route - track conversion

gpx-rs/src/api/commands.rs

@@ -317,6 +317,11 @@ pub fn style<H: History>(
     )
 }
 
+/// Converts the selected routes to tracks, or the selected tracks or segments to routes.
+pub fn convert<H: History>(engine: &mut Engine<H>) -> Outcome {
+    edit(engine, Command::Convert(engine::Convert))
+}
+
 pub fn new_route<H: History>(engine: &mut Engine<H>) -> Outcome {
     edit(engine, Command::NewRoute(engine::NewRoute))
 }

gpx-rs/src/engine/command/edit/convert.rs

@@ -0,0 +1,128 @@
+use std::{collections::HashSet, rc::Rc};
+
+use crate::{Apply, CommandError, FileId, Route, Selection, State, Track};
+
+/// Converts the selected routes to tracks, or the selected tracks or segments to routes, in their
+/// file:
+///
+/// - a route becomes a track with its segment. The new tracks go before the other tracks, right
+///   after the routes;
+/// - a track becomes one route per segment, as a route has a single segment, and goes away. A
+///   selected segment becomes a route and leaves its track, which stays even if it has no segment
+///   left. The routes have the information of their track, and go after the other routes.
+///
+/// The segments keep their ids, the new routes and tracks are selected. There is nothing to do
+/// for the other selections, or for tracks without segments.
+#[derive(Debug)]
+pub struct Convert;
+
+impl Apply for Convert {
+    fn apply(self, state: &mut State) -> Result<(), CommandError> {
+        let selection = state.selection.clone();
+        let next = match &selection {
+            Selection::Route { file_id, rte_ids } => {
+                let file = Rc::make_mut(
+                    state
+                        .files
+                        .get_mut(file_id)
+                        .ok_or(CommandError::NothingToDo)?,
+                );
+                let (converted, kept) = std::mem::take(&mut file.rte)
+                    .into_iter()
+                    .partition::<Vec<_>, _>(|rte| rte_ids.contains(&rte.id));
+                file.rte = kept;
+                let tracks: Vec<Track> = converted
+                    .into_iter()
+                    .map(|rte| Track {
+                        id: Default::default(),
+                        info: rte.info,
+                        trkseg: vec![rte.seg],
+                    })
+                    .collect();
+                let trk_ids: HashSet<_> = tracks.iter().map(|trk| trk.id).collect();
+                file.trk.splice(0..0, tracks);
+                Selection::Track {
+                    file_id: *file_id,
+                    trk_ids,
+                }
+            }
+            Selection::Track { file_id, trk_ids } => {
+                let file = Rc::make_mut(
+                    state
+                        .files
+                        .get_mut(file_id)
+                        .ok_or(CommandError::NothingToDo)?,
+                );
+                let (converted, kept) = std::mem::take(&mut file.trk)
+                    .into_iter()
+                    .partition::<Vec<_>, _>(|trk| trk_ids.contains(&trk.id));
+                file.trk = kept;
+                let routes = converted.into_iter().flat_map(|trk| {
+                    trk.trkseg.into_iter().map(move |seg| Route {
+                        id: Default::default(),
+                        info: trk.info.clone(),
+                        seg,
+                    })
+                });
+                add_routes(&mut file.rte, *file_id, routes)
+            }
+            Selection::TrackSegment {
+                file_id,
+                trk_id,
+                trkseg_ids,
+            } => {
+                let file = Rc::make_mut(
+                    state
+                        .files
+                        .get_mut(file_id)
+                        .ok_or(CommandError::NothingToDo)?,
+                );
+                let trk = file
+                    .trk
+                    .iter_mut()
+                    .find(|trk| trk.id == *trk_id)
+                    .ok_or(CommandError::NothingToDo)?;
+                let (converted, kept) = std::mem::take(&mut trk.trkseg)
+                    .into_iter()
+                    .partition::<Vec<_>, _>(|seg| trkseg_ids.contains(&seg.id));
+                trk.trkseg = kept;
+                let info = trk.info.clone();
+                let routes = converted.into_iter().map(|seg| Route {
+                    id: Default::default(),
+                    info: info.clone(),
+                    seg,
+                });
+                add_routes(&mut file.rte, *file_id, routes)
+            }
+            Selection::Empty
+            | Selection::File { .. }
+            | Selection::Waypoints { .. }
+            | Selection::Waypoint { .. } => return Err(CommandError::NothingToDo),
+        };
+        let empty = match &next {
+            Selection::Route { rte_ids, .. } => rte_ids.is_empty(),
+            Selection::Track { trk_ids, .. } => trk_ids.is_empty(),
+            _ => true,
+        };
+        if empty {
+            // nothing was converted (the changed copy of the file is dropped)
+            return Err(CommandError::NothingToDo);
+        }
+        *state.selection = next;
+        Ok(())
+    }
+}
+
+/// Adds the routes after the other routes, and gives the selection of them.
+fn add_routes(
+    rte: &mut Vec<Route>,
+    file_id: FileId,
+    routes: impl Iterator<Item = Route>,
+) -> Selection {
+    let start = rte.len();
+    rte.extend(routes);
+    Selection::Route {
+        file_id,
+        rte_ids: rte[start..].iter().map(|rte| rte.id).collect(),
+    }
+}

gpx-rs/src/engine/command/edit/mod.rs

@@ -1,9 +1,11 @@
+mod convert;
 mod metadata;
 mod new_route;
 mod new_track;
 mod new_track_segment;
 mod style;
 
+pub use convert::*;
 pub use metadata::*;
 pub use new_route::*;
 pub use new_track::*;

gpx-rs/src/engine/command/mod.rs

@@ -33,6 +33,7 @@ pub enum Command<'a> {
     Move(Move),
     DeleteAll(DeleteAll),
     DeleteWaypoint(DeleteWaypoint),
+    Convert(Convert),
     Metadata(Metadata<'a>),
     Style(Style<'a>),
     NewRoute(NewRoute),
@@ -69,6 +70,7 @@ impl Apply for Command<'_> {
             Command::Move(c) => c.apply(state),
             Command::DeleteAll(c) => c.apply(state),
             Command::DeleteWaypoint(c) => c.apply(state),
+            Command::Convert(c) => c.apply(state),
             Command::Metadata(c) => c.apply(state),
             Command::Style(c) => c.apply(state),
             Command::NewRoute(c) => c.apply(state),

gpx-rs/src/engine/command/routes_tests.rs

@@ -3,9 +3,9 @@
 use std::rc::Rc;
 
 use crate::{
-    Apply, Clean, CleanType, Clipboard, ClipboardContent, CommandError, Crop, Delete, Duplicate,
-    Extract, File, FileId, LngLat, LngLatBounds, Merge, MergeType, Metadata, Move, MoveTarget,
-    Paste, Reverse, RouteId, SegmentIndex, Selection, Split, SplitType, Style,
+    Apply, Clean, CleanType, Clipboard, ClipboardContent, CommandError, Convert, Crop, Delete,
+    Duplicate, Extract, File, FileId, LngLat, LngLatBounds, Merge, MergeType, Metadata, Move,
+    MoveTarget, Paste, Reverse, RouteId, SegmentIndex, Selection, Split, SplitType, Style,
     engine::command::fixture::Fixture, parse,
 };
 
@@ -602,3 +602,83 @@ fn test_reverse_a_route_and_the_routes_of_a_file() {
     assert_eq!(file.rte[0].id, before.rte[1].id);
     assert_eq!(file.trk[0].id, before.trk[1].id);
 }
+
+#[test]
+fn test_convert_routes_to_tracks_and_back() {
+    let (mut fx, id) = fixture();
+    let before = file(&fx, id).clone();
+
+    // a route becomes a track, first among the tracks, with its segment and its information
+    fx.selection = routes(&fx, id, &[1]);
+    Convert.apply(&mut fx.state()).unwrap();
+    let converted = file(&fx, id);
+    assert_eq!((converted.rte.len(), converted.trk.len()), (1, 3));
+    assert_eq!(converted.trk[0].info, before.rte[1].info);
+    assert_eq!(converted.trk[0].trkseg.len(), 1);
+    assert_eq!(converted.trk[0].trkseg[0].id, before.rte[1].seg.id);
+    assert_eq!(
+        fx.selection,
+        Selection::Track {
+            file_id: id,
+            trk_ids: [converted.trk[0].id].into()
+        }
+    );
+
+    // and back: a route again, after the other routes
+    Convert.apply(&mut fx.state()).unwrap();
+    let back = file(&fx, id);
+    assert_eq!((back.rte.len(), back.trk.len()), (2, 2));
+    assert_eq!(back.rte[1].seg.id, before.rte[1].seg.id);
+    assert_eq!(back.rte[1].info, before.rte[1].info);
+    assert!(
+        matches!(&fx.selection, Selection::Route { rte_ids, .. } if rte_ids.contains(&back.rte[1].id))
+    );
+}
+
+#[test]
+fn test_convert_a_track_to_one_route_per_segment() {
+    let (mut fx, id) = fixture();
+    let track = file(&fx, id).trk[0].clone();
+    assert_eq!(track.trkseg.len(), 2);
+    fx.selection = Selection::Track {
+        file_id: id,
+        trk_ids: [track.id].into(),
+    };
+    Convert.apply(&mut fx.state()).unwrap();
+    let converted = file(&fx, id);
+    assert_eq!((converted.rte.len(), converted.trk.len()), (4, 1));
+    for (route, segment) in converted.rte[2..].iter().zip(&track.trkseg) {
+        assert_eq!(route.seg.id, segment.id);
+        assert_eq!(route.info, track.info);
+    }
+    assert!(matches!(&fx.selection, Selection::Route { rte_ids, .. } if rte_ids.len() == 2));
+}
+
+#[test]
+fn test_convert_segments_to_routes_keeps_their_track() {
+    let (mut fx, id) = fixture();
+    let track = file(&fx, id).trk[1].clone();
+    fx.selection = Selection::TrackSegment {
+        file_id: id,
+        trk_id: track.id,
+        trkseg_ids: [track.trkseg[0].id, track.trkseg[1].id].into(),
+    };
+    Convert.apply(&mut fx.state()).unwrap();
+    let converted = file(&fx, id);
+    assert_eq!((converted.rte.len(), converted.trk.len()), (4, 2));
+    assert!(converted.trk[1].trkseg.is_empty());
+    assert_eq!(converted.rte[2].seg.id, track.trkseg[0].id);
+
+    // nothing to convert otherwise
+    for selection in [
+        whole(id),
+        Selection::Empty,
+        Selection::Waypoints { file_id: id },
+    ] {
+        fx.selection = selection;
+        assert_eq!(
+            Convert.apply(&mut fx.state()),
+            Err(CommandError::NothingToDo)
+        );
+    }
+}

tauri/src/commands/edit.rs

@@ -38,6 +38,11 @@ pub fn style(
     state.run(move |e| api::style(e, color.as_deref(), opacity, width))
 }
 
+#[tauri::command(async)]
+pub fn convert(state: State<AppState>) -> api::Outcome {
+    state.run(api::convert)
+}
+
 #[tauri::command(async)]
 pub fn new_route(state: State<AppState>) -> api::Outcome {
     state.run(api::new_route)

tauri/src/lib.rs

@@ -135,6 +135,7 @@ fn register_commands<R: tauri::Runtime>(builder: tauri::Builder<R>) -> tauri::Bu
         // edits and tools
         edit::metadata,
         edit::style,
+        edit::convert,
         edit::new_route,
         edit::new_track,
         edit::new_track_segment,

wasm/src/command/edit.rs

@@ -18,6 +18,12 @@ pub fn style(color: Option<String>, opacity: Option<f64>, width: Option<f64>) ->
     run(|e| api::style(e, color.as_deref(), opacity, width))
 }
 
+/// Converts the selected routes to tracks, or the selected tracks or segments to routes.
+#[wasm_bindgen]
+pub fn convert() -> Outcome {
+    run(api::convert)
+}
+
 #[wasm_bindgen]
 pub fn new_route() -> Outcome {
     run(api::new_route)

website/src/lib/components/Menu.svelte

@@ -48,6 +48,7 @@
         Maximize2,
         Minimize2,
         FolderX,
+        ArrowRightLeft,
     } from '@lucide/svelte';
     import { map } from '$lib/components/map/map';
     import { editMetadata } from '$lib/components/file-list/metadata/utils.svelte';
@@ -327,6 +328,19 @@
                                 {i18n._('menu.new_segment')}
                             </Menubar.Item>
                         {/if}
+                        {#if $selection.type === 'route' || $selection.type === 'track' || $selection.type === 'segment'}
+                            {#if $selection.type !== 'track'}
+                                <Menubar.Separator />
+                            {/if}
+                            <Menubar.Item onclick={() => engine.convert()}>
+                                <ArrowRightLeft size="16" />
+                                {i18n._(
+                                    $selection.type === 'route'
+                                        ? 'menu.convert_to_track'
+                                        : 'menu.convert_to_route'
+                                )}
+                            </Menubar.Item>
+                        {/if}
                     {/if}
                     <Menubar.Separator />
                     <Menubar.Item onclick={() => engine.selectAll()} disabled={noFiles}>

website/src/lib/components/file-list/FileListNodeLabel.svelte

@@ -19,6 +19,7 @@
         FileStack,
         FileX,
         Route,
+        ArrowRightLeft,
     } from '@lucide/svelte';
     import { getContext, untrack } from 'svelte';
     import { i18n } from '$lib/i18n/i18n.svelte';
@@ -289,6 +290,14 @@
                     <Plus size="16" />
                     {i18n._('menu.new_segment')}
                 </ContextMenu.Item>
+            {/if}
+            {#if isPath || node.type === 'segment'}
+                <ContextMenu.Item onclick={() => engine.convert()}>
+                    <ArrowRightLeft size="16" />
+                    {i18n._(
+                        node.type === 'route' ? 'menu.convert_to_track' : 'menu.convert_to_route'
+                    )}
+                </ContextMenu.Item>
                 <ContextMenu.Separator />
             {/if}
         {/if}

website/src/lib/engine/backend/tauri.ts

@@ -83,6 +83,7 @@ export async function createTauriBackend(): Promise<Backend> {
             }),
         metadata: (name, desc) => invoke('metadata', { name, desc }),
         style: (color, opacity, width) => invoke('style', { color, opacity, width }),
+        convert: () => invoke('convert'),
         new_route: () => invoke('new_route'),
         new_track: () => invoke('new_track'),
         new_track_segment: () => invoke('new_track_segment'),

website/src/lib/engine/backend/types.ts

@@ -174,6 +174,7 @@ export interface Backend {
     move_elements(what: Selection, to: MoveTarget): Promise<Outcome>;
     metadata(name: string, desc: string): Promise<Outcome>;
     style(color?: string, opacity?: number, width?: number): Promise<Outcome>;
+    convert(): Promise<Outcome>;
     new_route(): Promise<Outcome>;
     new_track(): Promise<Outcome>;
     new_track_segment(): Promise<Outcome>;

website/src/lib/engine/backend/wasm.ts

@@ -79,6 +79,7 @@ export async function createWasmBackend(): Promise<Backend> {
         move_elements: lift(w.move_elements),
         metadata: lift(w.metadata),
         style: lift(w.style),
+        convert: lift(w.convert),
         new_route: lift(w.new_route),
         new_track: lift(w.new_track),
         new_track_segment: lift(w.new_track_segment),

website/src/lib/engine/engine.ts

@@ -365,6 +365,14 @@ class Engine {
 
     // Edits of the selection
 
+    /**
+     * Converts the selected routes to tracks, or the selected tracks or segments to routes (one
+     * per segment), which are selected. Resolves to `false` when there is nothing to convert.
+     */
+    convert() {
+        return this.run((b) => b.convert());
+    }
+
     /** Adds an empty route to the selected files. */
     newRoute() {
         return this.run((b) => b.new_route());

website/src/locales/en.json

@@ -12,6 +12,8 @@
         "new_file": "New file",
         "new_track": "New track",
         "new_route": "New route",
+        "convert_to_route": "Convert to route",
+        "convert_to_track": "Convert to track",
         "new_segment": "New segment",
         "open": "Open...",
         "open_folder": "Open folder...",