migrations/winit
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Inline example helper functionality

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It is more clear what's happening when you don't have to jump to the bottom of the file to look at the implementation.
This commit is contained in:
Mads Marquart
2024-03-01 09:45:54 +01:00
parent c6dfe620ff
commit 21fecf2cb2
1 changed files with 87 additions and 98 deletions
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185
examples/window.rs
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@@ -4,7 +4,6 @@ use std::collections::HashMap;
use std::error::Error;
#[cfg(not(any(android_platform, ios_platform)))]
use std::num::NonZeroU32;
use std::path::Path;
use cursor_icon::CursorIcon;
#[cfg(not(any(android_platform, ios_platform)))]
@@ -18,8 +17,7 @@ use winit::event::{MouseButton, MouseScrollDelta};
use winit::event_loop::{ActiveEventLoop, EventLoop};
use winit::keyboard::{Key, ModifiersState};
use winit::window::{
Cursor, CursorGrabMode, CustomCursor, CustomCursorSource, Fullscreen, Icon, ResizeDirection,
Theme,
Cursor, CursorGrabMode, CustomCursor, Fullscreen, Icon, ResizeDirection, Theme,
};
use winit::window::{Window, WindowId};
@@ -30,9 +28,6 @@ use winit::platform::startup_notify::{
self, EventLoopExtStartupNotify, WindowAttributesExtStartupNotify, WindowExtStartupNotify,
};
/// The amount of points to around the window for drag resize direction calculations.
const BORDER_SIZE: f64 = 20.;
fn main() -> Result<(), Box<dyn Error>> {
let event_loop = EventLoop::<UserEvent>::with_user_event().build()?;
let _event_loop_proxy = event_loop.create_proxy();
@@ -116,9 +111,24 @@ impl Application {
// you'll be bitten by the low-quality downscaling built into the WM.
let path = concat!(env!("CARGO_MANIFEST_DIR"), "/examples/data/icon.png");
let icon = load_icon(Path::new(path));
// Load icon
let icon = {
let image = image::open(path)
.expect("Failed to open icon path")
.into_rgba8();
let (width, height) = image.dimensions();
let rgba = image.into_raw();
Icon::from_rgba(rgba, width, height).expect("Failed to open icon")
};
println!("Loading cursor assets");
let decode_cursor = |bytes| {
let img = image::load_from_memory(bytes).unwrap().to_rgba8();
let samples = img.into_flat_samples();
let (_, w, h) = samples.extents();
let (w, h) = (w as u16, h as u16);
CustomCursor::from_rgba(samples.samples, w, h, w / 2, h / 2).unwrap()
};
let custom_cursors = vec![
event_loop.create_custom_cursor(decode_cursor(include_bytes!("data/cross.png"))),
event_loop.create_custom_cursor(decode_cursor(include_bytes!("data/cross2.png"))),
@@ -189,8 +199,6 @@ impl Application {
let theme = window.theme().unwrap_or(Theme::Dark);
println!("Theme: {theme:?}");
let named_idx = 0;
window.set_cursor(CURSORS[named_idx]);
// Allow IME out of the box.
let ime = true;
@@ -200,7 +208,7 @@ impl Application {
window,
custom_idx: self.custom_cursors.len() - 1,
cursor_grab: CursorGrabMode::None,
named_idx,
named_idx: 0,
#[cfg(not(any(android_platform, ios_platform)))]
surface,
theme,
@@ -284,6 +292,44 @@ impl Application {
window.set_minimized(true);
}
Action::NextCursor => {
// Cursor list to cycle through.
const CURSORS: &[CursorIcon] = &[
CursorIcon::Default,
CursorIcon::Crosshair,
CursorIcon::Pointer,
CursorIcon::Move,
CursorIcon::Text,
CursorIcon::Wait,
CursorIcon::Help,
CursorIcon::Progress,
CursorIcon::NotAllowed,
CursorIcon::ContextMenu,
CursorIcon::Cell,
CursorIcon::VerticalText,
CursorIcon::Alias,
CursorIcon::Copy,
CursorIcon::NoDrop,
CursorIcon::Grab,
CursorIcon::Grabbing,
CursorIcon::AllScroll,
CursorIcon::ZoomIn,
CursorIcon::ZoomOut,
CursorIcon::EResize,
CursorIcon::NResize,
CursorIcon::NeResize,
CursorIcon::NwResize,
CursorIcon::SResize,
CursorIcon::SeResize,
CursorIcon::SwResize,
CursorIcon::WResize,
CursorIcon::EwResize,
CursorIcon::NsResize,
CursorIcon::NeswResize,
CursorIcon::NwseResize,
CursorIcon::ColResize,
CursorIcon::RowResize,
];
// Pick the next cursor
state.named_idx = (state.named_idx + 1) % CURSORS.len();
println!("Setting cursor to \"{:?}\"", CURSORS[state.named_idx]);
@@ -321,6 +367,9 @@ impl Application {
}
};
// The amount of points around the window.
const BORDER_SIZE: f64 = 20.0;
let win_size = window.inner_size();
let border_size = BORDER_SIZE * window.scale_factor();
@@ -597,6 +646,24 @@ impl Application {
}
fn print_help(&self) {
fn modifiers_to_string(mods: ModifiersState) -> String {
let mut mods_line = String::new();
// Always add + since it's printed as a part of the bindings.
for (modifier, desc) in [
(ModifiersState::SUPER, "Super+"),
(ModifiersState::ALT, "Alt+"),
(ModifiersState::CONTROL, "Ctrl+"),
(ModifiersState::SHIFT, "Shift+"),
] {
if !mods.contains(modifier) {
continue;
}
mods_line.push_str(desc);
}
mods_line
}
println!("Keyboard bindings:");
for binding in KEY_BINDINGS {
println!(
@@ -609,10 +676,19 @@ impl Application {
}
println!("Mouse bindings:");
for binding in MOUSE_BINDINGS {
let button_name = match binding.trigger {
MouseButton::Left => "LMB",
MouseButton::Right => "RMB",
MouseButton::Middle => "MMB",
MouseButton::Back => "Back",
MouseButton::Forward => "Forward",
MouseButton::Other(_) => "",
};
println!(
"{}{:<10} - {:?} ({})",
modifiers_to_string(binding.mods),
mouse_button_to_string(binding.trigger),
button_name,
binding.action,
binding.action.help(),
);
@@ -725,93 +801,6 @@ impl Action {
}
}
fn decode_cursor(bytes: &[u8]) -> CustomCursorSource {
let img = image::load_from_memory(bytes).unwrap().to_rgba8();
let samples = img.into_flat_samples();
let (_, w, h) = samples.extents();
let (w, h) = (w as u16, h as u16);
CustomCursor::from_rgba(samples.samples, w, h, w / 2, h / 2).unwrap()
}
fn load_icon(path: &Path) -> Icon {
let (icon_rgba, icon_width, icon_height) = {
let image = image::open(path)
.expect("Failed to open icon path")
.into_rgba8();
let (width, height) = image.dimensions();
let rgba = image.into_raw();
(rgba, width, height)
};
Icon::from_rgba(icon_rgba, icon_width, icon_height).expect("Failed to open icon")
}
fn modifiers_to_string(mods: ModifiersState) -> String {
let mut mods_line = String::new();
// Always add + since it's printed as a part of the bindings.
for (modifier, desc) in [
(ModifiersState::SUPER, "Super+"),
(ModifiersState::ALT, "Alt+"),
(ModifiersState::CONTROL, "Ctrl+"),
(ModifiersState::SHIFT, "Shift+"),
] {
if !mods.contains(modifier) {
continue;
}
mods_line.push_str(desc);
}
mods_line
}
fn mouse_button_to_string(button: MouseButton) -> &'static str {
match button {
MouseButton::Left => "LMB",
MouseButton::Right => "RMB",
MouseButton::Middle => "MMB",
MouseButton::Back => "Back",
MouseButton::Forward => "Forward",
MouseButton::Other(_) => "",
}
}
/// Cursor list to cycle through.
const CURSORS: &[CursorIcon] = &[
CursorIcon::Default,
CursorIcon::Crosshair,
CursorIcon::Pointer,
CursorIcon::Move,
CursorIcon::Text,
CursorIcon::Wait,
CursorIcon::Help,
CursorIcon::Progress,
CursorIcon::NotAllowed,
CursorIcon::ContextMenu,
CursorIcon::Cell,
CursorIcon::VerticalText,
CursorIcon::Alias,
CursorIcon::Copy,
CursorIcon::NoDrop,
CursorIcon::Grab,
CursorIcon::Grabbing,
CursorIcon::AllScroll,
CursorIcon::ZoomIn,
CursorIcon::ZoomOut,
CursorIcon::EResize,
CursorIcon::NResize,
CursorIcon::NeResize,
CursorIcon::NwResize,
CursorIcon::SResize,
CursorIcon::SeResize,
CursorIcon::SwResize,
CursorIcon::WResize,
CursorIcon::EwResize,
CursorIcon::NsResize,
CursorIcon::NeswResize,
CursorIcon::NwseResize,
CursorIcon::ColResize,
CursorIcon::RowResize,
];
const KEY_BINDINGS: &[Binding<&'static str>] = &[
Binding::new("Q", ModifiersState::CONTROL, Action::CloseWindow),
Binding::new("H", ModifiersState::CONTROL, Action::PrintHelp),