Struct zng_app::view_process::raw_events::RawWindowChangedArgs

pub struct RawWindowChangedArgs {
    pub timestamp: DInstant,
    pub window_id: WindowId,
    pub state: Option<WindowStateAll>,
    pub position: Option<(PxPoint, DipPoint)>,
    pub monitor: Option<MonitorId>,
    pub size: Option<DipSize>,
    pub safe_padding: Option<DipSideOffsets>,
    pub cause: EventCause,
    pub frame_wait_id: Option<FrameWaitId>,
    /* private fields */
}

Arguments for the RAW_WINDOW_CHANGED_EVENT.

Fields

timestamp: DInstant

Instant the event happened.

window_id: WindowId

Window that has moved, resized or has a state change.

state: Option<WindowStateAll>

New state if any part of it has changed.

position: Option<(PxPoint, DipPoint)>

New window position if it was moved.

The values are (global_position, position_in_monitor).

monitor: Option<MonitorId>

New window monitor.

The window’s monitor change when it is moved enough so that most of the client area is in the new monitor screen.

size: Option<DipSize>

New window size if it was resized.

safe_padding: Option<DipSideOffsets>

New window safe padding.

cause: EventCause

If the app or operating system caused the change.

frame_wait_id: Option<FrameWaitId>

If the view-process is blocking the event loop for a time waiting for a frame for the new size this ID must be send with the frame to signal that it is the frame for the new size.

Event loop implementations can use this to resize without visible artifacts like the clear color flashing on the window corners, there is a timeout to this delay but it can be a noticeable stutter, a render or render_update request for the window unblocks the loop early to continue the resize operation.

Implementations

impl RawWindowChangedArgs

pub fn new( timestamp: impl Into<DInstant>, propagation_handle: EventPropagationHandle, window_id: impl Into<WindowId>, state: impl Into<Option<WindowStateAll>>, position: impl Into<Option<(PxPoint, DipPoint)>>, monitor: impl Into<Option<MonitorId>>, size: impl Into<Option<DipSize>>, safe_padding: impl Into<Option<DipSideOffsets>>, cause: impl Into<EventCause>, frame_wait_id: impl Into<Option<FrameWaitId>>, ) -> Self

New args from values that convert into the argument types.

pub fn now( window_id: impl Into<WindowId>, state: impl Into<Option<WindowStateAll>>, position: impl Into<Option<(PxPoint, DipPoint)>>, monitor: impl Into<Option<MonitorId>>, size: impl Into<Option<DipSize>>, safe_padding: impl Into<Option<DipSideOffsets>>, cause: impl Into<EventCause>, frame_wait_id: impl Into<Option<FrameWaitId>>, ) -> Self

Arguments for event that happened now (INSTANT.now).

Trait Implementations

impl AnyEventArgs for RawWindowChangedArgs

fn delivery_list(&self, list: &mut UpdateDeliveryList)

Broadcast to all widgets.

fn clone_any(&self) -> Box<dyn AnyEventArgs>

Clone the event into a type erased box.

fn as_any(&self) -> &dyn Any

Access to dyn Any methods.

fn timestamp(&self) -> DInstant

Gets the instant this event happened.

fn propagation(&self) -> &EventPropagationHandle

Propagation handle associated with this event instance.

impl Clone for RawWindowChangedArgs

fn clone(&self) -> RawWindowChangedArgs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RawWindowChangedArgs

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

Formats the value using the given formatter.

impl EventArgs for RawWindowChangedArgs

fn handle<F, R>(&self, handler: F) -> Option<R>

where F: FnOnce(&Self) -> R,

Calls handler and stops propagation if propagation is still allowed.