Examples with IRegion org.eclipse.jface.text.IRegion used on opensource projects

Example 16 with IRegion

use of org.eclipse.jface.text.IRegion in project che by eclipse.

the class TemplateEngine method complete.

/**
	 * Inspects the context of the compilation unit around <code>completionPosition</code>
	 * and feeds the collector with proposals.
	 * @param viewer the text viewer
	 * @param completionPosition the context position in the document of the text viewer
	 * @param compilationUnit the compilation unit (may be <code>null</code>)
	 */
public void complete(ITextViewer viewer, int completionPosition, ICompilationUnit compilationUnit) {
    IDocument document = viewer.getDocument();
    if (!(fContextType instanceof CompilationUnitContextType))
        return;
    Point selection = viewer.getSelectedRange();
    Position position = new Position(completionPosition, selection.y);
    // remember selected text
    String selectedText = null;
    if (selection.y != 0) {
        try {
            selectedText = document.get(selection.x, selection.y);
            document.addPosition(position);
            fPositions.put(document, position);
        } catch (BadLocationException e) {
        }
    }
    CompilationUnitContext context = ((CompilationUnitContextType) fContextType).createContext(document, position, compilationUnit);
    //$NON-NLS-1$
    context.setVariable("selection", selectedText);
    int start = context.getStart();
    int end = context.getEnd();
    IRegion region = new Region(start, end - start);
    Template[] templates = JavaPlugin.getDefault().getTemplateStore().getTemplates();
    if (selection.y == 0) {
        for (int i = 0; i != templates.length; i++) {
            Template template = templates[i];
            if (context.canEvaluate(template)) {
                fProposals.add(new TemplateProposal(template, context, region, getImage()));
            }
        }
    } else {
        if (context.getKey().length() == 0)
            context.setForceEvaluation(true);
        boolean multipleLinesSelected = areMultipleLinesSelected(viewer);
        for (int i = 0; i != templates.length; i++) {
            Template template = templates[i];
            if (context.canEvaluate(template) && (!multipleLinesSelected && template.getPattern().indexOf($_WORD_SELECTION) != -1 || (multipleLinesSelected && template.getPattern().indexOf($_LINE_SELECTION) != -1))) {
                fProposals.add(new TemplateProposal(templates[i], context, region, getImage()));
            }
        }
    }
}

Example 17 with IRegion

use of org.eclipse.jface.text.IRegion in project che by eclipse.

the class MethodDeclarationCompletionProposal method updateReplacementString.

/* (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());
    boolean addComments = settings.createComments;
    String[] empty = new String[0];
    String lineDelim = TextUtilities.getDefaultLineDelimiter(document);
    String declTypeName = fType.getTypeQualifiedName('.');
    boolean isInterface = fType.isInterface();
    StringBuffer buf = new StringBuffer();
    if (addComments) {
        String comment = CodeGeneration.getMethodComment(fType.getCompilationUnit(), declTypeName, fMethodName, empty, empty, fReturnTypeSig, empty, null, lineDelim);
        if (comment != null) {
            buf.append(comment);
            buf.append(lineDelim);
        }
    }
    if (fReturnTypeSig != null) {
        if (!isInterface) {
            //$NON-NLS-1$
            buf.append("private ");
        }
    } else {
        if (fType.isEnum())
            //$NON-NLS-1$
            buf.append("private ");
        else
            //$NON-NLS-1$
            buf.append("public ");
    }
    if (fReturnTypeSig != null) {
        buf.append(Signature.toString(fReturnTypeSig));
    }
    buf.append(' ');
    buf.append(fMethodName);
    if (isInterface) {
        //$NON-NLS-1$
        buf.append("();");
        buf.append(lineDelim);
    } else {
        //$NON-NLS-1$
        buf.append("() {");
        buf.append(lineDelim);
        String body = CodeGeneration.getMethodBodyContent(fType.getCompilationUnit(), declTypeName, fMethodName, fReturnTypeSig == null, "", //$NON-NLS-1$
        lineDelim);
        if (body != null) {
            buf.append(body);
            buf.append(lineDelim);
        }
        //$NON-NLS-1$
        buf.append("}");
        buf.append(lineDelim);
    }
    String stub = buf.toString();
    // use the code formatter
    IRegion region = document.getLineInformationOfOffset(getReplacementOffset());
    int lineStart = region.getOffset();
    int indent = Strings.computeIndentUnits(document.get(lineStart, getReplacementOffset() - lineStart), settings.tabWidth, settings.indentWidth);
    String replacement = CodeFormatterUtil.format(CodeFormatter.K_CLASS_BODY_DECLARATIONS, stub, indent, lineDelim, fType.getJavaProject());
    if (replacement.endsWith(lineDelim)) {
        replacement = replacement.substring(0, replacement.length() - lineDelim.length());
    }
    setReplacementString(Strings.trimLeadingTabsAndSpaces(replacement));
    return true;
}

Example 18 with IRegion

use of org.eclipse.jface.text.IRegion in project che by eclipse.

the class CodeTemplateContext method changeLineDelimiter.

private static String changeLineDelimiter(String code, String lineDelim) {
    try {
        ILineTracker tracker = new DefaultLineTracker();
        tracker.set(code);
        int nLines = tracker.getNumberOfLines();
        if (nLines == 1) {
            return code;
        }
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < nLines; i++) {
            if (i != 0) {
                buf.append(lineDelim);
            }
            IRegion region = tracker.getLineInformation(i);
            String line = code.substring(region.getOffset(), region.getOffset() + region.getLength());
            buf.append(line);
        }
        return buf.toString();
    } catch (BadLocationException e) {
        // can not happen
        return code;
    }
}

Example 19 with IRegion

use of org.eclipse.jface.text.IRegion in project che by eclipse.

the class JavaContext method getIndentation.

/**
	 * Returns the indentation level at the position of code completion.
	 *
	 * @return the indentation level at the position of the code completion
	 */
private int getIndentation() {
    int start = getStart();
    IDocument document = getDocument();
    try {
        IRegion region = document.getLineInformationOfOffset(start);
        String lineContent = document.get(region.getOffset(), region.getLength());
        IJavaProject project = getJavaProject();
        return Strings.computeIndentUnits(lineContent, project);
    } catch (BadLocationException e) {
        return 0;
    }
}

Example 20 with IRegion

use of org.eclipse.jface.text.IRegion in project che by eclipse.

the class IndentUtil method addIndent.

/**
	 * 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 commentlines
	 * @throws BadLocationException on concurrent document modification
	 */
private static void addIndent(IDocument document, int line, CharSequence indent, boolean[] commentlines, int relative) throws BadLocationException {
    IRegion region = document.getLineInformation(line);
    int insert = region.getOffset();
    int endOffset = region.getOffset() + region.getLength();
    // go behind line comments
    if (!commentlines[relative]) {
        while (insert < endOffset - 2 && document.get(insert, 2).equals(SLASHES)) insert += 2;
    }
    // insert indent
    document.replace(insert, 0, indent.toString());
}