mainwnd.java

Java语言编写的一段测试源码

/*
 * Created on 2003-9-10
 *
 * Zilin Du
 */
package org.zilin.gui;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.program.Program;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
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.ToolBar;
import org.eclipse.swt.widgets.ToolItem;

/**
 * @author D6VAA1
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class MainWnd {
	private Shell shell;
	private Display display;
	private Menu menu;
	private ToolBar toolBar;
	private CLabel statusLine;
	private Table table;

	static final String appName = "SWT JavaZip 1.0";

	MenuItem newMnu, openMnu, closeMnu, exitMnu;
	MenuItem addMnu, deleteMnu, extractMnu, viewMnu;
	MenuItem configMnu, aboutMnu;

	ToolItem newBtn, openBtn, closeBtn, exitBtn;
	ToolItem addBtn, deleteBtn, extractBtn, viewBtn;
	ToolItem configBtn, aboutBtn;

	private Image unknownImg;
	private SimpleDateFormat dataFormat = new SimpleDateFormat("yyyy-M-d H:mm");
	/**
	 * 
	 */
	public MainWnd() {
		display = new Display();
		shell = new Shell(display);
		initWindow();
		unknownImg = new Image(display, "images/unknown.gif");
	}

	private Image loadImage(String name) {
		ImageData imageData = new ImageData(name);
		if (imageData.transparentPixel >= 0) {
			ImageData maskData = imageData.getTransparencyMask();
			return new Image(Display.getCurrent(), imageData, maskData);
		} else
			return new Image(Display.getCurrent(), imageData);
	}

	public void initWindow() {
		shell.setText(appName);
		shell.setImage(loadImage("images/javazip.gif"));
		GridLayout gd = new GridLayout();
		gd.marginWidth = gd.marginHeight = 1;
		shell.setLayout(gd);

		addMenuBar();
		addSeparator();
		addToolBar();
		addSeparator();
		addContents();
		addStatusLine();
	}

	private MenuItem createMenuItem(Menu m, String t, String img, int a) {
		MenuItem item = new MenuItem(m, 0);
		item.setText(t);
		if (img != null)
			item.setImage(loadImage(img));
		if (a != 0)
			item.setAccelerator(a);
		return item;
	}

	public void addMenuBar() {
		menu = new Menu(shell, SWT.BAR);
		shell.setMenuBar(menu);

		MenuItem item;
		Menu submenu;

		item = new MenuItem(menu, SWT.CASCADE);
		item.setText("File");
		submenu = new Menu(shell, SWT.DROP_DOWN);
		item.setMenu(submenu);

		newMnu =
			createMenuItem(
				submenu,
				"&New ...\tCtrl+N",
				"images/menu_new16.gif",
				SWT.CTRL + 'N');
		newMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				newFile();
			}
		});

		openMnu =
			createMenuItem(
				submenu,
				"&Open ...\tCtrl+O",
				"images/menu_open16.gif",
				SWT.CTRL + 'O');
		openMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				openFile();
			}
		});

		closeMnu =
			createMenuItem(
				submenu,
				"&Close\tCtrl+C",
				"images/menu_close16.gif",
				SWT.CTRL + 'O');
		closeMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				closeFile();
			}
		});

		item = new MenuItem(submenu, SWT.SEPARATOR);

		exitMnu =
			createMenuItem(
				submenu,
				"&Exit\tCtrl+X",
				"images/menu_exit16.gif",
				SWT.CTRL + 'X');
		exitMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				exit();
			}
		});

		item = new MenuItem(menu, SWT.CASCADE);
		item.setText("Actions");
		submenu = new Menu(shell, SWT.DROP_DOWN);
		item.setMenu(submenu);

		addMnu =
			createMenuItem(
				submenu,
				"&Add ...\tShift+A",
				"images/menu_add16.gif",
				SWT.SHIFT + 'A');
		addMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				add();
			}
		});

		deleteMnu =
			createMenuItem(
				submenu,
				"&Delete ...\tShift+D",
				"images/menu_delete16.gif",
				SWT.SHIFT + 'D');
		deleteMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				delete();
			}
		});

		extractMnu =
			createMenuItem(
				submenu,
				"&Extract\tShift+E",
				"images/menu_extract16.gif",
				SWT.SHIFT + 'E');
		extractMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				extract();
			}
		});

		viewMnu =
			createMenuItem(
				submenu,
				"&View\tShift+V",
				"images/menu_view16.gif",
				SWT.SHIFT + 'V');
		viewMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				view();
			}
		});

		item = new MenuItem(menu, SWT.CASCADE);
		item.setText("Options");
		submenu = new Menu(shell, SWT.DROP_DOWN);
		item.setMenu(submenu);

		configMnu =
			createMenuItem(
				submenu,
				"&Configuration...",
				"images/menu_config16.gif",
				0);
		configMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				config();
			}
		});

		item = new MenuItem(menu, SWT.CASCADE);
		item.setText("Help");
		submenu = new Menu(shell, SWT.DROP_DOWN);
		item.setMenu(submenu);

		aboutMnu =
			createMenuItem(
				submenu,
				"&About JavaZip...",
				"images/menu_about16.gif",
				0);
		aboutMnu.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				about();
			}
		});
	}

	public void addSeparator() {
		new Label(shell, SWT.SEPARATOR | SWT.HORIZONTAL).setLayoutData(
			new GridData(GridData.FILL_HORIZONTAL));
	}

	private ToolItem createToolItem(ToolBar bar, String t, String img) {
		ToolItem item = new ToolItem(bar, SWT.NONE);
		item.setText(t);
		item.setImage(loadImage(img));
		return item;
	}

	public void addToolBar() {
		toolBar = new ToolBar(shell, SWT.FLAT);
		toolBar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		ToolItem item;

		newBtn = createToolItem(toolBar, "New", "images/tb_new.gif");
		newBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				newFile();
			}
		});

		openBtn = createToolItem(toolBar, "Open", "images/tb_open.gif");
		openBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				openFile();
			}
		});

		item = new ToolItem(toolBar, SWT.SEPARATOR);

		addBtn = createToolItem(toolBar, "Add", "images/tb_add.gif");
		addBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				add();
			}
		});
		deleteBtn = createToolItem(toolBar, "Delete", "images/tb_delete.gif");
		deleteBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				delete();
			}
		});
		extractBtn =
			createToolItem(toolBar, "Extract", "images/tb_extract.gif");
		extractBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				extract();
			}
		});
		viewBtn = createToolItem(toolBar, "View", "images/tb_view.gif");
		viewBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				view();
			}
		});

		item = new ToolItem(toolBar, SWT.SEPARATOR);

		configBtn =
			createToolItem(toolBar, "Configuration", "images/tb_config.gif");
		configBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				config();
			}
		});

		item = new ToolItem(toolBar, SWT.SEPARATOR);

		aboutBtn = createToolItem(toolBar, "About", "images/tb_about.gif");
		aboutBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				about();
			}
		});

		item = new ToolItem(toolBar, SWT.SEPARATOR);

		exitBtn = createToolItem(toolBar, "Exit", "images/tb_exit.gif");
		exitBtn.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event e) {
				exit();
			}
		});
	}

	public void addContents() {
		table = new Table(shell, SWT.BORDER | SWT.FULL_SELECTION);
		table.setLayoutData(
			new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
		table.setHeaderVisible(true);

		TableColumn col;
		col = new TableColumn(table, SWT.LEFT);
		col.setText("Name");
		col.setWidth(200);
		col = new TableColumn(table, SWT.LEFT);
		col.setText("Modified");
		col.setWidth(100);
		col = new TableColumn(table, SWT.RIGHT);
		col.setText("Size");
		col.setWidth(60);
		col = new TableColumn(table, SWT.CENTER);
		col.setText("Ratio");
		col.setWidth(40);
		col = new TableColumn(table, SWT.RIGHT);
		col.setText("Packed");
		col.setWidth(60);
		col = new TableColumn(table, SWT.LEFT);
		col.setText("Path");
		col.setWidth(300);

		table.setFocus();
	}

	public void addStatusLine() {
		statusLine = new CLabel(shell, SWT.SHADOW_IN);
		statusLine.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	}

	public void newFile() {

	}

	public void loadZipFile(String zipFileName) {
		table.removeAll();
		try {
			ZipFile file = new ZipFile(zipFileName);
			for (Enumeration enum = file.entries(); enum.hasMoreElements();) {
				ZipEntry entry = (ZipEntry) enum.nextElement();
				if (entry.isDirectory() || entry.getName().equals("..\\")) {
					continue;
				} else {
					String name = entry.getName();
					Date modifiedTime = new Date(entry.getTime());
					long size = entry.getSize();
					long compressedSize = entry.getCompressedSize();
					long ratio = (size - compressedSize) * 100 / size;

					//convert all "/" to "\"
					name = name.replace('/', '\\');
					String baseName, path, extension;

					int idx = name.lastIndexOf('\\');
					if (idx > 0) {
						baseName = name.substring(idx + 1);
						path = name.substring(0, idx + 1);
					} else {
						baseName = name;
						path = "";
					}
					idx = baseName.lastIndexOf('.');
					if (idx > 0)
						extension = baseName.substring(idx + 1);
					else
						extension = "";

					TableItem item = new TableItem(table, SWT.NONE);
					item.setText(0, baseName);

					Program p = Program.findProgram(extension);
					if (p != null) {
						ImageData data = p.getImageData();
						if (data != null)
							item.setImage(
								0,
								new Image(shell.getDisplay(), data));
						else
							item.setImage(0, unknownImg);
					} else
						item.setImage(0, unknownImg);

					item.setText(1, dataFormat.format(modifiedTime));
					item.setText(2, String.valueOf(size));
					item.setText(3, String.valueOf(ratio) + "%");
					item.setText(4, String.valueOf(compressedSize));
					item.setText(5, path);
				}
			}
		} catch (IOException e) {
			System.out.println(e);
		}
	}

	public void openFile() {
		FileDialog dialog = new FileDialog(shell, SWT.OPEN);
		dialog.setFilterNames(
			new String[] { "Zip Files (*.zip)", "All Files (*.*)" });
		dialog.setFilterExtensions(new String[] { "*.zip", "*.*" });
		if (dialog.open() != null) {
			final String name = dialog.getFilterPath() + File.separator + dialog.getFileName(); 
			display.syncExec(new Runnable() {
				public void run() {
					loadZipFile(name);
				}
			});
		}
	}
	public void closeFile() {

	}
	public void exit() {
		shell.close();
	}

	public void add() {

	}
	public void delete() {

	}
	public void extract() {

	}
	public void view() {

	}
	public void config() {

	}
	public void about() {
		AboutWnd wnd = new AboutWnd(shell);
		wnd.run();
	}

	public void run() {
		shell.pack();
		shell.setSize(500, 300);

		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
		Display.getCurrent().dispose();
	}

	public static void main(String[] args) {
		MainWnd ui = new MainWnd();
		ui.run();
	}
}