Pen-based interface for a notepad computer

摘要

The invention is a notepad computer with a page display region displaying a page of a document on which a user can write using a pen or stylus type writing tool. Associated with the page is an interface that can be used with the pen. The interface includes a core task tool region adjacent to the page where tool icons are partially visible until the pen is brought near one of the icons. The tool icon becomes fully visible when the pen is within the region of the icon. The tool when activated can pop-up a radial pop-up menu located at an edge of the document where all the menu choices are located in a semi-circle away from the edge so that the user's hand while holding the pen and making a selection does not block the choices. A page flipping tool is located in a corner of the page and is an explicit two-stroke menu allowing selection of a next or previous page. A page scrolling tool is located along an edge of the page, the scrolling tool when activated is an implicit button allowing scrolling in one implied direction. The interface also includes a stack region adjacent to said page display region having one or more stack icons each representing a stack of documents. The icon is also an explicit two-stroke radial pop-up menu having forward and backward choices for selecting documents in the stack and a stack document list display displaying a list of documents in the stack when the stack icon is touched by an input pen. The interface also includes a typing tool overlaying a portion of the page and including a writing zone where a user handwrites strokes and, a page zone comprising part of the page where typed text corresponding to the handwritten strokes is displayed as the handwriting occurs.