1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
#![allow(clippy::single_match)]
#[cfg(not(wasm_platform))]
fn main() {
use std::{collections::HashMap, sync::mpsc, thread, time::Duration};
use simple_logger::SimpleLogger;
use winit::{
dpi::{PhysicalPosition, PhysicalSize, Position, Size},
event::{ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent},
event_loop::EventLoop,
window::{CursorGrabMode, CursorIcon, Fullscreen, WindowBuilder, WindowLevel},
};
const WINDOW_COUNT: usize = 3;
const WINDOW_SIZE: PhysicalSize<u32> = PhysicalSize::new(600, 400);
SimpleLogger::new().init().unwrap();
let event_loop = EventLoop::new();
let mut window_senders = HashMap::with_capacity(WINDOW_COUNT);
for _ in 0..WINDOW_COUNT {
let window = WindowBuilder::new()
.with_inner_size(WINDOW_SIZE)
.build(&event_loop)
.unwrap();
let mut video_modes: Vec<_> = window.current_monitor().unwrap().video_modes().collect();
let mut video_mode_id = 0usize;
let (tx, rx) = mpsc::channel();
window_senders.insert(window.id(), tx);
thread::spawn(move || {
while let Ok(event) = rx.recv() {
match event {
WindowEvent::Moved { .. } => {
// We need to update our chosen video mode if the window
// was moved to an another monitor, so that the window
// appears on this monitor instead when we go fullscreen
let previous_video_mode = video_modes.get(video_mode_id).cloned();
video_modes = window.current_monitor().unwrap().video_modes().collect();
video_mode_id = video_mode_id.min(video_modes.len());
let video_mode = video_modes.get(video_mode_id);
// Different monitors may support different video modes,
// and the index we chose previously may now point to a
// completely different video mode, so notify the user
if video_mode != previous_video_mode.as_ref() {
println!(
"Window moved to another monitor, picked video mode: {}",
video_modes.get(video_mode_id).unwrap()
);
}
}
#[allow(deprecated)]
WindowEvent::KeyboardInput {
input:
KeyboardInput {
state: ElementState::Released,
virtual_keycode: Some(key),
modifiers,
..
},
..
} => {
window.set_title(&format!("{key:?}"));
let state = !modifiers.shift();
use VirtualKeyCode::*;
match key {
Key1 => window.set_window_level(WindowLevel::AlwaysOnTop),
Key2 => window.set_window_level(WindowLevel::AlwaysOnBottom),
Key3 => window.set_window_level(WindowLevel::Normal),
C => window.set_cursor_icon(match state {
true => CursorIcon::Progress,
false => CursorIcon::Default,
}),
D => window.set_decorations(!state),
// Cycle through video modes
Right | Left => {
video_mode_id = match key {
Left => video_mode_id.saturating_sub(1),
Right => (video_modes.len() - 1).min(video_mode_id + 1),
_ => unreachable!(),
};
println!("Picking video mode: {}", video_modes[video_mode_id]);
}
F => window.set_fullscreen(match (state, modifiers.alt()) {
(true, false) => Some(Fullscreen::Borderless(None)),
(true, true) => {
Some(Fullscreen::Exclusive(video_modes[video_mode_id].clone()))
}
(false, _) => None,
}),
L if state => {
if let Err(err) = window.set_cursor_grab(CursorGrabMode::Locked) {
println!("error: {err}");
}
}
G if state => {
if let Err(err) = window.set_cursor_grab(CursorGrabMode::Confined) {
println!("error: {err}");
}
}
G | L if !state => {
if let Err(err) = window.set_cursor_grab(CursorGrabMode::None) {
println!("error: {err}");
}
}
H => window.set_cursor_visible(!state),
I => {
println!("Info:");
println!("-> outer_position : {:?}", window.outer_position());
println!("-> inner_position : {:?}", window.inner_position());
println!("-> outer_size : {:?}", window.outer_size());
println!("-> inner_size : {:?}", window.inner_size());
println!("-> fullscreen : {:?}", window.fullscreen());
}
L => window.set_min_inner_size(match state {
true => Some(WINDOW_SIZE),
false => None,
}),
M => window.set_maximized(state),
P => window.set_outer_position({
let mut position = window.outer_position().unwrap();
let sign = if state { 1 } else { -1 };
position.x += 10 * sign;
position.y += 10 * sign;
position
}),
Q => window.request_redraw(),
R => window.set_resizable(state),
S => window.set_inner_size(match state {
true => PhysicalSize::new(
WINDOW_SIZE.width + 100,
WINDOW_SIZE.height + 100,
),
false => WINDOW_SIZE,
}),
W => {
if let Size::Physical(size) = WINDOW_SIZE.into() {
window
.set_cursor_position(Position::Physical(
PhysicalPosition::new(
size.width as i32 / 2,
size.height as i32 / 2,
),
))
.unwrap()
}
}
Z => {
window.set_visible(false);
thread::sleep(Duration::from_secs(1));
window.set_visible(true);
}
_ => (),
}
}
_ => (),
}
}
});
}
event_loop.run(move |event, _event_loop, control_flow| {
match !window_senders.is_empty() {
true => control_flow.set_wait(),
false => control_flow.set_exit(),
};
match event {
Event::WindowEvent { event, window_id } => match event {
WindowEvent::CloseRequested
| WindowEvent::Destroyed
| WindowEvent::KeyboardInput {
input:
KeyboardInput {
state: ElementState::Released,
virtual_keycode: Some(VirtualKeyCode::Escape),
..
},
..
} => {
window_senders.remove(&window_id);
}
_ => {
if let Some(tx) = window_senders.get(&window_id) {
if let Some(event) = event.to_static() {
tx.send(event).unwrap();
}
}
}
},
_ => {}
}
})
}
#[cfg(wasm_platform)]
fn main() {
panic!("Example not supported on Wasm");
}