web/horario-oop/disciplina.php

   1 <?php
   2         class matrix {
   3                 protected $rows;
   4                 protected $cols;
   5                 protected $matrix;
   6
   7                 public function get_rows()
   8                 {
   9                         return $this->rows;
  10                 }
  11
  12                 public function get_cols()
  13                 {
  14                         return $this->cols;
  15                 }
  16
  17                 protected function mk_matrix()
  18                 {
  19                         $mat = array();
  20
  21                         for ($i = 0; $i < $this->rows; $i++)
  22                                 for ($j = 0; $j < $this->cols; $j++)
  23                                         $mat[$i][$j] = false;
  24
  25                         return $mat;
  26                 }
  27
  28                 public function check_values($mat2, $value)
  29                 {
  30                         if (($this->rows != $mat2->rows) ||
  31                                 ($this->cols != $mat2->cols))
  32                                 throw new Exception("Matrizes sao diferentes");
  33
  34                         for ($i = 0; $i < $this->rows; $i++) {
  35                                 for ($j = 0; $j < $this->cols; $j++) {
  36                                         if ($this->matrix[$i][$j] == $value &&
  37                                                 $mat2->matrix[$i][$j] == $value)
  38                                                 throw new Exception("Matrizes com o mesmo valor");
  39                                 }
  40                         }
  41                 }
  42
  43                 public function __construct($r, $c)
  44                 {
  45                         if ($r <= 0 || $c <= 0)
  46                                 throw new Exception("Colunas ou Linhas invalidas");
  47
  48                         $this->rows = $r;
  49                         $this->cols = $c;
  50                         $this->matrix = $this->mk_matrix($r, $c);
  51                 }
  52         }
  53
  54         class disciplina extends matrix {
  55                 private $nome;
  56
  57                 private function dia_to_row($d)
  58                 {
  59                         $dias = array("seg" => 0, "ter" => 1, "qua" => 2,
  60                                 "qui" => 3, "sex" => 4);
  61
  62                         if (!array_key_exists($d, $dias))
  63                                 throw new Exception("Dia invalido");
  64
  65                         return $dias[$d];
  66                 }
  67
  68                 public function get_nome()
  69                 {
  70                         return $this->nome;
  71                 }
  72
  73                 public function set_nome($n)
  74                 {
  75                         $this->nome = $n;
  76                 }
  77
  78                 private function change_horario($d, $h, $value)
  79                 {
  80                         $h -= 1;
  81
  82                         if ($h < 0 || $h > $this->cols)
  83                                 throw new Exception("Hora invalida");
  84
  85                         if ($value != true && $value != false)
  86                                 throw new Exception("value tem que ser booleano");
  87
  88                         $cur = &$this->matrix[$this->dia_to_row($d)][$h];
  89                         if ($cur == $value)
  90                                 throw new Exception("Valor ja alterado");
  91
  92                         $cur = $value;
  93                 }
  94
  95                 public function has_horario($dia, $hora)
  96                 {
  97                         $hora -= 1;
  98                         return $this->matrix[$this->dia_to_row($dia)][$hora];
  99                 }
 100
 101                 public function set_horario($d, $h)
 102                 {
 103                         if ($this->has_horario($d, $h))
 104                                 throw new Exception("Dia e hora ja existem " .
 105                                         $d . " " . $h);
 106
 107                         $this->change_horario($d, $h, true);
 108                 }
 109
 110                 public function unset_horario($d, $h)
 111                 {
 112                         $this->change_horario($d, $h, false);
 113                 }
 114
 115                 public function __construct($n)
 116                 {
 117                         $rows = 5;
 118                         $cols = 6;
 119                         parent::__construct($rows, $cols);
 120                         $this->set_nome($n);
 121                 }
 122         }
 123 ?>