/**
 * Created by nuintun on 2015/11/24.
 */

'use strict';

module.exports = function (Terminal){
  Terminal.prototype.scrollDisp = function (disp){
    this.ydisp += disp;

    if (this.ydisp > this.ybase) {
      this.ydisp = this.ybase;
    } else if (this.ydisp < 0) {
      this.ydisp = 0;
    }

    this.refresh(0, this.rows - 1);
  };
};