Struct MultiMonitorManager 

pub struct MultiMonitorManager { /* private fields */ }

P2-39: Manages multi-monitor layouts, tracking scale factor updates and DPI changes during transitions.

Implementations

impl MultiMonitorManager

pub fn new(monitors: Vec<MonitorConfig>) -> Self

Creates a new MultiMonitorManager with a set of displays.

Arguments

• monitors - The list of active monitors. Must contain at least one monitor.

Contract

If the list of monitors is empty, a default 1080p, 60Hz, 1.0x scale monitor is added.

pub fn current_monitor(&self) -> &MonitorConfig

Returns the currently active monitor configuration.

pub fn monitors(&self) -> &[MonitorConfig]

Returns all registered monitor configurations.

pub fn update_window_position( &mut self, window_rect: (i32, i32, u32, u32), ) -> Option<usize>

Determines which monitor a window is on based on its center coordinate.

Arguments

• window_rect - The spatial bounds of the window represented as (x, y, width, height) in physical coordinates.

Contract

Selects the monitor that contains the center point of the window. If the center point is outside all monitors, defaults to the closest monitor or the current one.

pub fn scale_dimensions( &self, logical_width: f64, logical_height: f64, ) -> (u32, u32)

Dynamically scales logical dimensions to physical dimensions using the active monitor’s scale factor.

Arguments

• logical_width - The logical width to scale.
• logical_height - The logical height to scale.

Returns

The physical dimensions as (u32, u32).

pub fn requires_dpi_adaptation( &self, from_index: usize, to_index: usize, ) -> bool

Checks if moving between monitors requires a DPI scaling recalculation.

Arguments

• from_index - The source monitor index.
• to_index - The target monitor index.

Trait Implementations

impl Clone for MultiMonitorManager

fn clone(&self) -> MultiMonitorManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MultiMonitorManager

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

Formats the value using the given formatter.