Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-before / ui / org / eclipse / jdt / ui / dialogs / TypeSelectionExtension.java

diff --git a/case-study/jdt-before/ui/org/eclipse/jdt/ui/dialogs/TypeSelectionExtension.java b/case-study/jdt-before/ui/org/eclipse/jdt/ui/dialogs/TypeSelectionExtension.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2008 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.eclipse.jdt.ui.dialogs;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+import org.eclipse.ui.dialogs.ISelectionStatusValidator;
+
+import org.eclipse.jdt.core.IType;
+
+/**
+ * The class provides API to extend type selection dialogs like the
+ * open type dialog.
+ * <p>
+ * The class should be subclassed by clients wishing to extend the type
+ * selection dialog.
+ * </p>
+ *
+ * @see org.eclipse.jdt.ui.JavaUI#createTypeDialog(org.eclipse.swt.widgets.Shell, org.eclipse.jface.operation.IRunnableContext, org.eclipse.jdt.core.search.IJavaSearchScope, int, boolean, String, TypeSelectionExtension)
+ * @since 3.2
+ */
+public abstract class TypeSelectionExtension {
+
+       private ITypeSelectionComponent fComponent;
+
+       /**
+        * Initializes the type dialog extension with the given type dialog
+        *
+        * @param component the type dialog hosting this extension
+        */
+       public final void initialize(ITypeSelectionComponent component) {
+               fComponent= component;
+       }
+
+       /**
+        * Returns the type selection dialog or <code>null</code> if
+        * the extension has not been initialized yet.
+        *
+        * @return the type selection dialog or <code>null</code>
+        */
+       public final ITypeSelectionComponent getTypeSelectionComponent() {
+               return fComponent;
+       }
+
+       /**
+        * Creates the content area which the extensions contributes to the
+        * type selection dialog. The area will be presented between the
+        * table showing the list of types and the optional status line.
+        *
+        * @param parent the parent of the additional content area
+        * @return the additional content area or <code>null</code> if no
+        *  additional content area is required
+        */
+       public Control createContentArea(Composite parent) {
+               return null;
+       }
+
+       /**
+        * Returns the filter extension or <code>null</code> if
+        * no additional filtering is required.
+        *
+        * @return the additional filter extension
+        */
+       public ITypeInfoFilterExtension getFilterExtension() {
+               return null;
+       }
+
+       /**
+        * Returns the selection validator or <code>null</code> if
+        * selection validation is not required. The elements passed
+        * to the selection validator are of type {@link IType}.
+        *
+        * @return the selection validator or <code>null</code>
+        */
+       public ISelectionStatusValidator getSelectionValidator() {
+               return null;
+       }
+
+       /**
+        * Returns an image provider or <code>null</code> if the standard
+        * images should be used.
+        *
+        * @return the image provider
+        */
+       public ITypeInfoImageProvider getImageProvider() {
+               return null;
+       }
+}