1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138

use crate::app::App;
use crate::common::ColorDiscrete;
use crate::layer::{Layer, LayerOutcome};
use map_model::{PathConstraints, PathStep};
use widgetry::{
    Btn, Checkbox, Drawable, EventCtx, GfxCtx, HorizontalAlignment, Key, Outcome, Panel, TextExt,
    VerticalAlignment, Widget,
};

pub struct TransitNetwork {
    panel: Panel,
    unzoomed: Drawable,
    zoomed: Drawable,
}

impl Layer for TransitNetwork {
    fn name(&self) -> Option<&'static str> {
        Some("transit network")
    }
    fn event(
        &mut self,
        ctx: &mut EventCtx,
        app: &mut App,
        minimap: &Panel,
    ) -> Option<LayerOutcome> {
        self.panel.align_above(ctx, minimap);
        match self.panel.event(ctx) {
            Outcome::Clicked(x) => match x.as_ref() {
                "close" => {
                    return Some(LayerOutcome::Close);
                }
                _ => unreachable!(),
            },
            Outcome::Changed => {
                *self = TransitNetwork::new(
                    ctx,
                    app,
                    self.panel.is_checked("show all routes"),
                    self.panel.is_checked("show buses"),
                    self.panel.is_checked("show trains"),
                );
                self.panel.align_above(ctx, minimap);
            }
            _ => {}
        }
        None
    }
    fn draw(&self, g: &mut GfxCtx, app: &App) {
        self.panel.draw(g);
        if g.canvas.cam_zoom < app.opts.min_zoom_for_detail {
            g.redraw(&self.unzoomed);
        } else {
            g.redraw(&self.zoomed);
        }
    }
    fn draw_minimap(&self, g: &mut GfxCtx) {
        g.redraw(&self.unzoomed);
    }
}

impl TransitNetwork {
    pub fn new(
        ctx: &mut EventCtx,
        app: &App,
        show_all_routes: bool,
        show_buses: bool,
        show_trains: bool,
    ) -> TransitNetwork {
        let map = &app.primary.map;
        // TODO Same color for both?
        let mut categories = vec![
            ("bus lanes / rails", app.cs.bus_layer),
            ("transit stops", app.cs.bus_layer),
        ];
        if show_all_routes {
            categories.push(("routes", app.cs.bus_layer));
        }
        let mut colorer = ColorDiscrete::new(app, categories);
        for l in map.all_lanes() {
            if l.is_bus() && show_buses {
                colorer.add_l(l.id, "bus lanes / rails");
            }
            if l.is_light_rail() && show_trains {
                colorer.add_l(l.id, "bus lanes / rails");
            }
        }
        for bs in map.all_bus_stops().values() {
            if !bs.is_train_stop && show_buses {
                colorer.add_bs(bs.id, "transit stops");
            }
            if bs.is_train_stop && show_trains {
                colorer.add_bs(bs.id, "transit stops");
            }
        }
        if show_all_routes {
            for br in map.all_bus_routes() {
                if !show_buses && br.route_type == PathConstraints::Bus {
                    continue;
                }
                if !show_trains && br.route_type == PathConstraints::Train {
                    continue;
                }
                for req in br.all_steps(map) {
                    if let Some(path) = map.pathfind(req) {
                        for step in path.get_steps() {
                            if let PathStep::Lane(l) = step {
                                colorer.add_l(*l, "routes");
                            }
                        }
                    }
                }
            }
        }
        let (unzoomed, zoomed, legend) = colorer.build(ctx);

        let panel = Panel::new(Widget::col(vec![
            Widget::row(vec![
                Widget::draw_svg(ctx, "system/assets/tools/layers.svg"),
                "Transit network".draw_text(ctx),
                Btn::plaintext("X")
                    .build(ctx, "close", Key::Escape)
                    .align_right(),
            ]),
            Checkbox::switch(ctx, "show all routes", None, show_all_routes),
            Checkbox::switch(ctx, "show buses", None, show_buses),
            Checkbox::switch(ctx, "show trains", None, show_trains),
            legend,
        ]))
        .aligned(HorizontalAlignment::Right, VerticalAlignment::Center)
        .build(ctx);

        TransitNetwork {
            panel,
            unzoomed,
            zoomed,
        }
    }
}