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use std::iter::repeat;
use users::OSUsers;
use term_grid as grid;
use column::{Column, Cell};
use dir::Dir;
use feature::xattr::FileAttributes;
use file::File;
use output::details::{Details, Table};
use output::grid::Grid;
#[derive(PartialEq, Debug, Copy, Clone)]
pub struct GridDetails {
pub grid: Grid,
pub details: Details,
}
fn file_has_xattrs(file: &File) -> bool {
match file.path.attributes() {
Ok(attrs) => !attrs.is_empty(),
Err(_) => false,
}
}
impl GridDetails {
pub fn view(&self, dir: Option<&Dir>, files: &[File]) {
let columns_for_dir = match self.details.columns {
Some(cols) => cols.for_dir(dir),
None => Vec::new(),
};
let mut first_table = Table::with_options(self.details.colours, columns_for_dir.clone());
let cells: Vec<_> = files.iter().map(|file| first_table.cells_for_file(file, file_has_xattrs(file))).collect();
let mut last_working_table = self.make_grid(1, &*columns_for_dir, files, cells.clone());
for column_count in 2.. {
let grid = self.make_grid(column_count, &*columns_for_dir, files, cells.clone());
let the_grid_fits = {
let d = grid.fit_into_columns(column_count);
d.is_complete() && d.width() <= self.grid.console_width
};
if the_grid_fits {
last_working_table = grid;
}
else {
print!("{}", last_working_table.fit_into_columns(column_count - 1));
return;
}
}
}
fn make_table(&self, columns_for_dir: &[Column]) -> Table<OSUsers> {
let mut table = Table::with_options(self.details.colours, columns_for_dir.into());
if self.details.header { table.add_header() }
table
}
fn make_grid(&self, column_count: usize, columns_for_dir: &[Column], files: &[File], cells: Vec<Vec<Cell>>) -> grid::Grid {
let mut tables: Vec<_> = repeat(()).map(|_| self.make_table(columns_for_dir)).take(column_count).collect();
let mut num_cells = cells.len();
if self.details.header {
num_cells += column_count;
}
let original_height = divide_rounding_up(cells.len(), column_count);
let height = divide_rounding_up(num_cells, column_count);
for (i, (file, row)) in files.iter().zip(cells.into_iter()).enumerate() {
let index = if self.grid.across {
i % column_count
}
else {
i / original_height
};
tables[index].add_file_with_cells(row, file, 0, false, false);
}
let columns: Vec<_> = tables.iter().map(|t| t.print_table()).collect();
let direction = if self.grid.across { grid::Direction::LeftToRight }
else { grid::Direction::TopToBottom };
let mut grid = grid::Grid::new(grid::GridOptions {
direction: direction,
filling: grid::Filling::Spaces(4),
});
if self.grid.across {
for row in 0 .. height {
for column in columns.iter() {
if row < column.len() {
let cell = grid::Cell {
contents: column[row].text.clone(),
width: column[row].length,
};
grid.add(cell);
}
}
}
}
else {
for column in columns.iter() {
for cell in column.iter() {
let cell = grid::Cell {
contents: cell.text.clone(),
width: cell.length,
};
grid.add(cell);
}
}
}
grid
}
}
fn divide_rounding_up(a: usize, b: usize) -> usize {
let mut result = a / b;
if a % b != 0 { result += 1; }
result
}
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