pub struct Node { /* private fields */ }
Expand description
Base component for a UI node, which also provides the computed size of the node.
§See also
node_bundles
for the list of built-in bundles that set up UI nodeRelativeCursorPosition
to obtain the cursor position relative to this nodeInteraction
to obtain the interaction state of this node
Implementations§
§impl Node
impl Node
pub const fn size(&self) -> Vec2
pub const fn size(&self) -> Vec2
The calculated node size as width and height in logical pixels.
Automatically calculated by super::layout::ui_layout_system
.
Examples found in repository?
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fn mouse_scroll(
mut mouse_wheel_events: EventReader<MouseWheel>,
mut query_list: Query<(&mut ScrollingList, &mut Style, &Parent, &Node)>,
query_node: Query<&Node>,
) {
for mouse_wheel_event in mouse_wheel_events.read() {
for (mut scrolling_list, mut style, parent, list_node) in &mut query_list {
let items_height = list_node.size().y;
let container_height = query_node.get(parent.get()).unwrap().size().y;
let max_scroll = (items_height - container_height).max(0.);
let dy = match mouse_wheel_event.unit {
MouseScrollUnit::Line => mouse_wheel_event.y * 20.,
MouseScrollUnit::Pixel => mouse_wheel_event.y,
};
scrolling_list.position += dy;
scrolling_list.position = scrolling_list.position.clamp(-max_scroll, 0.);
style.top = Val::Px(scrolling_list.position);
}
}
}
pub const fn stack_index(&self) -> u32
pub const fn stack_index(&self) -> u32
The order of the node in the UI layout. Nodes with a higher stack index are drawn on top of and recieve interactions before nodes with lower stack indices.
pub const fn unrounded_size(&self) -> Vec2
pub const fn unrounded_size(&self) -> Vec2
The calculated node size as width and height in logical pixels before rounding.
Automatically calculated by super::layout::ui_layout_system
.
pub fn physical_size(&self, scale_factor: f32, ui_scale: f32) -> Vec2
pub fn physical_size(&self, scale_factor: f32, ui_scale: f32) -> Vec2
Returns the size of the node in physical pixels based on the given scale factor and UiScale
.
pub fn logical_rect(&self, transform: &GlobalTransform) -> Rect
pub fn logical_rect(&self, transform: &GlobalTransform) -> Rect
Returns the logical pixel coordinates of the UI node, based on its GlobalTransform
.
pub fn physical_rect(
&self,
transform: &GlobalTransform,
scale_factor: f32,
ui_scale: f32
) -> Rect
pub fn physical_rect( &self, transform: &GlobalTransform, scale_factor: f32, ui_scale: f32 ) -> Rect
Returns the physical pixel coordinates of the UI node, based on its GlobalTransform
and the scale factor.
pub fn outline_width(&self) -> f32
pub fn outline_width(&self) -> f32
Returns the thickness of the UI node’s outline.
If this value is negative or 0.
then no outline will be rendered.
Trait Implementations§
§impl Component for Node
impl Component for Node
§type Storage = TableStorage
type Storage = TableStorage
TableStorage
or SparseStorage
.§impl FromReflect for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
impl FromReflect for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
§fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<Node>
fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<Node>
Self
from a reflected value.§fn take_from_reflect(
reflect: Box<dyn Reflect>
) -> Result<Self, Box<dyn Reflect>>
fn take_from_reflect( reflect: Box<dyn Reflect> ) -> Result<Self, Box<dyn Reflect>>
Self
using,
constructing the value using from_reflect
if that fails. Read more§impl GetTypeRegistration for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
impl GetTypeRegistration for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
§impl Reflect for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
impl Reflect for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
§fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
fn get_represented_type_info(&self) -> Option<&'static TypeInfo>
§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut dyn Any
.§fn as_reflect(&self) -> &(dyn Reflect + 'static)
fn as_reflect(&self) -> &(dyn Reflect + 'static)
§fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)
fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)
§fn clone_value(&self) -> Box<dyn Reflect>
fn clone_value(&self) -> Box<dyn Reflect>
Reflect
trait object. Read more§fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>
fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>
§fn apply(&mut self, value: &(dyn Reflect + 'static))
fn apply(&mut self, value: &(dyn Reflect + 'static))
§fn reflect_kind(&self) -> ReflectKind
fn reflect_kind(&self) -> ReflectKind
§fn reflect_ref(&self) -> ReflectRef<'_>
fn reflect_ref(&self) -> ReflectRef<'_>
§fn reflect_mut(&mut self) -> ReflectMut<'_>
fn reflect_mut(&mut self) -> ReflectMut<'_>
§fn reflect_owned(self: Box<Node>) -> ReflectOwned
fn reflect_owned(self: Box<Node>) -> ReflectOwned
§fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>
fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>
§fn reflect_hash(&self) -> Option<u64>
fn reflect_hash(&self) -> Option<u64>
§fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>
fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>
§fn serializable(&self) -> Option<Serializable<'_>>
fn serializable(&self) -> Option<Serializable<'_>>
§fn is_dynamic(&self) -> bool
fn is_dynamic(&self) -> bool
§impl Struct for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
impl Struct for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
§fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>
fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>
name
as a &dyn Reflect
.§fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>
fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>
name
as a
&mut dyn Reflect
.§fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>
fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>
index
as a
&dyn Reflect
.§fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>
fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>
index
as a &mut dyn Reflect
.§fn iter_fields(&self) -> FieldIter<'_> ⓘ
fn iter_fields(&self) -> FieldIter<'_> ⓘ
§fn clone_dynamic(&self) -> DynamicStruct
fn clone_dynamic(&self) -> DynamicStruct
DynamicStruct
.§impl TypePath for Node
impl TypePath for Node
§fn short_type_path() -> &'static str
fn short_type_path() -> &'static str
§fn type_ident() -> Option<&'static str>
fn type_ident() -> Option<&'static str>
§fn crate_name() -> Option<&'static str>
fn crate_name() -> Option<&'static str>
§impl Typed for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
impl Typed for Nodewhere
Node: Any + Send + Sync,
u32: FromReflect + TypePath,
Vec2: FromReflect + TypePath,
f32: FromReflect + TypePath,
impl Copy for Node
Auto Trait Implementations§
impl RefUnwindSafe for Node
impl Send for Node
impl Sync for Node
impl Unpin for Node
impl UnwindSafe for Node
Blanket Implementations§
§impl<T, U> AsBindGroupShaderType<U> for T
impl<T, U> AsBindGroupShaderType<U> for T
§fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U
T
ShaderType
for self
. When used in AsBindGroup
derives, it is safe to assume that all images in self
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T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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fn borrow_mut(&mut self) -> &mut T
§impl<C> Bundle for Cwhere
C: Component,
impl<C> Bundle for Cwhere
C: Component,
fn component_ids( components: &mut Components, storages: &mut Storages, ids: &mut impl FnMut(ComponentId) )
unsafe fn from_components<T, F>(ctx: &mut T, func: &mut F) -> C
§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
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(where Trait: Downcast
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§impl<C> DynamicBundle for Cwhere
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§impl<T> DynamicTypePath for Twhere
T: TypePath,
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T: TypePath,
§fn reflect_type_path(&self) -> &str
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TypePath::type_path
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§fn reflect_type_ident(&self) -> Option<&str>
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TypePath::type_ident
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TypePath::crate_name
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§impl<S> FromSample<S> for S
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fn from_sample_(s: S) -> S
§impl<T> FromWorld for Twhere
T: Default,
impl<T> FromWorld for Twhere
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§fn from_world(_world: &mut World) -> T
fn from_world(_world: &mut World) -> T
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using data from the given World
.§impl<T> GetPath for T
impl<T> GetPath for T
§fn reflect_path<'p>(
&self,
path: impl ReflectPath<'p>
) -> Result<&(dyn Reflect + 'static), ReflectPathError<'p>>
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