blob: af12303dbddbc397ee733c5c32f2e25c34238b0b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "touchwidget.h"
#include <QApplication>
#include <QtEvents>
#include <QTimer>
#include <QTouchEvent>
void TouchWidget::reset()
{
acceptTouchBegin
= acceptTouchUpdate
= acceptTouchEnd
= seenTouchBegin
= seenTouchUpdate
= seenTouchEnd
= closeWindowOnTouchEnd
= acceptMousePress
= acceptMouseMove
= acceptMouseRelease
= seenMousePress
= seenMouseMove
= seenMouseRelease
= closeWindowOnMouseRelease
= false;
touchPointCount = 0;
}
bool TouchWidget::event(QEvent *event)
{
switch (event->type()) {
case QEvent::TouchBegin:
if (seenTouchBegin) qWarning("TouchBegin: already seen a TouchBegin");
if (seenTouchUpdate) qWarning("TouchBegin: TouchUpdate cannot happen before TouchBegin");
if (seenTouchEnd) qWarning("TouchBegin: TouchEnd cannot happen before TouchBegin");
seenTouchBegin = !seenTouchBegin && !seenTouchUpdate && !seenTouchEnd;
touchPointCount = qMax(touchPointCount, static_cast<QTouchEvent *>(event)->touchPoints().count());
if (acceptTouchBegin) {
event->accept();
return true;
}
break;
case QEvent::TouchUpdate:
if (!seenTouchBegin) qWarning("TouchUpdate: have not seen TouchBegin");
if (seenTouchEnd) qWarning("TouchUpdate: TouchEnd cannot happen before TouchUpdate");
seenTouchUpdate = seenTouchBegin && !seenTouchEnd;
touchPointCount = qMax(touchPointCount, static_cast<QTouchEvent *>(event)->touchPoints().count());
if (acceptTouchUpdate) {
event->accept();
return true;
}
break;
case QEvent::TouchEnd:
if (!seenTouchBegin) qWarning("TouchEnd: have not seen TouchBegin");
if (seenTouchEnd) qWarning("TouchEnd: already seen a TouchEnd");
seenTouchEnd = seenTouchBegin && !seenTouchEnd;
touchPointCount = qMax(touchPointCount, static_cast<QTouchEvent *>(event)->touchPoints().count());
if (closeWindowOnTouchEnd)
window()->close();
if (acceptTouchEnd) {
event->accept();
return true;
}
break;
case QEvent::MouseButtonPress:
case QEvent::MouseButtonDblClick:
seenMousePress = true;
if (acceptMousePress) {
event->accept();
return true;
}
break;
case QEvent::MouseMove:
seenMouseMove = true;
if (acceptMouseMove) {
event->accept();
return true;
}
break;
case QEvent::MouseButtonRelease:
seenMouseRelease = true;
if (closeWindowOnMouseRelease)
window()->close();
if (acceptMouseRelease) {
event->accept();
return true;
}
break;
default:
break;
}
return QWidget::event(event);
}
|
