fonts

type Analyzer struct {
	// Map of font -> set of used CIDs/codes
	UsedGlyphs map[*semantic.Font]map[int]bool
	// TextRuns records per-font script-aware runs derived from ToUnicode mappings.
	TextRuns map[*semantic.Font][]TextRun
}

type CFF struct {
	Header   CFFHeader
	Names    []string
	TopDicts []map[int][]Operand // Key is operator, value is operands
	Strings  []string
}

type CFFHeader struct {
	Major   uint8
	Minor   uint8
	HdrSize uint8
	OffSize uint8
}

type OpenTypeTable struct {
	Tag      string
	CheckSum uint32
	Offset   uint32
	Length   uint32
}

type Operand struct {
	Int   int
	Float float64
	IsInt bool
}

type Planner struct {
	Subsets map[*semantic.Font]*Subset
}

type ShapedGlyph struct {
	ID       int
	XAdvance float64 // In PDF text units (1/1000 em)
	YAdvance float64
	XOffset  float64
	YOffset  float64
}

type Subset struct {
	OriginalToSubset map[int]int // Map original CID -> new CID (identity for now)
	SubsetToOriginal map[int]int // Map new CID -> original CID
	UsedCIDs         []int       // List of used CIDs
	GlyphSet         map[int]bool
}

type Subsetter struct{}

type TextRun struct {
	Runes  []rune
	Script language.Script
}