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158 | /* -*- 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 .
*/
#include "swstylemanager.hxx"
#include <svl/stylepool.hxx>
#include <istyleaccess.hxx>
#include <unordered_map>
#include <osl/diagnose.h>
typedef std::unordered_map< OUString,
std::shared_ptr<SfxItemSet> > SwStyleNameCache;
namespace {
class SwStyleCache
{
SwStyleNameCache mMap;
public:
SwStyleCache() {}
void addStyleName( const std::shared_ptr<SfxItemSet>& pStyle )
{ mMap[ StylePool::nameOf(pStyle) ] = pStyle; }
void addCompletePool( StylePool& rPool );
std::shared_ptr<SfxItemSet> getByName( const OUString& rName ) { return mMap[rName]; }
};
}
void SwStyleCache::addCompletePool( StylePool& rPool )
{
std::unique_ptr<IStylePoolIteratorAccess> pIter = rPool.createIterator();
std::shared_ptr<SfxItemSet> pStyle = pIter->getNext();
while( pStyle )
{
OUString aName( StylePool::nameOf(pStyle) );
mMap[ aName ] = pStyle;
pStyle = pIter->getNext();
}
}
namespace {
class SwStyleManager : public IStyleAccess
{
StylePool aAutoCharPool;
StylePool aAutoParaPool;
std::unique_ptr<SwStyleCache> mpCharCache;
std::unique_ptr<SwStyleCache> mpParaCache;
public:
// accept empty item set for ignorable paragraph items.
explicit SwStyleManager( SfxItemSet const * pIgnorableParagraphItems )
: aAutoCharPool(),
aAutoParaPool( pIgnorableParagraphItems )
{}
virtual std::shared_ptr<SfxItemSet> getAutomaticStyle( const SfxItemSet& rSet,
IStyleAccess::SwAutoStyleFamily eFamily,
const OUString* pParentName = nullptr ) override;
virtual std::shared_ptr<SfxItemSet> getByName( const OUString& rName,
IStyleAccess::SwAutoStyleFamily eFamily ) override;
virtual void getAllStyles( std::vector<std::shared_ptr<SfxItemSet>> &rStyles,
IStyleAccess::SwAutoStyleFamily eFamily ) override;
virtual std::shared_ptr<SfxItemSet> cacheAutomaticStyle( const SfxItemSet& rSet,
SwAutoStyleFamily eFamily ) override;
virtual void clearCaches() override;
};
}
std::unique_ptr<IStyleAccess> createStyleManager( SfxItemSet const * pIgnorableParagraphItems )
{
return std::make_unique<SwStyleManager>( pIgnorableParagraphItems );
}
void SwStyleManager::clearCaches()
{
mpCharCache.reset();
mpParaCache.reset();
}
std::shared_ptr<SfxItemSet> SwStyleManager::getAutomaticStyle( const SfxItemSet& rSet,
IStyleAccess::SwAutoStyleFamily eFamily,
const OUString* pParentName )
{
StylePool& rAutoPool = eFamily == IStyleAccess::AUTO_STYLE_CHAR ? aAutoCharPool : aAutoParaPool;
return rAutoPool.insertItemSet( rSet, pParentName );
}
std::shared_ptr<SfxItemSet> SwStyleManager::cacheAutomaticStyle( const SfxItemSet& rSet,
IStyleAccess::SwAutoStyleFamily eFamily )
{
StylePool& rAutoPool = eFamily == IStyleAccess::AUTO_STYLE_CHAR ? aAutoCharPool : aAutoParaPool;
std::shared_ptr<SfxItemSet> pStyle = rAutoPool.insertItemSet( rSet );
if (eFamily == IStyleAccess::AUTO_STYLE_CHAR)
{
if (!mpCharCache)
mpCharCache.reset(new SwStyleCache());
mpCharCache->addStyleName( pStyle );
}
else
{
if (!mpParaCache)
mpParaCache.reset(new SwStyleCache());
mpParaCache->addStyleName( pStyle );
}
return pStyle;
}
std::shared_ptr<SfxItemSet> SwStyleManager::getByName( const OUString& rName,
IStyleAccess::SwAutoStyleFamily eFamily )
{
StylePool& rAutoPool = eFamily == IStyleAccess::AUTO_STYLE_CHAR ? aAutoCharPool : aAutoParaPool;<--- The scope of the variable 'rAutoPool' can be reduced. [+]The scope of the variable 'rAutoPool' can be reduced. Warning: Be careful when fixing this message, especially when there are inner loops. Here is an example where cppcheck will write that the scope for 'i' can be reduced:
void f(int x)
{
int i = 0;
if (x) {
// it's safe to move 'int i = 0;' here
for (int n = 0; n < 10; ++n) {
// it is possible but not safe to move 'int i = 0;' here
do_something(&i);
}
}
}
When you see this message it is always safe to reduce the variable scope 1 level.
std::unique_ptr<SwStyleCache> &rpCache = eFamily == IStyleAccess::AUTO_STYLE_CHAR ? mpCharCache : mpParaCache;
if( !rpCache )
rpCache.reset(new SwStyleCache());
std::shared_ptr<SfxItemSet> pStyle = rpCache->getByName( rName );
if( !pStyle )
{
// Ok, ok, it's allowed to ask for uncached styles (from UNO) but it should not be done
// during loading a document
OSL_FAIL( "Don't ask for uncached styles" );
rpCache->addCompletePool( rAutoPool );
pStyle = rpCache->getByName( rName );
}
return pStyle;
}
void SwStyleManager::getAllStyles( std::vector<std::shared_ptr<SfxItemSet>> &rStyles,
IStyleAccess::SwAutoStyleFamily eFamily )
{
StylePool& rAutoPool = eFamily == IStyleAccess::AUTO_STYLE_CHAR ? aAutoCharPool : aAutoParaPool;
// setup <StylePool> iterator, which skips unused styles and ignorable items
std::unique_ptr<IStylePoolIteratorAccess> pIter = rAutoPool.createIterator( true, true );
std::shared_ptr<SfxItemSet> pStyle = pIter->getNext();
while( pStyle )
{
rStyles.push_back( pStyle );
pStyle = pIter->getNext();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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