/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ /* * 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 .
*/
// nowadays these substitutions are needed for backward compatibility and tight platform integration: // - substitutions from configuration entries (Tools->Options->FontReplacement and/or fontconfig) // - device specific substitutions (e.g. for PS printer builtin fonts) // - substitutions for missing fonts defined by configuration entries (generic and/or platform dependent fallbacks) // - substitutions for missing fonts defined by multi-token fontnames (e.g. fontname="SpecialFont;FallbackA;FallbackB") // - substitutions for incomplete fonts (implicit, generic, EUDC and/or platform dependent fallbacks) // - substitutions for missing symbol fonts by translating code points into other symbol fonts
#pragma once
#include <sal/config.h>
#include <rtl/ustring.hxx>
#include <font/FontSelectPattern.hxx>
class LogicalFontInstance;
namespace vcl::font
{ class FontSelectPattern;
class FontSubstitution
{ // TODO: there is more commonality between the different substitutions protected: virtual ~FontSubstitution() {}
};
/// Abstracts the concept of finding the best font to support an incomplete font class GlyphFallbackFontSubstitution : public FontSubstitution
{ public: virtualbool FindFontSubstitute(vcl::font::FontSelectPattern&,
LogicalFontInstance* pLogicalFont,
OUString& rMissingCodes) const = 0;
};
/** Abstracts the concept of a configured font substitution before the availability of the originally selected font has been checked.
*/ class PreMatchFontSubstitution : public FontSubstitution
{ public: virtualbool FindFontSubstitute(vcl::font::FontSelectPattern&) const = 0;
};
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