Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-before / ui / org / eclipse / jdt / internal / ui / search / PostfixLabelProvider.java

diff --git a/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/search/PostfixLabelProvider.java b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/search/PostfixLabelProvider.java
new file mode 100644 (file)
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+/*******************************************************************************
+ * Copyright (c) 2000, 2011 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.internal.ui.search;
+
+import org.eclipse.swt.graphics.Image;
+
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.StyledString;
+
+import org.eclipse.jdt.core.IClassFile;
+import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.IJavaModel;
+import org.eclipse.jdt.core.IType;
+
+import org.eclipse.jdt.ui.JavaElementLabels;
+
+
+public class PostfixLabelProvider extends SearchLabelProvider {
+       private ITreeContentProvider fContentProvider;
+
+       public PostfixLabelProvider(JavaSearchResultPage page) {
+               super(page);
+               fContentProvider= new LevelTreeContentProvider.FastJavaElementProvider();
+       }
+
+       @Override
+       public Image getImage(Object element) {
+               Image image= super.getImage(element);
+               if (image != null)
+                       return image;
+               return getParticipantImage(element);
+       }
+
+       @Override
+       public String getText(Object element) {
+               String labelWithCounts= getLabelWithCounts(element, internalGetText(element));
+               return labelWithCounts + getQualification(element);
+       }
+
+       private String getQualification(Object element) {
+               StringBuffer res= new StringBuffer();
+
+               ITreeContentProvider provider= (ITreeContentProvider) fPage.getViewer().getContentProvider();
+               Object visibleParent= provider.getParent(element);
+               Object realParent= fContentProvider.getParent(element);
+               Object lastElement= element;
+               while (realParent != null && !(realParent instanceof IJavaModel) && !realParent.equals(visibleParent)) {
+                       if (!isSameInformation(realParent, lastElement))  {
+                               res.append(JavaElementLabels.CONCAT_STRING).append(internalGetText(realParent));
+                       }
+                       lastElement= realParent;
+                       realParent= fContentProvider.getParent(realParent);
+               }
+               return res.toString();
+       }
+
+       @Override
+       protected boolean hasChildren(Object element) {
+               ITreeContentProvider contentProvider= (ITreeContentProvider) fPage.getViewer().getContentProvider();
+               return contentProvider.hasChildren(element);
+       }
+
+       private String internalGetText(Object element) {
+               String text= super.getText(element);
+               if (text != null && text.length() > 0)
+                       return text;
+               return getParticipantText(element);
+       }
+
+       private StyledString internalGetStyledText(Object element) {
+               StyledString text= super.getStyledText(element);
+               if (text != null && text.length() > 0)
+                       return text;
+               return getStyledParticipantText(element);
+       }
+
+       private boolean isSameInformation(Object realParent, Object lastElement) {
+               if (lastElement instanceof IType) {
+                       IType type= (IType) lastElement;
+                       if (realParent instanceof IClassFile) {
+                               if (type.getClassFile().equals(realParent))
+                                       return true;
+                       } else if (realParent instanceof ICompilationUnit) {
+                               if (type.getCompilationUnit().equals(realParent))
+                                       return true;
+                       }
+               }
+               return false;
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider#getStyledText(java.lang.Object)
+        */
+       @Override
+       public StyledString getStyledText(Object element) {
+               StyledString styledString= getColoredLabelWithCounts(element, internalGetStyledText(element));
+               styledString.append(getQualification(element), StyledString.QUALIFIER_STYLER);
+               return styledString;
+       }
+
+}