如何创建自定义 Swing 文档结构

发布于 2024-12-19 07:16:08 字数 1640 浏览 1 评论 0原文

我有一个 JEditorPane ，其中包含一个自定义 EditorKit 和一个自定义 Document （源自 DefaultStyledDocument）。

以下是 JEditorPane 内容的示例：

第一个段落

第二个段落

对于上面的示例，我得到了具有以下 XML 等效项的文档结构：

<root>
    <section>

        <paragraph>
            <content>first</content>
            <content bold="true">paragraph</content>
        </paragraph>

        <paragraph>
            <content>second paragraph</content>
            <content>\n</content>
        </paragraph>

    </section>
</root>

请注意，上面的标签名称是由 Element.getName() 函数确定的。

我的目的是通过自定义元素类型扩展此结构，以编辑样式文本以外的内容。

示例将编辑器扩展为音符编辑器获得如下所示的 XML 结构：

<root>
    <section>

        <paragraph>
            <content>first</content>
            <content bold="true">paragraph</content>
        </paragraph>

        <musicnotes>
            <bar>
                <note>C</note>
                <note>D</note>
                <note>E</note>
            </bar>
        </musicnotes>

    </section>
</root>

正如我所见，Style- 和 Paragraph-Elements 是根据 Document.insertString() 和 Document.setCharacterAttributes() 方法创建的。

我的问题是我不知道如何重写这些方法（或编写挂件）以不返回默认结构而是使用自定义元素种类。

我什至不知道这是否是正确的方法。我是否必须创建自己的文档接口实现才能创建自定义文档结构？

原文

I have a JEditorPane holding a custom EditorKit and a custom Document (derived from DefaultStyledDocument).

The following is an example for the content of the JEditorPane:

first paragraph

second paragraph

For the example above I get a document-structure with the following XML-equivalent:

<root>
    <section>

        <paragraph>
            <content>first</content>
            <content bold="true">paragraph</content>
        </paragraph>

        <paragraph>
            <content>second paragraph</content>
            <content>\n</content>
        </paragraph>

    </section>
</root>

Note that the tag names above are determined by the Element.getName() function.

My intention is, to extend this structure by custom element types to edit content other than styled text.

An example would be extending the editor to be a music-note editor to get an XML-structure like this:

<root>
    <section>

        <paragraph>
            <content>first</content>
            <content bold="true">paragraph</content>
        </paragraph>

        <musicnotes>
            <bar>
                <note>C</note>
                <note>D</note>
                <note>E</note>
            </bar>
        </musicnotes>

    </section>
</root>

As I see it, the Style- and Paragraph-Elements are created upon Document.insertString() and Document.setCharacterAttributes() methods.

My problem is that I have no clue how to override these methods (or write pendants) to not to go back to the default structure but to use custom element kinds.

At all I don't even know if this is the correct approach. Do I have to create my very own Implementation of the Document-interface to create a custom document structure?

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