/**
* Appends a string with styles to the {@link StyledString}.
*
* @param string the string to append
* @return returns a reference to this object
*/
public StyledString append(StyledString string) {
if (string.length() == 0) {
return this;
}
int offset = fBuffer.length();
fBuffer.append(string.toString());
List otherRuns = string.fStyleRuns;
if (otherRuns != null && !otherRuns.isEmpty()) {
for (int i = 0; i < otherRuns.size(); i++) {
StyleRun curr = (StyleRun) otherRuns.get(i);
if (i == 0 && curr.offset != 0) {
appendStyleRun(null, offset); // appended string will
// start with the default
// color
}
appendStyleRun(curr.style, offset + curr.offset);
}
} else {
appendStyleRun(null, offset); // appended string will start with
// the default color
}
return this;
}
@Override
public StyledString getStyledDisplayString(
IDocument document, int offset, BoldStylerProvider boldStylerProvider) {
// Extension enabled with enableColoredLabels(true); on PyContentAssistant.
String[] strs = PySelection.getActivationTokenAndQual(document, offset, false);
if (strs[1].length() == 0 && (strs[0].length() == 0 || strs[0].endsWith("."))) {
StyledString styledString = new StyledString(getDisplayString());
return styledString;
}
String qualifier = strs[1];
final boolean useSubstringMatchInCodeCompletion =
PyCodeCompletionPreferencesPage.getUseSubstringMatchInCodeCompletion();
String original = getDisplayString();
// Qualifier is everything after " - ".
int index = original.indexOf(" - ");
String strBeforeQualifier;
if (index != -1) {
strBeforeQualifier = original.substring(0, index);
} else {
strBeforeQualifier = original;
}
StyledString styledString = new StyledString();
if (useSubstringMatchInCodeCompletion) {
int i = strBeforeQualifier.toLowerCase().indexOf(qualifier.toLowerCase());
if (i < 0) {
styledString.append(strBeforeQualifier);
} else {
styledString.append(strBeforeQualifier.substring(0, i));
styledString.append(
strBeforeQualifier.substring(i, i + qualifier.length()),
boldStylerProvider.getBoldStyler());
styledString.append(
strBeforeQualifier.substring(i + qualifier.length(), strBeforeQualifier.length()));
}
} else {
styledString.append(strBeforeQualifier);
}
if (styledString.length() < original.length()) {
styledString.append(original.substring(styledString.length()), StyledString.QUALIFIER_STYLER);
}
return styledString;
}
@Override
public StyledString getStyledText(Object element) {
StyledString string =
CElementLabels.getStyledTextLabel(
element, (evaluateTextFlags(element) | CElementLabels.COLORIZE));
if (string.length() == 0 && (element instanceof IStorage)) {
string = new StyledString(fStorageLabelProvider.getText(element));
}
String decorated = decorateText(string.getString(), element);
if (decorated != null) {
return StyledCellLabelProvider.styleDecoratedString(
decorated, StyledString.DECORATIONS_STYLER, string);
}
return string;
}
private StyledString literalNames(List<? extends EObject> exprs) {
StyledString result = new StyledString();
boolean first = true;
for (EObject expr : exprs) {
Object label = doGetText(expr);
if (first) first = false;
else result.append(", ");
if (label instanceof String) result.append((String) label);
else if (label instanceof StyledString) result.append((StyledString) label);
else result.append("?");
}
// truncate long list (bad way, destroys individual styles)
if (result.length() > LABEL_LIMIT)
return new StyledString(result.getString().substring(0, LABEL_LIMIT) + "...");
return result;
}