groupableheaderexample.java

JGraph扩展应用。自定义Renderer,自定义视图View实现自定义工作流控件

/**
 * 
 */
package flow.graph.test;

import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumnModel;

/**
 * @author Administrator
 *
 */
public class GroupableHeaderExample extends JFrame {
	  GroupableHeaderExample() {
		  super( "Groupable Header Example" );
		  DefaultTableModel dm = new DefaultTableModel();
		  dm.setDataVector(new Object[][]{
				  {"119","foo","bar","ja","ko","zh"},
				  {"911","bar","foo","en","fr","pt"}},
				  new Object[]{"SNo.","1","2","Native","2","3"}
		  );
		  JTable table = new JTable( dm ) {
			  protected JTableHeader createDefaultTableHeader() {
				  return new GroupableTableHeader(columnModel);
			  }
		  };
		  TableColumnModel cm = table.getColumnModel();
		  ColumnGroup g_name = new ColumnGroup("Name");
		  g_name.add(cm.getColumn(1));
		  g_name.add(cm.getColumn(2));
		  ColumnGroup g_lang = new ColumnGroup("Language");
		  g_lang.add(cm.getColumn(3));
		  ColumnGroup g_other = new ColumnGroup("Others");
		  g_other.add(cm.getColumn(4));
		  g_other.add(cm.getColumn(5));
		  g_lang.add(g_other);
		  GroupableTableHeader header = (GroupableTableHeader)table.getTableHeader();
		  header.addColumnGroup(g_name);
		  header.addColumnGroup(g_lang);
		  TableCellRenderer renderer =  new DefaultTableCellRenderer() {
			  public Component getTableCellRendererComponent(JTable table, Object value,
					  boolean isSelected, boolean hasFocus, int row, int column) {
				  JTableHeader header = table.getTableHeader();
				  if (header != null) {
					  setForeground(header.getForeground());
					  setBackground(header.getBackground());
					  setFont(header.getFont());
				  }
				  setHorizontalAlignment(JLabel.CENTER);
				  setText((value == null) ? "" : value.toString());
				  setBorder(UIManager.getBorder("TableHeader.cellBorder"));
				  return this;
			  }
		  };
		  TableColumnModel model = table.getColumnModel();
		  for (int i=0;i<model.getColumnCount();i++) {
			  model.getColumn(i).setHeaderRenderer(renderer);
		  }
		  JScrollPane scroll = new JScrollPane( table );
		  getContentPane().add( scroll );
		  setSize( 400, 120 );
	  }
	  
	  public static void main(String[] args) {
		  GroupableHeaderExample frame = new GroupableHeaderExample();
		  frame.addWindowListener( new WindowAdapter() {
			  public void windowClosing( WindowEvent e ) {
				  System.exit(0);
			  }
		  });
		  frame.setVisible(true);
	  }
}