Changes between Version 2 and Version 3 of CustomizeProperties

Timestamp:

Mar 14, 2008, 1:53:17 PM (17 years ago)

Author:

jdamerow

Comment:

--

CustomizeProperties

@@ -84 +84 @@
 }
 }}}
+
+  * Write a new ItemPropertyDescriptor for B:
+{{{
+
+public class ImagePropertyDescriptor extends ItemPropertyDescriptor {
+        
+        EStructuralFeature feature;
+        
+        public ImagePropertyDescriptor(AdapterFactory adapterFactory,
+                        ResourceLocator resourceLocator, String displayName,
+                        String description, EStructuralFeature feature, boolean isSettable,
+                        boolean multiLine, boolean sortChoices, Object staticImage,
+                        String category, String[] filterFlags) {
+                super(adapterFactory, resourceLocator, displayName, description, feature,
+                                isSettable, multiLine, sortChoices, staticImage, category, filterFlags);
+                this.feature = feature;
+        }
+
+        // here you decide what data of B is displayed in property view for A
+        @Override
+        protected Object getValue(EObject object, EStructuralFeature feature) {
+                Object propertyObject = object.eGet(feature);
+                if (propertyObject == null) return "";
+                if (propertyObject instanceof Image)
+                {
+                        String path = ((Image) propertyObject).getImagePath();
+                        return path;
+                }
+                return super.getValue(object, feature);
+        }
+
+        // this is how to handle the input from the file chooser
+        @Override
+        public void setPropertyValue(Object object, Object value) {
+                if (object instanceof EObject)
+                {
+                        EObject eobject = (EObject) object;
+                        Image backgroundImage = ExhibitionFactory.eINSTANCE.createImage();
+                        backgroundImage.setImagePath(value.toString());
+                        eobject.eSet(feature, backgroundImage);
+                        return;
+                }
+                super.setPropertyValue(object, value);
+        }
+        
+        
+}
+}}}