protected override bool OnMotionNotifyEvent(Gdk.EventMotion evnt)
{
double dx = evnt.X;
double dy = evnt.Y;
if (MouseGrabNode != null)
{
if (MouseGrabNode.Draggable && evnt.State.HasFlag(Gdk.ModifierType.Button1Mask))
{
if (!dragging && (Math.Abs(DragStart.X - dx) > 5 || Math.Abs(DragStart.Y - dy) > 5))
{
dragging = true;
}
if (dragging)
{
var point = engine.TransformPoint(MouseGrabNode.Parent, dx, dy);
MouseGrabNode.X = point.X - DragOffset.X;
MouseGrabNode.Y = point.Y - DragOffset.Y;
QueueDraw();
}
}
else
{
var point = engine.TransformPoint(MouseGrabNode, evnt.X, evnt.Y);
MouseGrabNode.MouseMotion(point.X, point.Y, (ModifierType)evnt.State);
}
}
else
{
HoveredNode = engine.InputNodeAt(root, evnt.X, evnt.Y);
if (HoveredNode != null)
{
var point = engine.TransformPoint(HoveredNode, evnt.X, evnt.Y);
HoveredNode.MouseMotion(point.X, point.Y, (ModifierType)evnt.State);
}
}
return(base.OnMotionNotifyEvent(evnt));
}
