private void canvas_Paint(object sender, PaintEventArgs e)
{
Pen pen = new Pen(Color.Black);
Pen dottedPen = new Pen(Color.Black);
float[] dash = { 5, 5 };
dottedPen.DashPattern = dash;
float stepw = ((float)canvas.Size.Width - 50) / (Algorithm.summ(columns[columns.Length - 1]) + Algorithm.summ(downtimes[downtimes.Length - 1])),
steph = ((float)canvas.Size.Height - 20) / (columns.Length + 1);
e.Graphics.DrawLine(pen, 30, 10, 30, canvas.Size.Height - 10);
float curw, curh = 10 + steph;
Char S = 'S', x = 'x', s = 's';
int Si = 0, xi = 0, si = 0;
for (int i = 0; i < columns.Length; i++)
{
curw = 30;
e.Graphics.DrawString(S.ToString() + Si.ToString(), new Font("Arial", 12), new SolidBrush(Color.Black), new PointF(0, curh - 8), StringFormat.GenericDefault);
Si++;
e.Graphics.DrawLine(pen, 30, curh, (float)canvas.Size.Width - 10, curh);
for (int j = 0; j < columns[0].Length; j++)
{
if (downtimes[i][j] > 0)
{
curw += downtimes[i][j] * stepw;
e.Graphics.DrawLine(pen, curw, curh - 5, curw, curh + 5);
e.Graphics.DrawString(x.ToString() + xi.ToString() + j.ToString(), new Font("Arial", 9), new SolidBrush(Color.Black), new PointF(curw - ((stepw * downtimes[i][j]) / 2) - 10, curh - 15), StringFormat.GenericDefault);
e.Graphics.DrawString(downtimes[i][j].ToString(), new Font("Arial", 9), new SolidBrush(Color.Black), new PointF(curw - ((stepw * downtimes[i][j]) / 2) - 10, curh + 2), StringFormat.GenericDefault);
}
curw += columns[i][j] * stepw;
e.Graphics.DrawLine(pen, curw, curh - 5, curw, curh + 5);
e.Graphics.DrawString(s.ToString() + si + j.ToString(), new Font("Arial", 9), new SolidBrush(Color.Black), new PointF(curw - ((stepw * columns[i][j]) / 2) - 10, curh - 15), StringFormat.GenericDefault);
e.Graphics.DrawString(columns[i][j].ToString(), new Font("Arial", 9), new SolidBrush(Color.Black), new PointF(curw - ((stepw * columns[i][j]) / 2) - 10, curh + 2), StringFormat.GenericDefault);
if (i < columns.Length - 1 && downtimes[i + 1][j] != 0)
{
e.Graphics.DrawLine(dottedPen, curw, curh, curw, curh + steph);
}
}
xi++;
si++;
curh += steph;
}
}