GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: gx_multi_line_text_input_right_arrow.c Lines: 40 40 100.0 %
Date: 2024-12-05 08:52:37 Branches: 14 14 100.0 %

Line Branch Exec Source
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
/**   Multi Line Text Input Management (Multi 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_system.h"
28
#include "gx_window.h"
29
#include "gx_scrollbar.h"
30
#include "gx_multi_line_text_input.h"
31
#include "gx_multi_line_text_view.h"
32
#include "gx_text_input_cursor.h"
33
#include "gx_utility.h"
34
35
/**************************************************************************/
36
/*                                                                        */
37
/*  FUNCTION                                               RELEASE        */
38
/*                                                                        */
39
/*    _gx_multi_line_text_input_right_arrow               PORTABLE C      */
40
/*                                                           6.1          */
41
/*  AUTHOR                                                                */
42
/*                                                                        */
43
/*    Kenneth Maxwell, Microsoft Corporation                              */
44
/*                                                                        */
45
/*  DESCRIPTION                                                           */
46
/*                                                                        */
47
/*    This function move the cursor to right by one pixel.                */
48
/*                                                                        */
49
/*  INPUT                                                                 */
50
/*                                                                        */
51
/*    text_input                            Multi line text input         */
52
/*                                            control block               */
53
/*                                                                        */
54
/*  OUTPUT                                                                */
55
/*                                                                        */
56
/*    None                                                                */
57
/*                                                                        */
58
/*  CALLS                                                                 */
59
/*                                                                        */
60
/*    _gx_text_input_cursor_dirty_rectangle_get                           */
61
/*                                          Get cursor rectangle          */
62
/*    _gx_multi_line_text_input_cursor_pos_update                         */
63
/*                                          Calculate cursor position     */
64
/*                                            according to insert index   */
65
/*    _gx_system_dirty_partial_add          Add one dirty area to         */
66
/*                                            dirty list                  */
67
/*    _gx_system_dirty_mark                 Mark widget area dirty        */
68
/*    _gx_utility_utf8_string_character_get Parses utf8 string to         */
69
/*                                            multi-byte glyph            */
70
/*    _gx_utility_string_length_check       Test string length            */
71
/*                                                                        */
72
/*  CALLED BY                                                             */
73
/*                                                                        */
74
/*    _gx_multi_line_text_input_keydown_process                           */
75
/*                                                                        */
76
/*  RELEASE HISTORY                                                       */
77
/*                                                                        */
78
/*    DATE              NAME                      DESCRIPTION             */
79
/*                                                                        */
80
/*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
81
/*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
82
/*                                            resulting in version 6.1    */
83
/*                                                                        */
84
/**************************************************************************/
85
457
UINT _gx_multi_line_text_input_right_arrow(GX_MULTI_LINE_TEXT_INPUT *text_input)
86
{
87
457
GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_multi_line_text_input_cursor_instance;
88
UINT                  index;
89
GX_RECTANGLE          cur_rect;
90
INT                   shift;
91
457
UINT                  glyph_len = 1;
92
GX_STRING            *view_text;
93
457
UINT                  start_mark = text_input -> gx_multi_line_text_input_start_mark;
94
457
UINT                  end_mark = text_input -> gx_multi_line_text_input_end_mark;
95
GX_POINT              end_pos;
96
#ifdef GX_UTF8_SUPPORT
97
GX_STRING             string;
98
#endif
99
100
457
    if (start_mark != end_mark)
101
    {
102
144
        end_pos = cursor_ptr -> gx_text_input_cursor_pos;
103
104
144
        if (start_mark < end_mark)
105
        {
106
76
            _gx_multi_line_text_input_cursor_visible(text_input);
107
108
            /* Get highlight area. */
109
76
            _gx_multi_line_text_input_highlight_rectangle_get(text_input, &cur_rect);
110
        }
111
        else
112
        {
113
68
            text_input -> gx_multi_line_text_input_text_insert_position = start_mark;
114
115
68
            shift = text_input -> gx_multi_line_text_view_text_scroll_shift;
116
117
            /* Recalculate cursor position according to cursor insert position. */
118
68
            _gx_multi_line_text_input_cursor_pos_update(text_input, GX_TRUE);
119
120
            /* Dirty mark. */
121
68
            if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift)
122
            {
123
44
                _gx_multi_line_text_input_text_rectangle_get(text_input, cursor_ptr -> gx_text_input_cursor_pos, end_pos, &cur_rect);
124
            }
125
            else
126
            {
127
24
                cur_rect = text_input -> gx_widget_size;
128
            }
129
        }
130
131
144
        text_input -> gx_multi_line_text_input_start_mark = 0;
132
144
        text_input -> gx_multi_line_text_input_end_mark = 0;
133
134
144
        _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
135
136
        /* Mark cursor area as dirty. */
137
144
        _gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
138
144
        _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
139
    }
140
    else
141
    {
142
313
        view_text = &text_input -> gx_multi_line_text_view_text;
143
313
        index = text_input -> gx_multi_line_text_input_text_insert_position;
144
313
        if (index < view_text -> gx_string_length)
145
        {
146
309
            if ((view_text -> gx_string_ptr[index] == GX_KEY_CARRIAGE_RETURN) ||
147
254
                (view_text -> gx_string_ptr[index] == GX_KEY_LINE_FEED))
148
            {
149
60
                glyph_len = text_input -> gx_multi_line_text_input_new_line_character_size;
150
            }
151
#ifdef GX_UTF8_SUPPORT
152
            else
153
            {
154
                /* Calculate glygh length. */
155
249
                string.gx_string_ptr = view_text -> gx_string_ptr + index;
156
249
                string.gx_string_length = view_text -> gx_string_length - index;
157
249
                _gx_utility_utf8_string_character_get(&string, GX_NULL, &glyph_len);
158
            }
159
#endif
160
161
            /* Move the cursor position in the input buffer forward by one character. */
162
309
            text_input -> gx_multi_line_text_input_text_insert_position += glyph_len;
163
164
            /* Record scroll shift before recalculate cursor position. */
165
309
            _gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
166
309
            shift = text_input -> gx_multi_line_text_view_text_scroll_shift;
167
168
            /* Recalculate cursor position according to cursor insert position. */
169
309
            _gx_multi_line_text_input_cursor_pos_update(text_input, GX_TRUE);
170
171
            /* Dirty mark. */
172
309
            if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift)
173
            {
174
307
                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
175
307
                _gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
176
307
                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
177
            }
178
            else
179
            {
180
2
                _gx_system_dirty_mark((GX_WIDGET *)text_input);
181
            }
182
        }
183
    }
184
457
    return GX_SUCCESS;
185
}
186