protected onGhostPointerMove()

in src/canvastools/ts/CanvasTools/Region/Path/AnchorsElement.ts [214:244]

• 28 lines of code
• 8 McCabe index (conditional complexity)

    protected onGhostPointerMove(e: PointerEvent) {
        if (this.isModifyRegionOnlyModeEnabled(e) && this.activeAnchorIndex !== 0) {
            const p = this.getActiveAnchorPoint(e);
            let dist: number = Number.MAX_VALUE;
            let index: number = -1;
            this.regionData.points.forEach((point, i) => {
                const d = p.squareDistanceToPoint(point);
                if (d < dist) {
                    dist = d;
                    index = i;
                }
            });

            const swapToDelete: boolean = dist < AnchorsElement.ANCHOR_POINT_LINE_SWITCH_THRESHOLD;

            if (this.activeAnchorIndex <= 0 && !swapToDelete) {
                this.ghostAnchorAction = GhostAnchorAction.Add;
                this.activeAnchorIndex = -1;
            } else if (
                this.regionData.points.length > AnchorsElement.MIN_NUMBERS_OF_POINTS_PER_POLYGON &&
                swapToDelete
            ) {
                this.activeAnchorIndex = index + 1;
                this.ghostAnchorAction = GhostAnchorAction.Delete;
            }
        } else {
            this.ghostAnchorAction = GhostAnchorAction.None;
        }

        super.onGhostPointerMove(e);
    }