42-archive/libft/src/btree/btree_print.c

80 lines
2.4 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* btree_print.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2016/11/14 18:06:24 by jhalford #+# #+# */
/* Updated: 2016/11/21 15:13:44 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "btree.h"
enum e_data
{
is_left,
offset,
depth,
};
static int print_t(t_btree *tree,
int data[3], char s[20][255], char *(*printer)(void *))
{
char b[20];
int width;
int left;
int right;
int i;
width = 5;
if (!tree)
return (0);
sprintf(b, "%5s", printer(tree->item));
left = print_t(tree->left, (int[3]){
1, data[offset], data[depth] + 1}, s, printer);
right = print_t(tree->right, (int[3]){
0, data[offset] + left + width, data[depth] + 1}, s, printer);
i = -1;
while (++i < width)
s[2 * data[depth]][data[offset] + left + i] = b[i];
if (data[depth] && data[is_left])
{
i = -1;
while (++i < width + right)
s[2 * data[depth] - 1][data[offset] + left + width / 2 + i] = '-';
s[2 * data[depth] - 1][data[offset] + left + width / 2] = '+';
s[2 * data[depth] - 1][
data[offset] + left + right + 3 * width / 2] = '+';
}
else if (data[depth] && !data[is_left])
{
i = -1;
while (++i < width + left)
s[2 * data[depth] - 1][data[offset] - width / 2 + i] = '-';
s[2 * data[depth] - 1][data[offset] + left + width / 2] = '+';
s[2 * data[depth] - 1][data[offset] - width / 2 - 1] = '+';
}
return (left + width + right);
}
void btree_print(t_btree *tree, char *(*printer)(void *))
{
char s[20][255];
char empty[255];
int i;
i = -1;
while (++i < 20)
sprintf(s[i], "%80s", " ");
sprintf(empty, "%80s", " ");
print_t(tree, (int[3]){0, 0, 0}, s, printer);
i = -1;
while (++i < 20)
{
if (ft_strcmp(s[i], empty) == 0)
break ;
printf("%s\n", s[i]);
}
}