protected internal override void OnMouseMove(object sender, MouseEventArgs e)
{
base.OnMouseMove(sender, e);
if (canvas.IsResizing || canvas.Layers[canvas.SelectedLayer].Locked)
{
return;
}
var query = canvas.SelectedLayer
.Where(x =>
x.Contains(new PointF(e.X / canvas.ZoomFactor, e.Y / canvas.ZoomFactor)))
.OrderBy(x => x.Z)
.LastOrDefault();
DragHandle handleQuery = null;
if (query != null)
{
if (!_moving)
{
canvas.Cursor = Cursors.Hand;
}
}
else
{
if (handleQuery == null)
{
canvas.Cursor = Cursors.Default;
}
}
if (Target != null && Target.Selected && !_resizing)
{
handleQuery = Target.Bounds.DragHandles
.Where(x => x.Contains(new PointF(e.X / canvas.ZoomFactor, e.Y / canvas.ZoomFactor)))
.LastOrDefault();
if (handleQuery != null)
{
_resizeHandle = handleQuery;
canvas.Cursor = resizeCursorMap[handleQuery.Anchor];
}
}
if (_moving)
{
var deltaX = e.X / canvas.ZoomFactor - Position1.X;
var deltaY = e.Y / canvas.ZoomFactor - Position1.Y;
Target.Move(deltaX, deltaY, canvas.Size);
Position1 = e.Location;
canvas.Invalidate();
}
else if (_resizing)
{
var nextPosition = PointF.Empty;
switch (_resizeHandle.Anchor)
{
case DragHandleAnchor.BottomCenter:
case DragHandleAnchor.TopCenter:
if (_fixedX == null)
{
_fixedX = Target.Bounds.Right;
}
nextPosition = new PointF((float)_fixedX, e.Y / canvas.ZoomFactor);
break;
case DragHandleAnchor.MiddleLeft:
case DragHandleAnchor.MiddleRight:
if (_fixedY == null)
{
_fixedY = Target.Bounds.Right;
}
nextPosition = new PointF(e.X / canvas.ZoomFactor, (float)_fixedY);
break;
default:
nextPosition = new PointF(e.X / canvas.ZoomFactor, e.Y / canvas.ZoomFactor);
break;
}
Target.Bounds = new Boundary(Position1, nextPosition);
canvas.Invalidate();
}
}
