ClockWidget (#10)

src/app.rs

@@ -3,7 +3,6 @@ use crate::{
     constants::TICK_VALUE_MS,
     events::{Event, EventHandler, Events},
     terminal::Terminal,
-    utils::center,
     widgets::{
         countdown::{Countdown, CountdownWidget},
         footer::Footer,
@@ -17,7 +16,7 @@ use ratatui::{
     buffer::Buffer,
     crossterm::event::{KeyCode, KeyEvent},
     layout::{Constraint, Layout, Rect},
-    widgets::{Block, StatefulWidget, Widget},
+    widgets::{StatefulWidget, Widget},
 };
 use tracing::debug;
 
@@ -114,8 +113,6 @@ struct AppWidget;
 
 impl AppWidget {
     fn render_content(&self, area: Rect, buf: &mut Buffer, state: &mut App) {
-        // center content
-        let area = center(area, Constraint::Length(50), Constraint::Length(2));
         match state.content {
             Content::Timer => TimerWidget.render(area, buf, &mut state.timer),
             Content::Countdown => CountdownWidget.render(area, buf, &mut state.countdown),
@@ -129,14 +126,13 @@ impl StatefulWidget for AppWidget {
     fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
         let vertical = Layout::vertical([
             Constraint::Length(1),
-            Constraint::Fill(0),
+            Constraint::Percentage(100),
             Constraint::Length(if state.show_menu { 2 } else { 1 }),
         ]);
-        let [v0, v1, v4] = vertical.areas(area);
+        let [v0, v1, v2] = vertical.areas(area);
 
-        Block::new().render(area, buf);
         Header::new(true).render(v0, buf);
         self.render_content(v1, buf, state);
-        Footer::new(state.show_menu, state.content).render(v4, buf);
+        Footer::new(state.show_menu, state.content).render(v2, buf);
     }
 }

src/clock.rs

@@ -3,6 +3,12 @@ use std::marker::PhantomData;
 use std::time::Duration;
 use strum::Display;
 
+use ratatui::{
+    buffer::Buffer,
+    layout::{Constraint, Direction, Layout, Position, Rect},
+    widgets::StatefulWidget,
+};
+
 #[derive(Debug, Copy, Clone, Display, PartialEq, Eq)]
 pub enum Mode {
     Initial,
@@ -115,3 +121,227 @@ impl Clock<Timer> {
         }
     }
 }
+
+const DIGIT_SYMBOL: &str = "█";
+
+const DIGIT_SIZE: usize = 5;
+
+#[rustfmt::skip]
+const DIGIT_0: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_1: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_2: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    1, 1, 1, 1, 1,
+    1, 1, 0, 0, 0,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_3: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_4: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 0, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_5: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    1, 1, 0, 0, 0,
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_6: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    1, 1, 0, 0, 0,
+    1, 1, 1, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_7: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+    0, 0, 0, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_8: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 1, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_9: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    1, 1, 0, 1, 1,
+    1, 1, 1, 1, 1,
+    0, 0, 0, 1, 1,
+    1, 1, 1, 1, 1,
+];
+
+#[rustfmt::skip]
+const DIGIT_ERROR: [u8; DIGIT_SIZE * DIGIT_SIZE] = [
+    1, 1, 1, 1, 1,
+    1, 1, 0, 0, 0,
+    1, 1, 1, 1, 0,
+    1, 1, 0, 0, 0,
+    1, 1, 1, 1, 1,
+];
+
+pub struct ClockWidget<T> {
+    phantom: PhantomData<T>,
+}
+
+impl<T> ClockWidget<T> {
+    pub fn new() -> Self {
+        Self {
+            phantom: PhantomData,
+        }
+    }
+
+    fn get_horizontal_lengths(&self) -> [u16; 3] {
+        [11, 4, 11]
+    }
+
+    pub fn get_width(&self) -> u16 {
+        self.get_horizontal_lengths().iter().sum()
+    }
+
+    pub fn get_height(&self) -> u16 {
+        DIGIT_SIZE as u16
+    }
+
+    fn render_number(number: u64, area: Rect, buf: &mut Buffer) {
+        let left = area.left();
+        let top = area.top();
+
+        let digits = match number {
+            0 => DIGIT_0,
+            1 => DIGIT_1,
+            2 => DIGIT_2,
+            3 => DIGIT_3,
+            4 => DIGIT_4,
+            5 => DIGIT_5,
+            6 => DIGIT_6,
+            7 => DIGIT_7,
+            8 => DIGIT_8,
+            9 => DIGIT_9,
+            _ => DIGIT_ERROR,
+        };
+
+        digits.iter().enumerate().for_each(|(i, item)| {
+            let x = i % DIGIT_SIZE;
+            let y = i / DIGIT_SIZE;
+            if *item == 1 {
+                let p = Position {
+                    x: left + x as u16,
+                    y: top + y as u16,
+                };
+                if let Some(cell) = buf.cell_mut(p) {
+                    cell.set_symbol(DIGIT_SYMBOL);
+                }
+            }
+        });
+    }
+
+    fn render_digit_pair(d: u64, area: Rect, buf: &mut Buffer) {
+        let h = Layout::new(
+            Direction::Horizontal,
+            Constraint::from_lengths([DIGIT_SIZE as u16, 2, DIGIT_SIZE as u16]),
+        )
+        .split(area);
+        Self::render_number(d / 10, h[0], buf);
+        Self::render_number(d % 10, h[2], buf);
+    }
+
+    fn render_colon(area: Rect, buf: &mut Buffer) {
+        let left = area.left();
+        let top = area.top();
+
+        let positions = [
+            Position {
+                x: left + 1,
+                y: top + 1,
+            },
+            Position {
+                x: left + 2,
+                y: top + 1,
+            },
+            Position {
+                x: left + 1,
+                y: top + 3,
+            },
+            Position {
+                x: left + 2,
+                y: top + 3,
+            },
+        ];
+
+        for pos in positions {
+            if let Some(cell) = buf.cell_mut(pos) {
+                cell.set_symbol(DIGIT_SYMBOL);
+            }
+        }
+    }
+}
+
+impl<T> StatefulWidget for ClockWidget<T> {
+    type State = Clock<T>;
+
+    fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
+        // center
+        let [_, h, _] = Layout::horizontal([
+            Constraint::Fill(0),
+            Constraint::Length(self.get_width()),
+            Constraint::Fill(0),
+        ])
+        .areas(area);
+
+        let [h1, h2, h3] = Layout::new(
+            Direction::Horizontal,
+            Constraint::from_lengths(self.get_horizontal_lengths()),
+        )
+        .areas(h);
+
+        Self::render_digit_pair(state.minutes(), h1, buf);
+        Self::render_colon(h2, buf);
+        Self::render_digit_pair(state.seconds(), h3, buf);
+    }
+}

src/utils.rs

@@ -1,11 +1,25 @@
 use ratatui::layout::{Constraint, Flex, Layout, Rect};
 
-/// Helper to center an area by given `Constraint`'s
+/// Helper to center an area horizontally by given `Constraint`
 /// based on [Center a Rect](https://ratatui.rs/recipes/layout/center-a-rect)
-pub fn center(base_area: Rect, horizontal: Constraint, vertical: Constraint) -> Rect {
+pub fn center_horizontal(base_area: Rect, horizontal: Constraint) -> Rect {
     let [area] = Layout::horizontal([horizontal])
         .flex(Flex::Center)
         .areas(base_area);
-    let [area] = Layout::vertical([vertical]).flex(Flex::Center).areas(area);
     area
 }
+
+/// Helper to center an area vertically by given `Constraint`
+/// based on [Center a Rect](https://ratatui.rs/recipes/layout/center-a-rect)
+pub fn center_vertical(base_area: Rect, vertical: Constraint) -> Rect {
+    let [area] = Layout::vertical([vertical])
+        .flex(Flex::Center)
+        .areas(base_area);
+    area
+}
+/// Helper to center an area by given `Constraint`'s
+/// based on [Center a Rect](https://ratatui.rs/recipes/layout/center-a-rect)
+pub fn center(base_area: Rect, horizontal: Constraint, vertical: Constraint) -> Rect {
+    let area = center_horizontal(base_area, horizontal);
+    center_vertical(area, vertical)
+}

src/widgets/countdown.rs

@@ -2,12 +2,15 @@ use ratatui::{
     buffer::Buffer,
     crossterm::event::KeyCode,
     layout::{Constraint, Layout, Rect},
-    widgets::{Paragraph, StatefulWidget, Widget},
+    text::Line,
+    widgets::{StatefulWidget, Widget},
 };
+use std::cmp::max;
 
 use crate::{
-    clock::{self, Clock},
+    clock::{self, Clock, ClockWidget},
     events::{Event, EventHandler},
+    utils::center,
 };
 
 #[derive(Debug, Clone)]
@@ -41,14 +44,21 @@ impl EventHandler for Countdown {
 
 pub struct CountdownWidget;
 
-impl StatefulWidget for &CountdownWidget {
+impl StatefulWidget for CountdownWidget {
     type State = Countdown;
     fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
-        let h = Paragraph::new(state.headline.clone()).centered();
-        let c = Paragraph::new(format!("{}", state.clock)).centered();
-        let [v1, v2] = Layout::vertical([Constraint::Length(1), Constraint::Length(1)]).areas(area);
+        let clock = ClockWidget::new();
+        let headline = Line::raw(state.headline.clone());
 
-        h.render(v1, buf);
-        c.render(v2, buf);
+        let area = center(
+            area,
+            Constraint::Length(max(clock.get_width(), headline.width() as u16)),
+            Constraint::Length(clock.get_height() + 2),
+        );
+        let [v1, _, v2] =
+            Layout::vertical(Constraint::from_lengths([clock.get_height(), 1, 1])).areas(area);
+
+        clock.render(v1, buf, &mut state.clock);
+        headline.centered().render(v2, buf);
     }
 }

src/widgets/pomodoro.rs

@@ -1,9 +1,13 @@
 use ratatui::{
     buffer::Buffer,
-    layout::Rect,
-    widgets::{Paragraph, Widget},
+    layout::{Constraint, Layout, Rect},
+    style::Stylize,
+    text::Line,
+    widgets::Widget,
 };
 
+use crate::utils::center;
+
 #[derive(Debug, Default, Clone, PartialEq, Eq)]
 pub struct Pomodoro {
     headline: String,
@@ -17,7 +21,17 @@ impl Pomodoro {
 
 impl Widget for Pomodoro {
     fn render(self, area: Rect, buf: &mut Buffer) {
-        let h = Paragraph::new(self.headline).centered();
-        h.render(area, buf);
+        let headline = Line::raw(self.headline.clone());
+
+        let area = center(
+            area,
+            Constraint::Length(headline.width() as u16),
+            Constraint::Length(3),
+        );
+
+        let [v1, _, v2] = Layout::vertical(Constraint::from_lengths([1, 1, 1])).areas(area);
+
+        headline.render(v2, buf);
+        Line::raw("SOON").centered().italic().render(v1, buf);
     }
 }

src/widgets/timer.rs

@@ -1,14 +1,16 @@
+use crate::{
+    clock::{self, Clock, ClockWidget},
+    events::{Event, EventHandler},
+    utils::center,
+};
 use ratatui::{
     buffer::Buffer,
     crossterm::event::KeyCode,
     layout::{Constraint, Layout, Rect},
-    widgets::{Paragraph, StatefulWidget, Widget},
-};
-
-use crate::{
-    clock::{self, Clock},
-    events::{Event, EventHandler},
+    text::Line,
+    widgets::{StatefulWidget, Widget},
 };
+use std::cmp::max;
 
 #[derive(Debug, Clone)]
 pub struct Timer {
@@ -41,14 +43,21 @@ impl EventHandler for Timer {
 
 pub struct TimerWidget;
 
-impl StatefulWidget for TimerWidget {
+impl StatefulWidget for &TimerWidget {
     type State = Timer;
     fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
-        let h = Paragraph::new(state.headline.clone()).centered();
-        let c = Paragraph::new(format!("{}", state.clock)).centered();
-        let [v1, v2] = Layout::vertical([Constraint::Length(1), Constraint::Length(1)]).areas(area);
+        let clock = ClockWidget::new();
+        let headline = Line::raw(state.headline.clone());
 
-        h.render(v1, buf);
-        c.render(v2, buf)
+        let area = center(
+            area,
+            Constraint::Length(max(clock.get_width(), headline.width() as u16)),
+            Constraint::Length(clock.get_height() + 2),
+        );
+        let [v1, _, v2] =
+            Layout::vertical(Constraint::from_lengths([clock.get_height(), 1, 1])).areas(area);
+
+        clock.render(v1, buf, &mut state.clock);
+        headline.centered().render(v2, buf);
     }
 }