A Multiple-Cursor Windowing System for Embedded System

• Main Authors: Guan-Zhang Wu, 吳冠璋
• Other Authors: 楊中平
• Format: Others
• Language: en_US
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/44809148880182903202

碩士 === 國立成功大學 === 資訊工程學系碩博士班 === 97 === Multi-touch devices are new input devices grown up in recent years. In 2006-2008, many solutions were proposed to achieve multi-touch. Some manufacturers produce various multi-touch devices, but most of them provide only libraries for developers to use. It means that developers had to rewrite all applications to fit to those libraries. Those reworking for applications are time-consuming and meaningless. It might be good if there exists a solution to prevent reworking. This thesis proposes a way to solve this problem at windowing system level so that applications won't be changed. Multiple points on device are mapped to multiple cursors, each cursor has ability to send events to application independently. We select DirectFB as windowing system, GTK+ as graphical user interfaces toolkit, and Wii Remote as multi-touch input device. We develop a new window manager for DirectFB to support multiple cursors. We focus on supporting legacy applications, without creating new event to support multi-touch. We also propose several strategies on updating screen, and set several parameters to evaluate performance.