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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_SW_SOURCE_CORE_INC_FNTCACHE_HXX
#define INCLUDED_SW_SOURCE_CORE_INC_FNTCACHE_HXX
#include <sal/config.h>
#include <cstdint>
#include <map>
#include <vcl/font.hxx>
#include <vcl/vclptr.hxx>
#include <vcl/vcllayout.hxx>
#include <vcl/outdev.hxx>
#include "swcache.hxx"
#include "TextFrameIndex.hxx"
class FontMetric;
class SwFntObj;
class SwDrawTextInfo;
class SwViewShell;
class SwSubFont;
class MapMode;
class SwFntCache : public SwCache
{
public:
SwFntCache() : SwCache(50
#ifdef DBG_UTIL
, OString(RTL_CONSTASCII_STRINGPARAM("Global Font-Cache pFntCache"))
#endif
) {}
inline SwFntObj *First( );
static inline SwFntObj *Next( SwFntObj *pFntObj);
void Flush();
};
/// Clears the pre-calculated text glyphs in all SwFntObj instances.
void SwClearFntCacheTextGlyphs();
// Font cache, global variable, created/destroyed in txtinit.cxx
extern SwFntCache *pFntCache;
extern SwFntObj *pLastFont;
/**
* Defines a substring on a given output device, to be used as an std::map<>
* key.
*/
struct SwTextGlyphsKey
{
VclPtr<OutputDevice> m_pOutputDevice;
OUString m_aText;
sal_Int32 m_nIndex;
sal_Int32 m_nLength;
};
bool operator<(const SwTextGlyphsKey& l, const SwTextGlyphsKey& r);
class SwFntObj : public SwCacheObj
{
friend class SwFntAccess;
friend void InitCore();
friend void FinitCore();
vcl::Font m_aFont;
vcl::Font *m_pScrFont;
vcl::Font *m_pPrtFont;
VclPtr<OutputDevice> m_pPrinter;
sal_uInt16 m_nGuessedLeading;
sal_uInt16 m_nExtLeading;
sal_uInt16 m_nScrAscent;
sal_uInt16 m_nPrtAscent;
sal_uInt16 m_nScrHeight;
sal_uInt16 m_nPrtHeight;
sal_uInt16 m_nPropWidth;
sal_uInt16 m_nZoom;
bool m_bSymbol : 1;
bool m_bPaintBlank : 1;
/// Cache of already calculated layout glyphs.
std::map<SwTextGlyphsKey, SalLayoutGlyphs> m_aTextGlyphs;
static long nPixWidth;
static MapMode *pPixMap;
public:
SwFntObj( const SwSubFont &rFont, std::uintptr_t nFontCacheId,
SwViewShell const *pSh );
virtual ~SwFntObj() override;
vcl::Font *GetScrFont() { return m_pScrFont; }
vcl::Font& GetFont() { return m_aFont; }
const vcl::Font& GetFont() const { return m_aFont; }
sal_uInt16 GetGuessedLeading() const { return m_nGuessedLeading; }
sal_uInt16 GetExternalLeading() const { return m_nExtLeading; }
sal_uInt16 GetFontAscent( const SwViewShell *pSh, const OutputDevice& rOut );
sal_uInt16 GetFontHeight( const SwViewShell *pSh, const OutputDevice& rOut );
sal_uInt16 GetFontLeading( const SwViewShell *pSh, const OutputDevice& rOut );
void GuessLeading( const SwViewShell& rSh, const FontMetric& rMet );
void SetDevFont( const SwViewShell *pSh, OutputDevice& rOut );
OutputDevice* GetPrt() const { return m_pPrinter; }
sal_uInt16 GetZoom() const { return m_nZoom; }
sal_uInt16 GetPropWidth() const { return m_nPropWidth; }
bool IsSymbol() const { return m_bSymbol; }
std::map<SwTextGlyphsKey, SalLayoutGlyphs>& GetTextGlyphs() { return m_aTextGlyphs; }
void DrawText( SwDrawTextInfo &rInf );
/// determine the TextSize (of the printer)
Size GetTextSize( SwDrawTextInfo &rInf );
TextFrameIndex GetModelPositionForViewPoint(SwDrawTextInfo &rInf);
void CreateScrFont( const SwViewShell& rSh, const OutputDevice& rOut );
void CreatePrtFont( const OutputDevice& rOut );
};
SwFntObj *SwFntCache::First( )
{
return static_cast<SwFntObj *>(SwCache::First());
}
SwFntObj *SwFntCache::Next( SwFntObj *pFntObj)
{
return static_cast<SwFntObj *>(SwCache::Next( pFntObj ));
}
class SwFntAccess : public SwCacheAccess
{
SwViewShell const *m_pShell;
protected:
virtual SwCacheObj *NewObj( ) override;
public:
SwFntAccess( const void*& rnFontCacheId, sal_uInt16 &rIndex, const void *pOwner,
SwViewShell const *pShell,
bool bCheck = false );
SwFntObj* Get() { return static_cast<SwFntObj*>( SwCacheAccess::Get() ); }
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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