public TextViewDocumentHighlighter(HighlightingColorizer colorizer, TextView textView, TextDocument document, HighlightingRuleSet baseRuleSet)
: base(document, baseRuleSet)
{
Debug.Assert(colorizer != null);
Debug.Assert(textView != null);
this.colorizer = colorizer;
this.textView = textView;
}
/// <inheritdoc/>
protected override void ColorizeLine(DocumentLine line)
{
var sections = richTextModel.GetHighlightedSections(line.Offset, line.Length);
foreach (HighlightedSection section in sections)
{
if (HighlightingColorizer.IsEmptyColor(section.Color))
{
continue;
}
ChangeLinePart(section.Offset, section.Offset + section.Length,
visualLineElement => HighlightingColorizer.ApplyColorToElement(visualLineElement, section.Color, CurrentContext));
}
}
void OnSyntaxHighlightingChanged(IHighlightingDefinition newValue)
{
if (colorizer != null) {
this.TextArea.TextView.LineTransformers.Remove(colorizer);
colorizer = null;
}
if (newValue != null) {
TextView textView = this.TextArea.TextView;
colorizer = new HighlightingColorizer(textView, newValue.MainRuleSet);
textView.LineTransformers.Insert(0, colorizer);
}
}
void UpdatePreview()
{
XshdSyntaxDefinition xshd = (XshdSyntaxDefinition)languageComboBox.SelectedItem;
if (xshd != null) {
var customizationsForCurrentLanguage = customizationList.Where(c => c.Language == null || c.Language == xshd.Name);
CustomizingHighlighter.ApplyCustomizationsToDefaultElements(textEditor, customizationsForCurrentLanguage);
ApplyToRendering(textEditor, customizationsForCurrentLanguage);
var item = (IHighlightingItem)listBox.SelectedItem;
TextView textView = textEditor.TextArea.TextView;
foldingManager.Clear();
textMarkerService.RemoveAll(m => true);
textView.LineTransformers.Remove(colorizer);
colorizer = null;
if (item != null) {
if (item.ParentDefinition != null) {
var highlighter = new CustomizingHighlighter(
new DocumentHighlighter(textView.Document, item.ParentDefinition),
customizationsForCurrentLanguage
);
colorizer = new HighlightingColorizer(highlighter);
textView.LineTransformers.Add(colorizer);
}
textEditor.Select(0, 0);
bracketHighlighter.SetHighlight(null);
item.ShowExample(textEditor.TextArea);
ITextMarker m = textMarkerService.TextMarkers.SingleOrDefault();
if (m != null && m.Tag != null) {
((Action<IHighlightingItem, ITextMarker>)m.Tag)(item, m);
}
}
}
}
public TextViewDocumentHighlighter(HighlightingColorizer colorizer, TextView textView, TextDocument document, HighlightingRuleSet baseRuleSet)
: base(document, baseRuleSet)
{
Debug.Assert(colorizer != null);
Debug.Assert(textView != null);
this.colorizer = colorizer;
this.textView = textView;
}