public IContextInformation[] computeContextInformation( ITextViewer viewer, int documentOffset){
   // viewer.getSelectedRange();
   // if (selectedRange.y > 0) Text is selected. Create a context information array.
   // ContextInformation[] contextInfos = new
   // ContextInformation[STYLELABELS.length];
   // // Create one context information item for each style
   // for (int i = 0; i < STYLELABELS.length; i++)
   // contextInfos[i] = new ContextInformation("<" + STYLETAGS[i] + ">",
   // STYLELABELS[i] + " Style");
   // return contextInfos;
   // }
   return new ContextInformation[0];
}
 

/**
 * Returns the style context.
 * 
 * @return Array of style contexts
 */
public IContextInformation[] getStyleContext() {
    ContextInformation[] contextInfos = new ContextInformation[STYLELABELS.length];
    
    // Create one context information item for each style
    for (int i = 0; i < STYLELABELS.length; i++) {
        contextInfos[i] = new ContextInformation(null, STYLELABELS[i]+" Style");
    }
    return contextInfos;
}
 

public IContextInformation[] computeContextInformation(ITextViewer viewer,
		int offset) {

	// FIXME -- for testing
	// Retrieve selected range
	Point selectedRange = viewer.getSelectedRange();
	if (selectedRange.y > 0) {

		if (styleManager == null) {
			styleManager = TexStyleCompletionManager.getInstance();
		}
		return styleManager.getStyleContext();
	}
	return new ContextInformation[0];
}
 

public IContextInformation[] computeContextInformation(ITextViewer viewer, int offset) {
	// Retrieve selected range
	final Point selectedRange = viewer.getSelectedRange();
	if (selectedRange.y > 0) {
		// Text is selected. Create a context information array.
		final IContextInformation[] contextInfos = new ContextInformation[ITLAReserveredWords.ALL_WORDS_ARRAY.length];

		// Create one context information item for each style
		for (int i = 0; i < ITLAReserveredWords.ALL_WORDS_ARRAY.length; i++) {
			contextInfos[i] = new ContextInformation(null, ITLAReserveredWords.ALL_WORDS_ARRAY[i] + " Style");
		}
		return contextInfos;
	}
	return new ContextInformation[0];
}
 

public IContextInformation[] computeContextInformation(ITextViewer viewer, int offset) {
	// Retrieve selected range
	final Point selectedRange = viewer.getSelectedRange();
	if (selectedRange.y > 0) {
		// Text is selected. Create a context information array.
		final IContextInformation[] contextInfos = new ContextInformation[ITLAReserveredWords.ALL_WORDS_ARRAY.length];

		// Create one context information item for each style
		for (int i = 0; i < ITLAReserveredWords.ALL_WORDS_ARRAY.length; i++) {
			contextInfos[i] = new ContextInformation(null, ITLAReserveredWords.ALL_WORDS_ARRAY[i] + " Style");
		}
		return contextInfos;
	}
	return new ContextInformation[0];
}
 

private IContextInformation createContextInformation() {
	try {
		String information = null;
		List<CompletionEntryDetails> entryDetails = super.getEntryDetails();
		if (entryDetails == null || entryDetails.size() < 1) {
			return null;
		}
		if (isFunction()) {
			information = TypeScriptHelper.extractFunctionParameters(entryDetails.get(0).getDisplayParts());
		}
		return information != null ? new ContextInformation("", information) : null;
	} catch (TypeScriptException e) {
	}
	return null;
}
 

@Override
public IContextInformation getContextInformation() {
    if (markerResolution instanceof IMarkerResolution2) {
        IMarkerResolution2 mr2 = (IMarkerResolution2) markerResolution;
        String displayString = mr2.getDescription() == null ? mr2.getLabel() : mr2.getDescription();

        return new ContextInformation(mr2.getImage(), mr2.getLabel(), displayString);
    }
    return null;
}
 

/**
 * Returns the style completion proposals
 * 
 * @param selectedText The selected text
 * @param selectedRange The selected range
 * @return An array of completion proposals
 */
public ICompletionProposal[] getStyleCompletions(String selectedText, Point selectedRange) {

    /*
    ICompletionProposal[] result = new ICompletionProposal[keyValue.size()];
    int i=0;
    for (Iterator iter = keyValue.keySet().iterator(); iter.hasNext();) {
        String key = (String) iter.next();
        String value = (String) keyValue.get(key);
        
        
        String replacement = "{" + key + " " + selectedText + "}";
        int cursor = key.length() + 2;
        IContextInformation contextInfo = new ContextInformation(null, value+" Style");
        result[i] = new CompletionProposal(replacement, 
                selectedRange.x, selectedRange.y,
                cursor, null, value,
                contextInfo, replacement);
        i++;
    }
    */
    
    ICompletionProposal[] result = new ICompletionProposal[STYLELABELS.length];
    // Loop through all styles
    for (int i = 0; i < STYLETAGS.length; i++) {
        String tag = STYLETAGS[i];
        
        // Compute replacement text
        String replacement = tag + selectedText + "}";
        
        // Derive cursor position
        int cursor = tag.length() + selectedText.length() + 1;
        
        // Compute a suitable context information
        IContextInformation contextInfo = 
            new ContextInformation(null, STYLELABELS[i]+" Style");
        
        // Construct proposal
        result[i] = new CompletionProposal(replacement, 
                selectedRange.x, selectedRange.y,
                cursor, null, STYLELABELS[i], 
                contextInfo, replacement);
    }
    return result;
}