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构造基于Coretext的排版引擎

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Avatar for cngump cngump
May 06, 2013
Programming
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 构造基于Coretext的排版引擎

构造基于Coretext的排版引擎

Avatar for cngump

cngump

May 06, 2013
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Transcript

  1. 构造基于Coretext的排版引擎  

  2. Coretext是什么？   Core  Text  framework  是iOS  及  Mac  OS  X下底层的

    文字处理及字体渲染的API集合，简洁、高效。   CTLine  CTRun  CTFont   Core  Text  类   CTFramese=er   给定文本及页面参数，在页 的层级进行自动化排版＊   CTTypese=er   给定文本，在行的层级执行 断行等排版工作＊   CTFrame   页对象＊    CTLine   行对象   CTRun   字形集合对象   CTFont     字体对象  

  3. 从html到矢量图形集合的映射   Css2.0全面兼容、3.0部分兼容   渲染效率(web  kit)、版式处理效率(javascript)  

  4. 断行，行首、末标点规则  

  5. 图片甩版  

  6. 自定义控件、事件  

  7. NSRange    <-­‐>      Glyph   HTML文本   NSA=ributedString

      View   CTLine(s)   解析 （自定 义标签）   生成（内 存及耗时 优化）   绘图（处 理重绘）   字 形  

  8. 引擎模块   编辑器（web）   长文本索引生成器（命令行程序）   类库（.a,  framework）   <

      >  

  9. 感谢