//handles the visual of the hash table's elements on the panel pnlDraw
private void pnlDraw_Paint(object sender, PaintEventArgs e)
{
//only draw if ready
if (my_hash_set != null)
{
Internals.getHashSetInternals <Cloneable>(my_hash_set, ref my_data);
//get a graphics context to draw with
Graphics g = e.Graphics;
int row_count = my_data.Length / 5; //number of elements per row
int col_width = (pnlDraw.Width - 20) / 5; // width of each coloum of elements
double delta = (pnlDraw.Height * 1.0) / row_count; //get the distance between elements and draw them
//loop through all elements and draw them
for (int i = 0; i < my_data.Length; i++)
{
int col = i / row_count; //current column
int left = 4 + col * 4 + col * col_width; //left x value for the line being drawn
int right = left + col_width; //right x value for the line being drawn
//draw the line
Pen p = new Pen(new SolidBrush(Color.Black));
if (my_data[i] != null)
{
int y = (int)(delta * (i % row_count));
g.DrawLine(p, new Point(left, y), new Point(right, y));
}
}
//setup visual labels for row counts
setupItemLabels(my_data.Length);
}
}
