searchdialog.java

CD Manager光盘资料管家婆源代码

package com.galaxyworkstation.view;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;

import org.apache.lucene.document.Document;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

import com.galaxyworkstation.control.CDManager;
import com.galaxyworkstation.model.ImageFactory;
import com.galaxyworkstation.model.MyException;
import com.galaxyworkstation.model.SWTResourceManager;
import com.galaxyworkstation.model.Search;

public class SearchDialog extends Dialog {

	private Table table;
	private Text text;
	protected Object result;
	public static Shell shell;
	
	private Label countLabel;
	private Button searchButton;
	private Button createFolderButton;
	private Button createDiskButton;
	private Button deleteIndexButton;
	
	/**
	 * Create the dialog
	 */
	public SearchDialog(Shell parent, int style) {
		super(parent, style);
	}

	/**
	 * Create the dialog
	 */
	public SearchDialog(Shell parent) {
		this(parent, SWT.NONE);
	}

	/**
	 * Open the dialog
	 */
	public Object open() {
		createContents();
		addListener();
		shell.open();
		shell.layout();
		Display display = getParent().getDisplay();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
		return result;
	}

	/**
	 * Create contents of the dialog
	 */
	protected void createContents() {
		shell = new Shell(getParent(), SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
		shell.setDragDetect(false);
		shell.setImage(SWTResourceManager.getImage(SearchDialog.class, "../../../image/search16.gif"));
		shell.setSize(500, 375);
		shell.setLocation((shell.getDisplay().getClientArea().width - shell
				.getClientArea().width) / 2, (shell.getDisplay()
				.getClientArea().height - shell.getClientArea().height) / 2);
		shell.setText("硬盘搜索");

		final Group group = new Group(shell, SWT.NONE);
		group.setBounds(10, 5, 474, 333);

		countLabel = new Label(group, SWT.NONE);
		countLabel.setAlignment(SWT.CENTER);
		countLabel.setBounds(335, 16, 106, 25);

		text = new Text(group, SWT.BORDER);
		text.setBounds(10, 50, 398, 20);

		searchButton = new Button(group, SWT.NONE);
		searchButton.setImage(SWTResourceManager.getImage(SearchDialog.class, "../../../image/search16.gif"));
		searchButton.setBounds(414, 47, 50, 25);

		table = new Table(group, SWT.BORDER|SWT.FULL_SELECTION);
		table.setLinesVisible(true);
		table.setHeaderVisible(true);
		table.setBounds(10, 79, 454, 244);

		final TableColumn filenameColumn = new TableColumn(table, SWT.NONE);
		filenameColumn.setWidth(147);
		filenameColumn.setText("文件名");

		final TableColumn sizeColumn = new TableColumn(table, SWT.NONE);
		sizeColumn.setAlignment(SWT.RIGHT);
		sizeColumn.setWidth(67);
		sizeColumn.setText("大小");

		final TableColumn pathColumn = new TableColumn(table, SWT.NONE);
		pathColumn.setWidth(229);
		pathColumn.setText("路径");

		createFolderButton = new Button(group, SWT.NONE);
		
		createFolderButton.setText("建立目录索引");
		createFolderButton.setBounds(10, 18, 84, 25);

		createDiskButton = new Button(group, SWT.NONE);
		createDiskButton.setText("建立全盘索引");
		createDiskButton.setBounds(114, 18, 84, 25);

		deleteIndexButton = new Button(group, SWT.NONE);
		deleteIndexButton.setText("删除磁盘索引");
		deleteIndexButton.setBounds(220, 18, 84, 25);

	}
	
	/*************************************************
	 ************Register Listener *******************
	 *************************************************/
	
	private void addListener(){
		
		text.addFocusListener(searchFocusListener);
		text.addModifyListener(searchListener);
		
		searchButton.addSelectionListener(serachButtonListener);
		
		table.addMouseListener(tableClickListener);
		
		createFolderButton.addSelectionListener(createFolderListener);
		
		createDiskButton.addSelectionListener(createDiskListener);
		
		deleteIndexButton.addSelectionListener(deleteButtonListener);
	}
	
	/*********************************************************
	 ******************* Listener ****************************
	 *********************************************************/
	
	/**
	 * 搜索框文字改变事件
	 */
	private ModifyListener searchListener = new ModifyListener() {
		
		public void modifyText(final ModifyEvent e) {
			
			try {
				table.removeAll();
				countLabel.setText("");
				String keyword = text.getText().trim();
				if (keyword.length() >= 2) {
					ArrayList<Document> result = CDManager.action.search(keyword,
							Search.DISC_SEARCH);
					TableItem tableItem;
					long size = 0;
					String s;
					Document doc;
					int count = result.size();
					for (int i = 1; i < count; i++) {
						doc = result.get(i);
						tableItem = new TableItem(table, SWT.NONE);
						if (doc.get("isLeaf").equals("f")) {
							tableItem.setText(new String[] {
									doc.get("name"), "", doc.get("path") });
							tableItem.setImage(SWTResourceManager.getImage(
									MainGUI.class, ImageFactory.FOLDER));
						} else if (doc.get("isLeaf").equals("t")) {
							size = Long.parseLong(doc.get("size"));
							size /= 1024;
							s = String.format("%,d KB", ++size);
							tableItem.setText(new String[] {
									doc.get("name"), s, doc.get("path") });
							tableItem.setImage(SWTResourceManager.getImage(
									MainGUI.class, ImageFactory.FILE));
						}
					}
					if(count != 0)
						countLabel.setText("共搜到 " + result.get(0).get("hits")
								+ " 项\n显示前 " + (count - 1) + " 项");
				}
			} catch (NumberFormatException e1) {
				e1.printStackTrace();
			} catch (MyException e1) {
				MessageBox msgBox = new MessageBox(shell, SWT.ICON_ERROR
						| SWT.OK);
				msgBox.setText("错误");
				msgBox.setMessage("您输入的关键词太过模糊,请重新输入!");
				msgBox.open();
				return;
			}
		}
		
	};
	


	/**
	 * 搜索框获得焦点事件 
	 */
	private FocusListener searchFocusListener = new FocusListener() {
		
		public void focusGained(FocusEvent e) {
			
			text.setText("");
		}

		public void focusLost(FocusEvent e) {
		}
	};
	

	/**
	 * 搜索按钮点击事件
	 */
	private SelectionListener serachButtonListener = new SelectionListener(){

		public void widgetDefaultSelected(SelectionEvent e) {
		}

		public void widgetSelected(SelectionEvent e) {
			
			String keyword = text.getText().trim();
			if (keyword.length() < 2) {
				MessageBox msgBox = new MessageBox(shell, SWT.ICON_ERROR
						| SWT.OK);
				msgBox.setText("关键词过短错误");
				msgBox.setMessage("您输入的关键词过短,请重新输入!");
				msgBox.open();
				return;
			}
		}
		
	};
	
	/**
	 * 表格鼠标点击事件
	 */
	private MouseListener tableClickListener = new MouseListener(){

		public void mouseDoubleClick(MouseEvent e) {
			
			try {
				TableItem tableItem;
				if(((Table)e.widget).getSelectionCount() > 0){
					tableItem = (TableItem)(((Table)e.widget).getSelection()[0]);
					File file = new File(tableItem.getText(2));
					if(file.exists()){
						if(File.separator.equals("\\")){
							Runtime.getRuntime().exec("cmd.exe /c start " + file.getAbsolutePath());
						}else{
							MessageBox msgBox = new MessageBox(e.display.getShells()[0], SWT.ICON_INFORMATION
									| SWT.OK);
							msgBox.setText("提示");
							msgBox.setMessage("当前版本只支持在Windows平台下执行该文件。");
							msgBox.open();
							return;
						}
					}
					else{
						MessageBox msgBox = new MessageBox(e.display.getShells()[0], SWT.ICON_ERROR
								| SWT.OK);
						msgBox.setText("错误");
						msgBox.setMessage("无法运行，该文件(夹)可能已被移动或删除。");
						msgBox.open();
						return;
					}
				}
			} catch (IOException e1) {
				e1.printStackTrace();
			}
		}

		public void mouseDown(MouseEvent e) {
		}

		public void mouseUp(MouseEvent e) {
		}
		
	};
	
	/**
	 * 建立目录索引
	 */
	private SelectionListener createFolderListener = new SelectionListener(){

		public void widgetDefaultSelected(SelectionEvent e) {
		}

		public void widgetSelected(SelectionEvent e) {
			
			final DirectoryDialog dirDialog = new DirectoryDialog(shell);
			dirDialog.setMessage("请选择将要建立索引的本地目录...");
			dirDialog.setText("请选择需要建立的目录..");
			String path = dirDialog.open();
			if (path != null) {
				MessageBox msgBox = new MessageBox(shell, SWT.ICON_QUESTION
						| SWT.YES | SWT.NO);
				msgBox.setText("确定建立目录索引");
				msgBox.setMessage("你确定建立 " + path + " 的索引吗?");
				int choice = msgBox.open();
				if (choice == SWT.YES) {
					CDManager.action.addDiscIndex(path);
					msgBox = new MessageBox(shell, SWT.ICON_INFORMATION
							| SWT.OK);
					msgBox.setText("成功");
					msgBox.setMessage("成功创建[" + path + "]目录的索引!");
					msgBox.open();
				}
			}
		}
		
	};

	/**
	 * 建立硬盘索引
	 */
	private SelectionListener createDiskListener = new SelectionListener(){

		public void widgetDefaultSelected(SelectionEvent e) {
		}

		public void widgetSelected(SelectionEvent e) {
			
			MessageBox msgBox = new MessageBox(shell, SWT.ICON_QUESTION
					| SWT.YES | SWT.NO);
			msgBox.setText("确定建立全盘索引");
			msgBox.setMessage("你确定建立全盘索引吗?");
			int choice = msgBox.open();
			if (choice == SWT.YES) {
				CDManager.action.createWholeDiscIndex();
			}
		}
		
	};
	
	/**
	 * 删除全部硬盘索引
	 */
	private SelectionListener deleteButtonListener = new SelectionListener(){

		public void widgetDefaultSelected(SelectionEvent e) {
		}

		public void widgetSelected(SelectionEvent e) {
			
			MessageBox msgBox = new MessageBox(shell, SWT.ICON_QUESTION
					| SWT.YES | SWT.NO);
			msgBox.setText("确定删除硬盘索引");
			msgBox.setMessage("你确定删除磁盘(包括目录和全盘)索引吗?");
			int choice = msgBox.open();
			if (choice == SWT.YES) {
				CDManager.action.deleteWholeDiscIndex();
				countLabel.setText("索引已全部删除!");
				table.clearAll();
			}
		}
		
	};
}