class BBS::Petscii::Canvas::Output::Pen

The colour and reverse video sent so far while cells go out.

Attributes

Whether reverse video is on.

Public Class Methods

Source

# File lib/bbs/petscii/canvas/output.rb, line 64
def initialize
  @color = nil
  @rvs   = false
end

A pen with no colour sent and reverse video off.

Public Instance Methods

close (out)

Source

# File lib/bbs/petscii/canvas/output.rb, line 82
def close(out)
  out << RVS_OFF if @rvs
  out
end

Turns reverse video off at the end of out when it is on. Returns out.

emit (out, cells)

Source

# File lib/bbs/petscii/canvas/output.rb, line 71
def emit(out, cells)
  cells.each do |cell|
    visible = cell.visible?
    color(out, cell.color) if visible && cell.color
    reverse(out, cell.rvs) if visible || @rvs
    out << cell.code
  end
end

Appends the codes of cells to out, with the colour and RVS codes each needs: an invisible cell takes no colour.