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CanvasDesc

Struct CanvasDesc

pub struct CanvasDesc {
    pub id: u32,
    pub name: &'static str,
    pub rect: [i32; 4],
    pub view: CanvasView,
    pub ver: u32,
    pub content: Rc<dyn CanvasContent>,
    pub gpu: CanvasGpu,
    pub exact_pan: bool,
}

Expand description

a canvas for ui.canvas_gpu

Fields§

§id: u32

its identity in the window (the tiles live as long as it is drawn; ui.canvas_gpu_damage)

§name: &'static str

its name for jfgui_GPU_CANVAS_CPU / jfgui_GPU_CANVAS_PAN (“image”, “diagram”, …)

§rect: [i32; 4]

the window rectangle x, y, w, h the content fills, opaque (inside the custom command’s box)

§view: CanvasView§ver: u32

stands for everything the content shows: another value drops its tiles

§content: Rc<dyn CanvasContent>§gpu: CanvasGpu§exact_pan: bool

the raster does not depend on the place: a move by whole pixels must match byte for byte (jfgui_GPU_VERIFY fails on a difference; else it is counted, GpuOutput::canvas_diff_*)

Auto Trait Implementations§

impl !RefUnwindSafe for CanvasDesc

impl !Send for CanvasDesc

impl !Sync for CanvasDesc

impl !UnwindSafe for CanvasDesc

impl Forget for CanvasDesc

impl Freeze for CanvasDesc

impl Unpin for CanvasDesc

impl UnsafeUnpin for CanvasDesc

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.