Enum zng_app::widget::info::Visibility

pub enum Visibility {
    Visible,
    Hidden,
    Collapsed,
}

Widget visibility.

The visibility state of a widget is computed from its bounds in the last layout and if it rendered anything, the visibility of a parent widget affects all descendant widgets, you can inspect the visibility using the WidgetInfo::visibility method.

You can also explicitly hide or collapse a widget using the visibility property.

Variants

Visible

The widget is visible.

This is also the default state, before the first layout and render.

Hidden

The widget is not visible, but still affects layout.

Hidden widgets reserve space in their parent but do not render.

Collapsed

The widget is not visible and does not affect layout.

Collapsed widgets always measure to zero and do not render.

Implementations

impl Visibility

pub fn is_visible(self) -> bool

Is visible.

pub fn is_hidden(self) -> bool

Is hidden.

pub fn is_collapsed(self) -> bool

Is collapsed.

Trait Implementations

impl BitOr for Visibility

fn bitor(self, rhs: Self) -> Self::Output

Collapsed | Hidden | Visible short circuit from left to right.

type Output = Visibility

The resulting type after applying the | operator.

impl BitOrAssign for Visibility

fn bitor_assign(&mut self, rhs: Self)

Performs the |= operation.

impl Clone for Visibility

fn clone(&self) -> Visibility

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Visibility

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

Formats the value using the given formatter.

impl Default for Visibility

fn default() -> Self

Visibility::Visible

impl<'de> Deserialize<'de> for Visibility

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<bool> for Visibility

fn from(visible: bool) -> Self

• true -> Visible
• false -> Collapsed

impl IntoVar<Visibility> for bool

fn into_var(self) -> Self::Var

• true -> Visible
• false -> Collapsed

type Var = LocalVar<Visibility>

Variable type that will wrap the T value.

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>

where Self: Sized,

Converts into BoxedVar<T>.

impl PartialEq for Visibility

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

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

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.

impl Serialize for Visibility

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Visibility

impl Eq for Visibility

impl IntoValue<Visibility> for bool

impl StructuralPartialEq for Visibility