fix(editor): crop editor cursor drift (#10727)

* fix(editor): do not scale cropping editor pointer offsets

* fix lint

* fix more lint

* fix drift related to image canvas scale
This commit is contained in:
David Luzar
2026-02-01 10:45:04 +01:00
committed by GitHub
parent b57f3e0096
commit d29fd62e41
+14 -7
View File
@@ -11,7 +11,6 @@ import {
pointDistance,
vector,
pointRotateRads,
vectorScale,
vectorFromPoint,
vectorSubtract,
vectorDot,
@@ -255,6 +254,7 @@ import {
handleFocusPointPointerDown,
handleFocusPointPointerUp,
maybeHandleArrowPointlikeDrag,
getUncroppedWidthAndHeight,
} from "@excalidraw/element";
import type { GlobalPoint, LocalPoint, Radians } from "@excalidraw/math";
@@ -9341,14 +9341,21 @@ class App extends React.Component<AppProps, AppState> {
this.imageCache.get(croppingElement.fileId)?.image;
if (image && !(image instanceof Promise)) {
const instantDragOffset = vectorScale(
vector(
pointerCoords.x - lastPointerCoords.x,
pointerCoords.y - lastPointerCoords.y,
),
Math.max(this.state.zoom.value, 2),
const uncroppedSize =
getUncroppedWidthAndHeight(croppingElement);
const instantDragOffset = vector(
pointerCoords.x - lastPointerCoords.x,
pointerCoords.y - lastPointerCoords.y,
);
// to reduce cursor:image drift, we need to take into account
// the canvas image element scaling so we can accurately
// track the pixels on movement
instantDragOffset[0] *=
image.naturalWidth / uncroppedSize.width;
instantDragOffset[1] *=
image.naturalHeight / uncroppedSize.height;
const [x1, y1, x2, y2, cx, cy] = getElementAbsoluteCoords(
croppingElement,
elementsMap,