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emacs/oldXMenu/AddSel.c
2005-08-16 10:34:51 +00:00

109 lines
2.5 KiB
C

#include "copyright.h"
/* Copyright Massachusetts Institute of Technology 1985 */
/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. */
/*
* XMenu: MIT Project Athena, X Window system menu package
*
* XMenuAddSelection - Adds a selection to an XMenu object.
*
* Author: Tony Della Fera, DEC
* August, 1985
*
*/
#include <config.h>
#include "XMenuInt.h"
int
XMenuAddSelection(display, menu, p_num, data, label, active, help)
Display *display;
register XMenu *menu; /* Menu object to be modified. */
register int p_num; /* Pane number to be modified. */
char *data; /* Data value. */
char *label; /* Selection label. */
int active; /* Make selection active? */
char *help; /* Help string */
{
register XMPane *pane; /* Pane containing the new selection. */
register XMSelect *select; /* Newly created selection. */
int label_length; /* Label lenght in characters. */
int label_width; /* Label width in pixels. */
/*
* Check for NULL pointers!
*/
if (label == NULL) {
_XMErrorCode = XME_ARG_BOUNDS;
return(XM_FAILURE);
}
/*
* Find the right pane.
*/
pane = _XMGetPanePtr(menu, p_num);
if (pane == NULL) return(XM_FAILURE);
/*
* Calloc the XMSelect structure.
*/
select = (XMSelect *)calloc(1, sizeof(XMSelect));
if (select == NULL) {
_XMErrorCode = XME_CALLOC;
return(XM_FAILURE);
}
/*
* Determine label size.
*/
label_length = strlen(label);
label_width = XTextWidth(menu->s_fnt_info, label, label_length);
/*
* Fill the XMSelect structure.
*/
if (!strcmp (label, "--") || !strcmp (label, "---"))
{
select->type = SEPARATOR;
select->active = 0;
}
else
{
select->type = SELECTION;
select->active = active;
}
select->serial = -1;
select->label = label;
select->label_width = label_width;
select->label_length = label_length;
select->data = data;
select->parent_p = pane;
select->help_string = help;
/*
* Insert the selection at the end of the selection list.
*/
emacs_insque(select, pane->s_list->prev);
/*
* Update the selection count.
*/
pane->s_count++;
/*
* Schedule a recompute.
*/
menu->recompute = 1;
/*
* Return the selection number just added.
*/
_XMErrorCode = XME_NO_ERROR;
return((pane->s_count - 1));
}
/* arch-tag: 0161f024-c739-440d-9498-050280c6c355
(do not change this comment) */