Revision 96755ebc
Added by Patrick Plitzner over 8 years ago
| eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/element/ImageElement.java | ||
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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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* European Distributed Institute of Taxonomy |
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* http://www.e-taxonomy.eu |
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*
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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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import eu.etaxonomy.taxeditor.model.MessagingUtils; |
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/** |
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* <p>ImageElement class.</p> |
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* |
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* @author n.hoffmann |
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* @created Sep 24, 2010 |
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* @version 1.0 |
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private URI imageUri; |
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private Image image; |
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private Composite container; |
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/** |
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* <p>Constructor for ImageElement.</p> |
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* |
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* @param formFactory a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory} object.
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* @param parentElement a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement} object.
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* @param imageUri a {@link java.net.URI} object.
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* @param style a int. |
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*/ |
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protected ImageElement(CdmFormFactory formFactory, ICdmFormElement parentElement, URI imageUri, int style) {
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super(formFactory, parentElement); |
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container = new Composite(getLayoutComposite(), style); |
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container.setLayoutData(LayoutConstants.FILL(2, 1)); |
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container.addPaintListener(this); |
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} |
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/** |
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* <p>Setter for the field <code>imageUri</code>.</p> |
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* |
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* @param uri a {@link java.net.URI} object.
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* @throws HttpException |
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* @throws IOException |
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*/ |
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public void initImageUri(URI uri) throws IOException, HttpException {
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this.imageUri = uri; |
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InputStream imageStream = UriUtils.getInputStream(imageUri); |
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image = new Image(Display.getCurrent(), imageStream); |
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} |
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/** |
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* <p>Getter for the field <code>imageUri</code>.</p> |
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* |
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* @return the imageUri |
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*/ |
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public URI getImageUri() {
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return imageUri; |
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} |
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public void loadImage(){
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loadImage(null); |
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} |
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public void loadImage(final Runnable postRunnable){
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if(getImageUri() != null){
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Job job = new Job("Loading image") {
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@Override |
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protected IStatus run(IProgressMonitor monitor) {
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IRunnableWithProgress runnable = getLoadImageRunnable(postRunnable); |
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} catch (Exception e) {
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MessagingUtils.messageDialog("Could not load image", getClass(), e.getMessage() + ": " + getImageUri(), e);
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} |
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return Status.OK_STATUS; |
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} |
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}; |
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job.schedule(); |
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} |
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} |
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public void unloadImage(final Runnable postRunnable) {
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Job job = new Job("Unloading image") {
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@Override |
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protected IStatus run(IProgressMonitor monitor) {
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IRunnableWithProgress runnable = getLoadImageRunnable(postRunnable); |
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} catch (Exception e) {
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MessagingUtils.messageDialog("Could not unload image", getClass(), e.getMessage() + ": " + getImageUri(), e);
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} |
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return Status.OK_STATUS; |
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} |
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}; |
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job.schedule(); |
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} |
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public IRunnableWithProgress getLoadImageRunnable(final Runnable postRunnable){
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final Display display = getLayoutComposite().getDisplay();
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final Display display = getLayoutComposite().getDisplay(); |
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IRunnableWithProgress runnable = new IRunnableWithProgress(){
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@Override |
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public void run(IProgressMonitor monitor) {
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monitor.beginTask("Loading: " + getImageUri(), IProgressMonitor.UNKNOWN);
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// redraw the image container |
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display.asyncExec(new Runnable(){
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@Override |
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} |
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} |
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}); |
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// execute the external runnable |
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if(postRunnable != null){
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display.asyncExec(postRunnable); |
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} |
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monitor.done();
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monitor.done(); |
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} |
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}; |
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return runnable; |
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} |
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private Rectangle calculateImageBounds(Image image, Control control){
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Rectangle imageBounds = image.getBounds(); |
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Rectangle containerBounds = control.getBounds(); |
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Integer imgWidth = imageBounds.width; |
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Integer imgHeight = imageBounds.height; |
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Float ratio = imgHeight.floatValue()/imgWidth.floatValue(); |
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Integer width = containerBounds.width; |
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Integer height = ((Float) (width * ratio)).intValue(); |
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return new Rectangle(containerBounds.x, containerBounds.y, width, height); |
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} |
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/* (non-Javadoc) |
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* @see org.eclipse.swt.events.PaintListener#paintControl(org.eclipse.swt.events.PaintEvent) |
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*/ |
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/** {@inheritDoc} */
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@Override |
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public void paintControl(PaintEvent e) {
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