public void Draw(TextView textView, DrawingContext drawingContext)
{
if (textView == null)
throw new ArgumentNullException("textView");
if (drawingContext == null)
throw new ArgumentNullException("drawingContext");
if (currentResults == null || !textView.VisualLinesValid)
return;
var visualLines = textView.VisualLines;
if (visualLines.Count == 0)
return;
int viewStart = visualLines.First().FirstDocumentLine.Offset;
int viewEnd = visualLines.Last().LastDocumentLine.EndOffset;
foreach (SearchResult result in currentResults.FindOverlappingSegments(viewStart, viewEnd - viewStart)) {
BackgroundGeometryBuilder geoBuilder = new BackgroundGeometryBuilder();
geoBuilder.AlignToMiddleOfPixels = true;
geoBuilder.CornerRadius = 3;
geoBuilder.AddSegment(textView, result);
Geometry geometry = geoBuilder.CreateGeometry();
if (geometry != null) {
drawingContext.DrawGeometry(markerBrush, markerPen, geometry);
}
}
}
protected override void OnRender(DrawingContext drawingContext)
{
base.OnRender(drawingContext);
BackgroundGeometryBuilder geoBuilder = new BackgroundGeometryBuilder();
geoBuilder.AlignToMiddleOfPixels = true;
geoBuilder.ExtendToFullWidthAtLineEnd = textArea.Selection.EnableVirtualSpace;
geoBuilder.CornerRadius = textArea.SelectionCornerRadius;
foreach (var segment in textArea.Selection.Segments) {
geoBuilder.AddSegment(textView, segment);
}
Geometry geometry = geoBuilder.CreateGeometry();
if (geometry != null) {
drawingContext.DrawGeometry(textArea.SelectionBrush, textArea.SelectionBorder, geometry);
}
}
public void Draw(TextView textView, System.Windows.Media.DrawingContext drawingContext)
{
ISegment s = element.Segment;
if (s != null) {
BackgroundGeometryBuilder geoBuilder = new BackgroundGeometryBuilder();
geoBuilder.AlignToMiddleOfPixels = true;
if (Layer == KnownLayer.Background) {
geoBuilder.AddSegment(textView, s);
drawingContext.DrawGeometry(backgroundBrush, null, geoBuilder.CreateGeometry());
} else {
// draw foreground only if active
if (element.isCaretInside) {
geoBuilder.AddSegment(textView, s);
foreach (BoundActiveElement boundElement in element.context.ActiveElements.OfType<BoundActiveElement>()) {
if (boundElement.targetElement == element) {
geoBuilder.AddSegment(textView, boundElement.Segment);
geoBuilder.CloseFigure();
}
}
drawingContext.DrawGeometry(null, activeBorderPen, geoBuilder.CreateGeometry());
}
}
}
}