Show Coffee's UI tour in `ggez` example
This commit is contained in:
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8f6ea4bdc9
commit
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@ -1,8 +1,10 @@
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mod renderer;
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mod tour;
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mod widget;
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use renderer::Renderer;
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use widget::{button, Button, Checkbox, Column, Text};
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use tour::Tour;
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use widget::Column;
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use ggez;
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use ggez::event;
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@ -10,7 +12,13 @@ use ggez::graphics;
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use ggez::input::mouse;
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pub fn main() -> ggez::GameResult {
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let cb = ggez::ContextBuilder::new("iced", "ggez");
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let cb = ggez::ContextBuilder::new("iced", "ggez").window_mode(
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ggez::conf::WindowMode {
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width: 1280.0,
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height: 1024.0,
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..ggez::conf::WindowMode::default()
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},
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);
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let (ctx, event_loop) = &mut cb.build()?;
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let state = &mut Game::new(ctx)?;
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event::run(ctx, event_loop, state)
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@ -20,16 +28,18 @@ struct Game {
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spritesheet: graphics::Image,
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runtime: iced::Runtime,
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button: button::State,
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tour: Tour,
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}
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impl Game {
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fn new(context: &mut ggez::Context) -> ggez::GameResult<Game> {
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graphics::set_default_filter(context, graphics::FilterMode::Nearest);
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Ok(Game {
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spritesheet: graphics::Image::new(context, "/ui.png").unwrap(),
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runtime: iced::Runtime::new(),
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button: button::State::new(),
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tour: Tour::new(),
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})
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}
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}
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@ -39,6 +49,36 @@ impl event::EventHandler for Game {
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Ok(())
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}
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fn mouse_button_down_event(
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&mut self,
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_context: &mut ggez::Context,
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button: mouse::MouseButton,
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_x: f32,
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_y: f32,
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) {
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self.runtime.on_event(iced::Event::Mouse(
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iced::input::mouse::Event::Input {
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state: iced::input::ButtonState::Pressed,
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button: iced::input::mouse::Button::Left,
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},
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));
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}
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fn mouse_button_up_event(
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&mut self,
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_context: &mut ggez::Context,
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button: mouse::MouseButton,
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_x: f32,
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_y: f32,
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) {
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self.runtime.on_event(iced::Event::Mouse(
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iced::input::mouse::Event::Input {
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state: iced::input::ButtonState::Released,
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button: iced::input::mouse::Button::Left,
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},
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));
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}
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fn mouse_motion_event(
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&mut self,
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_context: &mut ggez::Context,
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@ -52,34 +92,40 @@ impl event::EventHandler for Game {
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));
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}
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fn resize_event(
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&mut self,
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context: &mut ggez::Context,
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width: f32,
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height: f32,
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) {
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graphics::set_screen_coordinates(
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context,
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graphics::Rect {
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x: 0.0,
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y: 0.0,
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w: width,
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h: height,
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},
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)
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.expect("Set screen coordinates");
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}
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fn draw(&mut self, context: &mut ggez::Context) -> ggez::GameResult {
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graphics::clear(context, [0.1, 0.2, 0.3, 1.0].into());
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graphics::clear(context, [0.3, 0.3, 0.6, 1.0].into());
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self.tour.draw(context).expect("Draw tour");
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let screen = graphics::screen_coordinates(context);
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let cursor = {
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let hello = Text::new("Hello, iced!");
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let checkbox =
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Checkbox::new(true, "Check me!", Message::CheckboxToggled);
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let button = Button::new(&mut self.button, "Press me!")
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.width(200)
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.align_self(iced::Align::End);
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let widgets = Column::new()
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.max_width(600)
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.spacing(20)
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.push(hello)
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.push(checkbox)
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.push(button);
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let (messages, cursor) = {
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let layout = self.tour.layout();
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let content = Column::new()
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.width(screen.w as u32)
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.height(screen.h as u32)
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.align_items(iced::Align::Center)
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.justify_content(iced::Justify::Center)
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.push(widgets);
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.push(layout);
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let renderer =
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&mut Renderer::new(context, self.spritesheet.clone());
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@ -91,9 +137,13 @@ impl event::EventHandler for Game {
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renderer.flush();
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cursor
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(messages, cursor)
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};
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for message in messages {
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self.tour.react(message);
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}
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mouse::set_cursor_type(context, into_cursor_type(cursor));
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graphics::present(context)?;
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@ -101,11 +151,6 @@ impl event::EventHandler for Game {
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}
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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enum Message {
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CheckboxToggled(bool),
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}
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fn into_cursor_type(cursor: iced::MouseCursor) -> mouse::MouseCursor {
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match cursor {
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iced::MouseCursor::OutOfBounds => mouse::MouseCursor::Default,
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@ -0,0 +1,545 @@
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use super::widget::{
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button, slider, Button, Checkbox, Column, Element, Radio, Row, Slider, Text,
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};
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use ggez::graphics::{Color, BLACK};
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use iced::{text::HorizontalAlignment, Align};
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pub struct Tour {
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steps: Steps,
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back_button: button::State,
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next_button: button::State,
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}
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impl Tour {
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pub fn new() -> Tour {
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Tour {
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steps: Steps::new(),
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back_button: button::State::new(),
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next_button: button::State::new(),
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}
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}
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pub fn draw(&mut self, context: &mut ggez::Context) -> ggez::GameResult {
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Ok(())
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}
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pub fn react(&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);
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}
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}
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}
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pub fn layout(&mut self) -> Element<Message> {
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let Tour {
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steps,
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back_button,
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next_button,
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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::new(back_button, "Back")
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.on_press(Message::BackPressed)
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.class(button::Class::Secondary),
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);
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}
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controls = controls.push(Column::new());
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if steps.can_continue() {
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controls = controls.push(
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Button::new(next_button, "Next").on_press(Message::NextPressed),
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);
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}
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Column::new()
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.max_width(500)
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.spacing(20)
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.push(steps.layout().map(Message::StepMessage))
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.push(controls)
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.into()
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}
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}
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#[derive(Debug, Clone, Copy)]
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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::Buttons {
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primary: button::State::new(),
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secondary: button::State::new(),
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positive: button::State::new(),
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},
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Step::Checkbox { is_checked: false },
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Step::Radio { selection: None },
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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::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: BLACK,
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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::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) {
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self.steps[self.current].update(msg);
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}
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fn layout(&mut self) -> Element<StepMessage> {
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self.steps[self.current].layout()
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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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}
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enum Step {
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Welcome,
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Buttons {
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primary: button::State,
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secondary: button::State,
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positive: button::State,
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},
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Checkbox {
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is_checked: bool,
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},
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Radio {
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selection: Option<Language>,
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},
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Slider {
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state: slider::State,
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value: 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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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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End,
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}
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#[derive(Debug, Clone, Copy)]
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pub enum StepMessage {
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CheckboxToggled(bool),
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LanguageSelected(Language),
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SliderChanged(f32),
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TextSizeChanged(f32),
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TextColorChanged(Color),
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LayoutChanged(Layout),
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SpacingChanged(f32),
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}
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impl<'a> Step {
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fn update(&mut self, msg: StepMessage) {
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match msg {
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StepMessage::CheckboxToggled(value) => {
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if let Step::Checkbox { is_checked } = self {
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*is_checked = 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.round() as u16;
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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.round() as u16;
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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.round() as u16;
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}
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}
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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::Buttons { .. } => true,
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Step::Checkbox { is_checked } => *is_checked,
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Step::Radio { selection } => *selection == Some(Language::Rust),
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Step::Slider { .. } => true,
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Step::Text { .. } => true,
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Step::RowsAndColumns { .. } => true,
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Step::End => false,
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}
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}
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fn layout(&mut self) -> Element<StepMessage> {
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match self {
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Step::Welcome => Self::welcome().into(),
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Step::Buttons {
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primary,
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secondary,
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positive,
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} => Self::buttons(primary, secondary, positive).into(),
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Step::Checkbox { is_checked } => Self::checkbox(*is_checked).into(),
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Step::Radio { selection } => Self::radio(*selection).into(),
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Step::Slider { state, value } => Self::slider(state, *value).into(),
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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).into(),
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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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} => {
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Self::rows_and_columns(*layout, spacing_slider, *spacing).into()
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}
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Step::End => Self::end().into(),
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}
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}
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fn container(title: &str) -> Column<'a, StepMessage> {
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Column::new()
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.spacing(20)
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.align_items(Align::Stretch)
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.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 tour that introduces some of the features and \
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concepts related with UI development in Iced.",
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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 buttons(
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primary: &'a mut button::State,
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secondary: &'a mut button::State,
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positive: &'a mut button::State,
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) -> Column<'a, StepMessage> {
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Self::container("Button")
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.push(Text::new("A button can fire actions when clicked."))
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.push(Text::new(
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"As of now, there are 3 different types of buttons: \
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primary, secondary, and positive.",
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))
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.push(Button::new(primary, "Primary"))
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.push(
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Button::new(secondary, "Secondary")
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.class(button::Class::Secondary),
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)
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.push(
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Button::new(positive, "Positive")
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.class(button::Class::Positive),
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)
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.push(Text::new(
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"Additional types will be added in the near future! Choose \
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each type smartly depending on the situation.",
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))
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}
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fn checkbox(is_checked: bool) -> Column<'a, StepMessage> {
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Self::container("Checkbox")
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.push(Text::new(
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"A box that can be checked. Useful to build toggle controls.",
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))
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.push(Checkbox::new(
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is_checked,
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"Show \"Next\" button",
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StepMessage::CheckboxToggled,
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))
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.push(Text::new(
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"A checkbox always has a label, and both the checkbox and its \
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label can be clicked to toggle it.",
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))
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}
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fn radio(selection: Option<Language>) -> Column<'a, StepMessage> {
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let question = Column::new()
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.padding(20)
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.spacing(10)
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.push(Text::new("Iced is written in..."))
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.push(Language::all().iter().cloned().fold(
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Column::new().padding(10).spacing(20),
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|choices, language| {
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choices.push(Radio::new(
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language,
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language.into(),
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selection,
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StepMessage::LanguageSelected,
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))
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},
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));
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Self::container("Radio button")
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.push(Text::new(
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"A radio button is normally used to represent a choice. Like \
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a checkbox, it always has a label.",
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))
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.push(question)
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}
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fn slider(
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state: &'a mut slider::State,
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value: u16,
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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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))
|
||||
.push(Slider::new(
|
||||
state,
|
||||
0.0..=100.0,
|
||||
value as f32,
|
||||
StepMessage::SliderChanged,
|
||||
))
|
||||
.push(
|
||||
Text::new(&value.to_string())
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
)
|
||||
}
|
||||
|
||||
fn text(
|
||||
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 {} points", size)).size(size),
|
||||
)
|
||||
.push(Slider::new(
|
||||
size_slider,
|
||||
10.0..=50.0,
|
||||
size as f32,
|
||||
StepMessage::TextSizeChanged,
|
||||
));
|
||||
|
||||
let [red, green, blue] = color_sliders;
|
||||
let color_section = Column::new()
|
||||
.padding(20)
|
||||
.spacing(20)
|
||||
.push(Text::new("And its color:"))
|
||||
.push(Text::new(&format!("{:?}", color)).color(color))
|
||||
.push(
|
||||
Row::new()
|
||||
.spacing(10)
|
||||
.push(Slider::new(red, 0.0..=1.0, color.r, move |r| {
|
||||
StepMessage::TextColorChanged(Color { r, ..color })
|
||||
}))
|
||||
.push(Slider::new(green, 0.0..=1.0, color.g, move |g| {
|
||||
StepMessage::TextColorChanged(Color { g, ..color })
|
||||
}))
|
||||
.push(Slider::new(blue, 0.0..=1.0, color.b, move |b| {
|
||||
StepMessage::TextColorChanged(Color { b, ..color })
|
||||
})),
|
||||
);
|
||||
|
||||
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 rows_and_columns(
|
||||
layout: Layout,
|
||||
spacing_slider: &'a mut slider::State,
|
||||
spacing: u16,
|
||||
) -> Column<'a, StepMessage> {
|
||||
let row_radio = Radio::new(
|
||||
Layout::Row,
|
||||
"Row",
|
||||
Some(layout),
|
||||
StepMessage::LayoutChanged,
|
||||
);
|
||||
|
||||
let column_radio = Radio::new(
|
||||
Layout::Column,
|
||||
"Column",
|
||||
Some(layout),
|
||||
StepMessage::LayoutChanged,
|
||||
);
|
||||
|
||||
let layout_section: Element<_> = match layout {
|
||||
Layout::Row => Row::new()
|
||||
.spacing(spacing)
|
||||
.push(row_radio)
|
||||
.push(column_radio)
|
||||
.into(),
|
||||
Layout::Column => Column::new()
|
||||
.spacing(spacing)
|
||||
.push(row_radio)
|
||||
.push(column_radio)
|
||||
.into(),
|
||||
};
|
||||
|
||||
let spacing_section = Column::new()
|
||||
.spacing(10)
|
||||
.push(Slider::new(
|
||||
spacing_slider,
|
||||
0.0..=100.0,
|
||||
spacing as f32,
|
||||
StepMessage::SpacingChanged,
|
||||
))
|
||||
.push(
|
||||
Text::new(&format!("{} px", spacing))
|
||||
.horizontal_alignment(HorizontalAlignment::Center),
|
||||
);
|
||||
|
||||
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 \
|
||||
horizontally or vertically, respectively.",
|
||||
))
|
||||
.push(layout_section)
|
||||
.push(Text::new(
|
||||
"You can also easily change the spacing between elements:",
|
||||
))
|
||||
.push(spacing_section)
|
||||
}
|
||||
|
||||
fn end() -> Column<'a, StepMessage> {
|
||||
Self::container("You reached the end!")
|
||||
.push(Text::new(
|
||||
"This tour will be extended as more features are added.",
|
||||
))
|
||||
.push(Text::new("Make sure to keep an eye on it!"))
|
||||
}
|
||||
}
|
||||
|
||||
#[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 &str {
|
||||
fn from(language: Language) -> &'static str {
|
||||
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,
|
||||
}
|
Loading…
Reference in New Issue