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 Button Management (Button) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_widget.h"
28 #include "gx_button.h"
29 #include "gx_system.h"
30 #include "gx_utility.h"
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gx_multi_line_text_button_line_pointers_set PORTABLE C */
37 /* 6.1.10 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function creates a multi-line text button, which is a special */
45 /* type of button (widget). */
46 /* */
47 /* INPUT */
48 /* */
49 /* button Button control block */
50 /* name Name of button */
51 /* parent Parent widget control block */
52 /* text_id text resource id */
53 /* style Style of button */
54 /* size Button size */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* status Completion status */
59 /* */
60 /* CALLS */
61 /* */
62 /* _gx_system_string_get */
63 /* */
64 /* CALLED BY */
65 /* */
66 /* Application 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 /* added line pointers set */
75 /* loigc for dynamic bidi text,*/
76 /* resulting in version 6.1 */
77 /* 01-31-2022 Ting Zhu Modified comment(s), */
78 /* updated with new bidi text */
79 /* reorder function call, */
80 /* resulting in version 6.1.10 */
81 /* */
82 /**************************************************************************/
_gx_multi_line_text_button_line_pointers_set(GX_MULTI_LINE_TEXT_BUTTON * button)83 VOID _gx_multi_line_text_button_line_pointers_set(GX_MULTI_LINE_TEXT_BUTTON *button)
84 {
85 INT line_index;
86 GX_STRING string;
87 GX_CONST GX_CHAR *text;
88
89 #if defined(GX_DYNAMIC_BIDI_TEXT_SUPPORT)
90 GX_BIDI_TEXT_INFO text_info;
91 GX_BIDI_RESOLVED_TEXT_INFO *next;
92 GX_CANVAS *canvas;
93 GX_DISPLAY *display;
94 #endif
95
96
97 button -> gx_multi_line_text_button_line_count = 1;
98
99 for (line_index = 0; line_index < GX_MULTI_LINE_TEXT_BUTTON_MAX_LINES; line_index++)
100 {
101 button -> gx_multi_line_text_button_lines[line_index].gx_string_ptr = GX_NULL;
102 button -> gx_multi_line_text_button_lines[line_index].gx_string_length = 0;
103 }
104 line_index = 0;
105
106 if (button -> gx_text_button_text_id)
107 {
108 _gx_widget_string_get_ext((GX_WIDGET *)button, button -> gx_text_button_text_id, &string);
109 }
110 else
111 {
112 _gx_system_private_string_get(&button -> gx_text_button_string, &string, button -> gx_widget_style);
113 }
114
115 text = string.gx_string_ptr;
116
117 if (!text)
118 {
119 return;
120 }
121
122 #if defined(GX_DYNAMIC_BIDI_TEXT_SUPPORT)
123 if (_gx_system_bidi_text_enabled)
124 {
125 if (!button -> gx_text_button_bidi_resolved_text_info)
126 {
127 text_info.gx_bidi_text_info_display_width = -1;
128 text_info.gx_bidi_text_info_font = GX_NULL;
129 text_info.gx_bidi_text_info_text = string;
130 GX_UTILITY_TEXT_DIRECTION_GET(text_info.gx_bidi_text_info_direction, button, canvas, display);
131 _gx_utility_bidi_paragraph_reorder_ext(&text_info, &button -> gx_text_button_bidi_resolved_text_info);
132 }
133
134 next = button -> gx_text_button_bidi_resolved_text_info;
135
136 while (next)
137 {
138 button -> gx_multi_line_text_button_lines[line_index++] = *next -> gx_bidi_resolved_text_info_text;
139 next = next -> gx_bidi_resolved_text_info_next;
140
141 if (line_index >= GX_MULTI_LINE_TEXT_BUTTON_MAX_LINES)
142 {
143 break;
144 }
145 }
146
147 if (line_index)
148 {
149 button -> gx_multi_line_text_button_line_count = line_index;
150 }
151 }
152 else
153 {
154 #endif
155 while (*text)
156 {
157 if ((*text == GX_KEY_CARRIAGE_RETURN) || (*text == GX_KEY_LINE_FEED))
158 {
159 if ((*text == GX_KEY_CARRIAGE_RETURN) && (*(text + 1) == GX_KEY_LINE_FEED))
160 {
161 text += 2;
162 }
163 else
164 {
165 text++;
166 }
167 line_index++;
168
169 if (line_index >= GX_MULTI_LINE_TEXT_BUTTON_MAX_LINES)
170 {
171 break;
172 }
173 else
174 {
175 button -> gx_multi_line_text_button_line_count++;
176 }
177 }
178 else
179 {
180 if (button -> gx_multi_line_text_button_lines[line_index].gx_string_ptr == GX_NULL)
181 {
182 button -> gx_multi_line_text_button_lines[line_index].gx_string_ptr = text;
183 }
184 button -> gx_multi_line_text_button_lines[line_index].gx_string_length++;
185 text++;
186 }
187 }
188 #if defined(GX_DYNAMIC_BIDI_TEXT_SUPPORT)
189 }
190 #endif
191 }
192
193
