freeformpage.java

A great example of the Eclipse Forms.

/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.forms.article.rcp;
import java.io.*;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.forms.*;
import org.eclipse.ui.forms.article.FormArticlePlugin;
import org.eclipse.ui.forms.editor.*;
import org.eclipse.ui.forms.events.*;
import org.eclipse.ui.forms.widgets.*;
/**
 * @author dejan
 * 
 * To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Generation - Code and Comments
 */
public class FreeFormPage extends FormPage {
	/**
	 * @param id
	 * @param title
	 */
	public FreeFormPage(FormEditor editor) {
		super(editor, "first", Messages.getString("FreeFormPage.label")); //$NON-NLS-1$ //$NON-NLS-2$
	}
	protected void createFormContent(IManagedForm managedForm) {
		ScrolledForm form = managedForm.getForm();
		FormToolkit toolkit = managedForm.getToolkit();
		form.setText(Messages.getString("FreeFormPage.title")); //$NON-NLS-1$
		form.setBackgroundImage(FormArticlePlugin.getDefault().getImage(FormArticlePlugin.IMG_FORM_BG));
		TableWrapLayout layout = new TableWrapLayout();
		layout.leftMargin = 10;
		layout.rightMargin = 10;
		form.getBody().setLayout(layout);
		TableWrapData td;
		Hyperlink link = toolkit.createHyperlink(form.getBody(),
				Messages.getString("FreeFormPage.link"), SWT.WRAP); //$NON-NLS-1$
		link.addHyperlinkListener(new HyperlinkAdapter() {
			public void linkActivated(HyperlinkEvent e) {
				try {
					Thread.sleep(1000);
				} catch (InterruptedException ex) {
				}
			}
		});
		td = new TableWrapData();
		td.align = TableWrapData.LEFT;
		link.setLayoutData(td);
		createExpandable(form, toolkit);
		createFormTextSection(form, toolkit);
	}
	private void createExpandable(final ScrolledForm form, final FormToolkit toolkit) {
		final ExpandableComposite exp = toolkit.createExpandableComposite(form
				.getBody(), ExpandableComposite.TREE_NODE
		//	ExpandableComposite.NONE
				);
		exp.setActiveToggleColor(toolkit.getHyperlinkGroup()
				.getActiveForeground());
		exp.setToggleColor(toolkit.getColors().getColor(FormColors.SEPARATOR));
		Composite client = toolkit.createComposite(exp);
		exp.setClient(client);
		TableWrapLayout elayout = new TableWrapLayout();
		client.setLayout(elayout);
		elayout.leftMargin = elayout.rightMargin = 0;
		final Button button = toolkit.createButton(client, Messages.getString("FreeFormPage.button"), SWT.PUSH); //$NON-NLS-1$
		button.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				//openFormWizard(button.getShell(), toolkit.getColors());
			}
		});
		exp.addExpansionListener(new ExpansionAdapter() {
			public void expansionStateChanged(ExpansionEvent e) {
				form.reflow(true);
			}
		});
		exp.setText(Messages.getString("FreeFormPage.sectionTitle1")); //$NON-NLS-1$
		TableWrapData td = new TableWrapData();
		//td.colspan = 2;
		td.align = TableWrapData.LEFT;
		//td.align = TableWrapData.FILL;
		exp.setLayoutData(td);
	}
	
	private void createFormTextSection(final ScrolledForm form, FormToolkit toolkit) {
		Section section =
			toolkit.createSection(
				form.getBody(),
				Section.TWISTIE | Section.DESCRIPTION);
		section.setActiveToggleColor(
			toolkit.getHyperlinkGroup().getActiveForeground());
		section.setToggleColor(
			toolkit.getColors().getColor(FormColors.SEPARATOR));
		toolkit.createCompositeSeparator(section);
		FormText rtext = toolkit.createFormText(section, false);
		section.setClient(rtext);
		loadFormText(rtext, toolkit);

		section.addExpansionListener(new ExpansionAdapter() {
			public void expansionStateChanged(ExpansionEvent e) {
				form.reflow(false);
			}
		});

		section.setText(Messages.getString("FreeFormPage.sectionTitle2")); //$NON-NLS-1$
		section.setDescription(
		Messages.getString("FreeFormPage.sectionDescription")); //$NON-NLS-1$
		TableWrapData td = new TableWrapData();
		td.align = TableWrapData.FILL;
		td.grabHorizontal = true;
		section.setLayoutData(td);
	}

	private void loadFormText(final FormText rtext, FormToolkit toolkit) {
		rtext.addHyperlinkListener(new HyperlinkAdapter() {
			public void linkActivated(HyperlinkEvent e) {
				MessageDialog.openInformation(rtext.getShell(), Messages.getString("FreeFormPage.mtitle"),  //$NON-NLS-1$
				Messages.getString("FreeFormPage.mtext") + e.getHref()); //$NON-NLS-1$
			}
		});
		rtext.setHyperlinkSettings(toolkit.getHyperlinkGroup());
		rtext.setImage("image1", FormArticlePlugin.getDefault().getImage(FormArticlePlugin.IMG_LARGE)); //$NON-NLS-1$
		InputStream is = FreeFormPage.class.getResourceAsStream("index.xml"); //$NON-NLS-1$
		if (is!=null) {
			rtext.setContents(is, true);
			try {
				is.close();
			}
			catch (IOException e) {
			}
		}
	}
}