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 /**   Context Management (Context)                                        */
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_context.h"
29 
30 /**************************************************************************/
31 /*                                                                        */
32 /*  FUNCTION                                               RELEASE        */
33 /*                                                                        */
34 /*    _gx_context_font_get                                PORTABLE C      */
35 /*                                                           6.1          */
36 /*  AUTHOR                                                                */
37 /*                                                                        */
38 /*    Kenneth Maxwell, Microsoft Corporation                              */
39 /*                                                                        */
40 /*  DESCRIPTION                                                           */
41 /*                                                                        */
42 /*    This service gets font associated with the specified resource ID.   */
43 /*                                                                        */
44 /*  INPUT                                                                 */
45 /*                                                                        */
46 /*    resource_id                           Resource ID of font           */
47 /*    return_font                           Pointer to destination for    */
48 /*                                            font pointer                */
49 /*                                                                        */
50 /*  OUTPUT                                                                */
51 /*                                                                        */
52 /*    status                                Completion status             */
53 /*                                                                        */
54 /*  CALLS                                                                 */
55 /*                                                                        */
56 /*    None                                                                */
57 /*                                                                        */
58 /*  CALLED BY                                                             */
59 /*                                                                        */
60 /*    Application Code                                                    */
61 /*    _gx_context_font_set                                                */
62 /*                                                                        */
63 /*  RELEASE HISTORY                                                       */
64 /*                                                                        */
65 /*    DATE              NAME                      DESCRIPTION             */
66 /*                                                                        */
67 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
68 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
69 /*                                            resulting in version 6.1    */
70 /*                                                                        */
71 /**************************************************************************/
_gx_context_font_get(GX_RESOURCE_ID resource_id,GX_FONT ** return_font)72 UINT  _gx_context_font_get(GX_RESOURCE_ID resource_id, GX_FONT **return_font)
73 {
74 GX_DRAW_CONTEXT *context = _gx_system_current_draw_context;
75 GX_DISPLAY      *display;
76 GX_RESOURCE_ID   font_table_size;
77 
78     *return_font = GX_NULL;
79 
80     display = context -> gx_draw_context_display;
81 
82     /* Pickup the font table size.  */
83     font_table_size =  display -> gx_display_font_table_size;
84 
85     /* Determine if the ID is within range.  */
86     if (resource_id < font_table_size)
87     {
88         /* Yes, the ID is within range. Perform a table lookup and return the
89             font poiner.  */
90         *return_font = display -> gx_display_font_table[resource_id];
91     }
92     else
93     {
94         return(GX_INVALID_RESOURCE_ID);
95     }
96 
97     return(GX_SUCCESS);
98 }
99 
100