org.caleydo.view.imageviewer.internal.ImageViewerViewPart.java Source code

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Here is the source code for org.caleydo.view.imageviewer.internal.ImageViewerViewPart.java

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/*******************************************************************************
 * Caleydo - Visualization for Molecular Biology - http://caleydo.org
 * Copyright (c) The Caleydo Team. All rights reserved.
 * Licensed under the new BSD license, available at http://caleydo.org/license
 ******************************************************************************/
package org.caleydo.view.imageviewer.internal;

import java.util.List;

import org.caleydo.core.data.datadomain.DataDomainManager;
import org.caleydo.core.data.datadomain.IDataDomain;
import org.caleydo.core.event.ADirectedEvent;
import org.caleydo.core.event.EventPublisher;
import org.caleydo.core.view.ARcpGLElementViewPart;
import org.caleydo.core.view.opengl.canvas.IGLCanvas;
import org.caleydo.core.view.opengl.layout2.AGLElementView;
import org.caleydo.datadomain.image.ImageDataDomain;
import org.caleydo.datadomain.image.LayeredImage;
import org.caleydo.view.imageviewer.internal.serial.SerializedImageViewerView;
import org.eclipse.jface.action.ControlContribution;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

/**
 *
 * @author Thomas Geymayer
 *
 */
public class ImageViewerViewPart extends ARcpGLElementViewPart {

    protected ImageSelector imageSelector;

    public ImageViewerViewPart() {
        super(SerializedImageViewerView.class);
    }

    @Override
    protected AGLElementView createView(IGLCanvas canvas) {
        return new ImageViewerView(glCanvas);
    }

    @Override
    public void addToolBarContent(IToolBarManager toolBarManager) {
        toolBarManager.add(imageSelector = new ImageSelector());
        toolBarManager.update(true);
    }

    // TODO update on view.init()
    // imageSelector.onImageChange();

    public static class SelectImageEvent extends ADirectedEvent {

        public LayeredImage image;

        public SelectImageEvent(LayeredImage img) {
            image = img;
        }

        @Override
        public boolean checkIntegrity() {
            return image != null;
        }

    }

    protected class ImageSelector extends ControlContribution {

        Combo domainCombo;
        Combo imageCombo;

        public ImageSelector() {
            super("ImageSelector");
        }

        public ImageDataDomain getSelectedDomain() {
            List<IDataDomain> domains = getDomains();
            int selectionIndex = domainCombo.getSelectionIndex();
            if (selectionIndex < 0 || selectionIndex >= domains.size())
                return null;
            return (ImageDataDomain) domains.get(selectionIndex);
        }

        public LayeredImage getSelectedImage() {
            ImageDataDomain dataDomain = getSelectedDomain();
            if (dataDomain == null)
                return null;
            return dataDomain.getImageSet().getImage(imageCombo.getText());
        }

        public void onDomainChange() {
            imageCombo.removeAll();
            imageCombo.setEnabled(true);

            ImageDataDomain imageSet = getSelectedDomain();
            if (imageSet == null)
                return;

            for (String name : imageSet.getImageSet().getImageNames())
                imageCombo.add(name);
            imageCombo.select(0);

            onImageChange();
        }

        public void onImageChange() {
            LayeredImage img = getSelectedImage();
            if (img == null)
                return;
            EventPublisher.trigger(new SelectImageEvent(img).to(((ImageViewerView) getView()).getImageViewer()));
        }

        @Override
        protected Control createControl(Composite parent) {

            final int comboStyle = SWT.NONE | SWT.READ_ONLY | SWT.DROP_DOWN;

            final Composite composite = new Composite(parent, SWT.NULL);
            RowLayout layout = new RowLayout();
            composite.setLayout(layout);

            domainCombo = new Combo(composite, comboStyle);
            imageCombo = new Combo(composite, comboStyle);

            domainCombo.addSelectionListener(new SelectionAdapter() {
                @Override
                public void widgetSelected(SelectionEvent e) {
                    onDomainChange();
                }
            });

            imageCombo.addSelectionListener(new SelectionAdapter() {
                @Override
                public void widgetSelected(SelectionEvent e) {
                    onImageChange();
                }
            });
            imageCombo.add("<no image>");
            imageCombo.select(0);
            imageCombo.setEnabled(false);

            for (IDataDomain dataDomain : getDomains())
                domainCombo.add(dataDomain.getLabel());
            domainCombo.select(0);

            onDomainChange();

            return composite;
        }

        protected List<IDataDomain> getDomains() {
            return DataDomainManager.get().getDataDomainsByType(ImageDataDomain.DATA_DOMAIN_TYPE);
        }
    }
}