Soft Control User Interface with Touchpad Input Device

摘要

In one embodiment, a computing device displays a graphical parameter-control element in a graphical user interface indicating a range and a position value of a controllable parameter of an application of the computing device. The computing device may detect a touch event on a touchpad of the computing device. The computing device may determine that the touch event is a scrolling event, and scroll the position value along the range based on a direction of the scrolling event, and adjust the position value by a relative amount within the range mapping to a relative distance of the scrolling event along the touchpad.

主权项

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 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; and by the computing device, determining that the touch event is a scrolling event, and 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 range mapping to a relative distance of the scrolling event along the touchpad.