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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 .
+ */
+
+#pragma once
+
+#include <drawinglayer/drawinglayerdllapi.h>
+
+#include <basegfx/range/b2drange.hxx>
+#include <vector>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <vcl/svapp.hxx>
+
+// predefines
+class VirtualDevice;
+class GDIMetaFile;
+enum class DrawTextFlags;
+namespace vcl
+{
+class Font;
+}
+namespace tools
+{
+class Rectangle;
+}
+namespace drawinglayer::attribute
+{
+class FontAttribute;
+}
+namespace com::sun::star::lang
+{
+struct Locale;
+}
+
+// access to one global impTimedRefDev incarnation in namespace drawinglayer::primitive
+
+namespace drawinglayer::primitive2d
+{
+/** TextLayouterDevice class
+
+ This helper class exists to isolate all accesses to VCL
+ text formatting/handling functionality for primitive implementations.
+ When in the future FontHandling may move to an own library independent
+ from VCL, primitives will be prepared.
+ */
+class DRAWINGLAYER_DLLPUBLIC TextLayouterDevice
+{
+ /// internally used VirtualDevice
+ SolarMutexGuard maSolarGuard;
+ VirtualDevice& mrDevice;
+
+public:
+ /// constructor/destructor
+ TextLayouterDevice();
+ ~TextLayouterDevice() COVERITY_NOEXCEPT_FALSE;
+
+ /// tooling methods
+ void setFont(const vcl::Font& rFont);
+ void setFontAttribute(const attribute::FontAttribute& rFontAttribute, double fFontScaleX,
+ double fFontScaleY, const css::lang::Locale& rLocale);
+
+ double getTextHeight() const;
+ double getOverlineHeight() const;
+ double getOverlineOffset() const;
+ double getUnderlineHeight() const;
+ double getUnderlineOffset() const;
+ double getStrikeoutOffset() const;
+
+ double getTextWidth(const OUString& rText, sal_uInt32 nIndex, sal_uInt32 nLength) const;
+
+ void getTextOutlines(basegfx::B2DPolyPolygonVector&, const OUString& rText, sal_uInt32 nIndex,
+ sal_uInt32 nLength, const ::std::vector<double>& rDXArray) const;
+
+ basegfx::B2DRange getTextBoundRect(const OUString& rText, sal_uInt32 nIndex,
+ sal_uInt32 nLength) const;
+
+ double getFontAscent() const;
+ double getFontDescent() const;
+
+ void addTextRectActions(const tools::Rectangle& rRectangle, const OUString& rText,
+ DrawTextFlags nStyle, GDIMetaFile& rGDIMetaFile) const;
+
+ ::std::vector<double> getTextArray(const OUString& rText, sal_uInt32 nIndex,
+ sal_uInt32 nLength) const;
+
+ ::std::vector<double> getCaretPositions(const OUString& rText, sal_uInt32 nIndex,
+ sal_uInt32 nLength) const;
+};
+
+// helper methods for vcl font handling
+
+/** Create a VCL-Font based on the definitions in FontAttribute
+ and the given FontScaling. The FontScaling defines the FontHeight
+ (fFontScaleY) and the FontWidth (fFontScaleX). The combination of
+ both defines FontStretching, where no stretching happens at
+ fFontScaleY == fFontScaleX
+ */
+vcl::Font DRAWINGLAYER_DLLPUBLIC getVclFontFromFontAttribute(
+ const attribute::FontAttribute& rFontAttribute, double fFontScaleX, double fFontScaleY,
+ double fFontRotation, const css::lang::Locale& rLocale);
+
+/** Generate FontAttribute DataSet derived from the given VCL-Font.
+ The FontScaling with fFontScaleY, fFontScaleX relationship (see
+ above) will be set in return parameter o_rSize to allow further
+ processing
+ */
+attribute::FontAttribute DRAWINGLAYER_DLLPUBLIC getFontAttributeFromVclFont(
+ basegfx::B2DVector& o_rSize, const vcl::Font& rFont, bool bRTL, bool bBiDiStrong);
+
+} // end of namespace drawinglayer::primitive2d
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */