protected void OnMouseUp(MouseUpEvent e)
{
GraphElement ce = e.target as GraphElement;
if (ce != null && !ce.IsMovable())
{
return;
}
if (m_Active)
{
if (CanStopManipulation(e))
{
var graphElement = target as GraphElement;
if (graphElement != null)
{
graphElement.UpdatePresenterPosition();
}
m_Active = false;
target.ReleaseMouse();
e.StopPropagation();
}
}
}
protected void OnMouseMove(MouseMoveEvent e)
{
GraphElement ce = e.target as GraphElement;
if (ce != null && !ce.IsMovable())
{
return;
}
if (m_Active)
{
Vector2 diff = e.localMousePosition - m_Start;
if (ce != null)
{
var targetScale = ce.transform.scale;
diff.x *= targetScale.x;
diff.y *= targetScale.y;
}
Rect rect = CalculatePosition(target.layout.x + diff.x, target.layout.y + diff.y, target.layout.width, target.layout.height);
if (target.IsLayoutManual())
{
target.SetLayout(rect);
}
else if (target.resolvedStyle.position == Position.Absolute)
{
target.style.left = rect.x;
target.style.top = rect.y;
}
e.StopPropagation();
}
}
protected void OnMouseDown(MouseDownEvent e)
{
if (m_Active)
{
e.StopImmediatePropagation();
return;
}
GraphElement ce = e.target as GraphElement;
if (ce != null && !ce.IsMovable())
{
return;
}
if (CanStartManipulation(e))
{
m_Start = e.localMousePosition;
m_Active = true;
target.CaptureMouse();
e.StopPropagation();
}
}