| -rw-r--r-- | library/qcom.h | 90 |
1 files changed, 89 insertions, 1 deletions
diff --git a/library/qcom.h b/library/qcom.h index 8c0fa60..9972d8f 100644 --- a/library/qcom.h +++ b/library/qcom.h @@ -1,83 +1,171 @@ /********************************************************************** ** Copyright (C) 2000-2002 Trolltech AS. All rights reserved. ** ** This file is part of the Qtopia Environment. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #ifndef QCOM_H #define QCOM_H #include <qstringlist.h> #ifndef QT_NO_COMPONENT #include <qpe/quuid.h> #define QRESULT unsigned long #define QS_OK (QRESULT)0x00000000 #define QS_FALSE (QRESULT)0x00000001 #define QE_NOTIMPL (QRESULT)0x80000001 #define QE_OUTOFMEMORY (QRESULT)0x80000002 #define QE_INVALIDARG (QRESULT)0x80000003 #define QE_NOINTERFACE (QRESULT)0x80000004 #define QE_NOCOMPONENT (QRESULT)0x80000005 // {1D8518CD-E8F5-4366-99E8-879FD7E482DE} #ifndef IID_QUnknown #define IID_QUnknown QUuid(0x1d8518cd, 0xe8f5, 0x4366, 0x99, 0xe8, 0x87, 0x9f, 0xd7, 0xe4, 0x82, 0xde) #endif struct Q_EXPORT QUnknownInterface { virtual QRESULT queryInterface( const QUuid&, QUnknownInterface** ) = 0; virtual ulong addRef() = 0; virtual ulong release() = 0; }; // {D16111D4-E1E7-4C47-8599-24483DAE2E07} #ifndef IID_QLibrary #define IID_QLibrary QUuid( 0xd16111d4, 0xe1e7, 0x4c47, 0x85, 0x99, 0x24, 0x48, 0x3d, 0xae, 0x2e, 0x07) #endif struct Q_EXPORT QLibraryInterface : public QUnknownInterface { virtual bool init() = 0; virtual void cleanup() = 0; virtual bool canUnload() const = 0; }; #define Q_CREATE_INSTANCE( IMPLEMENTATION ) \ IMPLEMENTATION *i = new IMPLEMENTATION; \ QUnknownInterface* iface = 0; \ i->queryInterface( IID_QUnknown, &iface ); \ return iface; +template <class T> +class QInterfacePtr +{ +public: + QInterfacePtr():iface(0){} + + QInterfacePtr( T* i) { + if ( (iface = i) ) + iface->addRef(); + } + + QInterfacePtr(const QInterfacePtr<T> &p) { + if ( (iface = p.iface) ) + iface->addRef(); + } + + ~QInterfacePtr() { + if ( iface ) + iface->release(); + } + + QInterfacePtr<T> &operator=(const QInterfacePtr<T> &p) { + if ( iface != p.iface ) { + if ( iface ) + iface->release(); + if ( (iface = p.iface) ) + iface->addRef(); + } + return *this; + } + + QInterfacePtr<T> &operator=(T* i) { + if (iface != i ) { + if ( iface ) + iface->release(); + if ( (iface = i) ) + iface->addRef(); + } + return *this; + } + + bool operator==( const QInterfacePtr<T> &p ) const { return iface == p.iface; } + + bool operator!= ( const QInterfacePtr<T>& p ) const { return !( *this == p ); } + + bool isNull() const { return !iface; } + + T* operator->() const { return iface; } + + T& operator*() const { return *iface; } + + operator T*() const { return iface; } + + QUnknownInterface** operator &() const { + if( iface ) + iface->release(); + return (QUnknownInterface**)&iface; + } + + T** operator &() { + if ( iface ) + iface->release(); + return &iface; + } + +private: + T* iface; +}; + + +// internal class that wraps an initialized ulong +struct Q_EXPORT QtULong +{ + QtULong() : ref( 0 ) { } + operator unsigned long () const { return ref; } + unsigned long& operator++() { return ++ref; } + unsigned long operator++( int ) { return ref++; } + unsigned long& operator--() { return --ref; } + unsigned long operator--( int ) { return ref--; } + + unsigned long ref; +}; + #define Q_EXPORT_INTERFACE() \ extern "C" QUnknownInterface* ucm_instantiate() -#define Q_REFCOUNT ulong addRef() {return ref++;}ulong release() {if(!--ref){delete this;return 0;}return ref;} +#define Q_REFCOUNT \ +private: \ + QtULong qtrefcount; \ +public: \ + ulong addRef() {return qtrefcount++;} \ + ulong release() {if(!--qtrefcount){delete this;return 0;}return qtrefcount;} #else // QT_NO_COMPONENT struct Q_EXPORT QUnknownInterface { }; #endif // QT_NO_COMPONENT #endif // QCOM_H |