1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** GUIX Component */
16 /** */
17 /** Text Input Management (Single Line Text Input) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_multi_line_text_input.h"
28 #include "gx_system.h"
29 #include "gx_text_input_cursor.h"
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _gx_multi_line_text_input_text_select PORTABLE C */
36 /* 6.1 */
37 /* AUTHOR */
38 /* */
39 /* Kenneth Maxwell, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function highlighs text with specified start mark and end mark */
44 /* index. */
45 /* */
46 /* INPUT */
47 /* */
48 /* input Multi-line text input widget */
49 /* control block */
50 /* start_mark The index of the first */
51 /* highlight character. */
52 /* end_mark The index of the last */
53 /* highlight character */
54 /* */
55 /* OUTPUT */
56 /* */
57 /* None */
58 /* */
59 /* CALLS */
60 /* */
61 /* _gx_system_dirty_mark Mark widget as drity */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* Application Code */
66 /* GUIX Internal 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_multi_line_text_input_text_select(GX_MULTI_LINE_TEXT_INPUT * input,UINT start_index,UINT end_index)77 UINT _gx_multi_line_text_input_text_select(GX_MULTI_LINE_TEXT_INPUT *input, UINT start_index, UINT end_index)
78 {
79 GX_RECTANGLE dirty_rect;
80 UINT start_mark = input -> gx_multi_line_text_input_start_mark;
81 UINT end_mark = input -> gx_multi_line_text_input_end_mark;
82
83 if (start_index <= end_index)
84 {
85 input -> gx_multi_line_text_input_start_mark = start_index;
86 input -> gx_multi_line_text_input_end_mark = end_index + 1;
87 }
88 else
89 {
90 input -> gx_multi_line_text_input_start_mark = start_index + 1;
91 input -> gx_multi_line_text_input_end_mark = end_index;
92 }
93
94 if (input -> gx_widget_status & GX_STATUS_VISIBLE)
95 {
96 if (start_mark != end_mark)
97 {
98 _gx_multi_line_text_input_highlight_rectangle_get(input, &dirty_rect);
99
100 /* Mark highlight area as dirty. */
101 _gx_system_dirty_partial_add((GX_WIDGET *)input, &dirty_rect);
102 }
103 else
104 {
105 _gx_text_input_cursor_dirty_rectangle_get(&input -> gx_multi_line_text_input_cursor_instance, &dirty_rect);
106
107 /* Mark cursor area as dirty. */
108 _gx_system_dirty_partial_add((GX_WIDGET *)input, &dirty_rect);
109 }
110
111 start_mark = input -> gx_multi_line_text_input_start_mark;
112 end_mark = input -> gx_multi_line_text_input_end_mark;
113
114 if (input -> gx_multi_line_text_input_text_insert_position != end_mark)
115 {
116 input -> gx_multi_line_text_input_text_insert_position = end_mark;
117 _gx_multi_line_text_input_cursor_pos_update(input, GX_FALSE);
118 }
119
120 _gx_multi_line_text_input_highlight_rectangle_get(input, &dirty_rect);
121
122 /* Mark highlight area as dirty. */
123 _gx_system_dirty_partial_add((GX_WIDGET *)input, &dirty_rect);
124 }
125
126 return GX_SUCCESS;
127 }
128
129
