1 |
|
|
/*************************************************************************** |
2 |
|
|
* Copyright (c) 2024 Microsoft Corporation |
3 |
|
|
* Copyright (c) 2026-present Eclipse ThreadX contributors |
4 |
|
|
* |
5 |
|
|
* This program and the accompanying materials are made available under the |
6 |
|
|
* terms of the MIT License which is available at |
7 |
|
|
* https://opensource.org/licenses/MIT. |
8 |
|
|
* |
9 |
|
|
* SPDX-License-Identifier: MIT |
10 |
|
|
**************************************************************************/ |
11 |
|
|
|
12 |
|
|
|
13 |
|
|
/**************************************************************************/ |
14 |
|
|
/**************************************************************************/ |
15 |
|
|
/** */ |
16 |
|
|
/** GUIX Component */ |
17 |
|
|
/** */ |
18 |
|
|
/** Scrollbar Management (Scrollbar) */ |
19 |
|
|
/** */ |
20 |
|
|
/**************************************************************************/ |
21 |
|
|
|
22 |
|
|
#define GX_SOURCE_CODE |
23 |
|
|
|
24 |
|
|
/* Include necessary system files. */ |
25 |
|
|
|
26 |
|
|
#include "gx_api.h" |
27 |
|
|
#include "gx_system.h" |
28 |
|
|
#include "gx_display.h" |
29 |
|
|
#include "gx_context.h" |
30 |
|
|
#include "gx_widget.h" |
31 |
|
|
#include "gx_utility.h" |
32 |
|
|
#include "gx_scrollbar.h" |
33 |
|
|
|
34 |
|
|
/**************************************************************************/ |
35 |
|
|
/* */ |
36 |
|
|
/* FUNCTION RELEASE */ |
37 |
|
|
/* */ |
38 |
|
|
/* _gx_scrollbar_thumb_position_calculate PORTABLE C */ |
39 |
|
|
/* 6.1 */ |
40 |
|
|
/* AUTHOR */ |
41 |
|
|
/* */ |
42 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
43 |
|
|
/* */ |
44 |
|
|
/* DESCRIPTION */ |
45 |
|
|
/* */ |
46 |
|
|
/* Calculate and return the position of a GX_SCROLLBAR thumb button */ |
47 |
|
|
/* based scrollbar dimensions, current value, and visible range. */ |
48 |
|
|
/* */ |
49 |
|
|
/* */ |
50 |
|
|
/* INPUT */ |
51 |
|
|
/* */ |
52 |
|
|
/* scroll Widget control block */ |
53 |
|
|
/* */ |
54 |
|
|
/* OUTPUT */ |
55 |
|
|
/* */ |
56 |
|
|
/* None */ |
57 |
|
|
/* */ |
58 |
|
|
/* CALLS */ |
59 |
|
|
/* */ |
60 |
|
|
/* _gx_context_pixelmap_get Retrieve pixelmap image */ |
61 |
|
|
/* _gx_widget_resize Resize a widget */ |
62 |
|
|
/* */ |
63 |
|
|
/* CALLED BY */ |
64 |
|
|
/* */ |
65 |
|
|
/* Application Code */ |
66 |
|
|
/* GUIX Internal Code */ |
67 |
|
|
/* */ |
68 |
|
|
/**************************************************************************/ |
69 |
|
7701 |
VOID _gx_scrollbar_thumb_position_calculate(GX_SCROLLBAR *scroll) |
70 |
|
|
{ |
71 |
|
7701 |
INT thumb_length = 0; |
72 |
|
|
INT travelsize; |
73 |
|
|
INT range; |
74 |
|
|
INT space; |
75 |
|
|
INT thumb_width; |
76 |
|
|
INT scroll_width; |
77 |
|
|
|
78 |
|
|
GX_RECTANGLE thumbrect; |
79 |
|
|
ULONG style; |
80 |
|
7701 |
GX_PIXELMAP *thumb_pixelmap = NULL; |
81 |
|
|
|
82 |
|
|
/* pick up scrollbar style */ |
83 |
|
7701 |
style = scroll -> gx_widget_style; |
84 |
|
|
|
85 |
|
|
/* pick up the scroll width and thumb button width */ |
86 |
|
|
|
87 |
|
7701 |
thumb_width = scroll -> gx_scrollbar_appearance.gx_scroll_thumb_width; |
88 |
|
|
|
89 |
|
|
/* see if the thumb has a pixelmap */ |
90 |
✓✓ |
7701 |
if (scroll -> gx_scrollbar_appearance.gx_scroll_thumb_pixelmap) |
91 |
|
|
{ |
92 |
|
171 |
_gx_widget_pixelmap_get((GX_WIDGET *) scroll, scroll -> gx_scrollbar_appearance.gx_scroll_thumb_pixelmap, &thumb_pixelmap); |
93 |
|
|
} |
94 |
|
|
|
95 |
✓✓ |
7701 |
if (style & GX_SCROLLBAR_VERTICAL) |
96 |
|
|
{ |
97 |
|
5956 |
scroll_width = scroll -> gx_widget_size.gx_rectangle_right - scroll -> gx_widget_size.gx_rectangle_left + 1; |
98 |
|
|
|
99 |
|
5956 |
travelsize = (scroll -> gx_widget_size.gx_rectangle_bottom - |
100 |
|
5956 |
scroll -> gx_widget_size.gx_rectangle_top) + 1; |
101 |
|
|
} |
102 |
|
|
else |
103 |
|
|
{ |
104 |
|
1745 |
scroll_width = scroll -> gx_widget_size.gx_rectangle_bottom - scroll -> gx_widget_size.gx_rectangle_top + 1; |
105 |
|
|
|
106 |
|
1745 |
travelsize = (scroll -> gx_widget_size.gx_rectangle_right - |
107 |
|
1745 |
scroll -> gx_widget_size.gx_rectangle_left) + 1; |
108 |
|
|
} |
109 |
|
|
|
110 |
|
7701 |
travelsize -= scroll -> gx_scrollbar_appearance.gx_scroll_thumb_travel_max + |
111 |
|
7701 |
scroll -> gx_scrollbar_appearance.gx_scroll_thumb_travel_min; |
112 |
|
|
|
113 |
|
7701 |
range = scroll -> gx_scrollbar_info.gx_scroll_maximum - scroll -> gx_scrollbar_info.gx_scroll_minimum + 1; |
114 |
|
|
|
115 |
✓✓ |
7701 |
if (style & GX_SCROLLBAR_RELATIVE_THUMB) |
116 |
|
|
{ |
117 |
|
7508 |
if (scroll -> gx_scrollbar_info.gx_scroll_maximum != |
118 |
✓✓ |
7508 |
scroll -> gx_scrollbar_info.gx_scroll_minimum) |
119 |
|
|
{ |
120 |
|
7505 |
thumb_length = travelsize * scroll -> gx_scrollbar_info.gx_scroll_visible; |
121 |
✓✓ |
7505 |
if (range) |
122 |
|
|
{ |
123 |
|
7504 |
thumb_length /= range; |
124 |
|
|
} |
125 |
✓✓ |
7505 |
if (thumb_length < thumb_width) |
126 |
|
|
{ |
127 |
|
640 |
thumb_length = thumb_width; |
128 |
|
|
} |
129 |
|
|
} |
130 |
|
|
} |
131 |
|
|
else |
132 |
|
|
{ |
133 |
✓✓ |
193 |
if (thumb_pixelmap) |
134 |
|
|
{ |
135 |
✓✓ |
170 |
if (style & GX_SCROLLBAR_VERTICAL) |
136 |
|
|
{ |
137 |
|
58 |
thumb_length = thumb_pixelmap -> gx_pixelmap_height; |
138 |
|
58 |
thumb_width = thumb_pixelmap -> gx_pixelmap_width; |
139 |
|
|
} |
140 |
|
|
else |
141 |
|
|
{ |
142 |
|
112 |
thumb_length = thumb_pixelmap -> gx_pixelmap_width; |
143 |
|
112 |
thumb_width = thumb_pixelmap -> gx_pixelmap_height; |
144 |
|
|
} |
145 |
|
|
} |
146 |
|
|
else |
147 |
|
|
{ |
148 |
|
|
/* just a square thumb button */ |
149 |
|
23 |
thumb_length = thumb_width; |
150 |
|
|
} |
151 |
|
|
} |
152 |
|
7701 |
space = (travelsize - thumb_length); |
153 |
|
7701 |
space *= scroll -> gx_scrollbar_info.gx_scroll_value - scroll -> gx_scrollbar_info.gx_scroll_minimum; |
154 |
|
7701 |
range -= scroll -> gx_scrollbar_info.gx_scroll_visible; |
155 |
|
|
|
156 |
✓✓ |
7701 |
if (range) |
157 |
|
|
{ |
158 |
|
7191 |
space = (space + (range >> 1)) / range; |
159 |
|
|
} |
160 |
|
|
|
161 |
|
|
|
162 |
✓✓ |
7701 |
if((scroll -> gx_scrollbar_info.gx_scroll_value > scroll -> gx_scrollbar_info.gx_scroll_minimum) && |
163 |
✓✓ |
6239 |
(scroll -> gx_scrollbar_info.gx_scroll_value + scroll -> gx_scrollbar_info.gx_scroll_visible - 1 < scroll -> gx_scrollbar_info.gx_scroll_maximum)) |
164 |
|
|
{ |
165 |
✓✓ |
4633 |
if (space == 0) |
166 |
|
|
{ |
167 |
|
395 |
space = 1; |
168 |
|
|
} |
169 |
✓✓ |
4238 |
else if (space == (travelsize - thumb_length)) |
170 |
|
|
{ |
171 |
|
5 |
space -= 1; |
172 |
|
|
} |
173 |
|
|
} |
174 |
|
|
|
175 |
|
7701 |
thumbrect = scroll -> gx_widget_size; |
176 |
|
|
|
177 |
✓✓ |
7701 |
if (style & GX_SCROLLBAR_VERTICAL) |
178 |
|
|
{ |
179 |
|
5956 |
thumbrect.gx_rectangle_left = (GX_VALUE)(thumbrect.gx_rectangle_left + (scroll_width - thumb_width) / 2); |
180 |
|
5956 |
thumbrect.gx_rectangle_right = (GX_VALUE) (thumbrect.gx_rectangle_left + thumb_width - 1); |
181 |
|
5956 |
thumbrect.gx_rectangle_top = (GX_VALUE)(scroll -> gx_widget_size.gx_rectangle_top + |
182 |
|
5956 |
scroll -> gx_scrollbar_appearance.gx_scroll_thumb_travel_min + space); |
183 |
|
5956 |
thumbrect.gx_rectangle_bottom = (GX_VALUE)(thumbrect.gx_rectangle_top + thumb_length - 1); |
184 |
|
|
} |
185 |
|
|
else |
186 |
|
|
{ |
187 |
|
1745 |
thumbrect.gx_rectangle_top = (GX_VALUE)(thumbrect.gx_rectangle_top + (scroll_width - thumb_width) / 2); |
188 |
|
1745 |
thumbrect.gx_rectangle_bottom = (GX_VALUE)(thumbrect.gx_rectangle_top + thumb_width - 1); |
189 |
|
|
|
190 |
|
1745 |
thumbrect.gx_rectangle_left = (GX_VALUE)(scroll -> gx_widget_size.gx_rectangle_left + |
191 |
|
1745 |
scroll -> gx_scrollbar_appearance.gx_scroll_thumb_travel_min + space); |
192 |
|
1745 |
thumbrect.gx_rectangle_right = (GX_VALUE)(thumbrect.gx_rectangle_left + thumb_length - 1); |
193 |
|
|
} |
194 |
|
|
|
195 |
|
7701 |
_gx_widget_resize((GX_WIDGET *)&scroll -> gx_scrollbar_thumb, &thumbrect); |
196 |
|
7701 |
} |
197 |
|
|
|