Java列問題中的GridBagLayout

Question

我正在嘗試使用GridBagLayout布局管理器來實現此目的：

但是，我目前得到的是：

問題是橙色和棕色/灰色面板應該占據第二列，但似乎只想在運行代碼時占據第三列。

我用於布局的代碼：

 Container contentPane = form.getContentPane();
    contentPane.setLayout(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();

    JPanel pnlGame = new JPanel();
    pnlGame.setBackground(Color.green); //temp
    c.gridx = 0;
    c.gridy = 0;
    c.gridwidth = 2;
    c.gridheight = 2;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.85;
    c.weighty = 0.65;
    contentPane.add(pnlGame, c);

    JPanel pnlBuy = new JPanel();
    c.gridx = 2;
    pnlBuy.setBackground(Color.blue); //temp
    c.gridy = 0;
    c.gridwidth = 1;
    c.gridheight = 1;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.15;
    c.weighty = 0.46;
    contentPane.add(pnlBuy, c);

    JPanel pnlUpgrade = new JPanel();
    pnlUpgrade.setBackground(Color.yellow); //temp
    c.gridx = 2;
    c.gridy = 1;
    c.gridwidth = 1;
    c.gridheight = 1;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.15;
    c.weighty = 0.19;
    contentPane.add(pnlUpgrade, c);

    JPanel pnlStats = new JPanel();
    pnlStats.setBackground(Color.red); //temp
    c.gridx = 0;
    c.gridy = 2;
    c.gridwidth = 1;
    c.gridheight = 2;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.61;
    c.weighty = 0.35;
    contentPane.add(pnlStats, c);

    JPanel pnlSpeed = new JPanel();
    pnlSpeed.setBackground(Color.orange); //temp
    c.gridx = 1;
    c.gridy = 2;
    c.gridwidth = 2;
    c.gridheight = 1;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.38;
    c.weighty = 0.04;
    contentPane.add(pnlSpeed, c);

    JPanel pnlRounds = new JPanel();
    pnlRounds.setBackground(Color.gray); //temp
    c.gridx = 2;
    c.gridy = 3;
    c.gridwidth = 2;
    c.gridheight = 1;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.38;
    c.weighty = 0.31;
    contentPane.add(pnlRounds, c);

那么，我做錯了什么？ 對不起，如果我的英語有點糟糕，和/或我犯的錯誤是顯而易見的......早上20到5點，我度過了漫長的一天。 很快就應該打干草了。

更新：

看來，如果我改變棕色/灰色面板的網格寬度，一切似乎都正確對齊，但最終我的布局中存在一個令人討厭的差距。 這里：

i.imgur.com/6JUx2.png

該小組的代碼（包括Kevin S建議的修正案）：

JPanel pnlRounds = new JPanel();
pnlRounds.setBackground(Color.gray); //temp
c.gridx = 1;
c.gridy = 3;
c.gridwidth = 1;
c.gridheight = 1;
c.fill = GridBagConstraints.BOTH;
c.weightx = 0.38;
c.weighty = 0.31;
contentPane.add(pnlRounds, c);

那么，有什么我做錯了，或者這只是GridBagLayout的一些奇怪的行為，我將不得不忍受？

不幸的是，多虧了我編輯，我已經失去了Bala R在那里所有的嵌入。 所以，我害怕，我們回到圖像的鏈接。 現在似乎我不能發布超過兩個超鏈接，因此鏈接已在最后一個中被殺死，您需要復制並粘貼它。

謝謝，山姆

Answer 1

中間列中的所有組件也至少在另一列中。 因此，GridBagLayout將中間列的首選寬度計算為0，這就是您所看到的效果。

如果要確保中間列的寬度更大，請在其中放置一些僅在此列中的組件。

Answer 2

所以看起來你需要修復pnlRounds JPanel：

JPanel pnlRounds = new JPanel();
pnlRounds.setBackground(Color.gray); //temp
c.gridx = 1; // NEEDS TO BE 1 (NOT 2)
c.gridy = 3;
c.gridwidth = 2;
c.gridheight = 1;
c.fill = GridBagConstraints.BOTH;
c.weightx = 0.38;
c.weighty = 0.31;
contentPane.add(pnlRounds, c);

看起來你的問題是你的代碼中有c.gridx = 2 ，而c.gridx = 1應該是真正存在的。

另外，作為旁注，底部面板的重量不會增加到1.00，它們會增加到0.99。 只是認為你應該知道。

Answer 3

不完全適合你，但更像是一個臨時的解決方法。 如果你添加這個新的面板

    JPanel pnlTemp = new JPanel();
    pnlTemp.setBackground(Color.pink); //temp
    c.gridx = 1;
    c.gridy = 3;
    c.gridwidth = 1;
    c.gridheight = 1;
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 0.38;
    c.weighty = 0.31;
    contentPane.add(pnlTemp, c);

灰色面板后，它修復了布局。 不確定為什么，但也許這將有所幫助，直到你（或其他人）能夠找出正確的解決方案。 這個新的粉紅色面板不可見，但只是幫助修復布局。 這是布局后的樣子

Answer 4

你只是想讓布局工作嗎？

我做了一些修改。

 Container contentPane = form.getContentPane();
     contentPane.setLayout(new GridBagLayout());
     GridBagConstraints c = new GridBagConstraints();

     JPanel pnlGame = new JPanel();
     pnlGame.setBackground(Color.green); //temp
     c.gridx = 0;
     c.gridy = 0;
     c.gridwidth = 1; // one row
     c.gridheight = 1; // one column
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.60;
     c.weighty = 0.40;
     contentPane.add(pnlGame, c);

     // Added two new components
     // pnlgGame and pnlggGame

     // Covers up 2nd column and rows 0 and 1
     JPanel pnlgGame = new JPanel();
     pnlgGame.setBackground(Color.green); //temp
     c.gridx = 1;
     c.gridy = 0;
     c.gridwidth = 1; // one row
     c.gridheight = 2; // two column
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.20;
     c.weighty = 0.40;
     contentPane.add(pnlgGame, c);

     // Covers 2nd row and column 1 
     JPanel pnlggGame = new JPanel();
     pnlggGame.setBackground(Color.green); //temp
     c.gridx = 0;
     c.gridy = 1;
     c.gridwidth = 1;
     c.gridheight = 1;
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.60;
     c.weighty = 0.20;
     contentPane.add(pnlggGame, c);


     JPanel pnlBuy = new JPanel();
     pnlBuy.setBackground(Color.blue); //temp
     c.gridx = 2;
     c.gridy = 0;
     c.gridwidth = 1;
     c.gridheight = 1;
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.20;
     c.weighty = 0.40;
     contentPane.add(pnlBuy, c);

     JPanel pnlUpgrade = new JPanel();
     pnlUpgrade.setBackground(Color.yellow); //temp
     c.gridx = 2;
     c.gridy = 1;
     c.gridwidth = 1;
     c.gridheight = 1;
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.20;
     c.weighty = 0.20;
     contentPane.add(pnlUpgrade, c);

     JPanel pnlSpeed = new JPanel();
     pnlSpeed.setBackground(Color.BLUE); //temp
     c.gridx = 1;
     c.gridy = 2;
     c.gridwidth = 2;
     c.gridheight = 1;
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.40;
     c.weighty = 0.05;
     contentPane.add(pnlSpeed, c);

     JPanel pnlStats = new JPanel();
     pnlStats.setBackground(Color.red); //temp
     c.gridx = 0;
     c.gridy = 2;
     c.gridwidth = 1;
     c.gridheight = 2;
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.60;
     c.weighty = 0.40;
     contentPane.add(pnlStats, c);


     JPanel pnlRounds = new JPanel();
     pnlRounds.setBackground(Color.gray); //temp
     c.gridx = 1;
     c.gridy = 3;
     c.gridwidth = 2;
     c.gridheight = 1;
     c.fill = GridBagConstraints.BOTH;
     c.weightx = 0.40;
     c.weighty = 0.35;
     contentPane.add(pnlRounds, c);

     form.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     form.setVisible(true);