Trait runa_wayland_protocols::stable::viewporter::wp_viewport::v1::RequestDispatch

pub trait RequestDispatch<Ctx> {
    type Error;
    type DestroyFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetSourceFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetDestinationFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;

    // Required methods
    fn destroy<'a>(ctx: &'a mut Ctx, object_id: u32) -> Self::DestroyFut<'a>;
    fn set_source<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        x: Fixed,
        y: Fixed,
        width: Fixed,
        height: Fixed
    ) -> Self::SetSourceFut<'a>;
    fn set_destination<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        width: i32,
        height: i32
    ) -> Self::SetDestinationFut<'a>;
}

Required Associated Types

type Error

type DestroyFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by destroy

type SetSourceFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_source

type SetDestinationFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_destination

Required Methods

fn destroy<'a>(ctx: &'a mut Ctx, object_id: u32) -> Self::DestroyFut<'a>

remove scaling and cropping from the surface

The associated wl_surface’s crop and scale state is removed. The change is applied on the next wl_surface.commit.

fn set_source<'a>( ctx: &'a mut Ctx, object_id: u32, x: Fixed, y: Fixed, width: Fixed, height: Fixed ) -> Self::SetSourceFut<'a>

set the source rectangle for cropping

Set the source rectangle of the associated wl_surface. See wp_viewport for the description, and relation to the wl_buffer size.

If all of x, y, width and height are -1.0, the source rectangle is unset instead. Any other set of values where width or height are zero or negative, or x or y are negative, raise the bad_value protocol error.

The crop and scale state is double-buffered state, and will be applied on the next wl_surface.commit.

fn set_destination<'a>( ctx: &'a mut Ctx, object_id: u32, width: i32, height: i32 ) -> Self::SetDestinationFut<'a>

set the surface size for scaling

Set the destination size of the associated wl_surface. See wp_viewport for the description, and relation to the wl_buffer size.

If width is -1 and height is -1, the destination size is unset instead. Any other pair of values for width and height that contains zero or negative values raises the bad_value protocol error.

The crop and scale state is double-buffered state, and will be applied on the next wl_surface.commit.

Implementors