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| | /* Copyright Massachusetts Institute of Technology 1985 */
#include "copyright.h"
/*
* XMenu: MIT Project Athena, X Window system menu package
*
* XMenuInsertSelection - Inserts a selection into an XMenu object
*
* Author: Tony Della Fera, DEC
* 20-Nov-85
*
*/
#include "XMenuInt.h"
int
XMenuInsertSelection(register XMenu *menu, register int p_num, register int s_num, char *data, char *label, int active)
/* Menu object to be modified. */
/* Pane number to be modified. */
/* Selection number of new selection. */
/* Data value. */
/* Selection label. */
/* Make selection active? */
{
register XMPane *p_ptr; /* XMPane pointer. */
register XMSelect *s_ptr; /* XMSelect pointer. */
XMSelect *sel; /* Newly created selection. */
int label_length; /* Label length 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.
*/
p_ptr = _XMGetPanePtr(menu, p_num);
if (p_ptr == NULL) return(XM_FAILURE);
/*
* Find the selection number one less than the one specified since that
* is the selection after which the insertion will occur.
*/
s_ptr = _XMGetSelectionPtr(p_ptr, (s_num - 1));
if (s_ptr == NULL) return(XM_FAILURE);
/*
* Calloc the XMSelect structure.
*/
sel = (XMSelect *)calloc(1, sizeof(XMSelect));
if (sel == 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, "---"))
{
sel->type = SEPARATOR;
sel->active = 0;
}
else
{
sel->type = SELECTION;
sel->active = active;
}
sel->active = active;
sel->serial = -1;
sel->label = label;
sel->label_width = label_width;
sel->label_length = label_length;
sel->data = data;
sel->parent_p = p_ptr;
/*
* Insert the selection after the selection with the selection
* number one less than the desired number for the new selection.
*/
emacs_insque(sel, s_ptr);
/*
* Update the selection count.
*/
p_ptr->s_count++;
/*
* Schedule a recompute.
*/
menu->recompute = 1;
/*
* Return the selection number just inserted.
*/
_XMErrorCode = XME_NO_ERROR;
return(s_num);
}
|