JTabbedPane - 在标签周围设置默认边框..？ [英] JTabbedPane - set default border around tabs..?

问题描述

我在我的应用程序中使用了JTabbedPane。我添加了两个选项卡，它们是自定义类ContentPanel的实例。这扩展了JPanel并设置了背景，边框等等。基本上它意味着我不必设置我想要应用此颜色方案的每个JPanel的属性。我注意到它们的边框不仅出现了，而且还有另一个边框（我认为是蓝色 - 至少在我的屏幕上）出现在这个边框周围，连接到标签选择器本身（即你点击的按钮以获得适当的观点）。我想改变这个边界，因为它看起来很奇怪对金色/棕色配色方案。有谁知道如何做到这一点？我尝试过JTabbedPane.setBorder（边框b），但这不起作用。这只是围绕整个事物设置一个边框，包括选项卡选择器..不是我想要的。

I am using a JTabbedPane in my application. I have added two tabs which are instances of a custom class "ContentPanel". This extends JPanel and sets the background, border etc etc. Basically it means I dont have to set the properties of each JPanel I want to apply this colour scheme to. I notice that not only does their border appear but another border (which, I think, is blue - at least on my screen) appears around this border, connected to the tab "selectors" themselves (i.e. the buttons you click on to get the appropriate view). I would like to change this border as it just looks odd against a gold / brown colour scheme. Does anyone have any idea how to do this? I have tried JTabbedPane.setBorder(Border b) but that doesnt work. That simply sets a border around the entire thing, including the tab selectors.. not what I want.

任何帮助都将非常感谢。

Any help with this would be greatly appreciated.

推荐答案

这些颜色在外观中定义。如果你看一下 BasicTabbedPaneUI 的代码，你会发现 installDefaults（）设置了一堆 protected Color 实例变量。它们在L& F中定义的键也可在此处获得。

These colors are defined in the Look and Feel. If you look at the code for BasicTabbedPaneUI, you will notice that installDefaults() sets a bunch of protected Color instance variables. The keys they are defined against in the L&F are also available here.

protected void installDefaults() {
    LookAndFeel.installColorsAndFont(tabPane, "TabbedPane.background",
                                "TabbedPane.foreground", "TabbedPane.font");     
    highlight = UIManager.getColor("TabbedPane.light");
    lightHighlight = UIManager.getColor("TabbedPane.highlight");
    shadow = UIManager.getColor("TabbedPane.shadow");
    darkShadow = UIManager.getColor("TabbedPane.darkShadow");
    //...
    // a lot more stuff
    //...
}

如果您不想定义自己的L& F，您可以在选项卡式窗格上设置自定义UI委托：

If you do not want to go as far as define your own L&F, you have the ability to set a custom UI delegate on your tabbed pane:

myTabbedPane.setUI(new BasicTabbedPaneUI() {
   @Override
   protected void installDefaults() {
       super.installDefaults();
       highlight = Color.pink;
       lightHighlight = Color.green;
       shadow = Color.red;
       darkShadow = Color.cyan;
       focus = Color.yellow;
   }
});

您当然可以更改这些颜色设置。如上所述，您将看到在哪里使用哪些变量。

you may of course want to change those color settings. As set, you will see which vars are used where.

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