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use std::collections::{BTreeMap, BTreeSet};
use abstutil::Timer;
use geom::Distance;
use map_model::osm::RoadRank;
use map_model::{Block, Perimeter};
use widgetry::mapspace::{ObjectID, World, WorldOutcome};
use widgetry::{
Color, Drawable, EventCtx, GeomBatch, GfxCtx, HorizontalAlignment, Key, Line, Outcome, Panel,
SimpleState, State, Text, TextExt, VerticalAlignment, Widget,
};
use crate::app::{App, Transition};
use crate::debug::polygons;
const COLORS: [Color; 6] = [
Color::BLUE,
Color::YELLOW,
Color::GREEN,
Color::PURPLE,
Color::PINK,
Color::ORANGE,
];
const MODIFIED: Color = Color::RED;
const TO_MERGE: Color = Color::CYAN;
pub struct Blockfinder {
panel: Panel,
id_counter: usize,
blocks: BTreeMap<Obj, Block>,
world: World<Obj>,
to_merge: BTreeSet<Obj>,
partitions: Vec<Vec<Obj>>,
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
struct Obj(usize);
impl ObjectID for Obj {}
impl Blockfinder {
pub fn new_state(ctx: &mut EventCtx, app: &App) -> Box<dyn State<App>> {
let mut state = Blockfinder {
panel: make_panel(ctx),
id_counter: 0,
blocks: BTreeMap::new(),
world: World::bounded(app.primary.map.get_bounds()),
to_merge: BTreeSet::new(),
partitions: Vec::new(),
};
ctx.loading_screen("calculate all blocks", |ctx, timer| {
timer.start("find single blocks");
let perimeters = Perimeter::find_all_single_blocks(&app.primary.map);
timer.stop("find single blocks");
state.add_blocks_with_coloring(ctx, app, perimeters, timer);
});
state.world.initialize_hover(ctx);
Box::new(state)
}
fn new_id(&mut self) -> Obj {
let id = Obj(self.id_counter);
self.id_counter += 1;
id
}
fn add_block(&mut self, ctx: &mut EventCtx, app: &App, id: Obj, color: Color, block: Block) {
let mut hovered = GeomBatch::from(vec![(color.alpha(0.5), block.polygon.clone())]);
if let Ok(outline) = block.polygon.to_outline(Distance::meters(5.0)) {
hovered.push(Color::BLACK, outline);
}
for (idx, id) in block.perimeter.roads.iter().enumerate().skip(1) {
hovered.append(
Text::from(Line(format!("{}", idx)).fg(Color::RED))
.bg(Color::BLACK)
.render_autocropped(ctx)
.scale(1.0)
.centered_on(
id.get_outermost_lane(&app.primary.map)
.lane_center_pts
.middle(),
),
);
}
let mut obj = self
.world
.add(id)
.hitbox(block.polygon.clone())
.draw_color(color.alpha(0.5))
.draw_hovered(hovered)
.clickable();
if self.to_merge.contains(&id) {
obj = obj.hotkey(Key::Space, "remove from merge set")
} else {
obj = obj.hotkey(Key::Space, "add to merge set")
}
obj.build(ctx);
self.blocks.insert(id, block);
}
fn add_blocks_with_coloring(
&mut self,
ctx: &mut EventCtx,
app: &App,
perimeters: Vec<Perimeter>,
timer: &mut Timer,
) {
let mut colors = Perimeter::calculate_coloring(&perimeters, COLORS.len())
.unwrap_or_else(|| (0..perimeters.len()).collect());
timer.start_iter("blockify", perimeters.len());
let mut blocks = Vec::new();
for perimeter in perimeters {
timer.next();
let mut copy = perimeter.clone();
copy.collapse_deadends();
if let Err(err) = copy.to_block(&app.primary.map) {
error!(
"A perimeter won't blockify after collapsing deadends: {}",
err
);
continue;
}
match perimeter.to_block(&app.primary.map) {
Ok(block) => {
blocks.push(block);
}
Err(err) => {
warn!("Failed to make a block from a perimeter: {}", err);
colors.remove(blocks.len());
}
}
}
for (block, color_idx) in blocks.into_iter().zip(colors.into_iter()) {
let id = self.new_id();
self.add_block(ctx, app, id, COLORS[color_idx % COLORS.len()], block);
}
}
}
impl State<App> for Blockfinder {
fn event(&mut self, ctx: &mut EventCtx, app: &mut App) -> Transition {
if let Outcome::Clicked(x) = self.panel.event(ctx) {
match x.as_ref() {
"close" => {
return Transition::Pop;
}
"Merge" => {
let mut perimeters = Vec::new();
for id in std::mem::take(&mut self.to_merge) {
perimeters.push(self.blocks.remove(&id).unwrap().perimeter);
self.world.delete(id);
}
let results = Perimeter::merge_all(&app.primary.map, perimeters, true);
let debug = results.len() > 1;
for perimeter in results {
let id = self.new_id();
let block = perimeter
.to_block(&app.primary.map)
.expect("Merged perimeter broke the polygon");
if debug {
self.to_merge.insert(id);
self.add_block(ctx, app, id, TO_MERGE, block);
} else {
self.add_block(ctx, app, id, MODIFIED, block);
}
}
return Transition::Keep;
}
"Collapse dead-ends" => {
for id in std::mem::take(&mut self.to_merge) {
let mut perimeter = self.blocks.remove(&id).unwrap().perimeter;
perimeter.collapse_deadends();
let block = perimeter
.to_block(&app.primary.map)
.expect("collapsing deadends broke the polygon shape");
self.world.delete_before_replacement(id);
self.add_block(ctx, app, id, MODIFIED, block);
}
}
"Classify neighborhoods (but don't merge)" | "Auto-merge all neighborhoods" => {
let perimeters: Vec<Perimeter> = std::mem::take(&mut self.blocks)
.into_iter()
.map(|(_, b)| b.perimeter)
.collect();
let map = &app.primary.map;
let partitions = Perimeter::partition_by_predicate(perimeters, |r| {
let road = map.get_r(r);
road.get_rank() == RoadRank::Local
});
self.id_counter = 0;
self.world = World::bounded(app.primary.map.get_bounds());
self.to_merge.clear();
self.partitions = Vec::new();
if x == "Auto-merge all neighborhoods" {
let mut merged = Vec::new();
for perimeters in partitions {
merged.extend(Perimeter::merge_all(
&app.primary.map,
perimeters,
false,
));
}
self.add_blocks_with_coloring(ctx, app, merged, &mut Timer::throwaway());
} else {
for (color_idx, perimeters) in partitions.into_iter().enumerate() {
let color = COLORS[color_idx % COLORS.len()];
let mut group = Vec::new();
for perimeter in perimeters {
if let Ok(block) = perimeter.to_block(map) {
let id = self.new_id();
self.add_block(ctx, app, id, color, block);
group.push(id);
}
}
self.partitions.push(group);
}
}
}
"Reset" => {
return Transition::Replace(Blockfinder::new_state(ctx, app));
}
_ => unreachable!(),
}
}
match self.world.event(ctx) {
WorldOutcome::Keypress("add to merge set", id) => {
self.to_merge.insert(id);
let block = self.blocks.remove(&id).unwrap();
self.world.delete_before_replacement(id);
self.add_block(ctx, app, id, TO_MERGE, block);
}
WorldOutcome::Keypress("remove from merge set", id) => {
self.to_merge.remove(&id);
let block = self.blocks.remove(&id).unwrap();
self.world.delete_before_replacement(id);
self.add_block(ctx, app, id, MODIFIED, block);
}
WorldOutcome::ClickedObject(id) => {
return Transition::Push(OneBlock::new_state(ctx, app, self.blocks[&id].clone()));
}
_ => {}
}
if ctx.redo_mouseover() {
if ctx.is_key_down(Key::LeftControl) {
if let Some(id) = self.world.get_hovering() {
if !self.to_merge.contains(&id) {
self.to_merge.insert(id);
let block = self.blocks.remove(&id).unwrap();
self.world.delete_before_replacement(id);
self.add_block(ctx, app, id, TO_MERGE, block);
}
}
}
}
Transition::Keep
}
fn draw(&self, g: &mut GfxCtx, _: &App) {
self.world.draw(g);
self.panel.draw(g);
if let Some(id) = self.world.get_hovering() {
let mut batch = GeomBatch::new();
for group in &self.partitions {
if group.contains(&id) {
for block in group {
if let Some(block) = self.blocks.get(block) {
batch.push(Color::RED.alpha(0.5), block.polygon.clone());
}
}
break;
}
}
batch.draw(g);
}
}
}
pub struct OneBlock {
block: Block,
draw: Drawable,
}
impl OneBlock {
pub fn new_state(ctx: &mut EventCtx, app: &App, block: Block) -> Box<dyn State<App>> {
let mut batch = GeomBatch::new();
batch.push(Color::RED.alpha(0.5), block.polygon.clone());
for r in &block.perimeter.interior {
batch.push(
Color::CYAN.alpha(0.5),
app.primary.map.get_r(*r).get_thick_polygon(),
);
}
let panel = Panel::new_builder(Widget::col(vec![
Widget::row(vec![
Line("Blockfinder").small_heading().into_widget(ctx),
ctx.style().btn_close_widget(ctx),
]),
"You can also hold LCtrl to quickly highlight".text_widget(ctx),
ctx.style()
.btn_outline
.text("Show perimeter in order")
.hotkey(Key::O)
.build_def(ctx),
ctx.style()
.btn_outline
.text("Debug polygon")
.hotkey(Key::D)
.build_def(ctx),
]))
.aligned(HorizontalAlignment::Center, VerticalAlignment::Top)
.build(ctx);
<dyn SimpleState<_>>::new_state(
panel,
Box::new(OneBlock {
block,
draw: batch.upload(ctx),
}),
)
}
}
impl SimpleState<App> for OneBlock {
fn on_click(
&mut self,
ctx: &mut EventCtx,
app: &mut App,
x: &str,
_: &mut Panel,
) -> Transition {
match x {
"close" => Transition::Pop,
"Show perimeter in order" => {
let mut items = Vec::new();
let map = &app.primary.map;
for road_side in &self.block.perimeter.roads {
let lane = road_side.get_outermost_lane(map);
items.push(polygons::Item::Polygon(lane.get_thick_polygon()));
}
return Transition::Push(polygons::PolygonDebugger::new_state(
ctx,
"side of road",
items,
None,
));
}
"Debug polygon" => {
return Transition::Push(polygons::PolygonDebugger::new_state(
ctx,
"pt",
self.block
.polygon
.clone()
.into_points()
.into_iter()
.map(polygons::Item::Point)
.collect(),
None,
));
}
_ => unreachable!(),
}
}
fn other_event(&mut self, ctx: &mut EventCtx, _: &mut App) -> Transition {
ctx.canvas_movement();
Transition::Keep
}
fn draw(&self, g: &mut GfxCtx, _: &App) {
g.redraw(&self.draw);
}
}
fn make_panel(ctx: &mut EventCtx) -> Panel {
Panel::new_builder(Widget::col(vec![
Widget::row(vec![
Line("Blockfinder").small_heading().into_widget(ctx),
ctx.style().btn_close_widget(ctx),
]),
"Click a block to examine.".text_widget(ctx),
"Press space to mark/unmark for merging".text_widget(ctx),
ctx.style()
.btn_outline
.text("Merge")
.hotkey(Key::M)
.build_def(ctx),
ctx.style()
.btn_outline
.text("Collapse dead-ends")
.hotkey(Key::D)
.build_def(ctx),
ctx.style()
.btn_outline
.text("Classify neighborhoods (but don't merge)")
.hotkey(Key::C)
.build_def(ctx),
ctx.style()
.btn_outline
.text("Auto-merge all neighborhoods")
.hotkey(Key::A)
.build_def(ctx),
ctx.style()
.btn_solid_destructive
.text("Reset")
.build_def(ctx),
]))
.aligned(HorizontalAlignment::Left, VerticalAlignment::Top)
.build(ctx)
}