class Remedy::Viewport

Public Instance Methods

center_range(center, width, limit) click to toggle source
# File lib/remedy/viewport.rb, line 44
def center_range center, width, limit
  range_start = center - (width / 2)

  if range_start + width > limit then
    range_start = limit - width
  end

  if range_start < 0 then
    range_start = 0
  end

  range_end = range_start + width

  (range_start...range_end)
end
content_size(header, footer) click to toggle source
# File lib/remedy/viewport.rb, line 35
def content_size header, footer
  trim = Size [header.length + footer.length, 0]
  size - trim
end
draw(content, center = Size.new(0,0), header = [], footer = []) click to toggle source
# File lib/remedy/viewport.rb, line 9
def draw content, center = Size.new(0,0), header = [], footer = []
  range = range_find content, center, content_size(header,footer)

  if content.size.fits_into? range then
    viewable_content = content
  else
    viewable_content = content.excerpt *range
  end

  view = View.new viewable_content, header, footer

  ANSI.screen.safe_reset!
  Console.output << view
end
range_find(partial, center, heightwidth) click to toggle source
# File lib/remedy/viewport.rb, line 24
def range_find partial, center, heightwidth
  row_size, col_size = heightwidth
  row_limit, col_limit = partial.size

  center_row, center_col = center

  row_range = center_range center_row, row_size, row_limit
  col_range = center_range center_col, col_size, col_limit
  [row_range, col_range]
end
size() click to toggle source
# File lib/remedy/viewport.rb, line 40
def size
  Size Console.size
end