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 #include "gx_widget.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _gx_system_root_view_add PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* Kenneth Maxwell, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* Adds a view to a root window, checking to detect if the view is */
46 /* obscured by a child window */
47 /* */
48 /* INPUT */
49 /* */
50 /* root Root window that we want to */
51 /* add the view to. */
52 /* inrect Rectangle defining the view */
53 /* that we want to add. */
54 /* */
55 /* OUTPUT */
56 /* */
57 /* view is added to root window or split into smaller views. */
58 /* */
59 /* CALLS */
60 /* */
61 /* _gx_system_view_split Split a view */
62 /* _gx_system_view_add Add view to window */
63 /* _gx_utility_rectangle_overlap_detect Detect overlap of rectangles */
64 /* */
65 /* CALLED BY */
66 /* */
67 /* GUIX Internal Code */
68 /* */
69 /* RELEASE HISTORY */
70 /* */
71 /* DATE NAME DESCRIPTION */
72 /* */
73 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
74 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
75 /* resulting in version 6.1 */
76 /* */
77 /**************************************************************************/
_gx_system_root_view_add(GX_WINDOW_ROOT * root,GX_RECTANGLE * inrect)78 VOID _gx_system_root_view_add(GX_WINDOW_ROOT *root, GX_RECTANGLE *inrect)
79 {
80 GX_RECTANGLE overlap;
81 GX_WINDOW *win = GX_NULL;
82 GX_WIDGET *widget;
83
84 /* pick up pointer to frontmost child window */
85 widget = root -> gx_widget_last_child;
86
87 while (widget)
88 {
89 if (widget -> gx_widget_type >= GX_TYPE_WINDOW &&
90 (widget -> gx_widget_status & GX_STATUS_VISIBLE))
91 {
92 /* if this window is non-transparent, give it views */
93 if (!(widget -> gx_widget_status & GX_STATUS_TRANSPARENT))
94 {
95 win = (GX_WINDOW *)widget;
96 if (_gx_utility_rectangle_overlap_detect(inrect, &win -> gx_widget_size, &overlap))
97 {
98 /* split the viewport into pieces */
99 _gx_system_view_split(win, root, inrect);
100
101 /* add the overlap to the over window: */
102 _gx_system_view_add(win, &overlap);
103 return;
104 }
105 }
106 }
107 widget = widget -> gx_widget_previous;
108 }
109
110 /* if we didn't split the view, then add it here */
111 _gx_system_view_add((GX_WINDOW *)root, inrect);
112 }
113
114
