gdk/
event_scroll.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::translate::*;
4
5/// Generated from button presses for the buttons 4 to 7. Wheel mice are
6/// usually configured to generate button press events for buttons 4 and 5
7/// when the wheel is turned.
8///
9/// Some GDK backends can also generate “smooth” scroll events, which
10/// can be recognized by the [`ScrollDirection::Smooth`][crate::ScrollDirection::Smooth] scroll direction. For
11/// these, the scroll deltas can be obtained with
12/// `gdk_event_get_scroll_deltas()`.
13#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
14pub struct EventScroll(crate::Event);
15
16event_wrapper!(EventScroll, GdkEventScroll);
17event_subtype!(EventScroll, ffi::GDK_SCROLL);
18
19impl EventScroll {
20    #[doc(alias = "get_time")]
21    pub fn time(&self) -> u32 {
22        self.as_ref().time
23    }
24
25    #[doc(alias = "get_position")]
26    pub fn position(&self) -> (f64, f64) {
27        let x = self.as_ref().x;
28        let y = self.as_ref().y;
29        (x, y)
30    }
31
32    #[doc(alias = "get_state")]
33    pub fn state(&self) -> crate::ModifierType {
34        unsafe { from_glib(self.as_ref().state) }
35    }
36
37    #[doc(alias = "get_device")]
38    pub fn device(&self) -> Option<crate::Device> {
39        unsafe { from_glib_none(self.as_ref().device) }
40    }
41
42    #[doc(alias = "get_direction")]
43    pub fn direction(&self) -> crate::ScrollDirection {
44        unsafe { from_glib(self.as_ref().direction) }
45    }
46
47    #[doc(alias = "get_root")]
48    pub fn root(&self) -> (f64, f64) {
49        let x_root = self.as_ref().x_root;
50        let y_root = self.as_ref().y_root;
51        (x_root, y_root)
52    }
53
54    #[doc(alias = "get_delta")]
55    pub fn delta(&self) -> (f64, f64) {
56        let dx = self.as_ref().delta_x;
57        let dy = self.as_ref().delta_y;
58        (dx, dy)
59    }
60
61    #[doc(alias = "get_is_stop")]
62    pub fn is_stop(&self) -> bool {
63        self.as_ref().is_stop & 1 != 0
64    }
65}
gdk/event_scroll.rs

gdk/
event_scroll.rs
