Struct Backdrop 

pub struct Backdrop { /* private fields */ }

A scene shown through a window of a GlyphBuffer’s cells.

Implementations

impl Backdrop

pub fn scene(&self) -> &GlyphBuffer

The picture shown: its cells, rectangles and sprites.

pub fn clip(&self) -> Rect

The window, in console cells; inside the buffer.

pub fn clip_px(&self) -> PxRect

The window in console pixels.

pub fn origin_px(&self) -> (f32, f32)

The scene pixel at the window’s top-left. Fractions pan smoothly; it may lie outside the scene (the clear colour shows there).

pub fn zoom(&self) -> u8

Console pixels per scene pixel: 1 to MAX_ZOOM.

pub fn scene_offset(&self, scale: u32) -> (i64, i64)

Where the scene’s top-left pixel is drawn, in window pixels right of and below the window’s top-left, when a console pixel is scale window pixels: the origin times zoom × scale, rounded to whole window pixels so that glyphs stay sharp. Every renderer places the scene with this, and draws a scene pixel zoom × scale pixels big.

Trait Implementations

impl Clone for Backdrop

fn clone(&self) -> Backdrop

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Backdrop

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Backdrop

fn eq(&self, other: &Backdrop) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Backdrop