Bug 368222 - Preferences page uses wrong icons

codan/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/CodanUIActivator.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2010 Alena Laskavaia 
+ * Copyright (c) 2010, 2012 Alena Laskavaia 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
@@ -19,6 +19,10 @@ import org.eclipse.core.runtime.preferences.IScopeContext;
 import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.resource.ImageRegistry;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.ui.ISharedImages;
+import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 import org.eclipse.ui.preferences.ScopedPreferenceStore;
 import org.osgi.framework.BundleContext;
@@ -72,6 +76,26 @@ public class CodanUIActivator extends AbstractUIPlugin {
 		return imageDescriptorFromPlugin(PLUGIN_ID, path);
 	}
 	
+	/**
+	 * 
+	 * @param key - key is usually plug-in relative path to image like icons/xxx.gif
+	 * @return Image loaded from key location or from registry cache, it will be stored in plug-in registry and disposed when plug-in unloads
+	 */
+	public Image getImage(String key) {
+		ImageRegistry registry = getImageRegistry();
+		Image image = registry.get(key);
+		if (image == null) {
+			ImageDescriptor descriptor = imageDescriptorFromPlugin(PLUGIN_ID, key);
+			if (descriptor==null) {
+				ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
+				return sharedImages.getImage(key);
+			}
+			registry.put(key, descriptor);
+			image = registry.get(key);
+		}
+		return image;
+	}
+
 	/**
 	 * Logs the specified status with this plug-in's log.
 	 * 

codan/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/ImageConstants.java

@@ -0,0 +1,17 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Marc-Andre Laperle 
+ * 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:
+ *    Marc-Andre Laperle - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.codan.internal.ui;
+
+public interface ImageConstants {
+	String ICON_WARNING = "icons/yellow_bug.gif"; //$NON-NLS-1$
+	String ICON_ERROR = "icons/red_bug.gif"; //$NON-NLS-1$
+	String ICON_INFO = "icons/blue_bug.gif"; //$NON-NLS-1$
+}

codan/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/preferences/ProblemsTreeEditor.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2011 Alena Laskavaia and others.
+ * Copyright (c) 2009, 2012 Alena Laskavaia 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
@@ -8,9 +8,12 @@
  * Contributors:
  *     Alena Laskavaia  - initial API and implementation
  *     IBM Corporation
+ *     Marc-Andre Laperle
  *******************************************************************************/
 package org.eclipse.cdt.codan.internal.ui.preferences;
 
+import java.text.MessageFormat;
+
 import org.eclipse.cdt.codan.core.CodanRuntime;
 import org.eclipse.cdt.codan.core.PreferenceConstants;
 import org.eclipse.cdt.codan.core.model.CodanSeverity;
@@ -23,7 +26,9 @@ import org.eclipse.cdt.codan.core.param.IProblemPreference;
 import org.eclipse.cdt.codan.core.param.LaunchModeProblemPreference;
 import org.eclipse.cdt.codan.core.param.RootProblemPreference;
 import org.eclipse.cdt.codan.internal.core.CodanPreferencesLoader;
+import org.eclipse.cdt.codan.internal.ui.CodanUIActivator;
 import org.eclipse.cdt.codan.internal.ui.CodanUIMessages;
+import org.eclipse.cdt.codan.internal.ui.ImageConstants;
 import org.eclipse.core.resources.IMarker;
 import org.eclipse.jface.viewers.CellEditor;
 import org.eclipse.jface.viewers.CheckStateChangedEvent;
@@ -40,10 +45,6 @@ import org.eclipse.jface.window.ToolTip;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Composite;
-import org.eclipse.ui.ISharedImages;
-import org.eclipse.ui.PlatformUI;
-
-import java.text.MessageFormat;
 
 public class ProblemsTreeEditor extends CheckedTreeEditor {
 	private static final String EMPTY_STRING = ""; //$NON-NLS-1$
@@ -261,16 +262,15 @@ public class ProblemsTreeEditor extends CheckedTreeEditor {
 		column2.setLabelProvider(new ColumnLabelProvider() {
 			@Override
 			public Image getImage(Object element) {
-				final ISharedImages images = PlatformUI.getWorkbench().getSharedImages();
 				if (element instanceof IProblem) {
 					IProblem p = (IProblem) element;
 					switch (p.getSeverity().intValue()) {
 						case IMarker.SEVERITY_INFO:
-							return images.getImage(ISharedImages.IMG_OBJS_INFO_TSK);
+							return CodanUIActivator.getDefault().getImage(ImageConstants.ICON_INFO);
 						case IMarker.SEVERITY_WARNING:
-							return images.getImage(ISharedImages.IMG_OBJS_WARN_TSK);
+							return CodanUIActivator.getDefault().getImage(ImageConstants.ICON_WARNING);
 						case IMarker.SEVERITY_ERROR:
-							return images.getImage(ISharedImages.IMG_OBJS_ERROR_TSK);
+							return CodanUIActivator.getDefault().getImage(ImageConstants.ICON_ERROR);
 					}
 				}
 				return null;