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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickpointerdevicehandler_p.h"
#include <private/qquickitem_p.h>
#include <QMouseEvent>
#include <QDebug>
QT_BEGIN_NAMESPACE
/*!
An intermediate class (not registered as a QML type)
for handlers which allow filtering based on device type,
pointer type, or device-specific buttons (such as mouse or stylus buttons).
*/
QQuickPointerDeviceHandler::QQuickPointerDeviceHandler(QObject *parent)
: QQuickPointerHandler(parent)
, m_acceptedDevices(QQuickPointerDevice::AllDevices)
, m_acceptedPointerTypes(QQuickPointerDevice::AllPointerTypes)
, m_acceptedModifiers(Qt::KeyboardModifierMask)
{
}
QQuickPointerDeviceHandler::~QQuickPointerDeviceHandler()
{
}
void QQuickPointerDeviceHandler::setAcceptedDevices(QQuickPointerDevice::DeviceTypes acceptedDevices)
{
if (m_acceptedDevices == acceptedDevices)
return;
m_acceptedDevices = acceptedDevices;
emit acceptedDevicesChanged();
}
void QQuickPointerDeviceHandler::setAcceptedPointerTypes(QQuickPointerDevice::PointerTypes acceptedPointerTypes)
{
if (m_acceptedPointerTypes == acceptedPointerTypes)
return;
m_acceptedPointerTypes = acceptedPointerTypes;
emit acceptedPointerTypesChanged();
}
/*!
\qmlproperty int PointerDeviceHandler::acceptedModifiers
If this property is set, it will require the given keyboard modifiers to
be pressed in order to react to pointer events, and otherwise ignore them.
If this property is set to \c Qt.KeyboardModifierMask (the default value),
then the PointerHandler ignores the modifier keys.
For example, an \l [QML] Item could have two handlers of the same type,
one of which is enabled only if the required keyboard modifiers are
pressed:
\qml
Item {
TapHandler {
acceptedModifiers: Qt.ControlModifier
onTapped: console.log("control-tapped")
}
TapHandler {
acceptedModifiers: Qt.NoModifier
onTapped: console.log("tapped")
}
}
\endqml
*/
void QQuickPointerDeviceHandler::setAcceptedModifiers(Qt::KeyboardModifiers acceptedModifiers)
{
if (m_acceptedModifiers == acceptedModifiers)
return;
m_acceptedModifiers = acceptedModifiers;
emit acceptedModifiersChanged();
}
bool QQuickPointerDeviceHandler::wantsPointerEvent(QQuickPointerEvent *event)
{
if (!QQuickPointerHandler::wantsPointerEvent(event))
return false;
qCDebug(lcPointerHandlerDispatch) << objectName()
<< "checking device type" << m_acceptedDevices
<< "pointer type" << m_acceptedPointerTypes
<< "modifiers" << m_acceptedModifiers;
if ((event->device()->type() & m_acceptedDevices) == 0)
return false;
if ((event->device()->pointerType() & m_acceptedPointerTypes) == 0)
return false;
if (m_acceptedModifiers != Qt::KeyboardModifierMask && event->modifiers() != m_acceptedModifiers)
return false;
return true;
}
QT_END_NAMESPACE
|
