MWidgetModel implements a base class for MVC. More...

Inheritance diagram for MWidgetModel:

Collaboration diagram for MWidgetModel:

Signals
void	modified (const QList< const char * > &members)
Public Member Functions
void	beginTransaction ()
void	commitTransaction ()
void	increaseReferenceCount ()
void	decreaseReferenceCount ()
Protected Member Functions
void	memberModified (const char *const member)
Properties
QString	objectName
QString	styleName
MTheme::ViewType	viewType
QPointF	position
QSizeF	size
qreal	opacity
M::Position	layoutPosition
Friends
M_CORE_EXPORT QDataStream &	operator<< (QDataStream &stream, const MWidgetModel &model)
M_CORE_EXPORT QDataStream &	operator>> (QDataStream &stream, MWidgetModel &model)

Detailed Description

MWidgetModel implements a base class for MVC.

Definition at line 110 of file corelib/widgets/mwidgetmodel.h.

Member Function Documentation

void MWidgetModel::beginTransaction ( )

Definition at line 54 of file mwidgetmodel.cpp.

{
    if (d_ptr->transactionInProgress) {
        mWarning("MWidgetModel") << "beginTransaction() - transaction already started!";
        return;
    }

    d_ptr->transactionInProgress = true;
}

void MWidgetModel::commitTransaction ( )

Definition at line 64 of file mwidgetmodel.cpp.

{
    if (d_ptr->transactionInProgress == false) {
        mWarning("MWidgetModel") << "commitTransaction() - no transaction ongoing!";
        return;
    }

    d_ptr->transactionInProgress = false;
    emit modified(d_ptr->modifiedMembers);
    d_ptr->modifiedMembers.clear();
}

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void MWidgetModel::decreaseReferenceCount ( )

Definition at line 81 of file mwidgetmodel.cpp.

{
    --d_ptr->referenceCount;
    if (d_ptr->referenceCount == 0)
        delete this;
}

void MWidgetModel::increaseReferenceCount ( )

Definition at line 76 of file mwidgetmodel.cpp.

{
    ++d_ptr->referenceCount;
}

void MWidgetModel::memberModified ( const char *const member ) [protected]

Definition at line 43 of file mwidgetmodel.cpp.

{
    if (d_ptr->transactionInProgress) {
        d_ptr->modifiedMembers.enqueue(member);
    } else {
        QList<const char *> list;
        list.append(member);
        emit modified(list);
    }
}

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void MWidgetModel::modified ( const QList< const char * > & members ) [signal]

Friends And Related Function Documentation

M_CORE_EXPORT QDataStream& operator<<	(	QDataStream &	stream,
		const MWidgetModel &	model
	)			`[friend]`

Definition at line 88 of file mwidgetmodel.cpp.

{
    const QMetaObject *metaObject = model.metaObject();
    QString hashString = metaObject->className();

    int propertyCount = metaObject->propertyCount();
    for (int i = 0; i != propertyCount; ++i) {
        hashString += metaObject->property(i).name();
        hashString += metaObject->property(i).typeName();
    }

    uint hash = qHash(hashString);
    stream << hash;
    for (int i = 0; i != propertyCount; ++i) {
        stream << metaObject->property(i).read(&model);
    }

    return stream;
}

M_CORE_EXPORT QDataStream& operator>>	(	QDataStream &	stream,
		MWidgetModel &	model
	)			`[friend]`

Definition at line 108 of file mwidgetmodel.cpp.

{
    const QMetaObject *metaObject = model.metaObject();
    QString hashString = metaObject->className();

    int propertyCount = metaObject->propertyCount();
    for (int i = 0; i != propertyCount; ++i) {
        hashString += metaObject->property(i).name();
        hashString += metaObject->property(i).typeName();
    }

    uint realHash = qHash(hashString);
    uint hash;
    stream >> hash;
    if (hash != realHash) {
        qFatal("Deserializing of %s failed from QDataStream, Q_PROPERTY table doesn't match!", metaObject->className());
    }

    for (int i = 0; i != propertyCount; ++i) {
        QVariant v;
        stream >> v;
        metaObject->property(i).write(&model, v);
    }

    return stream;
}