Custom TimeArea Ruller Unity3d

How to create TimeArea the same as seen in Animation Window? Few reflections and voila.

  
    if (__timeAreaW == null) {
                                __timeAreaW = new TimeAreaW (false);

                                
                                __timeAreaW.hSlider = true;
                                __timeAreaW.vSlider = false;
                                __timeAreaW.vRangeLocked = true;
                                __timeAreaW.hRangeMin = 0f;
                                //__timeAreaW.hRangeMax=3f;

                                __timeAreaW.margin = 0f;
                                
                                __timeAreaW.scaleWithWindow = true;
                            
                                //__timeAreaW.ignoreScrollWheelUntilClicked = false;
                                if(__sequence!=null)
                                    __timeAreaW.hTicks.SetTickModulosForFrameRate (__sequence.frameRate);
                                else
                                    __timeAreaW.hTicks.SetTickModulosForFrameRate (30);

                                this.Repaint ();
            
                                
            
                        }

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