Edit countdown by local time (#49)

src/app.rs

@@ -1,6 +1,6 @@
 use crate::{
     args::Args,
-    common::{AppTime, AppTimeFormat, Content, Style},
+    common::{AppEditMode, AppTime, AppTimeFormat, Content, Style},
     constants::TICK_VALUE_MS,
     events::{Event, EventHandler, Events},
     storage::AppStorage,
@@ -112,10 +112,11 @@ impl App {
             with_decis,
             pomodoro_mode,
         } = args;
+        let app_time = get_app_time();
         Self {
             mode: Mode::Running,
             content,
-            app_time: get_app_time(),
+            app_time,
             style,
             with_decis,
             countdown: CountdownState::new(
@@ -126,6 +127,7 @@ impl App {
                     with_decis,
                 }),
                 elapsed_value_countdown,
+                app_time,
             ),
             timer: TimerState::new(ClockState::<clock::Timer>::new(ClockStateArgs {
                 initial_value: Duration::ZERO,
@@ -150,6 +152,7 @@ impl App {
             if let Some(event) = events.next().await {
                 if matches!(event, Event::Tick) {
                     self.app_time = get_app_time();
+                    self.countdown.set_app_time(self.app_time);
                 }
 
                 // Pipe events into subviews and handle only 'unhandled' events afterwards
@@ -175,11 +178,32 @@ impl App {
         self.mode != Mode::Quit
     }
 
-    fn is_edit_mode(&self) -> bool {
+    fn get_edit_mode(&self) -> AppEditMode {
         match self.content {
-            Content::Countdown => self.countdown.get_clock().is_edit_mode(),
+            Content::Countdown => {
-            Content::Timer => self.timer.get_clock().is_edit_mode(),
+                if self.countdown.is_clock_edit_mode() {
-            Content::Pomodoro => self.pomodoro.get_clock().is_edit_mode(),
+                    AppEditMode::Clock
+                } else if self.countdown.is_time_edit_mode() {
+                    AppEditMode::Time
+                } else {
+                    AppEditMode::None
+                }
+            }
+
+            Content::Timer => {
+                if self.timer.get_clock().is_edit_mode() {
+                    AppEditMode::Clock
+                } else {
+                    AppEditMode::None
+                }
+            }
+            Content::Pomodoro => {
+                if self.pomodoro.get_clock().is_edit_mode() {
+                    AppEditMode::Clock
+                } else {
+                    AppEditMode::None
+                }
+            }
         }
     }
 
@@ -298,7 +322,7 @@ impl StatefulWidget for AppWidget {
         Footer {
             running_clock: state.clock_is_running(),
             selected_content: state.content,
-            edit_mode: state.is_edit_mode(),
+            app_edit_mode: state.get_edit_mode(),
             app_time: state.app_time,
         }
         .render(v2, buf, &mut state.footer);

src/common.rs

@@ -128,6 +128,13 @@ impl AppTime {
     }
 }
 
+#[derive(Debug)]
+pub enum AppEditMode {
+    None,
+    Clock,
+    Time,
+}
+
 #[cfg(test)]
 mod tests {
 

src/duration.rs

@@ -20,6 +20,10 @@ pub const MINS_PER_HOUR: u64 = 60;
 // https://doc.rust-lang.org/src/core/time.rs.html#36
 const HOURS_PER_DAY: u64 = 24;
 
+// max. 99:59:59
+pub const MAX_DURATION: Duration =
+    Duration::from_secs(100 * MINS_PER_HOUR * SECS_PER_MINUTE).saturating_sub(ONE_SECOND);
+
 #[derive(Debug, Clone, Copy, PartialOrd)]
 pub struct DurationEx {
     inner: Duration,

src/widgets.rs

@@ -5,6 +5,7 @@ pub mod clock_elements_test;
 #[cfg(test)]
 pub mod clock_test;
 pub mod countdown;
+pub mod edit_time;
 pub mod footer;
 pub mod header;
 pub mod pomodoro;

src/widgets/clock.rs

@@ -11,20 +11,13 @@ use ratatui::{
 
 use crate::{
     common::Style,
-    duration::{
+    duration::{DurationEx, MAX_DURATION, ONE_DECI_SECOND, ONE_HOUR, ONE_MINUTE, ONE_SECOND},
-        DurationEx, MINS_PER_HOUR, ONE_DECI_SECOND, ONE_HOUR, ONE_MINUTE, ONE_SECOND,
-        SECS_PER_MINUTE,
-    },
     utils::center_horizontal,
     widgets::clock_elements::{
-        Colon, Digit, Dot, COLON_WIDTH, DIGIT_HEIGHT, DIGIT_WIDTH, DOT_WIDTH,
+        Colon, Digit, Dot, COLON_WIDTH, DIGIT_HEIGHT, DIGIT_SPACE_WIDTH, DIGIT_WIDTH, DOT_WIDTH,
     },
 };
 
-// max. 99:59:59
-const MAX_DURATION: Duration =
-    Duration::from_secs(100 * MINS_PER_HOUR * SECS_PER_MINUTE).saturating_sub(ONE_SECOND);
-
 #[derive(Debug, Copy, Clone, Display, PartialEq, Eq)]
 pub enum Time {
     Decis,
@@ -128,6 +121,11 @@ impl<T> ClockState<T> {
         &self.current_value
     }
 
+    pub fn set_current_value(&mut self, duration: DurationEx) {
+        self.current_value = duration;
+        self.update_format();
+    }
+
     pub fn toggle_edit(&mut self) {
         self.mode = match self.mode.clone() {
             Mode::Editable(_, prev) => {
@@ -463,8 +461,6 @@ impl ClockState<Timer> {
     }
 }
 
-const SPACE_WIDTH: u16 = 1;
-
 pub struct ClockWidget<T>
 where
     T: std::fmt::Debug,
@@ -498,61 +494,61 @@ where
         match format {
             Format::HhMmSs => add_decis(
                 vec![
-                    DIGIT_WIDTH, // h
+                    DIGIT_WIDTH,       // h
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // h
+                    DIGIT_WIDTH,       // h
-                    COLON_WIDTH, // :
+                    COLON_WIDTH,       // :
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    COLON_WIDTH, // :
+                    COLON_WIDTH,       // :
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
                 ],
                 with_decis,
             ),
             Format::HMmSs => add_decis(
                 vec![
-                    DIGIT_WIDTH, // h
+                    DIGIT_WIDTH,       // h
-                    COLON_WIDTH, // :
+                    COLON_WIDTH,       // :
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    COLON_WIDTH, // :
+                    COLON_WIDTH,       // :
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
                 ],
                 with_decis,
             ),
             Format::MmSs => add_decis(
                 vec![
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    COLON_WIDTH, // :
+                    COLON_WIDTH,       // :
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
                 ],
                 with_decis,
             ),
             Format::MSs => add_decis(
                 vec![
-                    DIGIT_WIDTH, // m
+                    DIGIT_WIDTH,       // m
-                    COLON_WIDTH, // :
+                    COLON_WIDTH,       // :
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
                 ],
                 with_decis,
             ),
             Format::Ss => add_decis(
                 vec![
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
-                    SPACE_WIDTH, // (space)
+                    DIGIT_SPACE_WIDTH, // (space)
-                    DIGIT_WIDTH, // s
+                    DIGIT_WIDTH,       // s
                 ],
                 with_decis,
             ),

src/widgets/clock_elements.rs

@@ -9,6 +9,7 @@ pub const DIGIT_WIDTH: u16 = DIGIT_SIZE as u16;
 pub const DIGIT_HEIGHT: u16 = DIGIT_SIZE as u16 + 1 /* border height */;
 pub const COLON_WIDTH: u16 = 4; // incl. padding left + padding right
 pub const DOT_WIDTH: u16 = 4; // incl. padding left + padding right
+pub const DIGIT_SPACE_WIDTH: u16 = 1; // space between digits
 
 #[rustfmt::skip]
 const DIGIT_0: [u8; DIGIT_SIZE * DIGIT_SIZE] = [

src/widgets/countdown.rs

@@ -1,3 +1,15 @@
+use crate::{
+    common::{AppTime, Style},
+    constants::TICK_VALUE_MS,
+    duration::{DurationEx, MAX_DURATION},
+    events::{Event, EventHandler},
+    utils::center,
+    widgets::{
+        clock::{self, ClockState, ClockStateArgs, ClockWidget, Mode as ClockMode},
+        edit_time::EditTimeState,
+    },
+};
+use crossterm::event::KeyModifiers;
 use ratatui::{
     buffer::Buffer,
     crossterm::event::KeyCode,
@@ -5,16 +17,12 @@ use ratatui::{
     text::Line,
     widgets::{StatefulWidget, Widget},
 };
-use std::{cmp::max, time::Duration};
 
-use crate::{
+use std::ops::Sub;
-    common::Style,
+use std::{cmp::max, time::Duration};
-    constants::TICK_VALUE_MS,
+use time::OffsetDateTime;
-    duration::DurationEx,
+
-    events::{Event, EventHandler},
+use super::edit_time::{EditTimeStateArgs, EditTimeWidget};
-    utils::center,
-    widgets::clock::{self, ClockState, ClockStateArgs, ClockWidget, Mode as ClockMode},
-};
 
 /// State for Countdown Widget
 #[derive(Debug, Clone)]
@@ -23,10 +31,17 @@ pub struct CountdownState {
     clock: ClockState<clock::Countdown>,
     /// clock to count time after `DONE` - similar to Mission Elapsed Time (MET)
     elapsed_clock: ClockState<clock::Timer>,
+    app_time: AppTime,
+    /// Edit by local time
+    edit_time: Option<EditTimeState>,
 }
 
 impl CountdownState {
-    pub fn new(clock: ClockState<clock::Countdown>, elapsed_value: Duration) -> Self {
+    pub fn new(
+        clock: ClockState<clock::Countdown>,
+        elapsed_value: Duration,
+        app_time: AppTime,
+    ) -> Self {
         Self {
             clock,
             elapsed_clock: ClockState::<clock::Timer>::new(ClockStateArgs {
@@ -43,6 +58,8 @@ impl CountdownState {
             } else {
                 ClockMode::Initial
             }),
+            app_time,
+            edit_time: None,
         }
     }
 
@@ -62,11 +79,55 @@ impl CountdownState {
     pub fn get_elapsed_value(&self) -> &DurationEx {
         self.elapsed_clock.get_current_value()
     }
+
+    pub fn set_app_time(&mut self, app_time: AppTime) {
+        self.app_time = app_time;
+    }
+
+    fn time_to_edit(&self) -> OffsetDateTime {
+        // get current value
+        let d: Duration = (*self.clock.get_current_value()).into();
+        // transform
+        let dd = time::Duration::try_from(d).unwrap_or(time::Duration::ZERO);
+        // substract from `app_time`
+        OffsetDateTime::from(self.app_time).saturating_add(dd)
+    }
+
+    pub fn min_time_to_edit(&self) -> OffsetDateTime {
+        OffsetDateTime::from(self.app_time)
+    }
+
+    fn max_time_to_edit(&self) -> OffsetDateTime {
+        OffsetDateTime::from(self.app_time)
+            .saturating_add(time::Duration::try_from(MAX_DURATION).unwrap_or(time::Duration::ZERO))
+    }
+
+    fn edit_time_done(&mut self, edit_time: &mut EditTimeState) {
+        // get diff
+        let d: time::Duration = edit_time
+            .get_time()
+            .sub(OffsetDateTime::from(self.app_time));
+        // transfrom
+        let dx: DurationEx = Duration::try_from(d).unwrap_or(Duration::ZERO).into();
+        // update clock
+        self.clock.set_current_value(dx);
+        // remove `edit_time`
+        self.edit_time = None;
+    }
+
+    pub fn is_clock_edit_mode(&self) -> bool {
+        self.clock.is_edit_mode()
+    }
+
+    pub fn is_time_edit_mode(&self) -> bool {
+        self.edit_time.is_some()
+    }
 }
 
 impl EventHandler for CountdownState {
     fn update(&mut self, event: Event) -> Option<Event> {
-        let edit_mode = self.clock.is_edit_mode();
+        let is_edit_clock = self.clock.is_edit_mode();
+        let is_edit_time = self.edit_time.is_some();
         match event {
             Event::Tick => {
                 if !self.clock.is_done() {
@@ -77,12 +138,24 @@ impl EventHandler for CountdownState {
                         self.elapsed_clock.run();
                     }
                 }
+                let min_time = self.min_time_to_edit();
+                let max_time = self.max_time_to_edit();
+                if let Some(edit_time) = &mut self.edit_time {
+                    edit_time.set_min_time(min_time);
+                    edit_time.set_max_time(max_time);
+                }
             }
             Event::Key(key) => match key.code {
                 KeyCode::Char('r') => {
-                    // reset both clocks
+                    // reset both clocks to use intial values
                     self.clock.reset();
                     self.elapsed_clock.reset();
+
+                    // reset `edit_time` back initial value
+                    let time = self.time_to_edit();
+                    if let Some(edit_time) = &mut self.edit_time {
+                        edit_time.set_time(time);
+                    }
                 }
                 KeyCode::Char('s') => {
                     // toggle pause status depending on which clock is running
@@ -91,30 +164,92 @@ impl EventHandler for CountdownState {
                     } else {
                         self.elapsed_clock.toggle_pause();
                     }
+
+                    // finish `edit_time` and continue for using `clock`
+                    if let Some(edit_time) = &mut self.edit_time.clone() {
+                        self.edit_time_done(edit_time);
+                    }
                 }
-                KeyCode::Char('e') => {
+                // STRG + e => toggle edit time
-                    self.clock.toggle_edit();
+                KeyCode::Char('e') if key.modifiers.contains(KeyModifiers::CONTROL) => {
-                    // stop + reset timer entering `edit` mode
+                    // stop editing clock
+                    if self.clock.is_edit_mode() {
+                        // toggle edit mode
+                        self.clock.toggle_edit();
+                    }
+
+                    if let Some(edit_time) = &mut self.edit_time.clone() {
+                        self.edit_time_done(edit_time)
+                    } else {
+                        // update `edit_time`
+                        self.edit_time = Some(EditTimeState::new(EditTimeStateArgs {
+                            time: self.time_to_edit(),
+                            min: self.min_time_to_edit(),
+                            max: self.max_time_to_edit(),
+                        }));
+                    }
+
+                    // stop `clock`
+                    if self.clock.is_running() {
+                        self.clock.toggle_pause();
+                    }
+
+                    // stop `elapsed_clock`
                     if self.elapsed_clock.is_running() {
                         self.elapsed_clock.toggle_pause();
                     }
                 }
-                KeyCode::Left if edit_mode => {
+                // STRG + e => toggle edit clock
+                KeyCode::Char('e') => {
+                    // toggle edit mode
+                    self.clock.toggle_edit();
+
+                    // stop `elapsed_clock`
+                    if self.elapsed_clock.is_running() {
+                        self.elapsed_clock.toggle_pause();
+                    }
+
+                    // finish `edit_time` and continue for using `clock`
+                    if let Some(edit_time) = &mut self.edit_time.clone() {
+                        self.edit_time_done(edit_time);
+                    }
+                }
+                KeyCode::Left if is_edit_clock => {
                     self.clock.edit_next();
                 }
-                KeyCode::Right if edit_mode => {
+                KeyCode::Left if is_edit_time => {
+                    // safe unwrap because of previous check in `is_edit_time`
+                    self.edit_time.as_mut().unwrap().next();
+                }
+                KeyCode::Right if is_edit_clock => {
                     self.clock.edit_prev();
                 }
-                KeyCode::Up if edit_mode => {
+                KeyCode::Right if is_edit_time => {
+                    // safe unwrap because of previous check in `is_edit_time`
+                    self.edit_time.as_mut().unwrap().prev();
+                }
+                KeyCode::Up if is_edit_clock => {
                     self.clock.edit_up();
                     // whenever `clock`'s value is changed, reset `elapsed_clock`
                     self.elapsed_clock.reset();
                 }
-                KeyCode::Down if edit_mode => {
+                KeyCode::Up if is_edit_time => {
+                    // safe unwrap because of previous check in `is_edit_time`
+                    self.edit_time.as_mut().unwrap().up();
+                    // whenever `clock`'s value is changed, reset `elapsed_clock`
+                    self.elapsed_clock.reset();
+                }
+                KeyCode::Down if is_edit_clock => {
                     self.clock.edit_down();
                     // whenever clock value is changed, reset timer
                     self.elapsed_clock.reset();
                 }
+                KeyCode::Down if is_edit_time => {
+                    // safe unwrap because of previous check in `is_edit_time`
+                    self.edit_time.as_mut().unwrap().down();
+                    // whenever clock value is changed, reset timer
+                    self.elapsed_clock.reset();
+                }
                 _ => return Some(event),
             },
             _ => return Some(event),
@@ -127,47 +262,77 @@ pub struct Countdown {
     pub style: Style,
 }
 
+fn human_days_diff(a: &OffsetDateTime, b: &OffsetDateTime) -> String {
+    let days_diff = (a.date() - b.date()).whole_days();
+    match days_diff {
+        0 => "today".to_owned(),
+        1 => "tomorrow".to_owned(),
+        n => format!("+{}days", n),
+    }
+}
+
 impl StatefulWidget for Countdown {
     type State = CountdownState;
     fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
-        let clock = ClockWidget::new(self.style);
+        // render `edit_time` OR `clock`
+        if let Some(edit_time) = &mut state.edit_time {
+            let label = Line::raw(
+                format!(
+                    "Countdown {} {}",
+                    edit_time.get_selected().clone(),
+                    human_days_diff(edit_time.get_time(), &state.app_time.into())
+                )
+                .to_uppercase(),
+            );
+            let widget = EditTimeWidget::new(self.style);
+            let area = center(
+                area,
+                Constraint::Length(max(widget.get_width(), label.width() as u16)),
+                Constraint::Length(widget.get_height() + 1 /* height of label */),
+            );
+            let [v1, v2] =
+                Layout::vertical(Constraint::from_lengths([widget.get_height(), 1])).areas(area);
 
-        let label = Line::raw(
+            widget.render(v1, buf, edit_time);
-            if state.clock.is_done() {
+            label.centered().render(v2, buf);
-                if state.clock.with_decis {
+        } else {
-                    format!(
+            let label = Line::raw(
-                        "Countdown {} +{}",
+                if state.clock.is_done() {
-                        state.clock.get_mode(),
+                    if state.clock.with_decis {
-                        state
+                        format!(
-                            .elapsed_clock
+                            "Countdown {} +{}",
-                            .get_current_value()
+                            state.clock.get_mode(),
-                            .to_string_with_decis()
+                            state
-                    )
+                                .elapsed_clock
+                                .get_current_value()
+                                .to_string_with_decis()
+                        )
+                    } else {
+                        format!(
+                            "Countdown {} +{}",
+                            state.clock.get_mode(),
+                            state.elapsed_clock.get_current_value()
+                        )
+                    }
                 } else {
-                    format!(
+                    format!("Countdown {}", state.clock.get_mode())
-                        "Countdown {} +{}",
-                        state.clock.get_mode(),
-                        state.elapsed_clock.get_current_value()
-                    )
                 }
-            } else {
+                .to_uppercase(),
-                format!("Countdown {}", state.clock.get_mode())
+            );
-            }
+            let widget = ClockWidget::new(self.style);
-            .to_uppercase(),
+            let area = center(
-        );
+                area,
+                Constraint::Length(max(
+                    widget.get_width(&state.clock.get_format(), state.clock.with_decis),
+                    label.width() as u16,
+                )),
+                Constraint::Length(widget.get_height() + 1 /* height of label */),
+            );
+            let [v1, v2] =
+                Layout::vertical(Constraint::from_lengths([widget.get_height(), 1])).areas(area);
 
-        let area = center(
+            widget.render(v1, buf, &mut state.clock);
-            area,
+            label.centered().render(v2, buf);
-            Constraint::Length(max(
+        }
-                clock.get_width(&state.clock.get_format(), state.clock.with_decis),
-                label.width() as u16,
-            )),
-            Constraint::Length(clock.get_height() + 1 /* height of label */),
-        );
-        let [v1, v2] =
-            Layout::vertical(Constraint::from_lengths([clock.get_height(), 1])).areas(area);
-
-        clock.render(v1, buf, &mut state.clock);
-        label.centered().render(v2, buf);
     }
 }

src/widgets/edit_time.rs

@@ -0,0 +1,231 @@
+use std::fmt;
+use time::OffsetDateTime;
+
+use ratatui::{
+    buffer::Buffer,
+    layout::{Constraint, Layout, Rect},
+    widgets::{StatefulWidget, Widget},
+};
+
+use crate::{
+    common::Style,
+    widgets::clock_elements::{Colon, Digit, COLON_WIDTH, DIGIT_SPACE_WIDTH, DIGIT_WIDTH},
+};
+
+use super::clock_elements::DIGIT_HEIGHT;
+
+#[derive(Debug, Clone)]
+pub enum Selected {
+    Seconds,
+    Minutes,
+    Hours,
+}
+
+impl Selected {
+    pub fn next(&self) -> Self {
+        match self {
+            Selected::Seconds => Selected::Minutes,
+            Selected::Minutes => Selected::Hours,
+            Selected::Hours => Selected::Seconds,
+        }
+    }
+
+    pub fn prev(&self) -> Self {
+        match self {
+            Selected::Seconds => Selected::Hours,
+            Selected::Minutes => Selected::Seconds,
+            Selected::Hours => Selected::Minutes,
+        }
+    }
+}
+
+impl fmt::Display for Selected {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Selected::Seconds => write!(f, "[edit seconds]"),
+            Selected::Minutes => write!(f, "[edit minutes]"),
+            Selected::Hours => write!(f, "[edit hours]"),
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct EditTimeState {
+    selected: Selected,
+    time: OffsetDateTime,
+    min: OffsetDateTime,
+    max: OffsetDateTime,
+}
+
+#[derive(Debug, Clone)]
+pub struct EditTimeStateArgs {
+    pub time: OffsetDateTime,
+    pub min: OffsetDateTime,
+    pub max: OffsetDateTime,
+}
+
+impl EditTimeState {
+    pub fn new(args: EditTimeStateArgs) -> Self {
+        EditTimeState {
+            time: args.time,
+            min: args.min,
+            max: args.max,
+            selected: Selected::Minutes,
+        }
+    }
+
+    pub fn set_time(&mut self, time: OffsetDateTime) {
+        self.time = time;
+    }
+
+    pub fn set_min_time(&mut self, min: OffsetDateTime) {
+        self.min = min;
+    }
+
+    pub fn set_max_time(&mut self, min: OffsetDateTime) {
+        self.max = min;
+    }
+
+    pub fn get_time(&mut self) -> &OffsetDateTime {
+        &self.time
+    }
+
+    pub fn get_selected(&mut self) -> &Selected {
+        &self.selected
+    }
+
+    pub fn next(&mut self) {
+        self.selected = self.selected.next();
+    }
+
+    pub fn prev(&mut self) {
+        self.selected = self.selected.prev();
+    }
+
+    pub fn up(&mut self) {
+        self.time = match self.selected {
+            Selected::Seconds => {
+                if self
+                    .time
+                    .lt(&self.max.saturating_sub(time::Duration::new(1, 0)))
+                {
+                    self.time.saturating_add(time::Duration::new(1, 0))
+                } else {
+                    self.time
+                }
+            }
+            Selected::Minutes => {
+                if self
+                    .time
+                    .lt(&self.max.saturating_sub(time::Duration::new(60, 0)))
+                {
+                    self.time.saturating_add(time::Duration::new(60, 0))
+                } else {
+                    self.time
+                }
+            }
+            Selected::Hours => {
+                if self
+                    .time
+                    .lt(&self.max.saturating_sub(time::Duration::new(60 * 60, 0)))
+                {
+                    self.time.saturating_add(time::Duration::new(60 * 60, 0))
+                } else {
+                    self.time
+                }
+            }
+        }
+    }
+
+    pub fn down(&mut self) {
+        self.time = match self.selected {
+            Selected::Seconds => {
+                if self
+                    .time
+                    .ge(&self.min.saturating_add(time::Duration::new(1, 0)))
+                {
+                    self.time.saturating_sub(time::Duration::new(1, 0))
+                } else {
+                    self.time
+                }
+            }
+            Selected::Minutes => {
+                if self
+                    .time
+                    .ge(&self.min.saturating_add(time::Duration::new(60, 0)))
+                {
+                    self.time.saturating_sub(time::Duration::new(60, 0))
+                } else {
+                    self.time
+                }
+            }
+            Selected::Hours => {
+                if self
+                    .time
+                    .ge(&self.min.saturating_add(time::Duration::new(60 * 60, 0)))
+                {
+                    self.time.saturating_sub(time::Duration::new(60 * 60, 0))
+                } else {
+                    self.time
+                }
+            }
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct EditTimeWidget {
+    style: Style,
+}
+
+impl EditTimeWidget {
+    pub fn new(style: Style) -> Self {
+        Self { style }
+    }
+
+    fn get_horizontal_lengths(&self) -> Vec<u16> {
+        vec![
+            DIGIT_WIDTH,       // h
+            DIGIT_SPACE_WIDTH, // (space)
+            DIGIT_WIDTH,       // h
+            COLON_WIDTH,       // :
+            DIGIT_WIDTH,       // m
+            DIGIT_SPACE_WIDTH, // (space)
+            DIGIT_WIDTH,       // m
+            COLON_WIDTH,       // :
+            DIGIT_WIDTH,       // s
+            DIGIT_SPACE_WIDTH, // (space)
+            DIGIT_WIDTH,       // s
+        ]
+    }
+
+    pub fn get_width(&self) -> u16 {
+        self.get_horizontal_lengths().iter().sum()
+    }
+
+    pub fn get_height(&self) -> u16 {
+        DIGIT_HEIGHT
+    }
+}
+
+impl StatefulWidget for EditTimeWidget {
+    type State = EditTimeState;
+    fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
+        let symbol = self.style.get_digit_symbol();
+        let edit_hours = matches!(state.selected, Selected::Hours);
+        let edit_minutes = matches!(state.selected, Selected::Minutes);
+        let edit_secs = matches!(state.selected, Selected::Seconds);
+
+        let [hh, _, h, c_hm, mm, _, m, c_ms, ss, _, s] =
+            Layout::horizontal(Constraint::from_lengths(self.get_horizontal_lengths())).areas(area);
+
+        Digit::new((state.time.hour() as u64) / 10, edit_hours, symbol).render(hh, buf);
+        Digit::new((state.time.hour() as u64) % 10, edit_hours, symbol).render(h, buf);
+        Colon::new(symbol).render(c_hm, buf);
+        Digit::new((state.time.minute() as u64) / 10, edit_minutes, symbol).render(mm, buf);
+        Digit::new((state.time.minute() as u64) % 10, edit_minutes, symbol).render(m, buf);
+        Colon::new(symbol).render(c_ms, buf);
+        Digit::new((state.time.second() as u64) / 10, edit_secs, symbol).render(ss, buf);
+        Digit::new((state.time.second() as u64) % 10, edit_secs, symbol).render(s, buf);
+    }
+}

src/widgets/footer.rs

@@ -1,6 +1,6 @@
 use std::collections::BTreeMap;
 
-use crate::common::{AppTime, AppTimeFormat, Content};
+use crate::common::{AppEditMode, AppTime, AppTimeFormat, Content};
 use ratatui::{
     buffer::Buffer,
     layout::{Constraint, Layout, Rect},
@@ -45,7 +45,7 @@ impl FooterState {
 pub struct Footer {
     pub running_clock: bool,
     pub selected_content: Content,
-    pub edit_mode: bool,
+    pub app_edit_mode: AppEditMode,
     pub app_time: AppTime,
 }
 
@@ -139,9 +139,39 @@ impl StatefulWidget for Footer {
                             Style::default().add_modifier(Modifier::BOLD),
                         )),
                         Cell::from(Line::from({
-                            if self.edit_mode {
+                            match self.app_edit_mode {
-                                vec![
+                                AppEditMode::None => {
-                                    Span::from("[e]dit done"),
+                                    let mut spans = vec![
+                                        Span::from(if self.running_clock {
+                                            "[s]top"
+                                        } else {
+                                            "[s]tart"
+                                        }),
+                                        Span::from(SPACE),
+                                        Span::from("[r]eset"),
+                                        Span::from(SPACE),
+                                        Span::from("[e]dit"),
+                                    ];
+                                    if self.selected_content == Content::Countdown {
+                                        spans.extend_from_slice(&[
+                                            Span::from(SPACE),
+                                            Span::from("[ctrl+e]dit by local time"),
+                                        ]);
+                                    }
+                                    if self.selected_content == Content::Pomodoro {
+                                        spans.extend_from_slice(&[
+                                            Span::from(SPACE),
+                                            Span::from("[← →]switch work/pause"),
+                                        ]);
+                                    }
+                                    spans
+                                }
+                                others => vec![
+                                    Span::from(match others {
+                                        AppEditMode::Clock => "[e]dit done",
+                                        AppEditMode::Time => "[ctrl+e]dit done",
+                                        _ => "",
+                                    }),
                                     Span::from(SPACE),
                                     Span::from(format!(
                                         "[{} {}]edit selection",
@@ -152,26 +182,7 @@ impl StatefulWidget for Footer {
                                     Span::from(format!("[{}]edit up", scrollbar::VERTICAL.begin)), // ↑
                                     Span::from(SPACE),
                                     Span::from(format!("[{}]edit up", scrollbar::VERTICAL.end)), // ↓,
-                                ]
+                                ],
-                            } else {
-                                let mut spans = vec![
-                                    Span::from(if self.running_clock {
-                                        "[s]top"
-                                    } else {
-                                        "[s]tart"
-                                    }),
-                                    Span::from(SPACE),
-                                    Span::from("[r]eset"),
-                                    Span::from(SPACE),
-                                    Span::from("[e]dit"),
-                                ];
-                                if self.selected_content == Content::Pomodoro {
-                                    spans.extend_from_slice(&[
-                                        Span::from(SPACE),
-                                        Span::from("[← →]switch work/pause"),
-                                    ]);
-                                }
-                                spans
                             }
                         })),
                     ]),