gtk4/gesture_stylus.rs
1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use gdk::AxisUse;
4use glib::translate::*;
5
6use crate::{ffi, GestureStylus};
7
8impl GestureStylus {
9 /// Returns the current values for the requested @axes.
10 ///
11 /// This function must be called from the handler of one of the
12 /// [`down`][struct@crate::GestureStylus#down], [`motion`][struct@crate::GestureStylus#motion],
13 /// [`up`][struct@crate::GestureStylus#up] or [`proximity`][struct@crate::GestureStylus#proximity]
14 /// signals.
15 /// ## `axes`
16 /// array of requested axes, terminated with [`gdk::AxisUse::Ignore`][crate::gdk::AxisUse::Ignore]
17 ///
18 /// # Returns
19 ///
20 /// [`true`] if there is a current value for the axes
21 ///
22 /// ## `values`
23 /// return location for the axis values
24 #[doc(alias = "gtk_gesture_stylus_get_axes")]
25 #[doc(alias = "get_axes")]
26 pub fn axes(&self, axes: Vec<AxisUse>) -> Option<Vec<f64>> {
27 let mut values = std::ptr::null_mut();
28 unsafe {
29 let mut axes1: Vec<gdk::ffi::GdkAxisUse> = axes.iter().map(|a| a.into_glib()).collect();
30 axes1.push(gdk::ffi::GDK_AXIS_IGNORE);
31 if from_glib(ffi::gtk_gesture_stylus_get_axes(
32 self.to_glib_none().0,
33 axes1.as_mut_ptr(),
34 &mut values,
35 )) {
36 Some(FromGlibContainer::from_glib_container_num(
37 values,
38 axes.len(),
39 ))
40 } else {
41 None
42 }
43 }
44 }
45}