/* ChartEngine.java
Purpose:
Description:
History:
Wed Aug 03 11:22:44 2006, Created by henrichen
Copyright (C) 2006 Potix Corporation. All Rights Reserved.
{{IS_RIGHT
This program is distributed under LGPL Version 3.0 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.zul.impl;
/**
* Chart engine is an engine that do the real chart rendering.
*
* This interface defines the chart engine for components like {@link org.zkoss.zul.Chart}
* use to get the value of each data and the size of the chart data.
*
* @author henrichen
* @see org.zkoss.zul.Chart
* @see org.zkoss.zul.ChartModel
* @see org.zkoss.zul.event.ChartAreaListener
*/
public interface ChartEngine {
/**
* Draw the chart and render into image format as an byte array.
* @param data the data used in drawing a chart; depends on implementation.
*/
public byte[] drawChart(Object data);
}
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