/// <summary>
/// Left mouse button is pressed
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
// Create new polygon, add it to the list
// and keep reference to it
//newPolygon = new DrawPolygon(e.X, e.Y, e.X + 1, e.Y + 1);
newPolygon = new DrawPolygon();
AddNewObject(drawArea, newPolygon);
newPolygon.Shape.Add(new Point(e.X, e.Y));//添加第一个点
lastX = e.X;
lastY = e.Y;
}
//public DrawPolygon(int x1, int y1, int x2, int y2) : base()
//{
// //pointArray = new PointList();
// shape.Add(new Point(x1, y1));
// shape.Add(new Point(x2, y2));
// Initialize();
//}
/// <summary>
/// Clone this instance
/// </summary>
public override DrawObject Clone()
{
DrawPolygon drawPolygon = new DrawPolygon();
foreach (Point p in this.shape)
{
drawPolygon.shape.Add(p);
}
FillDrawObjectFields(drawPolygon);
return(drawPolygon);
}
public override void OnMouseUp(DrawArea drawArea, MouseEventArgs e)
{
newPolygon = null;
base.OnMouseUp(drawArea, e);
}