mouse/
mouse.rs

1use sfml::{graphics::*, system::*, window::*, SfResult};
2
3include!("../example_common.rs");
4
5fn main() -> SfResult<()> {
6    example_ensure_right_working_dir();
7
8    let mut window = RenderWindow::new(
9        (800, 600),
10        "Mouse events",
11        Style::CLOSE,
12        &Default::default(),
13    )?;
14    window.set_mouse_cursor_visible(false);
15    window.set_vertical_sync_enabled(true);
16
17    let font = Font::from_file("sansation.ttf")?;
18    let mut circle = CircleShape::new(4., 30);
19    let mut texts: Vec<Text> = Vec::new();
20    let mut mp_text = Text::new("", &font, 14);
21    let mut cursor_visible = false;
22    let mut grabbed = false;
23    macro_rules! push_text {
24        ($x:expr, $y:expr, $fmt:expr, $($arg:tt)*) => {
25            let mut text = Text::new(&format!($fmt, $($arg)*), &font, 14);
26            text.set_position(($x as f32, $y as f32));
27            texts.push(text);
28        }
29    }
30
31    'mainloop: loop {
32        while let Some(ev) = window.poll_event() {
33            match ev {
34                Event::Closed => break 'mainloop,
35                Event::MouseWheelScrolled { wheel, delta, x, y } => {
36                    push_text!(x, y, "Scroll: {:?}, {}, {}, {}", wheel, delta, x, y);
37                }
38                Event::MouseButtonPressed { button, x, y } => {
39                    push_text!(x, y, "Press: {:?}, {}, {}", button, x, y);
40                }
41                Event::MouseButtonReleased { button, x, y } => {
42                    push_text!(x, y, "Release: {:?}, {}, {}", button, x, y);
43                }
44                Event::KeyPressed { code, .. } => {
45                    if code == Key::W {
46                        window.set_mouse_position(Vector2i::new(400, 300));
47                    } else if code == Key::D {
48                        let dm = VideoMode::desktop_mode();
49                        let center = Vector2i::new(dm.width as i32 / 2, dm.height as i32 / 2);
50                        mouse::set_desktop_position(center);
51                    } else if code == Key::V {
52                        cursor_visible = !cursor_visible;
53                        window.set_mouse_cursor_visible(cursor_visible);
54                    } else if code == Key::G {
55                        grabbed = !grabbed;
56                        window.set_mouse_cursor_grabbed(grabbed);
57                    }
58                }
59                _ => {}
60            }
61        }
62
63        let mp = window.mouse_position();
64        let dmp = mouse::desktop_position();
65        let cur_vis_msg = if cursor_visible {
66            "visible"
67        } else {
68            "invisible"
69        };
70        let grab_msg = if grabbed { "grabbed" } else { "not grabbed" };
71        mp_text.set_string(&format!(
72            "x: {}, y: {} (Window)\n\
73             x: {}, y: {} (Desktop)\n\
74             [{cur_vis_msg}] [{grab_msg}] ('V'/'G') to toggle\n\
75             'W' to center mouse on window\n\
76             'D' to center mouse on desktop",
77            mp.x, mp.y, dmp.x, dmp.y
78        ));
79
80        circle.set_position((mp.x as f32, mp.y as f32));
81
82        window.clear(Color::BLACK);
83        // Push texts out of each other's way
84        for i in (0..texts.len()).rev() {
85            for j in (0..i).rev() {
86                if let Some(intersect) = texts[i]
87                    .global_bounds()
88                    .intersection(&texts[j].global_bounds())
89                {
90                    texts[j].move_((0., -intersect.height));
91                }
92            }
93        }
94        texts.retain(|txt| txt.fill_color().a > 0);
95        for txt in &mut texts {
96            let mut color = txt.fill_color();
97            color.a -= 1;
98            txt.set_fill_color(color);
99            window.draw(txt);
100        }
101        if !cursor_visible {
102            window.draw(&circle);
103        }
104        window.draw(&mp_text);
105        window.display();
106    }
107    Ok(())
108}
mouse/mouse.rs

mouse/
mouse.rs
