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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_multi_line_text_view_scroll_info_get.c	Lines:	31	31	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 View Management (Multi Line Text View)              */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_system.h"
#include "gx_window.h"
#include "gx_widget.h"
#include "gx_utility.h"
#include "gx_multi_line_text_view.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_multi_line_text_view_scroll_info_get            PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function gets the multi-line text view scroll information.     */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    text_view                            Multi line text view widget    */
/*                                           control block                */
/*    style                                 Style                         */
/*    info                                 Pointer to destination for     */
/*                                           scroll info                  */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_widget_font_get                   Obtain the font               */
/*    _gx_multi_line_text_view_string_total_rows_computer                 */
/*                                          Compute the number of rows    */
/*                                            for the text view text      */
/*    _gx_utility_rectangle_resize          Offset 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_multi_line_text_view_scroll_info_get(GX_MULTI_LINE_TEXT_VIEW *text_view, ULONG style, GX_SCROLL_INFO *info)
{
GX_RECTANGLE client;
GX_VALUE     line_height;
INT          text_height;
INT          value;
INT          shift;
GX_FONT     *font;

    GX_PARAMETER_NOT_USED(style);

    /* Get font. */
    _gx_widget_font_get((GX_WIDGET *)text_view, text_view -> gx_multi_line_text_view_font_id, &font);

    if (!font)
    {
        return GX_FAILURE;
    }

    if (text_view -> gx_multi_line_text_view_line_index_old)
    {
        /* Calculate text total rows. */
        _gx_multi_line_text_view_string_total_rows_compute(text_view);
    }

    /* Pickup text height. */
    line_height = (GX_VALUE)(font -> gx_font_line_height + text_view -> gx_multi_line_text_view_line_space);
    text_height = (INT)(line_height * (INT)text_view -> gx_multi_line_text_view_text_total_rows);

    client = text_view -> gx_window_client;

    if (text_view -> gx_multi_line_text_view_whitespace)
    {
        /* Offset client bounding box.  */
        _gx_utility_rectangle_resize(&client, (GX_VALUE)(-text_view -> gx_multi_line_text_view_whitespace));
    }

    info -> gx_scroll_minimum = client.gx_rectangle_top;
    info -> gx_scroll_maximum = info -> gx_scroll_minimum + text_height - 1;
    info -> gx_scroll_visible = (GX_VALUE)(client.gx_rectangle_bottom - client.gx_rectangle_top + 1);

    if (text_height < info -> gx_scroll_visible)
    {
        info -> gx_scroll_maximum = info -> gx_scroll_minimum + info -> gx_scroll_visible - 1;
    }

    shift = text_view -> gx_multi_line_text_view_text_scroll_shift;
    value = client.gx_rectangle_top - shift;

    if (value < info -> gx_scroll_minimum)
    {
        value = info -> gx_scroll_minimum;
    }
    else if (value > info -> gx_scroll_maximum - info -> gx_scroll_visible + 1)
    {
        value = info -> gx_scroll_maximum - info -> gx_scroll_visible + 1;
    }

    shift = client.gx_rectangle_top - value;

    if (shift != text_view -> gx_multi_line_text_view_text_scroll_shift)
    {
        /* Update shift value.  */
        text_view -> gx_multi_line_text_view_text_scroll_shift = shift;
    }

    info -> gx_scroll_value = value;
    info -> gx_scroll_increment = line_height;

    if (text_view -> gx_multi_line_text_view_text_total_rows >
        text_view -> gx_multi_line_text_view_cache_size)
    {
        _gx_multi_line_text_view_line_cache_update((GX_MULTI_LINE_TEXT_VIEW *)text_view);
    }

    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 View Management (Multi Line Text View) */
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_widget.h"
30			#include "gx_utility.h"
31			#include "gx_multi_line_text_view.h"
32
33			/**************************************************************************/
34			/* */
35			/* FUNCTION RELEASE */
36			/* */
37			/* _gx_multi_line_text_view_scroll_info_get PORTABLE C */
38			/* 6.1 */
39			/* AUTHOR */
40			/* */
41			/* Kenneth Maxwell, Microsoft Corporation */
42			/* */
43			/* DESCRIPTION */
44			/* */
45			/* This function gets the multi-line text view scroll information. */
46			/* */
47			/* INPUT */
48			/* */
49			/* text_view Multi line text view widget */
50			/* control block */
51			/* style Style */
52			/* info Pointer to destination for */
53			/* scroll info */
54			/* */
55			/* OUTPUT */
56			/* */
57			/* status Completion status */
58			/* */
59			/* CALLS */
60			/* */
61			/* _gx_widget_font_get Obtain the font */
62			/* _gx_multi_line_text_view_string_total_rows_computer */
63			/* Compute the number of rows */
64			/* for the text view text */
65			/* _gx_utility_rectangle_resize Offset rectangle */
66			/* */
67			/* CALLED BY */
68			/* */
69			/* GUIX Internal Code */
70			/* */
71			/* RELEASE HISTORY */
72			/* */
73			/* DATE NAME DESCRIPTION */
74			/* */
75			/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
76			/* 09-30-2020 Kenneth Maxwell Modified comment(s), */
77			/* resulting in version 6.1 */
78			/* */
79			/**************************************************************************/
80		4512	UINT _gx_multi_line_text_view_scroll_info_get(GX_MULTI_LINE_TEXT_VIEW text_view, ULONG style, GX_SCROLL_INFO info)
81			{
82			GX_RECTANGLE client;
83			GX_VALUE line_height;
84			INT text_height;
85			INT value;
86			INT shift;
87			GX_FONT *font;
88
89			GX_PARAMETER_NOT_USED(style);
90
91			/* Get font. */
92		4512	_gx_widget_font_get((GX_WIDGET *)text_view, text_view -> gx_multi_line_text_view_font_id, &font);
93
94	✓✓	4512	if (!font)
95			{
96		15	return GX_FAILURE;
97			}
98
99	✓✓	4497	if (text_view -> gx_multi_line_text_view_line_index_old)
100			{
101			/* Calculate text total rows. */
102		42	_gx_multi_line_text_view_string_total_rows_compute(text_view);
103			}
104
105			/* Pickup text height. */
106		4497	line_height = (GX_VALUE)(font -> gx_font_line_height + text_view -> gx_multi_line_text_view_line_space);
107		4497	text_height = (INT)(line_height * (INT)text_view -> gx_multi_line_text_view_text_total_rows);
108
109		4497	client = text_view -> gx_window_client;
110
111	✓✓	4497	if (text_view -> gx_multi_line_text_view_whitespace)
112			{
113			/* Offset client bounding box. */
114		3527	_gx_utility_rectangle_resize(&client, (GX_VALUE)(-text_view -> gx_multi_line_text_view_whitespace));
115			}
116
117		4497	info -> gx_scroll_minimum = client.gx_rectangle_top;
118		4497	info -> gx_scroll_maximum = info -> gx_scroll_minimum + text_height - 1;
119		4497	info -> gx_scroll_visible = (GX_VALUE)(client.gx_rectangle_bottom - client.gx_rectangle_top + 1);
120
121	✓✓	4497	if (text_height < info -> gx_scroll_visible)
122			{
123		202	info -> gx_scroll_maximum = info -> gx_scroll_minimum + info -> gx_scroll_visible - 1;
124			}
125
126		4497	shift = text_view -> gx_multi_line_text_view_text_scroll_shift;
127		4497	value = client.gx_rectangle_top - shift;
128
129	✓✓	4497	if (value < info -> gx_scroll_minimum)
130			{
131		8	value = info -> gx_scroll_minimum;
132			}
133	✓✓	4489	else if (value > info -> gx_scroll_maximum - info -> gx_scroll_visible + 1)
134			{
135		121	value = info -> gx_scroll_maximum - info -> gx_scroll_visible + 1;
136			}
137
138		4497	shift = client.gx_rectangle_top - value;
139
140	✓✓	4497	if (shift != text_view -> gx_multi_line_text_view_text_scroll_shift)
141			{
142			/* Update shift value. */
143		129	text_view -> gx_multi_line_text_view_text_scroll_shift = shift;
144			}
145
146		4497	info -> gx_scroll_value = value;
147		4497	info -> gx_scroll_increment = line_height;
148
149		4497	if (text_view -> gx_multi_line_text_view_text_total_rows >
150	✓✓	4497	text_view -> gx_multi_line_text_view_cache_size)
151			{
152		3997	_gx_multi_line_text_view_line_cache_update((GX_MULTI_LINE_TEXT_VIEW *)text_view);
153			}
154
155		4497	return GX_SUCCESS;
156			}
157