package com.image.capture;

import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.image.*;

public class ClipboardUtil {
	private Clipboard cli;

	public void writeToClipboard(String str) {
		if (str != null) {
			cli = Toolkit.getDefaultToolkit().getSystemClipboard();
			Transferable text = new StringSelection(str);
			cli.setContents(text, null);
		}
	}

	public void writeToClipboard(BufferedImage image) {
		cli = Toolkit.getDefaultToolkit().getSystemClipboard();
		cli.setContents(new ImageChange(image), null);
	}

	public String getSysClipboardText() {
		String ret = "";
		cli = Toolkit.getDefaultToolkit().getSystemClipboard();
		// 获取剪切板中的内容
		Transferable clipTf = cli.getContents(null);
		if (clipTf != null) {
			// 检查内容是否是文本类型
			if (clipTf.isDataFlavorSupported(DataFlavor.stringFlavor)) {
				try {
					ret = (String) clipTf
							.getTransferData(DataFlavor.stringFlavor);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		}
		return ret;
	}

	class ImageChange implements Transferable {
		private BufferedImage theImage;

		public ImageChange(BufferedImage image) {
			theImage = image;
		}

		public DataFlavor[] getTransferDataFlavors() {
			return new DataFlavor[] { DataFlavor.imageFlavor };
		}

		public boolean isDataFlavorSupported(DataFlavor flavor) {
			return flavor.equals(DataFlavor.imageFlavor);
		}

		public Object getTransferData(DataFlavor flavor)
				throws UnsupportedFlavorException {
			if (flavor.equals(DataFlavor.imageFlavor)) {
				return theImage;
			} else {
				throw new UnsupportedFlavorException(flavor);
			}
		}
	}
}