How to change the font of the title bar of the JFrame icon context menu?

Hello world.

I want to know how to change the font of the text that appears in the context menu is native to click with the right button on the icon that is completely left in the title bar of JFrames which use the default appearance for decoration (JFrame.setDefaultLookAndFeelDecorated (true); / / uses the metal L & F, theme "Océans").

I searched and found nothing. I thought I could use what I learned to https://forums.oracle.com/message/9221826, but I couldn't find something that worked.

Thanks to advance.t

After a few more messing around, I finally did! I love so much it makes me a little sad Java how it is difficult to do things like that. In any case, I found a method here to recursively change the fonts of all components in a JFileChooser, but it does not work on the JPopupMenu (now I know the name) who jumps to the top of the icon in the title bar. So I messed around with this method a few casting and was able to change the fonts of the JMenuItems:

public static void setSubComponentFont (Component comp[], Font font) {
    for (int x = 0; x < comp.length; x++) {
        if (comp[x] instanceof Container) {
            setSubComponentFont(((Container)comp[x]).getComponents(), font);
        }
        try {
            //comp[x].setFont(font);
            if (comp[x].toString().contains("JMenu")) {
                for (Component y : ((JMenu)comp[x]).getPopupMenu().getComponents()) {
                    if (y.toString().contains("JMenu")) {
                        y.setFont(font);
                    }
                }
            }
        } catch (Exception ex) {}
    }
}

I was inspired by this thread of utiliser.toString () .contains ().

I also did with nested loops, so the path to the menu items can be seen:

for (Component a : frame.getLayeredPane().getComponents()) {
    System.out.println(a.toString());
    if (a.toString().contains("MetalTitlePane")) {
        for (Component b : ((Container)a).getComponents()) {
            System.out.println(b.toString());
            if (b.toString().contains("SystemMenuBar")) {
                for (Component c : ((Container)b).getComponents()) {
                    System.out.println(c.toString());
                    for (Component d : ((JMenu)c).getPopupMenu().getComponents()) {
                        System.out.println(d.toString());
                        if (d.toString().contains("JMenu")) {
                            d.setFont(font);
                        }
                    }
                }
            }
        }
    }
}

Each System.out.println () gives an indication of what should go on what follows if State, so they should be used one at a time. This does not work for the title of the JFileChooser however font. When I have time I'll either look no further away inside or ask another question.

So, if someone else needs like I did, it's here. As a tip, System.out.println () and. toString() are your friends! That's how I learned what was contained in each object, and which path I needed to take to get to objects of interest.

Thanks anyway!

Tags: Java

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