field.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include <stdlib.h>
#include "utility.h"
/*
* default field
*/
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 */
' ', /* pad */
A_NORMAL, /* fore */
A_NORMAL, /* back */
O_VISIBLE |
O_ACTIVE |
O_PUBLIC |
O_EDIT |
O_WRAP |
O_BLANK |
O_AUTOSKIP |
O_NULLOK |
O_PASSOK |
O_STATIC, /* 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 * _DEFAULT_FIELD = &default_field;
/*
* MakeType
*/
static int
MakeType(FIELD *f, va_list *ap)
{
int err = 0;
f->arg = MakeArg(f, ap, &err); /* pick off type specific args */
if (err) {
FreeArg(f); /* release type specific args */
f->type = (FIELDTYPE *)0;
f->arg = (char *)0;
return (FALSE);
}
IncrType(f->type); /* increment reference count */
return (TRUE);
}
/*
* CopyType
*/
static int
CopyType(FIELD *f, FIELD *fsrc)
{
int err = 0;
f->type = fsrc->type; /* copy field type */
f->arg = CopyArg(fsrc, &err); /* copy type specific info */
if (err) {
FreeArg(f); /* release type specific args */
f->type = (FIELDTYPE *)0;
f->arg = (char *)0;
return (FALSE);
}
IncrType(f->type); /* increment reference count */
return (TRUE);
}
/*
* FreeType
*/
static void
FreeType(FIELD *f)
{
DecrType(f->type); /* decrement reference count */
FreeArg(f); /* release type specific args */
}
/*
* new_field
*/
FIELD *
new_field(int rows, int cols, int frow, int fcol, int nrow, int nbuf)
/* int rows; number of visible rows */
/* int cols; number of visible cols */
/* int frow; first row relative to form origin */
/* int fcol; first col relative to form origin */
/* int nrow; number of off screen rows */
/* int nbuf; number of additional buffers */
{
FIELD *f = (FIELD *) 0;
int i, size;
if (rows > 0 && cols > 0 && frow >= 0 && fcol >= 0 && nrow >= 0 &&
nbuf >= 0 && Alloc(f, FIELD)) {
*f = *_DEFAULT_FIELD;
f->rows = rows;
f->cols = cols;
f->frow = frow;
f->fcol = fcol;
f->drows = rows + nrow;
f->dcols = cols;
f->nrow = nrow;
f->nbuf = nbuf;
f->link = f;
if (CopyType(f, _DEFAULT_FIELD)) {
size = TotalBuf(f);
if (arrayAlloc(Buf(f), size, char)) {
(void) memset(Buf(f), ' ', size);
for (i = 0; i <= f->nbuf; ++i)
*(Buffer(f, i + 1) - 1) = '\0';
return (f);
}
}
}
(void) free_field(f);
return ((FIELD *) 0);
}
/*
* dup_field
*/
FIELD *
dup_field(FIELD *field, int frow, int fcol)
/* FIELD * field; field to duplicate */
/* int frow; first row relative to form origin */
/* int fcol; first col relative to form origin */
{
FIELD *f = (FIELD *) 0;
int size;
if (field && frow >= 0 && fcol >= 0 && Alloc(f, FIELD)) {
*f = *_DEFAULT_FIELD;
f->frow = frow;
f->fcol = fcol;
f->link = f;
f->rows = field->rows;
f->cols = field->cols;
f->drows = field->drows;
f->dcols = field->dcols;
f->maxgrow = field->maxgrow;
f->nrow = field->nrow;
f->nbuf = field->nbuf;
f->just = field->just;
f->fore = field->fore;
f->back = field->back;
f->pad = field->pad;
f->opts = field->opts;
f->usrptr = field->usrptr;
f->status = Status(field, GROWABLE);
if (CopyType(f, field)) {
size = TotalBuf(f);
if (arrayAlloc(Buf(f), size, char)) {
(void) memcpy(Buf(f), Buf(field), size);
return (f);
}
}
}
(void) free_field(f);
return ((FIELD *) 0);
}
/*
* link_field
*/
FIELD *
link_field(FIELD *field, int frow, int fcol)
/* FIELD * field; field to link to */
/* int frow; first row relative to form origin */
/* int fcol; first col relative to form origin */
{
FIELD *f = (FIELD *) 0;
if (field && frow >= 0 && fcol >= 0 && Alloc(f, FIELD)) {
*f = *_DEFAULT_FIELD;
f->frow = frow;
f->fcol = fcol;
f->link = field->link;
field->link = f; /* add field to linked list */
f->buf = field->buf;
f->rows = field->rows;
f->cols = field->cols;
f->drows = field->drows;
f->dcols = field->dcols;
f->maxgrow = field->maxgrow;
f->nrow = field->nrow;
f->nbuf = field->nbuf;
f->just = field->just;
f->fore = field->fore;
f->back = field->back;
f->pad = field->pad;
f->opts = field->opts;
f->usrptr = field->usrptr;
f->status = Status(field, GROWABLE);
if (CopyType(f, field))
return (f);
}
(void) free_field(f);
return ((FIELD *) 0);
}
/*
* free_field
*/
int
free_field(FIELD *f)
{
FIELD *p;
if (!f)
return (E_BAD_ARGUMENT);
if (f->form)
return (E_CONNECTED);
if (f->link != f) { /* check for linked field */
for (p = f->link; p->link != f; p = p->link)
;
p->link = f->link; /* delete from list */
} else
Free(Buf(f)); /* free buffer space */
FreeType(f);
Free(f);
return (E_OK);
}
/*
* field_info
*/
int
field_info(FIELD *f, int *rows, int *cols, int *frow, int *fcol,
int *nrow, int *nbuf)
/* FIELD *f; field whose information is wanted */
/* int *rows; number of visible rows */
/* int *cols; number of visible cols */
/* int *frow; first row relative to form origin */
/* int *fcol; first col relative to form origin */
/* int *nrow; number of off screen rows */
/* int *nbuf; number of additional buffers */
{
if (!f)
return (E_BAD_ARGUMENT);
*rows = f->rows;
*cols = f->cols;
*frow = f->frow;
*fcol = f->fcol;
*nrow = f->nrow;
*nbuf = f->nbuf;
return (E_OK);
}
/*
* set_max_field
*/
int
set_max_field(FIELD *f, int max)
{
BOOLEAN onerow = OneRow(f);
if (!f || max && ((onerow && f->dcols > max) ||
(!onerow && f->drows > max)))
return (E_BAD_ARGUMENT);
f->maxgrow = max;
Clr(f, GROWABLE);
if (!Opt(f, O_STATIC) && ((!max || onerow && f->dcols < max) ||
(!onerow && f->drows < max))) {
Set(f, GROWABLE);
}
return (E_OK);
}
/*
* dynamic_field_info
*/
int
dynamic_field_info(FIELD *f, int *drows, int *dcols, int *max)
/* FIELD *f; field whose information is wanted */
/* int *drows; number of actual rows */
/* int *dcols; number of actual cols */
/* int *max; maximum growth allowable, else -1 */
{
if (!f)
return (E_BAD_ARGUMENT);
*drows = f->drows;
*dcols = f->dcols;
*max = f->maxgrow;
return (E_OK);
}
/*
* move_field
*/
int
move_field(FIELD *f, int frow, int fcol)
/* FIELD *f; field to move */
/* int frow; first row relative to form origin */
/* int fcol; first col relative to form origin */
{
if (! f || frow < 0 || fcol < 0)
return (E_BAD_ARGUMENT);
if (f->form)
return (E_CONNECTED);
f->frow = frow;
f->fcol = fcol;
return (E_OK);
}
/*
* set_field_type
*/
int
set_field_type(FIELD *f, FIELDTYPE *ft, ...)
{
va_list ap;
int v = E_SYSTEM_ERROR;
va_start(ap, ft);
f = Field(f);
FreeType(f); /* free old type */
f->type = ft;
if (MakeType(f, &ap)) /* set up new type */
v = E_OK;
va_end(ap);
return (v);
}
FIELDTYPE *
field_type(FIELD *f)
{
return (Field(f)->type);
}
char *
field_arg(FIELD *f)
{
return (Field(f)->arg);
}
/*
* set_new_page
*/
int
set_new_page(FIELD *f, int flag)
{
f = Field(f);
if (f->form)
return (E_CONNECTED);
if (flag)
Set(f, NEW_PAGE);
else
Clr(f, NEW_PAGE);
return (E_OK);
}
int
new_page(FIELD *f)
{
if (Status(Field(f), NEW_PAGE))
return (TRUE);
else
return (FALSE);
}