diva.editor.DiVALabelProvider.java Source code

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Here is the source code for diva.editor.DiVALabelProvider.java

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/**
 * Copyright 2014 SINTEF <brice.morin@sintef.no>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package diva.editor;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.edit.provider.INotifyChangedListener;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.jface.viewers.IFontProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ITableColorProvider;
import org.eclipse.jface.viewers.ITableFontProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;

import diva.visitors.Visitable;

public class DiVALabelProvider extends ColumnLabelProvider implements ILabelProvider, ITableLabelProvider,
        INotifyChangedListener, IColorProvider, ITableColorProvider, IFontProvider, ITableFontProvider {

    protected AdapterFactoryLabelProvider adapterFactoryLabelProvider = null;

    public DiVALabelProvider(AdapterFactoryLabelProvider adapterFactoryLabelProvider) {
        this.adapterFactoryLabelProvider = adapterFactoryLabelProvider;
    }

    public Font getFont(Object element) {
        return getFont(element, 0);
    }

    public Color getBackground(Object element) {
        return getBackground(element, 0);
    }

    public Color getForeground(Object element) {
        return getForeground(element, 0);
    }

    public Font getFont(Object element, int columnIndex) {
        return null;
    }

    public Color getBackground(Object element, int columnIndex) {
        if (element instanceof Visitable)
            return ((Visitable) element).accept(DiVABackgroundProvider.getInstance(), null);
        else
            return null;
    }

    public Color getForeground(Object element, int columnIndex) {
        return null;
    }

    public Image getImage(Object element) {
        return adapterFactoryLabelProvider.getImage(element);
    }

    public String getText(Object element) {
        if (element instanceof Visitable) {
            try {
                return ((Visitable) element).accept(DiVATextProvider.getInstance(), null);
            } catch (Exception e) {
                // null pointer might occur if the mandatory properties of the
                // object
                // are not populated. In this case use the default label.
                return adapterFactoryLabelProvider.getText(element);
            }
        }
        return adapterFactoryLabelProvider.getText(element);
    }

    public void notifyChanged(Notification notification) {
        adapterFactoryLabelProvider.notifyChanged(notification);

    }

    public Image getColumnImage(Object element, int columnIndex) {
        return adapterFactoryLabelProvider.getColumnImage(element, columnIndex);
    }

    public String getColumnText(Object element, int columnIndex) {
        return adapterFactoryLabelProvider.getColumnText(element, columnIndex);
    }

    public void addListener(ILabelProviderListener listener) {
        adapterFactoryLabelProvider.addListener(listener);

    }

    public void dispose() {
        adapterFactoryLabelProvider.dispose();
    }

    public boolean isLabelProperty(Object element, String property) {
        return adapterFactoryLabelProvider.isLabelProperty(element, property);
    }

    public void removeListener(ILabelProviderListener listener) {
        adapterFactoryLabelProvider.removeListener(listener);
    }

}