Patent ID: 8830191
Filing Date: 2014-09-09
Classification: G06F,H04N

Abstract:
1. A method comprising: by a computing device, displaying on a display of the computing device a graphical parameter-control element in a graphical user interface indicating a linear range and a position value of a controllable parameter of an application of the computing device; by the computing device, detecting a touch event on a touchpad of the computing device; by the computing device, if the touch event is a scrolling event, then scrolling the position value along the range based on a direction of the scrolling event, wherein the position value is adjusted by a relative amount within the linear range mapping to a relative distance of the scrolling event along the touchpad; and by the computing device, if the touch event is a tap event, then changing the position value within the linear range to a relative position value mapping to a relative location of the touch event on the touchpad.