gdk/
event_touch.rs

1// Copyright 2016, The Gtk-rs Project Developers.
2// See the COPYRIGHT file at the top-level directory of this distribution.
3// Licensed under the MIT license, see the LICENSE file or <http://opensource.org/licenses/MIT>
4
5use gdk_sys;
6use glib::translate::*;
7
8#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
9pub struct EventTouch(::Event);
10
11event_wrapper!(EventTouch, GdkEventTouch);
12event_subtype!(
13    EventTouch,
14    gdk_sys::GDK_TOUCH_BEGIN
15        | gdk_sys::GDK_TOUCH_UPDATE
16        | gdk_sys::GDK_TOUCH_END
17        | gdk_sys::GDK_TOUCH_CANCEL
18);
19
20impl EventTouch {
21    pub fn get_time(&self) -> u32 {
22        self.as_ref().time
23    }
24
25    pub fn get_position(&self) -> (f64, f64) {
26        let x = self.as_ref().x;
27        let y = self.as_ref().y;
28        (x, y)
29    }
30
31    pub fn get_state(&self) -> ::ModifierType {
32        from_glib(self.as_ref().state)
33    }
34
35    pub fn is_emulating_pointer(&self) -> bool {
36        from_glib(self.as_ref().emulating_pointer)
37    }
38
39    pub fn get_device(&self) -> Option<::Device> {
40        unsafe { from_glib_none(self.as_ref().device) }
41    }
42
43    pub fn get_axes(&self) -> Option<(f64, f64)> {
44        let axes = self.as_ref().axes;
45
46        if axes.is_null() {
47            None
48        } else {
49            unsafe { Some((*axes, *axes.offset(1))) }
50        }
51    }
52
53    pub fn get_root(&self) -> (f64, f64) {
54        let x_root = self.as_ref().x_root;
55        let y_root = self.as_ref().y_root;
56        (x_root, y_root)
57    }
58
59    pub fn get_event_sequence(&self) -> Option<::EventSequence> {
60        unsafe { from_glib_none(self.as_ref().sequence) }
61    }
62}