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barsdeveloper
2021-09-09 18:06:49 +02:00
parent 6b8b52ff37
commit ccaad9b677
6 changed files with 202 additions and 61 deletions
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13
js/UEBlueprintDragScroll.js
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@@ -4,7 +4,8 @@ export default class UEBlueprintDragScroll extends UEBlueprintDrag {
constructor(scrolledEntity, options) {
super(scrolledEntity, options)
this.minZoom = options?.minZoom ?? -12
let self = this;
let self = this
this.mouseMoveHandler = function (e) {
let mousePosition = self.snapToGrid(e.clientX, e.clientY)
@@ -16,7 +17,8 @@ export default class UEBlueprintDragScroll extends UEBlueprintDrag {
// Reassign the position of mouse
self.mousePosition = mousePosition
};
}
this.mouseWheelHandler = function (e) {
e.preventDefault()
let zoomLevel = self.blueprintNode.getZoom()
@@ -24,10 +26,13 @@ export default class UEBlueprintDragScroll extends UEBlueprintDrag {
let scaleCorrection = 1 / self.blueprintNode.getScale()
const targetOffset = e.target.getBoundingClientRect()
const currentTargetOffset = e.currentTarget.getBoundingClientRect()
let offset = [e.offsetX + targetOffset.x * scaleCorrection - currentTargetOffset.x * scaleCorrection, e.offsetY + targetOffset.y * scaleCorrection - currentTargetOffset.y * scaleCorrection]
let offset = [
e.offsetX + targetOffset.x * scaleCorrection - currentTargetOffset.x * scaleCorrection,
e.offsetY + targetOffset.y * scaleCorrection - currentTargetOffset.y * scaleCorrection
]
self.blueprintNode.setZoom(zoomLevel, offset)
}
this.blueprintNode.getGridDOMElement().addEventListener('wheel', this.mouseWheelHandler, false)
this.blueprintNode.getGridDOMElement().parentElement.addEventListener('wheel', e => e.preventDefault())
}