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 /** Scroll Wheel Management (Generic Scroll Wheel) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_window.h"
28 #include "gx_scroll_wheel.h"
29 #include "gx_widget.h"
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _gx_generic_scroll_wheel_create PORTABLE C */
36 /* 6.1.7 */
37 /* AUTHOR */
38 /* */
39 /* Ting Zhu, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function creates a generic scroll wheel selector widget. */
44 /* */
45 /* INPUT */
46 /* */
47 /* wheel Scroll wheel control block */
48 /* name Name of widget */
49 /* parent Parent widget control block */
50 /* total_rows Total rows of the scroll wheel*/
51 /* callback Callback function to create a */
52 /* widget row */
53 /* style Style of widget */
54 /* id Application-defined ID of the */
55 /* the widget */
56 /* size Widget size */
57 /* */
58 /* OUTPUT */
59 /* */
60 /* status Completion status */
61 /* */
62 /* CALLS */
63 /* */
64 /* _gx_scroll_wheel_create Create a scroll wheel widget */
65 /* _gx_widget_link Link a widget to its parent */
66 /* */
67 /* CALLED BY */
68 /* */
69 /* Application Code */
70 /* GUIX Internal Code */
71 /* */
72 /* RELEASE HISTORY */
73 /* */
74 /* DATE NAME DESCRIPTION */
75 /* */
76 /* 06-02-2021 Ting Zhu Initial Version 6.1.7 */
77 /* */
78 /**************************************************************************/
79
_gx_generic_scroll_wheel_create(GX_GENERIC_SCROLL_WHEEL * wheel,GX_CONST GX_CHAR * name,GX_WIDGET * parent,INT total_rows,VOID (* callback)(GX_GENERIC_SCROLL_WHEEL *,GX_WIDGET *,INT),ULONG style,USHORT id,GX_CONST GX_RECTANGLE * size)80 UINT _gx_generic_scroll_wheel_create(GX_GENERIC_SCROLL_WHEEL *wheel,
81 GX_CONST GX_CHAR *name,
82 GX_WIDGET *parent,
83 INT total_rows,
84 VOID (*callback)(GX_GENERIC_SCROLL_WHEEL *, GX_WIDGET *, INT),
85 ULONG style,
86 USHORT id,
87 GX_CONST GX_RECTANGLE *size)
88 {
89
90 /* Call default widget create. */
91 _gx_scroll_wheel_create((GX_SCROLL_WHEEL *)wheel, name, parent, total_rows, style, id, size);
92
93 wheel -> gx_widget_type = GX_TYPE_GENERIC_SCROLL_WHEEL;
94 wheel -> gx_generic_scroll_wheel_top_index = 0;
95 wheel -> gx_generic_scroll_wheel_callback = callback;
96 wheel -> gx_generic_scroll_wheel_child_count = 0;
97 wheel -> gx_generic_scroll_wheel_visible_rows = 0;
98 wheel -> gx_widget_event_process_function = (UINT (*)(GX_WIDGET *, GX_EVENT *))_gx_generic_scroll_wheel_event_process;
99 wheel -> gx_widget_draw_function = (VOID (*)(GX_WIDGET *))_gx_generic_scroll_wheel_draw;
100 wheel -> gx_scroll_wheel_scroll = (UINT(*)(GX_SCROLL_WHEEL*, GX_VALUE))_gx_generic_scroll_wheel_scroll;
101 wheel -> gx_scroll_wheel_wrap_style_check = (GX_BOOL(*)(GX_SCROLL_WHEEL*))_gx_generic_scroll_wheel_wrap_style_check;
102
103 /* Determine if a parent widget was provided. */
104 if (parent)
105 {
106 _gx_widget_link((GX_WIDGET *)parent, (GX_WIDGET *)wheel);
107 }
108
109 return GX_SUCCESS;
110 }
111
112
