Class ByteEncoding in namespace setasign\SetaPDF2\Core\Font\TrueType\Subset\File in SetaPDF v2 API Reference

Index

\setasign\SetaPDF2
1. Core
  1. Font
    1. TrueType
    2. TrueType
      1. Subset
      2. Subset
        
        File
        
        AbstractFile
        
        ByteEncoding
        
        Identity

setasign\SetaPDF2\Core\Font\TrueType\Subset\File

ByteEncoding Font subsetting class used for single byte encoding.

File: /SetaPDF v2/Core/Font/TrueType/Subset/File/ByteEncoding.php
Old class name (alias): \SetaPDF_Core_Font_TrueType_Subset_File_ByteEncoding

Class hierarchy

AbstractFile
- ByteEncoding

Summary

Properties

$_cmapOriginSubTable

private \SetaPDF_Core_Font_TrueType_Table_CharacterToGlyphIndexMapping_SubTable ByteEncoding::$_cmapOriginSubTable

The origin cmap subtable.

$_cmapTargetSubTable

private \SetaPDF_Core_Font_TrueType_Subset_Table_CharacterToGlyphIndexMapping_ByteEncoding ByteEncoding::$_cmapTargetSubTable

The resulting cmap subtable.

$_glyf

private \SetaPDF_Core_Font_TrueType_Subset_Table_GlyphData ByteEncoding::$_glyf

The glyf table.

$_mapping

private array ByteEncoding::$_mapping = array()

The char code to glyph id mapping.

$_tables

protected \SetaPDF_Core_Font_TrueType_Subset_Table[] AbstractFile::$_tables = array()

The table instances.

Static Methods

calculateChecksumAdjustment()

public static AbstractFile::calculateChecksumAdjustment (

string $offsetData,
string[] $checksums

): string

Calculates the checksum adjustment.

Parameters

$offsetData : string
$checksums : string[]

calculateTableChecksum()

public static AbstractFile::calculateTableChecksum (

string $data

): string

Calculates a table checksum.

Parameters

$data : string

Methods

__construct()

public ByteEncoding::__construct (

\SetaPDF_Core_Font_TrueType_File $font

)

The constructor.

Parameters

$font : \SetaPDF_Core_Font_TrueType_File

Exceptions

Throws \setasign\SetaPDF2\Core\Font\Exception

_prepareSubset()

protected AbstractFile::_prepareSubset (

void

): void

Prepares the data for sub-setting.

Exceptions

Throws \setasign\SetaPDF2\Core\Font\Exception

_resolveGlyphs()

protected AbstractFile::_resolveGlyphs (

array $glyphs,
array &$data,
int $depth = 0

): array

Resolves all the glyphs recursively and updates the data array accordingly.

Parameters

$glyphs : array
$data : array
$depth : int

Exceptions

Throws \setasign\SetaPDF2\Core\Font\Exception

_writeOffsetTable()

public AbstractFile::_writeOffsetTable (

\SetaPDF_Core_Writer_WriterInterface $writer

): void

Writes the offset table.

Parameters

$writer : \SetaPDF_Core_Writer_WriterInterface

_writeTable()

protected AbstractFile::_writeTable (

\SetaPDF_Core_Writer_WriterInterface $writer,
string $tag

): array

Writes a single table and returns information about it.

Parameters

$writer : \SetaPDF_Core_Writer_WriterInterface
$tag : string

_writeTables()

private AbstractFile::_writeTables (

\SetaPDF_Core_Writer_WriterInterface $writer

): array

Writes the tables.

Parameters

$writer : \SetaPDF_Core_Writer_WriterInterface

addChar()

public ByteEncoding::addChar (

string $char

): string

Adds a character to the subset and returns the value to which it is registered.

Parameters

$char : string: The char in UTF16-BE encoding

Exceptions

Throws \setasign\SetaPDF2\NotImplementedException

addCharCode()

public ByteEncoding::addCharCode (

int $charCode

): int

Adds a char code to the subset.

Parameters

$charCode : int: The unicode point to add.

Return Values

The new point in the individual encoding.

Exceptions

Throws \setasign\SetaPDF2\NotImplementedException

cleanUp()

public ByteEncoding::cleanUp (

void

): void

Release memory and cycled references.

getFont()

public AbstractFile::getFont (

void

): \SetaPDF_Core_Font_TrueType_File

Gets the original font.

getTable()

public AbstractFile::getTable (

string $tag

): \SetaPDF_Core_Font_TrueType_Subset_Table

Gets a table.

Parameters

$tag : string

Exceptions

Throws \setasign\SetaPDF2\Core\Font\Exception

subset()

public AbstractFile::subset (

\SetaPDF_Core_Writer_WriterInterface $writer

): void

Subsets the font.

Parameters

$writer : \SetaPDF_Core_Writer_WriterInterface

Exceptions

Throws \setasign\SetaPDF2\Core\Font\Exception