CriteriaTextViewer.java example

Explorer
teiid-designer-master
/*
 * Copyright (C) 2002-2004 Andrea Mazzolini
 * andreamazzolini@users.sourceforge.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.teiid.designer.mapping.ui.choice;


import org.eclipse.jface.text.IAutoEditStrategy;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentPartitioner;
import org.eclipse.jface.text.ITextDoubleClickStrategy;
import org.eclipse.jface.text.ITextHover;
import org.eclipse.jface.text.contentassist.IContentAssistant;
import org.eclipse.jface.text.presentation.IPresentationReconciler;
import org.eclipse.jface.text.rules.FastPartitioner;
import org.eclipse.jface.text.source.IAnnotationModel;
import org.eclipse.jface.text.source.IVerticalRuler;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.widgets.Composite;
import org.teiid.designer.ui.common.graphics.ColorManager;
import org.teiid.query.ui.sqleditor.sql.SqlPartitionScanner;



/**
 * @since 8.0
 */
public class CriteriaTextViewer extends SourceViewer {

	IPresentationReconciler fPresentationReconciler;
	private IDocumentPartitioner partitioner;
    private static SqlPartitionScanner scanner= null;
    private final static String[] TYPES= new String[] { SqlPartitionScanner.SQL_CODE,SqlPartitionScanner.SQL_MULTILINE_COMMENT };

	//IPreferenceStore store;
    IAutoEditStrategy autoIndentStrategy;
    ITextDoubleClickStrategy doubleClickStrategy;
    IContentAssistant contentAssistant;
    ITextHover textHover;

	//private AnnotationModel fVisualAnnotationModel;
    CriteriaSourceViewerConfiguration configuration;

	@Override
    public void setDocument(IDocument dc){
		//s_log.debug("setDocument:"+dc);
		IDocument previous=this.getDocument();
		if(previous!=null){
			partitioner.disconnect();
		}
		super.setDocument(dc);
		if(dc!=null){
			//s_log.debug("setDocument connect:"+dc);
			partitioner.connect(dc);
			dc.setDocumentPartitioner(partitioner);
		}
	}

	public CriteriaTextViewer( Composite parent,
                               IVerticalRuler ruler,
                               int style,
                               ColorManager colorManager,
                               CriteriaSourceViewerConfiguration csvc ) {

		super(parent,ruler,style);

		configuration = csvc;

		fPresentationReconciler= configuration.getPresentationReconciler(null);
		contentAssistant=configuration.getContentAssistant(null);
		if(contentAssistant!=null){
			contentAssistant.install(this);
		}

		if (fPresentationReconciler != null)
			fPresentationReconciler.install(this);

        doubleClickStrategy = configuration.getDoubleClickStrategy(null,""); //$NON-NLS-1$

        autoIndentStrategy = configuration.getAutoEditStrategies(this, IDocument.DEFAULT_CONTENT_TYPE)[0];
        prependAutoEditStrategy(autoIndentStrategy, IDocument.DEFAULT_CONTENT_TYPE);

        textHover = configuration.getTextHover(this,IDocument.DEFAULT_CONTENT_TYPE);
        setTextHover(textHover,IDocument.DEFAULT_CONTENT_TYPE);

		partitioner = createSqlPartitioner();
		parent.addDisposeListener(new DisposeListener() {
			@Override
			public void widgetDisposed(DisposeEvent event) {
					contentAssistant.uninstall();
				}
		});
	}

//	private class PreferenceListener implements IPropertyChangeListener {
//		public void propertyChange(PropertyChangeEvent event) {
//			adaptToPreferenceChange(event);
//		}
//	};
//	void adaptToPreferenceChange(PropertyChangeEvent event) {
//		if(event.getProperty().equals(IConstants.FONT)){//$NON-NLS-1$
//			FontData [] fData=PreferenceConverter.getFontDataArray(store,IConstants.FONT);//$NON-NLS-1$
//			String des=store.getString(IConstants.FONT);//$NON-NLS-1$
//			JFaceResources.getFontRegistry().put(des,fData);
//			Control ctrl=this.getControl();
//			if(ctrl!=null){
//				ctrl.setFont(JFaceResources.getFontRegistry().get(des));
//			}
//
//		}
//	}
//	PreferenceListener fPreferenceListener= new PreferenceListener();

    /**
     * Return a partitioner for SQL files.
     */
    private FastPartitioner createSqlPartitioner() {
		return new FastPartitioner(getSqlPartitionScanner(), TYPES);
    }

    /**
     * Return a scanner for SQL partitions.
     */
     private SqlPartitionScanner getSqlPartitionScanner() {
        if (scanner == null)
            scanner= new SqlPartitionScanner();
        return scanner;
    }

    public void showAssistance(){
            contentAssistant.showPossibleCompletions();
    }

    public void handleDoubleClick(){
        doubleClickStrategy.doubleClicked(this);
    }

	/* (non-Javadoc)
	 * @see org.eclipse.jface.text.source.ISourceViewer#setDocument(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.source.IAnnotationModel)
	 */
	@Override
    public void setDocument(
		IDocument document,
		IAnnotationModel annotationModel) {
		setDocument(document);
		if(annotationModel!=null && document!=null)
			annotationModel.connect(document);
	}

}