Struct i_slint_core::items::Layer
source · [−]#[repr(C)]pub struct Layer {
pub x: Property<Coord>,
pub y: Property<Coord>,
pub width: Property<Coord>,
pub height: Property<Coord>,
pub cache_rendering_hint: Property<bool>,
pub cached_rendering_data: CachedRenderingData,
}
Expand description
The Layer Item is not meant to be used directly by the .slint code, instead, the layer: xxx
property should be used
Fields
x: Property<Coord>
y: Property<Coord>
width: Property<Coord>
height: Property<Coord>
cache_rendering_hint: Property<bool>
cached_rendering_data: CachedRenderingData
Implementations
sourceimpl Layer
impl Layer
sourcepub const FIELD_OFFSETS: LayerFieldsOffsets = {
trait LayerMustNotImplDrop { }
impl LayerMustNotImplDrop for T where T: ::core::ops::Drop { }
impl LayerMustNotImplDrop for Layer { }
struct __MustNotImplUnpin<'__dummy_lifetime>(Property,
Property, Property, Property, Property,
CachedRenderingData,
::core::marker::PhantomData<&'__dummy_lifetime ()>);
impl <'__dummy_lifetime> Unpin for Layer where
__MustNotImplUnpin: Unpin {
}
let mut len = 0usize;
LayerFieldsOffsets{x:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
y:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
width:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
height:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
cache_rendering_hint:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
cached_rendering_data:
{
let align = ::core::mem::align_of::();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up +
::core::mem::size_of::();
unsafe {
const_field_offset::FieldOffset::new_from_offset_pinned(len_rounded_up)
}
},}
}
pub const FIELD_OFFSETS: LayerFieldsOffsets = {
trait LayerMustNotImplDrop { }
impl LayerMustNotImplDrop for T where T: ::core::ops::Drop { }
impl LayerMustNotImplDrop for Layer { }
struct __MustNotImplUnpin<'__dummy_lifetime>(Property,
Property, Property, Property, Property,
CachedRenderingData,
::core::marker::PhantomData<&'__dummy_lifetime ()>);
impl <'__dummy_lifetime> Unpin for Layer where
__MustNotImplUnpin: Unpin {
}
let mut len = 0usize;
LayerFieldsOffsets{x:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
y:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
width:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
height:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
cache_rendering_hint:
{
let align = ::core::mem::align_of::>();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up + ::core::mem::size_of::>();
unsafe {
const_field_offset::FieldOffset,
_>::new_from_offset_pinned(len_rounded_up)
}
},
cached_rendering_data:
{
let align = ::core::mem::align_of::();
let len_rounded_up =
len.wrapping_add(align).wrapping_sub(1) &
!align.wrapping_sub(1);
len =
len_rounded_up +
::core::mem::size_of::();
unsafe {
const_field_offset::FieldOffset::new_from_offset_pinned(len_rounded_up)
}
},}
}
Return a struct containing the offset of for the fields of this struct
Trait Implementations
sourceimpl HasStaticVTable<ItemVTable> for Layer
impl HasStaticVTable<ItemVTable> for Layer
sourcefn static_vtable() -> &'static ItemVTable
fn static_vtable() -> &'static ItemVTable
Safety: must be a valid VTable for Self
sourceimpl Item for Layer
impl Item for Layer
sourcefn init(self: Pin<&Self>, _window: &WindowRc)
fn init(self: Pin<&Self>, _window: &WindowRc)
This function is called by the run-time after the memory for the item has been allocated and initialized. It will be called before any user specified bindings are set. Read more
sourcefn geometry(self: Pin<&Self>) -> Rect
fn geometry(self: Pin<&Self>) -> Rect
Returns the geometry of this item (relative to its parent item)
sourcefn layout_info(
self: Pin<&Self>,
_orientation: Orientation,
_window: &WindowRc
) -> LayoutInfo
fn layout_info(
self: Pin<&Self>,
_orientation: Orientation,
_window: &WindowRc
) -> LayoutInfo
We would need max/min/preferred size, and all layout info
sourcefn input_event_filter_before_children(
self: Pin<&Self>,
_: MouseEvent,
_window: &WindowRc,
_self_rc: &ItemRc
) -> InputEventFilterResult
fn input_event_filter_before_children(
self: Pin<&Self>,
_: MouseEvent,
_window: &WindowRc,
_self_rc: &ItemRc
) -> InputEventFilterResult
Event handler for mouse and touch event. This function is called before being called on children.
Then, depending on the return value, it is called for the children, and their children, then
Self::input_event
is called on the children, and finally Self::input_event
is called
on this item again. Read more
sourcefn input_event(
self: Pin<&Self>,
_: MouseEvent,
_window: &WindowRc,
_self_rc: &ItemRc
) -> InputEventResult
fn input_event(
self: Pin<&Self>,
_: MouseEvent,
_window: &WindowRc,
_self_rc: &ItemRc
) -> InputEventResult
Handle input event for mouse and touch event
fn key_event(
self: Pin<&Self>,
_: &KeyEvent,
_window: &WindowRc
) -> KeyEventResult
fn focus_event(
self: Pin<&Self>,
_: &FocusEvent,
_window: &WindowRc
) -> FocusEventResult
fn render(
self: Pin<&Self>,
backend: &mut &'_ mut dyn ItemRenderer,
self_rc: &ItemRc
) -> RenderingResult
sourceimpl ItemConsts for Layer
impl ItemConsts for Layer
sourceconst cached_rendering_data_offset: FieldOffset<Layer, CachedRenderingData> = Layer::FIELD_OFFSETS.cached_rendering_data.as_unpinned_projection()
const cached_rendering_data_offset: FieldOffset<Layer, CachedRenderingData> = Layer::FIELD_OFFSETS.cached_rendering_data.as_unpinned_projection()
offset in bytes from the *const ItemImpl. isize::MAX means None Read more
impl<'__dummy_lifetime> Unpin for Layer where
__MustNotImplUnpin<'__dummy_lifetime>: Unpin,
Auto Trait Implementations
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more