Java Code Examples for org.eclipse.jdt.internal.corext.util.CodeFormatterUtil#getIndentWidth()

@Override
public String[] getIndentPrefixes(ISourceViewer sourceViewer, String contentType) {
		IJavaProject project= getProject();
	final int tabWidth= CodeFormatterUtil.getTabWidth(project);
	final int indentWidth= CodeFormatterUtil.getIndentWidth(project);
	boolean allowTabs= tabWidth <= indentWidth;

	String indentMode;
	if (project == null)
		indentMode= JavaCore.getOption(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR);
	else
		indentMode= project.getOption(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, true);

	boolean useSpaces= JavaCore.SPACE.equals(indentMode) || DefaultCodeFormatterConstants.MIXED.equals(indentMode);

	Assert.isLegal(allowTabs || useSpaces);

	if (!allowTabs) {
		char[] spaces= new char[indentWidth];
		Arrays.fill(spaces, ' ');
		return new String[] { new String(spaces), "" }; //$NON-NLS-1$
	} else if  (!useSpaces)
		return getIndentPrefixesForTab(tabWidth);
	else
		return getIndentPrefixesForSpaces(tabWidth);
}
 

/**
 * Performs the actual rewriting and adds an edit to the ASTRewrite set with
 * {@link #setSourceRewrite(CompilationUnitRewrite)}.
 *
 * @throws JavaModelException
 */
public void createEdit() throws JavaModelException {
	try {
		IDocument document= new Document(fDelegateRewrite.getCu().getBuffer().getContents());
		TextEdit edit= fDelegateRewrite.getASTRewrite().rewriteAST(document, fDelegateRewrite.getCu().getJavaProject().getOptions(true));
		edit.apply(document, TextEdit.UPDATE_REGIONS);

		int tabWidth = CodeFormatterUtil.getTabWidth(fOriginalRewrite.getCu().getJavaProject());
		int identWidth = CodeFormatterUtil.getIndentWidth(fOriginalRewrite.getCu().getJavaProject());

		String newSource= Strings.trimIndentation(document.get(fTrackedPosition.getStartPosition(), fTrackedPosition.getLength()),
				tabWidth, identWidth, false);

		ASTNode placeholder= fOriginalRewrite.getASTRewrite().createStringPlaceholder(newSource, fDeclaration.getNodeType());

		CategorizedTextEditGroup groupDescription= fOriginalRewrite.createCategorizedGroupDescription(getTextEditGroupLabel(), CATEGORY_DELEGATE);
		ListRewrite bodyDeclarationsListRewrite= fOriginalRewrite.getASTRewrite().getListRewrite(fDeclaration.getParent(), getTypeBodyDeclarationsProperty());
		if (fCopy) {
			if (fInsertBefore) {
				bodyDeclarationsListRewrite.insertBefore(placeholder, fDeclaration, groupDescription);
			} else {
				bodyDeclarationsListRewrite.insertAfter(placeholder, fDeclaration, groupDescription);
			}
		} else {
			bodyDeclarationsListRewrite.replace(fDeclaration, placeholder, groupDescription);
		}

	} catch (BadLocationException e) {
		//JavaPlugin.log(e);
	}
}
 

public static CodeGenerationSettings getCodeGenerationSettings(IResource resource) {
	IJavaProject project = JavaCore.create(resource.getProject());

	CodeGenerationSettings res = new CodeGenerationSettings();
	res.overrideAnnotation = true;
	res.createComments = false;
	// TODO indentation settings should be retrieved from client/external
	// settings?
	res.tabWidth = CodeFormatterUtil.getTabWidth(project);
	res.indentWidth = CodeFormatterUtil.getIndentWidth(project);
	return res;
}
 

/**
 * Indents line <code>line</code> in <code>document</code> with <code>indent</code>.
 * Leaves leading comment signs alone.
 *
 * @param document the document
 * @param line the line
 * @param indent the indentation to insert
 * @param tabLength the length of a tab
 * @throws BadLocationException on concurrent document modification
 */
private void addIndent(Document document, int line, CharSequence indent, int tabLength) throws BadLocationException {
	IRegion region= document.getLineInformation(line);
	int insert= region.getOffset();
	int endOffset= region.getOffset() + region.getLength();

	// Compute insert after all leading line comment markers
	int newInsert= insert;
	while (newInsert < endOffset - 2 && document.get(newInsert, 2).equals(LINE_COMMENT))
		newInsert += 2;

	// Heuristic to check whether it is commented code or just a comment
	if (newInsert > insert) {
		int whitespaceCount= 0;
		int i= newInsert;
		while (i < endOffset - 1) {
			 char ch= document.get(i, 1).charAt(0);
			 if (!Character.isWhitespace(ch))
				 break;
			 whitespaceCount= whitespaceCount + computeVisualLength(ch, tabLength);
			 i++;
		}

		if (whitespaceCount != 0 && whitespaceCount >= CodeFormatterUtil.getIndentWidth(fProject))
			insert= newInsert;
	}

	// Insert indent
	document.replace(insert, 0, indent.toString());
}
 

public static CodeGenerationSettings getCodeGenerationSettings(IJavaProject project) {
	CodeGenerationSettings res= new CodeGenerationSettings();
	res.createComments= Boolean.valueOf(PreferenceConstants.getPreference(PreferenceConstants.CODEGEN_ADD_COMMENTS, project)).booleanValue();
	res.useKeywordThis= Boolean.valueOf(PreferenceConstants.getPreference(PreferenceConstants.CODEGEN_KEYWORD_THIS, project)).booleanValue();
	res.overrideAnnotation= Boolean.valueOf(PreferenceConstants.getPreference(PreferenceConstants.CODEGEN_USE_OVERRIDE_ANNOTATION, project)).booleanValue();
	res.importIgnoreLowercase= Boolean.valueOf(PreferenceConstants.getPreference(PreferenceConstants.ORGIMPORTS_IGNORELOWERCASE, project)).booleanValue();
	res.tabWidth= CodeFormatterUtil.getTabWidth(project);
	res.indentWidth= CodeFormatterUtil.getIndentWidth(project);
	return res;
}
 

private int prefIndentationSize() {
	return CodeFormatterUtil.getIndentWidth(fProject);
}
 

private int getIndentSize() {
	return CodeFormatterUtil.getIndentWidth(null);
}