public class matrix
    {
        System.Drawing.Graphics des;
        System.Drawing.Pen creion_gr= new System.Drawing.Pen(System.Drawing.Color.Gray);
        System.Drawing.SolidBrush pens_r= new System.Drawing.SolidBrush(System.Drawing.Color.Red);
        System.Drawing.SolidBrush pens_v = new System.Drawing.SolidBrush(System.Drawing.Color.Lime);
        System.Drawing.SolidBrush pens_gri = new System.Drawing.SolidBrush(System.Drawing.Color.LightGray);
        int x0;         // pozitia pe x
        int y0;         // pozitia pe y
        int wb;         // latimea unui bit
        int hb;         // inaltimea unui bit
        int nrr;        // numarul de randuri                   
        int nrb;        // numarul de biti (coloane)
        int dc;         // dreptunghi d_c=1, cerc d_c=0)
        int rv;         // rosu r_v=1, verde r_v=0)
        public void setval(Int64[] n)
        {   
            int x = x0 + nrb*(wb+4)-wb;
            int y = y0 + hb;
            int i, j;
            if(rv==1)
                pens_v = pens_r;
            //des.DrawRectangle(creion_gr, x0, y0, (wb+4)*nrb+wb, (hb+4) *nrr+hb);
            for (j = 0; j < nrr; j++)
            {
                for (i = nrb - 1; i >= 0; i--)
                {
                    System.Int64 bit = ((n[j] >> (nrb - i - 1)) & 1);
                    if (dc == 1)
                    {
                        des.DrawRectangle(creion_gr, x - 1, y - 1, wb + 1, hb + 1);
                        if (bit == 1)
                            des.FillRectangle(pens_v, x, y, wb, hb);
                        else
                            des.FillRectangle(pens_gri, x, y, wb, hb);
                    }
                    if (dc == 0)
                    {
                        des.DrawEllipse(creion_gr, x - 1, y - 1, wb + 2, hb + 2);
                        if (bit == 1)
                            des.FillEllipse(pens_v, x, y, wb, hb);
                        else
                            des.FillEllipse(pens_gri, x, y, wb, hb);
                    }
                    x -= wb+4;
                }
                x = x0 + nrb * (wb+4)-wb;
                y += hb+4;
            }
        }
        public matrix(System.Drawing.Graphics desen, int pozx, int pozy, int bit_w, int bit_h, int nr_randuri, int nr_biti, int d_c, int r_v)
        {
            des = desen;
            x0 = pozx;              // pozitia pe x
            y0 = pozy;              // pozitia pe y
            wb = bit_w;             // latimea unui bit
            hb = bit_h;             // inaltimea unui bit
            nrr = nr_randuri;       // numarul de randuri
            nrb = nr_biti;          // numarul de biti (coloane)
            dc = d_c;               // dreptunghi d_c=1, cerc d_c=0)
            rv = r_v;               // rosu r_v=1, verde r_v=0)
        }
    }