phpdftk API Documentation

FontFaceData
in package

Read onlyYes
AbstractYes

Common shape for a parsed font face — the fields any downstream consumer needs to lay out, shape, and embed text.

Subclassed by OpenTypeData (CFF outlines, sfVersion OTTO) and TrueTypeData (glyf/loca outlines, sfVersion 0x00010000). Both carry the same metric and glyph-mapping fields; the format- specific parts (CFF table bytes vs raw TTF glyf data) live on the subclass.

The base class itself is abstract readonly so the field set is fixed at construction and the type hierarchy stays narrow: code that hits a metric or a glyph lookup uses FontFaceData, and code that has to embed the bytes into a PDF stream does an instanceof check on the subclass to pick the CFF or TrueType embed path.

Optional fields on the base — verticalWidths, underlinePosition, underlineThickness, mathTable — live here so any code that reads them via the polymorphic type can do so safely. Subclasses that don't carry the source table just leave the field null at construction.

Table of Contents

Properties

$ascent  : int
$capHeight  : int
$charWidths  : array<string|int, mixed>
$descent  : int
$embeddingAllowed  : bool
$familyName  : string
$flags  : int
$fontBBox  : array<string|int, mixed>
$fontBytes  : string
$fullUnicodeToGid  : array<string|int, mixed>
$glyphWidths  : array<string|int, mixed>
$italicAngle  : float
$kernPairs  : array<string|int, mixed>|null
$ligatures  : array<string|int, mixed>|null
$mathTable  : MathTableData|null
$postScriptName  : string
$stemV  : int
$underlinePosition  : int|null
$underlineThickness  : int|null
$unicodeMap  : array<string|int, mixed>
$unitsPerEm  : int
$verticalWidths  : array<string|int, mixed>|null
$xHeight  : int

Methods

__construct()  : mixed

Properties

$fullUnicodeToGid

public array<string|int, mixed> $fullUnicodeToGid = []

$glyphWidths

public array<string|int, mixed> $glyphWidths = []

$kernPairs

public array<string|int, mixed>|null $kernPairs = null

$ligatures

public array<string|int, mixed>|null $ligatures = null

$underlinePosition

public int|null $underlinePosition = null

$underlineThickness

public int|null $underlineThickness = null

$verticalWidths

public array<string|int, mixed>|null $verticalWidths = null

Methods

__construct()

public __construct(string $postScriptName, string $familyName, int $ascent, int $descent, int $capHeight, int $xHeight, float $italicAngle, int $stemV, int $flags, array<int, int> $fontBBox, array<int, int> $charWidths, array<int, int> $unicodeMap, string $fontBytes, bool $embeddingAllowed[, int $unitsPerEm = 1000 ][, array<int, int> $fullUnicodeToGid = [] ][, array<int, int> $glyphWidths = [] ][, array<int, array<int, int>>|null $kernPairs = null ][, array<int, array<int, array{components: int[], ligature: int}>>|null $ligatures = null ][, array<int, int>|null $verticalWidths = null ][, int|null $underlinePosition = null ][, int|null $underlineThickness = null ][, MathTableData|null $mathTable = null ]) : mixed
Parameters
$postScriptName : string
$familyName : string
$ascent : int
$descent : int
$capHeight : int
$xHeight : int
$italicAngle : float
$stemV : int
$flags : int
$fontBBox : array<int, int>

[xMin, yMin, xMax, yMax] in 1000 units/em

$charWidths : array<int, int>

WinAnsi byte (32-255) → advance (1000 units/em)

$unicodeMap : array<int, int>

WinAnsi byte → Unicode codepoint

$fontBytes : string
$embeddingAllowed : bool
$unitsPerEm : int = 1000
$fullUnicodeToGid : array<int, int> = []

Unicode codepoint → GID

$glyphWidths : array<int, int> = []

GID → advance (design units, unscaled)

$kernPairs : array<int, array<int, int>>|null = null

leftGid → [rightGid → xAdvanceAdjust]

$ligatures : array<int, array<int, array{components: int[], ligature: int}>>|null = null

firstGid → ligature rules

$verticalWidths : array<int, int>|null = null

GID → vertical advance (design units)

$underlinePosition : int|null = null

post table FWord — offset of the underline's top edge from the baseline (design units; negative = below baseline). Null if the table is missing.

$underlineThickness : int|null = null

post table FWord — underline stroke thickness in design units.

$mathTable : MathTableData|null = null

Parsed MATH table when the font has one.


        

        
    




    

    

                                

                

                                
    

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