rename libraries

fix

remove

user_apps/gif/src/main.rs

@@ -0,0 +1,103 @@
+#![no_std]
+#![no_main]
+
+extern crate alloc;
+use alloc::{format, vec, vec::Vec};
+use core::panic::PanicInfo;
+use embedded_graphics::{
+    image::ImageDrawable,
+    mono_font::{ascii::FONT_6X10, MonoTextStyle},
+    pixelcolor::Rgb565,
+    prelude::{Point, RgbColor},
+    transform::Transform,
+};
+use selection_ui::{draw_text_center, SelectionUi, SelectionUiError};
+use tinygif::Gif;
+use userlib::{
+    display::{Display, SCREEN_HEIGHT, SCREEN_WIDTH},
+    fs::{file_len, list_dir, read_file, Entries},
+    get_key, get_ms,
+    keyboard::{KeyCode, KeyState},
+    println, sleep,
+};
+
+#[panic_handler]
+fn panic(info: &PanicInfo) -> ! {
+    println!("user panic: {} @ {:?}", info.message(), info.location(),);
+    loop {}
+}
+
+#[unsafe(no_mangle)]
+pub extern "Rust" fn _start() {
+    main()
+}
+
+pub fn main() {
+    println!("Starting Gif app");
+    let mut display = Display::take().unwrap();
+
+    let mut entries = Entries::new();
+    list_dir("/gifs", &mut entries);
+
+    let mut files = entries.entries();
+    files.retain(|e| e.extension().unwrap_or("") == "gif");
+    let mut gifs = files.iter().map(|e| e.full_name()).collect::<Vec<&str>>();
+    gifs.sort();
+
+    let mut selection_ui = SelectionUi::new(&mut gifs);
+    let selection = match selection_ui.run_selection_ui(&mut display) {
+        Ok(maybe_sel) => maybe_sel,
+        Err(e) => match e {
+            SelectionUiError::SelectionListEmpty => {
+                draw_text_center(
+                    &mut display,
+                    "No Gifs were found in /gifs",
+                    MonoTextStyle::new(&FONT_6X10, Rgb565::RED),
+                )
+                .expect("Display Error");
+                None
+            }
+            SelectionUiError::DisplayError(_) => panic!("Display Error"),
+        },
+    };
+
+    assert!(selection.is_some());
+
+    let file_name = format!("/gifs/{}", gifs[selection.unwrap()]);
+    let size = file_len(&file_name);
+    let mut buf = vec![0_u8; size];
+    let read = read_file(&file_name, 0, &mut buf);
+    println!("read: {}, file size: {}", read, size);
+    assert!(read == size);
+
+    let gif = Gif::<Rgb565>::from_slice(&buf).expect("Failed to parse gif");
+
+    let translation = Point::new(
+        (SCREEN_WIDTH as i32 - gif.width() as i32) / 2,
+        (SCREEN_HEIGHT as i32 - gif.height() as i32) / 2,
+    );
+
+    let mut frame_num = 0;
+    loop {
+        for mut frame in gif.frames() {
+            let start = get_ms();
+
+            frame.translate_mut(translation).draw(&mut display).unwrap();
+            frame_num += 1;
+
+            if frame_num % 5 == 0 {
+                let event = get_key();
+                if event.state != KeyState::Idle {
+                    match event.key {
+                        KeyCode::Esc => {
+                            drop(buf);
+                            return;
+                        }
+                        _ => (),
+                    };
+                };
+            }
+            sleep(((frame.delay_centis as u64) * 10).saturating_sub(start));
+        }
+    }
+}