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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 .
+ */
+
+#ifndef INCLUDED_DRAWINGLAYER_TEXTLAYOUTDEVICE_HXX
+#define INCLUDED_DRAWINGLAYER_TEXTLAYOUTDEVICE_HXX
+
+#include <drawinglayer/drawinglayerdllapi.h>
+
+#include <tools/solar.h>
+#include <tools/poly.hxx>
+#include <basegfx/range/b2drange.hxx>
+#include <vector>
+#include <com/sun/star/lang/Locale.hpp>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+
+//////////////////////////////////////////////////////////////////////////////
+// predefines
+class VirtualDevice;
+class Font;
+class String;
+class OutputDevice;
+class GDIMetaFile;
+
+namespace drawinglayer { namespace attribute {
+ class FontAttribute;
+}}
+
+//////////////////////////////////////////////////////////////////////////////
+// access to one global impTimedRefDev incarnation in namespace drawinglayer::primitive
+
+namespace drawinglayer
+{
+ namespace 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
+ VirtualDevice& mrDevice;
+
+ public:
+ /// constructor/destructor
+ TextLayouterDevice();
+ ~TextLayouterDevice();
+
+ /// tooling methods
+ void setFont(const Font& rFont);
+ void setFontAttribute(
+ const attribute::FontAttribute& rFontAttribute,
+ double fFontScaleX,
+ double fFontScaleY,
+ const ::com::sun::star::lang::Locale & rLocale);
+
+ double getTextHeight() const;
+ double getOverlineHeight() const;
+ double getOverlineOffset() const;
+ double getUnderlineHeight() const;
+ double getUnderlineOffset() const;
+ double getStrikeoutOffset() const;
+
+ double getTextWidth(
+ const String& rText,
+ sal_uInt32 nIndex,
+ sal_uInt32 nLength) const;
+
+ bool getTextOutlines(
+ basegfx::B2DPolyPolygonVector&,
+ const String& rText,
+ sal_uInt32 nIndex,
+ sal_uInt32 nLength,
+ const ::std::vector< double >& rDXArray) const;
+
+ basegfx::B2DRange getTextBoundRect(
+ const String& rText,
+ sal_uInt32 nIndex,
+ sal_uInt32 nLength) const;
+
+ double getFontAscent() const;
+ double getFontDescent() const;
+
+ void addTextRectActions(
+ const Rectangle& rRectangle,
+ const String& rText,
+ sal_uInt16 nStyle,
+ GDIMetaFile& rGDIMetaFile) const;
+
+ ::std::vector< double > getTextArray(
+ const String& rText,
+ sal_uInt32 nIndex,
+ sal_uInt32 nLength) const;
+ };
+ } // end of namespace primitive2d
+} // end of namespace drawinglayer
+
+//////////////////////////////////////////////////////////////////////////////
+// helper methods for vcl font handling
+
+namespace drawinglayer
+{
+ namespace primitive2d
+ {
+ /** 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
+ */
+ Font DRAWINGLAYER_DLLPUBLIC getVclFontFromFontAttribute(
+ const attribute::FontAttribute& rFontAttribute,
+ double fFontScaleX,
+ double fFontScaleY,
+ double fFontRotation,
+ const ::com::sun::star::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 Font& rFont,
+ bool bRTL,
+ bool bBiDiStrong);
+
+ } // end of namespace primitive2d
+} // end of namespace drawinglayer
+
+//////////////////////////////////////////////////////////////////////////////
+
+#endif //_DRAWINGLAYER_TEXTLAYOUTDEVICE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */