import sun.swing.text.TextComponentPrintable; //导入依赖的package包/类
/**
 * Returns a {@code Printable} to use for printing the content of this
 * {@code JTextComponent}. The returned {@code Printable} prints
 * the document as it looks on the screen except being reformatted
 * to fit the paper.
 * The returned {@code Printable} can be wrapped inside another
 * {@code Printable} in order to create complex reports and
 * documents.
 *
 *
 * <p>
 * The returned {@code Printable} shares the {@code document} with this
 * {@code JTextComponent}. It is the responsibility of the developer to
 * ensure that the {@code document} is not mutated while this {@code Printable}
 * is used. Printing behavior is undefined when the {@code document} is
 * mutated during printing.
 *
 * <p>
 * Page header and footer text can be added to the output by providing
 * {@code MessageFormat} arguments. The printing code requests
 * {@code Strings} from the formats, providing a single item which may be
 * included in the formatted string: an {@code Integer} representing the
 * current page number.
 *
 * <p>
 * The returned {@code Printable} when printed, formats the
 * document content appropriately for the page size. For correct
 * line wrapping the {@code imageable width} of all pages must be the
 * same. See {@link java.awt.print.PageFormat#getImageableWidth}.
 *
 * <p>
 * This method is thread-safe, although most Swing methods are not. Please
 * see <A
 * HREF="https://docs.oracle.com/javase/tutorial/uiswing/concurrency/index.html">
 * Concurrency in Swing</A> for more information.
 *
 * <p>
 * The returned {@code Printable} can be printed on any thread.
 *
 * <p>
 * This implementation returned {@code Printable} performs all painting on
 * the <i>Event Dispatch Thread</i>, regardless of what thread it is
 * used on.
 *
 * @param headerFormat the text, in {@code MessageFormat}, to be
 *        used as the header, or {@code null} for no header
 * @param footerFormat the text, in {@code MessageFormat}, to be
 *        used as the footer, or {@code null} for no footer
 * @return a {@code Printable} for use in printing content of this
 *         {@code JTextComponent}
 *
 *
 * @see java.awt.print.Printable
 * @see java.awt.print.PageFormat
 * @see javax.swing.text.Document#render(java.lang.Runnable)
 *
 * @since 1.6
 */
public Printable getPrintable(final MessageFormat headerFormat,
                              final MessageFormat footerFormat) {
    return TextComponentPrintable.getPrintable(
               this, headerFormat, footerFormat);
}
 

import sun.swing.text.TextComponentPrintable; //导入依赖的package包/类
/**
 * Returns a {@code Printable} to use for printing the content of this
 * {@code JTextComponent}. The returned {@code Printable} prints
 * the document as it looks on the screen except being reformatted
 * to fit the paper.
 * The returned {@code Printable} can be wrapped inside another
 * {@code Printable} in order to create complex reports and
 * documents.
 *
 *
 * <p>
 * The returned {@code Printable} shares the {@code document} with this
 * {@code JTextComponent}. It is the responsibility of the developer to
 * ensure that the {@code document} is not mutated while this {@code Printable}
 * is used. Printing behavior is undefined when the {@code document} is
 * mutated during printing.
 *
 * <p>
 * Page header and footer text can be added to the output by providing
 * {@code MessageFormat} arguments. The printing code requests
 * {@code Strings} from the formats, providing a single item which may be
 * included in the formatted string: an {@code Integer} representing the
 * current page number.
 *
 * <p>
 * The returned {@code Printable} when printed, formats the
 * document content appropriately for the page size. For correct
 * line wrapping the {@code imageable width} of all pages must be the
 * same. See {@link java.awt.print.PageFormat#getImageableWidth}.
 *
 * <p>
 * This method is thread-safe, although most Swing methods are not. Please
 * see <A
 * HREF="http://docs.oracle.com/javase/tutorial/uiswing/concurrency/index.html">
 * Concurrency in Swing</A> for more information.
 *
 * <p>
 * The returned {@code Printable} can be printed on any thread.
 *
 * <p>
 * This implementation returned {@code Printable} performs all painting on
 * the <i>Event Dispatch Thread</i>, regardless of what thread it is
 * used on.
 *
 * @param headerFormat the text, in {@code MessageFormat}, to be
 *        used as the header, or {@code null} for no header
 * @param footerFormat the text, in {@code MessageFormat}, to be
 *        used as the footer, or {@code null} for no footer
 * @return a {@code Printable} for use in printing content of this
 *         {@code JTextComponent}
 *
 *
 * @see java.awt.print.Printable
 * @see java.awt.print.PageFormat
 * @see javax.swing.text.Document#render(java.lang.Runnable)
 *
 * @since 1.6
 */
public Printable getPrintable(final MessageFormat headerFormat,
                              final MessageFormat footerFormat) {
    return TextComponentPrintable.getPrintable(
               this, headerFormat, footerFormat);
}
 

import sun.swing.text.TextComponentPrintable; //导入依赖的package包/类
/**
 * Returns a {@code Printable} to use for printing the content of this
 * {@code JTextComponent}. The returned {@code Printable} prints
 * the document as it looks on the screen except being reformatted
 * to fit the paper.
 * The returned {@code Printable} can be wrapped inside another
 * {@code Printable} in order to create complex reports and
 * documents.
 *
 *
 * <p>
 * The returned {@code Printable} shares the {@code document} with this
 * {@code JTextComponent}. It is the responsibility of the developer to
 * ensure that the {@code document} is not mutated while this {@code Printable}
 * is used. Printing behavior is undefined when the {@code document} is
 * mutated during printing.
 *
 * <p>
 * Page header and footer text can be added to the output by providing
 * {@code MessageFormat} arguments. The printing code requests
 * {@code Strings} from the formats, providing a single item which may be
 * included in the formatted string: an {@code Integer} representing the
 * current page number.
 *
 * <p>
 * The returned {@code Printable} when printed, formats the
 * document content appropriately for the page size. For correct
 * line wrapping the {@code imageable width} of all pages must be the
 * same. See {@link java.awt.print.PageFormat#getImageableWidth}.
 *
 * <p>
 * This method is thread-safe, although most Swing methods are not. Please
 * see <A
 * HREF="http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html">
 * How to Use Threads</A> for more information.
 *
 * <p>
 * The returned {@code Printable} can be printed on any thread.
 *
 * <p>
 * This implementation returned {@code Printable} performs all painting on
 * the <i>Event Dispatch Thread</i>, regardless of what thread it is
 * used on.
 *
 * @param headerFormat the text, in {@code MessageFormat}, to be
 *        used as the header, or {@code null} for no header
 * @param footerFormat the text, in {@code MessageFormat}, to be
 *        used as the footer, or {@code null} for no footer
 * @return a {@code Printable} for use in printing content of this
 *         {@code JTextComponent}
 *
 *
 * @see java.awt.print.Printable
 * @see java.awt.print.PageFormat
 * @see javax.swing.text.Document#render(java.lang.Runnable)
 *
 * @since 1.6
 */
public Printable getPrintable(final MessageFormat headerFormat,
                              final MessageFormat footerFormat) {
    return TextComponentPrintable.getPrintable(
               this, headerFormat, footerFormat);
}