Scrollable area multi-scale viewing

摘要

Utilizing a scrollbar handle for both zooming and panning a display comprising items in a user interface may be accomplished by monitoring an input device's interaction with the scrollbar handle. If the scroll handle is dragged in a direction away from an orientation of the scroll handle in the scrollbar, a display area zoom function can be activated. The zoom function allows a viewbox, comprising content, to be rescaled as a function of the distance the scroll handle is dragged. A displaybox can be created that distinguishes an area of the viewbox from the remainder of the display, which corresponds to content in the viewbox that would be displayed in normal zoom if the scroll handle were released at that location. Further, upon detecting that the scroll handle is released, the display area can zoom to a view of the content inside the distinguished area.

主权项

1. A method, comprising:
receiving a selection gesture associated with a scroll handle of a scrollbar, the selection gesture including a drag gesture initiated on the scroll handle and extending in a drag direction that is substantially orthogonal to a movement direction of the scroll handle along the scrollbar; and in response to the drag gesture in the drag direction:
adjusting a scale of content displayed on a display to obtain scaled content, wherein the adjustment is based on a distance extended by the drag gesture in the drag direction; andproviding, on the display, a distinguished area positioned over a portion of the scaled content, the distinguished area identifying the portion of the scaled content that would be displayed in response to a release of the selection gesture.