private SKColor[,] GetColorOverrideMatrix(List <Tuple <SKRectI, SKColor> > spec)
{
SKColor[,] result = null;
if (TableCellData.Count > 0 && TableCellData[0].Count > 0)
{
int number_of_rows = TableCellData.Count;
if (DisplayHeaderRow)
{
number_of_rows++;
}
int number_of_columns = TableCellData[0].Count;
//Initialize the result matrix fo empty colors
result = new SKColor[number_of_rows, number_of_columns];
for (int r = 0; r < number_of_rows; r++)
{
for (int c = 0; c < number_of_columns; c++)
{
result[r, c] = SKColor.Empty;
}
}
//Now fill it with the appropriate colors
for (int i = 0; i < spec.Count; i++)
{
var this_tuple = spec[i];
var this_rect = this_tuple.Item1;
var this_color = this_tuple.Item2;
for (int r = 0; r < this_rect.Height; r++)
{
var row_coord = this_rect.Top + r;
for (int c = 0; c < this_rect.Width; c++)
{
var col_coord = this_rect.Left + c;
if (row_coord >= 0 && col_coord >= 0 &&
row_coord < result.GetLength(0) && col_coord < result.GetLength(1))
{
result[row_coord, col_coord] = this_color;
}
}
}
}
}
return(result);
}