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Updated leaflet.ts to enable custom devicePixelRatio setting #199

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Updated leaflet.ts to enable custom devicePixelRatio setting #199

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8ba1724
Updated leaflet.ts to enable custom devicePixelRatio setting
chriscdn Jun 14, 2025
849fa9d
updated formatting for tests
chriscdn Jun 14, 2025
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7 changes: 6 additions & 1 deletion src/frontends/leaflet.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -58,13 +58,15 @@ export interface LeafletLayerOptions extends L.GridLayerOptions {
sources?: Record<string, SourceOptions>;
flavor?: string;
backgroundColor?: string;
devicePixelRatio?: number;
}

const leafletLayer = (options: LeafletLayerOptions = {}) => {
class LeafletLayer extends L.GridLayer {
public paintRules: PaintRule[];
public labelRules: LabelRule[];
public backgroundColor?: string;
public devicePixelRatio: number;

constructor(options: LeafletLayerOptions = {}) {
if (options.noWrap && !options.bounds)
Expand All @@ -88,6 +90,9 @@ const leafletLayer = (options: LeafletLayerOptions = {}) => {
this.backgroundColor = options.backgroundColor;
}

this.devicePixelRatio =
options.devicePixelRatio ?? window.devicePixelRatio;

this.lastRequestedZ = undefined;
this.tasks = options.tasks || [];

Expand All @@ -107,7 +112,7 @@ const leafletLayer = (options: LeafletLayerOptions = {}) => {
16,
this.onTilesInvalidated,
);
this.tileSize = 256 * window.devicePixelRatio;
this.tileSize = 256 * this.devicePixelRatio;
this.tileDelay = options.tileDelay || 3;
this.lang = options.lang;
}
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