blob: d9aecf9d9d43589b13c9ac9c17cfd7b92e3bc96a (
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
|
// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQUICKDRAGAXIS_P_H
#define QQUICKDRAGAXIS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQml/qqml.h>
#include <QtQml/qqmlproperty.h>
#include <private/qtquickglobal_p.h>
QT_BEGIN_NAMESPACE
class QQuickItem;
class QQuickPointerHandler;
class Q_QUICK_EXPORT QQuickDragAxis : public QObject
{
Q_OBJECT
Q_PROPERTY(qreal minimum READ minimum WRITE setMinimum NOTIFY minimumChanged)
Q_PROPERTY(qreal maximum READ maximum WRITE setMaximum NOTIFY maximumChanged)
Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
Q_PROPERTY(qreal activeValue READ activeValue NOTIFY activeValueChanged REVISION(6, 5))
QML_NAMED_ELEMENT(DragAxis)
QML_ADDED_IN_VERSION(2, 12)
QML_UNCREATABLE("DragAxis is only available as a grouped property of DragHandler or PinchHandler.")
public:
QQuickDragAxis(QQuickPointerHandler *handler, const QString &propertyName,
qreal initValue = 0);
qreal minimum() const { return m_minimum; }
void setMinimum(qreal minimum);
qreal maximum() const { return m_maximum; }
void setMaximum(qreal maximum);
bool enabled() const { return m_enabled; }
void setEnabled(bool enabled);
qreal activeValue() const { return m_activeValue; }
qreal persistentValue() const { return m_accumulatedValue; }
protected:
void onActiveChanged(bool active, qreal initActiveValue);
qreal targetValue();
void updateValue(qreal activeValue, qreal accumulatedValue, qreal delta = 0);
Q_SIGNALS:
void minimumChanged();
void maximumChanged();
void enabledChanged();
Q_REVISION(6, 5) void activeValueChanged(qreal delta);
private:
qreal m_minimum = std::numeric_limits<qreal>::lowest();
qreal m_maximum = std::numeric_limits<qreal>::max();
qreal m_startValue = 0;
qreal m_activeValue = 0;
qreal m_accumulatedValue = 0;
QString m_propertyName;
bool m_enabled = true;
friend class QQuickDragHandler;
friend class QQuickPinchHandler;
};
QT_END_NAMESPACE
#endif // QQUICKDRAGAXIS_P_H
|
