componentidmanager.java

基于eclipse的工具开发代码

package com.cownew.uidesigner.common;

import java.util.List;

import com.cownew.ctk.common.NumberUtils;
import com.cownew.uidesigner.model.Component;
import com.cownew.uidesigner.model.Form;

/**
 * 控件Id管理器
 * 
 * @author 杨中科
 * 
 */
public class ComponentIdManager
{
	private Form form;

	public ComponentIdManager(Form form)
	{
		super();
		this.form = form;
	}

	/**
	 * 用来生成此UI中唯一的控件id
	 * 
	 * @param component
	 * @return
	 */
	public String generateId(Component component)
	{
		String modelName = component.getClass().getSimpleName().toLowerCase();
		List<Component> components = form.getComponents();

		// 同类控件的最大序列号
		int maxSeqNum = 0;
		for (Component comp : components)
		{
			String compId = comp.getId();
			if (compId.startsWith(modelName))
			{
				String tail = compId.substring(modelName.length(), compId
						.length());

				if (NumberUtils.isInteger(tail))
				{
					int intTail = Integer.parseInt(tail);
					if (intTail > maxSeqNum)
					{
						maxSeqNum = intTail;
					}
				}
			}
		}
		return modelName + (maxSeqNum + 1);
	}

	/**
	 * id是否重复
	 * 
	 * @param id
	 * @param component
	 * @return
	 */
	public boolean isIdConflicted(String id, Component component)
	{
		List<Component> components = form.getComponents();
		for (Component comp : components)
		{
			String compId = comp.getId();
			if (compId.equals(id) && component != comp)
			{
				return true;
			}
		}
		return false;
	}

}