Revision 59351073
Added by Niels Hoffmann almost 13 years ago
| eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/forms/ImageElement.java | ||
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package eu.etaxonomy.taxeditor.ui.forms; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.net.URI; |
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import org.apache.http.HttpException; |
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import org.eclipse.core.runtime.IProgressMonitor; |
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import org.eclipse.core.runtime.IStatus; |
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import org.eclipse.core.runtime.Status; |
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import org.eclipse.core.runtime.jobs.Job; |
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import org.eclipse.jface.operation.IRunnableWithProgress; |
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import org.eclipse.swt.SWT; |
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import org.eclipse.swt.events.PaintEvent; |
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import org.eclipse.swt.events.PaintListener; |
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import org.eclipse.swt.graphics.GC; |
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import org.eclipse.swt.widgets.Composite; |
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import org.eclipse.swt.widgets.Display; |
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import org.eclipse.swt.widgets.Event; |
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import org.eclipse.swt.widgets.Label; |
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import org.eclipse.ui.forms.widgets.TableWrapData; |
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import eu.etaxonomy.cdm.common.UriUtils; |
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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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setImageUri(imageUri); |
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loadImage(); |
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container = new Composite(getLayoutComposite(), style); |
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container.setLayoutData(CdmFormFactory.FILL(2, 1)); |
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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 setImageUri(URI uri) {
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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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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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} |
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} |
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public IRunnableWithProgress getLoadImageRunnable(final Runnable postRunnable){
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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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try {
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runnable.run(monitor); |
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} catch (Exception e) {
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StoreUtil.errorDialog("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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IRunnableWithProgress runnable = new IRunnableWithProgress(){
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@Override |
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public void run(IProgressMonitor monitor) {
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try {
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monitor.beginTask("Loading: " + getImageUri(), IProgressMonitor.UNKNOWN);
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InputStream imageStream = UriUtils.getInputStream(imageUri); |
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image = new Image(Display.getCurrent(), imageStream); |
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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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public void run() {
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if(! getLayoutComposite().isDisposed()){
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Event untypedEvent = new Event(); |
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untypedEvent.widget = container; |
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PaintEvent event = new PaintEvent(untypedEvent); |
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event.gc = new GC(container); |
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paintControl(event); |
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getLayoutComposite().layout(); |
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} |
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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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public void run() {
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if(! getLayoutComposite().isDisposed()){
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Event untypedEvent = new Event(); |
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untypedEvent.widget = container; |
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PaintEvent event = new PaintEvent(untypedEvent); |
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event.gc = new GC(container); |
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paintControl(event); |
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getLayoutComposite().layout(); |
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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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}catch (Exception e) {
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StoreUtil.warn(getClass(), e.getMessage()); |
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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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} |
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}; |
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return runnable; |
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} |
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private void calculateImageBounds(){
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Rectangle imageBounds = image.getBounds(); |
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Rectangle containerBounds = container.getBounds(); |
| ... | ... | |
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/** {@inheritDoc} */
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@Override |
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public void paintControl(PaintEvent e) {
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TableWrapData layoutData = CdmFormFactory.FILL(2, 1); |
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Composite composite = (Composite) e.widget; |
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if(image != null){
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calculateImageBounds(); |
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Composite composite = (Composite) e.widget; |
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TableWrapData layoutData = CdmFormFactory.FILL(2, 1); |
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layoutData.heightHint = imageMaxBounds.height; |
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composite.setLayoutData(layoutData); |
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e.gc.drawImage(image, 0, 0, image.getBounds().width, image.getBounds().height, 0, 0, imageMaxBounds.width, imageMaxBounds.height); |
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e.gc.dispose(); |
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} |
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}else{
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layoutData.heightHint = 10; |
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e.gc.drawRectangle(0, 0, 0, 10); |
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} |
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composite.setLayoutData(layoutData); |
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e.gc.dispose(); |
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} |
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} |
Also available in: Unified diff
Improved image handling (fixes #2351); Passwords can now be changed by "admin" user (CAUTION: this is done by checking if the currently logged in user is the user named "admin", this has to change once rights are implemented correctly)