class BBS::Editor::Chrome

What the editor draws round the text: the reversed title bar with the count of characters, and the bottom row with the key hints or the save-or-quit question. Each method returns the bytes to write, moving a BBS::Cursor.

Public Class Methods

new (cursor, title:, single_line:, max:, cols:, rows:)

Source

# File lib/bbs/editor/chrome.rb, line 16
def initialize(cursor, title:, single_line:, max:, cols:, rows:)
  @cursor = cursor
  @title  = title
  @single = single_line
  @max    = max
  @cols   = cols
  @rows   = rows
  @count  = nil
end

Draws for cursor (a BBS::Cursor) on a screen cols × rows.

title: the text of the title bar
single_line: whether RETURN saves, which the hints tell
max: the most characters the text may hold, or nil for no count

Public Instance Methods

count (length)

Source

# File lib/bbs/editor/chrome.rb, line 40
def count(length)
  return '' unless @max

  count = "#{length}/#{@max} ".rjust("#{@max}/#{@max} ".length)
  return '' if count == @count

  @count = count
  out = @cursor.move(1, @cols - 1 - count.length)
  @cursor.wrote(count.length + 1)
  "#{out}#{Ansi::REVERSE} #{count}#{Ansi::REVERSE_OFF}"
end

The count of length characters at the right of the title bar, when there is a limit; empty when there is none or it shows already.

hints ()

Source

# File lib/bbs/editor/chrome.rb, line 30
def hints
  menu = @cursor.petscii? ? 'STOP/←' : 'Esc'
  bottom(@single ? "#{enter_key} save  #{menu} quit" : "#{menu}: save or quit")
end

The bottom row with the key hints.

question ()

Source

# File lib/bbs/editor/chrome.rb, line 36
def question = bottom("S save  Q quit  #{enter_key} back")

The bottom row asking whether to save or quit.

title ()

Source

# File lib/bbs/editor/chrome.rb, line 27
def title = reversed(@title)

The title bar, written at the cursor (the top left).