Struct fm::content_window::ContentWindow

pub struct ContentWindow {
    pub top: usize,
    pub bottom: usize,
    pub len: usize,
    pub height: usize,
}

Holds the information about the displayed window of lines. When there’s too much lines to display in one screen, we can scroll and this struct is responsible for that. Scrolling is done with scroll_to, scroll_up_one, scroll_down_one methods.

Fields

top: usize

The index of the first displayed file.

bottom: usize

The index of the last displayed file.

len: usize

The number of displayble file in the current folder.

height: usize

The height of the terminal.

Implementations

impl ContentWindow

pub fn new(len: usize, height: usize) -> Self

Returns a new ContentWindow instance with values depending of number of files and height of the terminal screen.

pub const WINDOW_MARGIN_TOP: usize = 2usize

The space of the top element

pub fn set_height(&mut self, height: usize)

How many rows are reserved at bottom Set the height of file window.

pub fn scroll_up_one(&mut self, index: usize)

Move the window one line up if possible. Does nothing if the index can’t be reached.

pub fn scroll_down_one(&mut self, index: usize)

Move the window one line down if possible. Does nothing if the index can’t be reached.

pub fn reset(&mut self, len: usize)

Reset the window to the first files of the current directory.

pub fn scroll_to(&mut self, index: usize)

Scroll the window to this index if possible. Does nothing if the index can’t be reached.

Trait Implementations

impl Clone for ContentWindow

fn clone(&self) -> ContentWindow

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContentWindow

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.