Project · Plans: a roadmap, a burndown, milestones, workload

Roadmap lays initiatives across months in lanes: each a bar from its
first day through its last, filled as far as it has come, under the
months' names and a line at today; hover a bar for its dates. Bars sit
at fractions of the span, so nothing is measured, and a strip too
narrow for its months scrolls sideways at a least width per month.
GanttChart and TimelineView are the charts GanttChart.

BurndownChart lives with the charts, on their scales, labels, tiles
and paint: the ideal line from the scope down to nothing, what was left
at each day's end so far, and a line at today; hover a day to read it.

MilestoneProgress shows a milestone's issues done as a bar and a count,
when it is due, and whether it keeps pace: on track, at risk when the
work trails the time gone by more than a tenth, late past its day, or
done. WorkloadView sets each person's points against what they can
take, the bar turning red past it, in columns that line up.

src/project/milestone.rs

@@ -0,0 +1,239 @@
+use gpui::{
+    App, ElementId, FontWeight, IntoElement, ParentElement, RenderOnce, SharedString, Styled,
+    Window, div,
+};
+use jiff::civil::Date;
+
+use super::tasks::clock_today;
+use crate::{
+    motion::ProgressBar,
+    primitives::Severity,
+    theme::{ActiveTheme, TextSize},
+    typography::{Ellipsis, fresh, tabular},
+};
+
+/// Whether a milestone keeps pace.
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum Standing {
+    OnTrack,
+    AtRisk,
+    Late,
+    Done,
+}
+
+impl Standing {
+    pub fn words(self) -> &'static str {
+        match self {
+            Standing::OnTrack => "On track",
+            Standing::AtRisk => "At risk",
+            Standing::Late => "Late",
+            Standing::Done => "Done",
+        }
+    }
+
+    fn severity(self) -> Severity {
+        match self {
+            Standing::OnTrack | Standing::Done => Severity::Success,
+            Standing::AtRisk => Severity::Warning,
+            Standing::Late => Severity::Danger,
+        }
+    }
+}
+
+/// Days from `from` to `to`.
+fn days(from: Date, to: Date) -> i64 {
+    i64::from(to.since(from).expect("days between two dates").get_days())
+}
+
+/// Where `done` of `total` stands on `today`, from `start` to `target`: done when all are, late past the target, at risk when the share done trails the share of time gone by more than a tenth.
+pub(crate) fn standing(
+    start: Date,
+    target: Date,
+    today: Date,
+    done: usize,
+    total: usize,
+) -> Standing {
+    if done == total {
+        return Standing::Done;
+    }
+    if today > target {
+        return Standing::Late;
+    }
+    let gone = days(start, today).max(0) as f32 / days(start, target).max(1) as f32;
+    let share = done as f32 / total as f32;
+    match share + 0.1 < gone {
+        true => Standing::AtRisk,
+        false => Standing::OnTrack,
+    }
+}
+
+/// When a target falls from `today`, in words: due today, in so many days, or so many days late.
+fn due(target: Date, today: Date) -> String {
+    match days(today, target) {
+        0 => "Due today".into(),
+        1 => "Due tomorrow".into(),
+        left if left > 1 => format!("{left} days left"),
+        -1 => "A day late".into(),
+        late => format!("{} days late", -late),
+    }
+}
+
+/// A milestone on its way: its name, whether it keeps pace, how many of its issues are done as a bar and a count, and when it is due.
+#[derive(IntoElement)]
+pub struct MilestoneProgress {
+    id: ElementId,
+    name: SharedString,
+    start: Date,
+    target: Date,
+    done: usize,
+    total: usize,
+    today: Option<Date>,
+}
+
+impl MilestoneProgress {
+    /// Work from `start` meant to end by `target`, with `done` of `total` issues done.
+    pub fn new(
+        id: impl Into<ElementId>,
+        name: impl Into<SharedString>,
+        (start, target): (Date, Date),
+        (done, total): (usize, usize),
+    ) -> Self {
+        assert!(
+            target >= start,
+            "a milestone's target comes after its start"
+        );
+        assert!(total > 0 && done <= total, "{done} of {total} issues done");
+        Self {
+            id: id.into(),
+            name: name.into(),
+            start,
+            target,
+            done,
+            total,
+            today: None,
+        }
+    }
+
+    /// The day pace is read on; the clock's otherwise.
+    pub fn today(mut self, day: Date) -> Self {
+        self.today = Some(day);
+        self
+    }
+}
+
+impl RenderOnce for MilestoneProgress {
+    fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement {
+        let today = match self.today {
+            Some(day) => day,
+            None => {
+                fresh((self.id.clone(), "clock"), window, cx);
+                clock_today("milestone progress")
+            }
+        };
+        let stands = standing(self.start, self.target, today, self.done, self.total);
+        let theme = cx.theme();
+        let colors = &theme.colors;
+        let ink = stands.severity().color(colors);
+        let quiet = |text: String| {
+            tabular(div())
+                .flex_none()
+                .text_size(theme.text_size(TextSize::Sm))
+                .text_color(colors.fg_muted)
+                .child(text)
+        };
+        let share = self.done as f32 / self.total as f32;
+        div()
+            .flex()
+            .flex_col()
+            .gap_2()
+            .child(
+                div()
+                    .flex()
+                    .items_center()
+                    .gap_3()
+                    .child(
+                        div()
+                            .flex_1()
+                            .min_w_0()
+                            .font_weight(FontWeight::MEDIUM)
+                            .child(Ellipsis::new(self.name)),
+                    )
+                    .child(
+                        div()
+                            .flex_none()
+                            .flex()
+                            .items_center()
+                            .gap_1p5()
+                            .text_size(theme.text_size(TextSize::Sm))
+                            .text_color(ink)
+                            .child(div().size(theme.status_dot()).rounded_full().bg(ink))
+                            .child(stands.words()),
+                    ),
+            )
+            .child(ProgressBar::new((self.id.clone(), "done"), share))
+            .child(
+                div()
+                    .flex()
+                    .flex_wrap()
+                    .justify_between()
+                    .gap_x_3()
+                    .child(quiet(format!("{} of {} issues", self.done, self.total)))
+                    .child(quiet(match stands {
+                        Standing::Done => format!("Due {}", self.target.strftime("%b %-d")),
+                        _ => due(self.target, today),
+                    })),
+            )
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use jiff::civil::date;
+
+    use super::{Standing, due, standing};
+
+    #[test]
+    fn a_milestone_keeps_pace_trails_or_runs_late() {
+        let (start, target) = (date(2026, 9, 1), date(2026, 9, 21));
+        let today = date(2026, 9, 11);
+        assert_eq!(
+            standing(start, target, today, 5, 10),
+            Standing::OnTrack,
+            "half the time, half the work"
+        );
+        assert_eq!(
+            standing(start, target, today, 3, 10),
+            Standing::AtRisk,
+            "half the time, three tenths done"
+        );
+        assert_eq!(
+            standing(start, target, today, 9, 20),
+            Standing::OnTrack,
+            "trailing by less than a tenth"
+        );
+        assert_eq!(
+            standing(start, target, date(2026, 9, 22), 9, 10),
+            Standing::Late
+        );
+        assert_eq!(
+            standing(start, target, date(2026, 9, 30), 10, 10),
+            Standing::Done
+        );
+    }
+
+    #[test]
+    fn a_target_reads_as_days_left_or_late() {
+        let target = date(2026, 9, 21);
+        let words = [21, 20, 16, 22, 24].map(|day| due(target, date(2026, 9, day)));
+        assert_eq!(
+            words,
+            [
+                "Due today",
+                "Due tomorrow",
+                "5 days left",
+                "A day late",
+                "3 days late"
+            ]
+        );
+    }
+}

src/project/mod.rs

@@ -2,10 +2,13 @@ mod board;
 mod card;
 mod labels;
 mod marks;
+mod milestone;
 mod moves;
 mod panel;
+mod roadmap;
 mod tasks;
 mod work;
+mod workload;
 
 #[cfg(all(test, feature = "test-support"))]
 mod tests;
@@ -14,6 +17,9 @@ pub use board::{KanbanBoard, KanbanCard, KanbanColumn};
 pub use card::IssueCard;
 pub use labels::LabelManager;
 pub use marks::{AssigneePicker, IssueIdBadge, PriorityIndicator, StatusSelect};
+pub use milestone::{MilestoneProgress, Standing};
 pub use panel::TaskDetailPanel;
+pub use roadmap::{Initiative, Roadmap};
 pub use tasks::{TaskItem, TaskList};
 pub use work::{IssueId, Person, Priority, Status, Task};
+pub use workload::{Load, WorkloadView};

src/project/roadmap.rs

@@ -0,0 +1,283 @@
+use gpui::{
+    App, ElementId, InteractiveElement, IntoElement, ParentElement, RenderOnce, SharedString,
+    StatefulInteractiveElement, Styled, Window, div, relative,
+};
+use jiff::{ToSpan, civil::Date};
+
+use crate::{
+    layout::on_axis,
+    primitives::Tooltip,
+    theme::{ActiveTheme, Density, Radius, TextSize},
+    typography::{Ellipsis, format},
+};
+
+/// An initiative on a roadmap: its key, its name, its first and last day, and how far along it is.
+#[derive(Clone, Debug, PartialEq)]
+pub struct Initiative {
+    pub key: SharedString,
+    pub name: SharedString,
+    pub start: Date,
+    pub end: Date,
+    pub progress: f32,
+}
+
+impl Initiative {
+    pub fn new(
+        key: impl Into<SharedString>,
+        name: impl Into<SharedString>,
+        start: Date,
+        end: Date,
+    ) -> Self {
+        let name = name.into();
+        assert!(end >= start, "initiative {name} ends before it starts");
+        Self {
+            key: key.into(),
+            name,
+            start,
+            end,
+            progress: 0.0,
+        }
+    }
+
+    /// How far along it is, zero to one.
+    pub fn progress(mut self, share: f32) -> Self {
+        assert!(
+            (0.0..=1.0).contains(&share),
+            "progress is a share, zero to one"
+        );
+        self.progress = share;
+        self
+    }
+}
+
+/// Where `day` falls along the span from `first`, `span` days long, as a share clamped to the span.
+pub(crate) fn along(first: Date, span: i32, day: Date) -> f32 {
+    let offset = day.since(first).expect("days between two dates").get_days();
+    (offset as f32 / span as f32).clamp(0.0, 1.0)
+}
+
+/// Initiatives across months in lanes, as teams or themes: each a bar from its first day through its last, filled as far as it has come, under the months' names, with a line at today. Hover a bar to read its dates; too narrow for its months, it scrolls sideways.
+#[derive(IntoElement)]
+pub struct Roadmap {
+    id: ElementId,
+    first: Date,
+    months: i8,
+    lanes: Vec<(SharedString, Vec<Initiative>)>,
+    today: Option<Date>,
+}
+
+impl Roadmap {
+    /// `months` months from the one `first` falls in.
+    pub fn new(id: impl Into<ElementId>, first: Date, months: i8) -> Self {
+        assert!(
+            (1..=24).contains(&months),
+            "a roadmap spans one to twenty-four months"
+        );
+        Self {
+            id: id.into(),
+            first: first.first_of_month(),
+            months,
+            lanes: Vec::new(),
+            today: None,
+        }
+    }
+
+    /// A lane of initiatives under its name.
+    pub fn lane(
+        mut self,
+        name: impl Into<SharedString>,
+        initiatives: impl IntoIterator<Item = Initiative>,
+    ) -> Self {
+        self.lanes
+            .push((name.into(), initiatives.into_iter().collect()));
+        self
+    }
+
+    /// Marks this day with a line.
+    pub fn today(mut self, today: Date) -> Self {
+        self.today = Some(today);
+        self
+    }
+}
+
+impl RenderOnce for Roadmap {
+    fn render(self, _: &mut Window, cx: &mut App) -> impl IntoElement {
+        let end = self
+            .first
+            .checked_add((self.months as i64).months())
+            .expect("a roadmap within jiff's range");
+        let span = end
+            .since(self.first)
+            .expect("days of the roadmap")
+            .get_days();
+        let theme = cx.theme();
+        let colors = &theme.colors;
+        let row = theme.table_row(Density::Compact);
+        let months: Vec<(f32, Date)> = (0..self.months)
+            .map(|month| {
+                let day = self
+                    .first
+                    .checked_add((month as i64).months())
+                    .expect("a month of the roadmap");
+                (along(self.first, span, day), day)
+            })
+            .collect();
+        let head = div()
+            .relative()
+            .h(row)
+            .children(months.iter().map(|(x, day)| {
+                let name = match day.month() == 1 || *day == self.first {
+                    true => day.strftime("%b %Y").to_string(),
+                    false => day.strftime("%b").to_string(),
+                };
+                div()
+                    .absolute()
+                    .left(relative(*x))
+                    .top_0()
+                    .h_full()
+                    .flex()
+                    .items_center()
+                    .pl_1p5()
+                    .whitespace_nowrap()
+                    .text_size(theme.text_size(TextSize::Xs))
+                    .text_color(colors.fg_subtle)
+                    .child(name)
+            }));
+        let rules = months.iter().map(|(x, _)| {
+            div()
+                .absolute()
+                .left(relative(*x))
+                .top_0()
+                .bottom_0()
+                .border_l_1()
+                .border_color(colors.border)
+        });
+        let today = self
+            .today
+            .filter(|today| (self.first..end).contains(today))
+            .map(|today| {
+                div()
+                    .absolute()
+                    .left(relative(along(self.first, span, today)))
+                    .top_0()
+                    .bottom_0()
+                    .border_l_1()
+                    .border_color(colors.hue(3, "roadmap today"))
+            });
+        let radius = theme.radius(Radius::Md);
+        let lanes = self
+            .lanes
+            .into_iter()
+            .enumerate()
+            .map(|(lane_ix, (name, initiatives))| {
+                let hue = colors.hue(lane_ix % colors.chart.len(), format_args!("lane {name}"));
+                let bars = initiatives
+                    .into_iter()
+                    .filter(|each| each.end >= self.first && each.start < end)
+                    .map(|each| {
+                        let (from, to) = (
+                            along(self.first, span, each.start),
+                            along(
+                                self.first,
+                                span,
+                                each.end.tomorrow().expect("a day after the end"),
+                            ),
+                        );
+                        let dates = format!(
+                            "{}: {} – {}, {} done",
+                            each.name,
+                            each.start.strftime("%b %-d"),
+                            each.end.strftime("%b %-d"),
+                            format::percent(f64::from(each.progress), 0, false)
+                        );
+                        let named = each.key.clone();
+                        div().relative().h(row).child(
+                            div()
+                                .id((self.id.clone(), format!("initiative-{}", each.key)))
+                                .debug_selector(move || format!("initiative {named}"))
+                                .absolute()
+                                .left(relative(from))
+                                .w(relative(to - from))
+                                .top_1()
+                                .bottom_1()
+                                .rounded(radius)
+                                .bg(hue.opacity(0.16))
+                                .tooltip(Tooltip::text(dates))
+                                .child(
+                                    div()
+                                        .absolute()
+                                        .left_0()
+                                        .top_0()
+                                        .bottom_0()
+                                        .w(relative(each.progress))
+                                        .rounded(radius)
+                                        .bg(hue.opacity(0.32)),
+                                )
+                                .child(
+                                    div()
+                                        .relative()
+                                        .h_full()
+                                        .px_2()
+                                        .flex()
+                                        .items_center()
+                                        .text_size(theme.text_size(TextSize::Sm))
+                                        .text_color(colors.fg)
+                                        .child(
+                                            div()
+                                                .flex_1()
+                                                .min_w_0()
+                                                .child(Ellipsis::new(each.name)),
+                                        ),
+                                ),
+                        )
+                    });
+                div()
+                    .flex()
+                    .flex_col()
+                    .child(
+                        div()
+                            .h(row)
+                            .flex()
+                            .items_center()
+                            .text_size(theme.text_size(TextSize::Sm))
+                            .text_color(colors.fg_muted)
+                            .child(name),
+                    )
+                    .children(bars.collect::<Vec<_>>())
+            });
+        let least = theme.project().month * self.months as f32;
+        on_axis(
+            div()
+                .id((self.id.clone(), "scroll"))
+                .debug_selector(|| "roadmap".into())
+                .overflow_x_scroll(),
+        )
+        .child(
+            div().min_w(least).flex().flex_col().child(head).child(
+                div()
+                    .relative()
+                    .flex()
+                    .flex_col()
+                    .gap_2()
+                    .children(rules)
+                    .children(lanes.collect::<Vec<_>>())
+                    .children(today),
+            ),
+        )
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use jiff::civil::date;
+
+    use super::along;
+
+    #[test]
+    fn days_fall_along_the_span_and_stay_inside_it() {
+        let first = date(2026, 9, 1);
+        assert_eq!(along(first, 30, date(2026, 9, 16)), 0.5);
+        assert_eq!(along(first, 30, date(2026, 8, 20)), 0.0);
+        assert_eq!(along(first, 30, date(2026, 12, 1)), 1.0);
+    }
+}

src/project/tests/boards.rs

@@ -186,3 +186,41 @@ fn the_panel_hands_on_the_task_after_each_edit(cx: &mut TestAppContext) {
         "a blank title is not taken"
     );
 }
+
+fn roadmap(_: Entity<Desk>) -> AnyElement {
+    crate::project::Roadmap::new("roadmap", date(2026, 9, 1), 2)
+        .lane(
+            "Design",
+            [
+                crate::project::Initiative::new(
+                    "early",
+                    "Early",
+                    date(2026, 7, 1),
+                    date(2026, 8, 30),
+                ),
+                crate::project::Initiative::new(
+                    "half",
+                    "Half",
+                    date(2026, 10, 1),
+                    date(2026, 10, 31),
+                ),
+            ],
+        )
+        .into_any_element()
+}
+
+#[gpui::test]
+fn a_roadmap_draws_only_what_falls_in_its_months(cx: &mut TestAppContext) {
+    let (_, cx) = desk(roadmap, cx);
+    assert!(
+        cx.debug_bounds("initiative early").is_none(),
+        "it ended before the span"
+    );
+    let map = cx.debug_bounds("roadmap").expect("the roadmap draws");
+    let half = cx.debug_bounds("initiative half").expect("October draws");
+    let share = (half.left() - map.left()) / map.size.width;
+    assert!(
+        (share - 30.0 / 61.0).abs() < 0.01,
+        "October starts 30 of 61 days in: {share}"
+    );
+}

src/project/workload.rs

@@ -0,0 +1,152 @@
+use gpui::{
+    App, ElementId, InteractiveElement, IntoElement, ParentElement, RenderOnce, SharedString,
+    Styled, Window, div, relative,
+};
+
+use super::work::Person;
+use crate::{
+    data_display::Avatar,
+    theme::{ActiveTheme, AvatarSize, TextSize},
+    typography::{Ellipsis, tabular},
+};
+
+/// Work someone has against what they can take, in one unit, as points.
+#[derive(Clone, Debug, PartialEq)]
+pub struct Load {
+    pub person: Person,
+    pub assigned: f32,
+    pub capacity: f32,
+}
+
+impl Load {
+    pub fn new(person: Person, assigned: f32, capacity: f32) -> Self {
+        assert!(
+            assigned.is_finite() && assigned >= 0.0,
+            "{} has {assigned} assigned",
+            person.name
+        );
+        assert!(
+            capacity.is_finite() && capacity > 0.0,
+            "{} can take {capacity}",
+            person.name
+        );
+        Self {
+            person,
+            assigned,
+            capacity,
+        }
+    }
+
+    /// Past what they can take.
+    pub fn over(&self) -> bool {
+        self.assigned > self.capacity
+    }
+}
+
+/// Who carries how much: each person with a bar of their work against what they can take, red past it, and the two counts.
+#[derive(IntoElement)]
+pub struct WorkloadView {
+    id: ElementId,
+    loads: Vec<Load>,
+    unit: SharedString,
+}
+
+impl WorkloadView {
+    /// Loads counted in `unit`, as "pts" or "h".
+    pub fn new(
+        id: impl Into<ElementId>,
+        loads: impl IntoIterator<Item = Load>,
+        unit: impl Into<SharedString>,
+    ) -> Self {
+        let loads: Vec<Load> = loads.into_iter().collect();
+        for (ix, load) in loads.iter().enumerate() {
+            let twice = loads[..ix]
+                .iter()
+                .any(|other| other.person.key == load.person.key);
+            assert!(!twice, "workload: {} twice", load.person.key);
+        }
+        Self {
+            id: id.into(),
+            loads,
+            unit: unit.into(),
+        }
+    }
+}
+
+impl RenderOnce for WorkloadView {
+    fn render(self, _: &mut Window, cx: &mut App) -> impl IntoElement {
+        let theme = cx.theme();
+        let colors = &theme.colors;
+        let rows = self.loads.into_iter().map(|load| {
+            let over = load.over();
+            let fill = if over {
+                colors.danger
+            } else {
+                colors.hue(0, "workload")
+            };
+            let share = (load.assigned / load.capacity).min(1.0);
+            let count = format!("{:.0} / {:.0} {}", load.assigned, load.capacity, self.unit);
+            let key = load.person.key.clone();
+            div()
+                .debug_selector(move || format!("load {key}"))
+                .flex()
+                .items_center()
+                .gap_3()
+                .child(
+                    div()
+                        .w(relative(0.4))
+                        .flex_none()
+                        .flex()
+                        .items_center()
+                        .gap_2()
+                        .child(
+                            Avatar::new(
+                                (self.id.clone(), format!("who-{}", load.person.key)),
+                                load.person.name.clone(),
+                            )
+                            .size(AvatarSize::Xs),
+                        )
+                        .child(
+                            div()
+                                .flex_1()
+                                .min_w_0()
+                                .child(Ellipsis::new(load.person.name)),
+                        ),
+                )
+                .child(
+                    div()
+                        .flex_1()
+                        .h_1p5()
+                        .relative()
+                        .rounded_full()
+                        .bg(colors.sunken)
+                        .child(
+                            div()
+                                .absolute()
+                                .left_0()
+                                .top_0()
+                                .bottom_0()
+                                .w(relative(share))
+                                .rounded_full()
+                                .bg(fill),
+                        ),
+                )
+                .child(
+                    tabular(div())
+                        .w_20()
+                        .flex_none()
+                        .flex()
+                        .justify_end()
+                        .text_size(theme.text_size(TextSize::Sm))
+                        .text_color(if over { colors.danger } else { colors.fg_muted })
+                        .child(count),
+                )
+        });
+        div()
+            .debug_selector(|| "workload".into())
+            .flex()
+            .flex_col()
+            .gap_3()
+            .children(rows.collect::<Vec<_>>())
+    }
+}