public void ThemHinhTaiViTri(int location, int typeList)
{
HinhHoc hh = new HinhHoc();
switch (typeList)
{
case 1:
WriteLine("\nHinh Vuong >>");
hh = new HinhTron();
break;
case 2:
WriteLine("\nHinh Vuong >>");
hh = new HinhVuong();
break;
case 3:
WriteLine("\nHinh chu nhat >>");
hh = new HinhChuNhat();
break;
default:
WriteLine("\nCo loi gi do da xay ra! Out...");
break;
}
ListHinhHoc.Add(hh.Nhap());
ListHinhHoc.Insert(location, hh);
}
private bool TrungKieuHinh(HinhHoc hh, TypeList typeList)
{
return(typeList == TypeList.TatCaHinh ||
(hh is HinhVuong && typeList == TypeList.HinhVuong) ||
(hh is HinhTron && typeList == TypeList.HinhTron) ||
(hh is HinhChuNhat && typeList == TypeList.HinhChuNhat));
}
public float TinhChuVi(HinhHoc hh)
{
if (hh is HinhVuong)
{
return(((HinhVuong)hh).TinhChuVi());
}
if (hh is HinhTron)
{
return(((HinhTron)hh).TinhChuVi());
}
if (hh is HinhChuNhat)
{
return(((HinhChuNhat)hh).TinhChuVi());
}
return(0);
}
public void Nhap()
{
HinhHoc hh = new HinhHoc();
string isContinue = null;
do
{
Write("\nBan muon nhap hinh gi (1 - HV, 2 - HT, 3 - HCN) >> ");
int type = int.Parse(ReadLine());
switch (type)
{
case 1:
WriteLine("\nHinh Vuong >>");
hh = new HinhTron();
break;
case 2:
WriteLine("\nHinh Vuong >>");
hh = new HinhVuong();
break;
case 3:
WriteLine("\nHinh chu nhat >>");
hh = new HinhChuNhat();
break;
default:
WriteLine("Co loi gi do da xay ra! Vui long kiem tra lai");
break;
}
ListHinhHoc.Add(hh.Nhap());
WriteLine("\n\tBan co muon nhap nua khong ?");
Write("Nhan phim bat ki de tiep tuc. Go 'No' neu khong! >> ");
isContinue = ReadLine().ToUpper();
} while (isContinue != "NO");
}
public void Xoa(HinhHoc geometry)
{
ListHinhHoc.Remove(geometry);
}
public void Them(HinhHoc geometry)
{
ListHinhHoc.Add(geometry);
}