Set Background/Foreground color for Cell Renderer in JComboBox
Hello,
I was wondering if there is a way to change default settings for when I browse items under a JComboBox's cell renderer? I want the item's color to change (to what I set it to), when mouse enters the item. As of now, the cell's background color changes to Blue when I enter it. Is this default for JComboBox or might it have been set somewhere, that I need to look into?
Please let me know if there are ways to do this.
Thanks!
Message was edited by:
programmer_girl
# 1
Here's my SSCCE:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JComboBox;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.text.DefaultHighlighter;
public class MyComboBoxTest extends JPanel {
/**
* @param args
*/
String[] patterns = {"pattern1","pattern2","pattern3"};
public MyComboBoxTest()
{
JPanel patternsPanel = new JPanel();
setMinimumSize(new Dimension(100, 100));
JComboBox patternList = new JComboBox(patterns);
final JTextField editor = (JTextField) patternList.getEditor().getEditorComponent();
patternList.setEditable(true);
this.add(patternsPanel);
patternsPanel.add(patternList);
patternList.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
editor.setSelectedTextColor(Color.WHITE);
editor.setForeground(Color.WHITE);
try{
editor.getHighlighter().addHighlight(0, editor.getText().length(),new DefaultHighlighter.DefaultHighlightPainter(Color.BLUE));
} catch (Exception ex){
ex.getMessage();
}
}
});
editor.addMouseListener(new MouseAdapter()
{
public void mouseClicked(MouseEvent e)
{
editor.getHighlighter().removeAllHighlights();
editor.setForeground(Color.BLACK);
editor.setSelectedTextColor(Color.BLACK);
}
});
}
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame frame = new JFrame("My ComboBox Demo");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setSize(100, 100);
frame.getContentPane().add(new MyComboBoxTest());
frame.setLocation(50, 50);
frame.pack();
frame.setVisible(true);
}
}
# 4
For example if you want to set the selection background to red:patternList.setRenderer(new DefaultListCellRenderer() {
public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
Component comp = super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
if (isSelected)
comp.setBackground(Color.RED);
return comp;
}
});
