EDIT

/**

* Copyright (C) 2019 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.view.search.facet.term;

import java.io.InputStream;

import java.net.URI;

import java.util.Collection;

import java.util.HashSet;

import java.util.UUID;

import java.util.stream.Collectors;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Status;

import org.eclipse.core.runtime.jobs.Job;

import org.eclipse.jface.layout.GridDataFactory;

import org.eclipse.jface.resource.JFaceResources;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.ControlAdapter;

import org.eclipse.swt.events.ControlEvent;

import org.eclipse.swt.events.PaintEvent;

import org.eclipse.swt.events.PaintListener;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.layout.FillLayout;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Label;

import eu.etaxonomy.cdm.api.service.IMediaService;

import eu.etaxonomy.cdm.common.CdmUtils;

import eu.etaxonomy.cdm.common.UriUtils;

import eu.etaxonomy.cdm.model.media.Media;

import eu.etaxonomy.cdm.model.media.MediaUtils;

import eu.etaxonomy.cdm.persistence.dto.AbstractTermDto;

import eu.etaxonomy.cdm.persistence.dto.TermDto;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.view.search.facet.CheckBoxSearchResultComposite;

/**

 * @author pplitzner

 * @since Jan 23, 2019

 *

 */

public class TermSearchResultComposite extends CheckBoxSearchResultComposite<AbstractTermDto, TermSearchResult> {

    private Collection<Image> imageBuffer;

    public TermSearchResultComposite(TermSearchResult result, Composite parent, int style) {

        super(result, parent, style);

    }

    @Override

    public void dispose() {

        for (Image image : imageBuffer) {

            image.dispose();

            imageBuffer = null;

        }

        super.dispose();

    }

    @Override

    public Composite createContent(Composite parent) {

        Composite content = new Composite(this, SWT.NONE);

        content.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));

        GridLayout layout = new GridLayout(1, false);

        content.setLayout(layout);

        Label label = new Label(content, SWT.WRAP);

        label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));

        label.setText(result.getContent().getRepresentation_L10n());

        label.setFont(JFaceResources.getFontRegistry().getBold(JFaceResources.DEFAULT_FONT));

        GridDataFactory.fillDefaults().applyTo(label);

        // label

        String facetText = result.getFacets().stream()

                .map(facet -> (facet.getFacet() != null ? facet.getFacet() : "")

                        + (facet.getCategory() != null ? " (" + facet.getCategory() + ")" : ""))

                .collect(Collectors.joining(","));

        if (CdmUtils.isNotBlank(facetText)) {

            Label labelFacets = new Label(content, SWT.WRAP);

            labelFacets.setText(facetText);

            labelFacets.setFont(JFaceResources.getFontRegistry().getItalic(JFaceResources.DEFAULT_FONT));

        }

        // description

        String representation_L10n_text = result.getContent().getRepresentation_L10n_text();

        if(representation_L10n_text!=null){

            Label lblDescription = new Label(content, SWT.WRAP);

            GridData layoutData = new GridData();

            lblDescription.setLayoutData(layoutData);

            parent.addControlListener(new ControlAdapter() {

                @Override

                public void controlResized(ControlEvent e) {

                    layoutData.widthHint = parent.getClientArea().width - (6*layout.marginWidth);

                    parent.layout(true);

                }

            });

            lblDescription.setText(representation_L10n_text);

        }

        // media

        if (result.getContent() instanceof TermDto){

            Collection<UUID> mediaUuids = ((TermDto)result.getContent()).getMedia();

            if(mediaUuids!=null){

                if(imageBuffer==null){

                    imageBuffer = new HashSet<>();

                }

                new Job("Load term media") {

                    @Override

                    protected IStatus run(IProgressMonitor monitor) {

                        Collection<URI> mediaUris = new HashSet<>();

                        for (UUID uuid : mediaUuids) {

                            Media media = CdmStore.getService(IMediaService.class).load(uuid);

                            if(media==null){

                                continue;

                            }

                            URI uri = MediaUtils.getFirstMediaRepresentationPart(media).getUri();

                            mediaUris.add(uri);

                        }

                        TermSearchResultComposite.this.getDisplay().asyncExec(()->

                        {

                            for (URI uri : mediaUris) {

                                try {

                                    InputStream imageStream = UriUtils.getInputStream(uri);

                                    imageBuffer.add(new Image(Display.getCurrent(), imageStream));

                                } catch (Exception e1) {

                                    // ignore

                                }

                            }

                            Composite mediaContainer = new Composite(content, SWT.NONE);

                            mediaContainer.setLayout(new FillLayout());

                            for (Image image : imageBuffer) {

                                Composite composite = new Composite(mediaContainer, SWT.NONE);

                                composite.addPaintListener(new PaintListener() {

                                    @Override

                                    public void paintControl(PaintEvent e) {

                                        if(image!=null){

                                            e.gc.setAntialias(SWT.ON);

                                            e.gc.setInterpolation(SWT.HIGH);

                                            e.gc.drawImage(image, 0, 0,image.getBounds().width, image.getBounds().height,0, 0, 40, 40);

                                            e.gc.dispose();

                                        }

                                    }

                                });

                            }

                            TermSearchResultComposite.this.getParent().layout();

                        });

                        return Status.OK_STATUS;

                    }

                }.schedule();

            }

        }

        return content;

    }

}