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 /**   Context Management (Context)                                        */
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_context.h"
30 
31 /**************************************************************************/
32 /*                                                                        */
33 /*  FUNCTION                                               RELEASE        */
34 /*                                                                        */
35 /*    _gx_context_font_get                                PORTABLE C      */
36 /*                                                           6.1          */
37 /*  AUTHOR                                                                */
38 /*                                                                        */
39 /*    Kenneth Maxwell, Microsoft Corporation                              */
40 /*                                                                        */
41 /*  DESCRIPTION                                                           */
42 /*                                                                        */
43 /*    This service gets font associated with the specified resource ID.   */
44 /*                                                                        */
45 /*  INPUT                                                                 */
46 /*                                                                        */
47 /*    resource_id                           Resource ID of font           */
48 /*    return_font                           Pointer to destination for    */
49 /*                                            font pointer                */
50 /*                                                                        */
51 /*  OUTPUT                                                                */
52 /*                                                                        */
53 /*    status                                Completion status             */
54 /*                                                                        */
55 /*  CALLS                                                                 */
56 /*                                                                        */
57 /*    None                                                                */
58 /*                                                                        */
59 /*  CALLED BY                                                             */
60 /*                                                                        */
61 /*    Application Code                                                    */
62 /*    _gx_context_font_set                                                */
63 /*                                                                        */
64 /*  RELEASE HISTORY                                                       */
65 /*                                                                        */
66 /*    DATE              NAME                      DESCRIPTION             */
67 /*                                                                        */
68 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
69 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
70 /*                                            resulting in version 6.1    */
71 /*                                                                        */
72 /**************************************************************************/
_gx_context_font_get(GX_RESOURCE_ID resource_id,GX_FONT ** return_font)73 UINT  _gx_context_font_get(GX_RESOURCE_ID resource_id, GX_FONT **return_font)
74 {
75 GX_DRAW_CONTEXT *context = _gx_system_current_draw_context;
76 GX_DISPLAY      *display;
77 GX_RESOURCE_ID   font_table_size;
78 
79     *return_font = GX_NULL;
80 
81     display = context -> gx_draw_context_display;
82 
83     /* Pickup the font table size.  */
84     font_table_size =  display -> gx_display_font_table_size;
85 
86     /* Determine if the ID is within range.  */
87     if (resource_id < font_table_size)
88     {
89         /* Yes, the ID is within range. Perform a table lookup and return the
90             font poiner.  */
91         *return_font = display -> gx_display_font_table[resource_id];
92     }
93     else
94     {
95         return(GX_INVALID_RESOURCE_ID);
96     }
97 
98     return(GX_SUCCESS);
99 }
100 
101