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 *	XMenuLocate - Return data necessary to position and locate
10 *		      a menu on the screen.
11 *
12 *	Author:		Tony Della Fera, DEC
13 *			January 11, 1985
14 *
15 */
16
17#include "XMenuInt.h"
18
19int
20XMenuLocate(display, menu, p_num, s_num, x_pos, y_pos, ul_x, ul_y, width, height)
21    register Display *display;	/* Previously opened display. */
22    register XMenu *menu;	/* Menu object being located. */
23    int p_num;			/* Active pane number. */
24    int s_num;			/* Active selection number. */
25    int x_pos;			/* X coordinate of mouse active position. */
26    int y_pos;			/* Y coordinate of mouse active position. */
27    int *ul_x;			/* Returned upper left menu X coordinate. */
28    int *ul_y;			/* Returned upper left menu Y coordinate. */
29    int *width;			/* Returned menu width. */
30    int *height;		/* Returned menu height. */
31{
32    register XMPane *p_ptr;	/* XMPane pointer. */
33    register XMSelect *s_ptr;	/* XMSelect pointer. */
34
35    /*
36     * Are the position arguments positive?
37     */
38    if ((x_pos <= 0) || (y_pos <= 0)) {
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
54    /*
55     * Check to see that the menu's dependencies have been
56     * recomputed and are up to date.  If not, do it now.
57     */
58    if (menu->recompute) XMenuRecompute(display, menu);
59
60    /*
61     * Compute the new menu origin such that the active point lies
62     * in the center of the desired active pane and selection.
63     * This sets the values of ul_x and ul_y.
64     */
65    _XMTransToOrigin(display, menu, p_ptr, s_ptr, x_pos, y_pos, ul_x, ul_y);
66
67    /*
68     * Set remaining return argument values.
69     */
70    *width = menu->width;
71    *height = menu->height;
72
73    /*
74     * Return successfully.
75     */
76    _XMErrorCode = XME_NO_ERROR;
77    return(XM_SUCCESS);
78}
79
80/* arch-tag: 1ff94bab-cf67-4c92-bff4-dc0130153173
81   (do not change this comment) */
82