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 /**   Rich Text View Management (Rich Text View)                          */
19 /**                                                                       */
20 /**************************************************************************/
21 
22 #define GX_SOURCE_CODE
23 
24 
25 /* Include necessary system files.  */
26 
27 #include "gx_api.h"
28 #include "gx_system.h"
29 #include "gx_rich_text_view.h"
30 
31 /**************************************************************************/
32 /*                                                                        */
33 /*  COMPONENT DEFINITION                                   RELEASE        */
34 /*                                                                        */
35 /*    _gx_rich_text_view_context_restore                  PORTABLE C      */
36 /*                                                           6.1          */
37 /*  AUTHOR                                                                */
38 /*                                                                        */
39 /*    Kenneth Maxwell, Microsoft Corporation                              */
40 /*                                                                        */
41 /*  DESCRIPTION                                                           */
42 /*                                                                        */
43 /*    This function restores rich text context stack to last save point.  */
44 /*                                                                        */
45 /*  INPUT                                                                 */
46 /*                                                                        */
47 /*    None                                                                */
48 /*                                                                        */
49 /*  OUTPUT                                                                */
50 /*                                                                        */
51 /*    status                                Completion status             */
52 /*                                                                        */
53 /*  CALLS                                                                 */
54 /*                                                                        */
55 /*    None                                                                */
56 /*                                                                        */
57 /*  CALLED BY                                                             */
58 /*                                                                        */
59 /*    GUIX Internal Code                                                  */
60 /*                                                                        */
61 /*  RELEASE HISTORY                                                       */
62 /*                                                                        */
63 /*    DATE              NAME                      DESCRIPTION             */
64 /*                                                                        */
65 /*  09-30-2020     Kenneth Maxwell          Initial Version 6.1           */
66 /*                                                                        */
67 /**************************************************************************/
_gx_rich_text_view_context_restore()68 UINT  _gx_rich_text_view_context_restore()
69 {
70 GX_UBYTE top = _gx_system_rich_text_context_stack_save.gx_rich_text_context_stack_top;
71 
72     if (top)
73     {
74         /* Restore stack to last save point. */
75         memcpy(&_gx_system_rich_text_context_stack.gx_rich_text_context_stack, /* Use case of memcpy is verified. */
76                &_gx_system_rich_text_context_stack_save.gx_rich_text_context_stack, sizeof(GX_RICH_TEXT_CONTEXT) * top);
77     }
78 
79     _gx_system_rich_text_context_stack.gx_rich_text_context_stack_top = top;
80 
81     return GX_SUCCESS;
82 }
83 
84