在Swing JTextArea上弹出文本鼠标悬停? [英] Text-mouseover popups over a Swing JTextArea?
问题描述
是否有任何内容允许您在单个单词或Swing JTextArea中的字母上显示一个小文本弹出窗口(如工具提示)? (或具有类似功能的JTextArea替代方案。)
Is there anything out there that allows you to show a small text popup window (like a tooltip) over individual words or letters in a Swing JTextArea? (Or a JTextArea alternative with similar functionality.)
我需要的应该像工具提示一样,换句话说,只有在鼠标悬停在单词上方后才会显示弹出文本一两秒钟,一旦鼠标离开,它会自动消失。当然,这里棘手的部分是我希望它在文本中的字符/单词级别,而不是在组件级别...任何建议?
What I need should behave like a tooltip, in other words only display the popup text after the mouse has hovered over the word for a second or two, and it would vanish automatically once the mouse moves away. Of course the tricky part here is that I want it at the character/word level within the text, not at the component level... any suggestions?
推荐答案
您可以覆盖 getToolTipText(鼠标事件事件)
根据需要。
You can override getToolTipText(Mouse Event event)
as needed.
附录:< a href =http://download.oracle.com/javase/6/docs/api/javax/swing/text/JTextComponent.html> JTextComponent
, JTextArea
的父级通过两种方法提供位置信息: modelToView()
和 viewToModel()
一>。 后者应该让您将鼠标位置转换为文档偏移量。
Addendum: JTextComponent
, the parent of JTextArea
provides location information via two methods: modelToView()
and viewToModel()
. The latter should let you translate the mouse location into a document offset.
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