RubyTemplatePreferencePage.java

/*******************************************************************************
 * Copyright (c) 2000, 2004  John-Mason P. Shackelford 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:
 * 	   John-Mason P. Shackelford - initial API and implementation
 *     IBM Corporation - bug fixes
 *******************************************************************************/
package org.rubypeople.rdt.internal.ui.preferences;

import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.templates.Template;
import org.eclipse.jface.text.templates.persistence.TemplatePersistenceData;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.texteditor.templates.TemplatePreferencePage;
import org.rubypeople.rdt.internal.ui.RubyPlugin;
import org.rubypeople.rdt.internal.ui.rubyeditor.RubySourceViewer;
import org.rubypeople.rdt.internal.ui.text.IRubyPartitions;
import org.rubypeople.rdt.internal.ui.text.SimpleRubySourceViewerConfiguration;
import org.rubypeople.rdt.internal.ui.text.template.contentassist.RubyTemplateAccess;
import org.rubypeople.rdt.ui.PreferenceConstants;
import org.rubypeople.rdt.ui.text.RubyTextTools;

/**
 * @see org.eclipse.jface.preference.PreferencePage
 */
public class RubyTemplatePreferencePage extends TemplatePreferencePage {

	public RubyTemplatePreferencePage() {
		setPreferenceStore(RubyPlugin.getDefault().getPreferenceStore());
		setTemplateStore(RubyTemplateAccess.getDefault().getTemplateStore());
		setContextTypeRegistry(RubyTemplateAccess.getDefault().getContextTypeRegistry());
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.preference.IPreferencePage#performOk()
	 */
	public boolean performOk() {
		boolean ok = super.performOk();
		RubyPlugin.getDefault().savePluginPreferences();
		return ok;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.texteditor.templates.TemplatePreferencePage#createViewer(org.eclipse.swt.widgets.Composite)
	 */
	protected SourceViewer createViewer(Composite parent) {		
		IDocument document= new Document();
		RubyTextTools tools= RubyPlugin.getDefault().getRubyTextTools();
		tools.setupRubyDocumentPartitioner(document, IRubyPartitions.RUBY_PARTITIONING);
		IPreferenceStore store= RubyPlugin.getDefault().getCombinedPreferenceStore();
		SourceViewer viewer= new RubySourceViewer(parent, null, null, false, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL, store);
		SimpleRubySourceViewerConfiguration configuration= new SimpleRubySourceViewerConfiguration(tools.getColorManager(), store, null, IRubyPartitions.RUBY_PARTITIONING, false);
		viewer.configure(configuration);
		viewer.setEditable(false);
		viewer.setDocument(document);
	
		Font font= JFaceResources.getFont(PreferenceConstants.EDITOR_TEXT_FONT);
		viewer.getTextWidget().setFont(font);
		new RubySourcePreviewerUpdater(viewer, configuration, store);
		
		Control control= viewer.getControl();
		GridData data= new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL);
		control.setLayoutData(data);
		
		return viewer;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.texteditor.templates.TemplatePreferencePage#getFormatterPreferenceKey()
	 */
	protected String getFormatterPreferenceKey() {
		return PreferenceConstants.TEMPLATES_USE_CODEFORMATTER;
	}

	/*
	 * @see org.eclipse.ui.texteditor.templates.TemplatePreferencePage#updateViewerInput()
	 */
	protected void updateViewerInput() {
		IStructuredSelection selection= (IStructuredSelection) getTableViewer().getSelection();
		SourceViewer viewer= getViewer();
		
		if (selection.size() == 1 && selection.getFirstElement() instanceof TemplatePersistenceData) {
			TemplatePersistenceData data= (TemplatePersistenceData) selection.getFirstElement();
			Template template= data.getTemplate();
			String contextId= template.getContextTypeId();
					
			IDocument doc= viewer.getDocument();
			
			String start= null;
			if ("rdoc".equals(contextId)) { //$NON-NLS-1$
				start= "/**" + doc.getLegalLineDelimiters()[0]; //$NON-NLS-1$
			} else
				start= ""; //$NON-NLS-1$
			
			doc.set(start + template.getPattern());
			int startLen= start.length();
			viewer.setDocument(doc, startLen, doc.getLength() - startLen);

		} else {
			viewer.getDocument().set(""); //$NON-NLS-1$
		}		
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.texteditor.templates.TemplatePreferencePage#isShowFormatterSetting()
	 */
	protected boolean isShowFormatterSetting() {
		return false;
	}
}