1 files changed, 104 insertions, 0 deletions
diff --git a/vcl/inc/win/DWriteTextRenderer.hxx b/vcl/inc/win/DWriteTextRenderer.hxx
new file mode 100644
index 000000000..b64cc48a1
--- /dev/null
+++ b/vcl/inc/win/DWriteTextRenderer.hxx
@@ -0,0 +1,104 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_VCL_INC_WIN_DWRITERENDERER_HXX
+#define INCLUDED_VCL_INC_WIN_DWRITERENDERER_HXX
+
+#include <usp10.h>
+#include <d2d1.h>
+#include <dwrite.h>
+
+#include <win/winlayout.hxx>
+
+enum class D2DTextAntiAliasMode
+{
+    Default,
+    Aliased,
+    AntiAliased,
+    ClearType,
+};
+
+class D2DWriteTextOutRenderer : public TextOutRenderer
+{
+public:
+    explicit D2DWriteTextOutRenderer(bool bRenderingModeNatural);
+    virtual ~D2DWriteTextOutRenderer() override;
+
+    bool operator()(GenericSalLayout const &rLayout,
+        SalGraphics &rGraphics,
+        HDC hDC,
+        bool bRenderingModeNatural) override;
+
+    HRESULT BindDC(HDC hDC, tools::Rectangle const & rRect = tools::Rectangle(0, 0, 1, 1));
+
+    bool BindFont(HDC hDC) /*override*/;
+    bool ReleaseFont() /*override*/;
+
+    std::vector<tools::Rectangle>  GetGlyphInkBoxes(uint16_t const * pGid, uint16_t const * pGidEnd) const /*override*/;
+    ID2D1RenderTarget * GetRenderTarget() const { return mpRT; }
+    IDWriteFontFace   * GetFontFace() const { return mpFontFace; }
+    float               GetEmHeight() const { return mlfEmHeight; }
+
+    HRESULT CreateRenderTarget(bool bRenderingModeNatural);
+
+    bool Ready() const;
+
+    void applyTextAntiAliasMode(bool bRenderingModeNatural);
+
+    bool GetRenderingModeNatural() const { return mbRenderingModeNatural; }
+
+private:
+    // This is a singleton object disable copy ctor and assignment operator
+    D2DWriteTextOutRenderer(const D2DWriteTextOutRenderer &) = delete;
+    D2DWriteTextOutRenderer & operator = (const D2DWriteTextOutRenderer &) = delete;
+
+    bool GetDWriteFaceFromHDC(HDC hDC, IDWriteFontFace ** ppFontFace, float * lfSize) const;
+    bool performRender(GenericSalLayout const &rLayout, SalGraphics &rGraphics, HDC hDC, bool& bRetry, bool bRenderingModeNatural);
+
+    ID2D1Factory        * mpD2DFactory;
+    IDWriteFactory      * mpDWriteFactory;
+    IDWriteGdiInterop   * mpGdiInterop;
+    ID2D1DCRenderTarget * mpRT;
+    const D2D1_RENDER_TARGET_PROPERTIES mRTProps;
+
+    IDWriteFontFace * mpFontFace;
+    float             mlfEmHeight;
+    HDC               mhDC;
+    bool mbRenderingModeNatural;
+    D2DTextAntiAliasMode meTextAntiAliasMode;
+};
+
+/**
+ * Sets and unsets the needed DirectWrite transform to support the font's horizontal scaling and
+ * rotation.
+ */
+class WinFontTransformGuard
+{
+public:
+    WinFontTransformGuard(ID2D1RenderTarget* pRenderTarget, float fHScale, const GenericSalLayout& rLayout, const D2D1_POINT_2F& rBaseline, bool bIsVertical);
+    ~WinFontTransformGuard();
+
+private:
+    ID2D1RenderTarget* mpRenderTarget;
+    D2D1::Matrix3x2F maTransform;
+};
+
+#endif // INCLUDED_VCL_INC_WIN_DWRITERENDERER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */