使 Swing-JTabbedPane-Tab 填充其容器的整个宽度的最简单方法

发布于 2024-10-16 00:32:09 字数 336 浏览 1 评论 0原文

我在 JPanel 中有一个 JTabbedPane (顶部有水平选项卡),我希望此 JTabbedPane 的选项卡适合 JPanel 的整个宽度,这样如果只有一个选项卡,该选项卡将填充整个宽度;当有两个选项卡时,每个选项卡将恰好填充一半,依此类推。

使用自定义 JComponent 作为选项卡的标题并设置 PreferredSize 没有解决方案,因为 JTabbedPanel 似乎在标题组件周围放置了某种边框。

有没有比扩展和/或重写部分/全部 JTabbedPane 更简单的解决方案?

(也许我应该补充一点,当我谈论选项卡时,我指的是这些您可以单击以切换显示的组件的导航组件,而不是组件本身。)

I'm having a JTabbedPane (with horizontal tabs on the top) in a JPanel, and I want the tabs of this JTabbedPane to fit the whole width of the JPanel, so that if there's only one tab, the tab would fill the whole width; when there are two tabs, each tab would fill excactly the half, and so on.

Using a custom JComponent as a the title of the tabs and setting the PreferredSize there isn't a solution since it seems that JTabbedPanel puts some sort of border around the title-components.

Is there any easier solution than extending and/or rewriting part/all of JTabbedPane?

(Maybe I should add that when I'm talking about tabs, I refer to these navigational components you can click on to switch the component shown, and not the components themselves.)

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天冷不及心凉 2024-10-23 00:32:09

测试这段代码:

public class Tabs extends javax.swing.JFrame {


    public Tabs() {
        initComponents();
    }


       private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jTabbedPane1 = new javax.swing.JTabbedPane();
        jPanel2 = new javax.swing.JPanel();
        jPanel3 = new javax.swing.JPanel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setLayout(new java.awt.BorderLayout());

        jPanel2.setLayout(new java.awt.BorderLayout());


        jTabbedPane1.addTab("tab1", jPanel2);


        jPanel3.setLayout(new java.awt.BorderLayout());


        jTabbedPane1.addTab("tab2", jPanel3);

        jPanel1.add(jTabbedPane1, java.awt.BorderLayout.CENTER);

        add(jPanel1);

        pack();
    }


    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Tabs().setVisible(true);
            }
        });
    }


    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JTabbedPane jTabbedPane1;
}

Test this code :

public class Tabs extends javax.swing.JFrame {


    public Tabs() {
        initComponents();
    }


       private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jTabbedPane1 = new javax.swing.JTabbedPane();
        jPanel2 = new javax.swing.JPanel();
        jPanel3 = new javax.swing.JPanel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setLayout(new java.awt.BorderLayout());

        jPanel2.setLayout(new java.awt.BorderLayout());


        jTabbedPane1.addTab("tab1", jPanel2);


        jPanel3.setLayout(new java.awt.BorderLayout());


        jTabbedPane1.addTab("tab2", jPanel3);

        jPanel1.add(jTabbedPane1, java.awt.BorderLayout.CENTER);

        add(jPanel1);

        pack();
    }


    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Tabs().setVisible(true);
            }
        });
    }


    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JTabbedPane jTabbedPane1;
}
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