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/*

* To change this license header, choose License Headers in Project Properties.

* To change this template file, choose Tools | Templates

* and open the template in the editor.

*/

package javaapplication2;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

public class CombineData {

public ArrayList<Integer> combineColumns = new ArrayList<Integer>();//用于保存需要合并的列号

private String[][] datas;//table的数据，用来计算合并的单元格

private ArrayList<HashMap<Integer, Integer>> rowPoss;

private ArrayList<HashMap<Integer, Integer>> rowCounts;

public CombineData() { }

public CombineData(String[][] datas, int... combineColumns) {

this.datas = datas;

for (int i = 0; i < combineColumns.length; i++) {

if (combineColumns[i] < 0) {

continue; }

this.combineColumns.add(combineColumns[i]);

}

process();

}

public CombineData(String[][] datas, List<Integer> combineColumns) {

this.datas = datas;

for (Integer column : combineColumns) {

if (column < 0) {

continue; }

this.combineColumns.add(column);

}

process();

}

public void initData(String[][] datas, int... combineColumns) {

this.datas = datas;

this.combineColumns.clear();

for (int i = 0; i < combineColumns.length; i++) {

if (combineColumns[i] < 0) {

continue;

}

this.combineColumns.add(combineColumns[i]);

}

process();

}

public void initData(String[][] datas, List<Integer> combineColumns) {

this.datas = datas;

this.combineColumns.clear();

for (Integer column : combineColumns) {

if (column < 0) {

continue;

}

this.combineColumns.add(column);

}

process();

}

private void process() {

rowPoss = new ArrayList<HashMap<Integer, Integer>>();

rowCounts = new ArrayList<HashMap<Integer, Integer>>();

for (Integer integer : combineColumns) {

HashMap<Integer, Integer> rowPos = new HashMap<Integer, Integer>();

HashMap<Integer, Integer> rowCount = new HashMap<Integer, Integer>();

String pre = "";

int count = 0;

int start = 0;

for (int i = 0; i < datas.length; i++) {

String[] data = datas[i];

if (pre.equals(data[integer])) {

count++;

} else {

rowCount.put(start, count);

pre = data[integer];

count = 1;

start = i;

}

rowPos.put(i, start);

}

rowCount.put(start, count);

rowPoss.add(rowPos);

rowCounts.add(rowCount);

}

}

/**

* 返回table中row行column列单元格所跨行数

*/

public int span(int row, int column) {

int index = combineColumns.lastIndexOf(column);

if (index != -1) {

return rowCounts.get(index).get(rowPoss.get(index).get(row));

} else {

return 1;

}

}

/**

* 返回table中row行column列单元格所在的合并单元格的起始行位置

*/

public int visibleCell(int row, int column) {

int index = combineColumns.lastIndexOf(column);

if ((index != -1) && row > -1) {

return rowPoss.get(index).get(row);

} else {

return row;

}

}

}