如何在 Qt 中使用 QSyntaxHighlighter 类在 QML TextEdit 上实现富文本逻辑? [英] How to implement rich text logic on QML TextEdit with QSyntaxHighlighter class in Qt?

问题描述

我的 QML 文件中有一个 TextEdit，我有一个 QSyntaxHighlighter C++ 类.我想在 C++ 类中指定突出显示逻辑并将其应用于 TextEdit，但我不确定如何在 QML 对象和 C++ 类之间建立连接.您还可以提供一些示例代码吗?我找不到如何使用 Qt 文档来实现它.

I have a TextEdit in my QML file and I have a QSyntaxHighlighter C++ class. I want to specify the highlighting logic in the C++ class and apply it to the TextEdit, but I am not sure how to make the connection between the QML object and the C++ class. Can you also please provide some sample code? I couldn't find how to implement it with the Qt documentation.

推荐答案

你可以使用TextEdit::textDocument，它包含 QQuickTextDocument，获取对底层 QTextDocument 的访问权限，您可以将其传递给 QSyntaxHighlighter 构造函数.

You can use Text:textDocument, which holds an instance of QQuickTextDocument, to gain access to the underlying QTextDocument that you can pass to QSyntaxHighlighter constructor.

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