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Material for LCUI 应用开发实战：图像查看器

Liu Chao

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Author

About the Author

Liu Chao

Web Frontend Developer, Author of the LCUI Open Source Project.

Contents

Table of Contents

介绍

  1. 实现的是什么程序？
  2. 你会学到什么？
  3. 适宜人群
  4. 前置知识

配置开发环境

  1. 系统要求
  2. 创建项目
  3. 构建项目
  4. 运行项目
  5. 打包和发布项目
  6. 配置编辑器
  7. 定制项目
  8. 小结
  9. Quiz 1

设计程序架构

  1. 功能需求分析
  2. 功能库
  3. 用户界面
  4. 小结

实现图像缩放控制器

  1. 数据结构
  2. 初始化
  3. 销毁
  4. 加载图像文件
  5. 计算自适应比例
  6. 设置缩放比例
  7. 设置可见区域位置
  8. 快捷缩放
  9. 状态检查
  10. 小结

实现图像文件收集器

  1. 通信机制
  2. 数据结构
  3. 初始化
  4. 销毁
  5. 事件通知
  6. 工作线程
  7. 加载文件
  8. 状态检测
  9. 文件切换
  10. 数据获取
  11. 小结
  12. Quiz 2

实现文件信息读取器

  1. 定义数据结构
  2. 初始化和销毁
  3. 加载信息
  4. 小结

实现主界面

  1. 拆分组件
  2. 设计布局
  3. 描述界面结构
  4. 添加样式
  5. 编译 TypeScript
  6. 显示界面
  7. 设置窗口标题
  8. 小结

构建图像查看界面

  1. 拆分组件
  2. 设计布局
  3. 选取图标
  4. 描述界面结构
  5. 显示界面
  6. 小结

显示图像

  1. 加载图像
  2. 集成控制器
  3. 更新窗口标题
  4. 处理工作目录和参数
  5. 小结

反馈加载状态

  1. 添加进度条
  2. 获取图像加载状态
  3. 显示错误信息
  4. 小结

添加图像缩放交互

  1. 快捷键
  2. 拖动图像
  3. 滚轮缩放
  4. 重置缩放
  5. 小结

添加图像切换交互

  1. 引入收集器
  2. 状态更新
  3. 响应切换按钮
  4. 响应按键
  5. 小结

添加工具栏交互

  1. 文件信息
  2. 缩放比例
  3. 缩放按钮
  4. 自适应按钮
  5. 全屏按钮
  6. 小结

添加滑块组件

  1. 创建组件
  2. 添加状态管理
  3. 添加数据绑定
  4. 实现拖拽滑动
  5. 小结

实现影片界面

  1. 创建组件
  2. 添加样式
  3. 定义数据结构
  4. 加载缩略图列表
  5. 选中缩略图
  6. 设置滚轮行为
  7. 添加切换按钮
  8. 小结

实现信息界面

  1. 创建组件
  2. 显示界面
  3. 获取文件信息
  4. 头部
  5. 名称
  6. 修改时间
  7. 大小信息
  8. 文件路径
  9. 小结

总结

  1. LCUI 的现状和未来
  2. 练习

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