Struct WindowDrag 

pub struct WindowDrag {
    pub step: WindowEvent,
    pub total_dx: i32,
    pub total_dy: i32,
}

One step of a move or a resize with the whole drag so far, sent through Window::on_drag.

The steps of WindowEvent are what the pointer did since the last message, and adding them up is right only while the application takes every one of them. Once it holds a window back, at the edge of the screen or at a smallest size, the pointer runs on without it, and a sum of steps turns the window around the moment the pointer does, well before the pointer is back over it. The totals count from where the button went down, so the application places the window at where it started plus the total, held back as it likes, and the window follows the pointer again exactly when the pointer comes back to it.

Fields

step: WindowEvent

This step: a WindowEvent::Move or a WindowEvent::Resize, exactly as Window::on_event sends it without Window::on_drag.

total_dx: i32

Columns the pointer has moved to the right since the button went down; negative is to the left. 0 for a resize by the top or the bottom edge, as the step’s dx is.

total_dy: i32

Rows the pointer has moved down since the button went down; negative is up. 0 for a resize by the left or the right edge, as the step’s dy is.

Trait Implementations

impl Clone for WindowDrag

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WindowDrag

impl Debug for WindowDrag

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

Formats the value using the given formatter.

impl Eq for WindowDrag

impl PartialEq for WindowDrag

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WindowDrag