formresetactionhandler.java

来自「Java生成PDF Java生成PDF Java生成PDF」· Java 代码 · 共 53 行

// $Id: FormResetActionHandler.java,v 1.6 2007/09/12 10:04:59 mike Exp $

package org.faceless.pdf2.viewer2.feature;

import org.faceless.pdf2.viewer2.*;
import org.faceless.pdf2.*;
import java.util.*;

/**
 * Create a handler to handler "FormReset" actions.
 * The name of this feature is "FormResetActionHandler".
 * <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 FormResetActionHandler extends ActionHandler
{
    private static FormResetActionHandler instance;

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

    private FormResetActionHandler() {
        super("FormResetActionHandler");
    }

    public boolean matches(DocumentPanel panel, PDFAction action) {
        return action.getType().equals("FormReset");
    }

    public void run(DocumentPanel docpanel, PDFAction action) {
        Form form = docpanel.getPDF().getForm();
        for (Iterator i = form.getElements().values().iterator();i.hasNext();) {
            FormElement field = (FormElement)i.next();
            if (field instanceof FormText) {
                ((FormText)field).setValue(((FormText)field).getDefaultValue());
            } else if (field instanceof FormRadioButton) {
                ((FormRadioButton)field).setValue(((FormRadioButton)field).getDefaultValue());
            } else if (field instanceof FormCheckbox) {
                ((FormCheckbox)field).setValue(((FormCheckbox)field).getDefaultValue());
            } else if (field instanceof FormChoice) {
                ((FormChoice)field).setValue(((FormChoice)field).getDefaultValue());
            }
            field.rebuild();
            docpanel.redraw(field);
        }
    }
}