如何获得JEditorPane突出显示一行的整个宽度(而不仅仅是文本)? [英] How do I get a JEditorPane to highlight the full width of a line (not just the text)?

问题描述

我正在尝试获取JEditorPane以突出显示显示行的整个宽度.我尝试过的所有示例都只突出文本内容.例如，如果我有这样的内容:

I'm trying to get a JEditorPane to highlight the full width of a displayed line. All the examples I've tried only highlight the textual content. For example if I have content such as this:

 ---------------------------------
|Here is some text                |
|some more text                   |
 ---------------------------------

在上方方框表示的JEditorPane中，然后突出显示第一行，仅突出显示此处是某些文本"(表示在下面的[和]之间).

within a JEditorPane represented by the box above, then highlighting the first row highlights only the 'Here is some text' (represented between [ and ] below).

 ---------------------------------
[Here is some text]               |
|some more text                   |
 ---------------------------------

我希望突出显示JEditorPane的整个宽度，如下所示:

I would like it to highlight the full width of the JEditorPane like the following:

 ---------------------------------
[Here is some text                ]
|some more text                   |
 ---------------------------------

有没有办法做到这一点?

Is there a way to do this?

推荐答案

这似乎不太复杂.我会说一下 代码挑战 .

This seems not too complicated. I would make that a little code-challenge.

只需创建自己的自定义荧光笔，即可扩展DefaultHighlighter.

Just create your own custom Highlighter, extending DefaultHighlighter.

重写paint()方法，仅保留矩形绘画的宽度不变:它将是面板的宽度.

Override the paint() method, and simply leave unchanged the width of the rectangle paint: it will be the width of the panel.

您将在 DZone代码段中找到完整的示例 :复制并运行它.告诉我这是否是你要的.它包括您在答案中提到的textPane.setSelectionColor(new Color(1.0f, 1.0f, 1.0f, 0.0f));附加内容.

替代文字http://www.freeimagehosting.net/uploads/94a3a990e4.png

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