Struct TextFragment 

pub(crate) struct TextFragment {
    pub base: BaseFragment,
    pub selected_style: ArcRefCell<Arc<ComputedValues>>,
    pub font_metrics: Arc<FontMetrics>,
    pub font_key: FontInstanceKey,
    pub glyphs: Vec<Arc<GlyphStore>>,
    pub justification_adjustment: Au,
    pub offsets: Option<Box<TextRunOffsets>>,
    pub is_empty_for_text_cursor: bool,
}

Fields

base: BaseFragment

selected_style: ArcRefCell<Arc<ComputedValues>>

font_metrics: Arc<FontMetrics>

font_key: FontInstanceKey

glyphs: Vec<Arc<GlyphStore>>

justification_adjustment: Au

Extra space to add for each justification opportunity.

offsets: Option<Box<TextRunOffsets>>

When necessary, this field store the TextRunOffsets for a particular [TextRunLineItem]. This is currently only used inside of text inputs.

is_empty_for_text_cursor: bool

Whether or not this TextFragment is an empty fragment added for the benefit of placing a text cursor on an otherwise empty editable line.

Implementations

impl TextFragment

pub fn print(&self, tree: &mut PrintTree)

pub(crate) fn point_is_within_vertical_boundaries( &self, point_in_fragment: Point2D<Au, CSSPixel>, ) -> bool

Whether or not the given point is within the vertical boundaries of this TextFragment.

pub(crate) fn distance_to_point_for_glyph_offset( &self, point_in_fragment: Point2D<Au, CSSPixel>, ) -> Au

Find the distance between for point relative to a TextFragment for the purposes of finding a glyph offset. This is used to identify the most relevant fragment for glyph offset queries during click handling.

pub(crate) fn character_offset( &self, point_in_fragment: Point2D<Au, CSSPixel>, ) -> Option<usize>

Given a point relative to this TextFragment, find the most appropriate character offset.

Note that the given point may be outside the TextFragment’s content rect:

• If the point is vertically above the TextFragment the first offset will be returned.
• If the point is vertically below the TextFragment, None will be returned.

Trait Implementations

impl MallocSizeOf for TextFragment

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.