向BorderLayout.SOUTH添加JTextPane会导致JScrollPane滚动 [英] Adding a JTextPane to BorderLayout.SOUTH causes JScrollPane to scroll

问题描述

我有一个包含在JScrollPane中的JPanel。 JPanel的组件已添加到其NORTH，CENTER，WEST和SOUTH区域（BorderLayout）。

I have a JPanel which is contained within a JScrollPane. The JPanel has components added to it's NORTH, CENTER, WEST and SOUTH areas (BorderLayout).

当我将JTextPane添加到SOUTH位置时，滚动窗格会滚动显示文本。我不希望滚动窗格从其最顶端位置移动。我该如何防止这种情况？

When I add a JTextPane to the SOUTH position, the scroll pane scrolls to show the text. I do not want the scroll pane to move from its topmost position. How can I prevent this?

推荐答案

如果没有更多细节，您可以尝试将默认插入符号设置为 NEVER_UPDATE ，自Java 5起可用。

Absent more details, you can try setting the default caret to NEVER_UPDATE, available since Java 5.

JTextPane jtp = new JTextPane();
DefaultCaret caret = (DefaultCaret) jtp.getCaret();
caret.setUpdatePolicy(DefaultCaret.NEVER_UPDATE);

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