Struct buffer_graphics_lib::Graphics

pub struct Graphics<'buffer> { /* private fields */ }

Implementations

impl Graphics<'_>

pub fn index(&self, x: usize, y: usize) -> usize

Convert an x,y coord to idx for use with self.pixels

pub fn width(&self) -> usize

pub fn height(&self) -> usize

pub fn is_on_screen(&self, point: Coord) -> bool

impl Graphics<'_>

pub fn get_translate(&self) -> Coord

Get the canvas offset in pixels

pub fn set_translate(&mut self, new_value: Coord)

Set the canvas offset in pixels

All drawing commands will be offset by this value

pub fn update_translate(&mut self, delta: Coord)

Adds delta to the current canvas offset

pub fn copy_to_image(&self) -> Image

Copy entire pixels array to an image

pub fn get_px_for_char(x: usize, y: usize, size: TextSize) -> (usize, usize)

Get top left pixel coord for letter px coord

pub fn get_text_size(text: &str, width: usize, size: TextSize) -> (usize, usize)

Get width and height for string

Arguments

• text - The string to be measured
• width - The line width in characters
• size - The text size to use when measuring

Returns

The width and height of the string in pixels

pub fn draw_image<P: Into<Coord>>(&mut self, xy: P, image: &Image)

Draw an image at x, y

pub fn draw_indexed_image<P: Into<Coord>>(&mut self, xy: P, image: &IndexedImage)

Draw an indexed image at x, y

pub fn draw_arc(
&mut self,
center: Coord,
angle_start: isize,
angle_end: isize,
radius: usize,
close: bool,
color: Color
)

pub fn draw_line<P1: Into<Coord>, P2: Into<Coord>>(
&mut self,
start: P1,
end: P2,
color: Color
)

pub fn draw_offset<T, P: Into<Coord>>(
&mut self,
xy: P,
renderable: &dyn Renderable<T>
)

Draw renderable offset by [xy]

pub fn draw<T>(&mut self, renderable: &dyn Renderable<T>)

Draw renderable

pub fn update_pixel(&mut self, x: isize, y: isize, color: Color)

Update a pixel color, using Graphics::set_pixel or Graphics::blend_pixel depending on whether colors alpha is 255 or not

pub fn clear(&mut self, color: Color)

Sets every pixel to the same color, this ignores translate

pub fn draw_letter(
&mut self,
pos: (isize, isize),
chr: char,
size: TextSize,
color: Color
)

Draw a letter at pos

pub fn draw_ascii_letter(
&mut self,
pos: (isize, isize),
code: u8,
size: TextSize,
color: Color
)

pub fn draw_ascii<P: Into<TextPos>, F: Into<TextFormat>>(
&mut self,
text: &[Vec<u8>],
pos: P,
format: F
)

Should only be used by Text::render text param must already be corrected wrapped

pub fn draw_text<P: Into<TextPos>, F: Into<TextFormat>>(
&mut self,
text: &str,
pos: P,
format: F
)

pub fn draw_rect<R: Into<Rect>>(&mut self, rect: R, draw_type: DrawType)

pub fn draw_circle<C: Into<Circle>>(&mut self, circle: C, draw_type: DrawType)

pub fn draw_polygon<P: Into<Polygon>>(&mut self, polygon: P, draw_type: DrawType)

pub fn draw_triangle<T: Into<Triangle>>(
&mut self,
triangle: T,
draw_type: DrawType
)

pub fn draw_ellipse<E: Into<Ellipse>>(&mut self, ellipse: E, draw_type: DrawType)

pub fn blend_pixel(&mut self, x: isize, y: isize, color: Color)

Set the RGB values for a pixel by blending it with the provided color This method uses alpha blending, note that the canvas pixels always have 255 alpha

pub fn set_pixel(&mut self, x: isize, y: isize, color: Color)

Set the RGB values for a pixel

Generally you should use Graphics::update_pixel instead

This ignores alpha, so 255,0,0,0 will draw a red pixel

impl<'buffer> Graphics<'_>

pub fn new(
buffer: &'buffer mut [u8],
width: usize,
height: usize
) -> Result<Graphics<'buffer>, GraphicsError>

pub fn new_unchecked(
buffer: &'buffer mut [u8],
width: usize,
height: usize
) -> Graphics<'buffer>