src/declarative/qml/qdeclarativevmemetaobject_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef QDECLARATIVEVMEMETAOBJECT_P_H
       
    43 #define QDECLARATIVEVMEMETAOBJECT_P_H
       
    44 
       
    45 //
       
    46 //  W A R N I N G
       
    47 //  -------------
       
    48 //
       
    49 // This file is not part of the Qt API.  It exists purely as an
       
    50 // implementation detail.  This header file may change from version to
       
    51 // version without notice, or even be removed.
       
    52 //
       
    53 // We mean it.
       
    54 //
       
    55 
       
    56 #include "qdeclarative.h"
       
    57 
       
    58 #include <QtCore/QMetaObject>
       
    59 #include <QtCore/QBitArray>
       
    60 #include <QtCore/QPair>
       
    61 #include <QtGui/QColor>
       
    62 #include <QtCore/QDate>
       
    63 #include <QtCore/qlist.h>
       
    64 #include <QtCore/qdebug.h>
       
    65 
       
    66 #include <private/qobject_p.h>
       
    67 
       
    68 #include "private/qdeclarativeguard_p.h"
       
    69 #include "private/qdeclarativecompiler_p.h"
       
    70 #include "private/qdeclarativecontext_p.h"
       
    71 
       
    72 QT_BEGIN_NAMESPACE
       
    73 
       
    74 #define QML_ALIAS_FLAG_PTR 0x00000001
       
    75 
       
    76 struct QDeclarativeVMEMetaData
       
    77 {
       
    78     short propertyCount;
       
    79     short aliasCount;
       
    80     short signalCount;
       
    81     short methodCount;
       
    82 
       
    83     struct AliasData {
       
    84         int contextIdx;
       
    85         int propertyIdx;
       
    86         int flags;
       
    87     };
       
    88     
       
    89     struct PropertyData {
       
    90         int propertyType;
       
    91     };
       
    92 
       
    93     struct MethodData {
       
    94         int parameterCount;
       
    95         int bodyOffset;
       
    96         int bodyLength;
       
    97         int lineNumber;
       
    98     };
       
    99 
       
   100     PropertyData *propertyData() const {
       
   101         return (PropertyData *)(((const char *)this) + sizeof(QDeclarativeVMEMetaData));
       
   102     }
       
   103 
       
   104     AliasData *aliasData() const {
       
   105         return (AliasData *)(propertyData() + propertyCount);
       
   106     }
       
   107 
       
   108     MethodData *methodData() const {
       
   109         return (MethodData *)(aliasData() + aliasCount);
       
   110     }
       
   111 };
       
   112 
       
   113 class QDeclarativeVMEVariant;
       
   114 class QDeclarativeRefCount;
       
   115 class QDeclarativeVMEMetaObject : public QAbstractDynamicMetaObject
       
   116 {
       
   117 public:
       
   118     QDeclarativeVMEMetaObject(QObject *obj, const QMetaObject *other, const QDeclarativeVMEMetaData *data,
       
   119                      QDeclarativeCompiledData *compiledData);
       
   120     ~QDeclarativeVMEMetaObject();
       
   121 
       
   122     void registerInterceptor(int index, int valueIndex, QDeclarativePropertyValueInterceptor *interceptor);
       
   123     QScriptValue vmeMethod(int index);
       
   124     QScriptValue vmeProperty(int index);
       
   125     void setVMEProperty(int index, const QScriptValue &);
       
   126 
       
   127 protected:
       
   128     virtual int metaCall(QMetaObject::Call _c, int _id, void **_a);
       
   129 
       
   130 private:
       
   131     QObject *object;
       
   132     QDeclarativeCompiledData *compiledData;
       
   133     QDeclarativeGuardedContextData ctxt;
       
   134 
       
   135     const QDeclarativeVMEMetaData *metaData;
       
   136     int propOffset;
       
   137     int methodOffset;
       
   138 
       
   139     QDeclarativeVMEVariant *data;
       
   140 
       
   141     QBitArray aConnected;
       
   142     QBitArray aInterceptors;
       
   143     QHash<int, QPair<int, QDeclarativePropertyValueInterceptor*> > interceptors;
       
   144 
       
   145     QScriptValue *methods;
       
   146     QScriptValue method(int);
       
   147 
       
   148     QScriptValue readVarProperty(int);
       
   149     QVariant readVarPropertyAsVariant(int);
       
   150     void writeVarProperty(int, const QScriptValue &);
       
   151     void writeVarProperty(int, const QVariant &);
       
   152 
       
   153     QAbstractDynamicMetaObject *parent;
       
   154 
       
   155     void listChanged(int);
       
   156     class List : public QList<QObject*>
       
   157     {
       
   158     public:
       
   159         List(int lpi) : notifyIndex(lpi) {}
       
   160         int notifyIndex;
       
   161     };
       
   162     QList<List> listProperties;
       
   163 
       
   164     static void list_append(QDeclarativeListProperty<QObject> *, QObject *);
       
   165     static int list_count(QDeclarativeListProperty<QObject> *);
       
   166     static QObject *list_at(QDeclarativeListProperty<QObject> *, int);
       
   167     static void list_clear(QDeclarativeListProperty<QObject> *);
       
   168 };
       
   169 
       
   170 QT_END_NAMESPACE
       
   171 
       
   172 #endif // QDECLARATIVEVMEMETAOBJECT_P_H