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sources as svg layers

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This commit is contained in:
Gwendolyn 2023-12-07 00:53:56 +01:00
parent 83dfdec90f
commit 1feb608106
1 changed files with 30 additions and 5 deletions
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33
src/c3nav/editor/static/editor/js/editor.js
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@ -94,13 +94,37 @@ editor = {
editor._sources_control = L.control.layers([], [], { autoZIndex: false });
c3nav_api.get('mapdata/sources')
.then(sources => {
var source;
.then(async sources => {
const svg_promises = [];
for (var i = 0; i < sources.length; i++) {
source = sources[i];
const source = sources[i];
editor.sources[source.id] = source;
source.layer = L.imageOverlay('/editor/sourceimage/' + source.name, L.GeoJSON.coordsToLatLngs(source.bounds), {opacity: 0.3});
editor._sources_control.addOverlay(source.layer, source.name);
editor._sources_control.addOverlay(source.layer, `${source.name} (image overlay)`);
source.svg_el = document.createElementNS("http://www.w3.org/2000/svg", "svg");
source.svg_el.setAttribute('xmlns', "http://www.w3.org/2000/svg");
source.svg_layer = L.svgOverlay(source.svg_el, L.GeoJSON.coordsToLatLngs(source.bounds), {opacity: 0.3});
editor._sources_control.addOverlay(source.svg_layer, `${source.name} (svg overlay)`);
source.svg_layer.on('add', async function () {
let promise;
if (source.svg_promise) {
promise = source.svg_promise;
} else {
source.svg_promise = promise = fetch(`/editor/sourceimage/${source.name}`)
.then(r => {
if (!r.ok) {
throw 'could not load source svg';
}
return r.text();
});
}
let src = await promise;
const root = (new DOMParser).parseFromString(src, 'image/svg+xml').documentElement;
for (const attr of root.attributes) {
source.svg_el.attributes.setNamedItem(attr.cloneNode(true));
}
source.svg_el.replaceChildren(...root.children);
})
}
if (sources.length) editor._sources_control.addTo(editor.map);
})
@ -435,6 +459,7 @@ editor = {
editor._source_image_layer.setBounds(bounds)
} else {
editor._source_image_layer = L.imageOverlay('/editor/sourceimage/'+content.find('[name=name]').val(), bounds, {opacity: 0.3, zIndex: 10000});
// TODO: svg support
editor._source_image_layer.addTo(editor.map);
if (content.find('[data-new]').length) {
editor.map.fitBounds(bounds, {padding: [30, 50]});