更新其他类别的LAF [英] Updating the LAF of a different class

问题描述

在我编写的战舰"程序中，我包括了将程序的外观"更改为SystemDefault，"Metal"(Java默认)或"Motif"(也包括在Java中)的可能性.如果您从JComboBox中选择所需的LAF(->更改预定义的字符串lookFeel)并按确认按钮，则会调用UIManager.setLookAndFeel(lookFeel)，还会调用SwingUtilities.updateComponentTreeUI(this)和方法updateUI()并具有以下内容代码:

In a "Battleship" program I wrote, I included the possibility to change the "look and feel" of a program to SystemDefault, "Metal" (Java Default) or "Motif" (also included in Java). If you choose the desired LAF from a JComboBox (--> changes a predefined String, lookFeel) and press a confirm button, UIManager.setLookAndFeel(lookFeel) is called, and also SwingUtilities.updateComponentTreeUI(this) and the method updateUI() with the following code:

public static void updateUI() {
        //SwingUtilities.updateComponentTreeUI();
        SwingUtilities.updateComponentTreeUI(colorChooser);
        SwingUtilities.updateComponentTreeUI(shipChooser);
        SwingUtilities.updateComponentTreeUI(guide);
        SwingUtilities.updateComponentTreeUI(menu_bar);
        SwingUtilities.updateComponentTreeUI(menu_general);
        SwingUtilities.updateComponentTreeUI(menu_customization);
        SwingUtilities.updateComponentTreeUI(lafChooser);

        SwingUtilities.updateComponentTreeUI(LAN.lanframe);
        SwingUtilities.updateComponentTreeUI(LAN.hostframe);
        SwingUtilities.updateComponentTreeUI(LAN.joinframe);
    }

但是，此代码不会更新属于不同类的其他窗口.因此，如果我启动主程序，然后更改外观，这些窗口将不会受到影响.那些实际上创建框架的类不是问题，但是我的主程序只是扩展了JFrame(我可能不会再做某事，但是当我开始编写该程序时，我是Java的新手). 现在我的问题是:如何更改此类的LAF? 预先感谢！

However, this code will not update other windows that are part of a different class. Hence, if I launch my main program, and then change the look&feel, these windows won't be affected. Those classes that actually create a frame are not a problem, but my main program just extends JFrame (something I probably wouldn't do again, but I was entirely new to Java when I started writing this program). Now my question is: how can I change the LAF of this class? Thanks in advance!

推荐答案

如果此处引用了一个完整的示例.

If the result of getSupportsWindowDecorations() is true for a given LookAndFeel, you can invoke setWindowDecorationStyle() on the JRootPane. A complete example is cited here in UIManager Defaults.

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