1 /**************************************************************************/
2 /*                                                                        */
3 /*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4 /*                                                                        */
5 /*       This software is licensed under the Microsoft Software License   */
6 /*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7 /*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8 /*       and in the root directory of this software.                      */
9 /*                                                                        */
10 /**************************************************************************/
11 
12 
13 /**************************************************************************/
14 /**************************************************************************/
15 /**                                                                       */
16 /** GUIX Component                                                        */
17 /**                                                                       */
18 /**   Window Management (Window)                                          */
19 /**                                                                       */
20 /**************************************************************************/
21 
22 #define GX_SOURCE_CODE
23 
24 
25 /* Include necessary system files.  */
26 
27 #include "gx_api.h"
28 #include "gx_widget.h"
29 #include "gx_window.h"
30 
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _gx_window_view_update_detect                       PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Kenneth Maxwell, Microsoft Corporation                              */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function is called when a window is moved or changes in a way  */
45 /*    that causes viewports to be invalid. Check to see if this window is */
46 /*    a child of the root window, and if so mark the root as needing an   */
47 /*    update.                                                             */
48 /*                                                                        */
49 /*  INPUT                                                                 */
50 /*                                                                        */
51 /*    window                                Window's widget control block */
52 /*                                                                        */
53 /*  OUTPUT                                                                */
54 /*                                                                        */
55 /*    status                                Completion status             */
56 /*                                                                        */
57 /*  CALLS                                                                 */
58 /*                                                                        */
59 /*    none                                                                */
60 /*                                                                        */
61 /*  CALLED BY                                                             */
62 /*                                                                        */
63 /*    Application Code                                                    */
64 /*    GUIX Internal Code                                                  */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
71 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
72 /*                                            resulting in version 6.1    */
73 /*                                                                        */
74 /**************************************************************************/
_gx_window_view_update_detect(GX_WINDOW * window)75 VOID _gx_window_view_update_detect(GX_WINDOW *window)
76 {
77 GX_WINDOW_ROOT *root;
78 GX_WIDGET      *parent;
79 
80     /* pick up a pointer to the parent of this widget */
81 
82     if (window -> gx_widget_type >= GX_TYPE_WINDOW)
83     {
84         parent = window -> gx_widget_parent;
85 
86         if (parent)
87         {
88             /* is my parent a GX_ROOT_WINDOW type? */
89             if (parent -> gx_widget_type == GX_TYPE_ROOT_WINDOW)
90             {
91                 root = (GX_WINDOW_ROOT *)parent;
92                 root -> gx_window_root_views_changed = GX_TRUE;
93             }
94         }
95         else
96         {
97             if (window -> gx_widget_type == GX_TYPE_ROOT_WINDOW)
98             {
99                 root = (GX_WINDOW_ROOT *)window;
100                 root -> gx_window_root_views_changed = GX_TRUE;
101             }
102         }
103     }
104 }
105 
106