1/***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21#ifndef SYNCABLEOBJECT_H
22#define SYNCABLEOBJECT_H
23
24#include <QDataStream>
25#include <QMetaType>
26#include <QObject>
27#include <QVariantMap>
28
29#include "signalproxy.h"
30
31#define SYNCABLE_OBJECT static const int _classNameOffset__;
32#define INIT_SYNCABLE_OBJECT(x) const int x ::_classNameOffset__ = QByteArray(staticMetaObject.className()).length() + 2;
33
34#ifdef Q_CC_MSVC
35# define SYNC(...) sync_call__(SignalProxy::Server, (__FUNCTION__ + _classNameOffset__), __VA_ARGS__);
36# define REQUEST(...) sync_call__(SignalProxy::Client, (__FUNCTION__ + _classNameOffset__), __VA_ARGS__);
37#else
38# define SYNC(...) sync_call__(SignalProxy::Server, __func__, __VA_ARGS__);
39# define REQUEST(...) sync_call__(SignalProxy::Client, __func__, __VA_ARGS__);
40#endif //Q_CC_MSVC
41
42#define SYNC_OTHER(x, ...) sync_call__(SignalProxy::Server, #x, __VA_ARGS__);
43#define REQUEST_OTHER(x, ...) sync_call__(SignalProxy::Client, #x, __VA_ARGS__);
44
45#define ARG(x) const_cast<void *>(reinterpret_cast<const void *>(&x))
46#define NO_ARG 0
47
48class SyncableObject : public QObject
49{
50 SYNCABLE_OBJECT
51 Q_OBJECT
52
53public:
54 SyncableObject(QObject *parent = 0);
55 SyncableObject(const QString &objectName, QObject *parent = 0);
56 SyncableObject(const SyncableObject &other, QObject *parent = 0);
57 ~SyncableObject();
58
59 //! Stores the object's state into a QVariantMap.
60 /** The default implementation takes dynamic properties as well as getters that have
61 * names starting with "init" and stores them in a QVariantMap. Override this method in
62 * derived classes in order to store the object state in a custom form.
63 * \note This is used by SignalProxy to transmit the state of the object to clients
64 * that request the initial object state. Later updates use a different mechanism
65 * and assume that the state is completely covered by properties and init* getters.
66 * DO NOT OVERRIDE THIS unless you know exactly what you do!
67 *
68 * \return The object's state in a QVariantMap
69 */
70 virtual QVariantMap toVariantMap();
71
72 //! Initialize the object's state from a given QVariantMap.
73 /** \see toVariantMap() for important information concerning this method.
74 */
75 virtual void fromVariantMap(const QVariantMap &properties);
76
77 virtual bool isInitialized() const;
78
79 virtual const QMetaObject *syncMetaObject() const { return metaObject(); };
80
81 inline void setAllowClientUpdates(bool allow) { _allowClientUpdates = allow; }
82 inline bool allowClientUpdates() const { return _allowClientUpdates; }
83
84public slots:
85 virtual void setInitialized();
86 void requestUpdate(const QVariantMap &properties);
87 virtual void update(const QVariantMap &properties);
88
89protected:
90 void sync_call__(SignalProxy::ProxyMode modeType, const char *funcname, ...) const;
91
92 void renameObject(const QString &newName);
93 SyncableObject &operator=(const SyncableObject &other);
94
95signals:
96 void initDone();
97 void updatedRemotely();
98 void updated();
99
100private:
101 void synchronize(SignalProxy *proxy);
102 void stopSynchronize(SignalProxy *proxy);
103
104 bool setInitValue(const QString &property, const QVariant &value);
105
106 bool _initialized;
107 bool _allowClientUpdates;
108
109 QList<SignalProxy *> _signalProxies;
110
111 friend class SignalProxy;
112};
113
114
115#endif
116