manage_cols.c

/*
** manage_cols.c for my_select in /home/sebastien/travaux/my_select
**
** Made by sebastien
** Login   <sebastien@epitech.net>
**
** Started on  Thu Jan 16 17:27:36 2014 sebastien
** Last update Thu Jan 16 17:32:43 2014 sebastien
*/

#include <sys/ioctl.h>
#include <stdlib.h>
#include <curses.h>
#include <term.h>
#include "my_select.h"

static int	get_size_from_to(int begin, int end, t_list *root)
{
  t_list	*tmp;
  int		size_max;
  int		i;

  i = 0;
  tmp = root;
  size_max = 0;
  while (i <= begin)
  {
    tmp = tmp->next;
    i = i + 1;
  }
  while (i <= end)
  {
    if (tmp->size_str > size_max)
      size_max = tmp->size_str;
    tmp = tmp->next;
    i = i + 1;
  }
  if (tmp->size_str > size_max)
    size_max = tmp->size_str;
  return (size_max);
}

static int	get_size_max(int i, int ws_row, t_list *root)
{
  int		j;
  int		num_col;
  int		size_max;
  int		col_total;

  j = 0;
  size_max = 0;
  col_total = (root->nb_elem) / ws_row;
  num_col = i / ws_row;
  while (j < num_col)
  {
    size_max += get_size_from_to(ws_row * j, (ws_row * (j + 1) - 1), root);
    j = j + 1;
  }
  return (size_max);
}

static int	get_size_elem(t_list *root, int i)
{
  t_list	*tmp;
  int		counter;

  counter = 0;
  tmp = root->next;
  while (counter < i)
    counter += 1;
  return (tmp->size_str + 1);
}

int			manage_col(int i, t_list *root)
{
  struct winsize	win;
  int			nb_lines;
  int			row;
  int			tmp;

  nb_lines = 0;
  ioctl(fd_tty, TIOCGWINSZ, &win);
  win.ws_row -= 1;
  if (win.ws_row == 0
      || get_size_from_to(0, root->nb_elem - 1, root) > win.ws_col
      || ((row = get_size_max(i, win.ws_row, root))
	  + get_size_elem(root, i) > win.ws_col))
  {
    my_tputs(tgetstr("cl", NULL));
    my_tputs(tgoto(tgetstr("cm", NULL), 0, 0));
    my_tputs("Window is too little, please resize it\n");
    return (-1);
  }
  if (i >= win.ws_row)
    my_tputs(tgoto(tgetstr("cm", NULL), row, i % (win.ws_row)));
  return (0);
}