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#include "copyright.h"
/* $Header: /cvsroot/emacs/emacs/oldXMenu/ChgSel.c,v 1.1 1999/10/03 19:34:54 fx Exp $ */
/* Copyright Massachusetts Institute of Technology 1985 */
/*
* XMenu: MIT Project Athena, X Window system menu package
*
* XMenuChangeSelection - Change a menu selection.
*
* Author: Tony Della Fera, DEC
* December 19, 1985
*
*/
#include "XMenuInt.h"
int
XMenuChangeSelection(display, menu, p_num, s_num, data, data_sw, label, label_sw)
Display *display; /* previously opened display. */
register XMenu *menu; /* Menu object to be modified. */
register int p_num; /* Pane number to be modified. */
register int s_num; /* Selection number to modified. */
char *data; /* Data value. */
int data_sw; /* Change to new data value? */
char *label; /* Selection label. */
int label_sw; /* Change to new label? */
{
register XMPane *p_ptr; /* XMPane pointer. */
register XMSelect *s_ptr; /* XMSelect pointer. */
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 right selection.
*/
s_ptr = _XMGetSelectionPtr(p_ptr, s_num);
if (s_ptr == NULL) return(XM_FAILURE);
/*
* Reset the label?
*/
if (label_sw) {
/*
* Determine label size.
*/
label_length = strlen(label);
label_width = XTextWidth(menu->s_fnt_info, label, label_length);
/*
* Change the selection data.
*/
s_ptr->label = label;
s_ptr->label_width = label_width;
s_ptr->label_length = label_length;
/*
* Schedule a recompute.
*/
menu->recompute = 1;
}
/*
* Reset the data?
*/
if (data_sw) s_ptr->data = data;
/*
* Return successfully.
*/
_XMErrorCode = XME_NO_ERROR;
return(s_num);
}
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