2016-06-11 204 views
4

我有一個簡單的JTable,它顯示了來自另一個JTable的行的詳細信息(列格式)。這很好地工作。但是,有時候,連續的文本很長,所以用戶最終不得不滾動瀏覽。如何在JTable行內換行

如何將文本換行並允許更改行高以顯示其中的所有文本。

下面是代碼:

table.getSelectionModel().addListSelectionListener(new ListSelectionListener() { 
      @Override 
      public void valueChanged(ListSelectionEvent e) { 
       if (!e.getValueIsAdjusting()) { 
        int selectedRow = table.getSelectedRow(); 
        DefaultTableModel newModel = new DefaultTableModel(); 
        String rowName = "Row: " + selectedRow; 
        newModel.setColumnIdentifiers(new Object[]{rowName}); 
        for (int i = 0; i < table.getModel().getColumnCount(); i++) { 
         newModel.addRow(new Object[]{table.getModel().getValueAt(selectedRow, i)}); 
        } 
        JTable newTable = new JTable(newModel) { 
         /** 
         * 
         */ 
         private static final long serialVersionUID = 1L; 

         @Override 
         public Dimension getPreferredScrollableViewportSize() { 
          return new Dimension(140, 240); 
         } 
        }; 
        newTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 
        newTable.setRowHeight(14, 30); 
        TableColumnAdjuster tcanewTable = new TableColumnAdjuster(newTable);   
        tcanewTable.setColumnHeaderIncluded(true); 
        tcanewTable.setColumnDataIncluded(true); 
        tcanewTable.setOnlyAdjustLarger(true); 
        tcanewTable.setDynamicAdjustment(true); 
        tcanewTable.adjustColumns(); 

        // Apply any custom renderers and editors 
        JOptionPane.showMessageDialog(frame, new JScrollPane(newTable), 
         rowName, JOptionPane.PLAIN_MESSAGE); 
       } 
      } 
     }); 
+0

安置自己的'SSCCE'演示該問題。您在過去被要求發佈每個問題的「SSCCE」:http://stackoverflow.com/a/37606317/131872 – camickr

回答

6

您可以通過使用JTextArea作爲TableCellRenderer爲表中的列做到這一點。例如:

static class WordWrapCellRenderer extends JTextArea implements TableCellRenderer { 
    WordWrapCellRenderer() { 
     setLineWrap(true); 
     setWrapStyleWord(true); 
    } 

    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
     setText(value.toString()); 
     setSize(table.getColumnModel().getColumn(column).getWidth(), getPreferredSize().height); 
     if (table.getRowHeight(row) != getPreferredSize().height) { 
      table.setRowHeight(row, getPreferredSize().height); 
     } 
     return this; 
    } 
} 

要在表中使用WordWrapCellRenderer

table.getColumnModel().getColumn(columnIndex).setCellRenderer(new WordWrapCellRenderer());