Qt的最好的方式来显示非常大的富文本？ [英] Qt's best way to display very large rich text?

问题描述

我需要显示非常大的日志，使用HTML标记来标记不同类型的数据。

I need to display very large logs that uses HTML tags for marking different types of data.

使用QTextEdit和QTextBrowser真的会减慢应用程序，尤其是追加操作。我真的很想保持QTextEdit的界面和能力。

Using QTextEdit and QTextBrowser really slows the application, especially on append operations. I would really like to keep the QTextEdit interface and abilities.

我见过的人实现了自己的风格的TextEdit来提高性能，但我漫游，如果有人解决了问题使用Qt工具。我想到了使用Model / View框架根据需要加载数据，但是它不是我想要的东西。

I've seen people that implemented their own flavor of TextEdit to improve performance, but I wandered if anyone solved this issue using "Qt" tools. I thought about using the Model/View framework to load data on demand but it is not quite what it was intended for I think.

也许子类化QTextEdit并覆盖它的一些

Maybe subclassing QTextEdit and override some of its slots for scrolling...

如果有人遇到这个问题并解决了问题，我将非常感激。

If anyone encountered this issue and solved it, I would appreciate some tips.

>感谢。

推荐答案

由于你的日志大概是在某个级别的表格，所以Model / View框架听起来像是可以工作您。也许你可以尝试使用 QListView 和 QGraphicsTextItem ：

Since your log is presumably tabular at some level, then the Model/View framework sounds like it could work for you. Perhaps you could try using a QListView with QGraphicsTextItem:

http://doc.qt.nokia.com/latest/qgraphicstextitem.html

它有设置/获取HTML的方法：

It has methods for setting/getting the HTML:

http://doc.qt.nokia.com/latest/qgraphicstextitem.html#setHtml

http://doc.qt.nokia .com / latest / qgraphicstextitem.html＃toHtml

你会得到一些好处和麻烦从这样写。但你一定能够巧妙的插入和附加速度。

You'll get some benefits and hassles from writing it that way. But you should certainly be able to finesse the insertions and append speed.

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