package com.yueqian.project.bean;

/**
 * @ClassName: PageBean
 * @Description:分页实体类
 * 注意：传递的参数只有三个：
 *      totalCount:总条目数
 *      pageSize:每一页显示的条数
 *      currentPage:当前页
 *      其他：内部计算
 * @author: 冯老师   QQ:2506075234
 * @date: 2021年3月23日 上午8:31:17
 *
 * @Copyright: 2021 www.gec-edu.org Inc. All rights reserved.
 *
 */
public class PageBean {
    private int totalCount;  //总条目数
    private int pageSize = 4;  //每一页显示的条数
    private int totalPage;  //总页数
    private int currentPage;  //当前页面页码
    private boolean isFirstPage;  //是否首页
    private boolean isLastPage;  //是否尾页
    private int prePage;  //回到上一页
    private int nextPage;  //回到下一页
    private int startIndex;//开始索引
    private int[] pageCount = new int[5];//动态的页码数量
	public PageBean() {
		super();
	}

	public PageBean(int pageSize, int currentPage,int totalCount) {
		super();
		this.pageSize = pageSize;
		this.currentPage = currentPage;
		this.totalCount = totalCount;
		// 计算总页数
		this.totalPage =(totalCount%pageSize==0?0:1)+totalCount/pageSize;
		// 设置当前索引
		this.startIndex = (currentPage-1)*pageSize;
		// 验证是否是首页
		this.isFirstPage = currentPage==1?true:false;
		// 验证是否是尾页
		this.isLastPage = currentPage==totalPage?true:false;
		// 设置上一页
		int currPre = currentPage;
		this.prePage = isFirstPage?currentPage:--currPre;// 这里不能直接使用currentPage计算，否则会影响到下一页的计算
		// 设置下一页
		int currNext = currentPage;
		this.nextPage = isLastPage?currentPage:++currNext;
		
	}

	public int getTotalCount() {
		return totalCount;
	}
	public void setTotalCount(int totalCount) {
		this.totalCount = totalCount;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getTotalPage() {
		return totalPage;
	}
	/**
	 * @Title: setTotalPage
	 * @Description: 设置计算总页数
	 * @param: totalPage
	 * @return: void
	 */
	public void setTotalPage(int totalPage) {
		this.totalPage =(totalCount%pageSize==0?0:1)+totalCount/pageSize;
	}
	public int getCurrentPage() {
		return currentPage;
	}
	public void setCurrentPage(int currentPage) {
		this.currentPage = currentPage;
	}
	public boolean isFirstPage() {
		return isFirstPage;
	}
	/**
	 * @Title: setFirstPage
	 * @Description: 验证是否是首页
	 * @param: isFirstPage
	 * @return: void
	 */
	public void setFirstPage(boolean isFirstPage) {
		this.isFirstPage = currentPage==1?true:false;
	}
	public boolean isLastPage() {
		return isLastPage;
	}
	/**
	 * @Title: setLastPage
	 * @Description: 验证是否是尾页
	 * @param: isLastPage
	 * @return: void
	 */
	public void setLastPage(boolean isLastPage) {
		this.isLastPage = currentPage==totalPage?true:false;
	}
	public int getPrePage() {
		return prePage;
	}
	/**
	 * @Title: setPrePage
	 * @Description: 设置上一页
	 * @param: prePage
	 * @return: void
	 */
	public void setPrePage(int prePage) {
		this.prePage = isFirstPage?currentPage:--currentPage;
	}
	public int getNextPage() {
		return nextPage;
	}
	/**
	 * @Title: setNextPage
	 * @Description: 设置下一页
	 * @param: nextPage
	 * @return: void
	 */
	public void setNextPage(int nextPage) {
		this.nextPage = isLastPage?currentPage:++currentPage;
	}
	public int getStartIndex() {
		return startIndex;
	}
	/**
	 * @Title: setStartIndex
	 * @Description: 设置当前索引
	 * @param: startIndex
	 * @return: void
	 */
	public void setStartIndex(int startIndex) {
		this.startIndex = (currentPage-1)*pageSize;
	}



    

}