GoldBuyBackFacade.java

package com.topsun.posclient.sales.ui.gold;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

import com.topsun.posclient.common.AppConstants;
import com.topsun.posclient.common.POSException;
import com.topsun.posclient.common.ProjectUtil;
import com.topsun.posclient.common.service.IBaseService;
import com.topsun.posclient.common.service.impl.BaseServiceImpl;
import com.topsun.posclient.datamodel.Item;
import com.topsun.posclient.sales.MessageResources;

/**
 * 投资金条回购面板类
 * 
 * @author Dong
 *
 */
public class GoldBuyBackFacade {
	
	/**
	 * 重置投资金条回购
	 * @throws POSException
	 */
	public static void restGoldBuyBackView() throws POSException{
		IBaseService baseService = new BaseServiceImpl();
		
		TableViewer tableViewer = GoldBuyBackManager.getInstance().getGoldBuyBackTableView();
		tableViewer.setInput(null);
		tableViewer.refresh();
		
		Text text = GoldBuyBackManager.getInstance().getDocNum();
		text.setText(baseService.createNo(AppConstants.DOC_TYPE_GOLDBUYBACK));
		
		caculatorGoldSalesPrice();
	}
	
	/**
	 * 获取当前零售窗口选中的ITEM
	 * @return
	 */
	public static Item getCurrentSelectionItem() {
		TableViewer tableViewer = GoldBuyBackManager.getInstance().getGoldBuyBackTableView();
		ISelection iSelection = tableViewer.getSelection();
		if (iSelection instanceof StructuredSelection) {
			StructuredSelection selection = (StructuredSelection) iSelection;
			Object obj = selection.getFirstElement();
			if (obj instanceof Item) {
				Item item = (Item) obj;
				return item;
			}
		}
		return null;
	}
	
	public static List<Item> getCurrentItemList() {
		TableViewer tableViewer = GoldBuyBackManager.getInstance().getGoldBuyBackTableView();
		return (List<Item>)tableViewer.getInput();
	}

	/**
	 * 计算总价
	 */
	public static void caculatorGoldSalesPrice() {
		Label salesPriceLable = GoldBuyBackManager.getInstance().getGoldBuyBackTotlePrice();
		TableViewer tableViewer = GoldBuyBackManager.getInstance().getGoldBuyBackTableView();
		TableItem[] items = tableViewer.getTable().getItems();
		BigDecimal totle = new BigDecimal(0);
		for (TableItem tableItem : items) {
			String zl = tableItem.getText(4);
			String price = tableItem.getText(5);
			if((null == price || "".equals(price)) || (null == zl || "".equals(zl))){
				totle = totle.add(new BigDecimal(0));
			}else{
				totle = totle.add(ProjectUtil.formatString(price).multiply(ProjectUtil.formatString(zl)));
			}
		}
		salesPriceLable.setText(ProjectUtil.formatAmount(null, totle).toString());
	}

	/**
	 * 删除金品ITEM
	 * 
	 * @param control
	 */
	public static void delGoldSaleItemListener(Control control) {
		if (control instanceof Button) {
			Button button = (Button) control;
			button.addSelectionListener(new SelectionListener() {
				public void widgetSelected(SelectionEvent e) {
					TableViewer tableViewer = GoldBuyBackManager.getInstance()
							.getGoldBuyBackTableView();
					ISelection iSelection = tableViewer.getSelection();
					if (iSelection instanceof IStructuredSelection) {
						IStructuredSelection iStructuredSelection = (IStructuredSelection) iSelection;
						Object obj = iStructuredSelection.getFirstElement();
						if (obj instanceof Item) {
							Item item = (Item) obj;
							Object itemList = tableViewer.getInput();
							if (itemList == null) {
								return;
							} else {
								if (itemList instanceof List) {
									List list = (List) itemList;
									list.remove(item);
								}
							}
							tableViewer.refresh();
							caculatorGoldSalesPrice();
						}
					}
				}

				public void widgetDefaultSelected(SelectionEvent e) {

				}
			});
		}

	}
	
	/**
	 * 添加回购信息
	 * @param inputDocNum
	 * @param inputBarCode
	 * @param tableViewer
	 * @throws POSException
	 */
	public static void addTableItem(String inputDocNum, TableViewer tableViewer) {
		Item item = new Item();
		item.setItemType(AppConstants.ITEM_TYPE_NORMAL);
		item.setItemStatus(AppConstants.ITEM_STATU_GOLD_BACK);
		item.setDocNum(inputDocNum);
		item.setZDPYZL(new BigDecimal(0));
		item.setZMDLSBQJ(new BigDecimal(0));
		item.setPrice(new BigDecimal(0));
		item.setSalesAmount(new BigDecimal(0));
		item.setFactAmount(new BigDecimal(0));
		item.setZJGF(new BigDecimal(0));
		item.setFactZJGF(new BigDecimal(0));
		item.setItemName("");
		Object obj = tableViewer.getInput();
		if (obj == null) {
			List<Item> list = new ArrayList<Item>();
			list.add(item);
			tableViewer.setInput(list);
		} else {
			if (obj instanceof List) {
				List list = (List) obj;
				list.add(item);
				tableViewer.setInput(list);
			}
		}
		caculatorGoldSalesPrice();
		tableViewer.refresh();
	}

	/**
	 * 添加退换信息
	 * 
	 * @param control
	 * @param tableViewer
	 */
	public static void addSalesItemListener(Control control) {
		control.addKeyListener(new KeyListener() {
			public void keyReleased(KeyEvent e) {
				if (e.keyCode == SWT.CR) {
					Item item = null;
					TableViewer tableViewer = GoldBuyBackManager.getInstance()
					.getGoldBuyBackTableView();
					String inputString = "";
					if (e.getSource() instanceof Text) {
						Text text = (Text) e.getSource();
						inputString = text.getText();
					}

					IBaseService baseService = new BaseServiceImpl();
					try {
						item = baseService.getItemByBarCode(inputString);
						if (item == null) {
							return;
						}
						item.setItemType(AppConstants.ITEM_TYPE_NORMAL);
						item.setItemStatus(AppConstants.ITEM_STATU_GOLD_BACK);
					} catch (POSException e1) {
						e1.printStackTrace();
						MessageDialog.openError(((Control)e.getSource()).getShell(), MessageResources.message_ui_tips, e1.getErrorMessage());
						return;
					}

					Object obj = tableViewer.getInput();
					if (obj == null) {
						List<Item> list = new ArrayList<Item>();
						list.add(item);
						tableViewer.setInput(list);
					} else {
						if (obj instanceof List) {
							List list = (List) obj;
							list.add(item);
							tableViewer.setInput(list);
						}
					}
					caculatorGoldSalesPrice();
					tableViewer.refresh();
				}

			}
			public void keyPressed(KeyEvent e) {

			}
		});
	}
}