textlayoutdevice.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#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
{
class DRAWINGLAYER_DLLPUBLIC TextLayouterDevice
{
    SolarMutexGuard maSolarGuard;
    VirtualDevice& mrDevice;
 
public:
    TextLayouterDevice();
    ~TextLayouterDevice() COVERITY_NOEXCEPT_FALSE;
 
    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 ::std::vector<sal_Bool>& rKashidaArray) 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,
                                       bool bCaret = false) const;
};
 
// helper methods for vcl font handling
 
vcl::Font DRAWINGLAYER_DLLPUBLIC getVclFontFromFontAttribute(
    const attribute::FontAttribute& rFontAttribute, double fFontScaleX, double fFontScaleY,
    double fFontRotation, const css::lang::Locale& rLocale);
 
attribute::FontAttribute DRAWINGLAYER_DLLPUBLIC getFontAttributeFromVclFont(
    basegfx::B2DVector& o_rSize, const vcl::Font& rFont, bool bRTL, bool bBiDiStrong);
 
} // end of namespace drawinglayer::primitive2d
 
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