Customizing the Editor in a JSpinner Component: Create a color spinner : JSpinner « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JSpinner

import java.awt.Color;
import java.awt.Dimension;
import java.lang.reflect.Field;

import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.SpinnerListModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class Main {
  public static void main(String[] argv) throws Exception {
    ColorSpinner spinner = new ColorSpinner(new String[] { "red", "green","blue" });
   spinner.setValue("blue");
  }
}
class ColorSpinner extends JSpinner {
  public ColorSpinner(String[] colorNames) {
    super();
    setModel(new SpinnerListModel(colorNames));
    setEditor(new Editor(this));
  }

  public class Editor extends JPanel implements ChangeListener {
    int preferredWidth = 30;
    int preferredHeight = 16;

    Editor(JSpinner spinner) {
      spinner.addChangeListener(this);
      setPreferredSize(new Dimension(preferredWidth, preferredHeight));
      setColor((String) spinner.getValue());
    }
    public void stateChanged(ChangeEvent evt) {
      JSpinner spinner = (JSpinner) evt.getSource();

      String value = (String) spinner.getValue();

      setColor(value);
    }

    public void setColor(String colorName) {
      try {
        Field field = Class.forName("java.awt.Color").getField(colorName);
        Color color = (Color) field.get(null);
        setBackground(color);
      } catch (Exception e) {
      }
    }
  }
}

14.33.JSpinner
	14.33.1.	Creating JSpinner Components
	14.33.2.	Creating an Hour JSpinner Component
	14.33.3.	Creating a JSpinner Component: A number spinner:
	14.33.4.	Using SpinnerDateModel to create JSpinner
	14.33.5.	SpinnerListModel Class: provides for selection from a list of entries, or at least their string representation.
	14.33.6.	SpinnerNumberModel Class: provides for the selection of a number from an open or closed range of values.
	14.33.7.	Strings based Spinner
	14.33.8.	Listening for Changes to the Value in a JSpinner Component
	14.33.9.	Listening for JSpinner Events with a ChangeListener
	14.33.10.	Spinner Date Data
	14.33.11.	Spinner Number Model
	14.33.12.	public SpinnerDateModel(Date value, Comparable start, Comparable end, int calendarField)
	14.33.13.	Custom Models
	14.33.14.	Use an Icon Editor for use with the JSpinner component
	14.33.15.	public JSpinner.DateEditor(JSpinner spinner)
	14.33.16.	public JSpinner.DateEditor(JSpinner spinner, String dateFormatPattern)
	14.33.17.	public JSpinner.NumberEditor(JSpinner spinner)
	14.33.18.	public JSpinner.NumberEditor(JSpinner spinner, String decimalFormatPattern)
	14.33.19.	Creating Custom Spinner Models and Editors
	14.33.20.	A list spinner
	14.33.21.	A date spinner
	14.33.22.	A spinner of dates
	14.33.23.	Number spinner
	14.33.24.	Implements a custom model and a custom editor for a spinner that displays shades of gray
	14.33.25.	Setting the Margin Space on a JSpinner Component
	14.33.26.	Creating a SpinnerListModel That Loops Through Its Values
	14.33.27.	Limiting the Values in a Number JSpinner Component
	14.33.28.	Disabling Keyboard Editing in a JSpinner Component
	14.33.29.	Customizing the Editor in a JSpinner Component: Create a color spinner
	14.33.30.	Customizing a JSpinner Look and Feel