kanzi::ItypeTextShaper Class Reference

TextShaper implementation using Monotype's WTShaper library. More...

#include <kanzi/plugins/itype/itype_text_shaper.hpp>

Inheritance diagram for kanzi::ItypeTextShaper:

Classes
struct	FontData
	Runtime data for text layouting to be passed to WTShaper. More...

Public Member Functions
virtual void	adjustPositions (TextLayouter::IntermediateLayout *layout, const TextLayouter::LineInfo &line) const override
	Iterates all layouted glyphs on the line and adjusts their positions based on the shaping results.
void	appendTerminator (size_t newSize, const TextLayouter::IntermediateLayout *terminator, size_t terminatorPosition) override
	TextShaper::appendTerminator() implementation.
void	cleanup () override
	Cleans up the data that this text shaper used for shaping a specific text run.
void	insertText (size_t location, const TextLayouter::IntermediateLayout *text) override
	TextShaper::insertText() implementation.
	ItypeTextShaper (const FontRuntime &font)
	Constructor.
	ItypeTextShaper (const FontRuntime &font, ItypeThaiDictionarySharedPtr thaiDictionary)
	Constructor that constructs the shaper object to use with the Thai dictionary.
void	loadShaperState (const TextShaperState &state) override
	The TextShaper::loadShaperState() implementation for the iType text shaper.
vector< TextLayouter::CharacterInfo >	markBidiAndShape (const vector< char32_t > &unicodeText) override
	Use this function to:
void	removeText (size_t location, size_t length) override
	TextShaper::removeText() implementation.
virtual void	reorderLine (TextLayouter::IntermediateLayout *layout, const TextLayouter::LineInfo &line) override
	Reorders the text line for text written right-to-left.
TextShaperStatePtr	saveShaperState () const override
	The TextShaper::saveShaperState() implementation for the iType text shaper.
virtual	~ItypeTextShaper ()
	Destructor.
Public Member Functions inherited from kanzi::TextShaper
uint8_t	getBaseBiDiLevel () const
	Gets the base bidi-level of the text.
virtual void	prepareLines (TextLayouter::IntermediateLayout *layout)
	Prepares the internal data structures after line breaking.
void	setBaseBiDiLevel (uint8_t baseBiDiLevel)
	Sets the base bidi-level of the text.
	TextShaper (const FontRuntime &font)
	Constructor.
virtual	~TextShaper ()
	Destructor.

Additional Inherited Members
Protected Member Functions inherited from kanzi::TextShaper
FontFile &	getFontFile (const FontRuntime &font) const
	Gets the font file that the passed font is currently using.
Protected Attributes inherited from kanzi::TextShaper
uint8_t	m_baseBiDiLevel
	The base bidi-level.
const FontRuntime &	m_font
	Font object used for shaping.

Detailed Description

TextShaper implementation using Monotype's WTShaper library.

Constructor & Destructor Documentation

ItypeTextShaper() [1/2]

kanzi::ItypeTextShaper::ItypeTextShaper ( const FontRuntime & font )

explicit

Constructor.

Parameters

font	Font object used for shaping.

ItypeTextShaper() [2/2]

kanzi::ItypeTextShaper::ItypeTextShaper ( const FontRuntime & font, ItypeThaiDictionarySharedPtr thaiDictionary )

explicit

Constructor that constructs the shaper object to use with the Thai dictionary.

Parameters

font	Font object to use for shaping.
thaiDictionary	Thai dictionary object.

Since

Kanzi 3.9.4

~ItypeTextShaper()

virtual kanzi::ItypeTextShaper::~ItypeTextShaper ( )

virtual

Destructor.

Member Function Documentation

markBidiAndShape()

vector< TextLayouter::CharacterInfo > kanzi::ItypeTextShaper::markBidiAndShape ( const vector< char32_t > & unicodeText )

overridevirtual

Use this function to:

• Create tags to indicate which parts of the text must be written left-to-right and which right-to-left.
• Mirror specific character for the text written right-to-left.
• Shape text.

  Parameters

  unicodeText

  Text to shape and mirror.

  Returns

  Layouting information for each character.

Reimplemented from kanzi::TextShaper.

appendTerminator()

void kanzi::ItypeTextShaper::appendTerminator ( size_t newSize, const TextLayouter::IntermediateLayout * terminator, size_t terminatorPosition )

overridevirtual

TextShaper::appendTerminator() implementation.

Reimplemented from kanzi::TextShaper.

insertText()

void kanzi::ItypeTextShaper::insertText ( size_t location, const TextLayouter::IntermediateLayout * text )

overridevirtual

TextShaper::insertText() implementation.

Reimplemented from kanzi::TextShaper.

removeText()

void kanzi::ItypeTextShaper::removeText ( size_t location, size_t length )

overridevirtual

TextShaper::removeText() implementation.

Reimplemented from kanzi::TextShaper.

reorderLine()

virtual void kanzi::ItypeTextShaper::reorderLine ( TextLayouter::IntermediateLayout * layout, const TextLayouter::LineInfo & line )

overridevirtual

Reorders the text line for text written right-to-left.

Parameters

layout	Pointer to the intermediate layout containing the text.
line	Information defining the currently processed line.

Reimplemented from kanzi::TextShaper.

adjustPositions()

virtual void kanzi::ItypeTextShaper::adjustPositions ( TextLayouter::IntermediateLayout * layout, const TextLayouter::LineInfo & line ) const

overridevirtual

Iterates all layouted glyphs on the line and adjusts their positions based on the shaping results.

Parameters

layout	Pointer to intermediate layout containing the text.
line	Information defining the currently processed line.

Reimplemented from kanzi::TextShaper.

cleanup()

void kanzi::ItypeTextShaper::cleanup ( )

overridevirtual

Cleans up the data that this text shaper used for shaping a specific text run.

You must call this function at the end of every text shaping run.

Reimplemented from kanzi::TextShaper.

saveShaperState()

TextShaperStatePtr kanzi::ItypeTextShaper::saveShaperState ( ) const

overridevirtual

The TextShaper::saveShaperState() implementation for the iType text shaper.

Returns

The current state of the ItypeTextShaper.

Reimplemented from kanzi::TextShaper.

loadShaperState()

void kanzi::ItypeTextShaper::loadShaperState ( const TextShaperState & state )

overridevirtual

The TextShaper::loadShaperState() implementation for the iType text shaper.

Parameters

state

The state of the ItypeTextShaper to restore.

Reimplemented from kanzi::TextShaper.

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

• kanzi/plugins/itype/itype_text_shaper.hpp