org.eclipse.scada.da.server.ui.internal.ServerLabelProvider.java Source code

Introduction

Here is the source code for org.eclipse.scada.da.server.ui.internal.ServerLabelProvider.java

Source

/*******************************************************************************
 * Copyright (c) 2013 IBH SYSTEMS GmbH and others.
 * 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:
 *     IBH SYSTEMS GmbH - initial API and implementation
 *******************************************************************************/
package org.eclipse.scada.da.server.ui.internal;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.scada.da.server.ui.HivesPlugin;
import org.eclipse.scada.da.server.ui.ImageConstants;
import org.eclipse.scada.da.server.ui.ServerDescriptor;
import org.eclipse.scada.da.server.ui.ServerEndpoint;
import org.eclipse.scada.ui.databinding.ObservableMapStyledCellLabelProvider;
import org.eclipse.scada.utils.ExceptionHelper;
import org.eclipse.swt.graphics.Image;

public class ServerLabelProvider extends ObservableMapStyledCellLabelProvider {

    private final Image errorImage;

    private final Image runningImage;

    private final Image stoppedImage;

    public ServerLabelProvider(final IObservableSet knownElements) {
        super(new IObservableMap[] { //
                BeanProperties.value("running").observeDetail(knownElements), //
                BeanProperties.value("error").observeDetail(knownElements) //
        });
        this.errorImage = HivesPlugin.getDefault().getImageRegistry().get(ImageConstants.IMG_ERROR);
        this.runningImage = HivesPlugin.getDefault().getImageRegistry().get(ImageConstants.IMG_RUNNING);
        this.stoppedImage = HivesPlugin.getDefault().getImageRegistry().get(ImageConstants.IMG_STOPPED);
    }

    @Override
    public void update(final ViewerCell cell) {
        final Object ele = cell.getElement();
        if (ele instanceof ServerDescriptor) {
            update(cell, (ServerDescriptor) ele);
        } else if (ele instanceof ServerEndpoint) {
            update(cell, (ServerEndpoint) ele);
        }
    }

    protected void update(final ViewerCell cell, final ServerDescriptor element) {
        final StyledString str = new StyledString();

        final boolean running = element.isRunning();

        str.append(element.getLabel());

        final String add = element.getAdditionalLabel();
        if (add != null) {
            str.append(' ');
            str.append(add, StyledString.QUALIFIER_STYLER);
        }

        cell.setText(str.getString());
        cell.setStyleRanges(str.getStyleRanges());

        if (element.getError() != null) {
            cell.setImage(this.errorImage);
        } else {
            cell.setImage(running ? this.runningImage : this.stoppedImage);
        }
    }

    protected void update(final ViewerCell cell, final ServerEndpoint element) {
        final StyledString str = new StyledString();

        final boolean running = element.isRunning();

        str.append(element.getLabel());

        cell.setText(str.getString());
        cell.setStyleRanges(str.getStyleRanges());

        if (element.getError() != null) {
            cell.setImage(this.errorImage);
        } else {
            cell.setImage(running ? this.runningImage : this.stoppedImage);
        }
    }

    @Override
    public String getToolTipText(final Object element) {
        if (element instanceof ServerDescriptor) {
            return ExceptionHelper.formatted(((ServerDescriptor) element).getError());
        } else if (element instanceof ServerEndpoint) {
            return ExceptionHelper.formatted(((ServerEndpoint) element).getError());
        }
        return super.getToolTipText(element);
    }

    @Override
    public Image getToolTipImage(final Object element) {
        if (element instanceof ServerDescriptor) {
            return ((ServerDescriptor) element).getError() == null ? null : this.errorImage;
        } else if (element instanceof ServerEndpoint) {
            return ((ServerEndpoint) element).getError() == null ? null : this.errorImage;
        }
        return super.getToolTipImage(element);
    }

}