Phase 6: Plattformprüfungen und absolute RGB-Farben, Change 05 archivieren

crates/tb-ui/examples/spike.rs

@@ -1,15 +1,12 @@
 //! Phase-0-Spike: 80×25-Bildschirmpuffer, 16-Farben-Palette, Unicode,
 //! Tastatur- und Mausereignisse.
 //!
-//! Start: `cargo run -p tb-ui --example spike` — Beenden mit Esc.
+//! Start: `cargo run -p tb-ui --features terminal --example spike -- --log events.txt` — Beenden mit Esc.
 //! Getippte Zeichen erscheinen im Eingabebereich; Sondertasten und
 //! Mausereignisse werden in der Statuszeile angezeigt.
 
-use crossterm::event::{
-    self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEventKind,
-};
-use crossterm::execute;
-use std::io::stdout;
+use crossterm::event::{self, Event, KeyCode, KeyEventKind};
+use std::io::{stdout, Write};
 use std::time::Duration;
 use tb_ui::screen::{ScreenWidget, TextScreen};
 
@@ -57,8 +54,24 @@ fn status(s: &mut TextScreen, text: &str) {
 }
 
 fn main() -> anyhow::Result<()> {
-    let mut terminal = ratatui::init();
-    execute!(stdout(), EnableMouseCapture)?;
+    let args: Vec<_> = std::env::args_os().skip(1).collect();
+    anyhow::ensure!(
+        args.is_empty() || (args.len() == 2 && args[0] == "--log"),
+        "Aufruf: spike [--log neue-datei]"
+    );
+    let mut log = if args.len() == 2 {
+        Some(
+            std::fs::OpenOptions::new()
+                .write(true)
+                .create_new(true)
+                .open(&args[1])?,
+        )
+    } else {
+        None
+    };
+    let _guard = tb_ui::terminal::TerminalGuard::enter(stdout())?;
+    let mut terminal = ratatui::Terminal::new(ratatui::backend::CrosstermBackend::new(stdout()))?;
+    let mut sequence = 0u64;
 
     let (tw, th) = crossterm::terminal::size()?;
     let mut screen = TextScreen::with_size(tw as usize, th as usize);
@@ -70,7 +83,12 @@ fn main() -> anyhow::Result<()> {
         if !event::poll(Duration::from_millis(100))? {
             continue;
         }
-        match event::read()? {
+        let received = event::read()?;
+        sequence += 1;
+        if let Some(log) = &mut log {
+            writeln!(log, "{sequence}: {received:?}")?;
+        }
+        match received {
             Event::Key(k) if k.kind != KeyEventKind::Release => match k.code {
                 KeyCode::Esc => break,
                 KeyCode::Char(c) => {
@@ -105,7 +123,5 @@ fn main() -> anyhow::Result<()> {
         }
     }
 
-    execute!(stdout(), DisableMouseCapture)?;
-    ratatui::restore();
     Ok(())
 }