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 /**   Widget Management (Widget)                                          */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "gx_api.h"
27 #include "gx_system.h"
28 #include "gx_widget.h"
29 #include "gx_utility.h"
30 
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _gx_widget_attach                                   PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Kenneth Maxwell, Microsoft Corporation                              */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function attached a widget to it's parent, putting the child   */
45 /*    in front of all siblings.                                           */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    parent                                Parent widget control block   */
50 /*    child                                 child widget control block    */
51 /*                                                                        */
52 /*  OUTPUT                                                                */
53 /*                                                                        */
54 /*    status                                Completion status             */
55 /*                                                                        */
56 /*  CALLS                                                                 */
57 /*                                                                        */
58 /*    _gx_system_lock                       Obtain GUIX system lock       */
59 /*    _gx_widget_detach                     Detach from current parent    */
60 /*    _gx_widget_link                       Link widget                   */
61 /*    _gx_system_unlock                     Release GUIX system lock      */
62 /*                                                                        */
63 /*  CALLED BY                                                             */
64 /*                                                                        */
65 /*    Application Code                                                    */
66 /*    GUIX Internal Code                                                  */
67 /*                                                                        */
68 /*  RELEASE HISTORY                                                       */
69 /*                                                                        */
70 /*    DATE              NAME                      DESCRIPTION             */
71 /*                                                                        */
72 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
73 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
74 /*                                            resulting in version 6.1    */
75 /*                                                                        */
76 /**************************************************************************/
77 
_gx_widget_attach(GX_WIDGET * parent,GX_WIDGET * child)78 UINT  _gx_widget_attach(GX_WIDGET *parent, GX_WIDGET *child)
79 {
80     /* lock access to GUIX */
81     GX_ENTER_CRITICAL
82 
83     if (child -> gx_widget_parent)
84     {
85         _gx_widget_detach(child);
86     }
87     _gx_widget_link(parent, child);
88     child -> gx_widget_status &= ~GX_STATUS_HIDDEN;
89 
90     /* Release the protection.  */
91     GX_EXIT_CRITICAL
92 
93     /* Return successful status.  */
94     return(GX_SUCCESS);
95 }
96 
97