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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_scroll_thumb_event_process.c	Lines:	51	51	100.0 %
Date:	2024-12-05 08:52:37	Branches:	23	23	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                                                        */
/**                                                                       */
/**   Scroll Management (Scroll Thumb)                                    */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_system.h"
#include "gx_widget.h"
#include "gx_scrollbar.h"
#include "gx_button.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_scroll_thumb_event_process                      PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function processes events for a scrollbar thumb button         */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    scroll_thumb                          Scroll thumb widget control   */
/*                                            block                       */
/*    event                                 Pointer to event to process   */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_button_event_process              Default button event process  */
/*    _gx_system_input_capture              Default widget event process  */
/*    _gx_system_input_release              Direct all input events       */
/*    _gx_widget_shift                      Shift the widget              */
/*    _gx_widget_height_get                 Get the height of widget      */
/*    _gx_scroll_thumb_shift_limit          Limit the travel of the       */
/*                                            scrollbar thumb button      */
/*    _gx_widget_width_get                  Get the width of widget       */
/*    [_gx_widget_event_process_function]   Widget event process routine  */
/*    _gx_widget_event_process              Default widget event process  */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*    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_scroll_thumb_event_process(GX_SCROLL_THUMB *thumb, GX_EVENT *event_ptr)
{
GX_EVENT   newevent;
GX_WIDGET *widget = (GX_WIDGET *)thumb;
UINT       status;
INT        shift;
GX_VALUE   widget_height;
GX_VALUE   widget_width;

    /* Default status to success.  */
    status =  GX_SUCCESS;

    /* Process relative to the type of event.  */
    switch (event_ptr -> gx_event_type)
    {
    case GX_EVENT_SHOW:
        status = _gx_widget_event_process(widget, event_ptr);
        if (thumb -> gx_scroll_thumb_pixelmap)
        {
            if (_gx_widget_transparent_pixelmap_detect(widget, thumb -> gx_scroll_thumb_pixelmap))
            {
                _gx_widget_status_add(widget, GX_STATUS_TRANSPARENT);
            }
        }
        break;

    case GX_EVENT_PEN_DOWN:
        _gx_system_input_capture(widget);

        thumb -> gx_scroll_thumb_drag_mode = GX_TRUE;

        if (widget -> gx_widget_style & GX_SCROLLBAR_VERTICAL)
        {
            thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y;
        }
        else
        {
            thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x;
        }
        break;

    case GX_EVENT_PEN_UP:
        if (widget ->gx_widget_status & GX_STATUS_OWNS_INPUT)
        {
            _gx_system_input_release(widget);
        }
        break;

    case GX_EVENT_PEN_DRAG:
        if (thumb -> gx_widget_style & GX_SCROLLBAR_VERTICAL)
        {
            if (event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y != thumb -> gx_scroll_thumb_start_drag)
            {
                shift = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y - thumb -> gx_scroll_thumb_start_drag;
                shift = _gx_scroll_thumb_shift_limit(thumb, shift);

                if (shift)
                {
                    _gx_widget_shift(widget, 0, (GX_VALUE)shift, GX_TRUE);
                    thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y;
                    newevent.gx_event_type = GX_EVENT_VERTICAL_SCROLL;
                    newevent.gx_event_payload.gx_event_intdata[0] = widget -> gx_widget_size.gx_rectangle_top;

                    _gx_widget_height_get(widget, &widget_height);
                    newevent.gx_event_payload.gx_event_intdata[1] = (INT)widget_height;

                    newevent.gx_event_sender = GX_ID_SCROLL_THUMB;

                    /* send the scroll event to my parent scrollbar */
                    thumb -> gx_widget_parent -> gx_widget_event_process_function(thumb -> gx_widget_parent, &newevent);
                }
            }
        }
        else
        {
            if (event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x != thumb -> gx_scroll_thumb_start_drag)
            {
                shift = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x - thumb -> gx_scroll_thumb_start_drag;
                shift = _gx_scroll_thumb_shift_limit(thumb, shift);

                if (shift)
                {
                    _gx_widget_shift(widget, (GX_VALUE)shift, 0, GX_TRUE);
                    thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x;
                    newevent.gx_event_type = GX_EVENT_HORIZONTAL_SCROLL;
                    newevent.gx_event_payload.gx_event_intdata[0] = widget -> gx_widget_size.gx_rectangle_left;

                    _gx_widget_width_get(widget, &widget_width);
                    newevent.gx_event_payload.gx_event_intdata[1] = (INT)widget_width;
                    newevent.gx_event_sender = GX_ID_SCROLL_THUMB;

                    /* send the scroll event to my parent scrollbar */
                    widget -> gx_widget_parent -> gx_widget_event_process_function(thumb -> gx_widget_parent, &newevent);
                }
            }
        }
        break;

    default:

        /* Call the widget default processing.  */
        status =  _gx_widget_event_process(widget, event_ptr);
    }

    /* Return completion status.  */
    return(status);
}



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			/** Scroll Management (Scroll Thumb) */
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_widget.h"
29			#include "gx_scrollbar.h"
30			#include "gx_button.h"
31
32			/**************************************************************************/
33			/* */
34			/* FUNCTION RELEASE */
35			/* */
36			/* _gx_scroll_thumb_event_process PORTABLE C */
37			/* 6.1 */
38			/* AUTHOR */
39			/* */
40			/* Kenneth Maxwell, Microsoft Corporation */
41			/* */
42			/* DESCRIPTION */
43			/* */
44			/* This function processes events for a scrollbar thumb button */
45			/* */
46			/* INPUT */
47			/* */
48			/* scroll_thumb Scroll thumb widget control */
49			/* block */
50			/* event Pointer to event to process */
51			/* */
52			/* OUTPUT */
53			/* */
54			/* status Completion status */
55			/* */
56			/* CALLS */
57			/* */
58			/* _gx_button_event_process Default button event process */
59			/* _gx_system_input_capture Default widget event process */
60			/* _gx_system_input_release Direct all input events */
61			/* _gx_widget_shift Shift the widget */
62			/* _gx_widget_height_get Get the height of widget */
63			/* _gx_scroll_thumb_shift_limit Limit the travel of the */
64			/* scrollbar thumb button */
65			/* _gx_widget_width_get Get the width of widget */
66			/* [_gx_widget_event_process_function] Widget event process routine */
67			/* _gx_widget_event_process Default widget event process */
68			/* */
69			/* CALLED BY */
70			/* */
71			/* Application Code */
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		4430	UINT _gx_scroll_thumb_event_process(GX_SCROLL_THUMB thumb, GX_EVENT event_ptr)
84			{
85			GX_EVENT newevent;
86		4430	GX_WIDGET widget = (GX_WIDGET )thumb;
87			UINT status;
88			INT shift;
89			GX_VALUE widget_height;
90			GX_VALUE widget_width;
91
92			/* Default status to success. */
93		4430	status = GX_SUCCESS;
94
95			/* Process relative to the type of event. */
96	✓✓✓✓ ✓	4430	switch (event_ptr -> gx_event_type)
97			{
98		450	case GX_EVENT_SHOW:
99		450	status = _gx_widget_event_process(widget, event_ptr);
100	✓✓	450	if (thumb -> gx_scroll_thumb_pixelmap)
101			{
102	✓✓	19	if (_gx_widget_transparent_pixelmap_detect(widget, thumb -> gx_scroll_thumb_pixelmap))
103			{
104		2	_gx_widget_status_add(widget, GX_STATUS_TRANSPARENT);
105			}
106			}
107		450	break;
108
109		1256	case GX_EVENT_PEN_DOWN:
110		1256	_gx_system_input_capture(widget);
111
112		1256	thumb -> gx_scroll_thumb_drag_mode = GX_TRUE;
113
114	✓✓	1256	if (widget -> gx_widget_style & GX_SCROLLBAR_VERTICAL)
115			{
116		515	thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y;
117			}
118			else
119			{
120		741	thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x;
121			}
122		1256	break;
123
124		1049	case GX_EVENT_PEN_UP:
125	✓✓	1049	if (widget ->gx_widget_status & GX_STATUS_OWNS_INPUT)
126			{
127		1048	_gx_system_input_release(widget);
128			}
129		1049	break;
130
131		1257	case GX_EVENT_PEN_DRAG:
132	✓✓	1257	if (thumb -> gx_widget_style & GX_SCROLLBAR_VERTICAL)
133			{
134	✓✓	511	if (event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y != thumb -> gx_scroll_thumb_start_drag)
135			{
136		510	shift = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y - thumb -> gx_scroll_thumb_start_drag;
137		510	shift = _gx_scroll_thumb_shift_limit(thumb, shift);
138
139	✓✓	510	if (shift)
140			{
141		476	_gx_widget_shift(widget, 0, (GX_VALUE)shift, GX_TRUE);
142		476	thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_y;
143		476	newevent.gx_event_type = GX_EVENT_VERTICAL_SCROLL;
144		476	newevent.gx_event_payload.gx_event_intdata[0] = widget -> gx_widget_size.gx_rectangle_top;
145
146		476	_gx_widget_height_get(widget, &widget_height);
147		476	newevent.gx_event_payload.gx_event_intdata[1] = (INT)widget_height;
148
149		476	newevent.gx_event_sender = GX_ID_SCROLL_THUMB;
150
151			/* send the scroll event to my parent scrollbar */
152		476	thumb -> gx_widget_parent -> gx_widget_event_process_function(thumb -> gx_widget_parent, &newevent);
153			}
154			}
155			}
156			else
157			{
158	✓✓	746	if (event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x != thumb -> gx_scroll_thumb_start_drag)
159			{
160		744	shift = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x - thumb -> gx_scroll_thumb_start_drag;
161		744	shift = _gx_scroll_thumb_shift_limit(thumb, shift);
162
163	✓✓	744	if (shift)
164			{
165		743	_gx_widget_shift(widget, (GX_VALUE)shift, 0, GX_TRUE);
166		743	thumb -> gx_scroll_thumb_start_drag = event_ptr -> gx_event_payload.gx_event_pointdata.gx_point_x;
167		743	newevent.gx_event_type = GX_EVENT_HORIZONTAL_SCROLL;
168		743	newevent.gx_event_payload.gx_event_intdata[0] = widget -> gx_widget_size.gx_rectangle_left;
169
170		743	_gx_widget_width_get(widget, &widget_width);
171		743	newevent.gx_event_payload.gx_event_intdata[1] = (INT)widget_width;
172		743	newevent.gx_event_sender = GX_ID_SCROLL_THUMB;
173
174			/* send the scroll event to my parent scrollbar */
175		743	widget -> gx_widget_parent -> gx_widget_event_process_function(thumb -> gx_widget_parent, &newevent);
176			}
177			}
178			}
179		1257	break;
180
181		418	default:
182
183			/* Call the widget default processing. */
184		418	status = _gx_widget_event_process(widget, event_ptr);
185			}
186
187			/* Return completion status. */
188		4430	return(status);
189			}
190