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use gdk_sys;
use glib::object::IsA;
use glib::translate::*;
use AxisUse;
use Device;
use TimeCoord;
use Window;
use std::mem;
use std::ptr;
impl Device {
pub fn get_axis(&self, axes: &mut [f64], use_: AxisUse, value: &mut f64) -> bool {
unsafe {
from_glib(gdk_sys::gdk_device_get_axis(
self.to_glib_none().0,
axes.as_mut_ptr(),
use_.to_glib(),
value,
))
}
}
pub fn get_history<P: IsA<Window>>(&self, window: &P, start: u32, stop: u32) -> Vec<TimeCoord> {
unsafe {
let mut events = ptr::null_mut();
let mut n_events = mem::MaybeUninit::uninit();
let ret: bool = from_glib(gdk_sys::gdk_device_get_history(
self.to_glib_none().0,
window.as_ref().to_glib_none().0,
start,
stop,
&mut events,
n_events.as_mut_ptr(),
));
if !ret {
return Vec::new();
}
let n_events = n_events.assume_init() as usize;
let mut r_events = Vec::with_capacity(n_events);
for i in 0..n_events {
r_events.push((*(events.offset(i as isize) as *mut TimeCoord)).clone());
}
gdk_sys::gdk_device_free_history(events, n_events as _);
r_events
}
}
}