Sylpheed/crates/sylpheed-formats/examples/leaf_keyframes.rs

//! Dump the keyframes of any nested `.rat` leaf by name.
//!
//!     cargo run -p sylpheed-formats --example leaf_keyframes -- GP_TITLE ptbtn00.rat 2 3 4
use std::path::PathBuf;
use sylpheed_formats::{pak::PakArchive, ui_layout};

fn main() {
    let root = PathBuf::from(std::env::var("SYLPHEED_DISC").expect("SYLPHEED_DISC"));
    let argv: Vec<String> = std::env::args().skip(1).collect();
    let pak = argv[0].clone();
    let rec = argv[1].clone();
    let builds: Vec<usize> = argv[2..].iter().filter_map(|a| a.parse().ok()).collect();
    let ar = PakArchive::open(root.join(format!("dat/{pak}.pak"))).expect("pak");
    for e in builds {
        let Ok(by) = ar.read(&ar.entries()[e]) else {
            continue;
        };
        let Some(b) = ui_layout::parse_build(&by) else {
            continue;
        };
        let Some(&(lo, ls)) = b.records.get(rec.as_str()) else {
            continue;
        };
        let leaf = &by[lo..(lo + ls).min(by.len())];
        println!("=== {pak} entry {e} — {rec} (leaf {ls} bytes) ===");
        if let Some(u) = ui_layout::loop_length_units(leaf) {
            println!("    declared loop: {u} units");
        }
        if let Some(lb) = ui_layout::parse_build(leaf) {
            for el in &lb.elements {
                println!("  {} — {} keyframes", el.name, el.keyframes.len());
                for (i, k) in el.keyframes.iter().enumerate() {
                    println!(
                        "    kf{i:<2} t={:<5} x={:<6} y={:<6} fade={:08X} (alpha {:3})",
                        k.time.map(|t| t.to_string()).unwrap_or_else(|| "-".into()),
                        k.x,
                        k.y,
                        k.fade,
                        k.fade >> 24
                    );
                }
            }
        }
    }
}