Struct bevy::ui::RelativeCursorPosition

pub struct RelativeCursorPosition {
    pub normalized_visible_node_rect: Rect,
    pub normalized: Option<Vec2>,
}
Expand description

A component storing the position of the mouse relative to the node, (0., 0.) being the top-left corner and (1., 1.) being the bottom-right If the mouse is not over the node, the value will go beyond the range of (0., 0.) to (1., 1.)

It can be used alongside Interaction to get the position of the press.

The component is updated when it is in the same entity with Node.

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§normalized_visible_node_rect: Rect

Visible area of the Node relative to the size of the entire Node.

§normalized: Option<Vec2>

Cursor position relative to the size and position of the Node. A None value indicates that the cursor position is unknown.

Implementations§

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impl RelativeCursorPosition

pub fn mouse_over(&self) -> bool

A helper function to check if the mouse is over the node

Examples found in repository?
examples/ui/relative_cursor_position.rs (line 90)
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fn relative_cursor_position_system(
    relative_cursor_position_query: Query<&RelativeCursorPosition>,
    mut output_query: Query<&mut Text>,
) {
    let relative_cursor_position = relative_cursor_position_query.single();

    let mut output = output_query.single_mut();

    output.sections[0].value =
        if let Some(relative_cursor_position) = relative_cursor_position.normalized {
            format!(
                "({:.1}, {:.1})",
                relative_cursor_position.x, relative_cursor_position.y
            )
        } else {
            "unknown".to_string()
        };

    output.sections[0].style.color = if relative_cursor_position.mouse_over() {
        Color::srgb(0.1, 0.9, 0.1)
    } else {
        Color::srgb(0.9, 0.1, 0.1)
    };
}

Trait Implementations§

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impl Clone for RelativeCursorPosition

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fn clone(&self) -> RelativeCursorPosition

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Component for RelativeCursorPosition
where RelativeCursorPosition: Send + Sync + 'static,

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const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table

A constant indicating the storage type used for this component.
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fn register_component_hooks(_hooks: &mut ComponentHooks)

Called when registering this component, allowing mutable access to its ComponentHooks.
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impl Debug for RelativeCursorPosition

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for RelativeCursorPosition

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fn default() -> RelativeCursorPosition

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for RelativeCursorPosition

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fn deserialize<__D>( __deserializer: __D, ) -> Result<RelativeCursorPosition, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl FromReflect for RelativeCursorPosition
where RelativeCursorPosition: Any + Send + Sync, Rect: FromReflect + TypePath + RegisterForReflection, Option<Vec2>: FromReflect + TypePath + RegisterForReflection,

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fn from_reflect( reflect: &(dyn Reflect + 'static), ) -> Option<RelativeCursorPosition>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect>, ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl GetTypeRegistration for RelativeCursorPosition
where RelativeCursorPosition: Any + Send + Sync, Rect: FromReflect + TypePath + RegisterForReflection, Option<Vec2>: FromReflect + TypePath + RegisterForReflection,

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fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.
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fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type. Read more
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impl PartialEq for RelativeCursorPosition

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fn eq(&self, other: &RelativeCursorPosition) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Reflect for RelativeCursorPosition
where RelativeCursorPosition: Any + Send + Sync, Rect: FromReflect + TypePath + RegisterForReflection, Option<Vec2>: FromReflect + TypePath + RegisterForReflection,

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fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<RelativeCursorPosition>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<RelativeCursorPosition>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.
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fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
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fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn try_apply( &mut self, value: &(dyn Reflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<RelativeCursorPosition>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value. Read more
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fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl Serialize for RelativeCursorPosition

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Struct for RelativeCursorPosition
where RelativeCursorPosition: Any + Send + Sync, Rect: FromReflect + TypePath + RegisterForReflection, Option<Vec2>: FromReflect + TypePath + RegisterForReflection,

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fn field(&self, name: &str) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field named name as a &dyn Reflect.
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Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl TypePath for RelativeCursorPosition

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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Returns the name of the type, or None if it is anonymous. Read more
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Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl Typed for RelativeCursorPosition
where RelativeCursorPosition: Any + Send + Sync, Rect: FromReflect + TypePath + RegisterForReflection, Option<Vec2>: FromReflect + TypePath + RegisterForReflection,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.
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impl Copy for RelativeCursorPosition

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impl StructuralPartialEq for RelativeCursorPosition

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Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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🔬This is a nightly-only experimental API. (clone_to_uninit)
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