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 /** Widget Management (Widget) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_widget.h"
28 #include "gx_system.h"
29 #include "gx_window.h"
30
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_widget_style_set PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function updates the style of the specified widget. */
45 /* */
46 /* INPUT */
47 /* */
48 /* widget Widget control block */
49 /* style New style */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* status Completion status */
54 /* */
55 /* CALLS */
56 /* */
57 /* _gx_window_view_update_detect Detect if views changed */
58 /* _gx_system_dirty_mark Mark the widget as dirty */
59 /* */
60 /* CALLED BY */
61 /* */
62 /* GUIX Internal Code */
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_widget_style_set(GX_WIDGET * widget,ULONG style)73 UINT _gx_widget_style_set(GX_WIDGET *widget, ULONG style)
74 {
75 GX_WINDOW *window;
76 GX_EVENT my_event;
77 ULONG old_style = widget -> gx_widget_style;
78
79 /* Update the widget style. */
80 widget -> gx_widget_style = style;
81
82 if (style & GX_STYLE_TRANSPARENT)
83 {
84 if (!(widget -> gx_widget_status & GX_STATUS_TRANSPARENT))
85 {
86 /* If we are changing a window transparency and the window is visible,
87 we have to check to see if viewports need to be updated
88 */
89 if (widget -> gx_widget_type >= GX_TYPE_WINDOW &&
90 widget -> gx_widget_status & GX_STATUS_VISIBLE)
91 {
92 window = (GX_WINDOW *)widget;
93 _gx_window_view_update_detect(window);
94 }
95 widget -> gx_widget_status |= GX_STATUS_TRANSPARENT;
96 }
97 }
98 else
99 {
100 if (widget -> gx_widget_status & GX_STATUS_TRANSPARENT)
101 {
102 /* If we are changing a window transparency and the window is visible,
103 we have to check to see if viewports need to be updated
104 */
105 if (widget -> gx_widget_type >= GX_TYPE_WINDOW &&
106 widget -> gx_widget_status & GX_STATUS_VISIBLE)
107 {
108 window = (GX_WINDOW *)widget;
109 _gx_window_view_update_detect(window);
110 }
111 widget -> gx_widget_status &= ~GX_STATUS_TRANSPARENT;
112 }
113 }
114
115 if (widget -> gx_widget_style & GX_STYLE_ENABLED)
116 {
117 _gx_widget_status_add(widget, GX_STATUS_SELECTABLE);
118 }
119 else
120 {
121 _gx_widget_status_remove(widget, GX_STATUS_SELECTABLE);
122 }
123
124 if (widget -> gx_widget_status & GX_STATUS_VISIBLE)
125 {
126 _gx_system_dirty_mark(widget);
127 }
128
129 /* notify widget of style modification */
130 memset(&my_event, 0, sizeof(GX_EVENT));
131 my_event.gx_event_payload.gx_event_ulongdata = old_style;
132 my_event.gx_event_type = GX_EVENT_STYLE_CHANGED;
133 my_event.gx_event_target = widget;
134 _gx_system_event_fold(&my_event);
135
136 return(GX_SUCCESS);
137 }
138
139
