libreoffice/vcl/source/helper/lazydelete.cxx

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 * Copyright 2008 by Sun Microsystems, Inc.
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 * $RCSfile: lazydelete.cxx,v $
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#ifndef LAZYDELETE_CXX
#define LAZYDELETE_CXX

#include <vcl/window.hxx>
#include <vcl/menu.hxx>
#include <vcl/lazydelete.hxx>

namespace vcl {

LazyDeletorBase::LazyDeletorBase()
{
}

LazyDeletorBase::~LazyDeletorBase()
{
}

// instantiate instance pointers for LazyDeletor<Window,Menu>
template<> LazyDeletor<Window>* LazyDeletor<Window>::s_pOneInstance = NULL;
template<> LazyDeletor<Menu>* LazyDeletor<Menu>::s_pOneInstance = NULL;

// a list for all LazyeDeletor<T> singletons
static std::vector< LazyDeletorBase* > lcl_aDeletors;

void LazyDelete::addDeletor( LazyDeletorBase* i_pDel )
{
    lcl_aDeletors.push_back( i_pDel );
}

void LazyDelete::flush()
{
    unsigned int nCount = lcl_aDeletors.size();
    for( unsigned int i = 0; i < nCount; i++ )
        delete lcl_aDeletors[i];
    lcl_aDeletors.clear();
}

// specialized is_less function for Window
template<> bool LazyDeletor<Window>::is_less( Window* left, Window* right )
{
    return (left != right && right->IsChild( left, TRUE )) ? true : false;
}

// specialized is_less function for Menu
template<> bool LazyDeletor<Menu>::is_less( Menu* left, Menu* right )
{
    while( left && left != right )
        left = left->ImplGetStartedFrom();
    return left != NULL;
}

}

#endif