A class for rendering text objects using harfbuzz layout for right to left and left to right text shaping.

Inheritance diagram for makVrv::DtTextLayout:

Classes
struct	CharacterInformation

class	HarfBuzzShaper

struct	LineInformation

Public Member Functions
	DtTextLayout ()

virtual	~DtTextLayout ()

	DtTextLayout (const DtTextLayout &other)=delete

DtTextLayout &	operator= (const DtTextLayout &other)=delete

virtual void	renderText (DtTexturedGlyphRenderer , const DtTextProxy , DtFontSP, const DtBoundingBox &)

virtual DtUnicode	bidiFix (const DtUnicode &) const

virtual Dt2dPoint	calculateGlyphSize (const DtFontSP &font, const DtPen &pen, const DtUnicode &string, unsigned int pos=0, int len=-1) const

virtual DtBoundingBox	calculateBoundingBox (const DtFontSP &font, const DtPen &pen, const DtUnicode &string, unsigned int pos=0, int len=-1) const

virtual bool	isShaped (void) const

virtual void	layoutRightToLeft (const DtTextProxy *, DtFontSP, const DtBoundingBox &)

virtual void	layoutLeftToRight (const DtTextProxy *, DtFontSP, const DtBoundingBox &)

Public Member Functions inherited from makVrv::DtTextLayoutInterface
	DtTextLayoutInterface ()

virtual	~DtTextLayoutInterface ()

	DtTextLayoutInterface (const DtTextLayoutInterface &other)=delete

DtTextLayoutInterface &	operator= (const DtTextLayoutInterface &other)=delete

Protected Types
typedef std::vector < LineInformation >	Lines

Protected Member Functions
virtual bool	renderCharacter (DtGlyphRenderer &renderer, DtPen &pen, const DtFontSP &font, const unsigned int &character)

virtual void	renderLayout (DtTexturedGlyphRenderer , const DtTextProxy , DtFontSP, const DtBoundingBox &)

Protected Attributes
HarfBuzzShaper	myShaper

std::vector< std::string >	myFontFilePaths

unsigned int	myPointSize

DtUnicode	myLastStringRendered

DtUnicode	myRenderedText

Lines	myLines

double	myLineLength

bool	myRightToLeftLayout

Member Typedef Documentation

typedef std::vector<LineInformation> makVrv::DtTextLayout::Lines

protected

Constructor & Destructor Documentation

makVrv::DtTextLayout::DtTextLayout ( )

CTOR.

virtual makVrv::DtTextLayout::~DtTextLayout ( )

virtual

DTOR.

makVrv::DtTextLayout::DtTextLayout ( const DtTextLayout & other )

delete

Copy Constructor not implemented - Copy not allowed.

Member Function Documentation

DtTextLayout& makVrv::DtTextLayout::operator= ( const DtTextLayout & other )

delete

Assignment Operator not implemented - Assignment not allowed.

virtual void makVrv::DtTextLayout::renderText	(	DtTexturedGlyphRenderer *	,
		const DtTextProxy *	,
		DtFontSP	,
		const DtBoundingBox &
	)

virtual

Renders the text to the given glyph renderer.

Implements makVrv::DtTextLayoutInterface.

virtual DtUnicode makVrv::DtTextLayout::bidiFix ( const DtUnicode & ) const

virtual

Fixes the text for bi-directional issues. Currently only reverses numerals for right to left text.

virtual Dt2dPoint makVrv::DtTextLayout::calculateGlyphSize	(	const DtFontSP &	font,
		const DtPen &	pen,
		const DtUnicode &	string,
		unsigned int	pos = `0`,
		int	len = `-1`
	)		const

virtual

Calculates the bounding box for a string.

Implements makVrv::DtTextLayoutInterface.

virtual DtBoundingBox makVrv::DtTextLayout::calculateBoundingBox	(	const DtFontSP &	font,
		const DtPen &	pen,
		const DtUnicode &	string,
		unsigned int	pos = `0`,
		int	len = `-1`
	)		const

virtual

Calculate the bounding box for a string.

Implements makVrv::DtTextLayoutInterface.

virtual bool makVrv::DtTextLayout::isShaped ( void ) const

inlinevirtual

Implements makVrv::DtTextLayoutInterface.

virtual void makVrv::DtTextLayout::layoutRightToLeft	(	const DtTextProxy *	,
		DtFontSP	,
		const DtBoundingBox &
	)

virtual

virtual void makVrv::DtTextLayout::layoutLeftToRight	(	const DtTextProxy *	,
		DtFontSP	,
		const DtBoundingBox &
	)

virtual

virtual bool makVrv::DtTextLayout::renderCharacter	(	DtGlyphRenderer &	renderer,
		DtPen &	pen,
		const DtFontSP &	font,
		const unsigned int &	character
	)

protectedvirtual

Renders the character to the position specified by the pen.

virtual void makVrv::DtTextLayout::renderLayout	(	DtTexturedGlyphRenderer *	,
		const DtTextProxy *	,
		DtFontSP	,
		const DtBoundingBox &
	)

protectedvirtual

Renders the laid out text to the given renderer.

Member Data Documentation

HarfBuzzShaper makVrv::DtTextLayout::myShaper

protected

std::vector<std::string> makVrv::DtTextLayout::myFontFilePaths

protected

Members that are used to store information about the last font/point size used. Used for efficiency.

unsigned int makVrv::DtTextLayout::myPointSize

protected

DtUnicode makVrv::DtTextLayout::myLastStringRendered

protected

DtUnicode makVrv::DtTextLayout::myRenderedText

protected

Lines makVrv::DtTextLayout::myLines

protected

double makVrv::DtTextLayout::myLineLength

protected

bool makVrv::DtTextLayout::myRightToLeftLayout

protected

The documentation for this class was generated from the following file:

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrvGraphics/DtTextLayout.h

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation