public IMemento Clone()
{
var clone = new DrawLineMemento(Color, LineSize);
foreach (var loc in Locations)
{
clone.Locations.Add(loc);
}
return(clone);
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (e.Button != MouseButtons.Left)
{
return;
}
_startLoc = e.Location;
_holdMode = HoldMode.None;
switch (Mode)
{
case DrawMode.Pen:
_drawLine = new DrawLineMemento(Color, LineSize);
break;
case DrawMode.Highlighter:
_drawLine = new DrawLineMemento(HighlightColor, LineSize);
break;
}
}
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
if (e.Button != MouseButtons.Left)
{
return;
}
_holdMode = HoldMode.None;
switch (Mode)
{
case DrawMode.Pen:
case DrawMode.Highlighter:
if (_drawLine != null && _drawLine.CanDraw())
{
AddMemento(_drawLine);
_drawLine = null;
}
break;
}
Invalidate();
}