Struct RelativeSource 

pub struct RelativeSource { /* private fields */ }

Describes the location of a binding source, relative to the binding target.

A relative source is a mutable reference object: it is created with RelativeSource::empty or RelativeSource::new, configured property by property (or with the chaining with_* forms) and shared as Rc<RelativeSource>. Handles compare by identity. A binding reads it when it is instantiated on a target.

Implementations

impl RelativeSource

pub fn empty() -> Rc<Self>

Creates a relative source in find-ancestor mode (the parameterless constructor).

pub fn new(mode: RelativeSourceMode) -> Rc<Self>

Creates a relative source with the given mode.

pub fn ancestor_level(&self) -> i32

The level of ancestor to look for when in find-ancestor mode. Use the default value of 1 to look for the first ancestor of the specified type.

pub fn set_ancestor_level(&self, value: i32)

Sets the ancestor level. Panics if it is not positive.

pub fn with_ancestor_level(self: Rc<Self>, value: i32) -> Rc<Self>

The chaining form of set_ancestor_level.

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

The type of ancestor to look for when in RelativeSourceMode::FindAncestor mode.

pub fn set_ancestor_type(&self, value: Option<&'static TypeInfo>)

pub fn with_ancestor_type( self: Rc<Self>, value: Option<&'static TypeInfo>, ) -> Rc<Self>

The chaining form of set_ancestor_type.

pub fn mode(&self) -> RelativeSourceMode

A value that describes the type of relative source lookup.

pub fn set_mode(&self, value: RelativeSourceMode)

pub fn with_mode(self: Rc<Self>, value: RelativeSourceMode) -> Rc<Self>

The chaining form of set_mode.

pub fn tree(&self) -> TreeType

The tree in which ancestors are looked up.

pub fn set_tree(&self, value: TreeType)

pub fn with_tree(self: Rc<Self>, value: TreeType) -> Rc<Self>

The chaining form of set_tree.

Trait Implementations

impl Debug for RelativeSource

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

Formats the value using the given formatter.

impl Default for RelativeSource

fn default() -> Self

A relative source in find-ancestor mode.

impl MarkupTyped for RelativeSource

const MARKUP: &'static MarkupType

The markup metadata of the type.

impl PartialEq for RelativeSource

Compares by identity (reference equality), as the reference type this mirrors.

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

Equality operator ==.

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

Inequality operator !=.