termfoto 0.5.0

终端图片浏览器——快速、轻量、Vim 式操作
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pub mod browser;
pub mod preview;
pub mod search;

use ratatui::{
    buffer::Buffer,
    layout::Rect,
    style::{Color, Style},
    text::Span,
    Frame,
};
use crate::app::{App, AppState, LOGO_HEIGHT};
use crate::ui::browser::BrowserView;
use crate::ui::preview::PreviewView;

const LOGO_LINES: [&str; LOGO_HEIGHT as usize] = [
    "████████╗███████╗██████╗ ███╗   ███╗███████╗ ██████╗ ████████╗ ██████╗",
    "╚══██╔══╝██╔════╝██╔══██╗████╗ ████║██╔════╝██╔═══██╗╚══██╔══╝██╔═══██╗",
    "   ██║   █████╗  ██████╔╝██╔████╔██║█████╗  ██║   ██║   ██║   ██║   ██║",
    "   ██║   ██╔══╝  ██╔══██╗██║╚██╔╝██║██╔══╝  ██║   ██║   ██║   ██║   ██║",
    "   ██║   ███████╗██║  ██║██║ ╚═╝ ██║██║     ╚██████╔╝   ██║   ╚██████╔╝",
    "   ╚═╝   ╚══════╝╚═╝  ╚═╝╚═╝     ╚═╝╚═╝      ╚═════╝    ╚═╝    ╚═════╝",
];

const LOGO_COLORS: [Color; LOGO_HEIGHT as usize] = [
    Color::Rgb(255, 0, 0),
    Color::Rgb(255, 127, 0),
    Color::Rgb(255, 255, 0),
    Color::Rgb(0, 255, 0),
    Color::Rgb(0, 127, 255),
    Color::Rgb(127, 0, 255),
];

pub fn render_logo(area: Rect, buf: &mut Buffer) {
    let max_w = LOGO_LINES.iter().map(|l| l.chars().count()).max().unwrap_or(0);
    let logo_w = max_w.min(area.width as usize);
    let offset_x = area.x + area.width.saturating_sub(logo_w as u16);

    for (i, line) in LOGO_LINES.iter().enumerate() {
        let trimmed: String = line.chars().take(logo_w).collect();
        let style = Style::default().fg(LOGO_COLORS[i]);
        buf.set_span(offset_x, area.y + i as u16, &Span::styled(trimmed, style), logo_w as u16);
    }
}

pub fn draw(
    frame: &mut Frame,
    app: &mut App,
    cell_w: u16,
    cell_h: u16,
) {
    let area = frame.area();
    match app.state {
        AppState::Browser => {
            frame.render_widget(BrowserView { app, cell_w, cell_h }, area);
        }
        AppState::Fullscreen => {
            frame.render_widget(PreviewView { app }, area);
        }
    }
}