Struct ShapedLine 

pub struct ShapedLine {
    pub text: SharedString,
    /* private fields */
}

A line of text that has been shaped and decorated.

Fields

text: SharedString

The text that was shaped for this line.

Implementations

impl ShapedLine

pub fn cursor(&self) -> Option<ShapedLineCursor<'_>>

Returns a forward-only cursor for this shaped line.

Returns None for a line whose length was adjusted with ShapedLine::with_len (e.g. when rendering invisibles): its glyph indices no longer correspond to its text, so it cannot be split.

pub fn len(&self) -> usize

The length of the line in utf-8 bytes.

pub fn with_len(self, len: usize) -> Self

Override the len, useful if you’re rendering text a as text b (e.g. rendering invisibles).

pub fn paint( &self, origin: Point<Pixels>, line_height: Pixels, window: &mut Window, cx: &mut App, ) -> Result<()>

Paint the line of text to the window.

pub fn paint_background( &self, origin: Point<Pixels>, line_height: Pixels, window: &mut Window, cx: &mut App, ) -> Result<()>

Paint the background of the line to the window.

pub fn paint_shadow( &self, origin: Point<Pixels>, line_height: Pixels, shadow: &TextShadow, window: &mut Window, cx: &mut App, ) -> Result<()>

Paint a shadow behind the text by rendering glyphs with offset and shadow color.

pub fn split_at(&self, byte_index: usize) -> (ShapedLine, ShapedLine)

Split this shaped line at a byte index, returning (prefix, suffix).

• prefix contains glyphs for bytes [0, byte_index) with original positions. Its width equals the x-advance up to the split point.
• suffix contains glyphs for bytes [byte_index, len) with positions shifted left so the first glyph starts at x=0, and byte indices rebased to 0.
• Decoration runs are partitioned at the boundary; a run that straddles it is split into two with adjusted lengths.
• font_size, ascent, and descent are copied to both halves.

Trait Implementations

impl Clone for ShapedLine

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ShapedLine

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ShapedLine

fn default() -> Self

Returns the “default value” for a type.

impl Deref for ShapedLine

type Target = Arc<LineLayout>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for ShapedLine

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.