1 /***************************************************************************
2  * Copyright (c) 2024 Microsoft Corporation
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the MIT License which is available at
6  * https://opensource.org/licenses/MIT.
7  *
8  * SPDX-License-Identifier: MIT
9  **************************************************************************/
10 
11 
12 /**************************************************************************/
13 /**************************************************************************/
14 /**                                                                       */
15 /** GUIX Component                                                        */
16 /**                                                                       */
17 /**   Button Management (Button)                                          */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "gx_api.h"
27 #include "gx_widget.h"
28 #include "gx_button.h"
29 
30 
31 /**************************************************************************/
32 /*                                                                        */
33 /*  FUNCTION                                               RELEASE        */
34 /*                                                                        */
35 /*    _gx_button_siblings_deselect                        PORTABLE C      */
36 /*                                                           6.1          */
37 /*  AUTHOR                                                                */
38 /*                                                                        */
39 /*    Kenneth Maxwell, Microsoft Corporation                              */
40 /*                                                                        */
41 /*  DESCRIPTION                                                           */
42 /*                                                                        */
43 /*    This function deselects all sibling buttons of the caller that      */
44 /*    have GX_STYLE_BUTTON_RADIO style.                                   */
45 /*                                                                        */
46 /*  INPUT                                                                 */
47 /*                                                                        */
48 /*    button                                Button control block          */
49 /*                                                                        */
50 /*  OUTPUT                                                                */
51 /*                                                                        */
52 /*    None                                                                */
53 /*                                                                        */
54 /*  CALLS                                                                 */
55 /*                                                                        */
56 /*    [gx_button_deselect_handler]          Widget-provided deselect      */
57 /*                                            handler routine             */
58 /*                                                                        */
59 /*  CALLED BY                                                             */
60 /*                                                                        */
61 /*    _gx_button_select                                                   */
62 /*                                                                        */
63 /*  RELEASE HISTORY                                                       */
64 /*                                                                        */
65 /*    DATE              NAME                      DESCRIPTION             */
66 /*                                                                        */
67 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
68 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
69 /*                                            resulting in version 6.1    */
70 /*                                                                        */
71 /**************************************************************************/
_gx_button_siblings_deselect(GX_BUTTON * button)72 VOID  _gx_button_siblings_deselect(GX_BUTTON *button)
73 {
74 GX_WIDGET *parent;
75 GX_WIDGET *test;
76 GX_WIDGET *widget;
77 GX_BUTTON *sibling;
78 
79     widget = (GX_WIDGET *)button;
80     parent = widget -> gx_widget_parent;
81     test = parent -> gx_widget_first_child;
82 
83     while (test)
84     {
85         /* not the incoming widget? */
86         if (test != widget)
87         {
88             /* is this widget a button? */
89             if (test -> gx_widget_status & GX_STATUS_BUTTON_DERIVED)
90             {
91                 sibling = (GX_BUTTON *)test;
92 
93                 /* is this a pushed radio button?  */
94                 if ((test -> gx_widget_style & (GX_STYLE_BUTTON_RADIO | GX_STYLE_BUTTON_PUSHED)) ==
95                     (GX_STYLE_BUTTON_RADIO | GX_STYLE_BUTTON_PUSHED))
96                 {
97                     sibling -> gx_button_deselect_handler(test, GX_TRUE);
98                 }
99             }
100         }
101         test = test -> gx_widget_next;
102     }
103 }
104 
105