org.bonitasoft.studio.common.refactoring.DiffTreeLabelProvider.java Source code

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Here is the source code for org.bonitasoft.studio.common.refactoring.DiffTreeLabelProvider.java

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/**
 * Copyright (C) 2013 BonitaSoft S.A.
 * BonitaSoft, 32 rue Gustave Eiffel - 38000 Grenoble
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2.0 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.bonitasoft.studio.common.refactoring;

import org.bonitasoft.studio.common.jface.BonitaStudioFontRegistry;
import org.eclipse.compare.structuremergeviewer.DiffNode;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.jface.viewers.StyledString.Styler;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.TextStyle;
import org.eclipse.swt.widgets.Display;

/**
 * @author aurelie
 *
 */

public class DiffTreeLabelProvider extends StyledCellLabelProvider implements ILabelProvider {

    private static Styler boldgreen = new StyledString.Styler() {

        @Override
        public void applyStyles(TextStyle textStyle) {
            textStyle.font = BonitaStudioFontRegistry.getActiveFont();
        }
    };

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {
        if (element instanceof DiffNode) {
            DiffNode node = ((DiffNode) element);
            if (node.getLeft() != null) {
                return node.getImage();
            } else {
                return node.getAncestor().getImage();
            }
        }
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
     */
    @Override
    public String getText(Object element) {
        if (element instanceof DiffNode) {
            DiffNode node = ((DiffNode) element);
            if (node.getLeft() != null) {
                return node.getName();
            } else {
                return node.getAncestor().getName();
            }
        }
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
     */
    @Override
    public void addListener(ILabelProviderListener listener) {

    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
     */
    @Override
    public void dispose() {

    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
     */
    @Override
    public boolean isLabelProperty(Object element, String property) {

        return false;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
     */
    @Override
    public void removeListener(ILabelProviderListener listener) {

    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse.jface.viewers.ViewerCell)
     */
    @Override
    public void update(ViewerCell cell) {
        StyledString styledString = new StyledString();

        DiffNode node = (DiffNode) cell.getElement();
        if (node.getLeft() != null) {
            styledString.append(getText(cell.getElement()), boldgreen);
        } else {
            styledString.append(getText(cell.getElement()));
        }
        cell.setText(styledString.getString());
        cell.setImage(getImage(cell.getElement()));
        cell.setStyleRanges(styledString.getStyleRanges());

    }

}