org.eclipse.linuxtools.dataviewers.abstractviewers.STOwnerDrawLabelProvider.java Source code

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Here is the source code for org.eclipse.linuxtools.dataviewers.abstractviewers.STOwnerDrawLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2009 STMicroelectronics.
 * 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:
 *    Marzia Maugeri <marzia.maugeri@st.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.linuxtools.dataviewers.abstractviewers;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.OwnerDrawLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.linuxtools.dataviewers.STDataViewersActivator;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Item;

public class STOwnerDrawLabelProvider extends OwnerDrawLabelProvider {

    private final ISTDataViewersField fields;

    public STOwnerDrawLabelProvider(final Item column) {
        Object data = column.getData();

        if (data instanceof ISTDataViewersField) {
            fields = (ISTDataViewersField) data;
        } else {
            STDataViewersActivator.getDefault().getLog().log(new Status(IStatus.ERROR,
                    STDataViewersActivator.PLUGIN_ID, "No ISTDataField associated to Column!"));
            fields = null;
        }
    }

    public String getText(Object element) {
        return fields.getValue(element);
    }

    public Color getBackground(Object element) {
        return fields.getBackground(element);
    }

    public Color getForeground(Object element) {
        return fields.getForeground(element);
    }

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

    public String getToolTipText(Object element) {
        return fields.getToolTipText(element);
    }

    public boolean useNativeToolTip(Object object) {
        return true;
    }

    protected void measure(Event event, Object element) {

    }

    protected void paint(Event event, Object element) {
        if (fields.getSpecialDrawer(element) != null) {
            fields.getSpecialDrawer(element).handleEvent(event);
        }
    }

    public void update(ViewerCell cell) {
        if (fields.getSpecialDrawer(cell.getElement()) == null) {
            Object element = cell.getElement();
            cell.setText(getText(element));
            cell.setImage(getImage(element));
            cell.setForeground(getForeground(element));
            cell.setBackground(getBackground(element));
        }
    }

    protected void erase(Event event, Object element) {
    }

}