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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_single_line_text_input_mark_previous.c	Lines:	48	48	100.0 %
Date:	2024-12-05 08:52:37	Branches:	14	14	100.0 %


/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 *
 * 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_mark_previous            PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function highlights the character before the end mark position.*/
/*                                                                        */
/*  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_partial_add          Mark the partial area of a    */
/*                                            widget as dirty             */
/*    _gx_text_input_cursor_dirty_rectangle_get                           */
/*                                          Get cursor rectangle          */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    GUIX Internal Code                                                  */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
/*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
/*                                            resulting in version 6.1    */
/*                                                                        */
/**************************************************************************/
UINT _gx_single_line_text_input_mark_previous(GX_SINGLE_LINE_TEXT_INPUT *text_input)
{
GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance;
GX_RECTANGLE          client;
GX_RECTANGLE          cursor_rect;
GX_VALUE              new_cursor_pos;
GX_VALUE              width;
GX_FONT              *gx_font;
UINT                  glyph_len = 1;
GX_BOOL               mark_all = GX_FALSE;
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_STRING             string;

    if (start_mark == end_mark)
    {
        start_mark = text_input -> gx_single_line_text_input_insert_pos;
        end_mark = text_input -> gx_single_line_text_input_insert_pos;

        text_input -> gx_single_line_text_input_start_mark = start_mark;
        text_input -> gx_single_line_text_input_end_mark = end_mark;
    }

    string.gx_string_ptr = (GX_CONST GX_CHAR *)text_input -> gx_single_line_text_input_buffer;
    string.gx_string_length = text_input -> gx_single_line_text_input_string_size;

    if (end_mark > 0)
    {
#ifdef GX_UTF8_SUPPORT
        /* Get the glyph length of the character before end mark */
        _gx_utility_utf8_string_backward_character_length_get(&string, (INT)(end_mark - 1), &glyph_len);
#endif

        text_input -> gx_single_line_text_input_end_mark -= glyph_len;
        text_input -> gx_single_line_text_input_insert_pos -= glyph_len;

        /* 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);

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

        /* Get width of the character before end mark. */
        string.gx_string_ptr += (end_mark - glyph_len);
        string.gx_string_length = glyph_len;
        _gx_system_string_width_get_ext(gx_font, &string, &width);

        new_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:
            break;

        case GX_STYLE_TEXT_RIGHT:
        case GX_STYLE_TEXT_LEFT:
        default:
            if (new_cursor_pos < client.gx_rectangle_left + 1)
            {
                /* The previous marked character is out of client area, update 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 + new_cursor_pos);

                new_cursor_pos = (GX_VALUE)(client.gx_rectangle_left + 1);

                /* Should mark all widget as dirty*/
                mark_all = GX_TRUE;
            }
            else if (new_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 +
                                                                             new_cursor_pos - client.gx_rectangle_right + 1);
                new_cursor_pos = (GX_VALUE)(client.gx_rectangle_right - 1);

                /* Should mark all widget as dirty.  */
                mark_all = GX_TRUE;
            }
            break;
        }


        if (!mark_all)
        {
            client.gx_rectangle_left = new_cursor_pos;
            client.gx_rectangle_right = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - 1);

            if (start_mark == end_mark)
            {
                /* Get old cursor rectangle. */
                _gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &cursor_rect);

                /* Combine with old cursor rectangle. */
                _gx_utility_rectangle_combine(&client, &cursor_rect);
            }
        }

        cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = new_cursor_pos;

        _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			*
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_context.h"
28			#include "gx_system.h"
29			#include "gx_widget.h"
30			#include "gx_single_line_text_input.h"
31			#include "gx_text_input_cursor.h"
32			#include "gx_utility.h"
33
34			/**************************************************************************/
35			/* */
36			/* FUNCTION RELEASE */
37			/* */
38			/* _gx_single_line_text_input_mark_previous PORTABLE C */
39			/* 6.1 */
40			/* AUTHOR */
41			/* */
42			/* Kenneth Maxwell, Microsoft Corporation */
43			/* */
44			/* DESCRIPTION */
45			/* */
46			/* This function highlights the character before the end mark position.*/
47			/* */
48			/* INPUT */
49			/* */
50			/* text_input Single-line text input widget */
51			/* control block */
52			/* */
53			/* OUTPUT */
54			/* */
55			/* None */
56			/* */
57			/* CALLS */
58			/* */
59			/* _gx_utility_utf8_string_character_get Parse utf8 string to */
60			/* multi-byte glyph */
61			/* _gx_widget_border_width_get Get the widget border width */
62			/* _gx_widget_client_get Get widget client rectangle */
63			/* _gx_widget_font_get Get font by specified ID */
64			/* _gx_system_string_width_get Get the width of a string */
65			/* _gx_system_dirty_partial_add Mark the partial area of a */
66			/* widget as dirty */
67			/* _gx_text_input_cursor_dirty_rectangle_get */
68			/* Get cursor rectangle */
69			/* */
70			/* CALLED BY */
71			/* */
72			/* GUIX Internal Code */
73			/* */
74			/* RELEASE HISTORY */
75			/* */
76			/* DATE NAME DESCRIPTION */
77			/* */
78			/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
79			/* 09-30-2020 Kenneth Maxwell Modified comment(s), */
80			/* resulting in version 6.1 */
81			/* */
82			/**************************************************************************/
83		805	UINT _gx_single_line_text_input_mark_previous(GX_SINGLE_LINE_TEXT_INPUT *text_input)
84			{
85		805	GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_single_line_text_input_cursor_instance;
86			GX_RECTANGLE client;
87			GX_RECTANGLE cursor_rect;
88			GX_VALUE new_cursor_pos;
89			GX_VALUE width;
90			GX_FONT *gx_font;
91		805	UINT glyph_len = 1;
92		805	GX_BOOL mark_all = GX_FALSE;
93		805	UINT start_mark = text_input -> gx_single_line_text_input_start_mark;
94		805	UINT end_mark = text_input -> gx_single_line_text_input_end_mark;
95			GX_STRING string;
96
97	✓✓	805	if (start_mark == end_mark)
98			{
99		34	start_mark = text_input -> gx_single_line_text_input_insert_pos;
100		34	end_mark = text_input -> gx_single_line_text_input_insert_pos;
101
102		34	text_input -> gx_single_line_text_input_start_mark = start_mark;
103		34	text_input -> gx_single_line_text_input_end_mark = end_mark;
104			}
105
106		805	string.gx_string_ptr = (GX_CONST GX_CHAR *)text_input -> gx_single_line_text_input_buffer;
107		805	string.gx_string_length = text_input -> gx_single_line_text_input_string_size;
108
109	✓✓	805	if (end_mark > 0)
110			{
111			#ifdef GX_UTF8_SUPPORT
112			/* Get the glyph length of the character before end mark */
113		615	_gx_utility_utf8_string_backward_character_length_get(&string, (INT)(end_mark - 1), &glyph_len);
114			#endif
115
116		615	text_input -> gx_single_line_text_input_end_mark -= glyph_len;
117		615	text_input -> gx_single_line_text_input_insert_pos -= glyph_len;
118
119			/* Pick up widget border width. */
120		615	_gx_widget_border_width_get((GX_WIDGET *)text_input, &width);
121
122			/* Get widget client rectangle. */
123		615	_gx_widget_client_get((GX_WIDGET *)text_input, width, &client);
124
125			/* Pick up text font. */
126		615	_gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_prompt_font_id, &gx_font);
127
128			/* Get width of the character before end mark. */
129		615	string.gx_string_ptr += (end_mark - glyph_len);
130		615	string.gx_string_length = glyph_len;
131		615	_gx_system_string_width_get_ext(gx_font, &string, &width);
132
133		615	new_cursor_pos = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - width);
134
135	✓✓	615	switch (text_input -> gx_widget_style & GX_STYLE_TEXT_ALIGNMENT_MASK)
136			{
137		198	case GX_STYLE_TEXT_CENTER:
138		198	break;
139
140		417	case GX_STYLE_TEXT_RIGHT:
141			case GX_STYLE_TEXT_LEFT:
142			default:
143	✓✓	417	if (new_cursor_pos < client.gx_rectangle_left + 1)
144			{
145			/* The previous marked character is out of client area, update x offset. */
146		50	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset -
147		50	client.gx_rectangle_left - 1 + new_cursor_pos);
148
149		50	new_cursor_pos = (GX_VALUE)(client.gx_rectangle_left + 1);
150
151			/* Should mark all widget as dirty*/
152		50	mark_all = GX_TRUE;
153			}
154	✓✓	367	else if (new_cursor_pos > client.gx_rectangle_right - 1)
155			{
156			/* Cursor position is out of client rectangle, update x offset. */
157		8	text_input -> gx_single_line_text_input_xoffset = (GX_VALUE)(text_input -> gx_single_line_text_input_xoffset +
158		8	new_cursor_pos - client.gx_rectangle_right + 1);
159		8	new_cursor_pos = (GX_VALUE)(client.gx_rectangle_right - 1);
160
161			/* Should mark all widget as dirty. */
162		8	mark_all = GX_TRUE;
163			}
164		417	break;
165			}
166
167
168	✓✓	615	if (!mark_all)
169			{
170		557	client.gx_rectangle_left = new_cursor_pos;
171		557	client.gx_rectangle_right = (GX_VALUE)(cursor_ptr -> gx_text_input_cursor_pos.gx_point_x - 1);
172
173	✓✓	557	if (start_mark == end_mark)
174			{
175			/* Get old cursor rectangle. */
176		31	_gx_text_input_cursor_dirty_rectangle_get(cursor_ptr, &cursor_rect);
177
178			/* Combine with old cursor rectangle. */
179		31	_gx_utility_rectangle_combine(&client, &cursor_rect);
180			}
181			}
182
183		615	cursor_ptr -> gx_text_input_cursor_pos.gx_point_x = new_cursor_pos;
184
185		615	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &client);
186			}
187
188		805	return GX_SUCCESS;
189			}
190