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declarative
qml
qdeclarativeexpression.h
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Alternatively, this file may be used under the terms of the GNU
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****************************************************************************/
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#ifndef QDECLARATIVEEXPRESSION_H
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#define QDECLARATIVEEXPRESSION_H
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#include <QtDeclarative/qdeclarativeerror.h>
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#include <QtCore/qobject.h>
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#include <QtCore/qvariant.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE
(Declarative)
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class
QString
;
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class
QDeclarativeRefCount
;
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class
QDeclarativeEngine
;
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class
QDeclarativeContext
;
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class
QDeclarativeExpressionPrivate
;
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class
QDeclarativeContextData
;
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class
QScriptValue
;
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class
Q_DECLARATIVE_EXPORT
QDeclarativeExpression
:
public
QObject
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{
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Q_OBJECT
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public
:
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QDeclarativeExpression
();
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QDeclarativeExpression
(
QDeclarativeContext
*,
QObject
*,
const
QString
&,
QObject
* = 0);
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virtual
~
QDeclarativeExpression
();
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QDeclarativeEngine
*engine()
const
;
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QDeclarativeContext
*context()
const
;
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QString
expression()
const
;
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void
setExpression(
const
QString
&);
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bool
notifyOnValueChanged()
const
;
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void
setNotifyOnValueChanged(
bool
);
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QString
sourceFile()
const
;
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int
lineNumber()
const
;
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void
setSourceLocation(
const
QString
&
fileName
,
int
line);
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QObject
*scopeObject()
const
;
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bool
hasError()
const
;
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void
clearError();
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QDeclarativeError
error
()
const
;
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QVariant
evaluate(
bool
*valueIsUndefined = 0);
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Q_SIGNALS
:
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void
valueChanged();
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protected
:
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QDeclarativeExpression
(
QDeclarativeContextData
*,
QObject
*,
const
QString
&,
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QDeclarativeExpressionPrivate
&dd);
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QDeclarativeExpression
(
QDeclarativeContextData
*,
QObject
*,
const
QScriptValue
&,
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QDeclarativeExpressionPrivate
&dd);
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QDeclarativeExpression
(
QDeclarativeContextData
*,
void
*,
QDeclarativeRefCount
*rc,
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QObject
*me,
const
QString
&,
int
,
QDeclarativeExpressionPrivate
&dd);
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private
:
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QDeclarativeExpression
(
QDeclarativeContextData
*,
QObject
*,
const
QString
&);
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Q_DISABLE_COPY
(
QDeclarativeExpression
)
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Q_DECLARE_PRIVATE
(
QDeclarativeExpression
)
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Q_PRIVATE_SLOT
(d_func(),
void
_q_notify())
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friend
class
QDeclarativeDebugger;
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friend
class
QDeclarativeContext
;
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friend
class
QDeclarativeVME
;
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QDECLARATIVEEXPRESSION_H
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QVariant
The QVariant class acts like a union for the most common Qt data types.
Definition:
qvariant.h:92
QDeclarativeVME
Definition:
qdeclarativevme_p.h:72
QT_END_NAMESPACE
#define QT_END_NAMESPACE
This macro expands to.
Definition:
qglobal.h:90
QT_MODULE
#define QT_MODULE(x)
Definition:
qglobal.h:2783
QT_BEGIN_HEADER
#define QT_BEGIN_HEADER
Definition:
qglobal.h:136
QDeclarativeExpressionPrivate
Definition:
qdeclarativeexpression_p.h:175
error
#define error(msg)
Definition:
qabstractduration.cpp:58
Q_DISABLE_COPY
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition:
qglobal.h:2523
Q_PRIVATE_SLOT
#define Q_PRIVATE_SLOT(d, signature)
Definition:
qobjectdefs.h:73
QString
The QString class provides a Unicode character string.
Definition:
qstring.h:83
QObject
The QObject class is the base class of all Qt objects.
Definition:
qobject.h:111
Q_SIGNALS
#define Q_SIGNALS
Definition:
qobjectdefs.h:72
QT_BEGIN_NAMESPACE
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition:
qglobal.h:89
QDeclarativeRefCount
Definition:
qdeclarativerefcount_p.h:64
QDeclarativeError
The QDeclarativeError class encapsulates a QML error.
Definition:
qdeclarativeerror.h:56
QDeclarativeContextData
Definition:
qdeclarativecontext_p.h:110
Q_OBJECT
#define Q_OBJECT
Definition:
qobjectdefs.h:157
Q_DECLARATIVE_EXPORT
#define Q_DECLARATIVE_EXPORT
Definition:
qglobal.h:1454
QDeclarativeEngine
The QDeclarativeEngine class provides an environment for instantiating QML components.
Definition:
qdeclarativeengine.h:70
QDeclarativeContext
The QDeclarativeContext class defines a context within a QML engine.
Definition:
qdeclarativecontext.h:64
Q_DECLARE_PRIVATE
#define Q_DECLARE_PRIVATE(Class)
Definition:
qglobal.h:2467
QDeclarativeExpression
The QDeclarativeExpression class evaluates JavaScript in a QML context.
Definition:
qdeclarativeexpression.h:63
class
#define class
Definition:
qapplication_x11.cpp:92
QT_END_HEADER
#define QT_END_HEADER
Definition:
qglobal.h:137
QScriptValue
The QScriptValue class acts as a container for the Qt Script data types.
Definition:
qscriptvalue.h:57
fileName
static QString fileName(const QString &fileUrl)
Definition:
qjsdebuggeragent.cpp:199
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