annotationlinkfactory.java

来自「Java生成PDF Java生成PDF Java生成PDF」· Java 代码 · 共 62 行

// $Id: AnnotationLinkFactory.java,v 1.6 2007/11/05 08:36:13 mike Exp $

package org.faceless.pdf2.viewer2.feature;

import org.faceless.pdf2.viewer2.*;
import org.faceless.pdf2.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;

/**
 * Create annotations that handle {@link AnnotationLink} objects.
 * The name of this feature is "AnnotationLink".
 * <p><i>This code is copyright the Big Faceless Organization. You're welcome to use, modify and distribute it in any form in your own projects, provided those projects continue to make use of the Big Faceless PDF library.</i></p>
 * @since 2.8
 */
public class AnnotationLinkFactory extends AnnotationComponentFactory
{
    private static AnnotationLinkFactory instance;

    /**
     * Return the AnnotationLinkFactory
     */
    public static AnnotationLinkFactory getInstance() {
        if (instance==null) instance = new AnnotationLinkFactory();
        return instance;
    }

    private AnnotationLinkFactory() {
        super("AnnotationLink");
    }

    public boolean matches(PDFAnnotation annot) {
        return annot instanceof AnnotationLink;
    }

    public JComponent createComponent(final PagePanel pagepanel, final PDFAnnotation annot) {
        final JComponent comp = new JPanel() {
            public void paintComponent(Graphics g) {
                 AnnotationComponentFactory.paintComponent(this, "N", g);
            }
        };
        comp.addMouseListener(new MouseListener() {
            public void mouseEntered(MouseEvent event) {
                comp.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
            }
            public void mouseExited(MouseEvent event) {
                comp.setCursor(Cursor.getDefaultCursor());
            }
            public void mouseClicked(MouseEvent event) {
                DocumentPanel panel = pagepanel.getViewport().getDocumentPanel();
                panel.getJSManager().runEventLinkMouseUp(panel, (AnnotationLink)annot);
            }
            public void mousePressed(MouseEvent event) { }
            public void mouseReleased(MouseEvent event) { }
        });
        return comp;
    }
}