void SearchDefinition(IDocument document, BracketSearchResult result)
{
if (document.GetCharAt(result.OpeningBracketOffset) != '{')
return;
// get line
var documentLine = document.GetLineByOffset(result.OpeningBracketOffset);
while (documentLine != null && IsBracketOnly(document, documentLine))
documentLine = documentLine.PreviousLine;
if (documentLine != null) {
result.DefinitionHeaderOffset = documentLine.Offset;
result.DefinitionHeaderLength = documentLine.Length;
}
}
public void Show(BracketSearchResult bracketSearchResult)
{
ClosePopup();
if (bracketSearchResult == null || bracketSearchResult.DefinitionHeaderLength == 0)
return;
int startOffset = bracketSearchResult.DefinitionHeaderOffset;
int endOffset = startOffset + bracketSearchResult.DefinitionHeaderLength;
// show whole line even if the definition is only a part:
DocumentLine firstLine = editor.Document.GetLineByOffset(startOffset);
DocumentLine lastLine = editor.Document.GetLineByOffset(endOffset);
TextEditor popupEditor = new TextEditor();
popupEditor.IsReadOnly = true;
popupEditor.HorizontalScrollBarVisibility = ScrollBarVisibility.Hidden;
popupEditor.VerticalScrollBarVisibility = ScrollBarVisibility.Hidden;
popupEditor.CopySettingsFrom(editor);
IHighlighter oldHighlighter = editor.GetRequiredService<IHighlighter>();
FixedHighlighter newHighlighter = FixedHighlighter.CreateView(oldHighlighter, firstLine.Offset, lastLine.EndOffset);
popupEditor.Document = (TextDocument)newHighlighter.Document;
popupEditor.TextArea.TextView.LineTransformers.Add(new HighlightingColorizer(newHighlighter));
popup = new ExtendedPopup(editor.TextArea);
const double borderThickness = 1;
popup.Child = new Border() {
Child = popupEditor,
BorderBrush = editor.TextArea.Foreground,
BorderThickness = new Thickness(borderThickness)
};
popup.HorizontalOffset = -borderThickness - editor.TextArea.TextView.ScrollOffset.X;
popup.Placement = PlacementMode.Top;
popup.PlacementTarget = editor.TextArea.TextView;
this.currentStartOffset = firstLine.Offset;
editor.TextArea.TextView.VisualLinesChanged += textView_VisualLinesChanged;
if (editor.TextArea.TextView.VisualLinesValid)
textView_VisualLinesChanged(null, null); // open popup if necessary
}
public BracketSearchResult SearchBracket(IDocument document, int offset)
{
if (offset > 0) {
char c = document.GetCharAt(offset - 1);
int index = openingBrackets.IndexOf(c);
int otherOffset = -1;
if (index > -1)
otherOffset = SearchBracketForward(document, offset, openingBrackets[index], closingBrackets[index]);
index = closingBrackets.IndexOf(c);
if (index > -1)
otherOffset = SearchBracketBackward(document, offset - 2, openingBrackets[index], closingBrackets[index]);
if (otherOffset > -1) {
var result = new BracketSearchResult(Math.Min(offset - 1, otherOffset), 1,
Math.Max(offset - 1, otherOffset), 1);
SearchDefinition(document, result);
return result;
}
}
return null;
}
