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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.ui.section.media;
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import java.io.IOException;
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import java.net.URI;
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import org.apache.commons.io.FileUtils;
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import org.apache.commons.lang.StringUtils;
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import org.apache.http.HttpException;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.ui.editors.text.EditorsUI;
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import eu.etaxonomy.cdm.common.media.ImageInfo;
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import eu.etaxonomy.cdm.model.media.ImageFile;
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import eu.etaxonomy.taxeditor.store.StoreUtil;
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import eu.etaxonomy.taxeditor.ui.forms.AbstractFormSection;
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import eu.etaxonomy.taxeditor.ui.forms.CdmFormFactory;
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import eu.etaxonomy.taxeditor.ui.forms.CdmPropertyChangeEvent;
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import eu.etaxonomy.taxeditor.ui.forms.ICdmFormElement;
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import eu.etaxonomy.taxeditor.ui.forms.ImageElement;
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import eu.etaxonomy.taxeditor.ui.forms.KeyValueViewerElement;
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import eu.etaxonomy.taxeditor.ui.forms.NumberWithLabelElement;
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/**
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* <p>ImageFileElement class.</p>
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*
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* @author n.hoffmann
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* @created Mar 26, 2010
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* @version 1.0
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*/
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public class ImageFileElement extends MediaRepresentationPartElement<ImageFile> {
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private NumberWithLabelElement text_height;
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private NumberWithLabelElement text_width;
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private KeyValueViewerElement element_keyValue;
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private ImageElement element_image;
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private Runnable postRunnable = new Runnable(){
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public void run() {
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StoreUtil.reflowDetailsViewer();
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StoreUtil.reflowSupplementalViewer();
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}
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};
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/**
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* <p>Constructor for ImageFileElement.</p>
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*
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* @param cdmFormFactory a {@link eu.etaxonomy.taxeditor.ui.forms.CdmFormFactory} object.
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* @param section a {@link eu.etaxonomy.taxeditor.ui.forms.AbstractFormSection} object.
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* @param element a {@link eu.etaxonomy.cdm.model.media.ImageFile} object.
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* @param removeListener a {@link org.eclipse.swt.events.SelectionListener} object.
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* @param style a int.
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*/
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public ImageFileElement(CdmFormFactory cdmFormFactory,
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AbstractFormSection section, ImageFile element,
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SelectionListener removeListener, int style) {
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super(cdmFormFactory, section, element, removeListener, style);
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}
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/** {@inheritDoc} */
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@Override
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public void createControls(ICdmFormElement formElement, int style) {
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super.createControls(formElement, style);
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text_height = formFactory.createIntegerTextWithLabelElement(formElement, "Height", null, style);
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text_height.setEnabled(false);
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text_width = formFactory.createIntegerTextWithLabelElement(formElement, "Width", null, style);
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text_width.setEnabled(false);
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element_image = formFactory.createImageElement(formElement, null, style);
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element_keyValue = formFactory.createKeyValueViewerElement(formElement, "Key", "Value", null);
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}
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/** {@inheritDoc} */
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@Override
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public void setEntity(ImageFile entity) {
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super.setEntity(entity);
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text_height.setInteger(entity.getHeight());
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text_width.setInteger(entity.getWidth());
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try {
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showImage(entity.getUri());
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} catch (Exception e) {
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handleException(e);
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}
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}
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private void showImage(URI uri) throws IOException, HttpException{
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element_image.initImageUri(uri);
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element_image.loadImage(postRunnable );
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if(uri == null){
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return;
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}
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ImageInfo imageInfo = ImageInfo.NewInstanceWithMetaData(uri, 10000);
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text_size.setText(FileUtils.byteCountToDisplaySize(imageInfo.getLength()));
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// KLUDGE this is not save for very large files, because of the int cast. But then, I don't think we will handle such large files in the near future
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getEntity().setSize((int) imageInfo.getLength());
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text_height.setInteger(imageInfo.getHeight());
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getEntity().setHeight(imageInfo.getHeight());
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text_width.setInteger(imageInfo.getWidth());
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getEntity().setWidth(imageInfo.getWidth());
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element_keyValue.setInput(imageInfo.getMetaData());
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element_messages.setText("");
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}
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/*
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* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.section.AbstractEntityCollectionElement#handleEvent(java.lang.Object)
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*/
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/** {@inheritDoc} */
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@Override
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public void handleEvent(Object eventSource) {
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if(eventSource == text_uri){
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try {
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String uriString = text_uri.getText();
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URI uri = StringUtils.isNotEmpty(uriString) ? new URI(uriString) : null;
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getEntity().setUri(uri);
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showImage(getEntity().getUri());
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firePropertyChangeEvent(new CdmPropertyChangeEvent(this, null));
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} catch (Exception e) {
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handleException(e);
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} finally {
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firePropertyChangeEvent(this);
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}
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}
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}
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protected void handleException(Exception e) {
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super.handleException(e);
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element_image.unloadImage(postRunnable);
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text_height.setInteger(0);
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text_width.setInteger(0);
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element_image.loadImage(new Runnable(){
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public void run() {
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StoreUtil.reflowDetailsViewer();
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StoreUtil.reflowSupplementalViewer();
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}
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});
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}
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}
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