package com.gwi.xls.resource.support;

import java.util.Map;
import java.util.HashMap;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;

import com.gwi.xls.resource.CssApplier;


public class AlignApplier implements CssApplier {

    public Map<String, String> parse(Map<String, String> style) {
    	Map<String, String> mapRtn = new HashMap<String, String>();
    	String align = style.get(TEXT_ALIGN);
    	if (!ArrayUtils.contains(new String[] {LEFT, CENTER, RIGHT, JUSTIFY}, align)) {
    		align = LEFT;
    	}
    	mapRtn.put(TEXT_ALIGN, align);
    	align = style.get(VETICAL_ALIGN);
    	if (!ArrayUtils.contains(new String[] {TOP, MIDDLE, BOTTOM}, align)) {
    		align = MIDDLE;
    	}
    	mapRtn.put(VETICAL_ALIGN, align);
	    return mapRtn;
    }

    public void apply(HSSFCell cell, HSSFCellStyle cellStyle,
            Map<String, String> style) {
    	// text align
    	String align = style.get(TEXT_ALIGN);
    	short sAlign = CellStyle.ALIGN_LEFT;
    	if (RIGHT.equals(align)) {
    		sAlign = CellStyle.ALIGN_RIGHT;
    	}
    	else if (CENTER.equals(align)) {
    		sAlign = CellStyle.ALIGN_CENTER;
    	}
    	else if (JUSTIFY.equals(align)) {
    		sAlign = CellStyle.ALIGN_JUSTIFY;
    	}
    	cellStyle.setAlignment(sAlign);
    	// vertical align
    	align = style.get(VETICAL_ALIGN);
    	sAlign = CellStyle.VERTICAL_CENTER;
    	if (TOP.equals(align)) {
    		sAlign = CellStyle.VERTICAL_TOP;
    	}
    	else if (BOTTOM.equals(align)) {
    		sAlign = CellStyle.VERTICAL_BOTTOM;
    	}
    	else if (JUSTIFY.equals(align)) {
    		sAlign = CellStyle.VERTICAL_JUSTIFY;
    	}
    	cellStyle.setVerticalAlignment(sAlign);
    }
}