protected override void MouseMove(MapDocument document, MapViewport viewport, OrthographicCamera camera, ViewportEvent e)
{
if (e.Dragging || e.Button == MouseButtons.Left)
{
return;
}
var point = camera.ScreenToWorld(e.X, e.Y);
point = camera.Flatten(point);
IDraggable drag = null;
foreach (var state in States)
{
var drags = state.GetDraggables().ToList();
drags.Add(state);
foreach (var draggable in drags)
{
if (draggable.CanDrag(document, viewport, camera, e, point))
{
drag = draggable;
break;
}
}
if (drag != null)
{
break;
}
}
if (drag != CurrentDraggable)
{
CurrentDraggable?.Unhighlight(document, viewport);
CurrentDraggable = drag;
CurrentDraggable?.Highlight(document, viewport);
}
}
private void DragObject_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
IDraggable millerItem = (sender as Control).FindParentType <IDraggable>();
if (millerItem != null)
{
this._isDragging = true;
this.Cursor = Cursors.SizeNS;
millerItem.Highlight();
}
}
}