CellMetrics class

Monospace cell metrics (Alacritty-style).

Width: average advance of repeated ASCII 'W'. Height: primary font ascent+descent (via LineMetrics), scaled by the optional Flutter TextStyle.height multiplier for leading — not by probing CJK/fallback text and taking max. Glyphs from any script are then drawn into that fixed cell with a forced strut (terminal clip/fit semantics).

Constructors

CellMetrics(double width, double height, {double? contentHeight})

Properties

contentHeight → double

Glyph line-box height before font.offset Y. Strut / paragraph layout must use this — offset grows the cell around the glyph, not the strut.

final

hashCode → int

The hash code for this object.

no setter, inherited

height → double

Full cell height including font.offset Y padding.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

width → double

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

strutLineHeight(double fontSize) → double

Strut / TextStyle.height multiplier matching contentHeight.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

measure(TextStyle style, {int sample = 20, double offsetX = 0, double offsetY = 0}) → CellMetrics

Measure cell size for style.

primaryLineHeight(TextStyle style) → double

Primary-face line height ≈ FreeType ascent + descent (Alacritty metrics.line_height without offset). Ignores style's height multiplier and fontFamilyFallback — only the primary family.