QDeclarativePropertyChangesParser Class Reference

#include <qdeclarativepropertychanges_p.h>

Inheritance diagram for QDeclarativePropertyChangesParser:

Public Functions
virtual QByteArray	compile (const QList< QDeclarativeCustomParserProperty > &)
void	compileList (QList< QPair< QByteArray, QVariant > > &list, const QByteArray &pre, const QDeclarativeCustomParserProperty &prop)
	QDeclarativePropertyChangesParser ()
virtual void	setCustomData (QObject *, const QByteArray &)
Public Functions inherited from QDeclarativeCustomParser
void	clearErrors ()
QList< QDeclarativeError >	errors () const
Flags	flags () const
	QDeclarativeCustomParser ()
	QDeclarativeCustomParser (Flags f)
virtual	~QDeclarativeCustomParser ()

Additional Inherited Members
Public Types inherited from QDeclarativeCustomParser
enum	Flag { NoFlag = 0x00000000, AcceptsAttachedProperties = 0x00000001 }
Protected Functions inherited from QDeclarativeCustomParser
void	error (const QString &description)
	Reports an error with the given description. More...
void	error (const QDeclarativeCustomParserProperty &, const QString &description)
	Reports an error in parsing prop, with the given description. More...
void	error (const QDeclarativeCustomParserNode &, const QString &description)
	Reports an error in parsing node, with the given description. More...
int	evaluateEnum (const QByteArray &) const
	If script is a simply enum expression (eg. More...
const QMetaObject *	resolveType (const QByteArray &) const
	Resolves name to a type, or 0 if it is not a type. More...
QDeclarativeBinding::Identifier	rewriteBinding (const QString &, const QByteArray &)
	Rewrites expression and returns an identifier that can be used to construct the binding later. More...

Detailed Description

Definition at line 93 of file qdeclarativepropertychanges_p.h.

Constructors and Destructors

QDeclarativePropertyChangesParser()

QDeclarativePropertyChangesParser::QDeclarativePropertyChangesParser ( )

inline

Definition at line 96 of file qdeclarativepropertychanges_p.h.

    : QDeclarativeCustomParser(AcceptsAttachedProperties) {}

Functions

compile()

QByteArray QDeclarativePropertyChangesParser::compile ( const QList< QDeclarativeCustomParserProperty > &  props )

virtual

Implements QDeclarativeCustomParser.

Definition at line 278 of file qdeclarativepropertychanges.cpp.

{
    QList<QPair<QByteArray, QVariant> > data;
    for(int ii = 0; ii < props.count(); ++ii)
        compileList(data, QByteArray(), props.at(ii));

    QByteArray rv;
    QDataStream ds(&rv, QIODevice::WriteOnly);

    ds << data.count();
    for(int ii = 0; ii < data.count(); ++ii) {
        QDeclarativeParser::Variant v = qvariant_cast<QDeclarativeParser::Variant>(data.at(ii).second);
        QVariant var;
        bool isScript = v.isScript();
        QDeclarativeBinding::Identifier id = 0;
        switch(v.type()) {
        case QDeclarativeParser::Variant::Boolean:
            var = QVariant(v.asBoolean());
            break;
        case QDeclarativeParser::Variant::Number:
            var = QVariant(v.asNumber());
            break;
        case QDeclarativeParser::Variant::String:
            var = QVariant(v.asString());
            break;
        case QDeclarativeParser::Variant::Invalid:
        case QDeclarativeParser::Variant::Script:
            var = QVariant(v.asScript());
            {
                // Pre-rewrite the expression
                QString expression = v.asScript();
                id = rewriteBinding(expression, data.at(ii).first); //### recreates the AST, which is slow
            }
            break;
        }

        ds << QString::fromUtf8(data.at(ii).first) << isScript << var;
        if (isScript)
            ds << id;
    }

    return rv;
}

compileList()

void QDeclarativePropertyChangesParser::compileList	(	QList< QPair< QByteArray, QVariant > > &	list,
		const QByteArray &	pre,
		const QDeclarativeCustomParserProperty &	prop
	)

Definition at line 250 of file qdeclarativepropertychanges.cpp.

{
    QByteArray propName = pre + prop.name();

    QList<QVariant> values = prop.assignedValues();
    for (int ii = 0; ii < values.count(); ++ii) {
        const QVariant &value = values.at(ii);

        if (value.userType() == qMetaTypeId<QDeclarativeCustomParserNode>()) {
            error(qvariant_cast<QDeclarativeCustomParserNode>(value),
                  QDeclarativePropertyChanges::tr("PropertyChanges does not support creating state-specific objects."));
            continue;
        } else if(value.userType() == qMetaTypeId<QDeclarativeCustomParserProperty>()) {

            QDeclarativeCustomParserProperty prop =
                qvariant_cast<QDeclarativeCustomParserProperty>(value);
            QByteArray pre = propName + '.';
            compileList(list, pre, prop);

        } else {
            list << qMakePair(propName, value);
        }
    }
}

setCustomData()

void QDeclarativePropertyChangesParser::setCustomData ( QObject *  object, const QByteArray &  data  )

virtual

Implements QDeclarativeCustomParser.

Definition at line 368 of file qdeclarativepropertychanges.cpp.

{
    QDeclarativePropertyChangesPrivate *p =
        static_cast<QDeclarativePropertyChangesPrivate *>(QObjectPrivate::get(object));
    p->data = data;
    p->decoded = false;
}

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The documentation for this class was generated from the following files:

• /src/declarative/util/qdeclarativepropertychanges_p.h
• /src/declarative/util/qdeclarativepropertychanges.cpp