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 /** System Management (System) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_system.h"
29 #include "gx_utility.h"
30
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_system_view_split PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This splits a rectangle into over and under views */
45 /* */
46 /* INPUT */
47 /* */
48 /* over Pointer to window on top */
49 /* root Pointer to root window */
50 /* original Rectangle to split into */
51 /* smaller chunks */
52 /* */
53 /* OUTPUT */
54 /* */
55 /* None */
56 /* */
57 /* CALLS */
58 /* */
59 /* gx_system_root_view_add Add viewport to root window */
60 /* */
61 /* CALLED BY */
62 /* */
63 /* _gx_system_root_view_add Add view to a root window */
64 /* */
65 /* RELEASE HISTORY */
66 /* */
67 /* DATE NAME DESCRIPTION */
68 /* */
69 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
70 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
71 /* resulting in version 6.1 */
72 /* */
73 /**************************************************************************/
74
_gx_system_view_split(GX_WINDOW * over,GX_WINDOW_ROOT * root,GX_RECTANGLE * original)75 VOID _gx_system_view_split(GX_WINDOW *over, GX_WINDOW_ROOT *root, GX_RECTANGLE *original)
76 {
77 GX_RECTANGLE split;
78 GX_RECTANGLE oversize = over -> gx_widget_size;
79
80 /* check to see if any area on top is exposed */
81 if (oversize.gx_rectangle_top > original -> gx_rectangle_top)
82 {
83 split.gx_rectangle_left = original -> gx_rectangle_left;
84 split.gx_rectangle_right = original -> gx_rectangle_right;
85 split.gx_rectangle_top = original -> gx_rectangle_top;
86 split.gx_rectangle_bottom = (GX_VALUE)(oversize.gx_rectangle_top - 1);
87
88 /* try to add this piece to the 'under' window's viewports */
89 _gx_system_root_view_add(root, &split);
90 }
91
92 /* check to see if any area on bottom is exposed */
93 if (oversize.gx_rectangle_bottom < original -> gx_rectangle_bottom)
94 {
95 split.gx_rectangle_left = original -> gx_rectangle_left;
96 split.gx_rectangle_right = original -> gx_rectangle_right;
97 split.gx_rectangle_top = (GX_VALUE)(oversize.gx_rectangle_bottom + 1);
98 split.gx_rectangle_bottom = original -> gx_rectangle_bottom;
99
100 /* try to add this piece to the 'under' window's viewports */
101 _gx_system_root_view_add(root, &split);
102 }
103
104 /* check to see if any area on left is exposed */
105 if (oversize.gx_rectangle_left > original -> gx_rectangle_left)
106 {
107 split.gx_rectangle_left = original -> gx_rectangle_left;
108 split.gx_rectangle_right = (GX_VALUE)(oversize.gx_rectangle_left - 1);
109
110 if (original -> gx_rectangle_top > oversize.gx_rectangle_top)
111 {
112 split.gx_rectangle_top = original -> gx_rectangle_top;
113 }
114 else
115 {
116 split.gx_rectangle_top = oversize.gx_rectangle_top;
117 }
118
119 if (original -> gx_rectangle_bottom < oversize.gx_rectangle_bottom)
120 {
121 split.gx_rectangle_bottom = original -> gx_rectangle_bottom;
122 }
123 else
124 {
125 split.gx_rectangle_bottom = oversize.gx_rectangle_bottom;
126 }
127
128 /* try to add this piece to the 'under' window's viewports */
129 _gx_system_root_view_add(root, &split);
130 }
131
132 /* check to see if any area on right is exposed */
133 if (oversize.gx_rectangle_right < original -> gx_rectangle_right)
134 {
135 split.gx_rectangle_left = (GX_VALUE)(oversize.gx_rectangle_right + 1);
136 split.gx_rectangle_right = original -> gx_rectangle_right;
137
138 if (original -> gx_rectangle_top > oversize.gx_rectangle_top)
139 {
140 split.gx_rectangle_top = original -> gx_rectangle_top;
141 }
142 else
143 {
144 split.gx_rectangle_top = oversize.gx_rectangle_top;
145 }
146
147 if (original -> gx_rectangle_bottom < oversize.gx_rectangle_bottom)
148 {
149 split.gx_rectangle_bottom = original -> gx_rectangle_bottom;
150 }
151 else
152 {
153 split.gx_rectangle_bottom = oversize.gx_rectangle_bottom;
154 }
155 /* try to add this piece to the 'under' window's viewports */
156 _gx_system_root_view_add(root, &split);
157 }
158 }
159
160
