snapshotpreviewdialog.java

lumaQQ的源文件

/*
* 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.ui.dialogs;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

/**
 * 预览抓到的图片
 *
 * @author luma
 */
public class SnapshotPreviewDialog extends Dialog {
	private Image image;

	protected SnapshotPreviewDialog(Shell parentShell, Image image) {
		super(parentShell);
		this.image = image;
	}

	@Override
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);
		newShell.setText("Result Preview");
	}
	
	@Override
	protected Control createDialogArea(Composite parent) {
		Composite control = (Composite)super.createDialogArea(parent);		
	
		Composite canvas = new Composite(control, SWT.BORDER);
		GridData gd = new GridData();
		Rectangle rect = image.getBounds();
		gd.widthHint = rect.width;
		gd.heightHint = rect.height;
		canvas.setLayoutData(gd);
		canvas.addPaintListener(new PaintListener() {
			public void paintControl(PaintEvent e) {
				e.gc.drawImage(image, 0, 0);
			}
		});
		
		return control;
	}
}