aboutdialog.java

类似于MSN

/*
* LumaQQ - Java QQ Client
*
* Copyright (C) 2004 luma <[e-mail]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.tsinghua.lumaqq.shells;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import edu.tsinghua.lumaqq.IconHolder;
import edu.tsinghua.lumaqq.LumaQQ;
import edu.tsinghua.swt.widgets.MySWT;
import edu.tsinghua.swt.widgets.ShutterLabel;

/**
 * 关于对话框
 * 
 * @author 马若劼
 */
public class AboutDialog extends Dialog {
	private IconHolder icons = IconHolder.getInstance();
	private ShutterLabel btnPhoto;
	
	/**
	 * @param parent
	 */
	public AboutDialog(Shell parent) {
		super(parent);
	}
	
	/**
	 * @param parent
	 * @param style
	 */
	public AboutDialog(Shell parent, int style) {
		super(parent, style);
	}	
    
	/**
	 * 打开对话框
	 */
	public void open() {
	    // create dialog
	    Shell parent = getParent();
	    Display display = parent.getDisplay();
		Shell dialog = new Shell(parent, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL | SWT.MIN);
		// init child controls
		initLayout(dialog);
		// set title and image
		dialog.setImage(icons.getResource(IconHolder.icoQQ));
		dialog.setText(LumaQQ.getResourceString("about.title"));
		// set dialog to center of screen
		Rectangle dialogRect = dialog.getBounds();
		Rectangle displayRect = display.getBounds();
		dialog.setLocation((displayRect.width-dialogRect.width)/2, (displayRect.height-dialogRect.height)/2);
		// event loop
		dialog.pack();
		dialog.open();
		while(!dialog.isDisposed()) 
			if(!display.readAndDispatch()) 
			    display.sleep();
	}

	/**
	 * @param dialog
	 */
	private void initLayout(final Shell dialog) {
		dialog.setLayout(new GridLayout());
		// photo
		btnPhoto = new ShutterLabel(dialog, MySWT.FLAT | MySWT.NO_ZOOM | MySWT.HOVER | SWT.CENTER, LumaQQ.getResourceString("about.text"), icons.getResource(IconHolder.icoQQ));
		btnPhoto.setTextOrientation(SWT.BOTTOM);
		btnPhoto.setMouseTrackColor(dialog.getDisplay().getSystemColor(SWT.COLOR_BLUE));
		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalAlignment = GridData.CENTER;
		btnPhoto.setLayoutData(gd);
		btnPhoto.addMouseListener(
			new MouseAdapter() {
				public void mouseUp(MouseEvent e) {
					if((e.stateMask & SWT.CTRL) != 0) {
						btnPhoto.setImage(icons.getResource(IconHolder.icoMe));
						dialog.layout();
						dialog.pack();
					}
				}
			}
		);
		// close button
		Button btnClose = new Button(dialog, SWT.PUSH);
		btnClose.setText(LumaQQ.getResourceString("about.button.close"));
		gd = new GridData();
		gd.horizontalAlignment = GridData.CENTER;
		btnClose.setLayoutData(gd);
		btnClose.addSelectionListener(
			new SelectionAdapter() {
				public void widgetSelected(SelectionEvent e) {
					dialog.close();
				}
			}
		);
	}
}