/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.erlide.ui.editors.erl;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.nullValue;
import org.eclipse.core.resources.IResource;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Shell;
import org.erlide.engine.model.erlang.IErlModule;
import org.erlide.ui.internal.ErlideUIPlugin;
import org.erlide.ui.util.IProblemChangedListener;
/**
* The <code>ErlangEditorErrorTickUpdater</code> will register as a
* IProblemChangedListener to listen on problem changes of the editor's input.
* It updates the title images when the annotation model changed.
*/
public class ErlangEditorErrorTickUpdater implements IProblemChangedListener {
final ErlangEditor fErlangEditor;
private final ErlangFileLabelProvider fLabelProvider;
public ErlangEditorErrorTickUpdater(final ErlangEditor editor) {
assertThat(editor, is(not(nullValue())));
fErlangEditor = editor;
fLabelProvider = new ErlangFileLabelProvider();
ErlideUIPlugin.getDefault().getProblemMarkerManager().addListener(this);
}
@Override
public void problemsChanged(final IResource[] changedResources,
final boolean isMarkerChange) {
if (isMarkerChange) {
final IErlModule module = fErlangEditor.getModule();
if (module != null) {
final IResource resource = module.getResource();
for (int i = 0; i < changedResources.length; i++) {
if (changedResources[i].equals(resource)) {
updateEditorImage(module);
}
}
}
}
}
public void updateEditorImage(final IErlModule module) {
final Image titleImage = fErlangEditor.getTitleImage();
if (titleImage == null) {
return;
}
Image newImage;
// if (jelement instanceof ICompilationUnit
// && !jelement.getErlProject().isOnClasspath(jelement)) {
// newImage = fLabelProvider.getImage(jelement.getResource());
// } else {
newImage = fLabelProvider.getImage(module);
// }
if (titleImage != newImage) {
postImageChange(newImage);
}
}
private void postImageChange(final Image newImage) {
final Shell shell = fErlangEditor.getEditorSite().getShell();
if (shell != null && !shell.isDisposed()) {
shell.getDisplay().syncExec(new Runnable() {
@Override
public void run() {
fErlangEditor.updatedTitleImage(newImage);
}
});
}
}
public void dispose() {
fLabelProvider.dispose();
ErlideUIPlugin.getDefault().getProblemMarkerManager().removeListener(this);
}
}