Struct DrawContext 

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

A context for custom drawing.

This is a limited version of the keru_draw [Renderer] that exposes the methods for drawing, but not the internal ones like [Renderer::clear_for_new_frame].

Implementations

impl<'a> DrawContext<'a>

pub fn draw_box(&mut self, params: Rectangle)

Draw a box/rectangle.

pub fn draw_image( &mut self, image: LoadedImage, x: f32, y: f32, width: f32, height: f32, )

Draw an image.

pub fn draw_circle(&mut self, params: Circle)

Draw a filled circle.

pub fn draw_ring(&mut self, params: CircleRing)

Draw a ring (hollow circle).

pub fn draw_arc(&mut self, params: CircleArc)

Draw an arc.

pub fn draw_pie(&mut self, params: CirclePie)

Draw a pie slice.

pub fn draw_segment(&mut self, params: Segment)

Draw a line segment.

pub fn draw_grid(&mut self, params: Grid)

Draw a grid.

pub fn draw_triangle(&mut self, params: Triangle)

Draw a triangle.

pub fn draw_hexagon(&mut self, params: Hexagon)

Draw a hexagon.

pub fn draw_quadratic_bezier(&mut self, params: QuadraticBezier)

Draw a quadratic bezier curve.

pub fn draw_dashed_box_outline(&mut self, params: DashedBoxOutline)

Draw a dashed box outline.

pub fn draw_dashed_hexagon_outline(&mut self, params: DashedHexagonOutline)

Draw a dashed hexagon outline.

pub fn set_transform(&mut self, transform: Transform)

Set a transform for subsequent draw calls.

pub fn clear_transform(&mut self)

Clear the current transform, resetting to identity.

pub fn insert_clip_rect(&mut self, clip_rect: ClipRect) -> ClipRectHandle

Create a clip rect for this frame.

pub fn set_clip_rect(&mut self, clip_rect: ClipRect)

Set a clip rect for subsequent draw calls.

pub fn clear_clip_rect(&mut self)

Clear the current clip rect, resetting to no clip.

pub fn load_svg( &mut self, svg_data: &[u8], width: u32, height: u32, ) -> Option<LoadedImage>

Load and rasterize an SVG, returning the loaded image.

Must be unloaded manually with Self::unload_image().

pub fn rerasterize_svg_if_needed( &mut self, loaded: &mut LoadedImage, width: u32, height: u32, ) -> bool

Rerasterize an SVG at a new size if needed.

pub fn unload_svg(&mut self, loaded: &LoadedImage)

Remove a loaded SVG and free its atlas space..

Must be unloaded manually with Self::unload_image().

pub fn load_rgba8_image( &mut self, rgba_data: &[u8], width: u32, height: u32, ) -> Option<LoadedImage>

Load a raster image from raw RGBA8 bytes.

Returns None if the image couldn’t be stored in the atlas..

Must be unloaded manually with Self::unload_image().

pub fn load_encoded_image(&mut self, image_data: &[u8]) -> Option<LoadedImage>

Load a raster image from encoded bytes (PNG, JPEG, etc.).

Returns None if the image couldn’t be stored in the atlas..

Must be unloaded manually with Self::unload_image().

pub fn unload_image(&mut self, loaded: &LoadedImage)

Remove a loaded image and free its atlas space..

Must be unloaded manually with Self::unload_image().