1 files changed, 73 insertions, 0 deletions
diff --git a/vcl/inc/ImplLayoutArgs.hxx b/vcl/inc/ImplLayoutArgs.hxx
new file mode 100644
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+++ b/vcl/inc/ImplLayoutArgs.hxx
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+/* -*- 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 .
+ */
+
+#include "sallayout.hxx"
+
+namespace vcl::text
+{
+class VCL_DLLPUBLIC ImplLayoutArgs
+{
+public:
+    // string related inputs
+    LanguageTag maLanguageTag;
+    SalLayoutFlags mnFlags;
+    const OUString& mrStr;
+    int mnMinCharPos;
+    int mnEndCharPos;
+
+    // performance hack
+    vcl::text::TextLayoutCache const* m_pTextLayoutCache;
+
+    // positioning related inputs
+    const DeviceCoordinate* mpDXArray; // in integer pixel units
+    const double* mpAltNaturalDXArray; // in floating point pixel units
+    DeviceCoordinate mnLayoutWidth; // in pixel units
+    Degree10 mnOrientation; // in 0-3600 system
+
+    // data for bidi and glyph+script fallback
+    ImplLayoutRuns maRuns;
+    ImplLayoutRuns maFallbackRuns;
+
+    ImplLayoutArgs(OUString const& rStr, int nMinCharPos, int nEndCharPos, SalLayoutFlags nFlags,
+                   LanguageTag const& rLanguageTag, vcl::text::TextLayoutCache const* pLayoutCache);
+
+    void SetLayoutWidth(DeviceCoordinate nWidth);
+    void SetDXArray(const DeviceCoordinate* pDXArray);
+    void SetAltNaturalDXArray(const double* pDXArray);
+    void SetOrientation(Degree10 nOrientation);
+
+    void ResetPos();
+    bool GetNextPos(int* nCharPos, bool* bRTL);
+    bool GetNextRun(int* nMinRunPos, int* nEndRunPos, bool* bRTL);
+    void AddFallbackRun(int nMinRunPos, int nEndRunPos, bool bRTL);
+    bool HasDXArray() const { return mpDXArray || mpAltNaturalDXArray; }
+
+    // methods used by BiDi and glyph fallback
+    bool HasFallbackRun() const;
+    bool PrepareFallback(const SalLayoutGlyphsImpl* pGlyphsImpl);
+
+private:
+    void AddRun(int nMinCharPos, int nEndCharPos, bool bRTL);
+};
+}
+
+// For nice SAL_INFO logging of ImplLayoutArgs values
+std::ostream& operator<<(std::ostream& s, vcl::text::ImplLayoutArgs const& rArgs);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */