rtfeditorkit.java

Mobile 应用程序使用 Java Micro Edition (Java ME) 平台

/*
 * @(#)RTFEditorKit.java	1.14 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package javax.swing.text.rtf;

import java.awt.*;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.Action;
import javax.swing.text.*;
import javax.swing.*;

/**
 * This is the default implementation of RTF editing
 * functionality.  The RTF support was not written by the 
 * Swing team.  In the future we hope to improve the support
 * provided.
 *
 * @author  Timothy Prinzing (of this class, not the package!)
 * @version 1.14 11/17/05
 */
public class RTFEditorKit extends StyledEditorKit {

    /**
     * Constructs an RTFEditorKit.
     */
    public RTFEditorKit() {
	super();
    }

    /**
     * Get the MIME type of the data that this
     * kit represents support for.  This kit supports
     * the type <code>text/rtf</code>.
     *
     * @return the type
     */
    public String getContentType() {
	return "text/rtf";
    }

    /**
     * Insert content from the given stream which is expected
     * to be in a format appropriate for this kind of content
     * handler.
     *
     * @param in  The stream to read from
     * @param doc The destination for the insertion.
     * @param pos The location in the document to place the
     *   content.
     * @exception IOException on any I/O error
     * @exception BadLocationException if pos represents an invalid
     *   location within the document.
     */
    public void read(InputStream in, Document doc, int pos) throws IOException, BadLocationException {

	if (doc instanceof StyledDocument) {
	    // PENDING(prinz) this needs to be fixed to
	    // insert to the given position.
	    RTFReader rdr = new RTFReader((StyledDocument) doc);
	    rdr.readFromStream(in);
	    rdr.close();
	} else {
	    // treat as text/plain
	    super.read(in, doc, pos);
	}
    }

    /**
     * Write content from a document to the given stream
     * in a format appropriate for this kind of content handler.
     *
     * @param out  The stream to write to
     * @param doc The source for the write.
     * @param pos The location in the document to fetch the
     *   content.
     * @param len The amount to write out.
     * @exception IOException on any I/O error
     * @exception BadLocationException if pos represents an invalid
     *   location within the document.
     */
    public void write(OutputStream out, Document doc, int pos, int len)
	throws IOException, BadLocationException {

	    // PENDING(prinz) this needs to be fixed to
	    // use the given document range.
	    RTFGenerator.writeDocument(doc, out);
    }

    /**
     * Insert content from the given stream, which will be
     * treated as plain text.
     *
     * @param in  The stream to read from
     * @param doc The destination for the insertion.
     * @param pos The location in the document to place the
     *   content.
     * @exception IOException on any I/O error
     * @exception BadLocationException if pos represents an invalid
     *   location within the document.
     */
    public void read(Reader in, Document doc, int pos)
	throws IOException, BadLocationException {

	if (doc instanceof StyledDocument) {
	    RTFReader rdr = new RTFReader((StyledDocument) doc);
	    rdr.readFromReader(in);
	    rdr.close();
	} else {
	    // treat as text/plain
	    super.read(in, doc, pos);
	}
    }

    /**
     * Write content from a document to the given stream
     * as plain text.
     *
     * @param out  The stream to write to
     * @param doc The source for the write.
     * @param pos The location in the document to fetch the
     *   content.
     * @param len The amount to write out.
     * @exception IOException on any I/O error
     * @exception BadLocationException if pos represents an invalid
     *   location within the document.
     */
    public void write(Writer out, Document doc, int pos, int len)
	throws IOException, BadLocationException {

	throw new IOException("RTF is an 8-bit format");
    }

}