Added a button that exports the trip table to a CSV file. (#1153)

* Added a button that exports the trip table to a CSV file.

* Fixed minor type issue in function

Author: dJonaitis

apps/game/src/sandbox/dashboards/trip_table.rs

@@ -1,11 +1,13 @@
 use std::collections::{BTreeSet, HashMap};
+use std::io::Write;
 
 use abstutil::prettyprint_usize;
 use geom::{Duration, Polygon, Time};
 use map_gui::tools::{checkbox_per_mode, color_for_mode};
 use sim::TripID;
 use synthpop::{TripEndpoint, TripMode};
 use widgetry::table::{Col, Filter, Table};
+use widgetry::tools::PopupMsg;
 use widgetry::{
     Color, EventCtx, Filler, GeomBatch, GfxCtx, Line, Outcome, Panel, Stash, State, TabController,
     Text, Toggle, Widget,
@@ -62,6 +64,11 @@ impl TripTable {
         let finished_trips_table = make_table_finished_trips(app);
         let finished_trips_content = Widget::col(vec![
             finished_trips_table.render(ctx, app),
+            ctx.style()
+                .btn_plain
+                .text("Export to CSV")
+                .build_def(ctx)
+                .align_bottom(),
             Filler::square_width(ctx, 0.15)
                 .named("preview")
                 .centered_horiz(),
@@ -123,6 +130,18 @@ impl State<App> for TripTable {
     fn event(&mut self, ctx: &mut EventCtx, app: &mut App) -> Transition {
         match self.panel.event(ctx) {
             Outcome::Clicked(x) => {
+                if x == "Export to CSV" {
+                    return Transition::Push(match export_trip_table(app) {
+                        Ok(path) => PopupMsg::new_state(
+                            ctx,
+                            "Data exported",
+                            vec![format!("Data exported to {}", path)],
+                        ),
+                        Err(err) => {
+                            PopupMsg::new_state(ctx, "Export failed", vec![err.to_string()])
+                        }
+                    });
+                }
                 if self.table_tabs.active_tab_idx() == 0 && self.finished_trips_table.clicked(&x) {
                     self.finished_trips_table
                         .replace_render(ctx, app, &mut self.panel);
@@ -698,3 +717,35 @@ fn make_table_unfinished_trips(app: &App) -> Table<App, UnfinishedTrip, Filters>
 
     table
 }
+
+fn export_trip_table(app: &App) -> anyhow::Result<String> {
+    let (finished, _) = produce_raw_data(app);
+    let path = format!(
+        "trip_table_{}_{}.csv",
+        app.primary.map.get_name().as_filename(),
+        app.primary.sim.time().as_filename()
+    );
+
+    let mut out = std::io::Cursor::new(Vec::new());
+    writeln!(
+        out,
+        "id,mode,modified,departure,duration,waiting_time,percent_waiting,duration_before"
+    )?;
+
+    for trip in finished {
+        writeln!(
+            out,
+            "{},{:?},{},{},{},{},{},{}",
+            trip.id.0,
+            trip.mode,
+            trip.modified,
+            trip.departure,
+            trip.duration_after.inner_seconds(),
+            trip.waiting.inner_seconds(),
+            trip.percent_waiting,
+            trip.duration_before.inner_seconds()
+        )?;
+    }
+
+    abstio::write_file(path, String::from_utf8(out.into_inner())?).map_err(anyhow::Error::from)
+}

widgetry_demo/src/lib.rs

@@ -14,7 +14,6 @@ pub fn main() {
     run(settings);
 }
 
-
 fn run(mut settings: Settings) {
     abstutil::logger::setup();
     settings = settings.read_svg(Box::new(abstio::slurp_bytes));
@@ -60,7 +59,7 @@ impl Demo {
     where
         F: Fn(usize) -> usize,
     {
-        Series{
+        Series {
             label: label.to_string(),
             color,
             pts: (0..(self.elapsed.inner_seconds() as usize))