s10_conclusion.rs

use crate::color::get_style_alpha;
use crate::component::code::Code;
use crate::egui::text::LayoutJob;
use crate::egui::{Ui, Vec2};
use crate::slide::Slide;
use crate::window::WindowPosition;
use eframe::egui::style::Margin;
use eframe::egui::{Color32, FontFamily, FontId, Frame, Sense, Shape, Stroke, TextFormat};
use eframe::epaint::TextShape;

#[derive(Default)]
pub struct Conclusion {
    fade_in: Option<f64>,
}

impl Slide for Conclusion {
    fn show(&mut self, ui: &mut Ui) {
        self.fade_in.get_or_insert(ui.ctx().input().time);

        /*
        ui.style_mut().debug.debug_on_hover = true;
        ui.style_mut().debug.show_expand_height = true;
        ui.style_mut().debug.show_resize = true;
        ui.style_mut().debug.show_expand_width = true;
         */

        Frame::none().margin(Margin::same(20.0)).show(ui, |ui| {
            ui.heading("Conclusion");
            ui.add_space(8.0);

            let font_size = 30.0;
            let color = ui.style().visuals.widgets.noninteractive.fg_stroke.color;
            let mut job = LayoutJob::default();
            job.append(
                "In the spirit of generative art, ",
                0.0,
                TextFormat {
                    font_id: FontId::new(font_size, FontFamily::Proportional),
                    color,
                    ..Default::default()
                },
            );
            job.append(
                "this entire cartoon was rendered by code",
                0.0,
                TextFormat {
                    font_id: FontId::new(font_size, FontFamily::Monospace),
                    color,
                    underline: Stroke::new(1.5, color),
                    ..Default::default()
                },
            );
            job.append(
                "!",
                0.0,
                TextFormat {
                    font_id: FontId::new(font_size, FontFamily::Proportional),
                    color,
                    ..Default::default()
                },
            );
            let galley = ui.fonts().layout_job(job);
            let (rect, _) = ui.allocate_exact_size(galley.size(), Sense::hover());
            ui.painter()
                .add(Shape::Text(TextShape::new(rect.left_top(), galley)));

            let elapsed = (ui.ctx().input().time - self.fade_in.unwrap()) as f32;
            ui.ctx().request_repaint();

            Code {
                name: "slides",
                position: WindowPosition::FromCenter(Vec2::new(0.0, ui.available_height() * 0.08)),
                size: Vec2::new(ui.available_width() * 0.95, ui.available_height() * 0.85),
                scroll: Some((elapsed * 90.0 + 350.0).min(1065.0)),
                background: Color32::TRANSPARENT,
                alpha: get_style_alpha(ui.style()),
                code: String::from(include_str!("../cartoon.rs")),
                ..Code::default()
            }
            .show(ui.ctx());
        });
    }
}