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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_multi_line_text_input_left_arrow.c	Lines:	45	45	100.0 %
Date:	2024-12-05 08:52:37	Branches:	16	16	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                                                        */
/**                                                                       */
/**   Multi Line Text Input Management (Multi Line Text Input)            */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_system.h"
#include "gx_window.h"
#include "gx_scrollbar.h"
#include "gx_multi_line_text_input.h"
#include "gx_multi_line_text_view.h"
#include "gx_text_input_cursor.h"
#include "gx_utility.h"
#include "gx_widget.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_multi_line_text_input_left_arrow                PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function move the cursor to left by one character.             */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    text_input                                Multi line text input     */
/*                                                control block           */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_widget_font_get                   Retrieve font                 */
/*    _gx_text_input_cursor_dirty_rectangle_get                           */
/*                                          Get cursor rectangle          */
/*    _gx_system_string_width_get           Get the pixel width of one    */
/*                                            specificed string           */
/*    _gx_multi_line_text_input_cursor_pos_update                         */
/*                                          Calculate cursor position     */
/*                                            according to insert index   */
/*    _gx_system_dirty_partial_add          Add one dirty area to         */
/*                                            dirty list                  */
/*    _gx_system_dirty_mark                 Mark widget area dirty        */
/*    _gx_utility_utf8_string_character_get Parses utf8 string to         */
/*                                            multi-byte glyph            */
/*    _gx_utility_string_length_check       Test string length            */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    _gx_multi_line_text_input_keydown_process                           */
/*                                                                        */
/*  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_multi_line_text_input_left_arrow(GX_MULTI_LINE_TEXT_INPUT *text_input)
{
GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_multi_line_text_input_cursor_instance;
GX_VALUE              char_width;
GX_STRING             string;
UINT                  insert_pos;
GX_POINT              cur_pos;
INT                   shift;
GX_RECTANGLE          cur_rect;
UINT                  glyph_len = 1;
GX_FONT              *font;
UINT                  start_mark = text_input -> gx_multi_line_text_input_start_mark;
UINT                  end_mark = text_input -> gx_multi_line_text_input_end_mark;

    if (start_mark != end_mark)
    {
        cur_pos = cursor_ptr -> gx_text_input_cursor_pos;

        if (end_mark < start_mark)
        {
            _gx_multi_line_text_input_cursor_visible(text_input);

            /* Get highlight area. */
            _gx_multi_line_text_input_highlight_rectangle_get(text_input, &cur_rect);
        }
        else
        {
            text_input -> gx_multi_line_text_input_text_insert_position = start_mark;

            shift = text_input -> gx_multi_line_text_view_text_scroll_shift;

            /* Recalculate cursor position according to cursor insert position. */
            _gx_multi_line_text_input_cursor_pos_update(text_input, GX_TRUE);

            /* Dirty mark. */
            if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift)
            {
                _gx_multi_line_text_input_text_rectangle_get(text_input, cursor_ptr -> gx_text_input_cursor_pos, cur_pos, &cur_rect);
            }
            else
            {
                cur_rect = text_input -> gx_widget_size;
            }
        }

        text_input -> gx_multi_line_text_input_start_mark = 0;
        text_input -> gx_multi_line_text_input_end_mark = 0;

        /* Mark highlight area as dirty. */
        _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);

        /* Mark cursor area as dirty. */
        _gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
        _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
    }
    else
    {
        _gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_multi_line_text_view_font_id, &font);

        if (!font)
        {
            return GX_FAILURE;
        }

        insert_pos = text_input -> gx_multi_line_text_input_text_insert_position;
        if (insert_pos > 0)
        {
            _gx_multi_line_text_input_cursor_visible(text_input);

#ifdef GX_UTF8_SUPPORT
            _gx_utility_utf8_string_backward_character_length_get(&text_input -> gx_multi_line_text_view_text,
                                                                  (INT)(insert_pos - 1), &glyph_len);
#endif
            string.gx_string_ptr = &text_input -> gx_multi_line_text_view_text.gx_string_ptr[insert_pos - glyph_len];

            if (string.gx_string_ptr[0] == GX_KEY_CARRIAGE_RETURN || string.gx_string_ptr[0] == GX_KEY_LINE_FEED)
            {
                glyph_len = text_input -> gx_multi_line_text_input_new_line_character_size;
            }

            /* Move the cursor position in the input buffer forward by one character. */
            text_input -> gx_multi_line_text_input_text_insert_position -= glyph_len;
            string.gx_string_ptr = &text_input -> gx_multi_line_text_view_text.gx_string_ptr[insert_pos - glyph_len];
            string.gx_string_length = glyph_len;
            _gx_system_string_width_get_ext(font, &string, &char_width);

            /* Record scroll shift before recalculate cursor position. */
            _gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
            shift = text_input -> gx_multi_line_text_view_text_scroll_shift;

            _gx_multi_line_text_input_cursor_pos_update(text_input, GX_TRUE);

            /* Dirty mark. */
            if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift)
            {
                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
                _gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
                _gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
            }
            else
            {
                _gx_system_dirty_mark((GX_WIDGET *)text_input);
            }
        }
    }

    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			/** 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			#include "gx_widget.h"
35
36			/**************************************************************************/
37			/* */
38			/* FUNCTION RELEASE */
39			/* */
40			/* _gx_multi_line_text_input_left_arrow PORTABLE C */
41			/* 6.1 */
42			/* AUTHOR */
43			/* */
44			/* Kenneth Maxwell, Microsoft Corporation */
45			/* */
46			/* DESCRIPTION */
47			/* */
48			/* This function move the cursor to left by one character. */
49			/* */
50			/* INPUT */
51			/* */
52			/* text_input Multi line text input */
53			/* control block */
54			/* */
55			/* OUTPUT */
56			/* */
57			/* None */
58			/* */
59			/* CALLS */
60			/* */
61			/* _gx_widget_font_get Retrieve font */
62			/* _gx_text_input_cursor_dirty_rectangle_get */
63			/* Get cursor rectangle */
64			/* _gx_system_string_width_get Get the pixel width of one */
65			/* specificed string */
66			/* _gx_multi_line_text_input_cursor_pos_update */
67			/* Calculate cursor position */
68			/* according to insert index */
69			/* _gx_system_dirty_partial_add Add one dirty area to */
70			/* dirty list */
71			/* _gx_system_dirty_mark Mark widget area dirty */
72			/* _gx_utility_utf8_string_character_get Parses utf8 string to */
73			/* multi-byte glyph */
74			/* _gx_utility_string_length_check Test string length */
75			/* */
76			/* CALLED BY */
77			/* */
78			/* _gx_multi_line_text_input_keydown_process */
79			/* */
80			/* RELEASE HISTORY */
81			/* */
82			/* DATE NAME DESCRIPTION */
83			/* */
84			/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
85			/* 09-30-2020 Kenneth Maxwell Modified comment(s), */
86			/* resulting in version 6.1 */
87			/* */
88			/**************************************************************************/
89		595	UINT _gx_multi_line_text_input_left_arrow(GX_MULTI_LINE_TEXT_INPUT *text_input)
90			{
91		595	GX_TEXT_INPUT_CURSOR *cursor_ptr = &text_input -> gx_multi_line_text_input_cursor_instance;
92			GX_VALUE char_width;
93			GX_STRING string;
94			UINT insert_pos;
95			GX_POINT cur_pos;
96			INT shift;
97			GX_RECTANGLE cur_rect;
98		595	UINT glyph_len = 1;
99			GX_FONT *font;
100		595	UINT start_mark = text_input -> gx_multi_line_text_input_start_mark;
101		595	UINT end_mark = text_input -> gx_multi_line_text_input_end_mark;
102
103	✓✓	595	if (start_mark != end_mark)
104			{
105		151	cur_pos = cursor_ptr -> gx_text_input_cursor_pos;
106
107	✓✓	151	if (end_mark < start_mark)
108			{
109		75	_gx_multi_line_text_input_cursor_visible(text_input);
110
111			/* Get highlight area. */
112		75	_gx_multi_line_text_input_highlight_rectangle_get(text_input, &cur_rect);
113			}
114			else
115			{
116		76	text_input -> gx_multi_line_text_input_text_insert_position = start_mark;
117
118		76	shift = text_input -> gx_multi_line_text_view_text_scroll_shift;
119
120			/* Recalculate cursor position according to cursor insert position. */
121		76	_gx_multi_line_text_input_cursor_pos_update(text_input, GX_TRUE);
122
123			/* Dirty mark. */
124	✓✓	76	if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift)
125			{
126		52	_gx_multi_line_text_input_text_rectangle_get(text_input, cursor_ptr -> gx_text_input_cursor_pos, cur_pos, &cur_rect);
127			}
128			else
129			{
130		24	cur_rect = text_input -> gx_widget_size;
131			}
132			}
133
134		151	text_input -> gx_multi_line_text_input_start_mark = 0;
135		151	text_input -> gx_multi_line_text_input_end_mark = 0;
136
137			/* Mark highlight area as dirty. */
138		151	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
139
140			/* Mark cursor area as dirty. */
141		151	_gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
142		151	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
143			}
144			else
145			{
146		444	_gx_widget_font_get((GX_WIDGET *)text_input, text_input -> gx_multi_line_text_view_font_id, &font);
147
148	✓✓	444	if (!font)
149			{
150		1	return GX_FAILURE;
151			}
152
153		443	insert_pos = text_input -> gx_multi_line_text_input_text_insert_position;
154	✓✓	443	if (insert_pos > 0)
155			{
156		410	_gx_multi_line_text_input_cursor_visible(text_input);
157
158			#ifdef GX_UTF8_SUPPORT
159		410	_gx_utility_utf8_string_backward_character_length_get(&text_input -> gx_multi_line_text_view_text,
160		410	(INT)(insert_pos - 1), &glyph_len);
161			#endif
162		410	string.gx_string_ptr = &text_input -> gx_multi_line_text_view_text.gx_string_ptr[insert_pos - glyph_len];
163
164	✓✓✓✓	410	if (string.gx_string_ptr[0] == GX_KEY_CARRIAGE_RETURN \|\| string.gx_string_ptr[0] == GX_KEY_LINE_FEED)
165			{
166		210	glyph_len = text_input -> gx_multi_line_text_input_new_line_character_size;
167			}
168
169			/* Move the cursor position in the input buffer forward by one character. */
170		410	text_input -> gx_multi_line_text_input_text_insert_position -= glyph_len;
171		410	string.gx_string_ptr = &text_input -> gx_multi_line_text_view_text.gx_string_ptr[insert_pos - glyph_len];
172		410	string.gx_string_length = glyph_len;
173		410	_gx_system_string_width_get_ext(font, &string, &char_width);
174
175			/* Record scroll shift before recalculate cursor position. */
176		410	_gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
177		410	shift = text_input -> gx_multi_line_text_view_text_scroll_shift;
178
179		410	_gx_multi_line_text_input_cursor_pos_update(text_input, GX_TRUE);
180
181			/* Dirty mark. */
182	✓✓	410	if (shift == text_input -> gx_multi_line_text_view_text_scroll_shift)
183			{
184		398	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
185		398	_gx_text_input_cursor_dirty_rectangle_get(&text_input -> gx_multi_line_text_input_cursor_instance, &cur_rect);
186		398	_gx_system_dirty_partial_add((GX_WIDGET *)text_input, &cur_rect);
187			}
188			else
189			{
190		12	_gx_system_dirty_mark((GX_WIDGET *)text_input);
191			}
192			}
193			}
194
195		594	return GX_SUCCESS;
196			}
197