/// <summary>
/// Adds a span indicator.
/// </summary>
/// <param name="layerKey">The key of the layer that will add the span indicator.</param>
/// <param name="layerDisplayPriority">The display priority of the layer.</param>
/// <param name="indicator">The <see cref="SpanIndicator"/> to add.</param>
/// <param name="textRange">The text range over which to add the indicator.</param>
private void AddSpanIndicator(
ActiproSoftware.SyntaxEditor.SyntaxEditor editor,
string layerKey,
int layerDisplayPriority,
ActiproSoftware.SyntaxEditor.SpanIndicator indicator,
ActiproSoftware.SyntaxEditor.TextRange textRange)
{
// Ensure there is a selection
if (textRange.AbsoluteLength == 0)
{
ActiproSoftware.SyntaxEditor.DefaultWordBreakFinder wbf = new ActiproSoftware.SyntaxEditor.DefaultWordBreakFinder();
int startOffset = wbf.FindNextWordStart(editor.Document, textRange.StartOffset);
int endOffset = wbf.FindCurrentWordEnd(editor.Document, startOffset);
if (endOffset <= startOffset)
return;
textRange = new TextRange(startOffset, endOffset);
//MessageBox.Show("Please make a selection first.");
//return;
}
// Ensure that a syntax error layer is created...
ActiproSoftware.SyntaxEditor.SpanIndicatorLayer layer = editor.Document.SpanIndicatorLayers[layerKey];
if (layer == null)
{
layer = new ActiproSoftware.SyntaxEditor.SpanIndicatorLayer(layerKey, layerDisplayPriority);
editor.Document.SpanIndicatorLayers.Add(layer);
}
// Don't allow the indicator to overlap another one
if (layer.OverlapsWith(textRange))
{
//MessageBox.Show("Span indicators within the same layer may not overlap.");
return;
}
// Add the indicator
layer.Add(indicator, textRange);
}
