TextComponentPrintable.java 文件源码

/**
 * Returns {@code TextComponentPrintable} to print {@code textComponent}.
 *
 * @param textComponent {@code JTextComponent} to print
 * @param headerFormat the page header, or {@code null} for none
 * @param footerFormat the page footer, or {@code null} for none
 * @return {@code TextComponentPrintable} to print {@code textComponent}
 */
public static Printable getPrintable(final JTextComponent textComponent,
        final MessageFormat headerFormat,
        final MessageFormat footerFormat) {

    if (textComponent instanceof JEditorPane
            && isFrameSetDocument(textComponent.getDocument())) {
        //for document with frames we create one printable per
        //frame and merge them with the CompoundPrintable.
        List<JEditorPane> frames = getFrames((JEditorPane) textComponent);
        List<CountingPrintable> printables =
            new ArrayList<CountingPrintable>();
        for (JEditorPane frame : frames) {
            printables.add((CountingPrintable)
                           getPrintable(frame, headerFormat, footerFormat));
        }
        return new CompoundPrintable(printables);
    } else {
        return new TextComponentPrintable(textComponent,
           headerFormat, footerFormat);
    }
}