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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the QtDeclarative module of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #include "private/qdeclarativeproxymetaobject_p.h"

    43 

    44 QT_BEGIN_NAMESPACE

    45 

    46 QDeclarativeProxyMetaObject::QDeclarativeProxyMetaObject(QObject *obj, QList<ProxyData> *mList)

    47 : metaObjects(mList), proxies(0), parent(0), object(obj)

    48 {

    49     *static_cast<QMetaObject *>(this) = *metaObjects->first().metaObject;

    50 

    51     QObjectPrivate *op = QObjectPrivate::get(obj);

    52     if (op->metaObject)

    53         parent = static_cast<QAbstractDynamicMetaObject*>(op->metaObject);

    54 

    55     op->metaObject = this;

    56 }

    57 

    58 QDeclarativeProxyMetaObject::~QDeclarativeProxyMetaObject()

    59 {

    60     if (parent)

    61         delete parent;

    62     parent = 0;

    63 

    64     if (proxies)

    65         delete [] proxies;

    66     proxies = 0;

    67 }

    68 

    69 int QDeclarativeProxyMetaObject::metaCall(QMetaObject::Call c, int id, void **a)

    70 {

    71     if ((c == QMetaObject::ReadProperty ||

    72         c == QMetaObject::WriteProperty) &&

    73             id >= metaObjects->last().propertyOffset) {

    74 

    75         for (int ii = 0; ii < metaObjects->count(); ++ii) {

    76             const ProxyData &data = metaObjects->at(ii);

    77             if (id >= data.propertyOffset) {

    78                 if (!proxies) {

    79                     proxies = new QObject*[metaObjects->count()];

    80                     ::memset(proxies, 0, 

    81                              sizeof(QObject *) * metaObjects->count());

    82                 }

    83 

    84                 if (!proxies[ii]) {

    85                     QObject *proxy = data.createFunc(object);

    86                     const QMetaObject *metaObject = proxy->metaObject();

    87                     proxies[ii] = proxy;

    88 

    89                     int localOffset = data.metaObject->methodOffset();

    90                     int methodOffset = metaObject->methodOffset();

    91                     int methods = metaObject->methodCount() - methodOffset;

    92 

    93                     // ### - Can this be done more optimally?

    94                     for (int jj = 0; jj < methods; ++jj) {

    95                         QMetaMethod method = 

    96                             metaObject->method(jj + methodOffset);

    97                         if (method.methodType() == QMetaMethod::Signal)

    98                             QMetaObject::connect(proxy, methodOffset + jj,

    99                                                  object, localOffset + jj);

   100                     }

   101                 }

   102 

   103                 int proxyOffset = proxies[ii]->metaObject()->propertyOffset();

   104                 int proxyId = id - data.propertyOffset + proxyOffset;

   105 

   106                 return proxies[ii]->qt_metacall(c, proxyId, a);

   107             }

   108         }

   109     } else if (c == QMetaObject::InvokeMetaMethod &&

   110                id >= metaObjects->last().methodOffset) {

   111         QMetaMethod m = object->metaObject()->method(id);

   112         if (m.methodType() == QMetaMethod::Signal) {

   113             QMetaObject::activate(object, id, a);

   114             return -1;

   115         }

   116     }

   117 

   118     if (parent)

   119         return parent->metaCall(c, id, a);

   120     else

   121         return object->qt_metacall(c, id, a);

   122 }

   123 

   124 QT_END_NAMESPACE