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Merge branch 'master' into feat/text-macro

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Héctor Ramón Jiménez 2024-05-23 13:29:45 +02:00
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232 changed files with 12638 additions and 8527 deletions
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68
examples/bezier_tool/src/main.rs
View file

@ -1,9 +1,11 @@
//! This example showcases an interactive `Canvas` for drawing Bézier curves.
use iced::widget::{button, column, text};
use iced::{Alignment, Element, Length};
use iced::alignment;
use iced::widget::{button, container, horizontal_space, hover};
use iced::{Element, Length, Theme};
pub fn main() -> iced::Result {
iced::program("Bezier Tool - Iced", Example::update, Example::view)
.theme(|_| Theme::CatppuccinMocha)
.antialiasing(true)
.run()
}
@ -35,16 +37,22 @@ impl Example {
}
fn view(&self) -> Element<Message> {
column![
text("Bezier tool example").width(Length::Shrink).size(50),
container(hover(
self.bezier.view(&self.curves).map(Message::AddCurve),
button("Clear")
.style(button::danger)
.on_press(Message::Clear),
]
if self.curves.is_empty() {
container(horizontal_space())
} else {
container(
button("Clear")
.style(button::danger)
.on_press(Message::Clear),
)
.padding(10)
.width(Length::Fill)
.align_x(alignment::Horizontal::Right)
},
))
.padding(20)
.spacing(20)
.align_items(Alignment::Center)
.into()
}
}
@ -139,27 +147,24 @@ mod bezier {
&self,
state: &Self::State,
renderer: &Renderer,
_theme: &Theme,
theme: &Theme,
bounds: Rectangle,
cursor: mouse::Cursor,
) -> Vec<Geometry> {
let content = self.state.cache.draw(
renderer,
bounds.size(),
|frame: &mut Frame| {
Curve::draw_all(self.curves, frame);
let content =
self.state.cache.draw(renderer, bounds.size(), |frame| {
Curve::draw_all(self.curves, frame, theme);
frame.stroke(
&Path::rectangle(Point::ORIGIN, frame.size()),
Stroke::default().with_width(2.0),
Stroke::default()
.with_width(2.0)
.with_color(theme.palette().text),
);
},
);
});
if let Some(pending) = state {
let pending_curve = pending.draw(renderer, bounds, cursor);
vec![content, pending_curve]
vec![content, pending.draw(renderer, theme, bounds, cursor)]
} else {
vec![content]
}
@ -187,7 +192,7 @@ mod bezier {
}
impl Curve {
fn draw_all(curves: &[Curve], frame: &mut Frame) {
fn draw_all(curves: &[Curve], frame: &mut Frame, theme: &Theme) {
let curves = Path::new(|p| {
for curve in curves {
p.move_to(curve.from);
@ -195,7 +200,12 @@ mod bezier {
}
});
frame.stroke(&curves, Stroke::default().with_width(2.0));
frame.stroke(
&curves,
Stroke::default()
.with_width(2.0)
.with_color(theme.palette().text),
);
}
}
@ -209,6 +219,7 @@ mod bezier {
fn draw(
&self,
renderer: &Renderer,
theme: &Theme,
bounds: Rectangle,
cursor: mouse::Cursor,
) -> Geometry {
@ -218,7 +229,12 @@ mod bezier {
match *self {
Pending::One { from } => {
let line = Path::line(from, cursor_position);
frame.stroke(&line, Stroke::default().with_width(2.0));
frame.stroke(
&line,
Stroke::default()
.with_width(2.0)
.with_color(theme.palette().text),
);
}
Pending::Two { from, to } => {
let curve = Curve {
@ -227,7 +243,7 @@ mod bezier {
control: cursor_position,
};
Curve::draw_all(&[curve], &mut frame);
Curve::draw_all(&[curve], &mut frame, theme);
}
};
}

11
examples/checkbox/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::widget::{checkbox, column, container, row, text};
use iced::{Element, Font, Length};
use iced::widget::{center, checkbox, column, row, text};
use iced::{Element, Font};
const ICON_FONT: Font = Font::with_name("icons");
@ -68,11 +68,6 @@ impl Example {
let content =
column![default_checkbox, checkboxes, custom_checkbox].spacing(20);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
}

4
examples/clock/Cargo.toml
View file

@ -8,5 +8,5 @@ publish = false
[dependencies]
iced.workspace = true
iced.features = ["canvas", "tokio", "debug"]
time = { version = "0.3", features = ["local-offset"] }
chrono = "0.4"
tracing-subscriber = "0.3"

24
examples/clock/src/main.rs
View file

@ -1,5 +1,6 @@
use iced::alignment;
use iced::mouse;
use iced::time;
use iced::widget::canvas::{stroke, Cache, Geometry, LineCap, Path, Stroke};
use iced::widget::{canvas, container};
use iced::{
@ -8,6 +9,8 @@ use iced::{
};
pub fn main() -> iced::Result {
tracing_subscriber::fmt::init();
iced::program("Clock - Iced", Clock::update, Clock::view)
.subscription(Clock::subscription)
.theme(Clock::theme)
@ -16,13 +19,13 @@ pub fn main() -> iced::Result {
}
struct Clock {
now: time::OffsetDateTime,
now: chrono::DateTime<chrono::Local>,
clock: Cache,
}
#[derive(Debug, Clone, Copy)]
enum Message {
Tick(time::OffsetDateTime),
Tick(chrono::DateTime<chrono::Local>),
}
impl Clock {
@ -52,16 +55,12 @@ impl Clock {
}
fn subscription(&self) -> Subscription<Message> {
iced::time::every(std::time::Duration::from_millis(500)).map(|_| {
Message::Tick(
time::OffsetDateTime::now_local()
.unwrap_or_else(|_| time::OffsetDateTime::now_utc()),
)
})
time::every(time::Duration::from_millis(500))
.map(|_| Message::Tick(chrono::offset::Local::now()))
}
fn theme(&self) -> Theme {
Theme::ALL[(self.now.unix_timestamp() as usize / 10) % Theme::ALL.len()]
Theme::ALL[(self.now.timestamp() as usize / 10) % Theme::ALL.len()]
.clone()
}
}
@ -69,8 +68,7 @@ impl Clock {
impl Default for Clock {
fn default() -> Self {
Self {
now: time::OffsetDateTime::now_local()
.unwrap_or_else(|_| time::OffsetDateTime::now_utc()),
now: chrono::offset::Local::now(),
clock: Cache::default(),
}
}
@ -87,6 +85,8 @@ impl<Message> canvas::Program<Message> for Clock {
bounds: Rectangle,
_cursor: mouse::Cursor,
) -> Vec<Geometry> {
use chrono::Timelike;
let clock = self.clock.draw(renderer, bounds.size(), |frame| {
let palette = theme.extended_palette();
@ -167,7 +167,7 @@ impl<Message> canvas::Program<Message> for Clock {
}
}
fn hand_rotation(n: u8, total: u8) -> Degrees {
fn hand_rotation(n: u32, total: u32) -> Degrees {
let turns = n as f32 / total as f32;
Degrees(360.0 * turns)

4
examples/color_palette/src/main.rs
View file

@ -6,9 +6,7 @@ use iced::{
Color, Element, Font, Length, Pixels, Point, Rectangle, Renderer, Size,
Vector,
};
use palette::{
self, convert::FromColor, rgb::Rgb, Darken, Hsl, Lighten, ShiftHue,
};
use palette::{convert::FromColor, rgb::Rgb, Darken, Hsl, Lighten, ShiftHue};
use std::marker::PhantomData;
use std::ops::RangeInclusive;

9
examples/combo_box/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::widget::{
column, combo_box, container, scrollable, text, vertical_space,
center, column, combo_box, scrollable, text, vertical_space,
};
use iced::{Alignment, Element, Length};
@ -68,12 +68,7 @@ impl Example {
.align_items(Alignment::Center)
.spacing(10);
container(scrollable(content))
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(scrollable(content)).into()
}
}

18
examples/component/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::widget::container;
use iced::{Element, Length};
use iced::widget::center;
use iced::Element;
use numeric_input::numeric_input;
@ -27,10 +27,8 @@ impl Component {
}
fn view(&self) -> Element<Message> {
container(numeric_input(self.value, Message::NumericInputChanged))
center(numeric_input(self.value, Message::NumericInputChanged))
.padding(20)
.height(Length::Fill)
.center_y()
.into()
}
}
@ -73,10 +71,7 @@ mod numeric_input {
impl<Message, Theme> Component<Message, Theme> for NumericInput<Message>
where
Theme: text::DefaultStyle
+ button::DefaultStyle
+ text_input::DefaultStyle
+ 'static,
Theme: text::Catalog + button::Catalog + text_input::Catalog + 'static,
{
type State = ();
type Event = Event;
@ -151,10 +146,7 @@ mod numeric_input {
impl<'a, Message, Theme> From<NumericInput<Message>>
for Element<'a, Message, Theme>
where
Theme: text::DefaultStyle
+ button::DefaultStyle
+ text_input::DefaultStyle
+ 'static,
Theme: text::Catalog + button::Catalog + text_input::Catalog + 'static,
Message: 'a,
{
fn from(numeric_input: NumericInput<Message>) -> Self {

11
examples/custom_quad/src/main.rs
View file

@ -81,8 +81,8 @@ mod quad {
}
}
use iced::widget::{column, container, slider, text};
use iced::{Alignment, Color, Element, Length, Shadow, Vector};
use iced::widget::{center, column, slider, text};
use iced::{Alignment, Color, Element, Shadow, Vector};
pub fn main() -> iced::Result {
iced::run("Custom Quad - Iced", Example::update, Example::view)
@ -187,12 +187,7 @@ impl Example {
.max_width(500)
.align_items(Alignment::Center);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
}

9
examples/custom_shader/src/main.rs
View file

@ -4,7 +4,7 @@ use scene::Scene;
use iced::time::Instant;
use iced::widget::shader::wgpu;
use iced::widget::{checkbox, column, container, row, shader, slider, text};
use iced::widget::{center, checkbox, column, row, shader, slider, text};
use iced::window;
use iced::{Alignment, Color, Element, Length, Subscription};
@ -123,12 +123,7 @@ impl IcedCubes {
let shader =
shader(&self.scene).width(Length::Fill).height(Length::Fill);
container(column![shader, controls].align_items(Alignment::Center))
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(column![shader, controls].align_items(Alignment::Center)).into()
}
fn subscription(&self) -> Subscription<Message> {

33
examples/custom_shader/src/scene.rs
View file

@ -9,8 +9,8 @@ use pipeline::cube::{self, Cube};
use iced::mouse;
use iced::time::Duration;
use iced::widget::shader;
use iced::{Color, Rectangle, Size};
use iced::widget::shader::{self, Viewport};
use iced::{Color, Rectangle};
use glam::Vec3;
use rand::Rng;
@ -130,25 +130,29 @@ impl Primitive {
impl shader::Primitive for Primitive {
fn prepare(
&self,
format: wgpu::TextureFormat,
device: &wgpu::Device,
queue: &wgpu::Queue,
_bounds: Rectangle,
target_size: Size<u32>,
_scale_factor: f32,
format: wgpu::TextureFormat,
storage: &mut shader::Storage,
_bounds: &Rectangle,
viewport: &Viewport,
) {
if !storage.has::<Pipeline>() {
storage.store(Pipeline::new(device, queue, format, target_size));
storage.store(Pipeline::new(
device,
queue,
format,
viewport.physical_size(),
));
}
let pipeline = storage.get_mut::<Pipeline>().unwrap();
//upload data to GPU
// Upload data to GPU
pipeline.update(
device,
queue,
target_size,
viewport.physical_size(),
&self.uniforms,
self.cubes.len(),
&self.cubes,
@ -157,20 +161,19 @@ impl shader::Primitive for Primitive {
fn render(
&self,
encoder: &mut wgpu::CommandEncoder,
storage: &shader::Storage,
target: &wgpu::TextureView,
_target_size: Size<u32>,
viewport: Rectangle<u32>,
encoder: &mut wgpu::CommandEncoder,
clip_bounds: &Rectangle<u32>,
) {
//at this point our pipeline should always be initialized
// At this point our pipeline should always be initialized
let pipeline = storage.get::<Pipeline>().unwrap();
//render primitive
// Render primitive
pipeline.render(
target,
encoder,
viewport,
*clip_bounds,
self.cubes.len() as u32,
self.show_depth_buffer,
);

11
examples/custom_widget/src/main.rs
View file

@ -82,8 +82,8 @@ mod circle {
}
use circle::circle;
use iced::widget::{column, container, slider, text};
use iced::{Alignment, Element, Length};
use iced::widget::{center, column, slider, text};
use iced::{Alignment, Element};
pub fn main() -> iced::Result {
iced::run("Custom Widget - Iced", Example::update, Example::view)
@ -122,12 +122,7 @@ impl Example {
.max_width(500)
.align_items(Alignment::Center);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
}

6
examples/download_progress/src/download.rs
View file

@ -12,12 +12,6 @@ pub fn file<I: 'static + Hash + Copy + Send + Sync, T: ToString>(
})
}
#[derive(Debug, Hash, Clone)]
pub struct Download<I> {
id: I,
url: String,
}
async fn download<I: Copy>(id: I, state: State) -> ((I, Progress), State) {
match state {
State::Ready(url) => {

12
examples/download_progress/src/main.rs
View file

@ -1,7 +1,7 @@
mod download;
use iced::widget::{button, column, container, progress_bar, text, Column};
use iced::{Alignment, Element, Length, Subscription};
use iced::widget::{button, center, column, progress_bar, text, Column};
use iced::{Alignment, Element, Subscription};
pub fn main() -> iced::Result {
iced::program("Download Progress - Iced", Example::update, Example::view)
@ -67,13 +67,7 @@ impl Example {
.spacing(20)
.align_items(Alignment::End);
container(downloads)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.padding(20)
.into()
center(downloads).padding(20).into()
}
}

2
examples/editor/src/main.rs
View file

@ -277,7 +277,7 @@ fn action<'a, Message: Clone + 'a>(
label: &'a str,
on_press: Option<Message>,
) -> Element<'a, Message> {
let action = button(container(content).width(30).center_x());
let action = button(container(content).center_x(30));
if let Some(on_press) = on_press {
tooltip(

9
examples/events/src/main.rs
View file

@ -1,6 +1,6 @@
use iced::alignment;
use iced::event::{self, Event};
use iced::widget::{button, checkbox, container, text, Column};
use iced::widget::{button, center, checkbox, text, Column};
use iced::window;
use iced::{Alignment, Command, Element, Length, Subscription};
@ -84,11 +84,6 @@ impl Events {
.push(toggle)
.push(exit);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
}

12
examples/exit/src/main.rs
View file

@ -1,6 +1,6 @@
use iced::widget::{button, column, container};
use iced::widget::{button, center, column};
use iced::window;
use iced::{Alignment, Command, Element, Length};
use iced::{Alignment, Command, Element};
pub fn main() -> iced::Result {
iced::program("Exit - Iced", Exit::update, Exit::view).run()
@ -46,12 +46,6 @@ impl Exit {
.spacing(10)
.align_items(Alignment::Center);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.padding(20)
.center_x()
.center_y()
.into()
center(content).padding(20).into()
}
}

10
examples/ferris/Cargo.toml Normal file
View file

@ -0,0 +1,10 @@
[package]
name = "ferris"
version = "0.1.0"
authors = ["Héctor Ramón Jiménez <hector0193@gmail.com>"]
edition = "2021"
publish = false
[dependencies]
iced.workspace = true
iced.features = ["image", "tokio", "debug"]

211
examples/ferris/src/main.rs Normal file
View file

@ -0,0 +1,211 @@
use iced::time::Instant;
use iced::widget::{
center, checkbox, column, container, image, pick_list, row, slider, text,
};
use iced::window;
use iced::{
Alignment, Color, ContentFit, Degrees, Element, Length, Radians, Rotation,
Subscription, Theme,
};
pub fn main() -> iced::Result {
iced::program("Ferris - Iced", Image::update, Image::view)
.subscription(Image::subscription)
.theme(|_| Theme::TokyoNight)
.run()
}
struct Image {
width: f32,
opacity: f32,
rotation: Rotation,
content_fit: ContentFit,
spin: bool,
last_tick: Instant,
}
#[derive(Debug, Clone, Copy)]
enum Message {
WidthChanged(f32),
OpacityChanged(f32),
RotationStrategyChanged(RotationStrategy),
RotationChanged(Degrees),
ContentFitChanged(ContentFit),
SpinToggled(bool),
RedrawRequested(Instant),
}
impl Image {
fn update(&mut self, message: Message) {
match message {
Message::WidthChanged(width) => {
self.width = width;
}
Message::OpacityChanged(opacity) => {
self.opacity = opacity;
}
Message::RotationStrategyChanged(strategy) => {
self.rotation = match strategy {
RotationStrategy::Floating => {
Rotation::Floating(self.rotation.radians())
}
RotationStrategy::Solid => {
Rotation::Solid(self.rotation.radians())
}
};
}
Message::RotationChanged(rotation) => {
self.rotation = match self.rotation {
Rotation::Floating(_) => {
Rotation::Floating(rotation.into())
}
Rotation::Solid(_) => Rotation::Solid(rotation.into()),
};
}
Message::ContentFitChanged(content_fit) => {
self.content_fit = content_fit;
}
Message::SpinToggled(spin) => {
self.spin = spin;
self.last_tick = Instant::now();
}
Message::RedrawRequested(now) => {
const ROTATION_SPEED: Degrees = Degrees(360.0);
let delta = (now - self.last_tick).as_millis() as f32 / 1_000.0;
*self.rotation.radians_mut() = (self.rotation.radians()
+ ROTATION_SPEED * delta)
% (2.0 * Radians::PI);
self.last_tick = now;
}
}
}
fn subscription(&self) -> Subscription<Message> {
if self.spin {
window::frames().map(Message::RedrawRequested)
} else {
Subscription::none()
}
}
fn view(&self) -> Element<Message> {
let i_am_ferris = column![
"Hello!",
Element::from(
image(format!(
"{}/../tour/images/ferris.png",
env!("CARGO_MANIFEST_DIR")
))
.width(self.width)
.content_fit(self.content_fit)
.rotation(self.rotation)
.opacity(self.opacity)
)
.explain(Color::WHITE),
"I am Ferris!"
]
.spacing(20)
.align_items(Alignment::Center);
let fit = row![
pick_list(
[
ContentFit::Contain,
ContentFit::Cover,
ContentFit::Fill,
ContentFit::None,
ContentFit::ScaleDown
],
Some(self.content_fit),
Message::ContentFitChanged
)
.width(Length::Fill),
pick_list(
[RotationStrategy::Floating, RotationStrategy::Solid],
Some(match self.rotation {
Rotation::Floating(_) => RotationStrategy::Floating,
Rotation::Solid(_) => RotationStrategy::Solid,
}),
Message::RotationStrategyChanged,
)
.width(Length::Fill),
]
.spacing(10)
.align_items(Alignment::End);
let properties = row![
with_value(
slider(100.0..=500.0, self.width, Message::WidthChanged),
format!("Width: {}px", self.width)
),
with_value(
slider(0.0..=1.0, self.opacity, Message::OpacityChanged)
.step(0.01),
format!("Opacity: {:.2}", self.opacity)
),
with_value(
row![
slider(
Degrees::RANGE,
self.rotation.degrees(),
Message::RotationChanged
),
checkbox("Spin!", self.spin)
.text_size(12)
.on_toggle(Message::SpinToggled)
.size(12)
]
.spacing(10)
.align_items(Alignment::Center),
format!("Rotation: {:.0}°", f32::from(self.rotation.degrees()))
)
]
.spacing(10)
.align_items(Alignment::End);
container(column![fit, center(i_am_ferris), properties].spacing(10))
.padding(10)
.into()
}
}
impl Default for Image {
fn default() -> Self {
Self {
width: 300.0,
opacity: 1.0,
rotation: Rotation::default(),
content_fit: ContentFit::default(),
spin: false,
last_tick: Instant::now(),
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum RotationStrategy {
Floating,
Solid,
}
impl std::fmt::Display for RotationStrategy {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str(match self {
Self::Floating => "Floating",
Self::Solid => "Solid",
})
}
}
fn with_value<'a>(
control: impl Into<Element<'a, Message>>,
value: String,
) -> Element<'a, Message> {
column![control.into(), text(value).size(12).line_height(1.0)]
.spacing(2)
.align_items(Alignment::Center)
.into()
}

6
examples/game_of_life/src/main.rs
View file

@ -602,9 +602,7 @@ mod grid {
frame.into_geometry()
};
if self.scaling < 0.2 || !self.show_lines {
vec![life, overlay]
} else {
if self.scaling >= 0.2 && self.show_lines {
let grid =
self.grid_cache.draw(renderer, bounds.size(), |frame| {
frame.translate(center);
@ -641,6 +639,8 @@ mod grid {
});
vec![life, grid, overlay]
} else {
vec![life, overlay]
}
}

21
examples/geometry/src/main.rs
View file

@ -6,7 +6,10 @@ mod rainbow {
use iced::advanced::renderer;
use iced::advanced::widget::{self, Widget};
use iced::mouse;
use iced::{Element, Length, Rectangle, Renderer, Size, Theme, Vector};
use iced::{
Element, Length, Rectangle, Renderer, Size, Theme, Transformation,
Vector,
};
#[derive(Debug, Clone, Copy, Default)]
pub struct Rainbow;
@ -44,7 +47,9 @@ mod rainbow {
cursor: mouse::Cursor,
_viewport: &Rectangle,
) {
use iced::advanced::graphics::mesh::{self, Mesh, SolidVertex2D};
use iced::advanced::graphics::mesh::{
self, Mesh, Renderer as _, SolidVertex2D,
};
use iced::advanced::Renderer as _;
let bounds = layout.bounds();
@ -77,7 +82,6 @@ mod rainbow {
let posn_l = [0.0, bounds.height / 2.0];
let mesh = Mesh::Solid {
size: bounds.size(),
buffers: mesh::Indexed {
vertices: vec![
SolidVertex2D {
@ -128,6 +132,8 @@ mod rainbow {
0, 8, 1, // L
],
},
transformation: Transformation::IDENTITY,
clip_bounds: Rectangle::INFINITE,
};
renderer.with_translation(
@ -170,12 +176,7 @@ fn view(_state: &()) -> Element<'_, ()> {
.spacing(20)
.max_width(500);
let scrollable =
scrollable(container(content).width(Length::Fill).center_x());
let scrollable = scrollable(container(content).center_x(Length::Fill));
container(scrollable)
.width(Length::Fill)
.height(Length::Fill)
.center_y()
.into()
container(scrollable).center_y(Length::Fill).into()
}

2
examples/gradient/src/main.rs
View file

@ -60,7 +60,7 @@ impl Gradient {
} = *self;
let gradient_box = container(horizontal_space())
.style(move |_theme, _status| {
.style(move |_theme| {
let gradient = gradient::Linear::new(angle)
.add_stop(0.0, start)
.add_stop(1.0, end);

2
examples/integration/Cargo.toml
View file

@ -8,7 +8,9 @@ publish = false
[dependencies]
iced_winit.workspace = true
iced_wgpu.workspace = true
iced_widget.workspace = true
iced_widget.features = ["wgpu"]
[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
tracing-subscriber = "0.3"

19
examples/integration/README.md
View file

@ -10,25 +10,8 @@ The __[`main`]__ file contains all the code of the example.
You can run it with `cargo run`:
```
cargo run --package integration_wgpu
cargo run --package integration
```
### How to run this example with WebGL backend
NOTE: Currently, WebGL backend is still experimental, so expect bugs.
```sh
# 0. Install prerequisites
cargo install wasm-bindgen-cli https
# 1. cd to the current folder
# 2. Compile wasm module
cargo build -p integration_wgpu --target wasm32-unknown-unknown
# 3. Invoke wasm-bindgen
wasm-bindgen ../../target/wasm32-unknown-unknown/debug/integration_wgpu.wasm --out-dir . --target web --no-typescript
# 4. run http server
http
# 5. Open 127.0.0.1:8000 in browser
```
[`main`]: src/main.rs
[`wgpu`]: https://github.com/gfx-rs/wgpu

21
examples/integration/index.html
View file

@ -1,21 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8"/>
<title>Iced - wgpu + WebGL integration</title>
</head>
<body>
<h1>integration_wgpu</h1>
<canvas id="iced_canvas"></canvas>
<script type="module">
import init from "./integration.js";
init('./integration_bg.wasm');
</script>
<style>
body {
width: 100%;
text-align: center;
}
</style>
</body>
</html>

549
examples/integration/src/main.rs
View file

@ -5,7 +5,7 @@ use controls::Controls;
use scene::Scene;
use iced_wgpu::graphics::Viewport;
use iced_wgpu::{wgpu, Backend, Renderer, Settings};
use iced_wgpu::{wgpu, Engine, Renderer};
use iced_winit::conversion;
use iced_winit::core::mouse;
use iced_winit::core::renderer;
@ -18,309 +18,342 @@ use iced_winit::winit;
use iced_winit::Clipboard;
use winit::{
event::{Event, WindowEvent},
event::WindowEvent,
event_loop::{ControlFlow, EventLoop},
keyboard::ModifiersState,
};
use std::sync::Arc;
#[cfg(target_arch = "wasm32")]
use wasm_bindgen::JsCast;
#[cfg(target_arch = "wasm32")]
use web_sys::HtmlCanvasElement;
#[cfg(target_arch = "wasm32")]
use winit::platform::web::WindowBuilderExtWebSys;
pub fn main() -> Result<(), Box<dyn std::error::Error>> {
#[cfg(target_arch = "wasm32")]
let canvas_element = {
console_log::init().expect("Initialize logger");
std::panic::set_hook(Box::new(console_error_panic_hook::hook));
web_sys::window()
.and_then(|win| win.document())
.and_then(|doc| doc.get_element_by_id("iced_canvas"))
.and_then(|element| element.dyn_into::<HtmlCanvasElement>().ok())
.expect("Get canvas element")
};
#[cfg(not(target_arch = "wasm32"))]
pub fn main() -> Result<(), winit::error::EventLoopError> {
tracing_subscriber::fmt::init();
// Initialize winit
let event_loop = EventLoop::new()?;
#[cfg(target_arch = "wasm32")]
let window = winit::window::WindowBuilder::new()
.with_canvas(Some(canvas_element))
.build(&event_loop)?;
#[allow(clippy::large_enum_variant)]
enum Runner {
Loading,
Ready {
window: Arc<winit::window::Window>,
device: wgpu::Device,
queue: wgpu::Queue,
surface: wgpu::Surface<'static>,
format: wgpu::TextureFormat,
engine: Engine,
renderer: Renderer,
scene: Scene,
state: program::State<Controls>,
cursor_position: Option<winit::dpi::PhysicalPosition<f64>>,
clipboard: Clipboard,
viewport: Viewport,
modifiers: ModifiersState,
resized: bool,
debug: Debug,
},
}
#[cfg(not(target_arch = "wasm32"))]
let window = winit::window::Window::new(&event_loop)?;
impl winit::application::ApplicationHandler for Runner {
fn resumed(&mut self, event_loop: &winit::event_loop::ActiveEventLoop) {
if let Self::Loading = self {
let window = Arc::new(
event_loop
.create_window(
winit::window::WindowAttributes::default(),
)
.expect("Create window"),
);
let window = Arc::new(window);
let physical_size = window.inner_size();
let viewport = Viewport::with_physical_size(
Size::new(physical_size.width, physical_size.height),
window.scale_factor(),
);
let clipboard = Clipboard::connect(&window);
let physical_size = window.inner_size();
let mut viewport = Viewport::with_physical_size(
Size::new(physical_size.width, physical_size.height),
window.scale_factor(),
);
let mut cursor_position = None;
let mut modifiers = ModifiersState::default();
let mut clipboard = Clipboard::connect(&window);
let backend =
wgpu::util::backend_bits_from_env().unwrap_or_default();
// Initialize wgpu
#[cfg(target_arch = "wasm32")]
let default_backend = wgpu::Backends::GL;
#[cfg(not(target_arch = "wasm32"))]
let default_backend = wgpu::Backends::PRIMARY;
let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
backends: backend,
..Default::default()
});
let surface = instance
.create_surface(window.clone())
.expect("Create window surface");
let backend =
wgpu::util::backend_bits_from_env().unwrap_or(default_backend);
let (format, adapter, device, queue) =
futures::futures::executor::block_on(async {
let adapter =
wgpu::util::initialize_adapter_from_env_or_default(
&instance,
Some(&surface),
)
.await
.expect("Create adapter");
let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
backends: backend,
..Default::default()
});
let surface = instance.create_surface(window.clone())?;
let adapter_features = adapter.features();
let (format, adapter, device, queue) =
futures::futures::executor::block_on(async {
let adapter = wgpu::util::initialize_adapter_from_env_or_default(
&instance,
Some(&surface),
)
.await
.expect("Create adapter");
let capabilities = surface.get_capabilities(&adapter);
let adapter_features = adapter.features();
let (device, queue) = adapter
.request_device(
&wgpu::DeviceDescriptor {
label: None,
required_features: adapter_features
& wgpu::Features::default(),
required_limits: wgpu::Limits::default(),
},
None,
)
.await
.expect("Request device");
#[cfg(target_arch = "wasm32")]
let needed_limits = wgpu::Limits::downlevel_webgl2_defaults()
.using_resolution(adapter.limits());
(
capabilities
.formats
.iter()
.copied()
.find(wgpu::TextureFormat::is_srgb)
.or_else(|| {
capabilities.formats.first().copied()
})
.expect("Get preferred format"),
adapter,
device,
queue,
)
});
#[cfg(not(target_arch = "wasm32"))]
let needed_limits = wgpu::Limits::default();
let capabilities = surface.get_capabilities(&adapter);
let (device, queue) = adapter
.request_device(
&wgpu::DeviceDescriptor {
label: None,
required_features: adapter_features
& wgpu::Features::default(),
required_limits: needed_limits,
surface.configure(
&device,
&wgpu::SurfaceConfiguration {
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
format,
width: physical_size.width,
height: physical_size.height,
present_mode: wgpu::PresentMode::AutoVsync,
alpha_mode: wgpu::CompositeAlphaMode::Auto,
view_formats: vec![],
desired_maximum_frame_latency: 2,
},
None,
)
.await
.expect("Request device");
);
(
capabilities
.formats
.iter()
.copied()
.find(wgpu::TextureFormat::is_srgb)
.or_else(|| capabilities.formats.first().copied())
.expect("Get preferred format"),
adapter,
// Initialize scene and GUI controls
let scene = Scene::new(&device, format);
let controls = Controls::new();
// Initialize iced
let mut debug = Debug::new();
let engine =
Engine::new(&adapter, &device, &queue, format, None);
let mut renderer = Renderer::new(
&device,
&engine,
Font::default(),
Pixels::from(16),
);
let state = program::State::new(
controls,
viewport.logical_size(),
&mut renderer,
&mut debug,
);
// You should change this if you want to render continuously
event_loop.set_control_flow(ControlFlow::Wait);
*self = Self::Ready {
window,
device,
queue,
surface,
format,
engine,
renderer,
scene,
state,
cursor_position: None,
modifiers: ModifiersState::default(),
clipboard,
viewport,
resized: false,
debug,
};
}
}
fn window_event(
&mut self,
event_loop: &winit::event_loop::ActiveEventLoop,
_window_id: winit::window::WindowId,
event: WindowEvent,
) {
let Self::Ready {
window,
device,
queue,
)
});
surface,
format,
engine,
renderer,
scene,
state,
viewport,
cursor_position,
modifiers,
clipboard,
resized,
debug,
} = self
else {
return;
};
surface.configure(
&device,
&wgpu::SurfaceConfiguration {
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
format,
width: physical_size.width,
height: physical_size.height,
present_mode: wgpu::PresentMode::AutoVsync,
alpha_mode: wgpu::CompositeAlphaMode::Auto,
view_formats: vec![],
desired_maximum_frame_latency: 2,
},
);
match event {
WindowEvent::RedrawRequested => {
if *resized {
let size = window.inner_size();
let mut resized = false;
// Initialize scene and GUI controls
let scene = Scene::new(&device, format);
let controls = Controls::new();
// Initialize iced
let mut debug = Debug::new();
let mut renderer = Renderer::new(
Backend::new(&adapter, &device, &queue, Settings::default(), format),
Font::default(),
Pixels(16.0),
);
let mut state = program::State::new(
controls,
viewport.logical_size(),
&mut renderer,
&mut debug,
);
// Run event loop
event_loop.run(move |event, window_target| {
// You should change this if you want to render continuously
window_target.set_control_flow(ControlFlow::Wait);
match event {
Event::WindowEvent {
event: WindowEvent::RedrawRequested,
..
} => {
if resized {
let size = window.inner_size();
viewport = Viewport::with_physical_size(
Size::new(size.width, size.height),
window.scale_factor(),
);
surface.configure(
&device,
&wgpu::SurfaceConfiguration {
format,
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
width: size.width,
height: size.height,
present_mode: wgpu::PresentMode::AutoVsync,
alpha_mode: wgpu::CompositeAlphaMode::Auto,
view_formats: vec![],
desired_maximum_frame_latency: 2,
},
);
resized = false;
}
match surface.get_current_texture() {
Ok(frame) => {
let mut encoder = device.create_command_encoder(
&wgpu::CommandEncoderDescriptor { label: None },
*viewport = Viewport::with_physical_size(
Size::new(size.width, size.height),
window.scale_factor(),
);
let program = state.program();
let view = frame.texture.create_view(
&wgpu::TextureViewDescriptor::default(),
surface.configure(
device,
&wgpu::SurfaceConfiguration {
format: *format,
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
width: size.width,
height: size.height,
present_mode: wgpu::PresentMode::AutoVsync,
alpha_mode: wgpu::CompositeAlphaMode::Auto,
view_formats: vec![],
desired_maximum_frame_latency: 2,
},
);
{
// We clear the frame
let mut render_pass = Scene::clear(
&view,
&mut encoder,
program.background_color(),
*resized = false;
}
match surface.get_current_texture() {
Ok(frame) => {
let mut encoder = device.create_command_encoder(
&wgpu::CommandEncoderDescriptor { label: None },
);
// Draw the scene
scene.draw(&mut render_pass);
}
let program = state.program();
// And then iced on top
renderer.with_primitives(|backend, primitive| {
backend.present(
&device,
&queue,
let view = frame.texture.create_view(
&wgpu::TextureViewDescriptor::default(),
);
{
// We clear the frame
let mut render_pass = Scene::clear(
&view,
&mut encoder,
program.background_color(),
);
// Draw the scene
scene.draw(&mut render_pass);
}
// And then iced on top
renderer.present(
engine,
device,
queue,
&mut encoder,
None,
frame.texture.format(),
&view,
primitive,
&viewport,
viewport,
&debug.overlay(),
);
});
// Then we submit the work
queue.submit(Some(encoder.finish()));
frame.present();
// Then we submit the work
engine.submit(queue, encoder);
frame.present();
// Update the mouse cursor
window.set_cursor_icon(
iced_winit::conversion::mouse_interaction(
state.mouse_interaction(),
),
);
}
Err(error) => match error {
wgpu::SurfaceError::OutOfMemory => {
panic!(
"Swapchain error: {error}. \
// Update the mouse cursor
window.set_cursor(
iced_winit::conversion::mouse_interaction(
state.mouse_interaction(),
),
);
}
Err(error) => match error {
wgpu::SurfaceError::OutOfMemory => {
panic!(
"Swapchain error: {error}. \
Rendering cannot continue."
)
}
_ => {
// Try rendering again next frame.
window.request_redraw();
}
},
}
}
WindowEvent::CursorMoved { position, .. } => {
*cursor_position = Some(position);
}
WindowEvent::ModifiersChanged(new_modifiers) => {
*modifiers = new_modifiers.state();
}
WindowEvent::Resized(_) => {
*resized = true;
}
WindowEvent::CloseRequested => {
event_loop.exit();
}
_ => {}
}
// Map window event to iced event
if let Some(event) = iced_winit::conversion::window_event(
window::Id::MAIN,
event,
window.scale_factor(),
*modifiers,
) {
state.queue_event(event);
}
// If there are events pending
if !state.is_queue_empty() {
// We update iced
let _ = state.update(
viewport.logical_size(),
cursor_position
.map(|p| {
conversion::cursor_position(
p,
viewport.scale_factor(),
)
}
_ => {
// Try rendering again next frame.
window.request_redraw();
}
})
.map(mouse::Cursor::Available)
.unwrap_or(mouse::Cursor::Unavailable),
renderer,
&Theme::Dark,
&renderer::Style {
text_color: Color::WHITE,
},
}
clipboard,
debug,
);
// and request a redraw
window.request_redraw();
}
Event::WindowEvent { event, .. } => {
match event {
WindowEvent::CursorMoved { position, .. } => {
cursor_position = Some(position);
}
WindowEvent::ModifiersChanged(new_modifiers) => {
modifiers = new_modifiers.state();
}
WindowEvent::Resized(_) => {
resized = true;
}
WindowEvent::CloseRequested => {
window_target.exit();
}
_ => {}
}
// Map window event to iced event
if let Some(event) = iced_winit::conversion::window_event(
window::Id::MAIN,
event,
window.scale_factor(),
modifiers,
) {
state.queue_event(event);
}
}
_ => {}
}
}
// If there are events pending
if !state.is_queue_empty() {
// We update iced
let _ = state.update(
viewport.logical_size(),
cursor_position
.map(|p| {
conversion::cursor_position(p, viewport.scale_factor())
})
.map(mouse::Cursor::Available)
.unwrap_or(mouse::Cursor::Unavailable),
&mut renderer,
&Theme::Dark,
&renderer::Style {
text_color: Color::WHITE,
},
&mut clipboard,
&mut debug,
);
// and request a redraw
window.request_redraw();
}
})?;
Ok(())
let mut runner = Runner::Loading;
event_loop.run_app(&mut runner)
}

30
examples/layout/src/main.rs
View file

@ -1,8 +1,8 @@
use iced::keyboard;
use iced::mouse;
use iced::widget::{
button, canvas, checkbox, column, container, horizontal_space, pick_list,
row, scrollable, text,
button, canvas, center, checkbox, column, container, horizontal_space,
pick_list, row, scrollable, text,
};
use iced::{
color, Alignment, Element, Font, Length, Point, Rectangle, Renderer,
@ -76,22 +76,18 @@ impl Layout {
.spacing(20)
.align_items(Alignment::Center);
let example = container(if self.explain {
let example = center(if self.explain {
self.example.view().explain(color!(0x0000ff))
} else {
self.example.view()
})
.style(|theme, _status| {
.style(|theme| {
let palette = theme.extended_palette();
container::Appearance::default()
container::Style::default()
.with_border(palette.background.strong.color, 4.0)
})
.padding(4)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y();
.padding(4);
let controls = row([
(!self.example.is_first()).then_some(
@ -195,12 +191,7 @@ impl Default for Example {
}
fn centered<'a>() -> Element<'a, Message> {
container(text("I am centered!").size(50))
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(text("I am centered!").size(50)).into()
}
fn column_<'a>() -> Element<'a, Message> {
@ -245,10 +236,10 @@ fn application<'a>() -> Element<'a, Message> {
.padding(10)
.align_items(Alignment::Center),
)
.style(|theme, _status| {
.style(|theme| {
let palette = theme.extended_palette();
container::Appearance::default()
container::Style::default()
.with_border(palette.background.strong.color, 1)
});
@ -260,8 +251,7 @@ fn application<'a>() -> Element<'a, Message> {
.align_items(Alignment::Center),
)
.style(container::rounded_box)
.height(Length::Fill)
.center_y();
.center_y(Length::Fill);
let content = container(
scrollable(

2
examples/lazy/src/main.rs
View file

@ -173,7 +173,7 @@ impl App {
.style(button::danger);
row![
text(&item.name).color(item.color),
text(item.name.clone()).color(item.color),
horizontal_space(),
pick_list(Color::ALL, Some(item.color), move |color| {
Message::ItemColorChanged(item.clone(), color)

2
examples/loading_spinners/src/circular.rs
View file

@ -358,7 +358,7 @@ where
|renderer| {
use iced::advanced::graphics::geometry::Renderer as _;
renderer.draw(vec![geometry]);
renderer.draw_geometry(geometry);
},
);
}

10
examples/loading_spinners/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::widget::{column, container, row, slider, text};
use iced::{Element, Length};
use iced::widget::{center, column, row, slider, text};
use iced::Element;
use std::time::Duration;
@ -73,7 +73,7 @@ impl LoadingSpinners {
})
.spacing(20);
container(
center(
column.push(
row![
text("Cycle duration:"),
@ -87,10 +87,6 @@ impl LoadingSpinners {
.spacing(20.0),
),
)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
}
}

12
examples/loupe/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::widget::{button, column, container, text};
use iced::{Alignment, Element, Length};
use iced::widget::{button, center, column, text};
use iced::{Alignment, Element};
use loupe::loupe;
@ -31,7 +31,7 @@ impl Loupe {
}
fn view(&self) -> Element<Message> {
container(loupe(
center(loupe(
3.0,
column![
button("Increment").on_press(Message::Increment),
@ -41,10 +41,6 @@ impl Loupe {
.padding(20)
.align_items(Alignment::Center),
))
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
}
}
@ -159,7 +155,7 @@ mod loupe {
if cursor.is_over(layout.bounds()) {
mouse::Interaction::ZoomIn
} else {
mouse::Interaction::Idle
mouse::Interaction::None
}
}
}

368
examples/modal/src/main.rs
View file

@ -2,12 +2,11 @@ use iced::event::{self, Event};
use iced::keyboard;
use iced::keyboard::key;
use iced::widget::{
self, button, column, container, horizontal_space, pick_list, row, text,
text_input,
self, button, center, column, container, horizontal_space, mouse_area,
opaque, pick_list, row, stack, text, text_input,
};
use iced::{Alignment, Command, Element, Length, Subscription};
use iced::{Alignment, Color, Command, Element, Length, Subscription};
use modal::Modal;
use std::fmt;
pub fn main() -> iced::Result {
@ -99,13 +98,7 @@ impl App {
row![text("Top Left"), horizontal_space(), text("Top Right")]
.align_items(Alignment::Start)
.height(Length::Fill),
container(
button(text("Show Modal")).on_press(Message::ShowModal)
)
.center_x()
.center_y()
.width(Length::Fill)
.height(Length::Fill),
center(button(text("Show Modal")).on_press(Message::ShowModal)),
row![
text("Bottom Left"),
horizontal_space(),
@ -116,12 +109,10 @@ impl App {
]
.height(Length::Fill),
)
.padding(10)
.width(Length::Fill)
.height(Length::Fill);
.padding(10);
if self.show_modal {
let modal = container(
let signup = container(
column![
text("Sign Up").size(24),
column![
@ -162,9 +153,7 @@ impl App {
.padding(10)
.style(container::rounded_box);
Modal::new(content, modal)
.on_blur(Message::HideModal)
.into()
modal(content, signup, Message::HideModal)
} else {
content.into()
}
@ -203,326 +192,29 @@ impl fmt::Display for Plan {
}
}
mod modal {
use iced::advanced::layout::{self, Layout};
use iced::advanced::overlay;
use iced::advanced::renderer;
use iced::advanced::widget::{self, Widget};
use iced::advanced::{self, Clipboard, Shell};
use iced::alignment::Alignment;
use iced::event;
use iced::mouse;
use iced::{Color, Element, Event, Length, Point, Rectangle, Size, Vector};
/// A widget that centers a modal element over some base element
pub struct Modal<'a, Message, Theme, Renderer> {
base: Element<'a, Message, Theme, Renderer>,
modal: Element<'a, Message, Theme, Renderer>,
on_blur: Option<Message>,
}
impl<'a, Message, Theme, Renderer> Modal<'a, Message, Theme, Renderer> {
/// Returns a new [`Modal`]
pub fn new(
base: impl Into<Element<'a, Message, Theme, Renderer>>,
modal: impl Into<Element<'a, Message, Theme, Renderer>>,
) -> Self {
Self {
base: base.into(),
modal: modal.into(),
on_blur: None,
}
}
/// Sets the message that will be produces when the background
/// of the [`Modal`] is pressed
pub fn on_blur(self, on_blur: Message) -> Self {
Self {
on_blur: Some(on_blur),
..self
}
}
}
impl<'a, Message, Theme, Renderer> Widget<Message, Theme, Renderer>
for Modal<'a, Message, Theme, Renderer>
where
Renderer: advanced::Renderer,
Message: Clone,
{
fn children(&self) -> Vec<widget::Tree> {
vec![
widget::Tree::new(&self.base),
widget::Tree::new(&self.modal),
]
}
fn diff(&self, tree: &mut widget::Tree) {
tree.diff_children(&[&self.base, &self.modal]);
}
fn size(&self) -> Size<Length> {
self.base.as_widget().size()
}
fn layout(
&self,
tree: &mut widget::Tree,
renderer: &Renderer,
limits: &layout::Limits,
) -> layout::Node {
self.base.as_widget().layout(
&mut tree.children[0],
renderer,
limits,
)
}
fn on_event(
&mut self,
state: &mut widget::Tree,
event: Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
renderer: &Renderer,
clipboard: &mut dyn Clipboard,
shell: &mut Shell<'_, Message>,
viewport: &Rectangle,
) -> event::Status {
self.base.as_widget_mut().on_event(
&mut state.children[0],
event,
layout,
cursor,
renderer,
clipboard,
shell,
viewport,
)
}
fn draw(
&self,
state: &widget::Tree,
renderer: &mut Renderer,
theme: &Theme,
style: &renderer::Style,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
) {
self.base.as_widget().draw(
&state.children[0],
renderer,
theme,
style,
layout,
cursor,
viewport,
);
}
fn overlay<'b>(
&'b mut self,
state: &'b mut widget::Tree,
layout: Layout<'_>,
_renderer: &Renderer,
translation: Vector,
) -> Option<overlay::Element<'b, Message, Theme, Renderer>> {
Some(overlay::Element::new(Box::new(Overlay {
position: layout.position() + translation,
content: &mut self.modal,
tree: &mut state.children[1],
size: layout.bounds().size(),
on_blur: self.on_blur.clone(),
})))
}
fn mouse_interaction(
&self,
state: &widget::Tree,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &Renderer,
) -> mouse::Interaction {
self.base.as_widget().mouse_interaction(
&state.children[0],
layout,
cursor,
viewport,
renderer,
)
}
fn operate(
&self,
state: &mut widget::Tree,
layout: Layout<'_>,
renderer: &Renderer,
operation: &mut dyn widget::Operation<Message>,
) {
self.base.as_widget().operate(
&mut state.children[0],
layout,
renderer,
operation,
);
}
}
struct Overlay<'a, 'b, Message, Theme, Renderer> {
position: Point,
content: &'b mut Element<'a, Message, Theme, Renderer>,
tree: &'b mut widget::Tree,
size: Size,
on_blur: Option<Message>,
}
impl<'a, 'b, Message, Theme, Renderer>
overlay::Overlay<Message, Theme, Renderer>
for Overlay<'a, 'b, Message, Theme, Renderer>
where
Renderer: advanced::Renderer,
Message: Clone,
{
fn layout(
&mut self,
renderer: &Renderer,
_bounds: Size,
) -> layout::Node {
let limits = layout::Limits::new(Size::ZERO, self.size)
.width(Length::Fill)
.height(Length::Fill);
let child = self
.content
.as_widget()
.layout(self.tree, renderer, &limits)
.align(Alignment::Center, Alignment::Center, limits.max());
layout::Node::with_children(self.size, vec![child])
.move_to(self.position)
}
fn on_event(
&mut self,
event: Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
renderer: &Renderer,
clipboard: &mut dyn Clipboard,
shell: &mut Shell<'_, Message>,
) -> event::Status {
let content_bounds = layout.children().next().unwrap().bounds();
if let Some(message) = self.on_blur.as_ref() {
if let Event::Mouse(mouse::Event::ButtonPressed(
mouse::Button::Left,
)) = &event
{
if !cursor.is_over(content_bounds) {
shell.publish(message.clone());
return event::Status::Captured;
fn modal<'a, Message>(
base: impl Into<Element<'a, Message>>,
content: impl Into<Element<'a, Message>>,
on_blur: Message,
) -> Element<'a, Message>
where
Message: Clone + 'a,
{
stack![
base.into(),
mouse_area(center(opaque(content)).style(|_theme| {
container::Style {
background: Some(
Color {
a: 0.8,
..Color::BLACK
}
}
.into(),
),
..container::Style::default()
}
self.content.as_widget_mut().on_event(
self.tree,
event,
layout.children().next().unwrap(),
cursor,
renderer,
clipboard,
shell,
&layout.bounds(),
)
}
fn draw(
&self,
renderer: &mut Renderer,
theme: &Theme,
style: &renderer::Style,
layout: Layout<'_>,
cursor: mouse::Cursor,
) {
renderer.fill_quad(
renderer::Quad {
bounds: layout.bounds(),
..renderer::Quad::default()
},
Color {
a: 0.80,
..Color::BLACK
},
);
self.content.as_widget().draw(
self.tree,
renderer,
theme,
style,
layout.children().next().unwrap(),
cursor,
&layout.bounds(),
);
}
fn operate(
&mut self,
layout: Layout<'_>,
renderer: &Renderer,
operation: &mut dyn widget::Operation<Message>,
) {
self.content.as_widget().operate(
self.tree,
layout.children().next().unwrap(),
renderer,
operation,
);
}
fn mouse_interaction(
&self,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &Renderer,
) -> mouse::Interaction {
self.content.as_widget().mouse_interaction(
self.tree,
layout.children().next().unwrap(),
cursor,
viewport,
renderer,
)
}
fn overlay<'c>(
&'c mut self,
layout: Layout<'_>,
renderer: &Renderer,
) -> Option<overlay::Element<'c, Message, Theme, Renderer>> {
self.content.as_widget_mut().overlay(
self.tree,
layout.children().next().unwrap(),
renderer,
Vector::ZERO,
)
}
}
impl<'a, Message, Theme, Renderer> From<Modal<'a, Message, Theme, Renderer>>
for Element<'a, Message, Theme, Renderer>
where
Theme: 'a,
Message: 'a + Clone,
Renderer: 'a + advanced::Renderer,
{
fn from(modal: Modal<'a, Message, Theme, Renderer>) -> Self {
Element::new(modal)
}
}
}))
.on_press(on_blur)
]
.into()
}

13
examples/multi_window/src/main.rs
View file

@ -1,7 +1,9 @@
use iced::event;
use iced::executor;
use iced::multi_window::{self, Application};
use iced::widget::{button, column, container, scrollable, text, text_input};
use iced::widget::{
button, center, column, container, scrollable, text, text_input,
};
use iced::window;
use iced::{
Alignment, Command, Element, Length, Point, Settings, Subscription, Theme,
@ -128,12 +130,7 @@ impl multi_window::Application for Example {
fn view(&self, window: window::Id) -> Element<Message> {
let content = self.windows.get(&window).unwrap().view(window);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
fn theme(&self, window: window::Id) -> Self::Theme {
@ -210,6 +207,6 @@ impl Window {
.align_items(Alignment::Center),
);
container(content).width(200).center_x().into()
container(content).center_x(200).into()
}
}

32
examples/pane_grid/src/main.rs
View file

@ -290,10 +290,8 @@ fn view_content<'a>(
.align_items(Alignment::Center);
container(scrollable(content))
.width(Length::Fill)
.height(Length::Fill)
.center_y(Length::Fill)
.padding(5)
.center_y()
.into()
}
@ -336,39 +334,30 @@ mod style {
use iced::widget::container;
use iced::{Border, Theme};
pub fn title_bar_active(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
pub fn title_bar_active(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
container::Appearance {
container::Style {
text_color: Some(palette.background.strong.text),
background: Some(palette.background.strong.color.into()),
..Default::default()
}
}
pub fn title_bar_focused(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
pub fn title_bar_focused(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
container::Appearance {
container::Style {
text_color: Some(palette.primary.strong.text),
background: Some(palette.primary.strong.color.into()),
..Default::default()
}
}
pub fn pane_active(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
pub fn pane_active(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
container::Appearance {
container::Style {
background: Some(palette.background.weak.color.into()),
border: Border {
width: 2.0,
@ -379,13 +368,10 @@ mod style {
}
}
pub fn pane_focused(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
pub fn pane_focused(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
container::Appearance {
container::Style {
background: Some(palette.background.weak.color.into()),
border: Border {
width: 2.0,

11
examples/pokedex/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::futures;
use iced::widget::{self, column, container, image, row, text};
use iced::widget::{self, center, column, image, row, text};
use iced::{Alignment, Command, Element, Length};
pub fn main() -> iced::Result {
@ -83,12 +83,7 @@ impl Pokedex {
.align_items(Alignment::End),
};
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
}
@ -186,7 +181,7 @@ impl Pokemon {
{
let bytes = reqwest::get(&url).await?.bytes().await?;
Ok(image::Handle::from_memory(bytes))
Ok(image::Handle::from_bytes(bytes))
}
#[cfg(target_arch = "wasm32")]

14
examples/qr_code/src/main.rs
View file

@ -1,7 +1,5 @@
use iced::widget::{
column, container, pick_list, qr_code, row, text, text_input,
};
use iced::{Alignment, Element, Length, Theme};
use iced::widget::{center, column, pick_list, qr_code, row, text, text_input};
use iced::{Alignment, Element, Theme};
pub fn main() -> iced::Result {
iced::program(
@ -72,13 +70,7 @@ impl QRGenerator {
.spacing(20)
.align_items(Alignment::Center);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.padding(20)
.center_x()
.center_y()
.into()
center(content).padding(20).into()
}
fn theme(&self) -> Theme {

24
examples/screenshot/src/main.rs
View file

@ -109,7 +109,7 @@ impl Example {
fn view(&self) -> Element<'_, Message> {
let image: Element<Message> = if let Some(screenshot) = &self.screenshot
{
image(image::Handle::from_pixels(
image(image::Handle::from_rgba(
screenshot.size.width,
screenshot.size.height,
screenshot.clone(),
@ -123,12 +123,9 @@ impl Example {
};
let image = container(image)
.center_y(Length::FillPortion(2))
.padding(10)
.style(container::rounded_box)
.width(Length::FillPortion(2))
.height(Length::Fill)
.center_x()
.center_y();
.style(container::rounded_box);
let crop_origin_controls = row![
text("X:")
@ -213,12 +210,7 @@ impl Example {
.spacing(40)
};
let side_content = container(controls)
.align_x(alignment::Horizontal::Center)
.width(Length::FillPortion(1))
.height(Length::Fill)
.center_y()
.center_x();
let side_content = container(controls).center_y(Length::Fill);
let content = row![side_content, image]
.spacing(10)
@ -226,13 +218,7 @@ impl Example {
.height(Length::Fill)
.align_items(Alignment::Center);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.padding(10)
.center_x()
.center_y()
.into()
container(content).padding(10).into()
}
fn subscription(&self) -> Subscription<Message> {

6
examples/scrollable/src/main.rs
View file

@ -327,7 +327,7 @@ impl ScrollableDemo {
.spacing(10)
.into();
container(content).padding(20).center_x().center_y().into()
container(content).padding(20).into()
}
fn theme(&self) -> Theme {
@ -341,8 +341,8 @@ impl Default for ScrollableDemo {
}
}
fn progress_bar_custom_style(theme: &Theme) -> progress_bar::Appearance {
progress_bar::Appearance {
fn progress_bar_custom_style(theme: &Theme) -> progress_bar::Style {
progress_bar::Style {
background: theme.extended_palette().background.strong.color.into(),
bar: Color::from_rgb8(250, 85, 134).into(),
border: Border::default(),

4
examples/sierpinski_triangle/src/main.rs
View file

@ -1,6 +1,6 @@
use iced::mouse;
use iced::widget::canvas::event::{self, Event};
use iced::widget::canvas::{self, Canvas};
use iced::widget::canvas::{self, Canvas, Geometry};
use iced::widget::{column, row, slider, text};
use iced::{Color, Length, Point, Rectangle, Renderer, Size, Theme};
@ -111,7 +111,7 @@ impl canvas::Program<Message> for SierpinskiGraph {
_theme: &Theme,
bounds: Rectangle,
_cursor: mouse::Cursor,
) -> Vec<canvas::Geometry> {
) -> Vec<Geometry> {
let geom = self.cache.draw(renderer, bounds.size(), |frame| {
frame.stroke(
&canvas::Path::rectangle(Point::ORIGIN, frame.size()),

14
examples/slider/src/main.rs
View file

@ -1,4 +1,4 @@
use iced::widget::{column, container, slider, text, vertical_slider};
use iced::widget::{center, column, container, slider, text, vertical_slider};
use iced::{Element, Length};
pub fn main() -> iced::Result {
@ -54,18 +54,14 @@ impl Slider {
let text = text(self.value);
container(
center(
column![
container(v_slider).width(Length::Fill).center_x(),
container(h_slider).width(Length::Fill).center_x(),
container(text).width(Length::Fill).center_x(),
container(v_slider).center_x(Length::Fill),
container(h_slider).center_x(Length::Fill),
container(text).center_x(Length::Fill)
]
.spacing(25),
)
.height(Length::Fill)
.width(Length::Fill)
.center_x()
.center_y()
.into()
}
}

4
examples/solar_system/src/main.rs
View file

@ -10,7 +10,7 @@ use iced::mouse;
use iced::widget::canvas;
use iced::widget::canvas::gradient;
use iced::widget::canvas::stroke::{self, Stroke};
use iced::widget::canvas::Path;
use iced::widget::canvas::{Geometry, Path};
use iced::window;
use iced::{
Color, Element, Length, Point, Rectangle, Renderer, Size, Subscription,
@ -130,7 +130,7 @@ impl<Message> canvas::Program<Message> for State {
_theme: &Theme,
bounds: Rectangle,
_cursor: mouse::Cursor,
) -> Vec<canvas::Geometry> {
) -> Vec<Geometry> {
use std::f32::consts::PI;
let background =

11
examples/stopwatch/src/main.rs
View file

@ -1,8 +1,8 @@
use iced::alignment;
use iced::keyboard;
use iced::time;
use iced::widget::{button, column, container, row, text};
use iced::{Alignment, Element, Length, Subscription, Theme};
use iced::widget::{button, center, column, row, text};
use iced::{Alignment, Element, Subscription, Theme};
use std::time::{Duration, Instant};
@ -128,12 +128,7 @@ impl Stopwatch {
.align_items(Alignment::Center)
.spacing(20);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
fn theme(&self) -> Theme {

13
examples/styling/src/main.rs
View file

@ -1,7 +1,7 @@
use iced::widget::{
button, checkbox, column, container, horizontal_rule, pick_list,
progress_bar, row, scrollable, slider, text, text_input, toggler,
vertical_rule, vertical_space,
button, center, checkbox, column, horizontal_rule, pick_list, progress_bar,
row, scrollable, slider, text, text_input, toggler, vertical_rule,
vertical_space,
};
use iced::{Alignment, Element, Length, Theme};
@ -106,12 +106,7 @@ impl Styling {
.padding(20)
.max_width(600);
container(content)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content).into()
}
fn theme(&self) -> Theme {

19
examples/svg/src/main.rs
View file

@ -1,4 +1,4 @@
use iced::widget::{checkbox, column, container, svg};
use iced::widget::{center, checkbox, column, container, svg};
use iced::{color, Element, Length};
pub fn main() -> iced::Result {
@ -31,7 +31,7 @@ impl Tiger {
));
let svg = svg(handle).width(Length::Fill).height(Length::Fill).style(
|_theme, _status| svg::Appearance {
|_theme, _status| svg::Style {
color: if self.apply_color_filter {
Some(color!(0x0000ff))
} else {
@ -44,19 +44,12 @@ impl Tiger {
checkbox("Apply a color filter", self.apply_color_filter)
.on_toggle(Message::ToggleColorFilter);
container(
column![
svg,
container(apply_color_filter).width(Length::Fill).center_x()
]
.spacing(20)
.height(Length::Fill),
center(
column![svg, container(apply_color_filter).center_x(Length::Fill)]
.spacing(20)
.height(Length::Fill),
)
.width(Length::Fill)
.height(Length::Fill)
.padding(20)
.center_x()
.center_y()
.into()
}
}

11
examples/system_information/src/main.rs
View file

@ -1,5 +1,5 @@
use iced::widget::{button, column, container, text};
use iced::{system, Command, Element, Length};
use iced::widget::{button, center, column, text};
use iced::{system, Command, Element};
pub fn main() -> iced::Result {
iced::program("System Information - Iced", Example::update, Example::view)
@ -132,11 +132,6 @@ impl Example {
}
};
container(content)
.center_x()
.center_y()
.width(Length::Fill)
.height(Length::Fill)
.into()
center(content).into()
}
}

13
examples/the_matrix/Cargo.toml Normal file
View file

@ -0,0 +1,13 @@
[package]
name = "the_matrix"
version = "0.1.0"
authors = ["Héctor Ramón Jiménez <hector0193@gmail.com>"]
edition = "2021"
publish = false
[dependencies]
iced.workspace = true
iced.features = ["canvas", "tokio", "debug"]
rand = "0.8"
tracing-subscriber = "0.3"

115
examples/the_matrix/src/main.rs Normal file
View file

@ -0,0 +1,115 @@
use iced::mouse;
use iced::time::{self, Instant};
use iced::widget::canvas;
use iced::{
Color, Element, Font, Length, Point, Rectangle, Renderer, Subscription,
Theme,
};
use std::cell::RefCell;
pub fn main() -> iced::Result {
tracing_subscriber::fmt::init();
iced::program("The Matrix - Iced", TheMatrix::update, TheMatrix::view)
.subscription(TheMatrix::subscription)
.antialiasing(true)
.run()
}
#[derive(Default)]
struct TheMatrix {
tick: usize,
}
#[derive(Debug, Clone, Copy)]
enum Message {
Tick(Instant),
}
impl TheMatrix {
fn update(&mut self, message: Message) {
match message {
Message::Tick(_now) => {
self.tick += 1;
}
}
}
fn view(&self) -> Element<Message> {
canvas(self as &Self)
.width(Length::Fill)
.height(Length::Fill)
.into()
}
fn subscription(&self) -> Subscription<Message> {
time::every(std::time::Duration::from_millis(50)).map(Message::Tick)
}
}
impl<Message> canvas::Program<Message> for TheMatrix {
type State = RefCell<Vec<canvas::Cache>>;
fn draw(
&self,
state: &Self::State,
renderer: &Renderer,
_theme: &Theme,
bounds: Rectangle,
_cursor: mouse::Cursor,
) -> Vec<canvas::Geometry> {
use rand::distributions::Distribution;
use rand::Rng;
const CELL_SIZE: f32 = 10.0;
let mut caches = state.borrow_mut();
if caches.is_empty() {
let group = canvas::Group::unique();
caches.resize_with(30, || canvas::Cache::with_group(group));
}
vec![caches[self.tick % caches.len()].draw(
renderer,
bounds.size(),
|frame| {
frame.fill_rectangle(Point::ORIGIN, frame.size(), Color::BLACK);
let mut rng = rand::thread_rng();
let rows = (frame.height() / CELL_SIZE).ceil() as usize;
let columns = (frame.width() / CELL_SIZE).ceil() as usize;
for row in 0..rows {
for column in 0..columns {
let position = Point::new(
column as f32 * CELL_SIZE,
row as f32 * CELL_SIZE,
);
let alphas = [0.05, 0.1, 0.2, 0.5];
let weights = [10, 4, 2, 1];
let distribution =
rand::distributions::WeightedIndex::new(weights)
.expect("Create distribution");
frame.fill_text(canvas::Text {
content: rng.gen_range('!'..'z').to_string(),
position,
color: Color {
a: alphas[distribution.sample(&mut rng)],
g: 1.0,
..Color::BLACK
},
size: CELL_SIZE.into(),
font: Font::MONOSPACE,
..canvas::Text::default()
});
}
}
},
)]
}
}

34
examples/toast/src/main.rs
View file

@ -2,7 +2,7 @@ use iced::event::{self, Event};
use iced::keyboard;
use iced::keyboard::key;
use iced::widget::{
self, button, column, container, pick_list, row, slider, text, text_input,
self, button, center, column, pick_list, row, slider, text, text_input,
};
use iced::{Alignment, Command, Element, Length, Subscription};
@ -102,7 +102,7 @@ impl App {
.then_some(Message::Add),
);
let content = container(
let content = center(
column![
subtitle(
"Title",
@ -146,11 +146,7 @@ impl App {
]
.spacing(10)
.max_width(200),
)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y();
);
toast::Manager::new(content, &self.toasts, Message::Close)
.timeout(self.timeout_secs)
@ -651,45 +647,33 @@ mod toast {
}
}
fn styled(pair: theme::palette::Pair) -> container::Appearance {
container::Appearance {
fn styled(pair: theme::palette::Pair) -> container::Style {
container::Style {
background: Some(pair.color.into()),
text_color: pair.text.into(),
..Default::default()
}
}
fn primary(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
fn primary(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
styled(palette.primary.weak)
}
fn secondary(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
fn secondary(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
styled(palette.secondary.weak)
}
fn success(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
fn success(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
styled(palette.success.weak)
}
fn danger(
theme: &Theme,
_status: container::Status,
) -> container::Appearance {
fn danger(theme: &Theme) -> container::Style {
let palette = theme.extended_palette();
styled(palette.danger.weak)

17
examples/todos/src/main.rs
View file

@ -1,8 +1,8 @@
use iced::alignment::{self, Alignment};
use iced::keyboard;
use iced::widget::{
self, button, checkbox, column, container, keyed_column, row, scrollable,
text, text_input, Text,
self, button, center, checkbox, column, container, keyed_column, row,
scrollable, text, text_input, Text,
};
use iced::window;
use iced::{Command, Element, Font, Length, Subscription};
@ -238,7 +238,10 @@ impl Todos {
.spacing(20)
.max_width(800);
scrollable(container(content).padding(40).center_x()).into()
scrollable(
container(content).center_x(Length::Fill).padding(40),
)
.into()
}
}
}
@ -435,19 +438,16 @@ impl Filter {
}
fn loading_message<'a>() -> Element<'a, Message> {
container(
center(
text("Loading...")
.horizontal_alignment(alignment::Horizontal::Center)
.size(50),
)
.width(Length::Fill)
.height(Length::Fill)
.center_y()
.into()
}
fn empty_message(message: &str) -> Element<'_, Message> {
container(
center(
text(message)
.width(Length::Fill)
.size(25)
@ -455,7 +455,6 @@ fn empty_message(message: &str) -> Element<'_, Message> {
.color([0.7, 0.7, 0.7]),
)
.height(200)
.center_y()
.into()
}

11
examples/tooltip/src/main.rs
View file

@ -1,6 +1,6 @@
use iced::widget::tooltip::Position;
use iced::widget::{button, container, tooltip};
use iced::{Element, Length};
use iced::widget::{button, center, container, tooltip};
use iced::Element;
pub fn main() -> iced::Result {
iced::run("Tooltip - Iced", Tooltip::update, Tooltip::view)
@ -43,12 +43,7 @@ impl Tooltip {
.gap(10)
.style(container::rounded_box);
container(tooltip)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(tooltip).into()
}
}

14
examples/tour/src/main.rs
View file

@ -76,11 +76,10 @@ impl Tour {
} else {
content
})
.width(Length::Fill)
.center_x(),
.center_x(Length::Fill),
);
container(scrollable).height(Length::Fill).center_y().into()
container(scrollable).center_y(Length::Fill).into()
}
}
@ -357,7 +356,7 @@ impl<'a> Step {
.into()
}
fn container(title: &str) -> Column<'a, StepMessage> {
fn container(title: &str) -> Column<'_, StepMessage> {
column![text(title).size(50)].spacing(20)
}
@ -589,7 +588,7 @@ impl<'a> Step {
value: &str,
is_secure: bool,
is_showing_icon: bool,
) -> Column<'a, StepMessage> {
) -> Column<'_, StepMessage> {
let mut text_input = text_input("Type something to continue...", value)
.on_input(StepMessage::InputChanged)
.padding(10)
@ -670,11 +669,10 @@ fn ferris<'a>(
.filter_method(filter_method)
.width(width),
)
.width(Length::Fill)
.center_x()
.center_x(Length::Fill)
}
fn padded_button<'a, Message: Clone>(label: &str) -> Button<'a, Message> {
fn padded_button<Message: Clone>(label: &str) -> Button<'_, Message> {
button(text(label)).padding([12, 24])
}

11
examples/url_handler/src/main.rs
View file

@ -1,6 +1,6 @@
use iced::event::{self, Event};
use iced::widget::{container, text};
use iced::{Element, Length, Subscription};
use iced::widget::{center, text};
use iced::{Element, Subscription};
pub fn main() -> iced::Result {
iced::program("URL Handler - Iced", App::update, App::view)
@ -44,11 +44,6 @@ impl App {
None => text("No URL received yet!"),
};
container(content.size(48))
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
center(content.size(48)).into()
}
}

23
examples/websocket/src/echo.rs
View file

@ -2,6 +2,7 @@ pub mod server;
use iced::futures;
use iced::subscription::{self, Subscription};
use iced::widget::text;
use futures::channel::mpsc;
use futures::sink::SinkExt;
@ -136,16 +137,24 @@ impl Message {
pub fn disconnected() -> Self {
Message::Disconnected
}
pub fn as_str(&self) -> &str {
match self {
Message::Connected => "Connected successfully!",
Message::Disconnected => "Connection lost... Retrying...",
Message::User(message) => message.as_str(),
}
}
}
impl fmt::Display for Message {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Message::Connected => write!(f, "Connected successfully!"),
Message::Disconnected => {
write!(f, "Connection lost... Retrying...")
}
Message::User(message) => write!(f, "{message}"),
}
f.write_str(self.as_str())
}
}
impl<'a> text::IntoFragment<'a> for &'a Message {
fn into_fragment(self) -> text::Fragment<'a> {
text::Fragment::Borrowed(self.as_str())
}
}

19
examples/websocket/src/main.rs
View file

@ -2,7 +2,7 @@ mod echo;
use iced::alignment::{self, Alignment};
use iced::widget::{
button, column, container, row, scrollable, text, text_input,
self, button, center, column, row, scrollable, text, text_input,
};
use iced::{color, Command, Element, Length, Subscription};
use once_cell::sync::Lazy;
@ -31,7 +31,10 @@ enum Message {
impl WebSocket {
fn load() -> Command<Message> {
Command::perform(echo::server::run(), |_| Message::Server)
Command::batch([
Command::perform(echo::server::run(), |_| Message::Server),
widget::focus_next(),
])
}
fn update(&mut self, message: Message) -> Command<Message> {
@ -85,21 +88,15 @@ impl WebSocket {
fn view(&self) -> Element<Message> {
let message_log: Element<_> = if self.messages.is_empty() {
container(
center(
text("Your messages will appear here...")
.color(color!(0x888888)),
)
.width(Length::Fill)
.height(Length::Fill)
.center_x()
.center_y()
.into()
} else {
scrollable(
column(
self.messages.iter().cloned().map(text).map(Element::from),
)
.spacing(10),
column(self.messages.iter().map(text).map(Element::from))
.spacing(10),
)
.id(MESSAGE_LOG.clone())
.height(Length::Fill)