/*
* $Id: ChartItemComponent.java,v 1.4 2004/11/14 07:33:12 tcfujii Exp $
*/
/*
* Copyright 2004-2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
package components.components;
import java.io.IOException;
import javax.faces.application.Application;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;
import javax.faces.component.UIComponentBase;
/**
* <p><strong>ChartItemComponent</strong> is a component that may be nested
* inside a <code>ChartItem</code>, and causes the addition of a
* <code>ChartItem</code> instance to the list of available options for the
* parent component. The contents of the
* <code>ChartItem</code> can be specified in one of the following ways:</p>
* <ul>
* <li>The <code>itemValue</code> attribute's value is an instance of
* <code>ChartItem</code>.</li>
* <li>The associated {@link ValueBinding} points at a model data
* item of type <code>ChartItem</code>.</li>
* <li>A new <code>ChartItem</code> instance is synthesized from the values
* of the <code>itemLabel</code>, <code>itemColor</code>,
* <code>itemValue</code></li>
* </ul>
*/
public class ChartItemComponent extends UIComponentBase {
// ------------------------------------------------------ Manifest Constants
/**
* <p>The standard component type for this component.</p>
*/
public static final String COMPONENT_TYPE = "ChartItem";
/**
* <p>The standard component family for this component.</p>
*/
public static final String COMPONENT_FAMILY = "ChartItem";
// ------------------------------------------------------------ Constructors
/**
* <p>Create a new <code>ChartItem</code> instance with default property
* values.</p>
*/
public ChartItemComponent() {
super();
setRendererType(null);
}
// ------------------------------------------------------ Instance Variables
private String itemLabel = null;
private String itemColor = null;
private Object itemValue = null;
private Object value = null;
// -------------------------------------------------------------- Properties
public String getFamily() {
return (COMPONENT_FAMILY);
}
/**
* <p>Return the label for this chart item.
*/
public String getItemLabel() {
if (this.itemLabel != null) {
return (this.itemLabel);
}
ValueBinding vb = getValueBinding("itemLabel");
if (vb != null) {
return ((String) vb.getValue(getFacesContext()));
} else {
return (null);
}
}
/**
* <p>Set the label for this chart item.
*
* @param label The new label
*/
public void setItemLabel(String label) {
this.itemLabel = label;
}
/**
* <p>Return the color for this chart item.
*/
public String getItemColor() {
if (this.itemColor != null) {
return (this.itemColor);
}
ValueBinding vb = getValueBinding("itemColor");
if (vb != null) {
return ((String) vb.getValue(getFacesContext()));
} else {
return (null);
}
}
/**
* <p>Set the color for this chart item.
*
* @param color The new color
*/
public void setItemColor(String color) {
this.itemColor = color;
}
/**
* <p>Return the server value for this selection item.
*/
public Object getItemValue() {
if (this.itemValue != null) {
return (this.itemValue);
}
ValueBinding vb = getValueBinding("itemValue");
if (vb != null) {
return ((Integer) (vb.getValue(getFacesContext())));
} else {
return null;
}
}
/**
* <p>Set the server value for this selection item.
*
* @param itemValue The new server value
*/
public void setItemValue(Object itemValue) {
this.itemValue = itemValue;
}
/**
* <p>Returns the <code>value</code> of this chart item
*/
public Object getValue() {
if (this.value != null) {
return (this.value);
}
ValueBinding vb = getValueBinding("value");
if (vb != null) {
return (vb.getValue(getFacesContext()));
} else {
return (null);
}
}
/**
* <p>Sets the <code>value</code> property of this chart item
*
* @param value the new value
*/
public void setValue(Object value) {
this.value = value;
}
// ----------------------------------------------------- StateHolder Methods
public Object saveState(FacesContext context) {
Object values[] = new Object[5];
values[0] = super.saveState(context);
values[1] = itemLabel;
values[2] = itemColor;
values[3] = itemValue;
values[4] = value;
return (values);
}
public void restoreState(FacesContext context, Object state) {
Object values[] = (Object[]) state;
super.restoreState(context, values[0]);
itemLabel = (String) values[1];
itemColor = (String) values[2];
itemValue = values[3];
value = values[4];
}
}