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 |
|
|
/** PIXELMAP Management (PIXELMAP) */ |
18 |
|
|
/** */ |
19 |
|
|
/**************************************************************************/ |
20 |
|
|
|
21 |
|
|
#define GX_SOURCE_CODE |
22 |
|
|
|
23 |
|
|
/* Include necessary system files. */ |
24 |
|
|
|
25 |
|
|
#include "gx_api.h" |
26 |
|
|
#include "gx_widget.h" |
27 |
|
|
|
28 |
|
|
|
29 |
|
|
/**************************************************************************/ |
30 |
|
|
/* */ |
31 |
|
|
/* FUNCTION RELEASE */ |
32 |
|
|
/* */ |
33 |
|
|
/* _gx_widget_transparent_pixelmap_detect PORTABLE C */ |
34 |
|
|
/* 6.1 */ |
35 |
|
|
/* AUTHOR */ |
36 |
|
|
/* */ |
37 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
38 |
|
|
/* */ |
39 |
|
|
/* DESCRIPTION */ |
40 |
|
|
/* */ |
41 |
|
|
/* This function detects whether or not a pixelmap contains */ |
42 |
|
|
/* transparency. */ |
43 |
|
|
/* */ |
44 |
|
|
/* INPUT */ |
45 |
|
|
/* */ |
46 |
|
|
/* pixelmap_id Pixelmap ID */ |
47 |
|
|
/* */ |
48 |
|
|
/* OUTPUT */ |
49 |
|
|
/* */ |
50 |
|
|
/* GX_TRUE or GX_FALSE */ |
51 |
|
|
/* */ |
52 |
|
|
/* CALLS */ |
53 |
|
|
/* */ |
54 |
|
|
/* _gx_widget_canvas_get Retrieve canvas */ |
55 |
|
|
/* */ |
56 |
|
|
/* */ |
57 |
|
|
/* CALLED BY */ |
58 |
|
|
/* */ |
59 |
|
|
/* Application Code */ |
60 |
|
|
/* */ |
61 |
|
|
/* RELEASE HISTORY */ |
62 |
|
|
/* */ |
63 |
|
|
/* DATE NAME DESCRIPTION */ |
64 |
|
|
/* */ |
65 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
66 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
67 |
|
|
/* resulting in version 6.1 */ |
68 |
|
|
/* */ |
69 |
|
|
/**************************************************************************/ |
70 |
|
715 |
GX_BOOL _gx_widget_transparent_pixelmap_detect(GX_WIDGET *widget, GX_RESOURCE_ID pixelmap_id) |
71 |
|
|
{ |
72 |
|
|
GX_PIXELMAP *map; |
73 |
|
|
GX_CANVAS *canvas; |
74 |
|
|
GX_DISPLAY *display; |
75 |
|
|
|
76 |
✓✓ |
715 |
if (widget -> gx_widget_status & GX_STATUS_VISIBLE) |
77 |
|
|
{ |
78 |
|
712 |
_gx_widget_canvas_get(widget, &canvas); |
79 |
|
|
|
80 |
✓✓ |
712 |
if (canvas) |
81 |
|
|
{ |
82 |
|
709 |
display = canvas -> gx_canvas_display; |
83 |
|
|
|
84 |
✓✓ |
709 |
if (pixelmap_id < display -> gx_display_pixelmap_table_size) |
85 |
|
|
{ |
86 |
|
707 |
map = display -> gx_display_pixelmap_table[pixelmap_id]; |
87 |
|
|
|
88 |
✓✓ |
707 |
if (map) |
89 |
|
|
{ |
90 |
✓✓ |
704 |
if (map -> gx_pixelmap_flags & (GX_PIXELMAP_TRANSPARENT | GX_PIXELMAP_ALPHA)) |
91 |
|
|
{ |
92 |
|
677 |
return GX_TRUE; |
93 |
|
|
} |
94 |
|
|
} |
95 |
|
|
} |
96 |
|
|
} |
97 |
|
|
} |
98 |
|
38 |
return GX_FALSE; |
99 |
|
|
} |
100 |
|
|
|