embeddedfontshelper.hxx

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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/.
 */
 
#ifndef INCLUDED_VCL_EMBEDDEDFONTSHELPER_HXX
#define INCLUDED_VCL_EMBEDDEDFONTSHELPER_HXX
 
#include <vcl/dllapi.h>
 
#include <rtl/ustring.hxx>
#include <tools/fontenum.hxx>
#include <tools/long.hxx>
 
#include <string_view>
#include <vector>
 
namespace com::sun::star::io { class XInputStream; }
namespace com::sun::star::uno { template <typename > class Reference; }
 
class VCL_DLLPUBLIC EmbeddedFontsHelper
{
private:
    std::vector<std::pair<OUString, OUString>> m_aAccumulatedFonts;
 
    static void activateFont( const OUString& fontName, const OUString& fileUrl );
 
public:
    enum class FontRights
    {
        ViewingAllowed, 
        EditingAllowed 
    };
 
    static OUString fontFileUrl(
        std::u16string_view familyName, FontFamily family, FontItalic italic,
        FontWeight weight, FontPitch pitch, FontRights rights );
 
    bool addEmbeddedFont( const css::uno::Reference< css::io::XInputStream >& stream,
        const OUString& fontName, std::u16string_view extra,
        std::vector< unsigned char > const & key, bool eot = false);
 
    static OUString fileUrlForTemporaryFont( const OUString& fontName, std::u16string_view extra );
 
    void activateFonts();
 
    static bool sufficientTTFRights( const void* data, tools::Long size, FontRights rights );
 
    static void clearTemporaryFontFiles();
 
    ~EmbeddedFontsHelper() COVERITY_NOEXCEPT_FALSE
    {
        activateFonts();
    }
};
 
#endif
 
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