Struct Window 

pub struct Window<'t, TElement: Copy, TGrid: Grid<TElement>> { /* private fields */ }

A window into a 2D grid.

All operations are done directly on the contained reference, but translated to where the window is.

Implementations

impl<'t, TElement: Copy, TGrid: Grid<TElement>> Window<'t, TElement, TGrid>

pub fn new( grid: &'t TGrid, xs: impl RangeBounds<usize>, ys: impl RangeBounds<usize>, ) -> Option<Self>

Create a new window into grid.

pub fn window( &self, xs: impl RangeBounds<usize>, ys: impl RangeBounds<usize>, ) -> Option<Window<'_, TElement, TGrid>>

Creates a window into the window.

Returns None in case the window does not fit.

pub fn split_horizontal( &'t self, left_width: usize, ) -> Option<(Window<'t, TElement, TGrid>, Window<'t, TElement, TGrid>)>

Splits the window horizontally, returning windows to the left and right parts.

The right window fills the remaining width, which may be zero.

Returns None for out-of-bounds.

pub fn split_vertical( &'t self, top_height: usize, ) -> Option<(Window<'t, TElement, TGrid>, Window<'t, TElement, TGrid>)>

Splits the window vertically, returning windows to the top and bottom parts.

The bottom window fills the remaining height, which may be zero.

Returns None for out-of-bounds.

Trait Implementations

impl<'t, TElement: Debug + Copy, TGrid: Debug + Grid<TElement>> Debug for Window<'t, TElement, TGrid>

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

Formats the value using the given formatter.

impl<TElement: Copy, TGrid: Grid<TElement>> Grid<TElement> for Window<'_, TElement, TGrid>

fn get_optional(&self, x: usize, y: usize) -> Option<TElement>

Get the current value at the specified position if the position is inside of bounds

fn width(&self) -> usize

the size in x-direction

fn height(&self) -> usize

the height in y-direction

fn get(&self, x: usize, y: usize) -> T

Get the current value at the specified position

fn is_in_bounds(&self, x: usize, y: usize) -> bool

Checks whether the specified signed position is in grid bounds

fn assert_in_bounds(&self, x: usize, y: usize)

Asserts that the specified unsigned position is in grid bounds.

fn get_row(&self, y: usize) -> Option<Vec<T>>

Copies a row from the grid.

fn get_col(&self, x: usize) -> Option<Vec<T>>

Copies a column from the grid.

impl<T: Grid<bool>> TryFrom<&Window<'_, bool, T>> for Bitmap

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: &Window<'_, bool, T>) -> Result<Self, Self::Error>

Performs the conversion.