public void OnPointerUp(PointerEventData eventData)
{
if (eventData.button == PointerEventData.InputButton.Left)
{
dragging = false;
OnEndDragging?.Invoke(this);
}
}
private void OnMouseUp()
{
AdjustPointerID();
if (opStatus == "down")
{
OnClicked.SC(dragFrom.x, dragFrom.y);
}
else if (opStatus == "dragging")
{
OnEndDragging.SC(dragFrom.x, dragFrom.y, lastDraggingPos.x, lastDraggingPos.y);
}
opStatus = "default";
}
public void OnEndDrag(PointerEventData eventData)
{
_currentDragPoint = eventData.position;
UpdateDragDto();
OnEndDragging?.Invoke(_dragDto);
}
private void Update()
{
AdjustPointerID();
if (!CheckPointerRelativePosition(out Vector2 pt))
{
return;
}
if (opStatus == "scaling")
{
if (Input.touchCount == 0)
{
OnEndDragging.SC(dragFrom.x, dragFrom.y, lastDraggingPos.x, lastDraggingPos.y);
opStatus = "default";
}
else if (Input.touchCount == 1)
{
lastDraggingPos = pt;
opStatus = "dragging";
}
else
{
if (!CheckPointerRelativePosition(out Vector2 pt1, 1))
{
return;
}
var centreFrom = (pt0From + pt1From) / 2;
var centreTo = (pt1 + pt) / 2;
var dPos = centreTo - centreFrom;
draggingOffset += dPos;
lastDraggingPos = pt;
// 暂时屏蔽双指拖动效果，会影响缩放手势的位置计算
// OnDragging.SC(dragFrom.x, dragFrom.y, dragFrom.x + draggingOffset.x, dragFrom.y + draggingOffset.y);
var s = (pt1 - pt).magnitude / (pt1From - pt0From).magnitude;
totalScale *= s;
OnScaling.SC(totalScale, centreTo.x, centreTo.y);
pt0From = pt;
pt1From = pt1;
}
}
else if (Input.touchCount == 2)
{
if (!CheckPointerRelativePosition(out Vector2 pt1, 1))
{
return;
}
if (opStatus != "dragging")
{
lastDraggingPos = dragFrom = pt;
draggingOffset = Vector2.zero;
OnStartDragging.SC(dragFrom.x, dragFrom.y);
}
pt0From = pt;
pt1From = pt1;
totalScale = 1;
opStatus = "scaling";
var centreFrom = (pt0From + pt1From) / 2;
OnStartScaling.SC();
}
}
/// <summary>
/// Invokes the <see cref="OnEndDrag"/> event
/// </summary>
public void OnEndDrag(PointerEventData eventData)
{
OnEndDragging?.Invoke(eventData);
IsBeingMoved = false;
Cursor.visible = true;
}
