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Diffstat (limited to 'include/drawinglayer/primitive2d/textlayoutdevice.hxx')
-rw-r--r-- | include/drawinglayer/primitive2d/textlayoutdevice.hxx | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/include/drawinglayer/primitive2d/textlayoutdevice.hxx b/include/drawinglayer/primitive2d/textlayoutdevice.hxx new file mode 100644 index 000000000000..a0338a371aad --- /dev/null +++ b/include/drawinglayer/primitive2d/textlayoutdevice.hxx @@ -0,0 +1,155 @@ +/* -*- 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: */ |