/// <summary>
/// Returns the quick info for the <see cref="SyntaxEditor"/> at the specified offset.
/// </summary>
/// <param name="syntaxEditor">The <see cref="SyntaxEditor"/> to examine.</param>
/// <param name="offset">The offset to examine. The offset is updated to the start of the context.</param>
/// <returns>The quick info for the <see cref="SyntaxEditor"/> at the specified offset.</returns>
private string GetQuickInfo(ActiproSoftware.SyntaxEditor.SyntaxEditor syntaxEditor, ref int offset)
{
Document document = syntaxEditor.Document;
// Get the identifier at the offset, if any
TextStream stream = syntaxEditor.Document.GetTextStream(offset);
if (!stream.IsAtTokenStart)
{
stream.GoToCurrentTokenStart();
}
offset = stream.Offset;
// Check to see if we're over a warning
SpanIndicatorLayer warningLayer = document.SpanIndicatorLayers[WarningLayerId];
if (warningLayer != null)
{
var sb = new StringBuilder();
var range = new TextRange(offset, offset + 1);
SpanIndicator[] spans = warningLayer.GetIndicatorsForTextRange(range);
foreach (LuatWarningSpanIndicator span in spans)
{
LuatWarning[] warnings = span.Warnings.Filter(warning => warning.TextRange.OverlapsWith(range));
var groupedWarnings = warnings.GroupItems(a => a.Message, a => a.Script);
foreach (KeyValuePair <string, LuatScript[]> groupedWarning in groupedWarnings)
{
if (sb.Length > 0)
{
sb.Append("<br /><br />");
}
sb.Append("Context: ");
sb.Append("<b>");
sb.Append(groupedWarning.Value.ToCommaSeperatedList(a => a.Name));
sb.Append("</b>");
sb.Append("<br />");
sb.Append(groupedWarning.Key);
}
}
if (sb.Length > 0)
{
return(sb.ToString());
}
}
// Get the containing node
var cu = syntaxEditor.Document.SemanticParseData as CompilationUnit;
if (cu == null)
{
return(null);
}
var qi = cu.FindNodeRecursive <IQuickInfoProvider>(stream.Offset);
if (qi == null)
{
return(null);
}
return(FormatText(qi.QuickInfo));
}