acd40306b3
Change-Id: Ifaa37246e79678aa0c548b9ca8a9faf8036b9195 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/164804 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
152 lines
5.4 KiB
C++
152 lines
5.4 KiB
C++
/* -*- 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 .
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <sal/config.h>
|
|
|
|
#include <memory>
|
|
#include <freetype/config/ftheader.h>
|
|
#include FT_FREETYPE_H
|
|
#include FT_GLYPH_H
|
|
|
|
#include <vcl/dllapi.h>
|
|
#include <vcl/outdev.hxx>
|
|
|
|
#include <fontattributes.hxx>
|
|
#include <font/FontMetricData.hxx>
|
|
#include <glyphid.hxx>
|
|
|
|
#include <unordered_map>
|
|
|
|
class FreetypeFont;
|
|
class FreetypeFontFile;
|
|
class FreetypeFontInstance;
|
|
class FreetypeFontInfo;
|
|
class FontConfigFontOptions;
|
|
namespace vcl::font
|
|
{
|
|
class PhysicalFontCollection;
|
|
}
|
|
class FreetypeFont;
|
|
class SvpGcpHelper;
|
|
|
|
namespace basegfx { class B2DPolyPolygon; }
|
|
namespace vcl { struct FontCapabilities; }
|
|
|
|
/**
|
|
* The FreetypeManager caches various aspects of Freetype fonts
|
|
*
|
|
* It mainly consists of two std::unordered_map lists, which hold the items of the cache.
|
|
*
|
|
* They form kind of a tree, with FreetypeFontFile as the roots, referenced by multiple FreetypeFontInfo
|
|
* entries, which are referenced by the FreetypeFont items.
|
|
*
|
|
* All of these items have reference counters, but these don't control the items life-cycle, but that of
|
|
* the managed resources.
|
|
*
|
|
* The respective resources are:
|
|
* FreetypeFontFile = holds the mmapped font file, as long as it's used by any FreetypeFontInfo.
|
|
* FreetypeFontInfo = holds the FT_FaceRec_ object, as long as it's used by any FreetypeFont.
|
|
* FreetypeFont = holds the FT_SizeRec_ and is owned by a FreetypeFontInstance
|
|
*
|
|
* FreetypeFontInfo therefore is embedded in the Freetype subclass of PhysicalFontFace.
|
|
* FreetypeFont is owned by FreetypeFontInstance, the Freetype subclass of LogicalFontInstance.
|
|
*
|
|
* Nowadays there is not really a reason to have separate files for the classes, as the FreetypeManager
|
|
* is just about handling of Freetype based fonts, not some abstract glyphs.
|
|
**/
|
|
class VCL_DLLPUBLIC FreetypeManager final
|
|
{
|
|
public:
|
|
SAL_DLLPRIVATE ~FreetypeManager();
|
|
|
|
static FreetypeManager& get();
|
|
|
|
void AddFontFile(const OString& rNormalizedName,
|
|
int nFaceNum, int nVariantNum,
|
|
sal_IntPtr nFontId,
|
|
const FontAttributes&);
|
|
|
|
SAL_DLLPRIVATE void AnnounceFonts( vcl::font::PhysicalFontCollection* ) const;
|
|
|
|
void ClearFontCache();
|
|
|
|
SAL_DLLPRIVATE FreetypeFont* CreateFont(FreetypeFontInstance* pLogicalFont);
|
|
|
|
private:
|
|
// to access the constructor (can't use InitFreetypeManager function, because it's private?!)
|
|
friend class GenericUnixSalData;
|
|
SAL_DLLPRIVATE explicit FreetypeManager();
|
|
|
|
SAL_DLLPRIVATE static void InitFreetype();
|
|
SAL_DLLPRIVATE FreetypeFontFile* FindFontFile(const OString& rNativeFileName);
|
|
|
|
typedef std::unordered_map<sal_IntPtr, std::shared_ptr<FreetypeFontInfo>> FontInfoList;
|
|
typedef std::unordered_map<const char*, std::unique_ptr<FreetypeFontFile>, rtl::CStringHash, rtl::CStringEqual> FontFileList;
|
|
|
|
FontInfoList m_aFontInfoList;
|
|
|
|
FontFileList m_aFontFileList;
|
|
};
|
|
|
|
class VCL_DLLPUBLIC FreetypeFont final
|
|
{
|
|
public:
|
|
SAL_DLLPRIVATE ~FreetypeFont();
|
|
|
|
SAL_DLLPRIVATE const OString& GetFontFileName() const;
|
|
SAL_DLLPRIVATE int GetFontFaceIndex() const;
|
|
SAL_DLLPRIVATE int GetFontFaceVariation() const;
|
|
bool TestFont() const { return mbFaceOk;}
|
|
SAL_DLLPRIVATE FT_Face GetFtFace() const;
|
|
const FontConfigFontOptions* GetFontOptions() const;
|
|
|
|
SAL_DLLPRIVATE void GetFontMetric(FontMetricDataRef const &) const;
|
|
|
|
SAL_DLLPRIVATE bool GetGlyphOutline(sal_GlyphId, basegfx::B2DPolyPolygon&, bool) const;
|
|
bool GetAntialiasAdvice() const;
|
|
|
|
private:
|
|
friend class FreetypeFontInstance;
|
|
friend class FreetypeManager;
|
|
|
|
SAL_DLLPRIVATE explicit FreetypeFont(FreetypeFontInstance&, std::shared_ptr<FreetypeFontInfo> rFontInfo);
|
|
|
|
SAL_DLLPRIVATE void ApplyGlyphTransform(bool bVertical, FT_Glyph) const;
|
|
|
|
FreetypeFontInstance& mrFontInstance;
|
|
|
|
// 16.16 fixed point values used for a rotated font
|
|
tools::Long mnCos;
|
|
tools::Long mnSin;
|
|
|
|
int mnWidth;
|
|
int mnPrioAntiAlias;
|
|
std::shared_ptr<FreetypeFontInfo> mxFontInfo;
|
|
double mfStretch;
|
|
FT_FaceRec_* maFaceFT;
|
|
FT_SizeRec_* maSizeFT;
|
|
|
|
mutable std::unique_ptr<FontConfigFontOptions> mxFontOptions;
|
|
|
|
bool mbFaceOk;
|
|
};
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|