/// <summary>
/// 绘制该控制点
/// </summary>
/// <param name="g"></param>
public void Draw(Graphics g)
{
DrawBorderHandler(g, PositionRect, backColor);
if (selected)
{
//选中时边框变粗
CustomRectangle rect = new CustomRectangle(x - 4, y - 4, 8, 8);
g.DrawRectangle(new Pen(Color.Black), rect.ToRectangle());
}
}
public static CustomRectangle ToCustomRectangle(RectangleF re)
{
CustomRectangle cus = new CustomRectangle();
cus.X = re.X;
cus.Y = re.Y;
cus.Width = re.Width;
cus.Height = re.Height;
return(cus);
}
/// <summary>
/// 鼠标点击测试，看是否在点附近点击
/// </summary>
/// <param name="pt"></param>
/// <returns></returns>
public bool MouseHitTest(PointF pt)
{
CustomRectangle rect = new CustomRectangle(x - 5, y - 5, 10, 10); //判断选中时加点误差，使选中更加顺利
return(rect.IsPointFInRectangle(pt.X, pt.Y));
}
/// <summary>
/// 绘制边框句柄
/// </summary>
/// <param name="g"></param>
/// <param name="rect"></param>
private void DrawBorderHandler(Graphics g, CustomRectangle rect, Color clr)
{
g.FillRectangle(new SolidBrush(clr), rect.ToRectangleF());
g.DrawRectangle(new Pen(Color.Black), rect.ToRectangle());
}