[問題] 一個 GridBagLayout 的問題

[eliang ()]

Hi, 請問一下,

我想用 GridBagLayout 排出下面的面版:

┌────┬────┬────┐
│Button 1│Button 2│Button 3│
├────┴─┬──┴────┤
│  Button 4  │   Button 5   │
└──────┴───────┘

我使用以下程式碼:

    public static void main(String[] args)
    {
        JPanel panel = new JPanel();
        panel.setLayout(new GridBagLayout());

        JButton b1 = new JButton("Button 1");
        JButton b2 = new JButton("Button 2");
        JButton b3 = new JButton("Button 3");
        JButton b4 = new JButton("Button 4");
        JButton b5 = new JButton("Button 5");

        GridBagConstraints c = new GridBagConstraints();

        c.fill = GridBagConstraints.HORIZONTAL;

        c.gridx = 0;
        c.gridy = 0;
        c.gridwidth = 2;
        panel.add(b1, c);

        c.gridx = 2;
        panel.add(b2, c);

        c.gridx = 4;
        panel.add(b3, c);

        c.gridx = 0;
        c.gridy = 1;
        c.gridwidth = 3;
        panel.add(b4, c);

        c.gridx = 3;
        panel.add(b5, c);

        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(panel);
        frame.setSize(400, 400);
        frame.setVisible(true);
    }


結果出來變成:

┌────┬────┬────┐
│Button 1│Button 2│Button 3│
├────┼────┴────┤
│Button 4│    Button 5      │
└────┴─────────┘

我想半天仍不知我錯在哪裡,

所以想來請教板上的各位, 先謝謝了!

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◆ From: 220.132.133.199
※ 編輯: eliang          來自: 220.132.133.199      (05/04 21:44)
推 slalala:你沒有錯啊 gridbay 就是這樣啊(還是我搞錯 囧)
→ eliang:我希望Button4和Button5的分隔線剛好位於Button2的中線
推 AI3767:(2,3)最小公倍數6, 上面各占2個, 下面各占3個,應該就ok了
→ eliang:我是這樣寫沒錯,上排用gridwith=2,下排用gridwith=3
→ eliang:更正: 是 gridwidth 才對