1 files changed, 71 insertions, 0 deletions
diff --git a/vcl/source/font/DirectFontSubstitution.cxx b/vcl/source/font/DirectFontSubstitution.cxx
new file mode 100644
index 000000000..e494fb7ce
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+++ b/vcl/source/font/DirectFontSubstitution.cxx
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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 .
+ */
+
+#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;
+    }
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */