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authorPeter Wemm <peter@FreeBSD.org>1999-08-24 01:06:48 +0000
committerPeter Wemm <peter@FreeBSD.org>1999-08-24 01:06:48 +0000
commit0e3d540892016a47f6a68ec9ba2879d35ce5f7c2 (patch)
treead214c5b2c8142ad6dc6d2ce3a9c83e6317d7f77 /contrib/ncurses/form/fld_def.c
downloadsrc-0e3d540892016a47f6a68ec9ba2879d35ce5f7c2.tar.gz
src-0e3d540892016a47f6a68ec9ba2879d35ce5f7c2.zip
Import unmodified (but trimmed) ncurses 5.0 prerelease 990821.vendor/ncurses/5.0-19990821
This contains the full eti (panel, form, menu) extensions. bmake glue to follow. Obtained from: ftp://ftp.clark.net/pub/dickey/ncurses
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=50276 svn path=/vendor/ncurses/5.0-19990821/; revision=50278; tag=vendor/ncurses/5.0-19990821
Diffstat (limited to 'contrib/ncurses/form/fld_def.c')
-rw-r--r--contrib/ncurses/form/fld_def.c346
1 files changed, 346 insertions, 0 deletions
diff --git a/contrib/ncurses/form/fld_def.c b/contrib/ncurses/form/fld_def.c
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+++ b/contrib/ncurses/form/fld_def.c
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+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
+ ****************************************************************************/
+
+#include "form.priv.h"
+
+MODULE_ID("$Id: fld_def.c,v 1.12 1999/05/16 17:37:48 juergen Exp $")
+
+/* this can't be readonly */
+static FIELD default_field = {
+ 0, /* status */
+ 0, /* rows */
+ 0, /* cols */
+ 0, /* frow */
+ 0, /* fcol */
+ 0, /* drows */
+ 0, /* dcols */
+ 0, /* maxgrow*/
+ 0, /* nrow */
+ 0, /* nbuf */
+ NO_JUSTIFICATION, /* just */
+ 0, /* page */
+ 0, /* index */
+ (int)' ', /* pad */
+ A_NORMAL, /* fore */
+ A_NORMAL, /* back */
+ ALL_FIELD_OPTS, /* opts */
+ (FIELD *)0, /* snext */
+ (FIELD *)0, /* sprev */
+ (FIELD *)0, /* link */
+ (FORM *)0, /* form */
+ (FIELDTYPE *)0, /* type */
+ (char *)0, /* arg */
+ (char *)0, /* buf */
+ (char *)0 /* usrptr */
+};
+
+FIELD *_nc_Default_Field = &default_field;
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : TypeArgument *_nc_Make_Argument(
+| const FIELDTYPE *typ,
+| va_list *ap,
+| int *err )
+|
+| Description : Create an argument structure for the specified type.
+| Use the type-dependant argument list to construct
+| it.
+|
+| Return Values : Pointer to argument structure. Maybe NULL.
+| In case of an error in *err an errorcounter is increased.
++--------------------------------------------------------------------------*/
+TypeArgument*
+_nc_Make_Argument(const FIELDTYPE *typ, va_list *ap, int *err)
+{
+ TypeArgument *res = (TypeArgument *)0;
+ TypeArgument *p;
+
+ if (typ && (typ->status & _HAS_ARGS))
+ {
+ assert(err && ap);
+ if (typ->status & _LINKED_TYPE)
+ {
+ p = (TypeArgument *)malloc(sizeof(TypeArgument));
+ if (p)
+ {
+ p->left = _nc_Make_Argument(typ->left ,ap,err);
+ p->right = _nc_Make_Argument(typ->right,ap,err);
+ return p;
+ }
+ else
+ *err += 1;
+ } else
+ {
+ assert(typ->makearg);
+ if ( !(res=(TypeArgument *)typ->makearg(ap)) )
+ *err += 1;
+ }
+ }
+ return res;
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : TypeArgument *_nc_Copy_Argument(const FIELDTYPE *typ,
+| const TypeArgument *argp,
+| int *err )
+|
+| Description : Create a copy of an argument structure for the specified
+| type.
+|
+| Return Values : Pointer to argument structure. Maybe NULL.
+| In case of an error in *err an errorcounter is increased.
++--------------------------------------------------------------------------*/
+TypeArgument*
+_nc_Copy_Argument(const FIELDTYPE *typ,
+ const TypeArgument *argp, int *err)
+{
+ TypeArgument *res = (TypeArgument *)0;
+ TypeArgument *p;
+
+ if ( typ && (typ->status & _HAS_ARGS) )
+ {
+ assert(err && argp);
+ if (typ->status & _LINKED_TYPE)
+ {
+ p = (TypeArgument *)malloc(sizeof(TypeArgument));
+ if (p)
+ {
+ p->left = _nc_Copy_Argument(typ,argp->left ,err);
+ p->right = _nc_Copy_Argument(typ,argp->right,err);
+ return p;
+ }
+ *err += 1;
+ }
+ else
+ {
+ if (typ->copyarg)
+ {
+ if (!(res = (TypeArgument *)(typ->copyarg((const void *)argp))))
+ *err += 1;
+ }
+ else
+ res = (TypeArgument *)argp;
+ }
+ }
+ return res;
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : void _nc_Free_Argument(const FIELDTYPE *typ,
+| TypeArgument * argp )
+|
+| Description : Release memory associated with the argument structure
+| for the given fieldtype.
+|
+| Return Values : -
++--------------------------------------------------------------------------*/
+void
+_nc_Free_Argument(const FIELDTYPE * typ, TypeArgument * argp)
+{
+ if (!typ || !(typ->status & _HAS_ARGS))
+ return;
+
+ if (typ->status & _LINKED_TYPE)
+ {
+ assert(argp);
+ _nc_Free_Argument(typ->left ,argp->left );
+ _nc_Free_Argument(typ->right,argp->right);
+ free(argp);
+ }
+ else
+ {
+ if (typ->freearg)
+ typ->freearg((void *)argp);
+ }
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : bool _nc_Copy_Type( FIELD *dst, FIELD const *src )
+|
+| Description : Copy argument structure of field src to field dst
+|
+| Return Values : TRUE - copy worked
+| FALSE - error occured
++--------------------------------------------------------------------------*/
+bool
+_nc_Copy_Type(FIELD *dst, FIELD const *src)
+{
+ int err = 0;
+
+ assert(dst && src);
+
+ dst->type = src->type;
+ dst->arg = (void *)_nc_Copy_Argument(src->type,(TypeArgument *)(src->arg),&err);
+
+ if (err)
+ {
+ _nc_Free_Argument(dst->type,(TypeArgument *)(dst->arg));
+ dst->type = (FIELDTYPE *)0;
+ dst->arg = (void *)0;
+ return FALSE;
+ }
+ else
+ {
+ if (dst->type)
+ dst->type->ref++;
+ return TRUE;
+ }
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : void _nc_Free_Type( FIELD *field )
+|
+| Description : Release Argument structure for this field
+|
+| Return Values : -
++--------------------------------------------------------------------------*/
+void
+_nc_Free_Type(FIELD *field)
+{
+ assert(field);
+ if (field->type)
+ field->type->ref--;
+ _nc_Free_Argument(field->type,(TypeArgument *)(field->arg));
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : FIELD *new_field( int rows, int cols,
+| int frow, int fcol,
+| int nrow, int nbuf )
+|
+| Description : Create a new field with this many 'rows' and 'cols',
+| starting at 'frow/fcol' in the subwindow of the form.
+| Allocate 'nrow' off-screen rows and 'nbuf' additional
+| buffers. If an error occurs, errno is set to
+|
+| E_BAD_ARGUMENT - invalid argument
+| E_SYSTEM_ERROR - system error
+|
+| Return Values : Pointer to the new field or NULL if failure.
++--------------------------------------------------------------------------*/
+FIELD *new_field(int rows, int cols, int frow, int fcol, int nrow, int nbuf)
+{
+ FIELD *New_Field = (FIELD *)0;
+ int err = E_BAD_ARGUMENT;
+
+ if (rows>0 &&
+ cols>0 &&
+ frow>=0 &&
+ fcol>=0 &&
+ nrow>=0 &&
+ nbuf>=0 &&
+ ((err = E_SYSTEM_ERROR) != 0) && /* trick: this resets the default error */
+ (New_Field=(FIELD *)malloc(sizeof(FIELD))) )
+ {
+ *New_Field = default_field;
+ New_Field->rows = rows;
+ New_Field->cols = cols;
+ New_Field->drows = rows + nrow;
+ New_Field->dcols = cols;
+ New_Field->frow = frow;
+ New_Field->fcol = fcol;
+ New_Field->nrow = nrow;
+ New_Field->nbuf = nbuf;
+ New_Field->link = New_Field;
+
+ if (_nc_Copy_Type(New_Field,&default_field))
+ {
+ size_t len;
+
+ len = Total_Buffer_Size(New_Field);
+ if ((New_Field->buf = (char *)malloc(len)))
+ {
+ /* Prefill buffers with blanks and insert terminating zeroes
+ between buffers */
+ int i;
+
+ memset(New_Field->buf,' ',len);
+ for(i=0;i<=New_Field->nbuf;i++)
+ {
+ New_Field->buf[(New_Field->drows*New_Field->cols+1)*(i+1)-1]
+ = '\0';
+ }
+ return New_Field;
+ }
+ }
+ }
+
+ if (New_Field)
+ free_field(New_Field);
+
+ SET_ERROR( err );
+ return (FIELD *)0;
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : int free_field( FIELD *field )
+|
+| Description : Frees the storage allocated for the field.
+|
+| Return Values : E_OK - success
+| E_BAD_ARGUMENT - invalid field pointer
+| E_CONNECTED - field is connected
++--------------------------------------------------------------------------*/
+int free_field(FIELD * field)
+{
+ if (!field)
+ RETURN(E_BAD_ARGUMENT);
+
+ if (field->form)
+ RETURN(E_CONNECTED);
+
+ if (field == field->link)
+ {
+ if (field->buf)
+ free(field->buf);
+ }
+ else
+ {
+ FIELD *f;
+
+ for(f=field;f->link != field;f = f->link)
+ {}
+ f->link = field->link;
+ }
+ _nc_Free_Type(field);
+ free(field);
+ RETURN(E_OK);
+}
+
+/* fld_def.c ends here */