1 files changed, 107 insertions, 0 deletions

diff --git a/plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/decorators/ReadOnly.java b/plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/decorators/ReadOnly.java
new file mode 100644
index 0000000..0bb3c20
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+++ b/plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/decorators/ReadOnly.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 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.yocto.bc.ui.decorators;
+
+import java.net.URL;
+
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ResourceAttributes;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.IDecoration;
+import org.eclipse.jface.viewers.ILabelProviderListener;
+import org.eclipse.jface.viewers.ILightweightLabelDecorator;
+
+/**
+ * An example showing how to control when an element is decorated. This example
+ * decorates only elements that are instances of IResource and whose attribute
+ * is 'Read-only'.
+ * 
+ * @see ILightweightLabelDecorator
+ */
+public class ReadOnly implements ILightweightLabelDecorator {
+        /**
+         * String constants for the various icon placement options from the template
+         * wizard.
+         */
+        public static final String TOP_RIGHT = "TOP_RIGHT";
+
+        public static final String TOP_LEFT = "TOP_LEFT";
+
+        public static final String BOTTOM_RIGHT = "BOTTOM_RIGHT";
+
+        public static final String BOTTOM_LEFT = "BOTTOM_LEFT";
+
+        public static final String UNDERLAY = "UNDERLAY";
+
+        /** The integer value representing the placement options */
+        private int quadrant;
+
+        /** The icon image location in the project folder */
+        private String iconPath = "icons/read_only.gif"; //NON-NLS-1
+
+        /**
+         * The image description used in
+         * <code>addOverlay(ImageDescriptor, int)</code>
+         */
+        private ImageDescriptor descriptor;
+
+        /* (non-Javadoc)
+         * @see org.eclipse.jface.viewers.ILightweightLabelDecorator#decorate(java.lang.Object, org.eclipse.jface.viewers.IDecoration)
+         */
+        public void decorate(Object element, IDecoration decoration) {
+                /**
+                 * Checks that the element is an IResource with the 'Read-only' attribute
+                 * and adds the decorator based on the specified image description and the
+                 * integer representation of the placement option.
+                 */
+                IResource resource = (IResource) element;
+                ResourceAttributes attrs = resource.getResourceAttributes();
+                if(attrs!=null) {
+                        if (attrs.isReadOnly()){
+                                URL url = Platform.find(
+                                                Platform.getBundle("org.yocto.bc.ui"), new Path(iconPath)); //NON-NLS-1
+        
+                                if (url == null)
+                                        return;
+                                descriptor = ImageDescriptor.createFromURL(url);                        
+                                quadrant = IDecoration.TOP_RIGHT;
+                                decoration.addOverlay(descriptor,quadrant);
+                        }
+                }
+        }
+
+        /* (non-Javadoc)
+         * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
+         */
+        public void addListener(ILabelProviderListener listener) {
+        }
+
+        /* (non-Javadoc)
+         * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
+         */
+        public void dispose() {
+        }
+
+        /* (non-Javadoc)
+         * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
+         */
+        public boolean isLabelProperty(Object element, String property) {
+                return false;
+        }
+
+        /* (non-Javadoc)
+         * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
+         */
+        public void removeListener(ILabelProviderListener listener) {
+        }
+}
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