Struct StampOptions 

#[non_exhaustive]
pub struct StampOptions {
    pub position: StampPosition,
    pub margin: f64,
    pub angle: f64,
    pub opacity: f32,
    pub font: StandardFont,
    pub font_size: f32,
    pub color: Color,
}

How a stamp is drawn.

A config struct with Default. #[non_exhaustive] so a field added later is not a major break; fill one in with StampOptions::builder. The three font fields are read by EditDoc::stamp_text only; the rest apply to an image stamp too.

use pdfrum::{Color, StampOptions, StampPosition};

let draft = StampOptions::builder()
    .position(StampPosition::Center)
    .angle(45.0)
    .opacity(0.3)
    .font_size(96.0)
    .color(Color::from_rgb8(200, 0, 0))
    .build();
assert_eq!(draft.margin, 36.0);

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

position: StampPosition

Where the stamp’s box sits. StampPosition::Center by default.

margin: f64

Points between a corner-placed stamp and the crop box’s edges. 36 — half an inch — by default.

angle: f64

Degrees counter-clockwise, turned about the stamp’s own centre after it is placed. 0 by default.

opacity: f32

Constant alpha, 0.0 (invisible) to 1.0 (opaque, the default), written as an /ExtGState. Multiplied into StampOptions::color’s own alpha for text.

font: StandardFont

The face for a text stamp, one of the standard 14 — Helvetica by default. Text is encoded as WinAnsi, so a character outside Latin-1 draws as nothing.

font_size: f32

The text size in points. 36 by default.

color: Color

The text colour. Black by default.

Implementations

impl StampOptions

pub fn builder() -> StampOptionsBuilder

A builder starting from the defaults.

let options = pdfrum::StampOptions::builder().angle(45.0).build();

Trait Implementations

impl Clone for StampOptions

fn clone(&self) -> StampOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StampOptions

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

Formats the value using the given formatter.

impl Default for StampOptions

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for StampOptions

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StampOptions