public void SetLine(HexViewLine line, double width)
{
if (line == null)
{
throw new ArgumentNullException(nameof(line));
}
var newRect = new Rect(PEN_THICKNESS / 2, PEN_THICKNESS / 2, Math.Max(0, width - PEN_THICKNESS), Math.Max(0, line.TextHeight + HexFormattedLineImpl.DEFAULT_BOTTOM_SPACE - PEN_THICKNESS));
if (geometry != null && newRect == geometryRect)
{
return;
}
geometryRect = newRect;
if (geometryRect.Height == 0 || geometryRect.Width == 0)
{
geometry = null;
}
else
{
geometry = new RectangleGeometry(geometryRect);
if (geometry.CanFreeze)
{
geometry.Freeze();
}
}
InvalidateVisual();
}
bool IsSelected(AdornmentTagInfo adornmentInfo, HexViewLine line)
{
if (line == null)
{
return(false);
}
if (wpfHexView.Selection.IsEmpty)
{
return(false);
}
if (adornmentInfo.HexTagSpan != null)
{
foreach (var span in wpfHexView.Selection.SelectedSpans)
{
if (span.Contains(adornmentInfo.BufferSpan))
{
return(true);
}
}
}
else
{
foreach (var span in wpfHexView.Selection.GetSelectionOnHexViewLine(line))
{
if (span.Contains(adornmentInfo.HexTextTagSpan.Span))
{
return(true);
}
}
}
return(false);
}
public static bool IsVisible(this HexViewLine line)
{
if (line is null)
{
throw new ArgumentNullException(nameof(line));
}
return(line.VisibilityState == VSTF.VisibilityState.FullyVisible || line.VisibilityState == VSTF.VisibilityState.PartiallyVisible);
}
public static bool IsFirstDocumentLine(this HexViewLine line)
{
if (line is null)
{
throw new ArgumentNullException(nameof(line));
}
return(line.BufferLine.LineNumber == 0);
}
public static bool IsLastDocumentLine(this HexViewLine line)
{
if (line is null)
{
throw new ArgumentNullException(nameof(line));
}
return(line.BufferLine.LineNumber + 1 == line.BufferLine.LineProvider.LineCount);
}
void UpdateAdornmentUIState(HexViewLine line, AdornmentTagInfo adornmentInfo, VSTF.TextBounds bounds)
{
double verticalScale = line.LineTransform.VerticalScale;
adornmentInfo.TopUIElement.SetScale(verticalScale);
Canvas.SetTop(adornmentInfo.TopUIElement, bounds.TextTop + line.Baseline - verticalScale * adornmentInfo.Tag.Baseline);
Canvas.SetLeft(adornmentInfo.TopUIElement, bounds.Left);
}
void UpdateIsSelected(AdornmentTagInfo adornmentInfo, HexViewLine line)
{
if (line == null)
{
line = wpfHexView.HexViewLines.GetHexViewLineContainingBufferPosition(adornmentInfo.BufferSpan.Start);
}
bool selected = IsSelected(adornmentInfo, line);
VSTE.IntraTextAdornment.SetIsSelected(adornmentInfo.UserUIElement, selected);
}
HexMouseLocation(HexViewLine hexViewLine, int position, Point point)
{
if (hexViewLine == null)
{
throw new ArgumentNullException(nameof(hexViewLine));
}
HexViewLine = hexViewLine;
Position = position;
Point = point;
}
public override VSTF.LineTransform GetLineTransform(HexViewLine line, double yPosition, VSTE.ViewRelativePosition placement)
{
var transform = removeExtraTextLineVerticalPixels ?
new VSTF.LineTransform(0, 0, line.DefaultLineTransform.VerticalScale, line.DefaultLineTransform.Right) :
line.DefaultLineTransform;
foreach (var source in lineTransformSources)
{
transform = VSTF.LineTransform.Combine(transform, source.GetLineTransform(line, yPosition, placement));
}
return(transform);
}
public LineInfo(HexViewLine hexViewLine, List <IconInfo> icons)
{
if (hexViewLine == null)
{
throw new ArgumentNullException(nameof(hexViewLine));
}
if (icons == null)
{
throw new ArgumentNullException(nameof(icons));
}
Line = hexViewLine;
Icons = icons;
}
void AddLine(Dictionary <object, LineInfo> newInfos, HexViewLine line)
{
var wpfLine = line as WpfHexViewLine;
Debug.Assert(wpfLine != null);
if (wpfLine == null)
{
return;
}
var info = new LineInfo(line, CreateIconInfos(wpfLine));
newInfos.Add(line.IdentityTag, info);
foreach (var iconInfo in info.Icons)
{
childCanvases[iconInfo.Order].Children.Add(iconInfo.Element);
}
}
IEnumerable <(HexColumnType type, Rect rect)> GetRectanglePositions(HexViewLine line)
{
var column = wpfHexView.Caret.Position.Position.ActiveColumn;
if (!line.BufferLine.IsColumnPresent(column))
{
yield break;
}
var span = line.BufferLine.GetSpan(column, onlyVisibleCells: false);
var rect = GetBounds(line.GetNormalizedTextBounds(span));
if (rect == null || rect.Value.Width <= 0)
{
yield break;
}
yield return(column, new Rect(rect.Value.X, wpfHexView.ViewportTop, rect.Value.Width, wpfHexView.ViewportHeight));
}
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);
}
public override IEnumerable <VST.Span> GetSelectionOnHexViewLine(HexViewLine line)
{
if (line == null)
{
throw new ArgumentNullException(nameof(line));
}
if (line.BufferLine.LineProvider != HexView.BufferLines)
{
throw new ArgumentException();
}
foreach (var info in line.BufferLine.GetSpans(StreamSelectionSpan, SelectionFlags))
{
if (info.TextSpan.Length != 0)
{
yield return(info.TextSpan);
}
}
}
HexCaretPosition MoveTo(HexViewLine hexLine, double xCoordinate, HexMoveToFlags flags, bool captureVerticalPosition)
{
if (hexLine == null)
{
throw new ArgumentNullException(nameof(hexLine));
}
if (hexLine.BufferLine.LineProvider != hexView.BufferLines)
{
throw new ArgumentException();
}
var linePosition = (flags & HexMoveToFlags.InsertionPosition) != 0 ?
hexLine.GetInsertionLinePositionFromXCoordinate(xCoordinate) :
hexLine.GetVirtualLinePositionFromXCoordinate(xCoordinate);
var posInfo = hexLine.BufferLine.GetLinePositionInfo(linePosition);
if (posInfo.IsValueCellSeparator)
{
var posInfo2 = hexLine.BufferLine.GetLinePositionInfo(hexLine.GetInsertionLinePositionFromXCoordinate(xCoordinate));
if (posInfo2.IsValueCell)
{
posInfo = posInfo2;
}
}
var closestPos = hexLine.BufferLine.GetClosestCellPosition(posInfo, onlyVisibleCells: true);
if (closestPos == null)
{
Debug.Assert(hexView.BufferLines.BufferSpan.Length == 0 || (!IsValuesCaretPresent && !IsAsciiCaretPresent));
closestPos = new HexCellPosition(currentPosition.ActiveColumn, hexLine.BufferStart, 0);
}
SetExplicitPosition(CreateColumnPosition(closestPos.Value));
if ((flags & HexMoveToFlags.CaptureHorizontalPosition) != 0)
{
SavePreferredXCoordinate();
}
if (captureVerticalPosition)
{
SavePreferredYCoordinate();
}
return(Position);
}
IList <VSTF.TextBounds> GetTextBounds(HexViewLine line)
{
if (lineSpan.IsTextSpan)
{
if (lineSpan.TextSpan !.Value.Length == 0)
{
if (line.BufferSpan.Contains(lineSpan.BufferSpan))
{
var bounds = line.GetCharacterBounds(lineSpan.TextSpan.Value.Start);
// It's just a point, so use zero width
bounds = new VSTF.TextBounds(bounds.Leading, bounds.Top, 0, bounds.Height, bounds.TextTop, bounds.TextHeight);
return(new VSTF.TextBounds[] { bounds });
}
return(Array.Empty <VSTF.TextBounds>());
}
else
{
return(line.GetNormalizedTextBounds(lineSpan));
}
}
Rect GetCaretRect(HexViewLine line, bool drawOverwriteMode, HexColumnType column, HexCell cell, int cellPosition)
{
if (cell == null)
{
return(new Rect());
}
int linePosition = cell.CellSpan.Start + Math.Max(0, Math.Min(cell.CellSpan.Length - 1, cellPosition));
if (hexCaret.CurrentPosition.ActiveColumn != column)
{
var r = ToRect(line.GetNormalizedTextBounds(cell.CellSpan));
return(new Rect(r.X, r.Bottom - INACTIVE_CARET_HEIGHT, r.Width, INACTIVE_CARET_HEIGHT));
}
else if (drawOverwriteMode)
{
var textBounds = line.GetExtendedCharacterBounds(linePosition);
var left = textBounds.Left;
var top = line.TextTop;
var width = textBounds.Width;
var height = line.TextHeight;
return(new Rect(left, top, width, height));
}
else
{
double left;
if (linePosition != 0 && linePosition <= line.BufferLine.Text.Length)
{
left = line.GetExtendedCharacterBounds(linePosition - 1).Trailing;
}
else
{
left = line.GetExtendedCharacterBounds(linePosition).Leading;
}
var top = line.TextTop;
var width = SystemParameters.CaretWidth;
var height = line.TextHeight;
return(new Rect(left, top, width, height));
}
}
/// <summary> /// Selects the line /// </summary> /// <param name="viewLine">Line</param> /// <param name="extendSelection">true to extend the selection</param> public abstract void SelectLine(HexViewLine viewLine, bool extendSelection);
/// <summary> /// Gets the slection on a line /// </summary> /// <param name="line">Line</param> /// <returns></returns> public abstract IEnumerable <VST.Span> GetSelectionOnHexViewLine(HexViewLine line);
public override HexCaretPosition MoveTo(HexViewLine hexLine, double xCoordinate, HexMoveToFlags flags) => MoveTo(hexLine, xCoordinate, flags, true);
public override HexCaretPosition MoveTo(HexViewLine hexLine, double xCoordinate) => MoveTo(hexLine, xCoordinate, HexMoveToFlags.CaptureHorizontalPosition, true);
public override HexCaretPosition MoveTo(HexViewLine hexLine) => MoveTo(hexLine, preferredXCoordinate, HexMoveToFlags.None, true);
/// <summary> /// Moves the caret to a new position /// </summary> /// <param name="hexLine">Line</param> /// <param name="xCoordinate">X coordinate</param> /// <returns></returns> public abstract HexCaretPosition MoveTo(HexViewLine hexLine, double xCoordinate);
public LineInfo(HexViewLine hexViewLine, List <IconInfo> icons)
{
Line = hexViewLine ?? throw new ArgumentNullException(nameof(hexViewLine));
Icons = icons ?? throw new ArgumentNullException(nameof(icons));
}
/// <summary> /// Moves the caret to a new position /// </summary> /// <param name="hexLine">Line</param> /// <returns></returns> public abstract HexCaretPosition MoveTo(HexViewLine hexLine);
/// <summary> /// Move caret to a line /// </summary> /// <param name="hexLine">Line</param> /// <param name="horizontalOffset">Horizontal offset</param> /// <param name="extendSelection">true to extend the selection</param> public void MoveCaret(HexViewLine hexLine, double horizontalOffset, bool extendSelection) => MoveCaret(hexLine, horizontalOffset, extendSelection, HexMoveToFlags.CaptureHorizontalPosition);
/// <summary> /// Move caret to a line /// </summary> /// <param name="hexLine">Line</param> /// <param name="horizontalOffset">Horizontal offset</param> /// <param name="extendSelection">true to extend the selection</param> /// <param name="flags">Flags</param> public abstract void MoveCaret(HexViewLine hexLine, double horizontalOffset, bool extendSelection, HexMoveToFlags flags);
/// <summary> /// Moves the caret to a new position /// </summary> /// <param name="hexLine">Line</param> /// <param name="xCoordinate">X coordinate</param> /// <param name="flags">Flags</param> /// <returns></returns> public abstract HexCaretPosition MoveTo(HexViewLine hexLine, double xCoordinate, HexMoveToFlags flags);