Qt 4.8: QDeclarativeScriptString Class Reference

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# QDeclarativeScriptString Class Reference

The QDeclarativeScriptString class encapsulates a script and its context. More...

     #include <QDeclarativeScriptString>

This class was introduced in Qt 4.7.

- List of all members, including inherited members

## Public Functions

| QDeclarativeScriptString ()
| QDeclarativeScriptString ( const QDeclarativeScriptString & other )
QDeclarativeContext * | context () const
QObject * | scopeObject () const
QString | script () const
void | setContext ( QDeclarativeContext * context )
void | setScopeObject ( QObject * object )
void | setScript ( const QString & script )
QDeclarativeScriptString & | operator= ( const QDeclarativeScriptString & other )

## Detailed Description

The QDeclarativeScriptString class encapsulates a script and its context.

QDeclarativeScriptString is used to create QObject properties that accept a script "assignment" from QML.

Normally, the following QML would result in a binding being established for the `script` property; i.e. `script` would be assigned the value obtained from running `myObj.value = Math.max(myValue, 100)`

     MyType {
         script: myObj.value = Math.max(myValue, 100)
     }

If instead the property had a type of QDeclarativeScriptString, the script itself -- myObj.value = Math.max(myValue, 100) -- would be passed to the `script` property and the class could choose how to handle it. Typically, the class will evaluate the script at some later time using a QDeclarativeExpression.

     QDeclarativeExpression expr(scriptString.context(), scriptString.script(), scriptStr.scopeObject());
     expr.value();

See also QDeclarativeExpression.

## Member Function Documentation

### QDeclarativeScriptString::QDeclarativeScriptString ()

Constructs an empty instance.

### QDeclarativeScriptString::QDeclarativeScriptString ( const QDeclarativeScriptString & other )

Copies other.

### QDeclarativeContext * QDeclarativeScriptString::context () const

Returns the context for the script.

See also setContext().

### QObject * QDeclarativeScriptString::scopeObject () const

Returns the scope object for the script.

See also setScopeObject().

### QString QDeclarativeScriptString::script () const

Returns the script text.

See also setScript().

### void QDeclarativeScriptString::setContext ( QDeclarativeContext * context )

Sets the context for the script.

See also context().

### void QDeclarativeScriptString::setScopeObject ( QObject * object )

Sets the scope object for the script.

See also scopeObject().

### void QDeclarativeScriptString::setScript ( const QString & script )

Sets the script text.

See also script().

### QDeclarativeScriptString & QDeclarativeScriptString::operator= ( const QDeclarativeScriptString & other )

Assigns other to this.