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 /** Text Input Management (Single Line Text Input) */
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_single_line_text_input.h"
30 #include "gx_text_input_cursor.h"
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_single_line_text_input_text_select PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function highlighs text with specified start mark and end mark */
45 /* index. */
46 /* */
47 /* INPUT */
48 /* */
49 /* text_input Single-line text input widget */
50 /* control block */
51 /* start_mark The index of the first */
52 /* highlight character. */
53 /* end_mark The index of the last */
54 /* highlight character */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* None */
59 /* */
60 /* CALLS */
61 /* */
62 /* _gx_system_dirty_mark Mark widget as drity */
63 /* */
64 /* CALLED BY */
65 /* */
66 /* Application Code */
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_single_line_text_input_text_select(GX_SINGLE_LINE_TEXT_INPUT * input,UINT start_index,UINT end_index)78 UINT _gx_single_line_text_input_text_select(GX_SINGLE_LINE_TEXT_INPUT *input, UINT start_index, UINT end_index)
79 {
80 GX_RECTANGLE dirty_rect;
81 UINT start_mark = input -> gx_single_line_text_input_start_mark;
82 UINT end_mark = input -> gx_single_line_text_input_end_mark;
83
84 if (start_index <= end_index)
85 {
86 input -> gx_single_line_text_input_start_mark = start_index;
87 input -> gx_single_line_text_input_end_mark = end_index + 1;
88 }
89 else
90 {
91 input -> gx_single_line_text_input_start_mark = start_index + 1;
92 input -> gx_single_line_text_input_end_mark = end_index;
93 }
94
95 if (input -> gx_widget_status & GX_STATUS_VISIBLE)
96 {
97 if (start_mark != end_mark)
98 {
99 _gx_single_line_text_input_text_rectangle_get(input, (INT)(start_mark - end_mark), &dirty_rect);
100
101 /* Mark old highlight area as dirty. */
102 _gx_system_dirty_partial_add((GX_WIDGET *)input, &dirty_rect);
103 }
104 else
105 {
106 _gx_text_input_cursor_dirty_rectangle_get(&input->gx_single_line_text_input_cursor_instance, &dirty_rect);
107
108 /* Mark cursor area as dirty. */
109 _gx_system_dirty_partial_add((GX_WIDGET *)input, &dirty_rect);
110 }
111
112 start_mark = input -> gx_single_line_text_input_start_mark;
113 end_mark = input -> gx_single_line_text_input_end_mark;
114
115 if (input -> gx_single_line_text_input_insert_pos != end_mark)
116 {
117 input -> gx_single_line_text_input_insert_pos = end_mark;
118 _gx_single_line_text_input_position_update(input);
119 }
120
121 _gx_single_line_text_input_text_rectangle_get(input, (INT)(start_mark - end_mark), &dirty_rect);
122
123 /* Mark highlight text area as dirty. */
124 _gx_system_dirty_partial_add((GX_WIDGET *)input, &dirty_rect);
125 }
126
127 return GX_SUCCESS;
128 }
129
130
