; 00807 fscanf (fp->fp, "%s\n", temp_string); 00808 if (strcmp (temp_string, "1040") == 1) 00809 { 00810 fprintf (stderr, 00811 (_("Error in %s () while reading from: %s in line: %d.\n")), 00812 __FUNCTION__, fp->filename, fp->line_number); 00813 fprintf (stderr, 00814 (_("\tunexpected content in string sequence found.\n"))); 00815 return (NULL); 00816 } 00817 /* Now follows a string containing the X snap 00818 * base. */ 00819 (fp->line_number)++; 00820 fscanf (fp->fp, "%lf\n", &viewport->x_snap_base); 00821 /* Now follows a string containing a group code. */ 00822 (fp->line_number)++; 00823 fscanf (fp->fp, "%s\n", temp_string); 00824 if (strcmp (temp_string, "1040") == 1) 00825 { 00826 fprintf (stderr, 00827 (_("Error in %s () while reading from: %s in line: %d.\n")), 00828 __FUNCTION__, fp->filename, fp->line_number); 00829 fprintf (stderr, 00830 (_("\tunexpected content in string sequence found.\n"))); 00831 return (NULL); 00832 } 00833 /* Now follows a string containing the Y snap 00834 * base. */ 00835 (fp->line_number)++; 00836 fscanf (fp->fp, "%lf\n", &viewport->y_snap_base); 00837 /* Now follows a string containing a group code. */ 00838 (fp->line_number)++; 00839 fscanf (fp->fp, "%s\n", temp_string); 00840 if (strcmp (temp_string, "1040") == 1) 00841 { 00842 fprintf (stderr, 00843 (_("Error in %s () while reading from: %s in line: %d.\n")), 00844 __FUNCTION__, fp->filename, fp->line_number); 00845 fprintf (stderr, 00846 (_("\tunexpected content in string sequence found.\n"))); 00847 return (NULL); 00848 } 00849 /* Now follows a string containing the X snap 00850 * spacing. */ 00851 (fp->line_number)++; 00852 fscanf (fp->fp, "%lf\n", &viewport->x_snap_spacing); 00853 /* Now follows a string containing a group code. */ 00854 (fp->line_number)++; 00855 fscanf (fp->fp, "%s\n", temp_string); 00856 if (strcmp (temp_string, "1040") == 1) 00857 { 00858 fprintf (stderr, 00859 (_("Error in %s () while reading from: %s in line: %d.\n")), 00860 __FUNCTION__, fp->filename, fp->line_number); 00861 fprintf (stderr, 00862 (_("\tunexpected content in string sequence found.\n"))); 00863 return (NULL); 00864 } 00865 /* Now follows a string containing the Y snap 00866 * spacing. */ 00867 (fp->line_number)++; 00868 fscanf (fp->fp, "%lf\n", &viewport->y_snap_spacing); 00869 /* Now follows a string containing a group code. */ 00870 (fp->line_number)++; 00871 fscanf (fp->fp, "%s\n", temp_string); 00872 if (strcmp (temp_string, "1070") == 1) 00873 { 00874 fprintf (stderr, 00875 (_("Error in %s () while reading from: %s in line: %d.\n")), 00876 __FUNCTION__, fp->filename, fp->line_number); 00877 fprintf (stderr, 00878 (_("\tunexpected content in string sequence found.\n"))); 00879 return (NULL); 00880 } 00881 /* Now follows a string containing the plot flag. */ 00882 (fp->line_number)++; 00883 fscanf (fp->fp, "%d\n", &viewport->plot_flag); 00884 /* Now follows a string containing a group code. */ 00885 (fp->line_number)++; 00886 fscanf (fp->fp, "%s\n", temp_string); 00887 if (strcmp (temp_string, "1002") == 1) 00888 { 00889 fprintf (stderr, 00890 (_("Error in %s () while reading from: %s in line: %d.\n")), 00891 __FUNCTION__, fp->filename, fp->line_number); 00892 fprintf (stderr, 00893 (_("\tunexpected content in string sequence found.\n"))); 00894 return (NULL); 00895 } 00896 /* Now follows a string containing the frozen 00897 * layer list begin descriptor, always "{". */ 00898 (fp->line_number)++; 00899 fscanf (fp->fp, "%s\n", viewport->frozen_layer_list_begin); 00900 if (strcmp (viewport->frozen_layer_list_begin, "{") == 1) 00901 { 00902 fprintf (stderr, 00903 (_("Error in %s () while reading from: %s in line: %d.\n")), 00904 __FUNCTION__, fp->filename, fp->line_number); 00905 fprintf (stderr, 00906 (_("\tunexpected content in string.\n"))); 00907 return (NULL); 00908 } 00909 /* Now follows a string containing a group code 00910 * value of "1003". */ 00911 (fp->line_number)++; 00912 fscanf (fp->fp, "%s\n", temp_string); 00913 if (strcmp (temp_string, "1003") == 0) 00914 { 00915 /* Start a loop reading all frozen layer 00916 * names and bail out when a group code 00917 * with a value of "1002" is encountered 00918 * or DXF_MAX_LAYERS is reached.*/ 00919 int j = 0; 00920 do 00921 { 00922 (fp->line_number)++; 00923 fscanf (fp->fp, "%s\n", viewport->frozen_layers[j]); 00924 j++; 00925 /* Now follows a string containing a group code. */ 00926 (fp->line_number)++; 00927 fscanf (fp->fp, "%s\n", temp_string); 00928 } 00929 while ((strcmp (temp_string, "1003") == 0) 00930 || (j < DXF_MAX_LAYERS)); 00931 } 00932 else 00933 { 00934 /* Either we found an empty list or we 00935 * have found an exception. */ 00936 fprintf (stderr, 00937 (_("Error in %s () while reading from: %s in line: %d.\n")), 00938 __FUNCTION__, fp->filename, fp->line_number); 00939 fprintf (stderr, 00940 (_("\tunexpected end of frozen layer list found.\n"))); 00941 return (NULL); 00942 } 00943 /* Now we are expecting temp_string to contain a 00944 * group code value of "1002". */ 00945 if (strcmp (temp_string, "1002") == 1) 00946 { 00947 fprintf (stderr, 00948 (_("Error in %s () while reading from: %s in line: %d.\n")), 00949 __FUNCTION__, fp->filename, fp->line_number); 00950 fprintf (stderr, 00951 (_("\tunexpected content in string sequence found.\n"))); 00952 return (NULL); 00953 } 00954 /* Now follows a string containing the frozen 00955 * layer list end descriptor, always "}". */ 00956 (fp->line_number)++; 00957 fscanf (fp->fp, "%s\n", viewport->frozen_layer_list_end); 00958 if (strcmp (viewport->frozen_layer_list_end, "}") == 1) 00959 { 00960 fprintf (stderr, 00961 (_("Error in %s () while reading from: %s in line: %d.\n")), 00962 __FUNCTION__, fp->filename, fp->line_number); 00963 fprintf (stderr, 00964 (_("\tunexpected content in string.\n"))); 00965 return (NULL); 00966 } 00967 /* Now follows a string containing a group code. */ 00968 (fp->line_number)++; 00969 fscanf (fp->fp, "%s\n", temp_string); 00970 if (strcmp (temp_string, "1002") == 1) 00971 { 00972 fprintf (stderr, 00973 (_("Error in %s () while reading from: %s in line: %d.\n")), 00974 __FUNCTION__, fp->filename, fp->line_number); 00975 fprintf (stderr, 00976 (_("\tunexpected content in string sequence found.\n"))); 00977 return (NULL); 00978 } 00979 /* Now follows a string containing the window 00980 * end descriptor, always "}". */ 00981 (fp->line_number)++; 00982 fscanf (fp->fp, "%s\n", viewport->window_descriptor_end); 00983 if (strcmp (viewport->window_descriptor_end, "}") == 1) 00984 { 00985 fprintf (stderr, 00986 (_("Error in %s () while reading from: %s in line: %d.\n")), 00987 __FUNCTION__, fp->filename, fp->line_number); 00988 fprintf (stderr, 00989 (_("\tunexpected content in string.\n"))); 00990 return (NULL); 00991 } 00992 } 00993 /* End of sequential ordered data fields. */ 00994 else 00995 { 00996 fprintf (stderr, 00997 (_("Warning in %s () unknown string tag found while reading from: %s in line: %d.\n")), 00998 __FUNCTION__, fp->filename, fp->line_number); 00999 } 01000 } 01001 /* Handle omitted members and/or illegal values. */ 01002 if (strcmp (viewport->linetype, "") == 0) 01003 { 01004 viewport->linetype = strdup (DXF_DEFAULT_LINETYPE); 01005 } 01006 if (strcmp (viewport->layer, "") == 0) 01007 { 01008 viewport->layer = strdup (DXF_DEFAULT_LAYER); 01009 } 01010 /* Clean up. */ 01011 free (temp_string); 01012 #if DEBUG 01013 DXF_DEBUG_END 01014 #endif 01015 return (viewport); 01016 } 01017 01018 01031 int 01032 dxf_viewport_write 01033 ( 01034 DxfFile *fp, 01036 DxfViewport *viewport 01038 ) 01039 { 01040 #if DEBUG 01041 DXF_DEBUG_BEGIN 01042 #endif 01043 char *dxf_entity_name = strdup ("VIEWPORT"); 01044 01045 /* Do some basic checks. */ 01046 if (fp == NULL) 01047 { 01048 fprintf (stderr, 01049 (_("Error in %s () a NULL file pointer was passed.\n")), 01050 __FUNCTION__); 01051 /* Clean up. */ 01052 free (dxf_entity_name); 01053 return (EXIT_FAILURE); 01054 } 01055 if (viewport == NULL) 01056 { 01057 fprintf (stderr, 01058 (_("Error in %s () a NULL pointer was passed.\n")), 01059 __FUNCTION__); 01060 /* Clean up. */ 01061 free (dxf_entity_name); 01062 return (EXIT_FAILURE); 01063 } 01064 if (strcmp (viewport->linetype, "") == 0) 01065 { 01066 fprintf (stderr, 01067 (_("Warning in %s () empty linetype string for the %s entity with id-code: %x\n")), 01068 __FUNCTION__, dxf_entity_name, viewport->id_code); 01069 fprintf (stderr, 01070 (_("\t%s entity is reset to default linetype")), 01071 dxf_entity_name); 01072 viewport->linetype = strdup (DXF_DEFAULT_LINETYPE); 01073 } 01074 if (strcmp (viewport->layer, "") == 0) 01075 { 01076 fprintf (stderr, 01077 (_("Warning in %s () empty layer string for the %s entity with id-code: %x.\n")), 01078 __FUNCTION__, dxf_entity_name, viewport->id_code); 01079 fprintf (stderr, 01080 (_("\t%s entity is relocated to default layer.\n")), 01081 dxf_entity_name); 01082 viewport->layer = strdup (DXF_DEFAULT_LAYER); 01083 } 01084 /* Start writing output. */ 01085 fprintf (fp->fp, " 0\n%s\n", dxf_entity_name); 01086 if (viewport->id_code != -1) 01087 { 01088 fprintf (fp->fp, " 5\n%x\n", viewport->id_code); 01089 } 01100 if ((strcmp (viewport->dictionary_owner_soft, "") != 0) 01101 && (fp->acad_version_number >= AutoCAD_14)) 01102 { 01103 fprintf (fp->fp, "102\n{ACAD_REACTORS\n"); 01104 fprintf (fp->fp, "330\n%s\n", viewport->dictionary_owner_soft); 01105 fprintf (fp->fp, "102\n}\n"); 01106 } 01107 if ((strcmp (viewport->dictionary_owner_hard, "") != 0) 01108 && (fp->acad_version_number >= AutoCAD_14)) 01109 { 01110 fprintf (fp->fp, "102\n{ACAD_XDICTIONARY\n"); 01111 fprintf (fp->fp, "360\n%s\n", viewport->dictionary_owner_hard); 01112 fprintf (fp->fp, "102\n}\n"); 01113 } 01114 if (fp->acad_version_number >= AutoCAD_13) 01115 { 01116 fprintf (fp->fp, "100\nAcDbEntity\n"); 01117 } 01118 if (viewport->paperspace == DXF_PAPERSPACE) 01119 { 01120 fprintf (fp->fp, " 67\n%d\n", DXF_PAPERSPACE); 01121 } 01122 fprintf (fp->fp, " 8\n%s\n", viewport->layer); 01123 if (strcmp (viewport->linetype, DXF_DEFAULT_LINETYPE) != 0) 01124 { 01125 fprintf (fp->fp, " 6\n%s\n", viewport->linetype); 01126 } 01127 if ((fp->acad_version_number <= AutoCAD_11) 01128 && DXF_FLATLAND 01129 && (viewport->elevation != 0.0)) 01130 { 01131 fprintf (fp->fp, " 38\n%f\n", viewport->elevation); 01132 } 01133 if (viewport->color != DXF_COLOR_BYLAYER) 01134 { 01135 fprintf (fp->fp, " 62\n%d\n", viewport->color); 01136 } 01137 if (viewport->linetype_scale != 1.0) 01138 { 01139 fprintf (fp->fp, " 48\n%f\n", viewport->linetype_scale); 01140 } 01141 if (viewport->visibility != 0) 01142 { 01143 fprintf (fp->fp, " 60\n%d\n", viewport->visibility); 01144 } 01145 if (fp->acad_version_number >= AutoCAD_13) 01146 { 01147 fprintf (fp->fp, "100\nAcDbViewport\n"); 01148 } 01149 if (viewport->thickness != 0.0) 01150 { 01151 fprintf (fp->fp, " 39\n%f\n", viewport->thickness); 01152 } 01153 fprintf (fp->fp, " 10\n%f\n", viewport->x0); 01154 fprintf (fp->fp, " 20\n%f\n", viewport->y0); 01155 fprintf (fp->fp, " 30\n%f\n", viewport->z0); 01156 fprintf (fp->fp, " 40\n%f\n", viewport->width); 01157 fprintf (fp->fp, " 41\n%f\n", viewport->height); 01158 fprintf (fp->fp, " 68\n%d\n", viewport->status); 01159 fprintf (fp->fp, " 69\n%d\n", viewport->id); 01160 fprintf (fp->fp, "1001\n%s\n", DXF_VIEWPORT_APP_NAME); 01161 fprintf (fp->fp, "1000\n%s\n", DXF_VIEWPORT_DATA); 01162 fprintf (fp->fp, "1002\n%s\n", DXF_VIEWPORT_WINDOW_BEGIN); 01163 fprintf (fp->fp, "1070\n%d\n", viewport->extended_entity_data_version); 01164 fprintf (fp->fp, "1010\n%f\n", viewport->x_target); 01165 fprintf (fp->fp, "1020\n%f\n", viewport->y_target); 01166 fprintf (fp->fp, "1030\n%f\n", viewport->z_target); 01167 fprintf (fp->fp, "1010\n%f\n", viewport->x_direction); 01168 fprintf (fp->fp, "1020\n%f\n", viewport->y_direction); 01169 fprintf (fp->fp, "1030\n%f\n", viewport->z_direction); 01170 fprintf (fp->fp, "1040\n%f\n", viewport->view_twist_angle); 01171 fprintf (fp->fp, "1040\n%f\n", viewport->view_height); 01172 fprintf (fp->fp, "1040\n%f\n", viewport->x_center); 01173 fprintf (fp->fp, "1040\n%f\n", viewport->y_center); 01174 fprintf (fp->fp, "1040\n%f\n", viewport->perspective_lens_length); 01175 fprintf (fp->fp, "1040\n%f\n", viewport->front_plane_offset); 01176 fprintf (fp->fp, "1040\n%f\n", viewport->back_plane_offset); 01177 fprintf (fp->fp, "1070\n%d\n", viewport->view_mode); 01178 fprintf (fp->fp, "1070\n%d\n", viewport->circle_zoom_percent); 01179 fprintf (fp->fp, "1070\n%d\n", viewport->fast_zoom_setting); 01180 fprintf (fp->fp, "1070\n%d\n", viewport->UCSICON_setting); 01181 fprintf (fp->fp, "1070\n%d\n", viewport->snap_on); 01182 fprintf (fp->fp, "1070\n%d\n", viewport->grid_on); 01183 fprintf (fp->fp, "1070\n%d\n", viewport->snap_style); 01184 fprintf (fp->fp, "1070\n%d\n", viewport->snap_isopair); 01185 fprintf (fp->fp, "1040\n%f\n", viewport->snap_rotation_angle); 01186 fprintf (fp->fp, "1040\n%f\n", viewport->x_snap_base); 01187 fprintf (fp->fp, "1040\n%f\n", viewport->y_snap_base); 01188 fprintf (fp->fp, "1040\n%f\n", viewport->x_snap_spacing); 01189 fprintf (fp->fp, "1040\n%f\n", viewport->y_snap_spacing); 01190 fprintf (fp->fp, "1040\n%f\n", viewport->x_grid_spacing); 01191 fprintf (fp->fp, "1040\n%f\n", viewport->y_grid_spacing); 01192 fprintf (fp->fp, "1070\n%d\n", viewport->plot_flag); 01193 fprintf (fp->fp, "1002\n%s\n", DXF_VIEWPORT_FROZEN_LAYER_LIST_BEGIN); 01194 /* Start a loop writing all frozen layer names. */ 01195 int j = 0; 01196 while ((!viewport->frozen_layers[j]) /* Do not allow NULL pointers. */ 01197 || (strcmp (viewport->frozen_layers[j], "") == 1) /* Do not allow empty strings. */ 01198 || (j < DXF_MAX_LAYERS)) /* Do not overrun the array size. */ 01199 { 01200 fprintf (fp->fp, "1003\n%s\n", viewport->frozen_layers[j]); 01201 j++; 01202 } 01203 fprintf (fp->fp, "1002\n%s\n", DXF_VIEWPORT_FROZEN_LAYER_LIST_END); 01204 fprintf (fp->fp, "1002\n%s\n", DXF_VIEWPORT_WINDOW_END); 01205 /* Clean up. */ 01206 free (dxf_entity_name); 01207 #if DEBUG 01208 DXF_DEBUG_END 01209 #endif 01210 return (EXIT_SUCCESS); 01211 } 01212 01213 01225 int 01226 dxf_viewport_free 01227 ( 01228 DxfViewport *viewport 01231 ) 01232 { 01233 #if DEBUG 01234 DXF_DEBUG_BEGIN 01235 #endif 01236 int i; 01237 01238 /* Do some basic checks. */ 01239 if (viewport == NULL) 01240 { 01241 fprintf (stderr, 01242 (_("Error in %s () a NULL pointer was passed.\n")), 01243 __FUNCTION__); 01244 return (EXIT_FAILURE); 01245 } 01246 if (viewport->next != NULL) 01247 { 01248 fprintf (stderr, 01249 (_("Error in %s () pointer to next was not NULL.\n")), 01250 __FUNCTION__); 01251 return (EXIT_FAILURE); 01252 } 01253 free (viewport->linetype); 01254 free (viewport->layer); 01255 free (viewport->app_name); 01256 free (viewport->viewport_data); 01257 free (viewport->window_descriptor_begin); 01258 free (viewport->frozen_layer_list_begin); 01259 for (i = 0; i < DXF_MAX_LAYERS; i++) 01260 { 01261 if (strcmp (viewport->frozen_layers[i], "") != 0) 01262 { 01263 free (viewport->frozen_layers[i]); 01264 } 01265 } 01266 free (viewport->frozen_layer_list_end); 01267 free (viewport->window_descriptor_end); 01268 free (viewport); 01269 viewport = NULL; 01270 #if DEBUG 01271 DXF_DEBUG_END 01272 #endif 01273 return (EXIT_SUCCESS); 01274 } 01275 01276 01287 void 01288 dxf_viewport_free_chain 01289 ( 01290 DxfViewport *viewports 01293 ) 01294 { 01295 #ifdef DEBUG 01296 DXF_DEBUG_BEGIN 01297 #endif 01298 if (viewports == NULL) 01299 { 01300 fprintf (stderr, 01301 (_("Warning in %s () a NULL pointer was passed.\n")), 01302 __FUNCTION__); 01303 } 01304 while (viewports != NULL) 01305 { 01306 struct DxfViewport *iter = viewports->next; 01307 dxf_viewport_free (viewports); 01308 viewports = (DxfViewport *) iter; 01309 } 01310 #if DEBUG 01311 DXF_DEBUG_END 01312 #endif 01313 } 01314 01315 01316 /* EOF */
