package com.vci.client.uif.engine.client.controls;

import java.awt.Color;
import java.awt.Cursor;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.event.MouseEvent;
import java.util.List;
import java.util.Map;

import com.vci.client.portal.custom.ICustomDefine;
import com.vci.client.portal.utility.PRMItem;
import com.vci.client.ui.swing.VCISwingUtil;
import com.vci.client.ui.swing.components.VCIJTextField;
import com.vci.client.uif.engine.client.custom.ICustomAttributeInteceptor;
import com.vci.client.uif.engine.client.renderer.UserNameInTableCellRenderer;
import com.vci.corba.common.VCIError;

/**
 * txt带search的公用选择控制模块。
 * <p>Description: </p>
 * @author caicong
 * @time 2014-5-8
 */
public class BaseCustomControl extends AbstractCustomControl implements ICustomDefine{

	private static final long serialVersionUID = -2815707317189936866L;
	private final Image img = VCISwingUtil.createImageIcon("search.png").getImage();
	private String value = "";
	private boolean editable = true;
	private ICustomAttributeInteceptor inteceptor = null ;
	private PRMItem item;
	
	public BaseCustomControl(){
		super();
	}
	
	public BaseCustomControl(PRMItem item) {
		super(item);
		this.item = item;
		// 1:只读 0：非只读
		editable = item.getItemIsEditable().equals("1") ? false:true;
		init();
		setEditable(editable);
		if(editable){
			txt.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
		}
	}
	
	@SuppressWarnings("serial")
	private final VCIJTextField txt = new VCIJTextField(""){
		@Override
		public void paintComponent(Graphics g){
			super.paintComponent(g);
			Graphics2D g2 = (Graphics2D) g;
			if(img != null){
				g2.drawImage(img, getWidth() - img.getWidth(null), getHeight() - img.getHeight(null), img.getWidth(null),  img.getHeight(null), null);
			}
			BaseCustomControl.this.drawRequiredFlag(g);
		}
		@Override
		public void mouseClicked(MouseEvent e) {
			super.mouseClicked(e);
			if(!editable || !isEnabled()) {
				return;
			}
			if (isClickImage(e)) {
				try {
					if(inteceptor == null){
						inteceptor = getCustomInteceptorInstance();
					}
					if(inteceptor != null){
						//通过接口获取id-name的字符串。
						String sotoreAndDisplayValue = inteceptor.getCustomAttributeSaveValue(item, getParentComponent());//父组件对象需考虑。
						//将id 赋值给value，name赋值给txt。
						setValue(sotoreAndDisplayValue);//待确定赋值方式。
					}
				} catch (Exception e1) {
					e1.printStackTrace();
				} 
			} 
		}
		
		private boolean isClickImage(MouseEvent e){
			boolean res = false;
			int imgWidth = img.getWidth(null);
			int imgHeight = img.getHeight(null);
			int width = getWidth();
			int height = getHeight();
			int pointX = e.getX();
			int pointY = e.getY();
			if(width - imgWidth < pointX  && pointX <  width 
					&& height - imgHeight < pointY && pointY < height){
				res = true;
			}
			// 只读的情况下，点击文本框任何区域，就将响应自事件处理
			// 非只读时，只有点击图片区域，才响应自定义事件处理
			if(!txt.isEditable()){
				res = true;
			}
			return res;
		}
	};
	
	@Override
	public String getValue() {
		return value;
	}
	@Override
	public void setValue(String sotoreAndDisplayValue) {
		String displayValue = "";
		if(!sotoreAndDisplayValue.contains(ICustomAttributeInteceptor.SPLIT_CHAR)) {
			ICustomAttributeInteceptor inteceptor = getCustomInteceptorInstance();
			if(inteceptor != null){
				try {
					displayValue = inteceptor.getCustomAttributeDisplayValue(sotoreAndDisplayValue, getPRMItem());
				} catch (VCIError e) {
					e.printStackTrace();
				}
			}
			if(displayValue != null){
				sotoreAndDisplayValue = sotoreAndDisplayValue + ICustomAttributeInteceptor.SPLIT_CHAR + displayValue;  
			}
		}
		String oldValue = txt.getText();
		String[] values = sotoreAndDisplayValue.split(ICustomAttributeInteceptor.SPLIT_CHAR);
		String newValue = "";
		if(values.length > 0){
			this.value = values[0];
			this.txt.setText(values[0]);
		}
		if(values.length >= 2){
			this.txt.setText(values[1]);
			newValue = this.txt.getText();
		}
		if(sotoreAndDisplayValue.equals(ICustomAttributeInteceptor.SPLIT_CHAR)){
			newValue = "";
			this.value = newValue;
			this.txt.setText(this.value);
		}
		firePropertyChange("valueChange", oldValue, newValue);
	}
	
	protected ICustomAttributeInteceptor getCustomInteceptorInstance(){
		ICustomAttributeInteceptor res = null;
		String className = getPRMItem().getItemStyle();
		if(className == null || "".equals(className)){
			className = getPRMItem().getItemValue();
		}
		try{
			if(className == null || "".equals(className)) return res;
			Object obj = Class.forName(className).getConstructor().newInstance();
			if(obj == null) return res;
			if(obj instanceof ICustomAttributeInteceptor){
				res = (ICustomAttributeInteceptor)obj;
				res.setCustomControl(this);
			}
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return res;
	}
	
	@Override
	public void setEditable(boolean editable) {
		this.editable = editable;
	}
	
	protected void init(){
		setLayout(new GridBagLayout());
		add(txt, getGBC(0, 0, 1, 1, 1.0, 0.0, GridBagConstraints.EAST, GridBagConstraints.BOTH, 0));
		txt.setEditable(false);
		if (editable) {
			txt.setBackground(Color.WHITE);
		}
	}
	
	@Override
	public void setEnabled(boolean enabled) {
		super.setEnabled(enabled);
		setEditable(enabled);
		txt.setEnabled(enabled);
	}
	
	private UserNameInTableCellRenderer uncr = null;
	@Override
	public void getCustomValue(String columnName,
			Map<String, PRMItem> customItemMap, List<Map<String, String>> datas)
			throws VCIError {
		if(uncr == null) uncr = new UserNameInTableCellRenderer();
		uncr.getCustomValue(columnName, customItemMap, datas);
	}

	public VCIJTextField getTxt() {
		return txt;
	}
}