/*
* 07/28/2008
*
* RtfTransferable.java - Used during drag-and-drop to represent RTF text.
*
* This library is distributed under a modified BSD license. See the included
* RSyntaxTextArea.License.txt file for details.
*/
package org.fife.ui.rsyntaxtextarea;
import java.awt.datatransfer.*;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.StringReader;
/**
* Object used during copy/paste and DnD operations to represent RTF text.
* It can return the text being moved as either RTF or plain text. This
* class is basically the same as
* <code>java.awt.datatransfer.StringSelection</code>, except that it can also
* return the text as RTF.
*
* @author Robert Futrell
* @version 1.0
*/
class RtfTransferable implements Transferable {
/**
* The RTF data, in bytes (the RTF is 7-bit ascii).
*/
private byte[] data;
/**
* The "flavors" the text can be returned as.
*/
private final DataFlavor[] FLAVORS = {
new DataFlavor("text/rtf", "RTF"),
DataFlavor.stringFlavor,
DataFlavor.plainTextFlavor // deprecated
};
/**
* Constructor.
*
* @param data The RTF data.
*/
public RtfTransferable(byte[] data) {
this.data = data;
}
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
if (flavor.equals(FLAVORS[0])) { // RTF
return new ByteArrayInputStream(data==null ? new byte[0] : data);
}
else if (flavor.equals(FLAVORS[1])) { // stringFlavor
return data==null ? "" : RtfToText.getPlainText(data);
}
else if (flavor.equals(FLAVORS[2])) { // plainTextFlavor (deprecated)
String text = ""; // Valid if data==null
if (data!=null) {
text = RtfToText.getPlainText(data);
}
return new StringReader(text);
}
else {
throw new UnsupportedFlavorException(flavor);
}
}
public DataFlavor[] getTransferDataFlavors() {
return FLAVORS.clone();
}
public boolean isDataFlavorSupported(DataFlavor flavor) {
for (int i=0; i<FLAVORS.length; i++) {
if (flavor.equals(FLAVORS[i])) {
return true;
}
}
return false;
}
}