togglebutton.java

基于eclipse的工具开发代码

package com.cownew.uidesigner.model;

import org.eclipse.ui.views.properties.IPropertyDescriptor;

import com.cownew.eclipse.properties.BooleanPropertyDescriptor;
import com.cownew.uidesigner.common.ComponentUtils;

public abstract class ToggleButton extends AbstractButton
{

	private static final long serialVersionUID = 1L;

	public static final String SELECTED = "Selected";

	private static IPropertyDescriptor[] descriptors = new IPropertyDescriptor[] { new BooleanPropertyDescriptor(
			SELECTED, "Selected") };

	private boolean selected;

	public ToggleButton()
	{
		super();
		selected = true;
	}

	public boolean isSelected()
	{
		return selected;
	}

	public void setSelected(boolean selected)
	{
		Boolean oldValue = Boolean.valueOf(isSelected());
		this.selected = selected;
		this.firePropertyChange(SELECTED, oldValue, Boolean.valueOf(selected));
	}

	public IPropertyDescriptor[] getPropertyDescriptors()
	{
		IPropertyDescriptor[] sd = super.getPropertyDescriptors();
		return ComponentUtils.mergePropDesc(sd, descriptors);
	}

	public Object getPropertyValue(Object id)
	{
		Object v = super.getPropertyValue(id);
		if (v != null)
		{
			return v;
		}
		if (id.equals(SELECTED))
		{
			return Boolean.valueOf(isSelected());
		}
		return null;

	}

	public void setPropertyValue(Object id, Object value)
	{
		super.setPropertyValue(id, value);
		if (id.equals(SELECTED))
		{
			Boolean b = (Boolean) value;
			setSelected(b.booleanValue());
		}
	}
}