Module: CDK::Alignments

Included in:
CDKOBJS
Defined in:
lib/cdk/mixins/alignments.rb

Instance Method Summary collapse

Instance Method Details

#alignxy(window, xpos, ypos, box_width, box_height) ⇒ Object

This takes an x and y position and realigns the values iff they sent in values like CENTER, LEFT, RIGHT

window is an Ncurses::WINDOW object xpos, ypos is an array with exactly one value, an integer box_width, box_height is an integer



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# File 'lib/cdk/mixins/alignments.rb', line 9

def alignxy (window, xpos, ypos, box_width, box_height)
  first = window.getbegx
  last = window.getmaxx
  if (gap = (last - box_width)) < 0
    gap = 0
  end
  last = first + gap

  case xpos[0]
  when LEFT
    xpos[0] = first
  when RIGHT
    xpos[0] = first + gap
  when CENTER
    xpos[0] = first + (gap / 2)
  else
    if xpos[0] > last
      xpos[0] = last
    elsif xpos[0] < first
      xpos[0] = first
    end
  end

  first = window.getbegy
  last = window.getmaxy
  if (gap = (last - box_height)) < 0
    gap = 0
  end
  last = first + gap

  case ypos[0]
  when TOP
    ypos[0] = first
  when BOTTOM
    ypos[0] = first + gap
  when CENTER
    ypos[0] = first + (gap / 2)
  else
    if ypos[0] > last
      ypos[0] = last
    elsif ypos[0] < first
      ypos[0] = first
    end
  end
end