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fix: separate desktop wheel and mobile pinch zoom

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gitprov
2026-08-14 15:45:03 +02:00
parent 45c7c6a292
commit a51b508118
6 changed files with 81 additions and 22 deletions
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src/boardDomain.ts
+6 -1
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@@ -8,7 +8,12 @@ export function clampBoardZoom(zoom: number) {
}
export function zoomFromWheel(currentZoom: number, deltaY: number) {
return clampBoardZoom(currentZoom - deltaY * 0.006)
return clampBoardZoom(currentZoom - deltaY * 0.0015)
}
export function zoomFromPinch(currentZoom: number, previousDistance: number, nextDistance: number) {
if (!Number.isFinite(previousDistance) || !Number.isFinite(nextDistance) || previousDistance <= 0 || nextDistance <= 0) return currentZoom
return clampBoardZoom(currentZoom * nextDistance / previousDistance)
}
export function moveBoardPoint(origin: { x: number; y: number }, screenDelta: { x: number; y: number }, zoom: number) {