protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["Partitions"] != null)
{
string Partitions = Request.QueryString["Partitions"];
string[] EachPartition = Partitions.Split(new string[] { "|" }, StringSplitOptions.RemoveEmptyEntries);
foreach (string Partition in EachPartition)
{
PartitionValue pv = new PartitionValue();
pv.Description = Partition.Substring(0, Partition.LastIndexOf(";"));
pv.Value = float.Parse(Partition.Substring(Partition.LastIndexOf(";") + 1));
PartitionValues.Add(pv);
}
string definecolors = ConfigurationSettings.AppSettings["PieColors"];
string[] colors = definecolors.Split(new string[] { "|" }, StringSplitOptions.RemoveEmptyEntries);
foreach (string color in colors)
{
string[] rgbs = color.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
int R = int.Parse(rgbs[0]);
int G = int.Parse(rgbs[1]);
int B = int.Parse(rgbs[2]);
System.Drawing.Color newcolor = Color.FromArgb(R, G, B);
PieColors.Add(newcolor);
}
DrawPieChart();
}
}
private void DrawPie(PartitionValue pv, Graphics g)
{
float startAngle = currentposition;
float sweepAngle = (pv.Value * 360);
currentposition = startAngle + sweepAngle;
int x = 5;
int y = 5;
int width = 350;
int height = 260;
//int labelwidth = 50;
//int labelHeight = 50;
//StringFormat sfLabel = new StringFormat();
//sfLabel.Alignment = StringAlignment.Center;
//sfLabel.LineAlignment = StringAlignment.Center;
SolidBrush objBrush = new SolidBrush((Color)PieColors[currentIndex % PieColors.Count]);
g.SmoothingMode = SmoothingMode.AntiAlias;
if (startAngle == 0)
{
int iDiff = 30;
if (sweepAngle >= 180)
{
iDiff = 0;
}
g.FillPie(objBrush, x + iDiff, y + 20, width, height, startAngle, sweepAngle);
//if (sweepAngle > 20)
//{
// float centx = (float)(180 + 200 * (Math.Cos((startAngle + sweepAngle / 2) * 3.14159 / 180)));
// float centy = (float)(135+ 150*(Math.Sin ((startAngle + sweepAngle / 2) * 3.14159 / 180)));
// g.DrawRectangle(Pens.Red, centx + iDiff - labelwidth / 2, centy + 20 - labelHeight / 2, labelwidth, labelHeight);
// g.DrawString(pv.Value.ToString ("P",CultureInfo.InvariantCulture), new Font("Arial", 9), Brushes.Black, new RectangleF(centx+iDiff-labelwidth /2,centy+20-labelHeight/2,labelwidth,labelHeight),sfLabel );
//}
}
else
{
g.FillPie(objBrush, x, y, width, height, startAngle, sweepAngle);
//if (sweepAngle > 20)
//{
// float centx = (float)(180 + 200 * (Math.Cos((startAngle + sweepAngle / 2) * 3.14159 / 180)));
// float centy = (float)(135 + 150 * (Math.Sin((startAngle + sweepAngle / 2) * 3.14159 / 180)));
// g.DrawRectangle(Pens.Red, centx - labelwidth / 2, centy - labelHeight / 2, labelwidth, labelHeight);
// g.DrawString(pv.Value.ToString("P", CultureInfo.InvariantCulture), new Font("Arial", 9), Brushes.Black, new RectangleF(centx-labelwidth/2 , centy-labelHeight/2,labelwidth,labelHeight),sfLabel );
//}
//g.DrawPie(Pens.White, x, y, width, height, startAngle, sweepAngle);
}
}
private void DrawPieSlide(PartitionValue pv, Graphics g)
{
float startAngle = currentposition;
float sweepAngle = (pv.Value * 360);
currentposition = startAngle + sweepAngle;
int x = 5;
int y = 5;
int width = 350;
int height = 260;
SolidBrush objBrush = new SolidBrush((Color)PieColors[currentIndex % PieColors.Count]);
g.SmoothingMode = SmoothingMode.AntiAlias;
if (startAngle == 0)
{
int iDiff = 30;
if (sweepAngle >= 180)
{
iDiff = 0;
}
for (int iLoop2 = 0; iLoop2 < 15; iLoop2++)
{
g.FillPie(new HatchBrush(HatchStyle.Percent50, objBrush.Color), x + iDiff, y + iLoop2 + 20, width, height, startAngle, sweepAngle);
}
}
else if (startAngle <= 180 || currentposition >= 359)
{
for (int iLoop2 = 0; iLoop2 < 15; iLoop2++)
{
g.FillPie(new HatchBrush(HatchStyle.Percent50, objBrush.Color), x, y + iLoop2, width, height, startAngle, sweepAngle);
//g.DrawPie(Pens.White, x, y + iLoop2, width, height, startAngle, sweepAngle);
//g.FillPie(objBrush, x, y, width, height, startAngle, sweepAngle);
}
}
else
{
//g.FillPie(objBrush, x, y, width, height, startAngle, sweepAngle);
//g.DrawPie(Pens.White, x, y, width, height, startAngle, sweepAngle);
}
}
