Struct ExpanderTheme 

pub struct ExpanderTheme {
    pub header_height: Option<f32>,
    pub arrow_icon_size: Option<f32>,
    pub hover_background: Option<Rgba>,
    pub arrow_color: Option<Rgba>,
    pub arrow_side: Option<ArrowSide>,
    pub arrow_gap: Option<f32>,
    pub content_indent: Option<f32>,
    pub frame_enabled: Option<bool>,
    pub font: Option<FontSpec>,
    pub border: Option<WidgetBorderSpec>,
}

Expander / disclosure row geometry.

Fields

header_height: Option<f32>

Collapsed header row height in logical pixels.

arrow_icon_size: Option<f32>

Disclosure arrow size in logical pixels.

hover_background: Option<Rgba>

Expander header background on hover.

arrow_color: Option<Rgba>

Disclosure arrow/chevron color.

arrow_side: Option<ArrowSide>

Which end of the header row the disclosure arrow sits at: before the title, or at the row’s end. None where the theme states none (docs/platform-facts.md §2.27).

arrow_gap: Option<f32>

Space between the arrow’s icon box (arrow_icon_size square) and the title after it, or, for a trailing arrow, the header content before it, in logical pixels. None where the platform states none: AppKit documents no disclosure geometry (docs/platform-facts.md §2.27).

content_indent: Option<f32>

Horizontal distance from the expander’s leading inner edge (inside its frame, where it has one) to the content it reveals, in logical pixels. None where the platform states none: AppKit documents no disclosure geometry (docs/platform-facts.md §2.27).

frame_enabled: Option<bool>

Whether the expander draws a frame (its border) around its header and the content it reveals: KDE’s has none, libadwaita’s and WinUI’s are framed. None where the theme states none (docs/platform-facts.md §2.27).

font: Option<FontSpec>

Expander font specification.

border: Option<WidgetBorderSpec>

Expander border specification.

Implementations

impl ExpanderTheme

pub const FIELD_NAMES: &[&str]

All serialized field names for this widget theme, for TOML linting.

impl ExpanderTheme

pub fn merge(&mut self, overlay: &Self)

Merge an overlay into this value. Some fields in the overlay replace the corresponding fields in self; None fields are left unchanged. Nested structs are merged recursively.

pub fn is_empty(&self) -> bool

Returns true if all fields are at their default (None/empty) state.

Trait Implementations

impl Clone for ExpanderTheme

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExpanderTheme

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

Formats the value using the given formatter.

impl Default for ExpanderTheme

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ExpanderTheme

where ExpanderTheme: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ExpanderTheme

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ExpanderTheme

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ExpanderTheme