1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 1998-2010,2012 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Juergen Pfeifer, 1995,1997 * 32 ****************************************************************************/ 33 34 #include "form.priv.h" 35 36 MODULE_ID("$Id: fld_dup.c,v 1.15 2020/02/02 23:34:34 tom Exp $") 37 38 /*--------------------------------------------------------------------------- 39 | Facility : libnform 40 | Function : FIELD *dup_field(FIELD *field, int frow, int fcol) 41 | 42 | Description : Duplicates the field at the specified position. All 43 | field attributes and the buffers are copied. 44 | If an error occurs, errno is set to 45 | 46 | E_BAD_ARGUMENT - invalid argument 47 | E_SYSTEM_ERROR - system error 48 | 49 | Return Values : Pointer to the new field or NULL if failure 50 +--------------------------------------------------------------------------*/ 51 NCURSES_EXPORT(FIELD *) 52 dup_field(FIELD *field, int frow, int fcol) 53 { 54 FIELD *New_Field = (FIELD *)0; 55 int err = E_BAD_ARGUMENT; 56 57 T((T_CALLED("dup_field(%p,%d,%d)"), (void *)field, frow, fcol)); 58 if (field && (frow >= 0) && (fcol >= 0) && 59 ((err = E_SYSTEM_ERROR) != 0) && /* trick : this resets the default error */ 60 (New_Field = typeMalloc(FIELD, 1))) 61 { 62 T((T_CREATE("field %p"), (void *)New_Field)); 63 *New_Field = *_nc_Default_Field; 64 New_Field->frow = (short) frow; 65 New_Field->fcol = (short) fcol; 66 New_Field->link = New_Field; 67 New_Field->rows = field->rows; 68 New_Field->cols = field->cols; 69 New_Field->nrow = field->nrow; 70 New_Field->drows = field->drows; 71 New_Field->dcols = field->dcols; 72 New_Field->maxgrow = field->maxgrow; 73 New_Field->nbuf = field->nbuf; 74 New_Field->just = field->just; 75 New_Field->fore = field->fore; 76 New_Field->back = field->back; 77 New_Field->pad = field->pad; 78 New_Field->opts = field->opts; 79 New_Field->usrptr = field->usrptr; 80 81 if (_nc_Copy_Type(New_Field, field)) 82 { 83 size_t i, len; 84 85 len = Total_Buffer_Size(New_Field); 86 if ((New_Field->buf = (FIELD_CELL *)malloc(len))) 87 { 88 for (i = 0; i < len; ++i) 89 New_Field->buf[i] = field->buf[i]; 90 returnField(New_Field); 91 } 92 } 93 } 94 95 if (New_Field) 96 free_field(New_Field); 97 98 SET_ERROR(err); 99 returnField((FIELD *)0); 100 } 101 102 /* fld_dup.c ends here */ 103