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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_SD_SOURCE_UI_SLIDESORTER_INC_VIEW_SLSFONTPROVIDER_HXX
#define INCLUDED_SD_SOURCE_UI_SLIDESORTER_INC_VIEW_SLSFONTPROVIDER_HXX
#include "tools/SdGlobalResourceContainer.hxx"
#include <boost/shared_ptr.hpp>
#include <vcl/mapmod.hxx>
namespace vcl { class Font; }
namespace sd { namespace slidesorter { namespace view {
/** This simple singleton class provides fonts that are scaled so that they
have a fixed height on the given device regardless of its map mode.
*/
class FontProvider
: public SdGlobalResource
{
public:
typedef ::boost::shared_ptr<vcl::Font> SharedFontPointer;
/** Return the single instance of this class. Throws a RuntimeException
when no instance can be created.
*/
static FontProvider& Instance (void);
/** Call this method to tell an object to release its currently used
font. The next call to GetFont() will then create a new one.
Typically called after a DataChange event when for instance a system
font has been modified.
*/
void Invalidate (void);
private:
static FontProvider* mpInstance;
/** The font that was created by a previous call to GetFont(). It is
replaced by another one only when GetFont() is called with a device
with a different map mode or by a call to Invalidate().
*/
SharedFontPointer maFont;
/** The mape mode for which maFont was created.
*/
MapMode maMapMode;
FontProvider (void);
virtual ~FontProvider (void);
// Copy constructor is not implemented.
FontProvider (const FontProvider&);
// Assignment operator is not implemented.
FontProvider& operator= (const FontProvider&);
};
} } } // end of namespace ::sd::slidesorter::view
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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