Problem mit JButton in JTable

[kekskennzeichen]

Hallo zusammen,

ich möchte mir eine Tabelle bauen in der in der 2.Zeile ein Jbutton liegt, der wenn man ihn anklickt den JColorChooser öffnet und nach auswahl der Farbe seine BackgroundColor zu dieser ändert.
Ich hab zwar geschafft das ich ihn anklicken kann aber er übernimmt die Farbe net wirklich.

Hier mein Code

package de.iset.test.colortable;


import java.awt.BorderLayout;
import java.awt.Color;
import java.util.Vector;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;


public class ColorTableTest
{

   public static void main (String args[])
   {
      // Look and Feel des jeweiligen OS setzen
      try
      {
         UIManager.setLookAndFeel (UIManager.getSystemLookAndFeelClassName ( ));
      }
      catch (Exception e)
      {
         e.printStackTrace ( );
      }
      
      
      JFrame frame = new JFrame ("Editable Color Table");
      frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
      EditChartTableModel model = new EditChartTableModel( );
      JTable table = new JTable (model);
      table.setDefaultRenderer( Color.class, new ColorCellRenderer() ); 
      table.setDefaultEditor (Color.class, new ColorEditor());
      table.setDefaultRenderer( Integer.class, new StyleCellRenderer() ); 
      
      
      Vector <Object> v1 = new Vector <Object> ( );
      v1.add("WF1/Power");
      v1.add (Color.red);
      v1.add(3);
      v1.add(5);

      Vector <Object> v2 = new Vector <Object> ( );
      v2.add ("WF1/Power Max");
      v2.add (Color.blue);
      v2.add (1);
      v2.add (2);

      model.addRow (v1);
      model.addRow (v2);
      
      table.createDefaultColumnsFromModel();
      JScrollPane scrollPane = new JScrollPane (table);
      
      frame.add (scrollPane, BorderLayout.CENTER);
      frame.setSize (600, 150);
      frame.setVisible (true);
   }
}

package de.iset.test.colortable;


import java.awt.Color;
import java.util.Vector;

import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;


public class EditChartTableModel extends AbstractTableModel
{
   /**
    * 
    */
   private static final long serialVersionUID = -4021085690657315775L;
   private Vector <TableModelListener> listeners   = new Vector <TableModelListener> ( );
   private Vector <Vector <Object>>    dataEntries = new Vector <Vector <Object>> ( );


   public void addTableModelListener (TableModelListener l)
   {
      listeners.add (l);
   }


   public void removeTableModelListener (TableModelListener l)
   {
      listeners.remove (l);

   }


   public Class <?> getColumnClass (int columnIndex)
   {
  
      switch (columnIndex)
      {
      case 0:
         return String.class;
      case 1:
         return Color.class;
      case 2:
         return Integer.class;
      case 3:
         return Integer.class;
      default:
         return null;
      }
   }


   public int getColumnCount ( )
   {
      // TODO Auto-generated method stub
      return 4;
   }


   public String getColumnName (int columnIndex)
   {
      
      switch (columnIndex)
      {
      case 0:
         return "WindFarm & ValueType";
      case 1:
         return "Line-Color";
      case 2:
         return "Line-Thickness";
      case 3:
         return "Line-Style";
      default:
         return null;
      }
   }


   public int getRowCount ( )
   {
      // TODO Auto-generated method stub
      return dataEntries.size ( );
   }


   public Object getValueAt (int rowIndex, int columnIndex)
   {
      Vector<Object> temp = dataEntries.get (rowIndex);
      return temp.get (columnIndex);
   }


   public boolean isCellEditable (int rowIndex, int columnIndex)
   {
      return true;  
   }


   public void setValueAt (Object value, int rowIndex, int columnIndex)
   {
      Vector<Object> temp = dataEntries.get(rowIndex);
      temp.set(columnIndex, value);

   }
   
   public void addRow(Vector<Object> row){
      dataEntries.add (row);
   }
}

package de.iset.test.colortable;


import java.awt.Color;
import java.awt.Component;

import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;


public class ColorCellRenderer extends JButton implements TableCellRenderer
{

   /**
    * 
    */
   private static final long serialVersionUID = -7902363692608869680L;

   public ColorCellRenderer(){
      
   }

   public Component getTableCellRendererComponent (JTable table, Object value, boolean isSelected, boolean hasFocus,                                                  int row, int column)
   {
      this.setBackground ((Color) value);
      return this;
   }
}

package de.iset.test.colortable;


import java.awt.Color;
import java.awt.Component;

import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;


public class ColorCellRenderer extends JButton implements TableCellRenderer
{

   /**
    * 
    */
   private static final long serialVersionUID = -7902363692608869680L;

   public ColorCellRenderer(){
      
   }

   public Component getTableCellRendererComponent (JTable table, Object value, boolean isSelected, boolean hasFocus,                                                  int row, int column)
   {
      this.setBackground ((Color) value);
      return this;
   }
}

Ich hoffe mir kann wer helfen, ich werd nämlich langsam wahnsinnig damit!

gruß keks

 

[kleiner_held]

Das Problem liegt wahrscheinlich bei deiner Klasse ColorEditor die du als einzige nicht gepostet hast

 

[kekskennzeichen]

Ja das kommt davon wenn man net ganz bei der Sache ist.

Hier ist sie dann nun:

package de.iset.test.colortable;


import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.EventObject;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.table.TableCellEditor;


public class ColorEditor extends JButton implements TableCellEditor
{

   /**
    * 
    */
   private static final long         serialVersionUID = 2684043847348097728L;
   private List <CellEditorListener> listener         = new ArrayList <CellEditorListener> ( );
   private Color                     selectedColor    = null;


   public ColorEditor ( )
   {
      
      this.addActionListener (new ActionListener ( )
      {

         public void actionPerformed (ActionEvent e)
         {
            
            selectedColor = JColorChooser.showDialog (null, "Select Color", getBackground ( ));
            System.out.println (selectedColor.toString ( ));
         }
      });

   }


   public Component getTableCellEditorComponent (JTable table, Object value, boolean isSelected, int row, int column)
   {
      selectedColor = (Color) value;
      return this;

   }


   public void addCellEditorListener (CellEditorListener l)
   {
      listener.add (l);

   }


   public void cancelCellEditing ( )
   {
      // TODO Auto-generated method stub

   }


   public Object getCellEditorValue ( )
   {
      return selectedColor;
   }


   public boolean isCellEditable (EventObject anEvent)
   {
      // TODO Auto-generated method stub
      return true;
   }


   public void removeCellEditorListener (CellEditorListener l)
   {
      listener.remove (l);

   }


   public boolean shouldSelectCell (EventObject anEvent)
   {
      return false;
   }


   public boolean stopCellEditing ( )
   {
      return true;
   }

}

 

[kleiner_held]

Beim CellEditor ist es meist am einfachsten von AbstractCellEditor zu erben.
Probier das mal:

public class ColorEditor  extends AbstractCellEditor  implements TableCellEditor 
{
	protected int clickCountToStart = 1;
	private JButton button;
	
	public ColorEditor()
	{
	      button = new JButton();
	      button.addActionListener (new ActionListener ()
	      {

	         public void actionPerformed (ActionEvent e)
	         {
	            Color selectedColor = JColorChooser.showDialog (null, "Select Color", ((JButton) e.getSource()).getBackground ());
	            if (selectedColor != null)
	            {
	            	System.out.println (selectedColor.toString ( ));
	            	((JButton) e.getSource()).setBackground(selectedColor);
	            	stopCellEditing();
	            }
	            else
	            {
	            	System.out.println("Color selection canceled by user");
	            	cancelCellEditing();
	            }
	         }
	      }); 
	}
	
	public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column)
	{
		Color color = (Color) value;
		button.setBackground(color);
		return button;
	}
	
	public Object getCellEditorValue()
	{
		return button.getBackground();
	}
	
    public boolean isCellEditable(EventObject anEvent) 
    {
	    if (anEvent instanceof MouseEvent) 
	    { 
	    	return ((MouseEvent)anEvent).getClickCount() >= clickCountToStart;
	    }
	    return true;
	}
}

 

[kekskennzeichen]

Danke, so funktioniert das schonmal wunderbar, das einzige Problem ist jetzt nur das der Button als Hintergrundfarbe nicht die gewählte Farbe annimmt, wenn ich nen Text hinein mache und die ForegroundColor so setzte geht es, nur net mit der Backgroundfarbe.