QDeclarativeScriptString Class
The QDeclarativeScriptString class encapsulates a script and its context. More...
| Header: | #include <QDeclarativeScriptString> |
| Since: | Qt 4.7 |
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.
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