DirectFontSubstitution.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <unotools/fontdefs.hxx>

#include <font/DirectFontSubstitution.hxx>

#include <svdata.hxx>

#include <string>
#include <vector>

namespace vcl::font
{
void DirectFontSubstitution::AddFontSubstitute(const OUString& rFontName,
                                               const OUString& rSubstFontName,
                                               AddFontSubstituteFlags nFlags)
{
    maFontSubstList.emplace_back(rFontName, rSubstFontName, nFlags);
}

void DirectFontSubstitution::RemoveFontsSubstitute() { maFontSubstList.clear(); }

bool DirectFontSubstitution::FindFontSubstitute(OUString& rSubstName,
                                                std::u16string_view rSearchName) const
{
    // TODO: get rid of O(N) searches
    std::vector<FontSubstEntry>::const_iterator it = std::find_if(
        maFontSubstList.begin(), maFontSubstList.end(), [&](const FontSubstEntry& s) {
            return (s.mnFlags & AddFontSubstituteFlags::ALWAYS) && (s.maSearchName == rSearchName);
        });
    if (it != maFontSubstList.end())
    {
        rSubstName = it->maSearchReplaceName;
        return true;
    }
    return false;
}

void ImplFontSubstitute(OUString& rFontName)
{
    // must be canonicalised
    assert(GetEnglishSearchFontName(rFontName) == rFontName);
    OUString aSubstFontName;
    // apply user-configurable font replacement (eg, from the list in Tools->Options)
    const DirectFontSubstitution* pSubst = ImplGetSVData()->maGDIData.mpDirectFontSubst;
    if (pSubst && pSubst->FindFontSubstitute(aSubstFontName, rFontName))
    {
        rFontName = aSubstFontName;
        return;
    }
}
}

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