//比较两个国家土地
public static int CompareNationsByDistrict(NationNode x, NationNode y)
{
if (x == null)
{
if (y == null)
{
// If x is null and y is null, they're
// equal.
return(0);
}
else
{
// If x is null and y is not null, y
// is greater.
return(1);
}
}
else
{
// If x is not null...
//
if (y == null)
// ...and y is null, x is greater.
{
return(-1);
}
else
{
// ...and y is not null, compare the
// lengths of the two strings.
//
int retval = x.Districts.Count.CompareTo(y.Districts.Count);
return(-retval);
}
}
}
//绘制节点
Image DrawNode(DistrictNode dNode, NationNode nNode)
{
Pen frame; //显示变量 边框画笔
Image img; //返回Image
Graphics gGraphic; //绘制目标图元
SolidBrush fore, back; //显示变量 背景色刷
int intRand; //半径
intRand = 12;
//新建位图，存放节点图像
img = new Bitmap(intRand * 2 + 1, intRand * 2 + 1);
gGraphic = Graphics.FromImage(img);
gGraphic.SmoothingMode = SmoothingMode.HighQuality;//平滑处理
//填充圆形
back = new SolidBrush(nNode.BackColor);
gGraphic.FillEllipse(back, 0, 0, intRand * 2, intRand * 2);
//外围边框绘制
frame = new Pen(nNode.FrameColor);
gGraphic.DrawEllipse(frame, 0, 0, 2 * intRand, 2 * intRand);
//绘制前景字符串
fore = new SolidBrush(nNode.ForeColor);
gGraphic.DrawString(dNode.Name, new Font("Times New Roman", 7), fore, 1, 7);
return(img);
}
