Trait webrender::util::MatrixHelpers

pub trait MatrixHelpers<Src, Dst> {
    // Required methods
    fn preserves_2d_axis_alignment(&self) -> bool;
    fn has_perspective_component(&self) -> bool;
    fn has_2d_inverse(&self) -> bool;
    fn exceeds_2d_scale(&self, limit: f64) -> bool;
    fn inverse_project(
        &self,
        target: &Point2D<f32, Dst>,
    ) -> Option<Point2D<f32, Src>>;
    fn inverse_rect_footprint(
        &self,
        rect: &Box2D<f32, Dst>,
    ) -> Option<Box2D<f32, Src>>;
    fn transform_kind(&self) -> TransformedRectKind;
    fn is_simple_translation(&self) -> bool;
    fn is_simple_2d_translation(&self) -> bool;
    fn is_2d_scale_translation(&self) -> bool;
    fn determinant_2d(&self) -> f32;
    fn flatten_z_output(&mut self);
    fn cast_unit<NewSrc, NewDst>(&self) -> Transform3D<f32, NewSrc, NewDst>;
}

Required Methods

fn preserves_2d_axis_alignment(&self) -> bool

A port of the preserves2dAxisAlignment function in Skia. Defined in the SkMatrix44 class.

fn has_perspective_component(&self) -> bool

fn has_2d_inverse(&self) -> bool

fn exceeds_2d_scale(&self, limit: f64) -> bool

Check if the matrix post-scaling on either the X or Y axes could cause geometry transformed by this matrix to have scaling exceeding the supplied limit.

fn inverse_project( &self, target: &Point2D<f32, Dst>, ) -> Option<Point2D<f32, Src>>

fn inverse_rect_footprint( &self, rect: &Box2D<f32, Dst>, ) -> Option<Box2D<f32, Src>>

fn transform_kind(&self) -> TransformedRectKind

fn is_simple_translation(&self) -> bool

fn is_simple_2d_translation(&self) -> bool

fn is_2d_scale_translation(&self) -> bool

fn determinant_2d(&self) -> f32

Return the determinant of the 2D part of the matrix.

fn flatten_z_output(&mut self)

Turn Z transformation into identity. This is useful when crossing “flat” transform styled stacking contexts upon traversing the coordinate systems.

fn cast_unit<NewSrc, NewDst>(&self) -> Transform3D<f32, NewSrc, NewDst>

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<Src, Dst> MatrixHelpers<Src, Dst> for Transform3D<f32, Src, Dst>

fn inverse_project( &self, target: &Point2D<f32, Dst>, ) -> Option<Point2D<f32, Src>>

Find out a point in Src that would be projected into the target.

fn preserves_2d_axis_alignment(&self) -> bool

fn has_perspective_component(&self) -> bool

fn has_2d_inverse(&self) -> bool

fn exceeds_2d_scale(&self, limit: f64) -> bool

fn inverse_rect_footprint( &self, rect: &Box2D<f32, Dst>, ) -> Option<Box2D<f32, Src>>

fn transform_kind(&self) -> TransformedRectKind

fn is_simple_translation(&self) -> bool

fn is_simple_2d_translation(&self) -> bool

fn is_2d_scale_translation(&self) -> bool

fn determinant_2d(&self) -> f32

fn flatten_z_output(&mut self)

fn cast_unit<NewSrc, NewDst>(&self) -> Transform3D<f32, NewSrc, NewDst>

Implementors