void PositionLineElement()
{
if (!selectionIsEmpty || !enabled)
{
adornmentLayer?.RemoveAllAdornments();
return;
}
var line = wpfHexView.Caret.ContainingHexViewLine;
if (line.IsVisible())
{
if (adornmentLayer.IsEmpty)
{
adornmentLayer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, null, currentLineHighlighterElement, null);
}
Canvas.SetLeft(currentLineHighlighterElement, wpfHexView.ViewportLeft);
Canvas.SetTop(currentLineHighlighterElement, line.TextTop);
currentLineHighlighterElement.SetLine(line, wpfHexView.ViewportWidth);
}
else
{
adornmentLayer.RemoveAllAdornments();
}
}
public TextLayer(HexAdornmentLayer adornmentLayer)
{
if (adornmentLayer == null)
{
throw new ArgumentNullException(nameof(adornmentLayer));
}
lines = new List <LineInfo>();
adornmentLayer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, null, this, null);
}
void CreateMarkerElement(HexBufferSpan fullSpan, Geometry geo)
{
Debug.Assert(markerElement == null);
RemoveAllAdornments();
markerElement = new MarkerElement(geo);
markerElement.BackgroundBrush = backgroundBrush;
if (!layer.AddAdornment(VSTE.AdornmentPositioningBehavior.TextRelative, fullSpan, null, markerElement, markerElementRemovedCallBack))
{
OnMarkerElementRemoved();
}
}
bool AddAdornment(AdornmentTagInfo adornmentInfo, HexViewLine line)
{
SizeChangedEventHandler sizeChanged = (a, e) => {
var bounds = line.GetAdornmentBounds(adornmentInfo);
if (bounds == null)
{
return;
}
// Sometimes the size just gets changed very little, eg. from 400 to 399.95.....
const double d = 0.5;
if (e.NewSize.Height <= bounds.Value.Height + d && e.NewSize.Width <= bounds.Value.Width + d)
{
return;
}
tagger?.RefreshSpans(new HexBufferSpanEventArgs(adornmentInfo.BufferSpan));
};
adornmentInfo.TopUIElement.SizeChanged += sizeChanged;
VSTE.AdornmentRemovedCallback removedCallback = (a, b) => {
adornmentTagInfos.Remove(adornmentInfo);
adornmentInfo.TopUIElement.SizeChanged -= sizeChanged;
adornmentInfo.TopUIElement.OnRemoved();
if (adornmentInfo.HexTagSpan != null)
{
adornmentInfo.HexTagSpan.Tag.RemovalCallback?.Invoke(adornmentInfo.HexTagSpan, b);
}
else
{
adornmentInfo.HexTextTagSpan.Tag.RemovalCallback?.Invoke(adornmentInfo.HexTextTagSpan, b);
}
};
Debug.Assert(!adornmentTagInfos.Contains(adornmentInfo));
adornmentTagInfos.Add(adornmentInfo);
// Use OwnerControlled because there are corner cases that the adornment layer can't handle,
// eg. an adornment with buffer span length == 0 that is shown on its own line (word wrap).
bool added = layer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, adornmentInfo, adornmentInfo.TopUIElement, removedCallback);
if (!added)
{
removedCallback(null, adornmentInfo.TopUIElement);
}
return(added);
}
void RecreateColumnLines()
{
delayRecreateColumnLinesCalled = false;
if (wpfHexView.IsClosed)
{
return;
}
RemoveAllLines();
if (!enabled)
{
return;
}
if (wpfHexView.ViewportHeight == 0)
{
return;
}
var line = wpfHexView.HexViewLines.FirstVisibleLine;
var top = wpfHexView.ViewportTop;
var bottom = wpfHexView.ViewportBottom;
foreach (var info in GetColumnPositions(line.BufferLine))
{
var lineKind = GetColumnLineKind(info.Key);
if (lineKind == HexColumnLineKind.None)
{
continue;
}
var props = editorFormatMap.GetProperties(classificationTypeNames[(int)info.Key]);
var pen = GetPen(props, lineKind);
var bounds = line.GetCharacterBounds(info.Value);
var x = Math.Round(bounds.Left + bounds.Width / 2 - PEN_THICKNESS / 2) + 0.5;
var lineElem = new LineElement(info.Key, x, top, bottom, pen);
bool added = adornmentLayer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, null, lineElem, null);
if (added)
{
lineElements.Add(lineElem);
}
}
latestBufferLines = wpfHexView.BufferLines;
}
void RecreateRectangles()
{
delayRecreateRectanglesCalled = false;
if (wpfHexView.IsClosed)
{
return;
}
RemoveAllRectangles();
if (!enabled)
{
return;
}
if (wpfHexView.ViewportHeight == 0)
{
return;
}
var line = wpfHexView.HexViewLines.FirstVisibleLine;
var top = wpfHexView.ViewportTop;
var bottom = wpfHexView.ViewportBottom;
foreach (var info in GetRectanglePositions(line))
{
var props = editorFormatMap.GetProperties(GetClassificationTypeName(info.type));
var bgBrush = GetBackgroundBrush(props);
if (bgBrush == null || TWPF.BrushComparer.Equals(bgBrush, Brushes.Transparent))
{
continue;
}
var lineElem = new RectangleElement(info.type, info.rect, bgBrush, null);
bool added = adornmentLayer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, null, lineElem, null);
if (added)
{
rectangleElements.Add(lineElem);
}
}
latestBufferLines = wpfHexView.BufferLines;
}
void AddAdornment() => layer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, null, this, null);
protected override void AddImageToAdornmentLayerCore(Image image) => adornmentLayer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, null, image, null);