Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_single_line_text_input_left_arrow.c	Lines:	67	67	100.0 %
Date:	2026-03-06 19:21:09	Branches:	32	32	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_context.h"
#include "gx_system.h"
#include "gx_widget.h"
#include "gx_single_line_text_input.h"
#include "gx_text_input_cursor.h"
#include "gx_utility.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_single_line_text_input_left_arrow               PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This service moves the text input cursor one character position to  */
/*      the left.                                                         */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    text_input                            Single-line text input widget */
/*                                            control block               */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_utility_utf8_string_character_get Parse utf8 string to          */
/*                                            multi-byte glyph            */
/*    _gx_widget_border_width_get           Get the 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_mark                 Mark the area of the widget   */
/*                                            as dirty                    */
/*    _gx_system_dirty_partial_add          Mark the partial area of a    */
/*                                            widget as dirty             */
/*    _gx_text_input_cursor_dirty_rectangle_get                           */
/*                                          Get cursor rectangle          */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*    GUIX Internal Code                                                  */
/*                                                                        */
/**************************************************************************/
UINT _gx_single_line_text_input_left_arrow(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_RECTANGLE          client;
GX_RECTANGLE          cursor_rect;
GX_VALUE              old_cursor_pos;
GX_VALUE              cursor_pos;
GX_VALUE              width;
GX_FONT              *gx_font;
UINT                  glyph_len = 1;
UINT                  start_mark = text_input -> gx_single_line_text_input_start_mark;
UINT                  end_mark = text_input -> gx_single_line_text_input_end_mark;
GX_BOOL               mark_all = GX_FALSE;
GX_STRING             string;

    string.gx_string_ptr = text_input -> gx_single_line_text_input_buffer;
    string.gx_string_length = text_input -> gx_single_line_text_input_string_size;


    /* Move the cursor to the left by a character width.  */

    /* Pick up widget border width. */
    _gx_widget_border_width_get((GX_WIDGET *)text_input, &width);

    /* Get widget client rectangle. */
    _gx_widget_client_get((GX_WIDGET *)text_input, width, &client);

    cursor_pos = cursor_ptr -> gx_text_input_cursor_pos.gx_point_x;
    old_cursor_pos = cursor_pos;

    if (start_mark != end_mark)
    {
        text_input -> gx_single_line_text_input_start_mark = 0;
        text_input -> gx_single_line_text_input_end_mark = 0;

        if (end_mark < start_mark)
        {
            if (((cursor_pos > client.gx_rectangle_left) &&
                 (cursor_pos < client.gx_rectangle_right)) ||
                ((text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK) == GX_STYLE_TEXT_CENTER))
            {
                /* No need to update cursor position, just need mark
                    cursor and highlight area as dirty. */
                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &cursor_rect);

                _gx_single_line_text_input_text_rectangle_get(text_input, (INT)(start_mark - end_mark), &client);

                /* Combine cursor rect and highlight area. */
                _gx_utility_rectangle_combine(&client, &cursor_rect);

                return _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
            }
        }
    }

    insert_pos = text_input -> gx_single_line_text_input_insert_pos;

    if ((insert_pos > 0) || (start_mark > end_mark))
    {
        if (end_mark >= start_mark)
        {
            /* Calculate new cursor position. */
            if (end_mark != start_mark)
            {
                glyph_len = end_mark - start_mark;
            }
#ifdef GX_UTF8_SUPPORT
            else
            {
                /* Get the glyph length of the cursor left character. */
                _gx_utility_utf8_string_backward_character_length_get(&string, (INT)(insert_pos - 1), &glyph_len);
            }
#endif
            /* Reset the value of cursor positin. */
            text_input -> gx_single_line_text_input_insert_pos -= glyph_len;

            /* Pick up text font. */
            _gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_prompt_font_id, &gx_font);

            /* Get text length before current cursor position to new cursor position. */
            string.gx_string_ptr += (insert_pos - glyph_len);
            string.gx_string_length = glyph_len;
            _gx_system_string_width_get_ext(gx_font, &string, &width);

            cursor_pos = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - width);
        }

        switch (text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK)
        {
        case GX_STYLE_TEXT_CENTER:
            if (start_mark == end_mark)
            {
                /* Mark old cursor area dirty. */
                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
            }

            cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = cursor_pos;

            /* Mark new cursor area dirty. */
            _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
            _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
            break;

        case GX_STYLE_TEXT_RIGHT:
        case GX_STYLE_TEXT_LEFT:
        default:
            if (cursor_pos < client.gx_rectangle_left + 1)
            {
                /* Update text input x offset. */
                text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset -
                                                                             client.gx_rectangle_left - 1 + cursor_pos);
                cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_left + 1);

                mark_all = GX_TRUE;
            }
            else if (cursor_pos > client.gx_rectangle_right - 1)
            {
                /* Cursor position is out of client rectangle, update x offset. */
                text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset +
                                                                             cursor_pos - client.gx_rectangle_right + 1);
                cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_right - 1);

                /* Should mark all widget as dirty.  */
                mark_all = GX_TRUE;
            }
            else
            {
                if (start_mark == end_mark)
                {
                    /* Mark old cursor area dirty. */
                    _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
                    _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
                }
                cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = cursor_pos;

                /* Mark new cursor area dirty. */
                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
            }
            break;
        }

        if ((!mark_all) && (start_mark != end_mark))
        {
            /* Mark highlight area as dirty. */
            client.gx_rectangle_left = cursor_pos;
            client.gx_rectangle_right = (GX_VALUE)(old_cursor_pos - 1);
        }

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

    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_context.h"
29			#include "gx_system.h"
30			#include "gx_widget.h"
31			#include "gx_single_line_text_input.h"
32			#include "gx_text_input_cursor.h"
33			#include "gx_utility.h"
34
35			/**************************************************************************/
36			/* */
37			/* FUNCTION RELEASE */
38			/* */
39			/* _gx_single_line_text_input_left_arrow PORTABLE C */
40			/* 6.1 */
41			/* AUTHOR */
42			/* */
43			/* Kenneth Maxwell, Microsoft Corporation */
44			/* */
45			/* DESCRIPTION */
46			/* */
47			/* This service moves the text input cursor one character position to */
48			/* the left. */
49			/* */
50			/* INPUT */
51			/* */
52			/* text_input Single-line text input widget */
53			/* control block */
54			/* */
55			/* OUTPUT */
56			/* */
57			/* None */
58			/* */
59			/* CALLS */
60			/* */
61			/* _gx_utility_utf8_string_character_get Parse utf8 string to */
62			/* multi-byte glyph */
63			/* _gx_widget_border_width_get Get the widget border width */
64			/* _gx_widget_client_get Get widget client rectangle */
65			/* _gx_widget_font_get Get font by specified ID */
66			/* _gx_system_string_width_get Get the width of a string */
67			/* _gx_system_dirty_mark Mark the area of the widget */
68			/* as dirty */
69			/* _gx_system_dirty_partial_add Mark the partial area of a */
70			/* widget as dirty */
71			/* _gx_text_input_cursor_dirty_rectangle_get */
72			/* Get cursor rectangle */
73			/* */
74			/* CALLED BY */
75			/* */
76			/* Application Code */
77			/* GUIX Internal Code */
78			/* */
79			/**************************************************************************/
80		581	UINT _gx_single_line_text_input_left_arrow(GX_SINGLE_LINE_TEXT_INPUT *text_input)
81			{
82		581	GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance;
83			UINT insert_pos;
84			GX_RECTANGLE client;
85			GX_RECTANGLE cursor_rect;
86			GX_VALUE old_cursor_pos;
87			GX_VALUE cursor_pos;
88			GX_VALUE width;
89			GX_FONT *gx_font;
90		581	UINT glyph_len = 1;
91		581	UINT start_mark = text_input -> gx_single_line_text_input_start_mark;
92		581	UINT end_mark = text_input -> gx_single_line_text_input_end_mark;
93		581	GX_BOOL mark_all = GX_FALSE;
94			GX_STRING string;
95
96		581	string.gx_string_ptr = text_input -> gx_single_line_text_input_buffer;
97		581	string.gx_string_length = text_input -> gx_single_line_text_input_string_size;
98
99
100			/* Move the cursor to the left by a character width. */
101
102			/* Pick up widget border width. */
103		581	_gx_widget_border_width_get((GX_WIDGET *)text_input, &width);
104
105			/* Get widget client rectangle. */
106		581	_gx_widget_client_get((GX_WIDGET *)text_input, width, &client);
107
108		581	cursor_pos = cursor_ptr -> gx_text_input_cursor_pos.gx_point_x;
109		581	old_cursor_pos = cursor_pos;
110
111	✓✓	581	if (start_mark != end_mark)
112			{
113		70	text_input -> gx_single_line_text_input_start_mark = 0;
114		70	text_input -> gx_single_line_text_input_end_mark = 0;
115
116	✓✓	70	if (end_mark < start_mark)
117			{
118	✓✓	49	if (((cursor_pos > client.gx_rectangle_left) &&
119	✓✓	20	(cursor_pos < client.gx_rectangle_right)) \|\|
120	✓✓	38	((text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK) == GX_STYLE_TEXT_CENTER))
121			{
122			/* No need to update cursor position, just need mark
123			cursor and highlight area as dirty. */
124		24	_gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &cursor_rect);
125
126		24	_gx_single_line_text_input_text_rectangle_get(text_input, (INT)(start_mark - end_mark), &client);
127
128			/* Combine cursor rect and highlight area. */
129		24	_gx_utility_rectangle_combine(&client, &cursor_rect);
130
131		24	return _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
132			}
133			}
134			}
135
136		557	insert_pos = text_input -> gx_single_line_text_input_insert_pos;
137
138	✓✓✓✓	557	if ((insert_pos > 0) \|\| (start_mark > end_mark))
139			{
140	✓✓	531	if (end_mark >= start_mark)
141			{
142			/* Calculate new cursor position. */
143	✓✓	506	if (end_mark != start_mark)
144			{
145		21	glyph_len = end_mark - start_mark;
146			}
147			#ifdef GX_UTF8_SUPPORT
148			else
149			{
150			/* Get the glyph length of the cursor left character. */
151		485	_gx_utility_utf8_string_backward_character_length_get(&string, (INT)(insert_pos - 1), &glyph_len);
152			}
153			#endif
154			/* Reset the value of cursor positin. */
155		506	text_input -> gx_single_line_text_input_insert_pos -= glyph_len;
156
157			/* Pick up text font. */
158		506	_gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_prompt_font_id, &gx_font);
159
160			/* Get text length before current cursor position to new cursor position. */
161		506	string.gx_string_ptr += (insert_pos - glyph_len);
162		506	string.gx_string_length = glyph_len;
163		506	_gx_system_string_width_get_ext(gx_font, &string, &width);
164
165		506	cursor_pos = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - width);
166			}
167
168	✓✓	531	switch (text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK)
169			{
170		129	case GX_STYLE_TEXT_CENTER:
171	✓✓	129	if (start_mark == end_mark)
172			{
173			/* Mark old cursor area dirty. */
174		122	_gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
175		122	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
176			}
177
178		129	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = cursor_pos;
179
180			/* Mark new cursor area dirty. */
181		129	_gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
182		129	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
183		129	break;
184
185		402	case GX_STYLE_TEXT_RIGHT:
186			case GX_STYLE_TEXT_LEFT:
187			default:
188	✓✓	402	if (cursor_pos < client.gx_rectangle_left + 1)
189			{
190			/* Update text input x offset. */
191		57	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset -
192		57	client.gx_rectangle_left - 1 + cursor_pos);
193		57	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_left + 1);
194
195		57	mark_all = GX_TRUE;
196			}
197	✓✓	345	else if (cursor_pos > client.gx_rectangle_right - 1)
198			{
199			/* Cursor position is out of client rectangle, update x offset. */
200		8	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset +
201		8	cursor_pos - client.gx_rectangle_right + 1);
202		8	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = (GX_VALUE)(client.gx_rectangle_right - 1);
203
204			/* Should mark all widget as dirty. */
205		8	mark_all = GX_TRUE;
206			}
207			else
208			{
209	✓✓	337	if (start_mark == end_mark)
210			{
211			/* Mark old cursor area dirty. */
212		333	_gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
213		333	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
214			}
215		337	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = cursor_pos;
216
217			/* Mark new cursor area dirty. */
218		337	_gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &client);
219		337	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
220			}
221		402	break;
222			}
223
224	✓✓✓✓	531	if ((!mark_all) && (start_mark != end_mark))
225			{
226			/* Mark highlight area as dirty. */
227		11	client.gx_rectangle_left = cursor_pos;
228		11	client.gx_rectangle_right = (GX_VALUE)(old_cursor_pos - 1);
229			}
230
231		531	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
232			}
233
234		557	return GX_SUCCESS;
235			}
236