如何打开JDesktopPane中心的JInternalFrame？ [英] How do I open a JInternalFrame centered in a JDesktopPane?

问题描述

我在 JDesktopPane 中添加了一堆 JInternalFrame ，因为用户选择通过以下方式打开各种功能菜单。但我希望内部框架在桌面窗格中心打开，而不是左上角，它们似乎是默认的。

I am adding a bunch of JInternalFrames into a JDesktopPane, as the user selects to open various features through the menus. But I would like the internal frames to open centered in the desktop pane, as opposed to the upper left, where they seem to default.

如何指定JInternalFrames打开中心，或者在打开后将它们移动到中心？

How can I specify that the JInternalFrames open centered, or move them to the center after opening?

jDesktopPane.add(jInternalFrame); // jInternalFrame is not centered!

推荐答案

供参考，这是我使用的解决方案，基于关于dogbane的建议：

For reference, here is the solution I used, based on dogbane's advice:

Dimension desktopSize = desktopPane.getSize();
Dimension jInternalFrameSize = jInternalFrame.getSize();
jInternalFrame.setLocation((desktopSize.width - jInternalFrameSize.width)/2,
    (desktopSize.height- jInternalFrameSize.height)/2);

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