Add tour_glow for OpenGL platforms
This commit is contained in:
parent
1b6cf05f5f
commit
45ecf02504
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@ -83,6 +83,7 @@ members = [
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"examples/svg",
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"examples/todos",
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"examples/tour",
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"examples/tour_glow",
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"examples/tooltip",
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"examples/url_handler",
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]
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@ -0,0 +1,10 @@
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[package]
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name = "tour_glow"
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version = "0.1.0"
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authors = ["Héctor Ramón Jiménez <hector0193@gmail.com>"]
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edition = "2018"
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publish = false
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[dependencies]
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iced = { path = "../..", features = ["glow", "debug"] }
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env_logger = "0.8"
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@ -0,0 +1,28 @@
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## Tour
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A simple UI tour that can run both on native platforms and the web! It showcases different widgets that can be built using Iced.
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The __[`main`]__ file contains all the code of the example! All the cross-platform GUI is defined in terms of __state__, __messages__, __update logic__ and __view logic__.
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<div align="center">
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<a href="https://gfycat.com/politeadorableiberianmole">
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<img src="https://thumbs.gfycat.com/PoliteAdorableIberianmole-small.gif">
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</a>
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</div>
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[`main`]: src/main.rs
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[`iced_winit`]: ../../winit
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[`iced_native`]: ../../native
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[`iced_wgpu`]: ../../wgpu
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[`iced_web`]: ../../web
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[`winit`]: https://github.com/rust-windowing/winit
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[`wgpu`]: https://github.com/gfx-rs/wgpu-rs
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You can run the native version with `cargo run`:
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```
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cargo run --package tour
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```
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The web version can be run by following [the usage instructions of `iced_web`] or by accessing [iced.rs](https://iced.rs/)!
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[the usage instructions of `iced_web`]: ../../web#usage
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@ -0,0 +1,811 @@
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use iced::{
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button, scrollable, slider, text_input, Button, Checkbox, Color, Column,
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Container, Element, HorizontalAlignment, Length, Radio, Row,
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Sandbox, Scrollable, Settings, Slider, Space, Text, TextInput, Toggler,
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};
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pub fn main() -> iced::Result {
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env_logger::init();
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Tour::run(Settings::default())
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}
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pub struct Tour {
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steps: Steps,
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scroll: scrollable::State,
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back_button: button::State,
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next_button: button::State,
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debug: bool,
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}
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impl Sandbox for Tour {
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type Message = Message;
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fn new() -> Tour {
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Tour {
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steps: Steps::new(),
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scroll: scrollable::State::new(),
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back_button: button::State::new(),
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next_button: button::State::new(),
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debug: false,
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}
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}
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fn title(&self) -> String {
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format!("{} - Iced", self.steps.title())
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}
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fn update(&mut self, event: Message) {
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match event {
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Message::BackPressed => {
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self.steps.go_back();
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}
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Message::NextPressed => {
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self.steps.advance();
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}
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Message::StepMessage(step_msg) => {
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self.steps.update(step_msg, &mut self.debug);
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}
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}
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}
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fn view(&mut self) -> Element<Message> {
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let Tour {
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steps,
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scroll,
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back_button,
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next_button,
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..
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} = self;
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let mut controls = Row::new();
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if steps.has_previous() {
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controls = controls.push(
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button(back_button, "Back")
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.on_press(Message::BackPressed)
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.style(style::Button::Secondary),
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);
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}
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controls = controls.push(Space::with_width(Length::Fill));
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if steps.can_continue() {
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controls = controls.push(
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button(next_button, "Next")
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.on_press(Message::NextPressed)
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.style(style::Button::Primary),
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);
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}
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let content: Element<_> = Column::new()
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.max_width(540)
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.spacing(20)
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.padding(20)
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.push(steps.view(self.debug).map(Message::StepMessage))
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.push(controls)
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.into();
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let content = if self.debug {
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content.explain(Color::BLACK)
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} else {
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content
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};
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let scrollable = Scrollable::new(scroll)
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.push(Container::new(content).width(Length::Fill).center_x());
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Container::new(scrollable)
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.height(Length::Fill)
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.center_y()
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.into()
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}
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}
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#[derive(Debug, Clone)]
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pub enum Message {
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BackPressed,
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NextPressed,
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StepMessage(StepMessage),
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}
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struct Steps {
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steps: Vec<Step>,
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current: usize,
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}
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impl Steps {
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fn new() -> Steps {
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Steps {
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steps: vec![
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Step::Welcome,
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Step::Slider {
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state: slider::State::new(),
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value: 50,
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},
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Step::RowsAndColumns {
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layout: Layout::Row,
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spacing_slider: slider::State::new(),
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spacing: 20,
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},
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Step::Text {
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size_slider: slider::State::new(),
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size: 30,
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color_sliders: [slider::State::new(); 3],
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color: Color::BLACK,
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},
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Step::Radio { selection: None },
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Step::Toggler {
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can_continue: false,
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},
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Step::Image {
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width: 300,
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slider: slider::State::new(),
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},
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Step::Scrollable,
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Step::TextInput {
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value: String::new(),
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is_secure: false,
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state: text_input::State::new(),
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},
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Step::Debugger,
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Step::End,
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],
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current: 0,
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}
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}
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fn update(&mut self, msg: StepMessage, debug: &mut bool) {
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self.steps[self.current].update(msg, debug);
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}
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fn view(&mut self, debug: bool) -> Element<StepMessage> {
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self.steps[self.current].view(debug)
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}
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fn advance(&mut self) {
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if self.can_continue() {
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self.current += 1;
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}
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}
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fn go_back(&mut self) {
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if self.has_previous() {
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self.current -= 1;
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}
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}
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fn has_previous(&self) -> bool {
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self.current > 0
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}
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fn can_continue(&self) -> bool {
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self.current + 1 < self.steps.len()
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&& self.steps[self.current].can_continue()
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}
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fn title(&self) -> &str {
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self.steps[self.current].title()
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}
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}
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enum Step {
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Welcome,
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Slider {
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state: slider::State,
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value: u8,
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},
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RowsAndColumns {
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layout: Layout,
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spacing_slider: slider::State,
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spacing: u16,
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},
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Text {
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size_slider: slider::State,
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size: u16,
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color_sliders: [slider::State; 3],
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color: Color,
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},
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Radio {
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selection: Option<Language>,
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},
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Toggler {
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can_continue: bool,
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},
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Image {
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width: u16,
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slider: slider::State,
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},
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Scrollable,
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TextInput {
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value: String,
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is_secure: bool,
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state: text_input::State,
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},
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Debugger,
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End,
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}
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#[derive(Debug, Clone)]
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pub enum StepMessage {
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SliderChanged(u8),
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LayoutChanged(Layout),
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SpacingChanged(u16),
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TextSizeChanged(u16),
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TextColorChanged(Color),
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LanguageSelected(Language),
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ImageWidthChanged(u16),
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InputChanged(String),
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ToggleSecureInput(bool),
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DebugToggled(bool),
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TogglerChanged(bool),
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}
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impl<'a> Step {
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fn update(&mut self, msg: StepMessage, debug: &mut bool) {
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match msg {
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StepMessage::DebugToggled(value) => {
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if let Step::Debugger = self {
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*debug = value;
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}
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}
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StepMessage::LanguageSelected(language) => {
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if let Step::Radio { selection } = self {
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*selection = Some(language);
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}
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}
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StepMessage::SliderChanged(new_value) => {
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if let Step::Slider { value, .. } = self {
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*value = new_value;
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}
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}
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StepMessage::TextSizeChanged(new_size) => {
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if let Step::Text { size, .. } = self {
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*size = new_size;
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}
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}
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StepMessage::TextColorChanged(new_color) => {
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if let Step::Text { color, .. } = self {
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*color = new_color;
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}
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}
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StepMessage::LayoutChanged(new_layout) => {
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if let Step::RowsAndColumns { layout, .. } = self {
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*layout = new_layout;
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}
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}
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StepMessage::SpacingChanged(new_spacing) => {
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if let Step::RowsAndColumns { spacing, .. } = self {
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*spacing = new_spacing;
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}
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}
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StepMessage::ImageWidthChanged(new_width) => {
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if let Step::Image { width, .. } = self {
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*width = new_width;
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}
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}
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StepMessage::InputChanged(new_value) => {
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if let Step::TextInput { value, .. } = self {
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*value = new_value;
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}
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}
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StepMessage::ToggleSecureInput(toggle) => {
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if let Step::TextInput { is_secure, .. } = self {
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*is_secure = toggle;
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}
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}
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StepMessage::TogglerChanged(value) => {
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if let Step::Toggler { can_continue, .. } = self {
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*can_continue = value;
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}
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}
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};
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}
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fn title(&self) -> &str {
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match self {
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Step::Welcome => "Welcome",
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Step::Radio { .. } => "Radio button",
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Step::Toggler { .. } => "Toggler",
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Step::Slider { .. } => "Slider",
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Step::Text { .. } => "Text",
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Step::Image { .. } => "Image",
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Step::RowsAndColumns { .. } => "Rows and columns",
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Step::Scrollable => "Scrollable",
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Step::TextInput { .. } => "Text input",
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Step::Debugger => "Debugger",
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Step::End => "End",
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}
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}
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fn can_continue(&self) -> bool {
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match self {
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Step::Welcome => true,
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Step::Radio { selection } => *selection == Some(Language::Rust),
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Step::Toggler { can_continue } => *can_continue,
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Step::Slider { .. } => true,
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Step::Text { .. } => true,
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Step::Image { .. } => true,
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Step::RowsAndColumns { .. } => true,
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Step::Scrollable => true,
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Step::TextInput { value, .. } => !value.is_empty(),
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Step::Debugger => true,
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Step::End => false,
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}
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}
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fn view(&mut self, debug: bool) -> Element<StepMessage> {
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match self {
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Step::Welcome => Self::welcome(),
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Step::Radio { selection } => Self::radio(*selection),
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Step::Toggler { can_continue } => Self::toggler(*can_continue),
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Step::Slider { state, value } => Self::slider(state, *value),
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Step::Text {
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size_slider,
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size,
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color_sliders,
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color,
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} => Self::text(size_slider, *size, color_sliders, *color),
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Step::Image { width, slider } => Self::image(*width, slider),
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Step::RowsAndColumns {
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layout,
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spacing_slider,
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spacing,
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} => Self::rows_and_columns(*layout, spacing_slider, *spacing),
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Step::Scrollable => Self::scrollable(),
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Step::TextInput {
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value,
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is_secure,
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state,
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} => Self::text_input(value, *is_secure, state),
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Step::Debugger => Self::debugger(debug),
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Step::End => Self::end(),
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}
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.into()
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}
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fn container(title: &str) -> Column<'a, StepMessage> {
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Column::new().spacing(20).push(Text::new(title).size(50))
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}
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fn welcome() -> Column<'a, StepMessage> {
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Self::container("Welcome!")
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.push(Text::new(
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"This is a simple tour meant to showcase a bunch of widgets \
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that can be easily implemented on top of Iced.",
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))
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.push(Text::new(
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"Iced is a cross-platform GUI library for Rust focused on \
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simplicity and type-safety. It is heavily inspired by Elm.",
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))
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.push(Text::new(
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"It was originally born as part of Coffee, an opinionated \
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2D game engine for Rust.",
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))
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.push(Text::new(
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"On native platforms, Iced provides by default a renderer \
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built on top of wgpu, a graphics library supporting Vulkan, \
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Metal, DX11, and DX12.",
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))
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.push(Text::new(
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"Additionally, this tour can also run on WebAssembly thanks \
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to dodrio, an experimental VDOM library for Rust.",
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))
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.push(Text::new(
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"You will need to interact with the UI in order to reach the \
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end!",
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))
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}
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fn slider(
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state: &'a mut slider::State,
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value: u8,
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) -> Column<'a, StepMessage> {
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Self::container("Slider")
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.push(Text::new(
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"A slider allows you to smoothly select a value from a range \
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of values.",
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))
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.push(Text::new(
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"The following slider lets you choose an integer from \
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0 to 100:",
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))
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.push(Slider::new(
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state,
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0..=100,
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value,
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StepMessage::SliderChanged,
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))
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.push(
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Text::new(&value.to_string())
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.width(Length::Fill)
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.horizontal_alignment(HorizontalAlignment::Center),
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)
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}
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fn rows_and_columns(
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layout: Layout,
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spacing_slider: &'a mut slider::State,
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spacing: u16,
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) -> Column<'a, StepMessage> {
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let row_radio = Radio::new(
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Layout::Row,
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"Row",
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Some(layout),
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StepMessage::LayoutChanged,
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);
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let column_radio = Radio::new(
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Layout::Column,
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"Column",
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Some(layout),
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StepMessage::LayoutChanged,
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);
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let layout_section: Element<_> = match layout {
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Layout::Row => Row::new()
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.spacing(spacing)
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.push(row_radio)
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.push(column_radio)
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.into(),
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Layout::Column => Column::new()
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.spacing(spacing)
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.push(row_radio)
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.push(column_radio)
|
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.into(),
|
||||
};
|
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|
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let spacing_section = Column::new()
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.spacing(10)
|
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.push(Slider::new(
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spacing_slider,
|
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0..=80,
|
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spacing,
|
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StepMessage::SpacingChanged,
|
||||
))
|
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.push(
|
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Text::new(&format!("{} px", spacing))
|
||||
.width(Length::Fill)
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
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);
|
||||
|
||||
Self::container("Rows and columns")
|
||||
.spacing(spacing)
|
||||
.push(Text::new(
|
||||
"Iced uses a layout model based on flexbox to position UI \
|
||||
elements.",
|
||||
))
|
||||
.push(Text::new(
|
||||
"Rows and columns can be used to distribute content \
|
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horizontally or vertically, respectively.",
|
||||
))
|
||||
.push(layout_section)
|
||||
.push(Text::new(
|
||||
"You can also easily change the spacing between elements:",
|
||||
))
|
||||
.push(spacing_section)
|
||||
}
|
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|
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fn text(
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||||
size_slider: &'a mut slider::State,
|
||||
size: u16,
|
||||
color_sliders: &'a mut [slider::State; 3],
|
||||
color: Color,
|
||||
) -> Column<'a, StepMessage> {
|
||||
let size_section = Column::new()
|
||||
.padding(20)
|
||||
.spacing(20)
|
||||
.push(Text::new("You can change its size:"))
|
||||
.push(
|
||||
Text::new(&format!("This text is {} pixels", size)).size(size),
|
||||
)
|
||||
.push(Slider::new(
|
||||
size_slider,
|
||||
10..=70,
|
||||
size,
|
||||
StepMessage::TextSizeChanged,
|
||||
));
|
||||
|
||||
let [red, green, blue] = color_sliders;
|
||||
|
||||
let color_sliders = Row::new()
|
||||
.spacing(10)
|
||||
.push(color_slider(red, color.r, move |r| Color { r, ..color }))
|
||||
.push(color_slider(green, color.g, move |g| Color { g, ..color }))
|
||||
.push(color_slider(blue, color.b, move |b| Color { b, ..color }));
|
||||
|
||||
let color_section = Column::new()
|
||||
.padding(20)
|
||||
.spacing(20)
|
||||
.push(Text::new("And its color:"))
|
||||
.push(Text::new(&format!("{:?}", color)).color(color))
|
||||
.push(color_sliders);
|
||||
|
||||
Self::container("Text")
|
||||
.push(Text::new(
|
||||
"Text is probably the most essential widget for your UI. \
|
||||
It will try to adapt to the dimensions of its container.",
|
||||
))
|
||||
.push(size_section)
|
||||
.push(color_section)
|
||||
}
|
||||
|
||||
fn radio(selection: Option<Language>) -> Column<'a, StepMessage> {
|
||||
let question = Column::new()
|
||||
.padding(20)
|
||||
.spacing(10)
|
||||
.push(Text::new("Iced is written in...").size(24))
|
||||
.push(Language::all().iter().cloned().fold(
|
||||
Column::new().padding(10).spacing(20),
|
||||
|choices, language| {
|
||||
choices.push(Radio::new(
|
||||
language,
|
||||
language,
|
||||
selection,
|
||||
StepMessage::LanguageSelected,
|
||||
))
|
||||
},
|
||||
));
|
||||
|
||||
Self::container("Radio button")
|
||||
.push(Text::new(
|
||||
"A radio button is normally used to represent a choice... \
|
||||
Surprise test!",
|
||||
))
|
||||
.push(question)
|
||||
.push(Text::new(
|
||||
"Iced works very well with iterators! The list above is \
|
||||
basically created by folding a column over the different \
|
||||
choices, creating a radio button for each one of them!",
|
||||
))
|
||||
}
|
||||
|
||||
fn toggler(can_continue: bool) -> Column<'a, StepMessage> {
|
||||
Self::container("Toggler")
|
||||
.push(Text::new(
|
||||
"A toggler is mostly used to enable or disable something.",
|
||||
))
|
||||
.push(
|
||||
Container::new(Toggler::new(
|
||||
can_continue,
|
||||
String::from("Toggle me to continue..."),
|
||||
StepMessage::TogglerChanged,
|
||||
))
|
||||
.padding([0, 40]),
|
||||
)
|
||||
}
|
||||
|
||||
fn image(
|
||||
width: u16,
|
||||
slider: &'a mut slider::State,
|
||||
) -> Column<'a, StepMessage> {
|
||||
Self::container("Image")
|
||||
.push(Text::new("An image that tries to keep its aspect ratio."))
|
||||
.push(ferris(width))
|
||||
.push(Slider::new(
|
||||
slider,
|
||||
100..=500,
|
||||
width,
|
||||
StepMessage::ImageWidthChanged,
|
||||
))
|
||||
.push(
|
||||
Text::new(&format!("Width: {} px", width.to_string()))
|
||||
.width(Length::Fill)
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
}
|
||||
|
||||
fn scrollable() -> Column<'a, StepMessage> {
|
||||
Self::container("Scrollable")
|
||||
.push(Text::new(
|
||||
"Iced supports scrollable content. Try it out! Find the \
|
||||
button further below.",
|
||||
))
|
||||
.push(
|
||||
Text::new(
|
||||
"Tip: You can use the scrollbar to scroll down faster!",
|
||||
)
|
||||
.size(16),
|
||||
)
|
||||
.push(Column::new().height(Length::Units(4096)))
|
||||
.push(
|
||||
Text::new("You are halfway there!")
|
||||
.width(Length::Fill)
|
||||
.size(30)
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
.push(Column::new().height(Length::Units(4096)))
|
||||
.push(ferris(300))
|
||||
.push(
|
||||
Text::new("You made it!")
|
||||
.width(Length::Fill)
|
||||
.size(50)
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
}
|
||||
|
||||
fn text_input(
|
||||
value: &str,
|
||||
is_secure: bool,
|
||||
state: &'a mut text_input::State,
|
||||
) -> Column<'a, StepMessage> {
|
||||
let text_input = TextInput::new(
|
||||
state,
|
||||
"Type something to continue...",
|
||||
value,
|
||||
StepMessage::InputChanged,
|
||||
)
|
||||
.padding(10)
|
||||
.size(30);
|
||||
Self::container("Text input")
|
||||
.push(Text::new(
|
||||
"Use a text input to ask for different kinds of information.",
|
||||
))
|
||||
.push(if is_secure {
|
||||
text_input.password()
|
||||
} else {
|
||||
text_input
|
||||
})
|
||||
.push(Checkbox::new(
|
||||
is_secure,
|
||||
"Enable password mode",
|
||||
StepMessage::ToggleSecureInput,
|
||||
))
|
||||
.push(Text::new(
|
||||
"A text input produces a message every time it changes. It is \
|
||||
very easy to keep track of its contents:",
|
||||
))
|
||||
.push(
|
||||
Text::new(if value.is_empty() {
|
||||
"You have not typed anything yet..."
|
||||
} else {
|
||||
value
|
||||
})
|
||||
.width(Length::Fill)
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
}
|
||||
|
||||
fn debugger(debug: bool) -> Column<'a, StepMessage> {
|
||||
Self::container("Debugger")
|
||||
.push(Text::new(
|
||||
"You can ask Iced to visually explain the layouting of the \
|
||||
different elements comprising your UI!",
|
||||
))
|
||||
.push(Text::new(
|
||||
"Give it a shot! Check the following checkbox to be able to \
|
||||
see element boundaries.",
|
||||
))
|
||||
.push(if cfg!(target_arch = "wasm32") {
|
||||
Element::new(
|
||||
Text::new("Not available on web yet!")
|
||||
.color([0.7, 0.7, 0.7])
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
} else {
|
||||
Element::new(Checkbox::new(
|
||||
debug,
|
||||
"Explain layout",
|
||||
StepMessage::DebugToggled,
|
||||
))
|
||||
})
|
||||
.push(Text::new("Feel free to go back and take a look."))
|
||||
}
|
||||
|
||||
fn end() -> Column<'a, StepMessage> {
|
||||
Self::container("You reached the end!")
|
||||
.push(Text::new(
|
||||
"This tour will be updated as more features are added.",
|
||||
))
|
||||
.push(Text::new("Make sure to keep an eye on it!"))
|
||||
}
|
||||
}
|
||||
|
||||
fn ferris<'a>(_width: u16) -> Container<'a, StepMessage> {
|
||||
Container::new(
|
||||
// This should go away once we unify resource loading on native
|
||||
// platforms
|
||||
Text::new(
|
||||
"sorry ferris, you can't come out in glow.",
|
||||
)
|
||||
)
|
||||
.width(Length::Fill)
|
||||
.center_x()
|
||||
}
|
||||
|
||||
fn button<'a, Message: Clone>(
|
||||
state: &'a mut button::State,
|
||||
label: &str,
|
||||
) -> Button<'a, Message> {
|
||||
Button::new(
|
||||
state,
|
||||
Text::new(label).horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
.padding(12)
|
||||
.min_width(100)
|
||||
}
|
||||
|
||||
fn color_slider(
|
||||
state: &mut slider::State,
|
||||
component: f32,
|
||||
update: impl Fn(f32) -> Color + 'static,
|
||||
) -> Slider<f64, StepMessage> {
|
||||
Slider::new(state, 0.0..=1.0, f64::from(component), move |c| {
|
||||
StepMessage::TextColorChanged(update(c as f32))
|
||||
})
|
||||
.step(0.01)
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum Language {
|
||||
Rust,
|
||||
Elm,
|
||||
Ruby,
|
||||
Haskell,
|
||||
C,
|
||||
Other,
|
||||
}
|
||||
|
||||
impl Language {
|
||||
fn all() -> [Language; 6] {
|
||||
[
|
||||
Language::C,
|
||||
Language::Elm,
|
||||
Language::Ruby,
|
||||
Language::Haskell,
|
||||
Language::Rust,
|
||||
Language::Other,
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Language> for String {
|
||||
fn from(language: Language) -> String {
|
||||
String::from(match language {
|
||||
Language::Rust => "Rust",
|
||||
Language::Elm => "Elm",
|
||||
Language::Ruby => "Ruby",
|
||||
Language::Haskell => "Haskell",
|
||||
Language::C => "C",
|
||||
Language::Other => "Other",
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum Layout {
|
||||
Row,
|
||||
Column,
|
||||
}
|
||||
|
||||
mod style {
|
||||
use iced::{button, Background, Color, Vector};
|
||||
|
||||
pub enum Button {
|
||||
Primary,
|
||||
Secondary,
|
||||
}
|
||||
|
||||
impl button::StyleSheet for Button {
|
||||
fn active(&self) -> button::Style {
|
||||
button::Style {
|
||||
background: Some(Background::Color(match self {
|
||||
Button::Primary => Color::from_rgb(0.11, 0.42, 0.87),
|
||||
Button::Secondary => Color::from_rgb(0.5, 0.5, 0.5),
|
||||
})),
|
||||
border_radius: 12.0,
|
||||
shadow_offset: Vector::new(1.0, 1.0),
|
||||
text_color: Color::from_rgb8(0xEE, 0xEE, 0xEE),
|
||||
..button::Style::default()
|
||||
}
|
||||
}
|
||||
|
||||
fn hovered(&self) -> button::Style {
|
||||
button::Style {
|
||||
text_color: Color::WHITE,
|
||||
shadow_offset: Vector::new(1.0, 2.0),
|
||||
..self.active()
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue