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/* -*- 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 .
*/
#ifndef INCLUDED_VCL_INC_CONTROLCACHEKEY_HXX
#define INCLUDED_VCL_INC_CONTROLCACHEKEY_HXX
#include <tools/gen.hxx>
#include <vcl/salnativewidgets.hxx>
#include <boost/functional/hash.hpp>
class ControlCacheKey
{
public:
ControlType mnType;
ControlPart mnPart;
ControlState mnState;
Size maSize;
ControlCacheKey(ControlType nType, ControlPart nPart, ControlState nState, const Size& rSize)
: mnType(nType)
, mnPart(nPart)
, mnState(nState)
, maSize(rSize)
{}
bool operator==(ControlCacheKey const& aOther) const
{
return mnType == aOther.mnType
&& mnPart == aOther.mnPart
&& mnState == aOther.mnState
&& maSize.Width() == aOther.maSize.Width()
&& maSize.Height() == aOther.maSize.Height();
}
bool canCacheControl() const
{
switch(mnType)
{
case ControlType::Checkbox:
case ControlType::Radiobutton:
case ControlType::ListNode:
case ControlType::Slider:
case ControlType::Progress:
// FIXME: these guys have complex state hidden in ImplControlValue
// structs which affects rendering, needs to be a and needs to be
// part of the key to our cache.
case ControlType::Spinbox:
case ControlType::SpinButtons:
case ControlType::TabItem:
return false;
case ControlType::Menubar:
if (mnPart == ControlPart::Entire)
return false;
break;
default:
break;
}
return true;
}
};
struct ControlCacheHashFunction
{
std::size_t operator()(ControlCacheKey const& aCache) const
{
std::size_t seed = 0;
boost::hash_combine(seed, aCache.mnType);
boost::hash_combine(seed, aCache.mnPart);
boost::hash_combine(seed, aCache.mnState);
boost::hash_combine(seed, aCache.maSize.Width());
boost::hash_combine(seed, aCache.maSize.Height());
return seed;
}
};
#endif // INCLUDED_VCL_INC_CONTROLCACHEKEY_HXX
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