我已经创建了一个带有自定义表格渲染和自定义单元格编辑器的JTable,可以在图像中给出结果
我使用扩展JPanel的单独的类创建了第一个表格单元格中显示的面板.并添加表值,
tbl.setCellEditor(new customCell());
tbl.getColumnModel().getColumn(0).setCellRenderer(new customCell());
DefaultTableModel dtm = (DefaultTableModel) tbl.getModel();
Vector v = new Vector();
v.add(new Panel());
v.add("Test");
dtm.addRow(v);
v.clear();
v.add(new Panel());
v.add("Test 2");
dtm.addRow(v);
而这就是我的table自定义类来创建这个表,
class customCell extends DefaultTableModel implements TableCellRenderer,TableCellEditor {
public Component getTableCellRendererComponent(JTable table,Object value,boolean isSelected,boolean hasFocus,int row,int column) {
Panel p = new Panel();
table.setRowHeight(row,p.getHeight());
return p;
}
public Component getTableCellEditorComponent(JTable table,int column) {
return new Panel();
}
public Object getCellEditorValue() {
return "";
}
public boolean isCellEditable(EventObject anEvent) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean shouldSelectCell(EventObject anEvent) {
return true;
}
@Override
public boolean isCellEditable(int rowIndex,int columnIndex) {
return true;
}
public boolean stopCellEditing() {
return true;
}
public void cancelCellEditing() {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addCellEditorListener(CellEditorListener l) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void removeCellEditorListener(CellEditorListener l) {
throw new UnsupportedOperationException("Not supported yet.");
}
}
我的问题被认为是面板显示,因为我预计我无法输入文本字段或更改复选框或单击按钮.请告诉我如何解决这个问题.
解决方法
必须为已经可见的JPanel添加适当的LayoutManager,可编辑/非可编辑属性
让我们享受吧
import java.awt.*;
import java.awt.event.*;
import java.util.EventObject;
import javax.swing.*;
import javax.swing.table.*;
public class PanelInTable {
private JFrame frame;
private JTable compTable = null;
private PanelTableModel compModel = null;
private JButton addButton = null;
public static void main(String args[]) {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
//UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception fail) {
}
SwingUtilities.invokelater(() -> {
new PanelInTable().makeUI();
});
}
public void makeUI() {
compTable = CreateCompTable();
JScrollPane CompTableScrollpane = new JScrollPane(compTable,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
JPanel bottomPanel = CreateBottomPanel();
frame = new JFrame("Comp Table Test");
frame.setDefaultCloSEOperation(JFrame.EXIT_ON_CLOSE);
frame.add(CompTableScrollpane,BorderLayout.CENTER);
frame.add(bottomPanel,BorderLayout.soUTH);
frame.setPreferredSize(new Dimension(800,400));
frame.setLocation(150,150);
frame.pack();
frame.setVisible(true);
}
public JTable CreateCompTable() {
compModel = new PanelTableModel();
compModel.addRow();
JTable table = new JTable(compModel);
table.setRowHeight(new CompCellPanel().getPreferredSize().height);
table.setTableHeader(null);
PanelCellEditorRenderer PanelCellEditorRenderer = new PanelCellEditorRenderer();
table.setDefaultRenderer(Object.class,PanelCellEditorRenderer);
table.setDefaultEditor(Object.class,PanelCellEditorRenderer);
return table;
}
public JPanel CreateBottomPanel() {
addButton = new JButton("Add Comp");
addButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
Object source = ae.getSource();
if (source == addButton) {
compModel.addRow();
}
}
});
JPanel panel = new JPanel(new GridBagLayout());
panel.add(addButton);
return panel;
}
}
class PanelCellEditorRenderer extends AbstractCellEditor implements
TableCellRenderer,TableCellEditor {
private static final long serialVersionUID = 1L;
private CompCellPanel renderer = new CompCellPanel();
private CompCellPanel editor = new CompCellPanel();
@Override
public Component getTableCellRendererComponent(JTable table,int column) {
renderer.setComp((Comp) value);
return renderer;
}
@Override
public Component getTableCellEditorComponent(JTable table,int column) {
editor.setComp((Comp) value);
return editor;
}
@Override
public Object getCellEditorValue() {
return editor.getComp();
}
@Override
public boolean isCellEditable(EventObject anEvent) {
return true;
}
@Override
public boolean shouldSelectCell(EventObject anEvent) {
return false;
}
}
class PanelTableModel extends DefaultTableModel {
private static final long serialVersionUID = 1L;
@Override
public int getColumnCount() {
return 1;
}
public void addRow() {
super.addRow(new Object[]{new Comp(0,"","")});
}
}
class Comp {
public int type;
public int relation;
public String lower;
public String upper;
public Comp(int type,int relation,String lower,String upper) {
this.type = type;
this.relation = relation;
this.lower = lower;
this.upper = upper;
}
}
class CompCellPanel extends JPanel {
private static final long serialVersionUID = 1L;
private JLabel labelWith = new JLabel("With ");
private JComboBox typeCombo = new JComboBox(new Object[]
{"height","length","volume"});
private JComboBox relationCombo = new JComboBox(new Object[]
{"above","below","between"});
private JTextField lowerField = new JTextField();
private JLabel labelAnd = new JLabel(" and ");
private JTextField upperField = new JTextField();
private JButton removeButton = new JButton("remove");
public CompCellPanel() {
setLayout(new BoxLayout(this,BoxLayout.X_AXIS));
relationCombo.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
enableupper(relationCombo.getSelectedindex() == 2);
}
});
enableupper(false);
removeButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JTable table = (JTable) SwingUtilities.getAncestorOfClass(
JTable.class,(Component) e.getSource());
int row = table.getEditingRow();
table.getCellEditor().stopCellEditing();
((DefaultTableModel) table.getModel()).removeRow(row);
}
});
add(labelWith);
add(typeCombo);
add(relationCombo);
add(lowerField);
add(labelAnd);
add(upperField);
add(Box.createHorizontalStrut(100));
add(removeButton);
}
private void enableupper(boolean enable) {
labelAnd.setEnabled(enable);
upperField.setEnabled(enable);
}
public void setComp(Comp Comp) {
typeCombo.setSelectedindex(Comp.type);
relationCombo.setSelectedindex(Comp.relation);
lowerField.setText(Comp.lower);
upperField.setText(Comp.upper);
enableupper(Comp.relation == 2);
}
public Comp getComp() {
return new Comp(typeCombo.getSelectedindex(),relationCombo.getSelectedindex(),lowerField.getText(),upperField.getText());
}
}