checkpoint

Cargo.toml

@@ -1,16 +1,19 @@
 [package]
 name = "katabastird"
-version = "1.0.0"
+version = "1.6.1"
 edition = "2021"
 rust-version = "1.61"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+description = "A simple graphical countdown timer that is configured and launched from the commandline."
+repository = "https://gitlab.com/nebkor/katabastird"
+readme = "README.md"
+keywords = ["unix", "commandline", "timer", "gui", "cli"]
+license-file = "LICENSE.md"
 
 [dependencies]
 clap = { version = "4", features = ["derive", "env", "unicode", "suggestions", "usage"] }
 eframe = { version = "0.19", features = ["wgpu"] }
-egui = { version = "0.19", features = ["bytemuck"] }
 egui_extras = "0.19"
-naga = { version = "0.10", features = ["spv-out", "wgsl-out", "wgsl-in"] }
 rodio = { version = "0.16" }
-wgpu = { version = "0.14", features = ["naga", "spirv"] }
+# naga = { version = "0.10", features = ["spv-out", "wgsl-out", "wgsl-in"] }
+# wgpu = { version = "0.14", features = ["naga", "spirv"] }

README.md

@@ -6,15 +6,20 @@ Katabastird is a simple countdown timer that is configured and launched from the
 Usage: katabastird [OPTIONS]
 
 Options:
-      --hours <HOURS>      Hours to count down [default: 0]
-  -m, --minutes <MINUTES>  Minutes to count down [default: 0]
-  -s, --seconds <SECONDS>  Seconds to count down [default: 0]
+  -h, --hours <HOURS>      Hours to count down
+  -m, --minutes <MINUTES>  Minutes to count down
+  -s, --seconds <SECONDS>  Seconds to count down
   -a, --alarm <ALARM>      Audio file to play at the end of the countdown
+  -A
   -r, --running            Begin countdown immediately
   -u, --count-up           Count up from zero, actually
   -p, --predator           Use the Predator font
-  -h, --help               Print help information
+  -H, --help               Print this help
   -V, --version            Print version information
 ```
 
-![a Predator's view of the timer while it's paused](./predator_timer_small.png)
+![a Predator's view of the timer while it's paused](./predator_timer_small.png "a Predator's view of rthe timer while it's paused")
+
+"[Katabasis](https://en.wikipedia.org/wiki/Katabasis)" is the descent into the Underworld.
+
+All content is licensed under the Chaos License; see [LICENSE.md](./LICENSE.md) for details.

VERSION

@@ -0,0 +1 @@
+1.61

VERSIONING.md

@@ -0,0 +1,32 @@
+# Golden Versioning
+
+```katabastird``` is versioned under a scheme I call "goldver", as an homage to the
+vastly inferior [semver](https://semver.org).
+
+## What does "goldver" mean?
+
+When projects are versioned with goldver, the first version is "1". Note that it
+is not "1.0", or, "1.0-prealpha-release-preview", or anything nonsensical like
+that. As new versions are released, decimals from *phi*, the [Golden
+Ratio](https://en.wikipedia.org/wiki/Golden_ratio), are appended after an
+initial decimal point. So the second released version will be "1.6", the third
+would be "1.61", etc., and on until perfection is asymptotically approached as
+the number of released versions goes to infinity.
+
+## Wait, didn't Donald Knuth do this?
+
+No! He uses [pi for TeX and e for MetaFont](https://texfaq.org/FAQ-TeXfuture),
+obviously COMPLETELY different.
+
+## Ok.
+
+Cool.
+
+## What version is katabastird now?
+
+Canonically, see the ```VERSION``` file. Heretically, once there have been
+at least three releases, the version string in the ```Cargo.toml``` file will
+always be of the form "1.6.x", where *x* is at least one digit long, starting
+with "1". Each subsequent release will append the next digit of *phi* to
+*x*. The number of releases can be calculated by counting the number of digits
+in *x* and adding 2 to that.

src/lib.rs

@@ -1,5 +1,13 @@
-pub const AIRHORN: &[u8] = include_bytes!("../airhorn_alarm.mp3");
-pub const PREDATOR_FONT: &[u8] = include_bytes!("../Predator.ttf");
+use std::time::Duration;
+
+pub const AIRHORN: &[u8] = include_bytes!("../resources/airhorn_alarm.mp3");
+pub const PREDATOR_FONT: &[u8] = include_bytes!("../resources/Predator.ttf");
+
+pub(crate) const MIN_REPAINT: Duration = Duration::from_millis(100);
+pub(crate) const MAX_REPAINT: Duration = Duration::from_millis(250);
+
+pub(crate) const DIGIT_FACTOR: f32 = 0.4;
+pub(crate) const TEXT_FACTOR: f32 = 0.2;
 
 pub mod cli;
 pub mod timer;

src/main.rs

@@ -1,4 +1,4 @@
-use egui::Vec2;
+use eframe::egui::Vec2;
 use katabastird::timer::Timer;
 
 fn main() {

src/timer.rs

@@ -1,316 +0,0 @@
-use std::time::{Duration, Instant};
-
-use clap::Parser;
-use eframe::{App, CreationContext};
-use egui::{Color32, Direction, FontId, Layout, RichText, Ui};
-use egui_extras::{Size, StripBuilder};
-
-use crate::{cli::Cli, util::*, AIRHORN, PREDATOR_FONT};
-
-const MIN_REPAINT: Duration = Duration::from_millis(100);
-const MAX_REPAINT: Duration = Duration::from_millis(250);
-
-const DIGIT_FACTOR: f32 = 0.4;
-const TEXT_FACTOR: f32 = 0.2;
-
-#[derive(Debug, Clone, Copy)]
-pub enum CountDirection {
-    Up,
-    Down,
-}
-
-#[derive(Debug, Clone)]
-pub struct Timer {
-    direction: CountDirection,
-    duration: Duration,
-    state: TimerState,
-    tstart: Instant, // so we can blink
-    alarm: Option<Vec<u8>>,
-}
-
-#[derive(Debug, Clone, Copy)]
-enum TimerState {
-    Unstarted,
-    Paused(ChronoState),
-    Running(ChronoState),
-    Finished,
-}
-
-impl PartialEq for TimerState {
-    fn eq(&self, other: &Self) -> bool {
-        matches!(
-            (self, other),
-            (Self::Paused(_), Self::Paused(_))
-                | (Self::Running(_), Self::Running(_))
-                | (Self::Unstarted, Self::Unstarted)
-                | (Self::Finished, Self::Finished)
-        )
-    }
-}
-
-impl Eq for TimerState {}
-
-#[derive(Debug, Clone, Copy)]
-struct ChronoState {
-    updated: Instant,
-    remaining: Duration,
-}
-
-impl App for Timer {
-    fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
-        ctx.request_repaint_after(MAX_REPAINT);
-        let height = ctx.input().screen_rect().height();
-        egui::CentralPanel::default().show(ctx, |ui| {
-            match self.state {
-                TimerState::Unstarted => self.unstarted(ui, height),
-                TimerState::Running(cs) => {
-                    let dur = Instant::now() - cs.updated;
-                    let dur = MIN_REPAINT.saturating_sub(dur);
-                    ctx.request_repaint_after(dur);
-                    self.running(ui, height, cs);
-                }
-                TimerState::Paused(cs) => self.paused(ui, height, cs),
-                TimerState::Finished => self.finished(ui, height),
-            }
-            // check for quit key
-            if ui.input().key_pressed(egui::Key::Q) || ui.input().key_pressed(egui::Key::Escape) {
-                frame.close();
-            }
-        });
-    }
-}
-
-impl Timer {
-    pub fn new(ctx: &CreationContext) -> Self {
-        let cli = Cli::parse();
-        let predator = cli.predator;
-        let seconds = cli.hours.unwrap_or(0) * 3600
-            + cli.minutes.unwrap_or(0) * 60
-            + cli.seconds.unwrap_or(0);
-        let duration = Duration::from_secs(seconds);
-
-        let direction = if cli.count_up {
-            CountDirection::Up
-        } else {
-            CountDirection::Down
-        };
-
-        let alarm = if let Some(path) = cli.alarm {
-            let buffer = std::fs::read(&path)
-                .unwrap_or_else(|_| panic!("Could not open {:?} for reading.", path));
-            Some(buffer)
-        } else if cli.airhorn {
-            Some(AIRHORN.to_owned())
-        } else {
-            None
-        };
-
-        if predator {
-            let mut fonts = egui::FontDefinitions::default();
-            fonts.font_data.insert(
-                "predator".to_owned(),
-                egui::FontData::from_static(PREDATOR_FONT),
-            );
-            fonts
-                .families
-                .entry(egui::FontFamily::Monospace)
-                .or_default()
-                .insert(0, "predator".to_owned());
-            ctx.egui_ctx.set_fonts(fonts);
-        }
-        ctx.egui_ctx.request_repaint_after(Duration::from_secs(1));
-        let mut timer = Timer {
-            duration,
-            direction,
-            state: TimerState::Unstarted,
-            tstart: Instant::now(),
-            alarm,
-        };
-        if cli.running {
-            let cs = ChronoState {
-                remaining: duration,
-                updated: Instant::now(),
-            };
-
-            timer.state = TimerState::Running(cs);
-        }
-        timer
-    }
-
-    fn unstarted(&mut self, ui: &mut Ui, size: f32) {
-        let tsize = size * 0.5;
-        let start = RichText::new("START")
-            .font(FontId::monospace(tsize))
-            .color(Color32::WHITE)
-            .background_color(Color32::LIGHT_GREEN);
-
-        StripBuilder::new(ui)
-            .size(Size::remainder())
-            .cell_layout(Layout::centered_and_justified(egui::Direction::TopDown))
-            .horizontal(|mut strip| {
-                strip.cell(|ui| {
-                    if ui.button(start).clicked() {
-                        let dur = self.duration;
-                        self.state = TimerState::Running(ChronoState {
-                            updated: Instant::now(),
-                            remaining: dur,
-                        });
-                    }
-                });
-            });
-    }
-
-    fn running(&mut self, ui: &mut Ui, size: f32, cs: ChronoState) {
-        let tsize = size * TEXT_FACTOR;
-        let text = RichText::new("PAUSE")
-            .font(FontId::monospace(tsize))
-            .color(Color32::GOLD);
-
-        let mut is_paused = false;
-        let elapsed = Instant::now() - cs.updated;
-        let remaining = cs.remaining.saturating_sub(elapsed);
-
-        StripBuilder::new(ui)
-            .size(Size::relative(0.3333))
-            .size(Size::remainder())
-            .cell_layout(Layout::centered_and_justified(Direction::LeftToRight))
-            .vertical(|mut strip| {
-                // first the pause
-                strip.cell(|ui| {
-                    if ui.button(text).clicked() {
-                        is_paused = true;
-                    }
-                });
-
-                // if we're counting up, do the right thing
-                let remaining = match self.direction {
-                    CountDirection::Down => remaining,
-                    CountDirection::Up => self.duration - remaining,
-                };
-                // now the numbers
-                let color = Color32::DARK_GRAY;
-                let tsize = size * DIGIT_FACTOR;
-
-                display_digits(&mut strip, remaining, color, tsize);
-            });
-
-        if remaining.is_zero() {
-            if let Some(alarm_file) = &self.alarm {
-                let alarm_file = alarm_file.to_owned();
-                std::thread::spawn(move || alarm(alarm_file));
-            }
-            self.state = TimerState::Finished;
-            return;
-        }
-
-        let cs = ChronoState {
-            remaining,
-            updated: Instant::now(),
-        };
-        if is_paused {
-            // did we click the reset button?
-            if self.state == TimerState::Unstarted {
-                return;
-            }
-            self.state = TimerState::Paused(cs);
-        } else {
-            self.state = TimerState::Running(cs);
-        }
-    }
-
-    fn paused(&mut self, ui: &mut Ui, vsize: f32, cs: ChronoState) {
-        let mut is_running = false;
-        let tsize = vsize * TEXT_FACTOR;
-
-        let remaining = cs.remaining;
-        StripBuilder::new(ui)
-            .size(Size::relative(0.33333))
-            .size(Size::remainder())
-            .cell_layout(Layout::centered_and_justified(Direction::LeftToRight))
-            .vertical(|mut strip| {
-                strip.strip(|pstrip| {
-                    pstrip
-                        .sizes(Size::remainder(), 2)
-                        .cell_layout(Layout::centered_and_justified(Direction::TopDown))
-                        .horizontal(|mut pstrip| {
-                            pstrip.cell(|ui| {
-                                let resume = RichText::new("RESUME")
-                                    .color(Color32::GREEN)
-                                    .font(FontId::monospace(tsize));
-                                if ui.button(resume).clicked() {
-                                    is_running = true;
-                                }
-                            });
-                            pstrip.cell(|ui| {
-                                let reset = RichText::new("RESET")
-                                    .color(Color32::RED)
-                                    .font(FontId::monospace(tsize));
-                                if ui.button(reset).clicked() {
-                                    self.state = TimerState::Unstarted;
-                                }
-                            });
-                        });
-                });
-                let color = {
-                    let blink = (Instant::now() - self.tstart).as_secs() % 2 == 0;
-                    if blink {
-                        Color32::BLACK
-                    } else {
-                        Color32::DARK_GRAY
-                    }
-                };
-                // if we're counting up, do the right thing
-                let remaining = match self.direction {
-                    CountDirection::Down => remaining,
-                    CountDirection::Up => self.duration - remaining,
-                };
-                display_digits(&mut strip, remaining, color, vsize * DIGIT_FACTOR);
-            });
-
-        if is_running {
-            let cs = ChronoState {
-                remaining,
-                updated: Instant::now(),
-            };
-            self.state = TimerState::Running(cs);
-        }
-    }
-
-    fn finished(&mut self, ui: &mut Ui, vsize: f32) {
-        let remaining = match self.direction {
-            CountDirection::Up => self.duration,
-            CountDirection::Down => Duration::from_nanos(0),
-        };
-        StripBuilder::new(ui)
-            .size(Size::relative(0.33333))
-            .size(Size::remainder())
-            .cell_layout(Layout::centered_and_justified(Direction::LeftToRight))
-            .vertical(|mut strip| {
-                strip.strip(|pstrip| {
-                    pstrip
-                        .size(Size::remainder())
-                        .cell_layout(Layout::centered_and_justified(Direction::TopDown))
-                        .horizontal(|mut pstrip| {
-                            pstrip.cell(|ui| {
-                                let tsize = vsize * 0.3;
-                                let reset = RichText::new("RESTART")
-                                    .color(Color32::DARK_GREEN)
-                                    .font(FontId::monospace(tsize));
-                                if ui.button(reset).clicked() {
-                                    self.state = TimerState::Unstarted;
-                                }
-                            });
-                        });
-                });
-                let color = {
-                    let blink = (Instant::now() - self.tstart).as_secs() % 2 == 0;
-                    if blink {
-                        Color32::BLACK
-                    } else {
-                        Color32::DARK_GRAY
-                    }
-                };
-                display_digits(&mut strip, remaining, color, vsize * DIGIT_FACTOR);
-            });
-    }
-}

src/timer/eframe_app.rs

@@ -0,0 +1,57 @@
+use std::time::Instant;
+
+use eframe::{
+    egui::{self, Frame},
+    epaint::Color32,
+    Frame as EFrame,
+};
+
+use super::{state::*, Timer};
+use crate::{MAX_REPAINT, MIN_REPAINT};
+
+const STARTING_COLOR: &[f32; 3] = &[10.0, 4.0, 14.0];
+const UNIT_COLOR: &[f32; 3] = &[0.986, 0.154, 0.055]; // [160, 125, 9].normalize()
+
+impl eframe::App for Timer {
+    fn update(&mut self, ctx: &egui::Context, frame: &mut EFrame) {
+        ctx.request_repaint_after(MAX_REPAINT);
+        let height = ctx.input().screen_rect().height();
+
+        let t = self.done.powi(3);
+        let color = get_color(t);
+
+        egui::CentralPanel::default()
+            .frame(Frame::none().fill(color))
+            .show(ctx, |ui| {
+                match self.state {
+                    TimerState::Unstarted => self.unstarted(ui, height),
+                    TimerState::Running(cs) => {
+                        let dur = Instant::now() - cs.updated;
+                        let dur = MIN_REPAINT.saturating_sub(dur);
+                        ctx.request_repaint_after(dur);
+                        self.running(ui, height, cs);
+                    }
+                    TimerState::Paused(cs) => self.paused(ui, height, cs),
+                    TimerState::Finished => self.finished(ui, height),
+                }
+                // check for quit key
+                if ui.input().key_pressed(egui::Key::Q) || ui.input().key_pressed(egui::Key::Escape)
+                {
+                    frame.close();
+                }
+            });
+    }
+}
+
+fn get_color(t: f32) -> Color32 {
+    let [sr, sg, sb] = STARTING_COLOR;
+    let [ur, ug, ub] = UNIT_COLOR;
+    let mag = t * 162.0;
+    let (r, g, b) = (
+        (sr + (mag * ur).round()) as u8,
+        (sg + (mag * ug).round()) as u8,
+        (sb + (mag * ub).round()) as u8,
+    );
+    // when t is 1.0, then the final color is roughly 170, 29, 23.
+    Color32::from_rgb(r, g, b)
+}

src/timer/gui.rs

@@ -0,0 +1,58 @@
+use std::{sync::mpsc::Sender, time::Duration};
+
+use eframe::egui::{Color32, Direction, Layout, RichText, Ui};
+use egui_extras::{Size, StripBuilder};
+
+use super::state::NextTimerState;
+use crate::util::display_digits;
+
+pub(crate) fn two_rows(
+    ui: &mut Ui,
+    buttons: &[(RichText, NextTimerState)],
+    sender: Sender<NextTimerState>,
+    remaining: Duration,
+    digit_color: Color32,
+    digit_size: f32,
+) {
+    StripBuilder::new(ui)
+        .size(Size::relative(0.33333))
+        .size(Size::remainder())
+        .cell_layout(Layout::centered_and_justified(Direction::LeftToRight))
+        .vertical(|mut strip| {
+            strip.strip(|pstrip| {
+                pstrip
+                    .sizes(Size::remainder(), buttons.len())
+                    .cell_layout(Layout::centered_and_justified(Direction::TopDown))
+                    .horizontal(|mut pstrip| {
+                        for (button, signal) in buttons.iter() {
+                            pstrip.cell(|ui| {
+                                if ui.button(button.clone()).clicked() {
+                                    sender.send(*signal).unwrap();
+                                }
+                            });
+                        }
+                    });
+            });
+
+            display_digits(&mut strip, remaining, digit_color, digit_size);
+        });
+}
+
+pub(crate) fn one_row(
+    ui: &mut Ui,
+    buttons: &[(RichText, NextTimerState)],
+    sender: Sender<NextTimerState>,
+) {
+    StripBuilder::new(ui)
+        .sizes(Size::remainder(), buttons.len())
+        .cell_layout(Layout::centered_and_justified(Direction::TopDown))
+        .horizontal(|mut strip| {
+            for (button, signal) in buttons.iter() {
+                strip.cell(|ui| {
+                    if ui.button(button.clone()).clicked() {
+                        sender.send(*signal).unwrap();
+                    }
+                });
+            }
+        });
+}

src/timer/mod.rs

@@ -0,0 +1,257 @@
+use std::sync::mpsc::channel;
+use std::time::{Duration, Instant};
+
+use clap::Parser;
+use eframe::egui::{self, Color32, FontId, RichText, Ui};
+
+use crate::{cli::Cli, util::*, AIRHORN, DIGIT_FACTOR, MAX_REPAINT, PREDATOR_FONT, TEXT_FACTOR};
+
+mod state;
+use state::{ChronoState, NextTimerState, TimerState};
+mod eframe_app;
+mod gui;
+
+#[derive(Debug, Clone, Copy)]
+pub enum CountDirection {
+    Up,
+    Down,
+}
+
+#[derive(Clone)]
+pub struct Timer {
+    direction: CountDirection,
+    duration: Duration,
+    state: TimerState,
+    tstart: Instant, // so we can blink
+    alarm: Option<Vec<u8>>,
+    done: f32,
+}
+
+impl Timer {
+    pub fn new(ctx: &eframe::CreationContext) -> Self {
+        let cli = Cli::parse();
+        let predator = cli.predator;
+        let seconds = cli.hours.unwrap_or(0) * 3600
+            + cli.minutes.unwrap_or(0) * 60
+            + cli.seconds.unwrap_or(0);
+        let duration = Duration::from_secs(seconds);
+
+        let direction = if cli.count_up {
+            CountDirection::Up
+        } else {
+            CountDirection::Down
+        };
+
+        let alarm = if let Some(path) = cli.alarm {
+            let buffer = std::fs::read(&path).unwrap_or_else(|_| {
+                panic!("Could not open alarm sound file {:?} for reading.", path)
+            });
+            Some(buffer)
+        } else if cli.airhorn {
+            Some(AIRHORN.to_owned())
+        } else {
+            None
+        };
+
+        if predator {
+            let mut fonts = egui::FontDefinitions::default();
+            fonts.font_data.insert(
+                "predator".to_owned(),
+                egui::FontData::from_static(PREDATOR_FONT),
+            );
+            fonts
+                .families
+                .entry(egui::FontFamily::Monospace)
+                .or_default()
+                .insert(0, "predator".to_owned());
+            ctx.egui_ctx.set_fonts(fonts);
+        }
+        ctx.egui_ctx.request_repaint_after(MAX_REPAINT);
+        let updated = Instant::now();
+        let mut timer = Timer {
+            duration,
+            direction,
+            state: TimerState::Unstarted,
+            tstart: updated,
+            alarm,
+            done: 0.0,
+        };
+        if cli.running {
+            let cs = ChronoState {
+                remaining: duration,
+                updated,
+            };
+
+            timer.state = TimerState::Running(cs);
+        }
+
+        timer
+    }
+
+    fn unstarted(&mut self, ui: &mut Ui, size: f32) {
+        let tsize = size * 0.5;
+        let start = RichText::new("START")
+            .font(FontId::monospace(tsize))
+            .color(Color32::WHITE)
+            .background_color(Color32::LIGHT_GREEN);
+        self.done = 0.0;
+
+        let (sender, rx) = channel();
+        gui::one_row(ui, &[(start, NextTimerState::Running)], sender);
+
+        if rx.recv().is_ok() {
+            let dur = self.duration;
+            self.state = TimerState::Running(ChronoState {
+                updated: Instant::now(),
+                remaining: dur,
+            });
+        }
+    }
+
+    fn running(&mut self, ui: &mut Ui, size: f32, cs: ChronoState) {
+        let tsize = size * TEXT_FACTOR;
+        let text = RichText::new("PAUSE")
+            .font(FontId::monospace(tsize))
+            .color(Color32::GOLD);
+
+        let elapsed = Instant::now() - cs.updated;
+        let remaining = cs.remaining.saturating_sub(elapsed);
+        if remaining.is_zero() {
+            if let Some(alarm_sound) = &self.alarm {
+                let alarm_sound = alarm_sound.to_owned();
+                std::thread::spawn(move || alarm(alarm_sound));
+            }
+            self.state = TimerState::Finished;
+            self.done = 1.0;
+            return;
+        }
+
+        self.done = 1.0 - (remaining.as_secs_f32() / self.duration.as_secs_f32());
+
+        let (sender, rx) = channel();
+        {
+            // if we're counting up, do the right thing
+            let remaining = match self.direction {
+                CountDirection::Down => remaining,
+                CountDirection::Up => self.duration - remaining,
+            };
+            let color = Color32::DARK_GRAY;
+            let tsize = size * DIGIT_FACTOR;
+            gui::two_rows(
+                ui,
+                &[(text, state::NextTimerState::Paused)],
+                sender,
+                remaining,
+                color,
+                tsize,
+            );
+        }
+
+        let cs = ChronoState {
+            remaining,
+            updated: Instant::now(),
+        };
+
+        if rx.recv().is_ok() {
+            self.state = TimerState::Paused(cs);
+        } else {
+            self.state = TimerState::Running(cs);
+        }
+    }
+
+    fn paused(&mut self, ui: &mut Ui, vsize: f32, cs: ChronoState) {
+        let tsize = vsize * TEXT_FACTOR;
+
+        let remaining = cs.remaining;
+        let resume = RichText::new("RESUME")
+            .color(Color32::GREEN)
+            .font(FontId::monospace(tsize));
+        let reset = RichText::new("RESET")
+            .color(Color32::RED)
+            .font(FontId::monospace(tsize));
+
+        let (sender, rx) = channel();
+        {
+            let color = {
+                let blink = (Instant::now() - self.tstart).as_secs() % 2 == 0;
+                if blink {
+                    Color32::BLACK
+                } else {
+                    Color32::DARK_GRAY
+                }
+            };
+            // if we're counting up, do the right thing
+            let remaining = match self.direction {
+                CountDirection::Down => remaining,
+                CountDirection::Up => self.duration - remaining,
+            };
+
+            gui::two_rows(
+                ui,
+                &[
+                    (resume, NextTimerState::Running),
+                    (reset, NextTimerState::Unstarted),
+                ],
+                sender,
+                remaining,
+                color,
+                vsize * DIGIT_FACTOR,
+            );
+        }
+
+        let cs = ChronoState {
+            remaining,
+            updated: Instant::now(),
+        };
+        if let Ok(s) = rx.recv() {
+            match s {
+                NextTimerState::Running => {
+                    self.state = TimerState::Running(cs);
+                }
+                NextTimerState::Unstarted => {
+                    self.state = TimerState::Unstarted;
+                }
+                _ => unreachable!(),
+            }
+        } else {
+            self.state = TimerState::Paused(cs);
+        }
+    }
+
+    fn finished(&mut self, ui: &mut Ui, vsize: f32) {
+        let remaining = match self.direction {
+            CountDirection::Up => self.duration,
+            CountDirection::Down => Duration::from_nanos(0),
+        };
+
+        let tsize = vsize * 0.3;
+        let reset = RichText::new("RESTART")
+            .color(Color32::DARK_GREEN)
+            .font(FontId::monospace(tsize));
+        let color = {
+            let blink = (Instant::now() - self.tstart).as_secs() % 2 == 0;
+            if blink {
+                Color32::BLACK
+            } else {
+                Color32::DARK_GRAY
+            }
+        };
+        let (sender, rx) = channel();
+
+        gui::two_rows(
+            ui,
+            &[(reset, NextTimerState::Running)], // technically we can send anything but let's try not to be misleading
+            sender,
+            remaining,
+            color,
+            vsize * DIGIT_FACTOR,
+        );
+        if rx.recv().is_ok() {
+            let cs = ChronoState {
+                remaining: self.duration,
+                updated: Instant::now(),
+            };
+            self.state = TimerState::Running(cs);
+        }
+    }
+}

src/timer/state.rs

@@ -0,0 +1,40 @@
+use std::time::{Duration, Instant};
+
+#[derive(Debug, Clone, Copy)]
+pub(crate) enum TimerState {
+    Unstarted,
+    Paused(ChronoState),
+    Running(ChronoState),
+    Finished,
+}
+
+// this is a bit of a hack to deat with not being able to have const instances of the regular
+// timerstate.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub(crate) enum NextTimerState {
+    Unstarted,
+    Paused,
+    Running,
+    // no need for finished, there will never be a button to click on that says "finished"
+}
+
+impl PartialEq for TimerState {
+    fn eq(&self, other: &Self) -> bool {
+        matches!(
+            (self, other),
+            (Self::Paused(_), Self::Paused(_))
+                | (Self::Running(_), Self::Running(_))
+                | (Self::Unstarted, Self::Unstarted)
+                | (Self::Finished, Self::Finished)
+        )
+    }
+}
+
+impl Eq for TimerState {}
+impl Eq for NextTimerState {}
+
+#[derive(Debug, Clone, Copy)]
+pub(crate) struct ChronoState {
+    pub updated: Instant,
+    pub remaining: Duration,
+}

src/util.rs

@@ -1,6 +1,6 @@
 use std::{io::Cursor, time::Duration};
 
-use egui::{Color32, Direction, FontId, Layout, RichText};
+use eframe::egui::{Color32, Direction, FontId, Layout, RichText};
 use egui_extras::{Size, Strip};
 use rodio::{source::Source, Decoder, OutputStream};