intvaluebeanbeaninfo.java~2~

java bean 编程程序

package chapter8;

import java.beans.*;

import java.awt.*;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2004</p>
 *
 * <p>Company: 太阳微电脑有限公司</p>
 *
 * @author 陈雄华
 * @version 1.0
 */
public class IntValueBeanBeanInfo
    extends SimpleBeanInfo
{
    Class beanClass = IntValueBean.class;
    String iconColor16x16Filename;
    String iconColor32x32Filename;
    String iconMono16x16Filename;
    String iconMono32x32Filename;

    public IntValueBeanBeanInfo()
    {
    }

    public PropertyDescriptor[] getPropertyDescriptors()
    {
        try
        {
            PropertyDescriptor _intValue = new PropertyDescriptor(
                "intValue", beanClass, "getIntValue", "setIntValue");
            _intValue.setDisplayName("intValue");
            _intValue.setShortDescription("intValue");
//            _intValue.setBound(true);
//            _intValue.setConstrained(true);

            PropertyDescriptor[] pds = new PropertyDescriptor[]
                {
                _intValue
            };
            return pds;
        }
        catch (Exception exception)
        {
            exception.printStackTrace();
            return null;
        }
    }

    public Image getIcon(int iconKind)
    {
        switch (iconKind)
        {
            case BeanInfo.ICON_COLOR_16x16:
                return ( (iconColor16x16Filename != null)
                        ? loadImage(iconColor16x16Filename) : null);

            case BeanInfo.ICON_COLOR_32x32:
                return ( (iconColor32x32Filename != null)
                        ? loadImage(iconColor32x32Filename) : null);

            case BeanInfo.ICON_MONO_16x16:
                return ( (iconMono16x16Filename != null)
                        ? loadImage(iconMono16x16Filename) : null);

            case BeanInfo.ICON_MONO_32x32:
                return ( (iconMono32x32Filename != null)
                        ? loadImage(iconMono32x32Filename) : null);
        }

        return null;
    }
}