Struct TitlebarMetrics 

#[repr(C)]
pub struct TitlebarMetrics {

    pub button_side: TitlebarButtonSide,
    pub buttons: TitlebarButtons,
    pub height: OptionPixelValue,
    pub button_area_width: OptionPixelValue,
    pub padding_horizontal: OptionPixelValue,
    pub safe_area: SafeAreaInsets,
    pub title_font: OptionString,
    pub title_font_size: OptionF32,
    pub title_font_weight: OptionU16,
    pub background_active: OptionColorU,
    pub background_inactive: OptionColorU,
    pub text_active: OptionColorU,
    pub text_inactive: OptionColorU,
    pub button_hover_background: OptionColorU,
    pub close_button_hover_background: OptionColorU,
}

Metrics for titlebar layout and window chrome.

This provides information needed to correctly position custom titlebar content when using WindowDecorations::NoTitle (expanded title mode).

Fields

button_side: TitlebarButtonSide

Which side the window control buttons are on

buttons: TitlebarButtons

Which buttons are available

height: OptionPixelValue

Height of the titlebar in pixels

button_area_width: OptionPixelValue

Width reserved for window control buttons (close/min/max) This is the space to avoid when drawing custom title text

padding_horizontal: OptionPixelValue

Horizontal padding inside the titlebar

safe_area: SafeAreaInsets

Safe area insets for notched/rounded displays

title_font: OptionString

Title text font (from SystemFonts::title_font)

title_font_size: OptionF32

Title text font size

title_font_weight: OptionU16

Title text font weight (400 = normal, 600 = semibold, 700 = bold)

background_active: OptionColorU

The titlebar’s own background while the window HAS focus.

A titlebar is not painted in the window background: every desktop gives it its own pair of colours and dims them when focus leaves (KDE keeps them in Colors:Header and [Colors:Header][Inactive]). Without these a client-side decoration can match the platform’s geometry and still read as foreign, because the one surface the user compares against the neighbouring native windows is the wrong colour.

background_inactive: OptionColorU

The titlebar’s background while the window does NOT have focus.

text_active: OptionColorU

Title text colour while focused.

text_inactive: OptionColorU

Title text colour while unfocused.

button_hover_background: OptionColorU

Background a window-control button takes on hover.

close_button_hover_background: OptionColorU

Background the CLOSE button takes on hover — its own colour on every platform (Breeze and Windows both go red), which is why it is not folded into button_hover_background.

Implementations

impl TitlebarMetrics

pub fn windows() -> Self

Windows-style titlebar (buttons on right)

pub fn macos() -> Self

macOS-style titlebar (buttons on left, “traffic lights”)

pub fn linux_gnome() -> Self

Linux GNOME-style titlebar (buttons on right by default)

pub fn ios() -> Self

iOS-style safe area (for notched devices)

pub fn android() -> Self

Android-style titlebar (action bar)

Trait Implementations

impl Clone for TitlebarMetrics

fn clone(&self) -> TitlebarMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TitlebarMetrics

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

Formats the value using the given formatter.

impl Default for TitlebarMetrics

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TitlebarMetrics

impl PartialEq for TitlebarMetrics

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TitlebarMetrics