public void SetSnapshotAndUpdate(ITextSnapshot snapshot, IList <ITextViewLine> newOrReformattedLines, IList <ITextViewLine> translatedLines)
{
if (_glyphs.Count > 0)
{
// Go through all the existing visuals and invalidate or transform as appropriate.
Dictionary <UIElement, GlyphData> newVisuals = new Dictionary <UIElement, GlyphData>(_glyphs.Count);
foreach (var glyph in _glyphs)
{
GlyphData data = glyph.Value;
if (!data.VisualSpan.HasValue)
{
newVisuals[glyph.Key] = data;
}
else
{
data.SetSnapshot(snapshot);
SnapshotSpan span = data.VisualSpan.Value;
if ((!_margin.TextView.TextViewLines.IntersectsBufferSpan(span)) ||
(GetStartingLine(newOrReformattedLines, span, returnLastLine: false) != null))
{
//Either visual is no longer visible or it crosses a line
//that was reformatted.
_canvas.Children.Remove(data.Element);
}
else
{
newVisuals[data.Element] = data;
ITextViewLine line = GetStartingLine(translatedLines, span, returnLastLine: true);
if (line != null)
{
data.SetTop(line.Top - _margin.TextView.ViewportTop);
}
}
}
}
_glyphs = newVisuals;
}
}
public void AddGlyph(string text, SnapshotSpan span)
{
IWpfTextViewLineCollection lines = _margin.TextView.TextViewLines;
bool visible = _margin.TextView.TextViewLines.IntersectsBufferSpan(span);
if (visible)
{
ITextViewLine line = GetStartingLine(lines, span, returnLastLine: true);
if (line != null)
{
UIElement element = CreatePromptElement(text);
element.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
double leftPlacement = (17.0 - element.DesiredSize.Width) / 2;
Canvas.SetLeft(element, leftPlacement);
GlyphData data = new GlyphData(span, element);
data.SetTop(line.TextTop - _margin.TextView.ViewportTop);
_glyphs[element] = data;
_canvas.Children.Add(element);
}
}
}
public void AddGlyph(string text, SnapshotSpan span)
{
IWpfTextViewLineCollection lines = _margin.TextView.TextViewLines;
bool visible = _margin.TextView.TextViewLines.IntersectsBufferSpan(span);
if (visible) {
ITextViewLine line = GetStartingLine(lines, span, returnLastLine: true);
if (line != null) {
UIElement element = CreatePromptElement(text);
element.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
double leftPlacement = (17.0 - element.DesiredSize.Width) / 2;
Canvas.SetLeft(element, leftPlacement);
GlyphData data = new GlyphData(span, element);
data.SetTop(line.TextTop - _margin.TextView.ViewportTop);
_glyphs[element] = data;
_canvas.Children.Add(element);
}
}
}