Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-after / ui / org / eclipse / jdt / internal / ui / text / java / MethodDeclarationCompletionProposal.java

diff --git a/case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/text/java/MethodDeclarationCompletionProposal.java b/case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/text/java/MethodDeclarationCompletionProposal.java
new file mode 100644 (file)
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+++ b/case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/text/java/MethodDeclarationCompletionProposal.java
@@ -0,0 +1,138 @@
+/*******************************************************************************
+ * 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.text.java;
+
+import java.util.Collection;
+import java.util.Set;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IStatus;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.StyledString;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.ICompletionProposalExtension4;
+
+import org.eclipse.jdt.core.IMethod;
+import org.eclipse.jdt.core.IType;
+import org.eclipse.jdt.core.Signature;
+import org.eclipse.jdt.core.dom.rewrite.ImportRewrite;
+
+import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
+import org.eclipse.jdt.internal.corext.util.JavaConventionsUtil;
+
+import org.eclipse.jdt.ui.JavaElementImageDescriptor;
+import org.eclipse.jdt.ui.text.java.IJavaCompletionProposal;
+
+import org.eclipse.jdt.internal.ui.JavaPlugin;
+import org.eclipse.jdt.internal.ui.JavaPluginImages;
+import org.eclipse.jdt.internal.ui.preferences.JavaPreferencesSettings;
+import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;
+
+
+/**
+ * Method declaration proposal.
+ */
+public class MethodDeclarationCompletionProposal extends JavaTypeCompletionProposal implements ICompletionProposalExtension4 {
+
+
+       public static void evaluateProposals(IType type, String prefix, int offset, int length, int relevance, Set<String> suggestedMethods, Collection<IJavaCompletionProposal> result) throws CoreException {
+               IMethod[] methods= type.getMethods();
+               if (!type.isInterface()) {
+                       String constructorName= type.getElementName();
+                       if (constructorName.length() > 0 && constructorName.startsWith(prefix) && !hasMethod(methods, constructorName) && suggestedMethods.add(constructorName)) {
+                               result.add(new MethodDeclarationCompletionProposal(type, constructorName, null, offset, length, relevance + 500));
+                       }
+               }
+
+               if (prefix.length() > 0 && !"main".equals(prefix) && !hasMethod(methods, prefix) && suggestedMethods.add(prefix)) { //$NON-NLS-1$
+                       if (!JavaConventionsUtil.validateMethodName(prefix, type).matches(IStatus.ERROR))
+                               result.add(new MethodDeclarationCompletionProposal(type, prefix, Signature.SIG_VOID, offset, length, relevance));
+               }
+       }
+
+       private static boolean hasMethod(IMethod[] methods, String name) {
+               for (int i= 0; i < methods.length; i++) {
+                       IMethod curr= methods[i];
+                       if (curr.getElementName().equals(name) && curr.getParameterTypes().length == 0) {
+                               return true;
+                       }
+               }
+               return false;
+       }
+
+       public final IType fType;
+       public final String fReturnTypeSig;
+       public final String fMethodName;
+
+       public MethodDeclarationCompletionProposal(IType type, String methodName, String returnTypeSig, int start, int length, int relevance) {
+               super("", type.getCompilationUnit(), start, length, null, getDisplayName(methodName, returnTypeSig), relevance); //$NON-NLS-1$
+               Assert.isNotNull(type);
+               Assert.isNotNull(methodName);
+
+               fType= type;
+               fMethodName= methodName;
+               fReturnTypeSig= returnTypeSig;
+
+               if (returnTypeSig == null) {
+                       setProposalInfo(new ProposalInfo(type));
+
+                       ImageDescriptor desc= new JavaElementImageDescriptor(JavaPluginImages.DESC_MISC_PUBLIC, JavaElementImageDescriptor.CONSTRUCTOR, JavaElementImageProvider.SMALL_SIZE);
+                       setImage(JavaPlugin.getImageDescriptorRegistry().get(desc));
+               } else {
+                       setImage(JavaPluginImages.get(JavaPluginImages.IMG_MISC_PRIVATE));
+               }
+       }
+
+       private static StyledString getDisplayName(String methodName, String returnTypeSig) {
+               StyledString buf= new StyledString();
+               buf.append(methodName);
+               buf.append('(');
+               buf.append(')');
+               if (returnTypeSig != null) {
+                       buf.append(" : "); //$NON-NLS-1$
+                       buf.append(Signature.toString(returnTypeSig));
+                       buf.append(" - ", StyledString.QUALIFIER_STYLER); //$NON-NLS-1$
+                       buf.append(JavaTextMessages.MethodCompletionProposal_method_label, StyledString.QUALIFIER_STYLER);
+               } else {
+                       buf.append(" - ", StyledString.QUALIFIER_STYLER); //$NON-NLS-1$
+                       buf.append(JavaTextMessages.MethodCompletionProposal_constructor_label, StyledString.QUALIFIER_STYLER);
+               }
+               return buf;
+       }
+
+       /* (non-Javadoc)
+        * @see JavaTypeCompletionProposal#updateReplacementString(IDocument, char, int, ImportRewrite)
+        */
+       @Override
+       protected boolean updateReplacementString(IDocument document, char trigger, int offset, ImportRewrite impRewrite) throws CoreException, BadLocationException {
+
+               CodeGenerationSettings settings= JavaPreferencesSettings.getCodeGenerationSettings(fType.getJavaProject());
+               settings.generated_1584584742950606520(document, this);
+               return true;
+       }
+
+       @Override
+       public CharSequence getPrefixCompletionText(IDocument document, int completionOffset) {
+               return new String(); // don't let method stub proposals complete incrementally
+       }
+
+       /*
+        * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension4#isAutoInsertable()
+        */
+       public boolean isAutoInsertable() {
+               return false;
+       }
+
+}