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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_single_line_text_input_character_delete.c	Lines:	72	72	100.0 %
Date:	2026-03-06 19:21:09	Branches:	25	25	100.0 %


/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 * Copyright (c) 2026-present Eclipse ThreadX contributors
 *
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available at
 * https://opensource.org/licenses/MIT.
 *
 * SPDX-License-Identifier: MIT
 **************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** GUIX Component                                                        */
/**                                                                       */
/**   Text Input Management (Single Line Text Input)                      */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_system.h"
#include "gx_widget.h"
#include "gx_single_line_text_input.h"
#include "gx_utility.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_single_line_text_input_character_delete         PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This service deletes the character after the text input cursor      */
/*    position.                                                           */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    text_input                             Single line text input       */
/*                                            control blcok               */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    memmove                               Move a block of memory        */
/*    _gx_widget_border_width_get           Get widget border width       */
/*    _gx_widget_client_get                 Get widget client rectangle   */
/*    _gx_widget_font_get                   Get font by specified ID      */
/*    _gx_system_string_width_get           Get the width of a string     */
/*    _gx_system_dirty_partial_add          Mark the partial area of a    */
/*                                            widget as dirty             */
/*    _gx_utility_utf8_string_character_get Parse utf8 string to          */
/*                                            multi-byte glyph            */
/*    _gx_single_line_text_input_position_update                          */
/*                                          Update cursor position        */
/*                                            according to insert position*/
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*    GUIX Internal Code                                                  */
/*                                                                        */
/**************************************************************************/
UINT _gx_single_line_text_input_character_delete(GX_SINGLE_LINE_TEXT_INPUT *text_input)
{
GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance;
UINT                  insert_pos;
GX_CHAR              *string_buffer;
UINT                  string_size;
GX_VALUE              border_width;
GX_VALUE              text_width;
GX_RECTANGLE          client;
GX_RECTANGLE          dirty_area;
GX_FONT              *gx_font;
GX_VALUE              x_pos;
GX_VALUE              offset;
GX_VALUE              del_char_width;
UINT                  glyph_len = 1;

GX_STRING             string;

    if (text_input -> gx_single_line_text_input_end_mark > text_input -> gx_single_line_text_input_start_mark)
    {
        return _gx_single_line_text_input_backspace(text_input);
    }

    insert_pos = text_input -> gx_single_line_text_input_insert_pos;
    string_buffer = text_input -> gx_single_line_text_input_buffer;
    string_size = text_input -> gx_single_line_text_input_string_size;

    if (insert_pos < string_size)
    {
        _gx_widget_border_width_get((GX_WIDGET *)text_input, &border_width);
        _gx_widget_client_get((GX_WIDGET *)text_input, border_width, &client);

        if (text_input -> gx_single_line_text_input_start_mark != text_input -> gx_single_line_text_input_end_mark)
        {
            glyph_len = text_input -> gx_single_line_text_input_start_mark - text_input -> gx_single_line_text_input_end_mark;

            if (cursor_ptr -> gx_text_input_cursor_pos.gx_point_x <= client.gx_rectangle_left ||
                cursor_ptr -> gx_text_input_cursor_pos.gx_point_x >= client.gx_rectangle_right)
            {
                _gx_single_line_text_input_left_arrow(text_input);
            }
            text_input -> gx_single_line_text_input_start_mark = 0;
            text_input -> gx_single_line_text_input_end_mark = 0;
        }
#ifdef GX_UTF8_SUPPORT
        else
        {
            string.gx_string_ptr = string_buffer + insert_pos;
            string.gx_string_length = string_size - insert_pos;

            _gx_utility_utf8_string_character_get(&string, GX_NULL, &glyph_len);
        }
#endif
        dirty_area = client;

        _gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_prompt_font_id, &gx_font);

        /* Pick up text witth. */
        string.gx_string_ptr = string_buffer;
        string.gx_string_length = text_input -> gx_single_line_text_input_string_size;

        _gx_system_string_width_get_ext(gx_font, &string, &text_width);

        string.gx_string_ptr = string_buffer + insert_pos;
        string.gx_string_length = glyph_len;

        _gx_system_string_width_get_ext(gx_font, &string, &del_char_width);

        switch (text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK)
        {
        case GX_STYLE_TEXT_RIGHT:
            x_pos = (GX_VALUE)(client.gx_rectangle_right - 1);
            x_pos = (GX_VALUE)(x_pos - text_input -> gx_single_line_text_input_xoffset);

            if (x_pos + text_width > client.gx_rectangle_right - 1)
            {
                offset = (GX_VALUE)((x_pos + text_width - del_char_width) - (client.gx_rectangle_right - 1));

                if (offset < 0)
                {
                    text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset + offset);
                    cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - offset);
                }
            }
            else
            {
                text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset - del_char_width);
                cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x + del_char_width);

                dirty_area.gx_rectangle_right = cursor_ptr -> gx_text_input_cursor_pos.gx_point_x;
            }
            break;

        case GX_STYLE_TEXT_CENTER:
            x_pos = (GX_VALUE)(client.gx_rectangle_left + 1);
            x_pos = (GX_VALUE)(x_pos + ((client.gx_rectangle_right - client.gx_rectangle_left + 1) >> 1));
            x_pos = (GX_VALUE)(x_pos - text_input -> gx_single_line_text_input_xoffset);
            if (text_width <= (client.gx_rectangle_right - client.gx_rectangle_left + 1 - border_width))
            {
                dirty_area.gx_rectangle_left = (GX_VALUE)(x_pos - (cursor_ptr -> gx_text_input_cursor_width >> 1));
                dirty_area.gx_rectangle_right = (GX_VALUE)(x_pos + text_width + ((cursor_ptr -> gx_text_input_cursor_width + 1) >> 1) - 1);
            }
            /* Calculate the cursor position. */
            text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)((text_width - del_char_width + 1) >> 1);
            cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x +
                                                                           (((text_width + 1) >> 1) - text_input -> gx_single_line_text_input_xoffset));
            break;

        case GX_STYLE_TEXT_LEFT:
        default:
            x_pos = (GX_VALUE)(client.gx_rectangle_left + 1);
            x_pos = (GX_VALUE)(x_pos - text_input -> gx_single_line_text_input_xoffset);

            if (x_pos < client.gx_rectangle_left + 1)
            {
                offset = (GX_VALUE)((client.gx_rectangle_right - 1) - (x_pos + text_width - del_char_width));

                if (offset > 0)
                {
                    if (offset > (client.gx_rectangle_left + 1 - x_pos))
                    {
                        offset = (GX_VALUE)(client.gx_rectangle_left + 1 - x_pos);
                    }

                    text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset - offset);
                    cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x + offset);
                }
            }
            else
            {
                dirty_area.gx_rectangle_left = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - (cursor_ptr -> gx_text_input_cursor_width >> 1));
                dirty_area.gx_rectangle_right = (GX_VALUE)(x_pos + text_width + cursor_ptr -> gx_text_input_cursor_width - 1);
            }
            break;
        }


        /* Delete a character from the string buffer. */
        memmove(string_buffer + insert_pos, string_buffer + insert_pos + glyph_len, string_size - insert_pos - glyph_len);

        string_buffer[string_size - glyph_len] = '\0';
        text_input -> gx_single_line_text_input_string_size -= glyph_len;

        /* Mark text input be changed.  */
        text_input -> gx_single_line_text_input_was_modified = GX_TRUE;

        _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &dirty_area);
    }

    return GX_SUCCESS;
}



Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/***************************************************************************
2			* Copyright (c) 2024 Microsoft Corporation
3			* Copyright (c) 2026-present Eclipse ThreadX contributors
4			*
5			* This program and the accompanying materials are made available under the
6			* terms of the MIT License which is available at
7			* https://opensource.org/licenses/MIT.
8			*
9			* SPDX-License-Identifier: MIT
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_widget.h"
30			#include "gx_single_line_text_input.h"
31			#include "gx_utility.h"
32
33			/**************************************************************************/
34			/* */
35			/* FUNCTION RELEASE */
36			/* */
37			/* _gx_single_line_text_input_character_delete PORTABLE C */
38			/* 6.1 */
39			/* AUTHOR */
40			/* */
41			/* Kenneth Maxwell, Microsoft Corporation */
42			/* */
43			/* DESCRIPTION */
44			/* */
45			/* This service deletes the character after the text input cursor */
46			/* position. */
47			/* */
48			/* INPUT */
49			/* */
50			/* text_input Single line text input */
51			/* control blcok */
52			/* */
53			/* OUTPUT */
54			/* */
55			/* None */
56			/* */
57			/* CALLS */
58			/* */
59			/* memmove Move a block of memory */
60			/* _gx_widget_border_width_get Get widget border width */
61			/* _gx_widget_client_get Get widget client rectangle */
62			/* _gx_widget_font_get Get font by specified ID */
63			/* _gx_system_string_width_get Get the width of a string */
64			/* _gx_system_dirty_partial_add Mark the partial area of a */
65			/* widget as dirty */
66			/* _gx_utility_utf8_string_character_get Parse utf8 string to */
67			/* multi-byte glyph */
68			/* _gx_single_line_text_input_position_update */
69			/* Update cursor position */
70			/* according to insert position*/
71			/* */
72			/* CALLED BY */
73			/* */
74			/* Application Code */
75			/* GUIX Internal Code */
76			/* */
77			/**************************************************************************/
78		586	UINT _gx_single_line_text_input_character_delete(GX_SINGLE_LINE_TEXT_INPUT *text_input)
79			{
80		586	GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance;
81			UINT insert_pos;
82			GX_CHAR *string_buffer;
83			UINT string_size;
84			GX_VALUE border_width;
85			GX_VALUE text_width;
86			GX_RECTANGLE client;
87			GX_RECTANGLE dirty_area;
88			GX_FONT *gx_font;
89			GX_VALUE x_pos;
90			GX_VALUE offset;
91			GX_VALUE del_char_width;
92		586	UINT glyph_len = 1;
93
94			GX_STRING string;
95
96	✓✓	586	if (text_input -> gx_single_line_text_input_end_mark > text_input -> gx_single_line_text_input_start_mark)
97			{
98		18	return _gx_single_line_text_input_backspace(text_input);
99			}
100
101		568	insert_pos = text_input -> gx_single_line_text_input_insert_pos;
102		568	string_buffer = text_input -> gx_single_line_text_input_buffer;
103		568	string_size = text_input -> gx_single_line_text_input_string_size;
104
105	✓✓	568	if (insert_pos < string_size)
106			{
107		542	_gx_widget_border_width_get((GX_WIDGET *)text_input, &border_width);
108		542	_gx_widget_client_get((GX_WIDGET *)text_input, border_width, &client);
109
110	✓✓	542	if (text_input -> gx_single_line_text_input_start_mark != text_input -> gx_single_line_text_input_end_mark)
111			{
112		47	glyph_len = text_input -> gx_single_line_text_input_start_mark - text_input -> gx_single_line_text_input_end_mark;
113
114	✓✓	47	if (cursor_ptr -> gx_text_input_cursor_pos.gx_point_x <= client.gx_rectangle_left \|\|
115	✓✓	29	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x >= client.gx_rectangle_right)
116			{
117		24	_gx_single_line_text_input_left_arrow(text_input);
118			}
119		47	text_input -> gx_single_line_text_input_start_mark = 0;
120		47	text_input -> gx_single_line_text_input_end_mark = 0;
121			}
122			#ifdef GX_UTF8_SUPPORT
123			else
124			{
125		495	string.gx_string_ptr = string_buffer + insert_pos;
126		495	string.gx_string_length = string_size - insert_pos;
127
128		495	_gx_utility_utf8_string_character_get(&string, GX_NULL, &glyph_len);
129			}
130			#endif
131		542	dirty_area = client;
132
133		542	_gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_prompt_font_id, &gx_font);
134
135			/* Pick up text witth. */
136		542	string.gx_string_ptr = string_buffer;
137		542	string.gx_string_length = text_input -> gx_single_line_text_input_string_size;
138
139		542	_gx_system_string_width_get_ext(gx_font, &string, &text_width);
140
141		542	string.gx_string_ptr = string_buffer + insert_pos;
142		542	string.gx_string_length = glyph_len;
143
144		542	_gx_system_string_width_get_ext(gx_font, &string, &del_char_width);
145
146	✓✓✓	542	switch (text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK)
147			{
148		138	case GX_STYLE_TEXT_RIGHT:
149		138	x_pos = (GX_VALUE)(client.gx_rectangle_right - 1);
150		138	x_pos = (GX_VALUE)(x_pos - text_input -> gx_single_line_text_input_xoffset);
151
152	✓✓	138	if (x_pos + text_width > client.gx_rectangle_right - 1)
153			{
154		105	offset = (GX_VALUE)((x_pos + text_width - del_char_width) - (client.gx_rectangle_right - 1));
155
156	✓✓	105	if (offset < 0)
157			{
158		7	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset + offset);
159		7	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - offset);
160			}
161			}
162			else
163			{
164		33	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset - del_char_width);
165		33	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x + del_char_width);
166
167		33	dirty_area.gx_rectangle_right = cursor_ptr -> gx_text_input_cursor_pos.gx_point_x;
168			}
169		138	break;
170
171		135	case GX_STYLE_TEXT_CENTER:
172		135	x_pos = (GX_VALUE)(client.gx_rectangle_left + 1);
173		135	x_pos = (GX_VALUE)(x_pos + ((client.gx_rectangle_right - client.gx_rectangle_left + 1) >> 1));
174		135	x_pos = (GX_VALUE)(x_pos - text_input -> gx_single_line_text_input_xoffset);
175	✓✓	135	if (text_width <= (client.gx_rectangle_right - client.gx_rectangle_left + 1 - border_width))
176			{
177		25	dirty_area.gx_rectangle_left = (GX_VALUE)(x_pos - (cursor_ptr -> gx_text_input_cursor_width >> 1));
178		25	dirty_area.gx_rectangle_right = (GX_VALUE)(x_pos + text_width + ((cursor_ptr -> gx_text_input_cursor_width + 1) >> 1) - 1);
179			}
180			/* Calculate the cursor position. */
181		135	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)((text_width - del_char_width + 1) >> 1);
182		135	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x +
183		135	(((text_width + 1) >> 1) - text_input -> gx_single_line_text_input_xoffset));
184		135	break;
185
186		269	case GX_STYLE_TEXT_LEFT:
187			default:
188		269	x_pos = (GX_VALUE)(client.gx_rectangle_left + 1);
189		269	x_pos = (GX_VALUE)(x_pos - text_input -> gx_single_line_text_input_xoffset);
190
191	✓✓	269	if (x_pos < client.gx_rectangle_left + 1)
192			{
193		34	offset = (GX_VALUE)((client.gx_rectangle_right - 1) - (x_pos + text_width - del_char_width));
194
195	✓✓	34	if (offset > 0)
196			{
197	✓✓	18	if (offset > (client.gx_rectangle_left + 1 - x_pos))
198			{
199		6	offset = (GX_VALUE)(client.gx_rectangle_left + 1 - x_pos);
200			}
201
202		18	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset - offset);
203		18	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x + offset);
204			}
205			}
206			else
207			{
208		235	dirty_area.gx_rectangle_left = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - (cursor_ptr -> gx_text_input_cursor_width >> 1));
209		235	dirty_area.gx_rectangle_right = (GX_VALUE)(x_pos + text_width + cursor_ptr -> gx_text_input_cursor_width - 1);
210			}
211		269	break;
212			}
213
214
215			/* Delete a character from the string buffer. */
216		542	memmove(string_buffer + insert_pos, string_buffer + insert_pos + glyph_len, string_size - insert_pos - glyph_len);
217
218		542	string_buffer[string_size - glyph_len] = '\0';
219		542	text_input -> gx_single_line_text_input_string_size -= glyph_len;
220
221			/* Mark text input be changed. */
222		542	text_input -> gx_single_line_text_input_was_modified = GX_TRUE;
223
224		542	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &dirty_area);
225			}
226
227		568	return GX_SUCCESS;
228			}
229