conrod_glium 0.62.0

#[macro_use] extern crate conrod_core;
extern crate glium;

extern crate find_folder;
extern crate conrod_glium;
extern crate conrod_winit;

mod support;

use glium::Surface;

const WIDTH: u32 = 720;
const HEIGHT: u32 = 360;

widget_ids! {
    struct Ids { canvas, grid, plot }
}

fn main() {
    // Build the window.
    let mut events_loop = glium::glutin::EventsLoop::new();
    let window = glium::glutin::WindowBuilder::new()
        .with_title("PlotPath Demo")
        .with_dimensions((WIDTH, HEIGHT).into());
    let context = glium::glutin::ContextBuilder::new()
        .with_vsync(true)
        .with_multisampling(4);
    let display = glium::Display::new(window, context, &events_loop).unwrap();
    let display = support::GliumDisplayWinitWrapper(display);

    // Construct our `Ui`.
    let mut ui = conrod_core::UiBuilder::new([WIDTH as f64, HEIGHT as f64]).build();

    // A unique identifier for each widget.
    let ids = Ids::new(ui.widget_id_generator());

    // A type used for converting `conrod_core::render::Primitives` into `Command`s that can be used
    // for drawing to the glium `Surface`.
    let mut renderer = conrod_glium::Renderer::new(&display.0).unwrap();

    // The image map describing each of our widget->image mappings (in our case, none).
    let image_map = conrod_core::image::Map::<glium::texture::Texture2d>::new();

    // Poll events from the window.
    let mut event_loop = support::EventLoop::new();
    'main: loop {
        // Handle all events.
        for event in event_loop.next(&mut events_loop) {

            // Use the `winit` backend feature to convert the winit event to a conrod one.
            if let Some(event) = conrod_winit::convert_event(event.clone(), &display) {
                ui.handle_event(event);
            }

            match event {
                glium::glutin::Event::WindowEvent { event, .. } => match event {
                    // Break from the loop upon `Escape`.
                    glium::glutin::WindowEvent::CloseRequested |
                    glium::glutin::WindowEvent::KeyboardInput {
                        input: glium::glutin::KeyboardInput {
                            virtual_keycode: Some(glium::glutin::VirtualKeyCode::Escape),
                            ..
                        },
                        ..
                    } => break 'main,
                    _ => (),
                },
                _ => (),
            }
        }

        // Instantiate the widgets.
        {
            use conrod_core::{color, widget, Colorable, Positionable, Sizeable, Widget};

            let ui = &mut ui.set_widgets();

            widget::Canvas::new().color(color::DARK_CHARCOAL).set(ids.canvas, ui);

            let min_x = 0.0;
            let max_x = std::f64::consts::PI * 2.0;
            let min_y = -1.0;
            let max_y = 1.0;

            let quarter_lines = widget::grid::Lines::step(0.5_f64).thickness(2.0);
            let sixteenth_lines = widget::grid::Lines::step(0.125_f64).thickness(1.0);
            let lines = &[
                quarter_lines.x(),
                quarter_lines.y(),
                sixteenth_lines.x(),
                sixteenth_lines.y(),
            ];

            widget::Grid::new(min_x, max_x, min_y, max_y, lines.iter().cloned())
                .color(color::rgb(0.1, 0.12, 0.15))
                .wh_of(ids.canvas)
                .middle_of(ids.canvas)
                .set(ids.grid, ui);
            widget::PlotPath::new(min_x, max_x, min_y, max_y, f64::sin)
                .color(color::LIGHT_BLUE)
                .thickness(2.0)
                .wh_of(ids.canvas)
                .middle_of(ids.canvas)
                .set(ids.plot, ui);
        }

        // Render the `Ui` and then display it on the screen.
        if let Some(primitives) = ui.draw_if_changed() {
            renderer.fill(&display.0, primitives, &image_map);
            let mut target = display.0.draw();
            target.clear_color(0.0, 0.0, 0.0, 1.0);
            renderer.draw(&display.0, &mut target, &image_map).unwrap();
            target.finish().unwrap();
        }
    }
}