blob: c029c2069f0f38c4e082370fb994fcdf33cd7fbb (
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
|
// Copyright (C) 2016 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 QQMLEXPRESSION_H
#define QQMLEXPRESSION_H
#include <QtQml/qqmlerror.h>
#include <QtQml/qqmlscriptstring.h>
#include <QtCore/qobject.h>
#include <QtCore/qvariant.h>
QT_BEGIN_NAMESPACE
class QString;
class QQmlEngine;
class QQmlContext;
class QQmlExpressionPrivate;
class QQmlContextData;
class Q_QML_EXPORT QQmlExpression : public QObject
{
Q_OBJECT
public:
QQmlExpression();
QQmlExpression(QQmlContext *, QObject *, const QString &, QObject * = nullptr);
explicit QQmlExpression(const QQmlScriptString &, QQmlContext * = nullptr, QObject * = nullptr, QObject * = nullptr);
~QQmlExpression() override;
QQmlEngine *engine() const;
QQmlContext *context() const;
QString expression() const;
void setExpression(const QString &);
bool notifyOnValueChanged() const;
void setNotifyOnValueChanged(bool);
QString sourceFile() const;
int lineNumber() const;
int columnNumber() const;
void setSourceLocation(const QString &fileName, int line, int column = 0);
QObject *scopeObject() const;
bool hasError() const;
void clearError();
QQmlError error() const;
QVariant evaluate(bool *valueIsUndefined = nullptr);
Q_SIGNALS:
void valueChanged();
private:
QQmlExpression(QQmlExpressionPrivate &dd, QObject *parent);
Q_DISABLE_COPY(QQmlExpression)
Q_DECLARE_PRIVATE(QQmlExpression)
friend class QQmlDebugger;
friend class QQmlContext;
};
QT_END_NAMESPACE
#endif // QQMLEXPRESSION_H
|
