Struct NopFilterSink 

pub struct NopFilterSink<'a, S> {
    is_open: bool,
    start: Option<(Fixed, Fixed)>,
    pending_element: Option<PendingElement>,
    inner: &'a mut S,
}

Command sink adapter that suppresses degenerate move and line commands.

FreeType avoids emitting empty contours and zero length lines to prevent artifacts when stem darkening is enabled. We don’t support stem darkening because it’s not enabled by any of our clients but we remove the degenerate elements regardless to match the output.

See https://gitlab.freedesktop.org/freetype/freetype/-/blob/80a507a6b8e3d2906ad2c8ba69329bd2fb2a85ef/src/psaux/pshints.c#L1786

Fields

is_open: bool

start: Option<(Fixed, Fixed)>

pending_element: Option<PendingElement>

inner: &'a mut S

Implementations

impl<'a, S> NopFilterSink<'a, S>

where S: CommandSink,

pub fn new(inner: &'a mut S) -> Self

Creates a new sink that suppresses degenerate move and line commands before forwarding the result to the given inner sink.

fn flush_pending(&mut self, for_close: bool)

Trait Implementations

impl<S> CommandSink for NopFilterSink<'_, S>

where S: CommandSink,

fn hstem(&mut self, y: Fixed, dy: Fixed)

Horizontal stem hint at y with height dy.

fn vstem(&mut self, x: Fixed, dx: Fixed)

Vertical stem hint at x with width dx.

fn hint_mask(&mut self, mask: &[u8])

Bitmask defining the hints that should be made active for the commands that follow.

fn counter_mask(&mut self, mask: &[u8])

Bitmask defining the counter hints that should be made active for the commands that follow.

fn clear_hints(&mut self)

Clear accumulated stem hints and all data derived from them.

fn move_to(&mut self, x: Fixed, y: Fixed)

fn line_to(&mut self, x: Fixed, y: Fixed)

fn curve_to( &mut self, cx1: Fixed, cy1: Fixed, cx2: Fixed, cy2: Fixed, x: Fixed, y: Fixed, )

fn close(&mut self)

fn finish(&mut self)

Called when charstring evaluation is complete.