Question

我是Java Swing的新手，我正在尝试创建一个应用程序。

我有一个MainApplication.java文件，它扩展了SingleFrameApplication以及我在哪里创建一个名为MainPanel的JPanel。此MainPanel有一个名为SplitPane的VERTICAL_SPLIT的AnimatingSplitPane。

在SplitPane的顶部，我正在添加另一个名为MainContainer的JPanel。在SplitPane的底部，我添加了一个名为FormContainer的JPanel。 MainContainer加载另一个名为DataSheetTable的类（一个具有JTable的JPanel）。

现在，当用户单击DataSheetTable的单元格时，我想将表单加载到FormContainer中。我不知道，我怎么能做到这一点。

例如，DatasheetTable有Column1，Column2和Column3。当用户单击Column1的任何单元格时，我需要将Form1显示到FormContanier中。如果它点击Column2单元格，那么我需要将Form2显示到FormContanier。

请通过一些示例代码告诉我，如何实现将表单即时加载到FormContainer。

！[提前谢谢。]

Image description for the issue

以下是App.java的示例代码

public class App extends SingleFrameApplication {
 @Override protected void startup() {
    configureDefaults();

     View view = getMainView();
     view.setComponent(createMainPanel());

    show(view);
 }

protected JComponent createMainPanel() {
    // Create main panel with demo selection on left and demo/source on right
    mainPanel = new JPanel();
    mainPanel.setLayout(new BorderLayout());


    // Create splitpane on right to hold demo and source code
    splitPane = new AnimatingSplitPane(JSplitPane.VERTICAL_SPLIT);
    mainPanel.add(splitPane, BorderLayout.CENTER);

    // Create panel to contain main panel
    mainContainer = new JPanel();
    splitPane.setTopComponent(mainContainer);

    DataSheetTable dataSheetTable = new DataSheetTable();
    mainContainer.add(dataSheetTable, BorderLayout.CENTER);
    dataSheetTable.start();

    formContainer = new JPanel(new BorderLayout());
    splitPane.setBottomComponent(formContainer);
    formContainer.add(new OrganizationForm());

    return mainPanel;
  }
}

以下是DataSheetTable.java文件的示例代码

public class DataSheetTable extends JPanel {

    ........
     controlPanel = createControlPanel();
     add(controlPanel, BorderLayout.NORTH);


    routingTable = new JTable(routingModel);

   .........

}

Answer 1

以下是拦截表格单元格点击事件的代码：

public class App extends JFrame {
    private DefaultTableModel model = new DefaultTableModel(new Object[][] {
            { "Value1", "Value2", "Value3" }, { "Object1", "Object2", "Object3" } }, new String[] {
            "Column1", "Column2", "Column3" });
    private JTable table = new JTable(model);
    private JPanel bottomPanel;

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                App a = new App();
                a.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                a.setLocationRelativeTo(null);
                a.setVisible(true);
            }
        });
    }

    public App() {
        JSplitPane pane = new JSplitPane();
        pane.setOrientation(SwingConstants.HORIZONTAL);
        pane.setLeftComponent(new JScrollPane(table));
        bottomPanel = new JPanel();
        bottomPanel.add(new JLabel("properties for column will be here"));
        pane.setRightComponent(bottomPanel);
        add(pane);

        ListSelectionListener listener = new ListSelectionListener() {
            public void valueChanged(ListSelectionEvent e) {
                int column = table.getSelectedColumn();
                int row = table.getSelectedRow();
                if(row != -1 && column != -1) {
                    bottomPanel.removeAll();
                    //Here you add your components/create appropriate panel
                    //e.g. bottomPanel.add(new PropertiesPanelForValue1(...));
                    bottomPanel.add(new JLabel("User selected column " + column + " and row " + row
                            + " with value: '" + table.getValueAt(row, column) + "'"));
                    bottomPanel.revalidate();
                }
            }
        };
        table.getSelectionModel().addListSelectionListener(listener);
        table.getColumnModel().getSelectionModel().addListSelectionListener(listener);

        pack();

        pane.setDividerLocation(0.3);
        setSize();
    }

    private void setSize() {
        double widthPart = 0.3;
        double heightPart = 0.5;
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int width = (int) (screenSize.getWidth() * widthPart);
        int height = (int) (screenSize.getHeight() * heightPart);
        setSize(width, height);
        Dimension windowSize = getSize();
        int x = (int) ((screenSize.getWidth() - windowSize.getWidth()) / 2);
        int y = (int) ((screenSize.getHeight() - windowSize.getHeight()) / 2);
        setLocation(x, y);
    }
}

修改查看您的更新：只需将DataSheetTable构造函数引用添加到FormContainer：

即可
formContainer = new JPanel(new BorderLayout()); splitPane.setBottomComponent(formContainer); formContainer.add(new OrganizationForm()); DataSheetTable dataSheetTable = new DataSheetTable(formContainer); mainContainer.add(dataSheetTable, BorderLayout.CENTER); dataSheetTable.start();

并在DataSheetTable添加侦听器：

public class DataSheetTable extends JPanel { public DataSheetTable(final FormContainer formContainer) { ........ controlPanel = createControlPanel(); add(controlPanel, BorderLayout.NORTH); routingTable = new JTable(routingModel); ListSelectionListener listener = new ListSelectionListener() {...}; routingTable.getSelectionModel().addListSelectionListener(listener); routingTable.getColumnModel().getSelectionModel().addListSelectionListener(listener); ......... } }

单击JTable Cell应将Form显示为Container

1 个答案: