Struct SubSurface 

pub struct SubSurface<S, Item> { /* private fields */ }

A surface that only uses a rectangular part of another surface.

Implementations

impl<S, Item> SubSurface<S, Item>

pub fn offset(&self) -> Point

Position of the rectangular part on the original surface.

pub fn size(&self) -> Size

Size of the rectangular part (size of the SubSurface itself).

pub fn inner(&self) -> &S

Returns a reference to the underlying surface.

pub fn inner_mut(&mut self) -> &mut S

Returns a reference to the underlying surface.

pub fn into_inner(self) -> S

Returns the underlying surface.

impl<S, Item> SubSurface<S, Item>

where S: Surface<Item>,

pub fn new(surface: S, offset: Point, size: Size) -> Self

Create a new SubSurface.

Trait Implementations

impl<S: Clone, Item: Clone> Clone for SubSurface<S, Item>

fn clone(&self) -> SubSurface<S, Item>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Debug, Item: Debug> Debug for SubSurface<S, Item>

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

Formats the value using the given formatter.

impl<S: PartialEq, Item: PartialEq> PartialEq for SubSurface<S, Item>

fn eq(&self, other: &SubSurface<S, Item>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<S, Item> Surface<Item> for SubSurface<S, Item>

where S: Surface<Item>,

fn surface_size(&self) -> Size

Surface size.

fn surface_get(&self, pt: Point) -> Option<&Item>

Get a value at (pt.x, pt.y).

fn sub_surface(&self, offset: Point, size: Size) -> SubSurface<&Self, T>

where Self: Sized,

Create a SubSurface that only uses a rectangular part of this surface.

fn offset_surface(&self, offset: Point) -> SubSurface<&Self, T>

where Self: Sized,

Create a SubSurface that only uses a rectangular part of this surface starting from (offset.x, offset.y).

fn sub_surface_mut( &mut self, offset: Point, size: Size, ) -> SubSurface<&mut Self, T>

where Self: Sized,

Create a SubSurface that only uses a rectangular part of this surface.

fn offset_surface_mut(&mut self, offset: Point) -> SubSurface<&mut Self, T>

where Self: Sized,

Create a SubSurface that only uses a rectangular part of this surface starting from (offset.x, offset.y).

fn into_sub_surface(self, offset: Point, size: Size) -> SubSurface<Self, T>

where Self: Sized,

Create a SubSurface that only uses a rectangular part of this surface.

fn into_offset_surface(self, offset: Point) -> SubSurface<Self, T>

where Self: Sized,

Create a SubSurface that only uses a rectangular part of this surface starting from (offset.x, offset.y).

impl<S, Item> SurfaceMut<Item> for SubSurface<S, Item>

where S: SurfaceMut<Item>,

fn surface_get_mut(&mut self, pt: Point) -> Option<&mut Item>

Get a mutable value at (pt.x, pt.y).

impl<S: Copy, Item: Copy> Copy for SubSurface<S, Item>

impl<S: Eq, Item: Eq> Eq for SubSurface<S, Item>

impl<S, Item> StructuralPartialEq for SubSurface<S, Item>