org.eclipse.incquery.tooling.localsearch.ui.debugger.provider.MatchesTableLabelProvider.java Source code

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Here is the source code for org.eclipse.incquery.tooling.localsearch.ui.debugger.provider.MatchesTableLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2010-2015, Marton Bur, Akos Horvath, Zoltan Ujhelyi, Istvan Rath and Daniel Varro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Marton Bur - initial API and implementation
 *******************************************************************************/
package org.eclipse.incquery.tooling.localsearch.ui.debugger.provider;

import java.util.List;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.incquery.runtime.localsearch.MatchingFrame;
import org.eclipse.jface.resource.FontRegistry;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Display;

/**
 * 
 * @author Marton Bur
 *
 */
public class MatchesTableLabelProvider extends ColumnLabelProvider {
    private int columnIndex;
    private Font boldFont = null;
    private TableViewer viewer;

    public MatchesTableLabelProvider(int i, boolean parameter, TableViewer viewer) {
        this.columnIndex = i;
        this.viewer = viewer;
        if (parameter) {
            FontRegistry fregistry = JFaceResources.getFontRegistry();
            boldFont = fregistry.getBold(JFaceResources.DEFAULT_FONT);
        }
    }

    @Override
    public Font getFont(Object element) {
        if (boldFont != null) {
            return boldFont;
        }
        return super.getFont(element);
    }

    @Override
    public Color getBackground(final Object element) {

        MatchingFrame currentFrame = (MatchingFrame) element;

        @SuppressWarnings("unchecked")
        List<MatchingFrame> input = (List<MatchingFrame>) viewer.getInput();
        MatchingFrame lastFrame = input.get(input.size() - 1);
        if (currentFrame.equals(lastFrame)) {
            return new Color(Display.getDefault(), 0xFF, 0, 0);
        }
        return super.getBackground(element);
    }

    @Override
    public String getText(Object inputElement) {

        MatchingFrame frame = (MatchingFrame) inputElement;
        Object element = frame.get(columnIndex);

        if (element == null) {
            return "null";
        }
        if (element instanceof EObject) {
            EObject eObject = ((EObject) element);

            EStructuralFeature feature = eObject.eClass().getEStructuralFeature("name");
            if (feature != null) {
                if (!feature.isMany()) {
                    return eObject.eGet(feature).toString();
                }
            } else {
                feature = eObject.eClass().getEStructuralFeature(0);
                if (!feature.isMany()) {
                    return eObject.eGet(feature).toString();
                }
            }
        }
        return element.toString();
    }

}