Struct titanium::desktop::gui::libdruid::piet::CairoRenderContext

pub struct CairoRenderContext<'a> { /* private fields */ }

Implementations

impl<'a> CairoRenderContext<'a>

pub fn new(ctx: &Context) -> CairoRenderContext<'_>

Create a new Cairo back-end.

At the moment, it uses the “toy text API” for text layout, but when we change to a more sophisticated text layout approach, we’ll probably need a factory for that as an additional argument.

Trait Implementations

impl<'a> RenderContext for CairoRenderContext<'a>

type Brush = Brush

The type of a “brush”.

type Text = CairoText

An associated factory for creating text layouts and related resources.

type TextLayout = CairoTextLayout

The type use to represent text layout objects.

type Image = CairoImage

The associated type of an image.

fn status(&mut self) -> Result<(), Error>

Report an internal error.

fn clear(&mut self, region: impl Into<Option<Rect>>, color: Color)

Replace a region of the canvas with the provided Color.

fn solid_brush(&mut self, color: Color) -> Brush

Create a new brush resource.

fn gradient( &mut self, gradient: impl Into<FixedGradient> ) -> Result<Brush, Error>

Create a new gradient brush.

fn fill( &mut self, shape: impl Shape, brush: &impl IntoBrush<CairoRenderContext<'a>> )

Fill a Shape, using the non-zero fill rule.

fn fill_even_odd( &mut self, shape: impl Shape, brush: &impl IntoBrush<CairoRenderContext<'a>> )

Fill a shape, using the even-odd fill rule.

fn clip(&mut self, shape: impl Shape)

Clip to a Shape.

fn stroke( &mut self, shape: impl Shape, brush: &impl IntoBrush<CairoRenderContext<'a>>, width: f64 )

Stroke a Shape, using the default StrokeStyle.

fn stroke_styled( &mut self, shape: impl Shape, brush: &impl IntoBrush<CairoRenderContext<'a>>, width: f64, style: &StrokeStyle )

Stroke a Shape, providing a custom StrokeStyle.

fn text(&mut self) -> &mut <CairoRenderContext<'a> as RenderContext>::Text

Returns a reference to a shared Text object.

fn draw_text( &mut self, layout: &<CairoRenderContext<'a> as RenderContext>::TextLayout, pos: impl Into<Point> )

Draw a TextLayout.

fn save(&mut self) -> Result<(), Error>

Save the context state.

fn restore(&mut self) -> Result<(), Error>

Restore the context state.

fn finish(&mut self) -> Result<(), Error>

Finish any pending operations.

fn transform(&mut self, transform: Affine)

Apply a transform.

fn current_transform(&self) -> Affine

Returns the transformations currently applied to the context.

fn make_image( &mut self, width: usize, height: usize, buf: &[u8], format: ImageFormat ) -> Result<<CairoRenderContext<'a> as RenderContext>::Image, Error>

Create a new Image from a pixel buffer.

fn draw_image( &mut self, image: &<CairoRenderContext<'a> as RenderContext>::Image, dst_rect: impl Into<Rect>, interp: InterpolationMode )

Draw an Image into the provided Rect.

fn draw_image_area( &mut self, image: &<CairoRenderContext<'a> as RenderContext>::Image, src_rect: impl Into<Rect>, dst_rect: impl Into<Rect>, interp: InterpolationMode )

Draw a specified area of an Image.

fn capture_image_area( &mut self, src_rect: impl Into<Rect> ) -> Result<<CairoRenderContext<'a> as RenderContext>::Image, Error>

Create an Image of the specified region of the context.

fn blurred_rect( &mut self, rect: Rect, blur_radius: f64, brush: &impl IntoBrush<CairoRenderContext<'a>> )

Draw a rectangle with Gaussian blur.

fn with_save( &mut self, f: impl FnOnce(&mut Self) -> Result<(), Error> ) -> Result<(), Error>

Do graphics operations with the context state saved and then restored.

impl<'a> IntoBrush<CairoRenderContext<'a>> for Brush