Support a list with Schwimmflügel

src/Tools/psxreadmap/src/lib.rs

@@ -7,7 +7,7 @@ use ratatui::{
     layout::{Alignment, Constraint, Direction, Layout, Rect},
     style::{Color, Modifier, Style},
     text::{Line, Span},
-    widgets::{Block, Borders, BorderType, Gauge, Paragraph, Tabs}
+    widgets::{Block, Borders, BorderType, Gauge, List, ListItem, ListState, Paragraph, Tabs}
 };
 
 pub type EventReceiver = std::sync::mpsc::Receiver<Event<crossterm::event::KeyEvent>>;
@@ -51,6 +51,50 @@ impl MenuSelection {
     }
 }
 
+pub struct ListSelection {
+    pub selection: Option<usize>
+}
+
+impl ListSelection {
+    fn change_value(&mut self, max: usize, f: fn(usize)->usize) {
+        if let Some(cur_selection) = self.selection {
+            self.selection = Some(f(cur_selection)%max);
+        }
+    }
+
+    pub fn increment(&mut self, max: usize) {
+        fn add_one(value: usize) -> usize {
+            value + 1
+        }
+        self.change_value(max, add_one)
+    }
+
+    pub fn decrement(&mut self, max: usize) {
+        fn sub_one(value: usize) -> usize {
+            value - 1
+        }
+        self.change_value(max, sub_one)
+    }
+
+    pub fn activate(&mut self) {
+        self.selection = Some(0);
+    }
+
+    pub fn deactivate(&mut self) {
+        self.selection = None;
+    }
+
+    pub fn is_active(&self) -> bool {
+        self.selection.is_some()
+    }
+}
+
+impl Default for ListSelection {
+    fn default() -> Self {
+        Self{selection: None}
+    }
+}
+
 pub struct ConsoleUI {
     rx:                EventReceiver,
     terminal:          Terminal,
@@ -58,14 +102,25 @@ pub struct ConsoleUI {
     main_chunks:       Vec<Rect>,
     stats_chunks:      Vec<Rect>,
     menu_selection:    MenuSelection,
+    content_selection: ListSelection,
 }
 
 impl ConsoleUI {
     pub fn new(rx: EventReceiver, terminal: Terminal) -> ConsoleUI {
-        ConsoleUI{rx, terminal, cur_size: Rect::default(), main_chunks: Vec::default(), stats_chunks: Vec::default(), menu_selection: MenuSelection::Stats}
+        ConsoleUI{rx, terminal, cur_size: Rect::default(), main_chunks: Vec::default(), stats_chunks: Vec::default(), menu_selection: MenuSelection::Stats, content_selection: ListSelection::default()}
+    }
+
+    pub fn update(&mut self, data: &ConsoleUIData) -> Result<UIState, Error> {
+        if data.list.len() > 0 {
+            if !self.content_selection.is_active() {
+                self.content_selection.activate();
+            }
+        }
+
+        else {
+            self.content_selection.deactivate();
         }
 
-    pub fn update(&mut self) -> Result<UIState, Error> {
         match self.rx.recv()? {
             Event::Input(event) => {
                 match event.code {
@@ -82,6 +137,26 @@ impl ConsoleUI {
                         self.menu_selection = self.menu_selection.next();
                         Ok(UIState::Render)
                     },
+                    KeyCode::Down => {
+                        if matches!(self.menu_selection, MenuSelection::Stats) {
+                            self.content_selection.increment(data.list.len());
+                            Ok(UIState::Render)
+                        }
+
+                        else {
+                            Ok(UIState::Alive)
+                        }
+                    },
+                    KeyCode::Up   => {
+                        if matches!(self.menu_selection, MenuSelection::Stats) {
+                            self.content_selection.decrement(data.list.len());
+                            Ok(UIState::Render)
+                        }
+
+                        else {
+                            Ok(UIState::Alive)
+                        }
+                    },
                     KeyCode::Enter     => {
                         if matches!(self.menu_selection, MenuSelection::Quit) {
                             Ok(UIState::Terminated)
@@ -106,7 +181,7 @@ impl ConsoleUI {
         }
     }
 
-    pub fn render(&mut self, data: &ConsoleUIData) -> Result<(), Error> {
+    pub fn render(&mut self, data: &mut ConsoleUIData) -> Result<(), Error> {
         self.terminal.draw(|frame| {
             Self::update_sub_frames(&mut self.main_chunks, &mut self.stats_chunks, &mut self.cur_size, frame.size());
 
@@ -114,7 +189,7 @@ impl ConsoleUI {
             frame.render_widget(Self::create_menu(&self.menu_selection), self.main_chunks[1]);
             match self.menu_selection {
                 MenuSelection::Stats => {
-                    Self::render_stats(frame, &self.stats_chunks, data);
+                    Self::render_stats(frame, &self.stats_chunks, &self.content_selection, data);
                 },
                 MenuSelection::Quit  => {
                     frame.render_widget(Self::create_exit_message(), self.main_chunks[2]);
@@ -180,18 +255,27 @@ impl ConsoleUI {
         )
     }
 
-    fn render_stats(frame: &mut ConsoleFrame, frames: &Vec<Rect>, data: &ConsoleUIData) {
-        let content_text = Paragraph::new("<EMPTY>")
-            .style(Style::default().fg(Color::White))
-            .alignment(Alignment::Center)
+    fn render_stats(frame: &mut ConsoleFrame, frames: &Vec<Rect>, content_selection: &ListSelection, data: &mut ConsoleUIData) {
+        let content_list = List::new({
+            let mut vec = Vec::new();
+
+            for item in &data.list {
+                vec.push(ListItem::new(item.as_str()))
+            }
+            vec
+        }).style(Style::default().fg(Color::White))
         .block(Block::default()
             .borders(Borders::ALL)
             .style(Style::default().fg(Color::White))
             .border_type(BorderType::Plain)
-            );
+        )
+        .highlight_style(Style::default().bg(Color::Yellow));
         let     mem_gauge  = Self::create_overall_mem_gauge(data.highest_adr);
+        let mut list_state = ListState::default();
         
-        frame.render_widget(content_text, frames[0]);
+        list_state.select(content_selection.selection);
+
+        frame.render_stateful_widget(content_list, frames[0], &mut list_state);
         frame.render_widget(mem_gauge,    frames[1]);
     }
 
@@ -221,7 +305,8 @@ impl ConsoleUI {
 
 #[derive(Default)]
 pub struct ConsoleUIData {
-    highest_adr: u64
+    highest_adr: u64,
+    list:        Vec<String>
 }
 
 impl ConsoleUIData {
@@ -245,6 +330,16 @@ impl ConsoleUIData {
         }
 
         self.highest_adr = get_last_section_end_adr(memory_map);
+        self.list = vec![
+            String::from("Schwimmflugel 0"),
+            String::from("Schwimmflugel 1"),
+            String::from("Schwimmflugel 2"),
+            String::from("Schwimmflugel 3"),
+            String::from("Schwimmflugel 4"),
+            String::from("Schwimmflugel 5"),
+            String::from("Schwimmflugel 6"),
+            String::from("Schwimmflugel 7"),
+            ];
         Ok(())
     }
 }

src/Tools/psxreadmap/src/main.rs

@@ -34,13 +34,13 @@ fn run_main(cmd: CommandLine) -> Result<(), Error> {
     let     memory_map = load_memory_map(cmd.use_wsl, cmd.input)?; dump_memory_map(cmd.output, &memory_map)?;
     let     rx         = start_event_loop();
     let     terminal   = setup_console()?;
-    let     ui_data    = ConsoleUIData::new(&memory_map)?;
+    let mut ui_data    = ConsoleUIData::new(&memory_map)?;
     let mut console_ui = ConsoleUI::new(rx, terminal);
 
     loop {
-        match console_ui.update()? {
+        match console_ui.update(&ui_data)? {
             UIState::Alive      => (),
-            UIState::Render     => {console_ui.render(&ui_data)?;}
+            UIState::Render     => {console_ui.render(&mut ui_data)?;}
             UIState::Terminated => break
         }
     }