fix selection ui

selection_ui/src/lib.rs

@@ -53,7 +53,6 @@ impl<'a> SelectionUi<'a> {
         loop {
             let key = get_key();
             if key.state == KeyState::Pressed {
-                print!("Got Key press: {:?}", key.key);
                 if let Some(s) = self.update(display, key.key)? {
                     selection = Some(s);
                     break;
@@ -70,16 +69,18 @@ impl<'a> SelectionUi<'a> {
         display: &mut Display,
         key: KeyCode,
     ) -> Result<Option<usize>, SelectionUiError<<Display as DrawTarget>::Error>> {
+        print!("Got Key: {:?}", key);
         match key {
-            KeyCode::JoyDown => {
+            KeyCode::Down => {
                 self.selection = (self.selection + 1).min(self.items.len() - 1);
             }
-            KeyCode::JoyUp => {
+            KeyCode::Up => {
                 self.selection = self.selection.saturating_sub(1);
             }
-            KeyCode::Enter | KeyCode::JoyRight => return Ok(Some(self.selection)),
-            _ => return Ok(Some(self.selection)),
+            KeyCode::Enter | KeyCode::Right => return Ok(Some(self.selection)),
+            _ => return Ok(None),
         };
+        print!("new selection: {:?}", self.selection);
         self.draw(display)?;
         Ok(None)
     }
@@ -95,6 +96,13 @@ impl<'a> SelectionUi<'a> {
             return Err(SelectionUiError::SelectionListEmpty);
         }
 
+        if let Some(bounds) = self.last_bounds {
+            Rectangle::new(bounds.top_left, bounds.size)
+                .into_styled(PrimitiveStyle::with_fill(Rgb565::BLACK))
+                .draw(display)
+                .map_err(|e| SelectionUiError::DisplayError(e))?;
+        }
+
         let mut views: Vec<Text<MonoTextStyle<Rgb565>>> = Vec::new();
 
         for i in self.items {
@@ -109,6 +117,10 @@ impl<'a> SelectionUi<'a> {
             .arrange()
             .align_to(&display_area, horizontal::Center, vertical::Center);
 
+        layout
+            .draw(display)
+            .map_err(|e| SelectionUiError::DisplayError(e))?;
+
         // draw selected box
         if let Some(selected_bounds) = layout.inner().get(self.selection) {
             let selected_bounds = selected_bounds.bounding_box();
@@ -117,12 +129,10 @@ impl<'a> SelectionUi<'a> {
                 .draw(display)
                 .map_err(|e| SelectionUiError::DisplayError(e))?;
 
-            self.last_bounds = Some(layout.bounds());
+            self.last_bounds = Some(selected_bounds);
         }
 
-        layout
-            .draw(display)
-            .map_err(|e| SelectionUiError::DisplayError(e))
+        Ok(())
     }
 }
 

user-apps/gif/src/main.rs

@@ -3,7 +3,7 @@
 
 extern crate alloc;
 use abi::{
-    display::Display,
+    display::{Display, SCREEN_HEIGHT, SCREEN_WIDTH},
     fs::{Entries, file_len, list_dir, read_file},
     get_key, get_ms,
     keyboard::{KeyCode, KeyState},
@@ -70,17 +70,18 @@ pub fn main() {
     assert!(read == size);
 
     let gif = Gif::<Rgb565>::from_slice(&buf).expect("Failed to parse gif");
-    let height = gif.height();
+
+    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(Point::new(0, (320 - height as i32) / 2))
-                .draw(&mut display)
-                .unwrap();
+            frame.translate_mut(translation).draw(&mut display).unwrap();
             frame_num += 1;
 
             if frame_num % 5 == 0 {