Module text

Expand description

Floem’s high-level text API.

This module exposes the text types used by Floem views and editor code:

styling attributes and font vocabulary re-exported from floem_renderer::text
Parley alignment, cursor, selection, and wrapping vocabulary used directly by Floem
TextLayout, Floem’s layout wrapper around Parley
TextLayoutState, shared view state for overflow-aware text layout

TextLayout deliberately hides Parley’s concrete layout type from most callers while still using Parley’s lower-level vocabulary types.

Structs§

Attrs: Text styling attributes used to configure font properties, color, and layout.
AttrsList: A list of text attributes with default styling and per-range overrides.
AttrsOwned: An owned version of Attrs that does not borrow the font family slice.
Cursor: Defines a position with a text layout.
FontWeight: Visual weight class of a font, typically on a scale from 1.0 to 1000.0.
FontWidth: Visual width of a font– a relative change from the normal aspect ratio, typically in the range 0.5 to 2.0.
Glyph: Glyph with an offset and advance.
GlyphRunProps: Rendering properties shared by a glyph run.
Selection: Defines a range within a text layout.
TextLayout: A Floem wrapper around a Parley text layout.
TextLayoutState: Shared text layout state used by text-based views.
TextOverflowChanged: Event fired when a text view’s overflow state changes.
TextSelection: A TextLayout-owned selection value.

Affinity: Determines how a cursor attaches to a cluster.
Alignment: Alignment of a layout.
FamilyOwned: An owned font family identifier.
FontStyle: Visual style or ‘slope’ of a font.
LineHeightValue: Specifies how line height is computed for text layout.
OverflowWrap: Control over “emergency” line-breaking.
TextWrapMode: Control over non-“emergency” line-breaking.
WordBreakStrength: Word breaking strength (corresponds to https://drafts.csswg.org/css-text/#word-break-property).

FONT_CONTEXT: Shared Parley font context used by Floem text layout construction.

paragraph_ranges: Returns the byte ranges of the source text’s logical paragraphs.