RAPIDLY PROTOTYPING SINGLE DISPLAY GROUPWARE THROUGH THE SDGTOOLKIT
Date
2003-04-15
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Abstract
Researchers in Single Display Goupware (SDG) explore how multiple
users share a single display such as a computer monitor, a large wall display,
or an electronic tabletop display. Yet todays personal computers are
designed with the assumption that one person interacts with the display at a
time. Thus researchers and programmers face considerable hurdles if they wish
to develop SDG. Our solution is the SDGToolkit, a toolkit for rapidly
prototyping SDG. SDGToolkit automatically captures and manages multiple mice
and keyboards, and presents them to the programmer as uniquely identified
input events relative to either the whole screen or a particular window. It
transparently provides multiple cursors, one for each mouse. To handle
orientation issues for tabletop displays (i.e., people seated across from
one another), programmers can specify a participants seating angle, which
automatically rotates the cursor and translates input coordinates so the
mouse behaves correctly. Finally, SDGToolkit provides an SDG-aware widget
class layer that significantly eases how programmers create novel graphical
components that recognize and respond to multiple inputs.
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Computer Science