/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <com/sun/star/lang/EventObject.hpp>
#include <osl/mutex.hxx>
/* Definition of the DisambiguationHelper class */
namespace canvas
{
/** Base class, initializing its own baseclass with m_aMutex.
This is necessary to make the CanvasBase , GraphicDeviceBase ,
etc . classes freely combinable - letting them perform this
initialization would prohibit deriving e . g . CanvasBase from
GraphicDeviceBase .
On top of that , disambiguates XEventListener : : disposing and
WeakComponentImplHelper : : disposing .
Having two virtual methods with the same name , and not
overriding them in every derived class , will hide one of
them . Later trying to override the same method , will generate
a new vtable slot , and lead to very hard to spot errors .
*/
template < class Base > class DisambiguationHelper : public Base
{
protected :
/** Construct DisambiguationHelper
This method is the whole purpose of this template :
initializing a base class with the provided m_aMutex
member ( the WeakComponentImplHelper templates need that ,
as they require the lifetime of the mutex to extend
theirs ) .
*/
DisambiguationHelper() :
Base( m_aMutex )
{
}
virtual void disposeThis()
{}
/// @throws css::uno::RuntimeException
virtual void disposeEventSource( const css::lang::EventObject& )
{}
mutable ::osl::Mutex m_aMutex;
private :
virtual void SAL_CALL disposing() override
{ disposeThis(); }
virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override
{ disposeEventSource(Source); }
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=87 H=99 G=93
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
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