snapTarget method

PaneSnapTarget? snapTarget({ required int x, required int y, required int width, required int height, })

Returns a snap target if a pointer is near a split divider.

Implementation

PaneSnapTarget? snapTarget({
  required int x,
  required int y,
  required int width,
  required int height,
}) {
  if (!isValid) return null;
  if (width <= 0 || height <= 0) return null;

  final currentLayout = layout(width: width, height: height);

  for (final handle in currentLayout.splits.values) {
    if (handle.direction == PaneSplitDirection.vertical) {
      if (_isWithinHorizontalSnap(x, handle.boundaryX, snapThreshold) &&
          y >= handle.y &&
          y < handle.y + handle.height) {
        return PaneSnapTarget(
          splitId: handle.splitId,
          direction: handle.direction,
          alignment: x <= handle.boundaryX
              ? PaneSnapAlignment.before
              : PaneSnapAlignment.after,
        );
      }
    } else {
      if (_isWithinHorizontalSnap(y, handle.boundaryY, snapThreshold) &&
          x >= handle.x &&
          x < handle.x + handle.width) {
        return PaneSnapTarget(
          splitId: handle.splitId,
          direction: handle.direction,
          alignment: y <= handle.boundaryY
              ? PaneSnapAlignment.before
              : PaneSnapAlignment.after,
        );
      }
    }
  }
  return null;
}