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 /** Scroll Management (Scroll) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_widget.h"
29 #include "gx_button.h"
30 #include "gx_scrollbar.h"
31 #include "gx_utility.h"
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _gx_scroll_thumb_create PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* Kenneth Maxwell, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function creates a bitmap prompt, which is a special type of */
46 /* widget. */
47 /* */
48 /* INPUT */
49 /* */
50 /* scroll_thumb Scroll thumb control block */
51 /* parent Pointer to parent scrollbar */
52 /* style Style of scroll bar */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* status Completion status */
57 /* */
58 /* CALLS */
59 /* */
60 /* _gx_button_create Create a button */
61 /* _gx_widget_status_remove Clear the widget status flag */
62 /* _gx_widget_link Link the widget to its parent */
63 /* */
64 /* CALLED BY */
65 /* */
66 /* Application Code */
67 /* */
68 /* RELEASE HISTORY */
69 /* */
70 /* DATE NAME DESCRIPTION */
71 /* */
72 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
73 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
74 /* resulting in version 6.1 */
75 /* */
76 /**************************************************************************/
_gx_scroll_thumb_create(GX_SCROLL_THUMB * scroll_thumb,GX_SCROLLBAR * parent,ULONG style)77 UINT _gx_scroll_thumb_create(GX_SCROLL_THUMB *scroll_thumb, GX_SCROLLBAR *parent,
78 ULONG style)
79 {
80 GX_RECTANGLE size;
81
82 if (parent)
83 {
84 size = parent -> gx_widget_size;
85 }
86 else
87 {
88 size.gx_rectangle_bottom = size.gx_rectangle_left = size.gx_rectangle_right = size.gx_rectangle_top = 0;
89 }
90
91 /* Clear the scroll control block. */
92 _gx_button_create((GX_BUTTON *)scroll_thumb, GX_NULL, GX_NULL, style, GX_ID_SCROLL_THUMB, &size);
93 _gx_widget_status_remove((GX_WIDGET *)scroll_thumb, GX_STATUS_ACCEPTS_FOCUS);
94
95 scroll_thumb -> gx_widget_draw_function = (VOID (*)(struct GX_WIDGET_STRUCT *))_gx_scroll_thumb_draw;
96 scroll_thumb -> gx_widget_event_process_function = (UINT (*)(GX_WIDGET *, GX_EVENT *))_gx_scroll_thumb_event_process;
97 scroll_thumb -> gx_widget_normal_fill_color = GX_COLOR_ID_SCROLL_BUTTON;
98 scroll_thumb -> gx_widget_selected_fill_color = GX_COLOR_ID_SCROLL_BUTTON;
99 scroll_thumb -> gx_scroll_thumb_border_color = GX_COLOR_ID_SCROLL_BUTTON;
100
101 /* Determine if a parent widget was provided. */
102 if (parent)
103 {
104 scroll_thumb -> gx_scroll_thumb_border_color = parent -> gx_scrollbar_appearance.gx_scroll_thumb_border_color;
105 scroll_thumb -> gx_widget_normal_fill_color = parent -> gx_scrollbar_appearance.gx_scroll_thumb_color;
106 scroll_thumb -> gx_widget_selected_fill_color = parent -> gx_scrollbar_appearance.gx_scroll_thumb_color;
107 scroll_thumb -> gx_scroll_thumb_pixelmap = parent -> gx_scrollbar_appearance.gx_scroll_thumb_pixelmap;
108
109 _gx_widget_link((GX_WIDGET *)parent, (GX_WIDGET *)scroll_thumb);
110 }
111 return GX_SUCCESS;
112 }
113
114
