Struct widgetry::geom::GeomBatch

pub struct GeomBatch {
    pub(crate) list: Vec<(FancyColor, Polygon)>,
    pub autocrop_dims: bool,
}

A mutable builder for a group of colored polygons.

Fields

list: Vec<(FancyColor, Polygon)>

autocrop_dims: bool

Implementations

impl GeomBatch

pub fn new() -> GeomBatch

Creates an empty batch.

pub fn from(list: Vec<(Color, Polygon)>) -> GeomBatch

Creates a batch of colored polygons.

pub fn push(&mut self, color: Color, p: Polygon)

Adds a single colored polygon.

pub fn fancy_push(&mut self, color: FancyColor, p: Polygon)

pub fn extend(&mut self, color: Color, polys: Vec<Polygon>)

Applies one color to many polygons.

pub fn fancy_extend(&mut self, color: FancyColor, polys: Vec<Polygon>)

pub fn append(&mut self, other: GeomBatch)

Appends all colored polygons from another batch to the current one.

pub fn consume(self) -> Vec<(FancyColor, Polygon)>

Returns the colored polygons in this batch, destroying the batch.

pub fn draw(self, g: &mut GfxCtx)

Draws the batch, consuming it. Only use this for drawing things once.

pub fn upload(self, ctx: &EventCtx) -> Drawable

Upload the batch of polygons to the GPU, returning something that can be cheaply redrawn many times later.

pub fn batch(self) -> Widget

Wrap in a Widget for layouting, so this batch can become part of a larger one.

pub fn to_btn(self, ctx: &EventCtx) -> BtnBuilder

Turn this batch into a button.

pub fn get_bounds(&self) -> Bounds

Compute the bounds of all polygons in this batch.

pub fn autocrop(self) -> GeomBatch

Sets the top-left to 0, 0. Not sure exactly when this should be used.

pub fn unioned_polygon(&self) -> Polygon

Builds a single polygon covering everything in this batch. Use to create a hitbox.

pub(crate) fn is_empty(&self) -> bool

True when the batch is empty.

pub fn get_dims(&self) -> ScreenDims

Returns the width and height of all geometry contained in the batch.

pub fn from_svg_contents(raw: Vec<u8>) -> GeomBatch

Returns a batch containing a parsed SVG string.

pub fn load_svg(prerender: &Prerender, filename: &str) -> GeomBatch

Returns a batch containing an SVG from a file.

pub fn color(self, transformation: RewriteColor) -> GeomBatch

Transforms all colors in a batch.

pub fn centered_on(self, center: Pt2D) -> GeomBatch

Translates the batch to be centered on some point.

pub fn translate(self, dx: f64, dy: f64) -> GeomBatch

Translates the batch by some offset.

pub fn rotate(self, angle: Angle) -> GeomBatch

Rotates each polygon in the batch relative to the center of that polygon.

pub fn rotate_around_batch_center(self, angle: Angle) -> GeomBatch

Rotates each polygon in the batch relative to the center of the entire batch.

pub fn scale(self, factor: f64) -> GeomBatch

Scales the batch by some factor.

Trait Implementations

impl Clone for GeomBatch

fn clone(&self) -> GeomBatch

Returns a copy of the value.

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

Performs copy-assignment from source.