摘要
针对Qt/E4(Qt/Embedded,Qt/E)环境下中文输入法的设计困难及功能简单等问题,设计并实现一个在嵌入式Linux平台下基于Qt/E4和SQLite3环境设计的拼音输入法。先设计并创建SQLite3中文字库,然后设计输入法界面及映射各按键事件,根据Qt/E的运行机制和输入法工作原理设计键盘事件过滤接口,并结合SQLite3数据库查询实现中文拼音到汉字匹配、显示、选取等各项功能,最后完成输入。该方案设计的输入法具有模糊匹配、联想查询、词频记忆、自定义词语等功能,且字库扩充与剪裁方便,小巧灵活高效。
In this paper,a Chinese input method based on Qt/E4 and SQLite3 for embedded Linux platform was presented,just for resolving the problems of hard design and simple function under the environment of Qt/E4.The theory of the Qt/E4 Chinese input method was proposed first.Based on the theory,some key points of design steps of the Chinese input method were introduced,including Chinese characters library,the soft keyboard interface,and the mapping of the soft keyboard events.It rewired the filter interface of the keyboard events according to operating mechanism of Qt/E4,combined with the querying of SQLite3 database to realize kinds of functions,such as the matching of Chinese Pinyin to Chinese characters,displaying and selecting of the characters;Finally,the input was completed.As the experimental results show,the proposed Chinese input method can support effectively fuzzy matching,associative queries,the memory of frequent words,custom expressions,etc,and the Chinese characters library is compact,flexible,efficient and easy to expand and tailor.
出处
《计算机应用》
CSCD
北大核心
2011年第A01期149-151,共3页
journal of Computer Applications
基金
宁夏科技攻关计划项目(宁科计字[2009]83号第25项)
