1/* Copyright    Massachusetts Institute of Technology    1985	*/
2
3#include "copyright.h"
4
5
6/*
7 * XMenu:	MIT Project Athena, X Window system menu package
8 *
9 *	XMenuChangeSelection - Change a menu selection.
10 *
11 *	Author:		Tony Della Fera, DEC
12 *			December 19, 1985
13 *
14 */
15
16#include "XMenuInt.h"
17
18int
19XMenuChangeSelection(display, menu, p_num, s_num, data, data_sw, label, label_sw)
20    Display *display;		/* previously opened display. */
21    register XMenu *menu;	/* Menu object to be modified. */
22    register int p_num;		/* Pane number to be modified. */
23    register int s_num;		/* Selection number to modified. */
24    char *data;			/* Data value. */
25    int data_sw;		/* Change to new data value? */
26    char *label;		/* Selection label. */
27    int label_sw;		/* Change to new label? */
28{
29    register XMPane *p_ptr;	/* XMPane pointer. */
30    register XMSelect *s_ptr;	/* XMSelect pointer. */
31
32    int label_length;		/* Label length in characters. */
33    int label_width;		/* Label width in pixels. */
34
35    /*
36     * Check for NULL pointers!
37     */
38    if (label == NULL) {
39	_XMErrorCode = XME_ARG_BOUNDS;
40	return(XM_FAILURE);
41    }
42
43    /*
44     * Find the right pane.
45     */
46    p_ptr = _XMGetPanePtr(menu, p_num);
47    if (p_ptr == NULL) return(XM_FAILURE);
48
49    /*
50     * Find the right selection.
51     */
52    s_ptr = _XMGetSelectionPtr(p_ptr, s_num);
53    if (s_ptr == NULL) return(XM_FAILURE);
54
55    /*
56     * Reset the label?
57     */
58    if (label_sw) {
59	/*
60	 * Determine label size.
61	 */
62	label_length = strlen(label);
63	label_width = XTextWidth(menu->s_fnt_info, label, label_length);
64
65	/*
66	 * Change the selection data.
67	 */
68	s_ptr->label = label;
69	s_ptr->label_width = label_width;
70	s_ptr->label_length = label_length;
71
72	/*
73	 * Schedule a recompute.
74	 */
75	menu->recompute = 1;
76    }
77
78    /*
79     * Reset the data?
80     */
81    if (data_sw) s_ptr->data = data;
82
83    /*
84     * Return successfully.
85     */
86    _XMErrorCode = XME_NO_ERROR;
87    return(s_num);
88}
89
90/* arch-tag: 229732a6-46bf-4a3a-ad90-3d8ed65c0841
91   (do not change this comment) */
92