xref: /dragonfly/contrib/dialog/mousewget.c (revision cfd1aba3)
1 /*
2  * $Id: mousewget.c,v 1.22 2012/11/30 10:23:49 tom Exp $
3  *
4  * mousewget.c -- mouse/wgetch support for dialog
5  *
6  * Copyright 2000-2008,2012   Thomas E. Dickey
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU Lesser General Public License, version 2.1
10  *  as published by the Free Software Foundation.
11  *
12  *  This program is distributed in the hope that it will be useful, but
13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  *  Lesser General Public License for more details.
16  *
17  *  You should have received a copy of the GNU Lesser General Public
18  *  License along with this program; if not, write to
19  *	Free Software Foundation, Inc.
20  *	51 Franklin St., Fifth Floor
21  *	Boston, MA 02110, USA.
22  */
23 
24 #include <dialog.h>
25 #include <dlg_keys.h>
26 
27 static int
28 mouse_wgetch(WINDOW *win, int *fkey, bool ignore_errs)
29 {
30     int mouse_err = FALSE;
31     int key;
32 
33     do {
34 
35 	key = dlg_getc(win, fkey);
36 
37 #if USE_MOUSE
38 
39 	mouse_err = FALSE;
40 	if (key == KEY_MOUSE) {
41 	    MEVENT event;
42 	    mseRegion *p;
43 
44 	    if (getmouse(&event) != ERR) {
45 		if ((p = dlg_mouse_region(event.y, event.x)) != 0) {
46 		    key = DLGK_MOUSE(p->code);
47 		} else if ((p = dlg_mouse_bigregion(event.y, event.x)) != 0) {
48 		    int x = event.x - p->x;
49 		    int y = event.y - p->y;
50 		    int row = (p->X - p->x) / p->step_x;
51 
52 		    key = -(p->code);
53 		    switch (p->mode) {
54 		    case 1:	/* index by lines */
55 			key += y;
56 			break;
57 		    case 2:	/* index by columns */
58 			key += (x / p->step_x);
59 			break;
60 		    default:
61 		    case 3:	/* index by cells */
62 			key += (x / p->step_x) + (y * row);
63 			break;
64 		    }
65 		} else {
66 		    (void) beep();
67 		    mouse_err = TRUE;
68 		}
69 	    } else {
70 		(void) beep();
71 		mouse_err = TRUE;
72 	    }
73 	}
74 #endif
75 
76     } while (ignore_errs && mouse_err);
77 
78     return key;
79 }
80 
81 int
82 dlg_mouse_wgetch(WINDOW *win, int *fkey)
83 {
84     return mouse_wgetch(win, fkey, TRUE);
85 }
86 
87 int
88 dlg_mouse_wgetch_nowait(WINDOW *win, int *fkey)
89 {
90     return mouse_wgetch(win, fkey, FALSE);
91 }
92