GridBagLayout锚点

时间：2014-08-04 09:16:55

标签： java swing jpanel layout-manager gridbaglayout

我正在尝试使用Anchor来设置组件的对齐方式。 这是我的代码：

public void intiConOpt()
{
    /*********************************** connection options ****************************************/

    conOptGBC.insets = new Insets(5, 5, 5, 5);
    conOptGBC.weightx = 1.0;
    conOptGBC.weighty = 1.0;
    conOptGBC.anchor = GridBagConstraints.NORTHWEST;
    conOpt = new JPanel();
    conOpt.setLayout(new GridBagLayout());

    //////////////////////////////////////////cycle time////////////////////////////////////////////

    readPeriodLabel = new JLabel("Node read cycle time:");
    conOptGBC.gridx = 0;
    conOptGBC.gridy = 0;
    conOpt.add(readPeriodLabel, conOptGBC);

    readPeriodNumberModel = new SpinnerNumberModel();
    readPeriodSpinner = new JSpinner(readPeriodNumberModel);
    JSpinner.NumberEditor readPeriodEditor = new JSpinner.NumberEditor(readPeriodSpinner,"###");
    readPeriodSpinner.setEditor(readPeriodEditor);
    readPeriodNumberModel.setValue(TopologyMain.settings.getSettingsList().get("nodeReadingCycleTime"));

    readPeriodSpinner.setPreferredSize(new Dimension(40, 20));
    conOptGBC.gridx = 1;
    conOptGBC.gridy = 0;
    conOpt.add(readPeriodSpinner, conOptGBC);

    readPeriodLabel2 = new JLabel("<html><font size=2>(4-180 sec)</font></html>");
    conOptGBC.gridx = 2;
    conOptGBC.gridy = 0;
    conOpt.add(readPeriodLabel2, conOptGBC);

    ///////////////////////////////////////////time out////////////////////////////////////////////

    cliTimeoutLabel = new JLabel("CLI response timeout:");
    conOptGBC.gridx = 0;
    conOptGBC.gridy = 1;
    conOpt.add(cliTimeoutLabel, conOptGBC);

    cliTimeoutNumberModel = new SpinnerNumberModel();
    cliTimeoutSpinner = new JSpinner(cliTimeoutNumberModel);
    JSpinner.NumberEditor cliTimeoutEditor = new JSpinner.NumberEditor(cliTimeoutSpinner,"###");
    cliTimeoutSpinner.setEditor(cliTimeoutEditor);
    cliTimeoutNumberModel.setValue(TopologyMain.settings.getSettingsList().get("cliTimeout") /10);

    cliTimeoutSpinner.setPreferredSize(new Dimension(40, 20));
    conOptGBC.gridx = 1;
    conOptGBC.gridy = 1;
    conOpt.add(cliTimeoutSpinner, conOptGBC);

    cliTimeoutLabel2 = new JLabel("<html><font size=2>(8-999 sec)</font></html>");
    conOptGBC.gridx = 2;
    conOptGBC.gridy = 1;
    conOpt.add(cliTimeoutLabel2, conOptGBC);

    ///////////////////////////////////////busy response//////////////////////////////////////////////

    cliBusySleepLabel = new JLabel("CLI busy check time:");
    conOptGBC.gridx = 0;
    conOptGBC.gridy = 2;
    conOpt.add(cliBusySleepLabel, conOptGBC);

    cliBusySleepNumberModel = new SpinnerNumberModel();
    cliBusySleepSpinner = new JSpinner(cliBusySleepNumberModel);
    JSpinner.NumberEditor cliBusySleepEditor = new JSpinner.NumberEditor(cliBusySleepSpinner,"###");
    cliBusySleepSpinner.setEditor(cliBusySleepEditor);
    cliBusySleepNumberModel.setValue(TopologyMain.settings.getSettingsList().get("cliBusySleep") /1000);

    cliBusySleepSpinner.setPreferredSize(new Dimension(40, 20));
    conOptGBC.gridx = 1;
    conOptGBC.gridy = 2;
    conOpt.add(cliBusySleepSpinner, conOptGBC);

    cliBusySleepLabel2 = new JLabel("<html><font size=2>(1-999 sec)</font></html>");
    conOptGBC.gridx = 2;
    conOptGBC.gridy = 2;
    conOpt.add(cliBusySleepLabel2, conOptGBC);
    conOpt.setVisible(false);
    contentPanel.add(conOpt);
}

我的问题是GridBagConstraints锚没有效果，我的组件仍然在面板的中心。

屏幕截图：http://postimg.org/image/5nopucusj/

有什么想法吗？谢谢！

1 个答案:

答案 0 :(得分：3)

anchor属性工作正常，您遇到的问题是...... 

conOptGBC.weightx = 1.0;
conOptGBC.weighty = 1.0;

问题是，您已经要求GridBagLayout为每列分配相等数量的空间，因此它们将占用，在这种情况下，它们是第三列，这是可以考虑的。

删除你得到的conOptGBC.weightx = 1.0; ...

Form

有点难以看到，但如果我们在...中添加一些指南

Grid

你可以看到这些字段开始与西北方向对齐......

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