Trait nannou::image::GenericImage
source · pub trait GenericImage: GenericImageView {
type InnerImage: GenericImage<Pixel = Self::Pixel>;
// Required methods
fn get_pixel_mut(&mut self, x: u32, y: u32) -> &mut Self::Pixel;
fn put_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel);
fn blend_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel);
fn inner_mut(&mut self) -> &mut Self::InnerImage;
// Provided methods
unsafe fn unsafe_put_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel) { ... }
fn copy_from<O>(
&mut self,
other: &O,
x: u32,
y: u32
) -> Result<(), ImageError>
where O: GenericImageView<Pixel = Self::Pixel> { ... }
fn copy_within(&mut self, source: Rect, x: u32, y: u32) -> bool { ... }
fn sub_image(
&mut self,
x: u32,
y: u32,
width: u32,
height: u32
) -> SubImage<&mut Self::InnerImage> { ... }
}Expand description
A trait for manipulating images.
Required Associated Types§
sourcetype InnerImage: GenericImage<Pixel = Self::Pixel>
type InnerImage: GenericImage<Pixel = Self::Pixel>
Underlying image type. This is mainly used by SubImages in order to always have a reference to the original image. This allows for less indirections and it eases the use of nested SubImages.
Required Methods§
sourcefn get_pixel_mut(&mut self, x: u32, y: u32) -> &mut Self::Pixel
fn get_pixel_mut(&mut self, x: u32, y: u32) -> &mut Self::Pixel
Gets a reference to the mutable pixel at location (x, y). Indexed from top left.
Panics
Panics if (x, y) is out of bounds.
sourcefn blend_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel)
fn blend_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel)
Put a pixel at location (x, y), taking into account alpha channels
DEPRECATED: This method will be removed. Blend the pixel directly instead.
sourcefn inner_mut(&mut self) -> &mut Self::InnerImage
fn inner_mut(&mut self) -> &mut Self::InnerImage
Returns a mutable reference to the underlying image.
Provided Methods§
sourceunsafe fn unsafe_put_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel)
unsafe fn unsafe_put_pixel(&mut self, x: u32, y: u32, pixel: Self::Pixel)
sourcefn copy_from<O>(&mut self, other: &O, x: u32, y: u32) -> Result<(), ImageError>where
O: GenericImageView<Pixel = Self::Pixel>,
fn copy_from<O>(&mut self, other: &O, x: u32, y: u32) -> Result<(), ImageError>where
O: GenericImageView<Pixel = Self::Pixel>,
Copies all of the pixels from another image into this image.
The other image is copied with the top-left corner of the other image placed at (x, y).
In order to copy only a piece of the other image, use GenericImageView::view.
You can use FlatSamples to source pixels from an arbitrary regular raster of channel
values, for example from a foreign interface or a fixed image.
Returns
Returns an error if the image is too large to be copied at the given position
sourcefn copy_within(&mut self, source: Rect, x: u32, y: u32) -> bool
fn copy_within(&mut self, source: Rect, x: u32, y: u32) -> bool
Copies all of the pixels from one part of this image to another part of this image.
The destination rectangle of the copy is specified with the top-left corner placed at (x, y).
Returns
true if the copy was successful, false if the image could not
be copied due to size constraints.
sourcefn sub_image(
&mut self,
x: u32,
y: u32,
width: u32,
height: u32
) -> SubImage<&mut Self::InnerImage>
fn sub_image( &mut self, x: u32, y: u32, width: u32, height: u32 ) -> SubImage<&mut Self::InnerImage>
Returns a mutable subimage that is a view into this image.
If you want an immutable subimage instead, use GenericImageView::view
The coordinates set the position of the top left corner of the SubImage.