ar.com.fluxit.jqa.viewer.LayersGraphLabelProvider.java Source code

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Here is the source code for ar.com.fluxit.jqa.viewer.LayersGraphLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2011 Flux IT.
 * 
 * This file is part of JQA (http://github.com/jbaris/jqa).
 * 
 * JQA 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 3 of 
 * the License, or (at your option) any later version.
 * 
 * JQA 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 JQA. If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package ar.com.fluxit.jqa.viewer;

import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.Label;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.zest.core.viewers.EntityConnectionData;
import org.eclipse.zest.core.viewers.IConnectionStyleProvider;
import org.eclipse.zest.core.viewers.IEntityStyleProvider;

import ar.com.fluxit.jqa.descriptor.LayerDescriptor;

/**
 * TODO javadoc
 * 
 * @author Juan Ignacio Barisich
 */
public class LayersGraphLabelProvider extends LabelProvider
        implements IConnectionStyleProvider, IEntityStyleProvider {

    private static final String USES = "uses";

    @Override
    public boolean fisheyeNode(Object entity) {
        return false;
    }

    @Override
    public Color getBackgroundColour(Object entity) {
        return null;
    }

    @Override
    public Color getBorderColor(Object entity) {
        return null;
    }

    @Override
    public Color getBorderHighlightColor(Object entity) {
        return null;
    }

    @Override
    public int getBorderWidth(Object entity) {
        return 0;
    }

    @Override
    public Color getColor(Object rel) {
        return null;
    }

    @Override
    public int getConnectionStyle(Object rel) {
        return SWT.NONE;
    }

    @Override
    public Color getForegroundColour(Object entity) {
        return null;
    }

    @Override
    public Color getHighlightColor(Object rel) {
        return null;
    }

    @Override
    public int getLineWidth(Object rel) {
        return 0;
    }

    @Override
    public Color getNodeHighlightColor(Object entity) {
        return null;
    }

    @Override
    public String getText(Object element) {
        if (element instanceof LayerDescriptor) {
            LayerDescriptor layer = (LayerDescriptor) element;
            return layer.getName();
        } else if (element instanceof EntityConnectionData) {
            return USES;
        }
        throw new IllegalArgumentException("Type not supported: " + element.getClass().getName());
    }

    @Override
    public IFigure getTooltip(Object element) {
        String msg;
        if (element instanceof LayerDescriptor) {
            msg = "Press Ctrl+Click to draw connections";
        } else if (element instanceof EntityConnectionData) {
            msg = "Click this connection to delete it";
        } else {
            throw new IllegalArgumentException("Type not supported: " + element.getClass().getName());
        }
        return new Label(msg);
    }

}