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 /** Widget Management (Widget) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_canvas.h"
29 #include "gx_system.h"
30
31 /* Bring in externs for caller checking code. */
32 GX_CALLER_CHECKING_EXTERNS
33
34 /**************************************************************************/
35 /* */
36 /* FUNCTION RELEASE */
37 /* */
38 /* _gxe_canvas_circle_draw PORTABLE C */
39 /* 6.1 */
40 /* AUTHOR */
41 /* */
42 /* Kenneth Maxwell, Microsoft Corporation */
43 /* */
44 /* DESCRIPTION */
45 /* */
46 /* This function checks for errors in canvas circle draw function call.*/
47 /* */
48 /* INPUT */
49 /* */
50 /* xcenter x-coord of center of circle */
51 /* ycenter y-coord of center of circle */
52 /* r Radius of circle */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* status Completion status */
57 /* */
58 /* CALLS */
59 /* */
60 /* _gxe_canvas_circle_draw Actual canvas circle draw */
61 /* function */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* Application Code */
66 /* */
67 /* RELEASE HISTORY */
68 /* */
69 /* DATE NAME DESCRIPTION */
70 /* */
71 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
72 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
73 /* resulting in version 6.1 */
74 /* */
75 /**************************************************************************/
_gxe_canvas_circle_draw(INT xcenter,INT ycenter,UINT r)76 UINT _gxe_canvas_circle_draw(INT xcenter, INT ycenter, UINT r)
77 {
78 UINT status;
79
80 /* Check for appropriate caller. */
81 GX_INIT_AND_THREADS_CALLER_CHECKING
82
83 /* Check for invalid value. */
84 if (r == 0)
85 {
86 return GX_INVALID_VALUE;
87 }
88
89 /* Check for invalid context. */
90 if (_gx_system_current_draw_context == GX_NULL)
91 {
92 return GX_INVALID_CONTEXT;
93 }
94
95 /* Call actual widget draw function. */
96 status = _gx_canvas_circle_draw(xcenter, ycenter, r);
97
98 /* Return completion status. */
99 return(status);
100 }
101
102
