Struct TextState 

pub struct TextState {
    pub font: Option<(Arc<Font>, f32)>,
    pub font_source: Option<ObjRef>,
    pub char_space: f32,
    pub word_space: f32,
    pub horz_scale: f32,
    pub leading: f32,
    pub rise: f32,
    pub render_mode: TextRenderMode,
    pub stroke_ctm: [f32; 4],
}

The text-showing parameters (ISO 32000-1 table 105).

Equality compares the font by its identity rather than its contents: a Font is a large loaded object with no meaningful structural equality, and two states holding the same Arc are the same state.

Fields

font: Option<(Arc<Font>, f32)>

The font and its size. Tf always sets the size, and sets the font only when the name resolved — so a bad /Font name changes the size and leaves the font standing.

font_source: Option<ObjRef>

The /Font resource entry the current font came from, so a regenerated content stream can name the same object. None when the resource was written inline, and therefore has no object to name.

char_space: f32

Tc, added after each glyph.

word_space: f32

Tw, added after each single-byte space.

horz_scale: f32

Tz as a fraction: 150 Tz is 1.5.

leading: f32

TL, the distance between baselines.

rise: f32

Ts, the baseline offset.

render_mode: TextRenderMode

Tr.

stroke_ctm: [f32; 4]

The 2×2 linear part of the CTM at the Tj, stored as [a, c, b, d].

Set only when Self::render_mode strokes (modes 1, 2, 5, 6); a fill keeps the identity [1, 0, 0, 1]. The transposition is the oracle’s four-float slot (text_ctm[1] = ctm.c, text_ctm[2] = ctm.b): a stroke’s width is measured in user space (ISO 32000-1 §8.4.3.2), so a scaling CTM has to be folded into the device matrix rather than left on the text matrix, and this is the matrix that split consumes.

Trait Implementations

impl Clone for TextState

fn clone(&self) -> TextState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextState

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

Formats the value using the given formatter.

impl Default for TextState

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for TextState

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.