private void AddHighlight()
{
// get size
ViewTipProperty viewTip = this.textView.Get <ViewTipProperty>();
if (viewTip == null)
{
return;
}
SnapshotPoint viewPos;
if (!RainbowProvider.TryMapToView(this.textView, viewTip.Position, out viewPos))
{
return;
}
var line = this.textView.TextViewLines.GetTextViewLineContainingBufferPosition(viewPos);
if (line == null)
{
return;
}
Rect rc = new Rect(
new Point(textView.ViewportLeft, line.TextTop),
new Point(Math.Max(textView.ViewportRight, line.TextRight), line.TextBottom)
);
var properties = this.formatMap.GetProperties(Rainbows.TipHilight);
rc = CreateVisual(line.Extent, rc, properties);
}
private void MoveCaretTo(SnapshotPoint position)
{
SnapshotPoint viewPos;
if (RainbowProvider.TryMapToView(this.textView, position, out viewPos))
{
this.textView.Caret.MoveTo(viewPos);
var span = new SnapshotSpan(viewPos, 0);
this.textView.ViewScroller.EnsureSpanVisible(span);
}
}
private void RedrawVisuals(SnapshotPoint caret, bool forceRedraw)
{
if (!this.provider.Settings.RainbowLinesEnabled)
{
this.layer.RemoveAllAdornments();
return;
}
if (!RainbowProvider.TryMapPosToBuffer(this.view, caret, out caret))
{
this.layer.RemoveAllAdornments();
return;
}
var provider = caret.Snapshot.TextBuffer.Get <RainbowProvider>();
var braces = provider?.BufferBraces.GetBracePairFromPosition(caret, RainbowHighlightMode.TrackInsertionPoint);
if (braces == null)
{
this.currentSpan = default(SnapshotSpan);
this.layer.RemoveAllAdornments();
return;
}
SnapshotPoint opening = braces.Item1.ToPoint(caret.Snapshot);
SnapshotPoint closing = braces.Item2.ToPoint(caret.Snapshot);
if (RainbowProvider.TryMapToView(this.view, opening, out opening) &&
RainbowProvider.TryMapToView(this.view, closing, out closing))
{
var newSpan = new SnapshotSpan(opening, closing);
if (this.currentSpan == newSpan && !forceRedraw)
{
return; // don't redraw it
}
this.currentSpan = default(SnapshotSpan);
var path = CreateVisuals(opening, closing, caret);
this.layer.RemoveAllAdornments();
if (path != null)
{
var adornment = MakeAdornment(path, braces.Item1.Depth);
this.layer.AddAdornment(
AdornmentPositioningBehavior.OwnerControlled, newSpan,
TAG, adornment, null
);
this.currentSpan = newSpan;
}
}
}
private void StartRainbowHighlight(ITextView view, RainbowHighlightMode mode)
{
if (startedEffect)
{
return;
}
startedEffect = true;
SnapshotPoint bufferPos;
if (!RainbowProvider.TryMapCaretToBuffer(view, out bufferPos))
{
return;
}
ITextBuffer buffer = bufferPos.Snapshot.TextBuffer;
RainbowProvider provider = buffer.Get <RainbowProvider>();
if (provider == null)
{
return;
}
var braces = provider.BufferBraces.GetBracePairFromPosition(bufferPos, mode);
if (braces == null)
{
return;
}
SnapshotPoint opening = braces.Item1.ToPoint(bufferPos.Snapshot);
SnapshotPoint closing = braces.Item2.ToPoint(bufferPos.Snapshot);
if (RainbowProvider.TryMapToView(view, opening, out opening) &&
RainbowProvider.TryMapToView(view, closing, out closing))
{
RainbowHighlight highlight = RainbowHighlight.Get(view);
if (highlight != null)
{
highlight.Start(opening, closing, braces.Item1.Depth);
}
}
}