private void 捕获包统计ToolStripMenuItem_Click(object sender, EventArgs e)
{
Hashtable ht = new Hashtable();
for (int i = 0; i < listViewMain.Items.Count; i++)
{
string tmpProtocal = listViewMain.Items[i].SubItems[4].Text;
if (!ht.ContainsKey(tmpProtocal))
{
ht.Add(tmpProtocal, 1);
}
else
{
int count = (int)ht[tmpProtocal];
count++;
ht[tmpProtocal] = count;
}
}
//HashTalbe转换为数组
packetKind[] result = new packetKind[ht.Count];
int arrayIndex = 0;
foreach (Object obj in ht.Keys)
{
result[arrayIndex].protocol = obj.ToString();
result[arrayIndex].count = (int)ht[obj];
arrayIndex++;
}
statisticForm frm = new statisticForm(result);
frm.Show();
}
/// <summary>
/// 绘制一个图片
/// </summary>
/// <param name="title">图名称</param>
/// <param name="subtitle">图的副名称</param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="chartData">数据</param>
/// <returns></returns>
public static Image render(string title, string subtitle, int width, int height, packetKind[] chartData)
{
const int side_length = 400;
const int pie_diameter = 200;
//通过输入参数，取得饼图中的总基数
float sumData = 0;
for (int i = 0; i < chartData.Length; i++)
{
sumData += chartData[i].count;
}
//产生一个image对象，并由此产生一个graphics对象
Bitmap bmp = new Bitmap(width, height);
Graphics g = Graphics.FromImage(bmp);
try
{
//设置对象g的属性
g.ScaleTransform((Convert.ToSingle(width)) / side_length, (Convert.ToSingle(height)) / side_length);
//用白色清空画布
g.Clear(Color.White);
g.DrawRectangle(Pens.Black, 0, 0, side_length - 1, side_length - 1);
//画饼图标题
g.DrawString(title, new Font("tahoma", 14), Brushes.Black, new PointF(5, 5));
g.DrawString(subtitle, new Font("tahoma", 12), Brushes.Black, new PointF(7, 35));
//画饼图
float currentAngle = 0;
float totalAngle = 0;
for (int i = 0; i < chartData.Length; i++)
{
currentAngle = Convert.ToSingle(chartData[i].count) / sumData * 360;
g.FillPie(new SolidBrush(getColor(i)), 100, 65, pie_diameter, pie_diameter, totalAngle, currentAngle);
g.DrawPie(Pens.Black, 100, 65, pie_diameter, pie_diameter, totalAngle, currentAngle);
totalAngle += currentAngle;
}
//画图例框及其文字
g.DrawRectangle(Pens.Black, 200, 300, 199, 99);
g.DrawString("图表说明", new Font("tahoma", 12, FontStyle.Bold), Brushes.Black, new PointF(200, 300));
//画图例各项
PointF box = new PointF(210, 330);
PointF text = new PointF(235, 326);
float percent = 0;
for (int i = 0; i < chartData.Length; i++)
{
g.FillRectangle(new SolidBrush(getColor(i)), box.X, box.Y, 20, 10);
g.DrawRectangle(Pens.Black, box.X, box.Y, 20, 10);
percent = Convert.ToSingle(chartData[i].count) / sumData * 100;
g.DrawString((i+1).ToString()+ " - " + chartData[i].protocol + " (" + percent.ToString("0") + "%)", new Font("tahoma", 10), Brushes.Black, text);
box.Y += 15;
text.Y += 15;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.TargetSite.ToString());
}
return (Image)bmp;
}
private void 捕获包统计ToolStripMenuItem_Click(object sender, EventArgs e)
{
Hashtable ht = new Hashtable();
for (int i = 0; i < listViewMain.Items.Count; i++)
{
string tmpProtocal = listViewMain.Items[i].SubItems[4].Text;
if (!ht.ContainsKey(tmpProtocal))
{
ht.Add(tmpProtocal, 1);
}
else
{
int count = (int)ht[tmpProtocal];
count++;
ht[tmpProtocal] = count;
}
}
//HashTalbe转换为数组
packetKind[] result = new packetKind[ht.Count];
int arrayIndex = 0;
foreach (Object obj in ht.Keys)
{
result[arrayIndex].protocol = obj.ToString();
result[arrayIndex].count = (int)ht[obj];
arrayIndex++;
}
statisticForm frm = new statisticForm(result);
frm.Show();
}
public statisticForm(packetKind[] items)
{
InitializeComponent();
this.picBox.Image = PieChart.render("数据包统计图", DateTime.Now.TimeOfDay.ToString(), 500, 400, items);
}