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 /**   String Scroll Wheel Management (Scroll Wheel)                       */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "gx_api.h"
27 #include "gx_scroll_wheel.h"
28 #include "gx_system.h"
29 #include "gx_widget.h"
30 #include "gx_utility.h"
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _gx_string_scroll_wheel_text_get                    PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Kenneth Maxwell, Microsoft Corporation                              */
41 /*                                                                        */
42 /*  DESCRIPTION (Deprecated)                                              */
43 /*                                                                        */
44 /*    This function returns pointer into string list.                     */
45 /*                                                                        */
46 /*  INPUT                                                                 */
47 /*                                                                        */
48 /*    wheel                                 Scroll wheel control block    */
49 /*    row                                   desired text row              */
50 /*                                                                        */
51 /*  OUTPUT                                                                */
52 /*                                                                        */
53 /*    status                                Completion status             */
54 /*                                                                        */
55 /*  CALLS                                                                 */
56 /*                                                                        */
57 /*    _gx_system_string_get           Retrieve string by ID               */
58 /*    _gx_system_private_string_get   Retrieve string pointer in          */
59 /*                                      dynamically copied string buffer  */
60 /*                                                                        */
61 /*  CALLED BY                                                             */
62 /*                                                                        */
63 /*    _gx_text_scroll_wheel_draw                                          */
64 /*                                                                        */
65 /*  RELEASE HISTORY                                                       */
66 /*                                                                        */
67 /*    DATE              NAME                      DESCRIPTION             */
68 /*                                                                        */
69 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
70 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
71 /*                                            resulting in version 6.1    */
72 /*                                                                        */
73 /**************************************************************************/
_gx_string_scroll_wheel_text_get(GX_STRING_SCROLL_WHEEL * wheel,INT row,GX_STRING * string)74 UINT  _gx_string_scroll_wheel_text_get(GX_STRING_SCROLL_WHEEL *wheel, INT row, GX_STRING *string)
75 {
76 #if defined(GX_ENABLE_DEPRECATED_STRING_API)
77 GX_CONST GX_CHAR **string_list_deprecated;
78 UINT               status = GX_SUCCESS;
79 #endif
80 
81     string -> gx_string_ptr = GX_NULL;
82     string -> gx_string_length = 0;
83 
84 #if defined(GX_ENABLE_DEPRECATED_STRING_API)
85     if ((wheel -> gx_string_scroll_wheel_string_list_deprecated == GX_NULL &&
86          wheel -> gx_string_scroll_wheel_string_list == GX_NULL &&
87          wheel -> gx_string_scroll_wheel_string_id_list == GX_NULL) ||
88         (row >= wheel -> gx_scroll_wheel_total_rows))
89     {
90         return GX_SUCCESS;
91     }
92 #else
93     if ((wheel -> gx_string_scroll_wheel_string_list == GX_NULL &&
94          wheel -> gx_string_scroll_wheel_string_id_list == GX_NULL) ||
95         row >= wheel -> gx_scroll_wheel_total_rows)
96     {
97         return GX_SUCCESS;
98     }
99 #endif
100 
101     if (wheel -> gx_string_scroll_wheel_string_id_list)
102     {
103         _gx_widget_string_get_ext((GX_WIDGET *)wheel, wheel -> gx_string_scroll_wheel_string_id_list[row], string);
104     }
105     else
106     {
107 #if defined(GX_ENABLE_DEPRECATED_STRING_API)
108         if (wheel -> gx_string_scroll_wheel_string_list_deprecated)
109         {
110             _gx_system_private_string_list_get(wheel -> gx_string_scroll_wheel_string_list_deprecated, &string_list_deprecated, wheel -> gx_widget_style);
111             string -> gx_string_ptr = string_list_deprecated[row];
112 
113             status = _gx_utility_string_length_check(string -> gx_string_ptr, &string -> gx_string_length, GX_MAX_STRING_LENGTH);
114 
115             if (status != GX_SUCCESS)
116             {
117                 string -> gx_string_ptr = GX_NULL;
118                 string -> gx_string_length = 0;
119             }
120             return status;
121         }
122 #endif
123 
124         *string = wheel -> gx_string_scroll_wheel_string_list[row];
125     }
126 
127     return GX_SUCCESS;
128 }
129 
130