net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/JavaEditorErrorTickUpdater.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpeclipse.phpeditor;
  12
  13 import net.sourceforge.phpdt.core.IJavaElement;
  14 import net.sourceforge.phpdt.internal.ui.viewsupport.IProblemChangedListener;
  15 import net.sourceforge.phpdt.internal.ui.viewsupport.JavaElementImageProvider;
  16 import net.sourceforge.phpdt.internal.ui.viewsupport.JavaUILabelProvider;
  17 import net.sourceforge.phpdt.ui.ProblemsLabelDecorator;
  18 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  19
  20 import org.eclipse.core.resources.IResource;
  21 import org.eclipse.jface.text.Assert;
  22 import org.eclipse.swt.graphics.Image;
  23 import org.eclipse.swt.widgets.Shell;
  24 import org.eclipse.ui.IEditorInput;
  25
  26 /**
  27  * The <code>JavaEditorErrorTickUpdater</code> will register as a
  28  * IProblemChangedListener to listen on problem changes of the editor's input.
  29  * It updates the title images when the annotation model changed.
  30  */
  31 public class JavaEditorErrorTickUpdater implements IProblemChangedListener {
  32
  33         private PHPEditor fJavaEditor;
  34
  35         private JavaUILabelProvider fLabelProvider;
  36
  37         public JavaEditorErrorTickUpdater(PHPEditor editor) {
  38                 Assert.isNotNull(editor);
  39                 fJavaEditor = editor;
  40                 fLabelProvider = new JavaUILabelProvider(0,
  41                                 JavaElementImageProvider.SMALL_ICONS);
  42                 fLabelProvider.addLabelDecorator(new ProblemsLabelDecorator(null));
  43                 PHPeclipsePlugin.getDefault().getProblemMarkerManager().addListener(
  44                                 this);
  45         }
  46
  47         /*
  48          * (non-Javadoc)
  49          *
  50          * @see IProblemChangedListener#problemsChanged(IResource[], boolean)
  51          */
  52         public void problemsChanged(IResource[] changedResources,
  53                         boolean isMarkerChange) {
  54                 if (isMarkerChange) {
  55                         return;
  56                 }
  57                 IEditorInput input = fJavaEditor.getEditorInput();
  58                 if (input != null) { // might run async, tests needed
  59                         IJavaElement jelement = (IJavaElement) input
  60                                         .getAdapter(IJavaElement.class);
  61                         if (jelement != null) {
  62                                 IResource resource = jelement.getResource();
  63                                 for (int i = 0; i < changedResources.length; i++) {
  64                                         if (changedResources[i].equals(resource)) {
  65                                                 updateEditorImage(jelement);
  66                                         }
  67                                 }
  68                         }
  69                 }
  70         }
  71
  72         public void updateEditorImage(IJavaElement jelement) {
  73                 Image titleImage = fJavaEditor.getTitleImage();
  74                 if (titleImage == null) {
  75                         return;
  76                 }
  77                 Image newImage = fLabelProvider.getImage(jelement);
  78                 if (titleImage != newImage) {
  79                         postImageChange(newImage);
  80                 }
  81         }
  82
  83         private void postImageChange(final Image newImage) {
  84                 Shell shell = fJavaEditor.getEditorSite().getShell();
  85                 if (shell != null && !shell.isDisposed()) {
  86                         shell.getDisplay().syncExec(new Runnable() {
  87                                 public void run() {
  88                                         fJavaEditor.updatedTitleImage(newImage);
  89                                 }
  90                         });
  91                 }
  92         }
  93
  94         public void dispose() {
  95                 fLabelProvider.dispose();
  96                 PHPeclipsePlugin.getDefault().getProblemMarkerManager().removeListener(
  97                                 this);
  98         }
  99
 100 }