周运练-基于QT的GUI设计.doc

基于QT的GUI设计 摘 要 目前，嵌入式系统发展迅速，应用广泛。基于Qt/E的嵌入式GUI设计成为国家支持的重点方向。GUI），良好的人机接口界面是嵌入式系统设计的一个关键技术，能够极大地提高人机交互的效率。本文详细阐述了上实现图形显示终端过程GUI design based on the QT ABSTRACT At present, the rapid development of embedded systems, a wide range of applications. Based on Qt / E embedded GUI design to become part of the country and the focus of the direction of enterprise support. With the current variety of handheld devices, wireless devices and information appliances, such as the rapid development of embedded products, the corresponding design of embedded hardware and software technology is also undergoing profound changes. Today, more and more embedded devices need Graphical User Interface (GUI), a good Graphical User Interface design of embedded systems is a key technology to greatly improve the efficiency of human-computer interaction. Described in detail in this article, The UP-TECHPXA270-S teaching and research platform based on embedded systems and Linux display terminal QT4 GUI process. In this paper, the project Multimedia Browser based on the linux platform QT4 as an example, graphical user interface of the system, as well as the realization of such functions are described. Key word: Embedded Linux QT4 GUI 目 录 摘要 I ABSTRACT II 1 前言 6 1.1选题背景 6 1.2选题目标 6 1.3需求分析 7 1.3.1用户需求分析 7 1.3.2功能需求分析 7 1.4 本章小结 9 2 QT4的GUI简介 10 2.1 QT的背景介绍 10 2.2 QT实现的结构原理 10 2.3 QT应用程序的实现 11 2.4 本章小结 12 3 系统框架描述 13 3.1 系统模块 13 3.2 主要功能 13 3.3平台简介 14 3.4 UP-TECHPXA270-S核心模块资源 15 3.5 本章小结 16 4 详细设计 17 4.1主界面设计 18 4.2播放器模块设计 20 4.2.1 MPlayer在嵌入式开发系统中的应用 20 4.2.2 QT中调用Mplayer 20 4.2.3 播放器模块GUI界面设计 22 4.3网页浏览器模块设计 23 4.3.1 Webkit引擎 23 4.3.2 QT调用Webkit类和实现方法 23 4.3.3网页浏览器GUI界面设计 25 4.4数码相框模块设计 25 4.4.1 QT的绘图设备 25 4.4.2 数码相框的接口函数 26 4.4.3 mount相关函数的使用 28 4.4.4 数码相框的GUI界面设计 29 4.5 时间设置模块设计 30 4.6 QT自定义风格样式设计 31 4.7 局域聊天模块设计 33 4.7.1 服务端设计 33 4.7.2 客户端设计 34 4.8 Tslib与触摸屏 35 4.8.1 触摸屏原理 35 4.8.2 Tslib 1.4的编译 37 4.8.3 TsLib的相关配置 37 4.9 本章小结 38 5 交叉编译与环境配置 39 5.1 Linux内核裁剪与烧写 39 5.2 编译QTE源码 40 5.