HexBufferPoint Filter(HexBufferPoint position) {
if (position < HexView.BufferLines.BufferStart)
return HexView.BufferLines.BufferStart;
if (position > HexView.BufferLines.BufferEnd)
return HexView.BufferLines.BufferEnd;
return position;
}
/// <summary>
/// Finds the pattern
/// </summary>
/// <param name="searchRange">Search range</param>
/// <param name="startingPosition">Starting position</param>
/// <param name="options">Options</param>
/// <param name="cancellationToken">Cancellation token</param>
/// <returns></returns>
public HexBufferSpan?Find(HexBufferSpan searchRange, HexBufferPoint startingPosition, HexFindOptions options, CancellationToken cancellationToken)
{
foreach (var span in FindAll(searchRange, startingPosition, options, cancellationToken))
{
return(span);
}
return(null);
}
public FindAllCoreEnumerable(ByteHexSearchService owner, HexBufferSpan searchRange, HexBufferPoint startingPosition, HexFindOptions options, CancellationToken cancellationToken)
{
this.owner = owner;
this.searchRange = searchRange;
this.startingPosition = startingPosition;
this.options = options;
this.cancellationToken = cancellationToken;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="position">Position</param>
/// <param name="data">Data</param>
public PositionAndData(HexBufferPoint position, byte[] data) {
if (position.IsDefault)
throw new ArgumentException();
if (data == null)
throw new ArgumentNullException(nameof(data));
Position = position;
Data = data;
}
public override double GetCoordinateAtBufferPosition(HexBufferPoint bufferPosition) {
if (bufferPosition.IsDefault)
throw new ArgumentException();
if (bufferPosition.Buffer != HexView.Buffer)
throw new ArgumentException();
if (!HexView.BufferLines.IsValidPosition(bufferPosition))
throw new ArgumentOutOfRangeException(nameof(bufferPosition));
return Start + HexView.BufferLines.GetLineNumberFromPosition(bufferPosition).ToUInt64();
}
/// <summary>
/// Finds the pattern
/// </summary>
/// <param name="startingPosition">Starting position</param>
/// <param name="options">Options</param>
/// <param name="cancellationToken">Cancellation token</param>
/// <returns></returns>
public HexBufferSpan?Find(HexBufferPoint startingPosition, HexFindOptions options, CancellationToken cancellationToken)
{
if (startingPosition.IsDefault)
{
throw new ArgumentException();
}
var buffer = startingPosition.Buffer;
return(Find(new HexBufferSpan(buffer, buffer.Span), startingPosition, options, cancellationToken));
}
public override void Select(HexBufferPoint anchorPoint, HexBufferPoint activePoint, bool alignPoints)
{
if (anchorPoint.Buffer != activePoint.Buffer)
{
throw new ArgumentException();
}
if (anchorPoint.Buffer != HexView.Buffer)
{
throw new ArgumentException();
}
if (anchorPoint == activePoint)
{
Clear();
return;
}
ActivationTracksFocus = true;
if (alignPoints && HexView.Caret.Position.Position.ActiveColumn == HexColumnType.Values)
{
var bufferLines = HexView.BufferLines;
if (bufferLines.BytesPerValue != 1)
{
Debug.Assert(anchorPoint != activePoint);
if (anchorPoint < activePoint)
{
var anchorCell = GetCell(bufferLines, anchorPoint);
var activeCell = GetCell(bufferLines, activePoint - 1);
if (anchorCell != null && activeCell != null)
{
anchorPoint = anchorCell.BufferStart;
activePoint = activeCell.BufferEnd;
}
}
else
{
var activeCell = GetCell(bufferLines, activePoint);
var anchorCell = GetCell(bufferLines, anchorPoint - 1);
if (anchorCell != null && activeCell != null)
{
activePoint = activeCell.BufferStart;
anchorPoint = anchorCell.BufferEnd;
}
}
}
}
bool sameSelection = this.anchorPoint == anchorPoint && this.activePoint == activePoint;
if (!sameSelection)
{
this.anchorPoint = anchorPoint;
this.activePoint = activePoint;
SelectionChanged?.Invoke(this, EventArgs.Empty);
}
}
public HexFormattedLine FindFormattedLineByBufferPosition(HexBufferPoint point) {
if (isDisposed)
throw new ObjectDisposedException(nameof(PhysicalLineCache));
for (int i = 0; i < cache.Count; i++) {
var physLine = cache[i];
var line = physLine.FindFormattedLineByBufferPosition(point);
if (line != null)
return line;
}
return null;
}
HexCellPosition CreateValuesCellPosition(HexBufferPoint position)
{
var line = hexView.BufferLines.GetLineFromPosition(position);
var cell = line.ValueCells.GetCell(position);
if (cell == null)
{
return(new HexCellPosition(HexColumnType.Values, position, 0));
}
return(new HexCellPosition(HexColumnType.Values, cell.BufferStart, 0));
}
public bool Contains(HexBufferPoint point) {
if (disposed)
throw new ObjectDisposedException(nameof(PhysicalLine));
if (point.Buffer != BufferSpan.Buffer)
throw new ArgumentException();
if (point < BufferSpan.Start)
return false;
if (IsLastLine)
return point <= BufferSpan.End;
return point < BufferSpan.End;
}
static HexCell GetCell(HexBufferLineFormatter bufferLines, HexBufferPoint position)
{
var line = bufferLines.GetLineFromPosition(position);
var cell = line.ValueCells.GetCell(position);
if (cell == null && position == line.BufferEnd && position > line.BufferStart)
{
cell = line.ValueCells.GetCell(position - 1);
}
return(cell);
}
public override void Clear()
{
bool isEmpty = IsEmpty;
ActivationTracksFocus = true;
anchorPoint = activePoint;
if (!isEmpty)
{
SelectionChanged?.Invoke(this, EventArgs.Empty);
}
}
HexCellPosition CreateValuePositionLastCellCharacter(HexBufferPoint position)
{
var line = hexView.BufferLines.GetLineFromPosition(position);
var cell = line.ValueCells.GetCell(position);
if (cell == null)
{
return(new HexCellPosition(HexColumnType.Values, position, 0));
}
return(new HexCellPosition(HexColumnType.Values, position, cell.CellSpan.Length - 1));
}
HexBufferPoint Filter(HexBufferPoint position)
{
if (position < HexView.BufferLines.BufferStart)
{
return(HexView.BufferLines.BufferStart);
}
if (position > HexView.BufferLines.BufferEnd)
{
return(HexView.BufferLines.BufferEnd);
}
return(position);
}
public PositionAndData?Edit(HexBufferPoint position, int cellPosition, char c)
{
if (position.IsDefault)
{
return(null);
}
if ((uint)cellPosition >= (uint)FormattedLength)
{
return(null);
}
return(EditCore(position, cellPosition, c));
}
void GetSelectionOrCaretIfNoSelection(out HexBufferPoint anchorPoint, out HexBufferPoint activePoint) {
if (!Selection.IsEmpty) {
anchorPoint = Selection.AnchorPoint;
activePoint = Selection.ActivePoint;
if (anchorPoint > activePoint)
anchorPoint = anchorPoint - 1;
}
else {
anchorPoint = ActiveCaretBufferPosition;
activePoint = anchorPoint;
}
}
public HexFormattedLine FindFormattedLineByBufferPosition(HexBufferPoint point) {
if (disposed)
throw new ObjectDisposedException(nameof(PhysicalLine));
if (point.Buffer != BufferSpan.Buffer)
throw new ArgumentException();
if (!Contains(point))
return null;
foreach (var line in Lines) {
if (point <= line.BufferStart || line.ContainsBufferPosition(point))
return line;
}
return Lines[Lines.Length - 1];
}
void GetSelectionOrCaretIfNoSelection(out HexBufferPoint start, out HexBufferPoint end)
{
if (!wpfHexView.Selection.IsEmpty)
{
start = wpfHexView.Selection.Start;
end = wpfHexView.Selection.End;
}
else
{
start = wpfHexView.Caret.Position.Position.ActivePosition.BufferPosition;
end = start;
}
}
bool MoveTo(HexBufferPoint start, HexBufferPoint end, HexBufferPoint caret)
{
if (!HexView.BufferLines.IsValidPosition(start) || !HexView.BufferLines.IsValidPosition(end) || !HexView.BufferLines.IsValidPosition(caret))
{
return(false);
}
HexView.Caret.MoveTo(caret);
var flags = HexView.Caret.Position.Position.ActiveColumn == HexColumnType.Values ? HexSpanSelectionFlags.Values : HexSpanSelectionFlags.Ascii;
var span = start <= end ? new HexBufferSpan(start, end) : new HexBufferSpan(end, start);
HexView.ViewScroller.EnsureSpanVisible(span, flags, VSTE.EnsureSpanVisibleOptions.ShowStart);
HexView.Selection.Clear();
return(true);
}
public override double GetCoordinateAtBufferPosition(HexBufferPoint bufferPosition)
{
if (bufferPosition.IsDefault)
{
throw new ArgumentException();
}
if (bufferPosition.Buffer != HexView.Buffer)
{
throw new ArgumentException();
}
if (!HexView.BufferLines.IsValidPosition(bufferPosition))
{
throw new ArgumentOutOfRangeException(nameof(bufferPosition));
}
return(Start + HexView.BufferLines.GetLineNumberFromPosition(bufferPosition).ToUInt64());
}
public HexFormattedLine FindFormattedLineByBufferPosition(HexBufferPoint point)
{
if (isDisposed)
{
throw new ObjectDisposedException(nameof(PhysicalLineCache));
}
for (int i = 0; i < cache.Count; i++)
{
var physLine = cache[i];
var line = physLine.FindFormattedLineByBufferPosition(point);
if (line != null)
{
return(line);
}
}
return(null);
}
void InitializeState(HexViewUIState state)
{
if (IsValid(state))
{
HexView.Options.SetOptionValue(DefaultHexViewOptions.ShowOffsetColumnId, state.ShowOffsetColumn);
HexView.Options.SetOptionValue(DefaultHexViewOptions.ShowValuesColumnId, state.ShowValuesColumn);
HexView.Options.SetOptionValue(DefaultHexViewOptions.ShowAsciiColumnId, state.ShowAsciiColumn);
HexView.Options.SetOptionValue(DefaultHexViewOptions.StartPositionId, state.StartPosition);
HexView.Options.SetOptionValue(DefaultHexViewOptions.EndPositionId, state.EndPosition);
HexView.Options.SetOptionValue(DefaultHexViewOptions.BasePositionId, state.BasePosition);
HexView.Options.SetOptionValue(DefaultHexViewOptions.UseRelativePositionsId, state.UseRelativePositions);
HexView.Options.SetOptionValue(DefaultHexViewOptions.OffsetBitSizeId, state.OffsetBitSize);
HexView.Options.SetOptionValue(DefaultHexViewOptions.HexValuesDisplayFormatId, state.HexValuesDisplayFormat);
HexView.Options.SetOptionValue(DefaultHexViewOptions.BytesPerLineId, state.BytesPerLine);
HexView.ViewportLeft = state.ViewportLeft;
HexView.DisplayHexLineContainingBufferPosition(new HexBufferPoint(HexView.Buffer, state.TopLinePosition), state.TopLineVerticalDistance, VSTE.ViewRelativePosition.Top, null, null, DisplayHexLineOptions.CanRecreateBufferLines);
var valuesPos = new HexCellPosition(HexColumnType.Values, new HexBufferPoint(HexView.Buffer, state.ValuesPosition), state.ValuesCellPosition);
var asciiPos = new HexCellPosition(HexColumnType.Ascii, new HexBufferPoint(HexView.Buffer, state.AsciiPosition), 0);
var newPos = new HexColumnPosition(state.ActiveColumn, valuesPos, asciiPos);
// BufferLines could've been recreated, re-verify the new position
if (HexView.BufferLines.IsValidPosition(newPos.ValuePosition.BufferPosition) && HexView.BufferLines.IsValidPosition(newPos.AsciiPosition.BufferPosition))
{
HexView.Caret.MoveTo(newPos);
}
var anchorPoint = new HexBufferPoint(HexView.Buffer, state.AnchorPoint);
var activePoint = new HexBufferPoint(HexView.Buffer, state.ActivePoint);
if (HexView.BufferLines.IsValidPosition(anchorPoint) && HexView.BufferLines.IsValidPosition(activePoint))
{
HexView.Selection.Select(anchorPoint, activePoint, alignPoints: false);
}
else
{
HexView.Selection.Clear();
}
}
else
{
HexView.Caret.MoveTo(HexView.BufferLines.BufferStart);
HexView.Selection.Clear();
}
}
public override WpfHexViewLine GetWpfHexViewLineContainingBufferPosition(HexBufferPoint bufferPosition)
{
if (!IsValid)
{
throw new ObjectDisposedException(nameof(WpfHexViewLineCollectionImpl));
}
if (bufferPosition.Buffer != hexView.Buffer)
{
throw new ArgumentException();
}
foreach (var line in lines)
{
if (line.ContainsBufferPosition(bufferPosition))
{
return(line);
}
}
return(null);
}
PhysicalLine GetPhysicalLine(HexBufferPoint point)
{
foreach (var line in oldLines)
{
if (line.Contains(point))
{
return(line);
}
}
var result = CreatePhysicalLineNoCache(bufferLines, formattedLineSource, point);
foreach (var line in result.Lines)
{
toPhysicalLine[line] = result;
}
oldLines.Add(result);
return(result);
}
public override HexToolTipInfoCollection GetToolTipInfo(HexBufferPoint position)
{
if (position.IsDefault)
{
throw new ArgumentException();
}
if (position > HexPosition.MaxEndPosition)
{
throw new ArgumentOutOfRangeException(nameof(position));
}
if (hexView.IsClosed)
{
return(null);
}
if (position >= HexPosition.MaxEndPosition)
{
return(null);
}
return(TryCreateToolTipInfoCollection(position, tagAggregator.GetTags(new HexBufferSpan(position, 1)).ToArray()));
}
public override bool ContainsBufferPosition(HexBufferPoint bufferPosition)
{
if (!IsValid)
{
throw new ObjectDisposedException(nameof(WpfHexViewLineCollectionImpl));
}
if (bufferPosition.Buffer != hexView.Buffer)
{
throw new ArgumentException();
}
if (FormattedSpan.Contains(bufferPosition))
{
return(true);
}
if (lines.Count > 0 && lines[lines.Count - 1].ContainsBufferPosition(bufferPosition))
{
return(true);
}
return(false);
}
public override bool ContainsBufferPosition(HexBufferPoint bufferPosition)
{
if (!IsValid)
{
throw new ObjectDisposedException(nameof(HexFormattedLineImpl));
}
if (bufferPosition.Buffer != Buffer)
{
throw new ArgumentException();
}
if (!(BufferStart <= bufferPosition))
{
return(false);
}
if (IsLastVisualLine)
{
return(bufferPosition <= BufferEnd);
}
return(bufferPosition < BufferEnd);
}
public bool Contains(HexBufferPoint point)
{
if (disposed)
{
throw new ObjectDisposedException(nameof(PhysicalLine));
}
if (point.Buffer != BufferSpan.Buffer)
{
throw new ArgumentException();
}
if (point < BufferSpan.Start)
{
return(false);
}
if (IsLastLine)
{
return(point <= BufferSpan.End);
}
return(point < BufferSpan.End);
}
public override HexCaretPosition MoveTo(HexColumnType column, HexBufferPoint position, HexMoveToFlags flags)
{
if (column != HexColumnType.Values && column != HexColumnType.Ascii)
{
throw new ArgumentOutOfRangeException(nameof(column));
}
if (position.IsDefault)
{
throw new ArgumentException();
}
if (!hexView.BufferLines.IsValidPosition(position))
{
throw new ArgumentOutOfRangeException(nameof(position));
}
var cellPos = column == HexColumnType.Values ? CreateValuesCellPosition(position) : new HexCellPosition(column, position, 0);
var colPos = CreateColumnPosition(cellPos);
return(MoveTo(colPos, flags));
}
public override void GoToPosition()
{
var curr = HexView.BufferLines.ToLogicalPosition(HexView.Caret.Position.Position.ActivePosition.BufferPosition);
var minPos = HexView.BufferLines.ToLogicalPosition(HexView.BufferLines.StartPosition);
var maxPos = HexView.BufferLines.ToLogicalPosition(HexView.BufferLines.EndPosition);
if (HexView.BufferLines.BufferSpan.IsEmpty)
{
}
else if (maxPos == HexPosition.Zero)
{
maxPos = HexPosition.MaxEndPosition - 1;
}
else
{
maxPos = maxPos - 1;
}
var data = new GoToPositionVM(curr, minPos, maxPos);
var win = new GoToPositionDlg();
win.DataContext = data;
win.Owner = OwnerWindow;
if (HexView.Buffer.IsMemory)
{
win.Title = dnSpy_Resources.GoToOffset_Title_Address;
win.offsetLabel.Content = dnSpy_Resources.GoToOffset_Address_Label;
}
else
{
win.Title = dnSpy_Resources.GoToOffset_Title;
win.offsetLabel.Content = dnSpy_Resources.GoToOffset_Offset_Label;
}
if (win.ShowDialog() != true)
{
return;
}
var newPos = new HexBufferPoint(HexView.Buffer, HexView.BufferLines.ToPhysicalPosition(data.OffsetVM.Value));
MoveTo(newPos, newPos, newPos);
}
protected PositionAndData?EditBit(HexBufferPoint position, int cellPosition, char c)
{
int newBit = ConvertFromBitCharacter(c);
if (newBit < 0)
{
return(null);
}
var dataPos = position.Position + cellPosition / 8;
if (dataPos >= HexPosition.MaxEndPosition)
{
return(null);
}
int bitNo = (8 - (cellPosition & 7) - 1) & 7;
var newData = new byte[1];
newData[0] = position.Buffer.ReadByte(dataPos);
newData[0] = (byte)((newData[0] & ~(1 << bitNo)) | (newBit << bitNo));
return(new PositionAndData(new HexBufferPoint(position.Buffer, dataPos), newData));
}
public HexFormattedLine?FindFormattedLineByBufferPosition(HexBufferPoint point)
{
if (disposed)
{
throw new ObjectDisposedException(nameof(PhysicalLine));
}
if (point.Buffer != BufferSpan.Buffer)
{
throw new ArgumentException();
}
if (!Contains(point))
{
return(null);
}
foreach (var line in Lines)
{
if (point <= line.BufferStart || line.ContainsBufferPosition(point))
{
return(line);
}
}
return(Lines[Lines.Length - 1]);
}
protected override PositionAndData? EditCore(HexBufferPoint position, int cellPosition, char c) => EditBit(position, cellPosition, c);
protected override PositionAndData? EditCore(HexBufferPoint position, int cellPosition, char c) => EditSignedHexBigEndian(position, cellPosition, c);
void GetSelectionOrCaretIfNoSelection(out HexBufferPoint start, out HexBufferPoint end) {
if (!wpfHexView.Selection.IsEmpty) {
start = wpfHexView.Selection.Start;
end = wpfHexView.Selection.End;
}
else {
start = wpfHexView.Caret.Position.Position.ActivePosition.BufferPosition;
end = start;
}
}
public override HexBufferLine GetLineFromPosition(HexBufferPoint position) {
position = FilterAndVerify(position);
ResetBuilderFields();
var linePosition = startPosition + (position.Position - startPosition).ToUInt64() / bytesPerLine * bytesPerLine;
var lineEnd = HexPosition.Min(linePosition + bytesPerLine, endPosition);
var lineSpan = HexSpan.FromBounds(linePosition, lineEnd);
var logicalOffset = ToLogicalPosition(lineSpan.Start);
var hexBytes = buffer.ReadHexBytes(lineSpan.Start, (long)lineSpan.Length.ToUInt64());
var offsetSpan = default(VST.Span);
var fullValuesSpan = default(VST.Span);
var visibleValuesSpan = default(VST.Span);
var fullAsciiSpan = default(VST.Span);
var visibleAsciiSpan = default(VST.Span);
var valueCells = Array.Empty<HexCell>();
var asciiCells = Array.Empty<HexCell>();
bool needSep = false;
foreach (var column in columnOrder) {
switch (column) {
case HexColumnType.Offset:
if (showOffset) {
if (needSep)
stringBuilder.Append(' ');
needSep = true;
WriteOffset(logicalOffset, out offsetSpan);
}
break;
case HexColumnType.Values:
if (showValues) {
if (needSep)
stringBuilder.Append(' ');
needSep = true;
valueCells = WriteValues(hexBytes, lineSpan, out fullValuesSpan, out visibleValuesSpan);
}
break;
case HexColumnType.Ascii:
if (showAscii) {
if (needSep)
stringBuilder.Append(' ');
needSep = true;
asciiCells = WriteAscii(hexBytes, lineSpan, out fullAsciiSpan, out visibleAsciiSpan);
}
break;
default:
throw new InvalidOperationException();
}
}
var text = stringBuilder.ToString();
if (text.Length != CharsPerLine)
throw new InvalidOperationException();
var valueCellColl = valueCells.Length == 0 ? HexCellCollection.Empty : new HexCellCollection(valueCells);
var asciiCellColl = asciiCells.Length == 0 ? HexCellCollection.Empty : new HexCellCollection(asciiCells);
var lineNumber = GetLineNumberFromPosition(new HexBufferPoint(Buffer, lineSpan.Start));
var res = new HexBufferLineImpl(this, lineNumber, columnOrder, new HexBufferSpan(buffer, lineSpan), hexBytes, text, showOffset, showValues, showAscii, logicalOffset, valueCellColl, asciiCellColl, offsetSpan, fullValuesSpan, visibleValuesSpan, fullAsciiSpan, visibleAsciiSpan);
ResetBuilderFields();
return res;
}
protected PositionAndData? EditBit(HexBufferPoint position, int cellPosition, char c) {
int newBit = ConvertFromBitCharacter(c);
if (newBit < 0)
return null;
var dataPos = position.Position + cellPosition / 8;
if (dataPos >= HexPosition.MaxEndPosition)
return null;
int bitNo = (8 - (cellPosition & 7) - 1) & 7;
var newData = new byte[1];
newData[0] = position.Buffer.ReadByte(dataPos);
newData[0] = (byte)((newData[0] & ~(1 << bitNo)) | (newBit << bitNo));
return new PositionAndData(new HexBufferPoint(position.Buffer, dataPos), newData);
}
public override void DisplayHexLineContainingBufferPosition(HexBufferPoint bufferPosition, double verticalDistance, VSTE.ViewRelativePosition relativeTo, double? viewportWidthOverride, double? viewportHeightOverride, DisplayHexLineOptions options) => DisplayLines(bufferPosition, verticalDistance, relativeTo, viewportWidthOverride ?? ViewportWidth, viewportHeightOverride ?? ViewportHeight, options, null);
PhysicalLine CreatePhysicalLineNoCache(HexBufferPoint bufferPosition, double viewportWidthOverride) {
if (bufferPosition.Buffer != Buffer)
throw new ArgumentException();
if (formattedLineSourceIsInvalidated)
CreateFormattedLineSource(viewportWidthOverride);
return CreatePhysicalLineNoCache(BufferLines, FormattedLineSource, bufferPosition);
}
/// <summary> /// Displays a line in the view /// </summary> /// <param name="bufferPosition">Position</param> /// <param name="verticalDistance">Distance relative to the top or bottom of the view</param> /// <param name="relativeTo">The <see cref="VSTE.ViewRelativePosition"/></param> /// <param name="viewportWidthOverride">Overrides viewport width</param> /// <param name="viewportHeightOverride">Overrides viewport height</param> /// <param name="options">Options</param> public abstract void DisplayHexLineContainingBufferPosition(HexBufferPoint bufferPosition, double verticalDistance, VSTE.ViewRelativePosition relativeTo, double? viewportWidthOverride, double? viewportHeightOverride, DisplayHexLineOptions options);
/// <summary> /// Gets the fraction of the vertical extent of the view that corresponds to the specified buffer position /// </summary> /// <param name="bufferPosition">Buffer position</param> /// <returns></returns> public abstract double GetFractionAtBufferPosition(HexBufferPoint bufferPosition);
/// <summary> /// Extend selection /// </summary> /// <param name="newEnd">New end position</param> public abstract void ExtendSelection(HexBufferPoint newEnd);
/// <summary> /// Gets the line containing <paramref name="bufferPosition"/> /// </summary> /// <param name="bufferPosition">Buffer position</param> /// <returns></returns> public abstract WpfHexViewLine GetWpfHexViewLineContainingBufferPosition(HexBufferPoint bufferPosition);
/// <summary> /// Gets the fraction of the vertical extent of the view that corresponds to the specified buffer position /// </summary> /// <param name="bufferPosition">Buffer position</param> /// <returns></returns> public abstract double GetFractionAtBufferPosition(HexBufferPoint bufferPosition);
public override HexViewLine GetHexViewLineContainingBufferPosition(HexBufferPoint bufferPosition) => GetWpfHexViewLineContainingBufferPosition(bufferPosition);
/// <summary> /// Selects data and moves the caret /// </summary> /// <param name="column">Column</param> /// <param name="anchorPoint">Anchor position</param> /// <param name="activePoint">Active position</param> /// <param name="alignPoints">true to align the span to include all bytes of the cells</param> public void SelectAndMoveCaret(HexColumnType column, HexBufferPoint anchorPoint, HexBufferPoint activePoint, bool alignPoints) => SelectAndMoveCaret(column, anchorPoint, activePoint, alignPoints, VSTE.EnsureSpanVisibleOptions.MinimumScroll);
public override WpfHexViewLine GetWpfHexViewLineContainingBufferPosition(HexBufferPoint bufferPosition) {
if (IsClosed)
throw new InvalidOperationException();
if (bufferPosition.Buffer != Buffer)
throw new ArgumentException();
foreach (var pline in visiblePhysicalLines) {
var lline = pline.FindFormattedLineByBufferPosition(bufferPosition);
if (lline != null)
return lline;
}
var cachedLine = physicalLineCache.FindFormattedLineByBufferPosition(bufferPosition);
if (cachedLine != null)
return cachedLine;
var physLine = CreatePhysicalLineNoCache(bufferPosition, ViewportWidth);
physicalLineCache.Add(physLine);
var line = physLine.FindFormattedLineByBufferPosition(bufferPosition);
if (line == null)
throw new InvalidOperationException();
return line;
}
public abstract HexToolTipInfoCollection GetToolTipInfo(HexBufferPoint position);
static PhysicalLine CreatePhysicalLineNoCache(HexBufferLineFormatter bufferLines, HexFormattedLineSource formattedLineSource, HexBufferPoint bufferPosition) {
var bufferLine = bufferLines.GetLineFromPosition(bufferPosition);
var formattedLine = formattedLineSource.FormatLineInVisualBuffer(bufferLine);
return new PhysicalLine(new[] { formattedLine });
}
/// <summary> /// Selects data and moves the caret /// </summary> /// <param name="column">Column</param> /// <param name="anchorPoint">Anchor position</param> /// <param name="activePoint">Active position</param> /// <param name="alignPoints">true to align the span to include all bytes of the cells</param> public void SelectAndMoveCaret(HexColumnType column, HexBufferPoint anchorPoint, HexBufferPoint activePoint, bool alignPoints) => SelectAndMoveCaret(column, anchorPoint, activePoint, alignPoints, VSTE.EnsureSpanVisibleOptions.MinimumScroll);
void DisplayLines(HexBufferPoint bufferPosition, double verticalDistance, VSTE.ViewRelativePosition relativeTo, double viewportWidthOverride, double viewportHeightOverride, DisplayHexLineOptions options, double? newViewportTop) {
if (IsClosed)
throw new InvalidOperationException();
var oldBufferLines = hexBufferLineFormatter;
var oldHexBufferLineFormatterOptions = hexBufferLineFormatterOptions;
Debug.Assert(oldBufferLines != null);
bool raiseBufferLinesChangedEvent = false;
bool revalidateBufferPosition = false;
canvas.Dispatcher.VerifyAccess();
if (bufferPosition.Buffer != Buffer)
throw new ArgumentException();
if (relativeTo != VSTE.ViewRelativePosition.Top && relativeTo != VSTE.ViewRelativePosition.Bottom)
throw new ArgumentOutOfRangeException(nameof(relativeTo));
if (viewportHeightOverride < 0 || double.IsNaN(viewportHeightOverride))
throw new ArgumentOutOfRangeException(nameof(viewportHeightOverride));
if (viewportWidthOverride < 0 || double.IsNaN(viewportWidthOverride))
throw new ArgumentOutOfRangeException(nameof(viewportWidthOverride));
bool invalidateAllLines = false;
if (recreateHexBufferLineFormatter)
invalidateAllLines = true;
if (viewportWidthOverride != lastViewportWidth || viewportWidthOverride != lastFormattedLineSourceViewportWidth) {
invalidateAllLines = true;
lastViewportWidth = viewportWidthOverride;
}
// Make sure the scheduled method doesn't try to call this method
delayLayoutLinesInProgress = false;
if (invalidateAllLines) {
invalidatedRegions.Clear();
invalidatedRegions.Add(new HexBufferSpan(new HexBufferPoint(Buffer, 0), new HexBufferPoint(Buffer, HexPosition.MaxEndPosition)));
}
var regionsToInvalidate = new NormalizedHexBufferSpanCollection(invalidatedRegions);
invalidatedRegions.Clear();
if (invalidatedRegions.Capacity > 100)
invalidatedRegions.TrimExcess();
if (invalidateAllLines || formattedLineSourceIsInvalidated) {
CreateFormattedLineSource(viewportWidthOverride);
formattedLineSourceIsInvalidated = false;
recreateHexBufferLineFormatter = true;
}
// This one depends on FormattedLineSource and must be created afterwards
if (recreateHexBufferLineFormatter) {
recreateHexBufferLineFormatter = false;
raiseBufferLinesChangedEvent = true;
if ((options & DisplayHexLineOptions.CanRecreateBufferLines) != 0) {
// It's safe to invalidate it here since we were called by the dispatcher and
// not by user code.
hexBufferLineFormatter = null;
// Once the new instance gets created, the input bufferPosition could be invalid
// because start and/or end got updated. Re-validate it before creating new lines.
revalidateBufferPosition = true;
}
else {
// Don't re-create it here. That can lead to exceptions if Start/End positions get
// updated and bufferPosition becomes invalid. New BufferLines' IsValidPosition() throws.
// It's recreated with a short delay after raising LayoutChanged.
}
}
var lineTransformProvider = LineTransformProvider;
if (InLayout)
throw new InvalidOperationException();
inLayout = true;
var oldVisibleLines = new HashSet<HexViewLine>(wpfHexViewLineCollection == null ? (IEnumerable<HexViewLine>)Array.Empty<HexViewLine>() : wpfHexViewLineCollection);
wpfHexViewLineCollection?.Invalidate();
var layoutHelper = new LayoutHelper(BufferLines, lineTransformProvider, newViewportTop ?? 0, oldVisibleLines, GetValidCachedLines(regionsToInvalidate), FormattedLineSource);
if (revalidateBufferPosition) {
if (bufferPosition < BufferLines.BufferStart) {
bufferPosition = BufferLines.BufferStart;
relativeTo = VSTE.ViewRelativePosition.Top;
verticalDistance = 0;
}
else if (bufferPosition > BufferLines.BufferEnd) {
bufferPosition = BufferLines.BufferEnd;
relativeTo = VSTE.ViewRelativePosition.Bottom;
verticalDistance = 0;
}
}
layoutHelper.LayoutLines(bufferPosition, relativeTo, verticalDistance, ViewportLeft, viewportWidthOverride, viewportHeightOverride);
visiblePhysicalLines.AddRange(layoutHelper.AllVisiblePhysicalLines);
wpfHexViewLineCollection = new WpfHexViewLineCollectionImpl(this, layoutHelper.AllVisibleLines);
if (!InLayout)
throw new InvalidOperationException();
inLayout = false;
textLayer.AddVisibleLines(layoutHelper.AllVisibleLines);
var newOrReformattedLines = layoutHelper.NewOrReformattedLines.ToArray();
var translatedLines = layoutHelper.TranslatedLines.ToArray();
if (layoutHelper.NewViewportTop != viewportTop) {
viewportTop = layoutHelper.NewViewportTop;
Canvas.SetTop(normalAdornmentLayerCollection, -viewportTop);
}
if ((options & DisplayHexLineOptions.CanRecreateBufferLines) != 0) {
if (raiseBufferLinesChangedEvent)
RaiseBufferLinesChanged(oldBufferLines);
}
else if (raiseBufferLinesChangedEvent && oldBufferLines == hexBufferLineFormatter) {
var newOptions = GetHexBufferLineFormatterOptions();
if (!newOptions.Equals(oldHexBufferLineFormatterOptions)) {
canvas.Dispatcher.BeginInvoke(DispatcherPriority.Send, new Action(() => {
if (oldBufferLines == hexBufferLineFormatter) {
hexBufferLineFormatter = null;
var newBufferLines = BufferLines;
RaiseBufferLinesChanged(oldBufferLines);
var line = wpfHexViewLineCollection.FirstVisibleLine;
verticalDistance = line.Top - ViewportTop;
bufferPosition = line.BufferStart;
if (bufferPosition < BufferLines.BufferStart)
bufferPosition = BufferLines.BufferStart;
else if (bufferPosition > BufferLines.BufferEnd)
bufferPosition = BufferLines.BufferEnd;
DisplayLines(bufferPosition, verticalDistance, VSTE.ViewRelativePosition.Top, ViewportWidth, ViewportHeight, DisplayHexLineOptions.CanRecreateBufferLines, ViewportTop);
}
}));
}
}
// Raise this event after BufferLinesChanged event. BufferLinesChanged is more low level and
// various code could use cached positions in LayoutChanged handlers (eg. the caret will use
// its cached position). If this event is raised afterwards, they have a chance to re-validate
// their cached values.
RaiseLayoutChanged(viewportWidthOverride, viewportHeightOverride, newOrReformattedLines, translatedLines);
}
public override double GetFractionAtBufferPosition(HexBufferPoint bufferPosition) {
if (bufferPosition.IsDefault)
throw new ArgumentException();
if (bufferPosition.Buffer != HexView.Buffer)
throw new ArgumentException();
if (!HexView.BufferLines.IsValidPosition(bufferPosition))
throw new ArgumentOutOfRangeException(nameof(bufferPosition));
double length = End - Start;
if (length == 0)
return 0;
if (HexView.BufferLines.GetLineNumberFromPosition(bufferPosition) + 1 == HexView.BufferLines.LineCount)
return 1;
var coord = GetCoordinateAtBufferPosition(bufferPosition);
Debug.Assert(Start <= coord && coord <= End);
return Math.Min(Math.Max(0, (coord - Start) / length), 1);
}
/// <summary> /// Displays a line in the view /// </summary> /// <param name="bufferPosition">Position</param> /// <param name="verticalDistance">Distance relative to the top or bottom of the view</param> /// <param name="relativeTo">The <see cref="VSTE.ViewRelativePosition"/></param> /// <param name="viewportWidthOverride">Overrides viewport width</param> /// <param name="viewportHeightOverride">Overrides viewport height</param> public void DisplayHexLineContainingBufferPosition(HexBufferPoint bufferPosition, double verticalDistance, VSTE.ViewRelativePosition relativeTo, double? viewportWidthOverride, double? viewportHeightOverride) => DisplayHexLineContainingBufferPosition(bufferPosition, verticalDistance, relativeTo, viewportWidthOverride, viewportHeightOverride, DisplayHexLineOptions.None);
public override HexPosition GetLineNumberFromPosition(HexBufferPoint position) {
position = FilterAndVerify(position);
return (position.Position - startPosition).ToUInt64() / bytesPerLine;
}
/// <summary> /// Selects data and moves the caret /// </summary> /// <param name="column">Column</param> /// <param name="anchorPoint">Anchor position</param> /// <param name="activePoint">Active position</param> /// <param name="alignPoints">true to align the span to include all bytes of the cells</param> /// <param name="scrollOptions">Scroll options</param> public abstract void SelectAndMoveCaret(HexColumnType column, HexBufferPoint anchorPoint, HexBufferPoint activePoint, bool alignPoints, VSTE.EnsureSpanVisibleOptions?scrollOptions);
/// <summary> /// Select a span /// </summary> /// <param name="anchorPoint">Anchor point</param> /// <param name="activePoint">Active point</param> /// <param name="alignPoints">true to align the span to include all bytes of the cells</param> public abstract void Select(HexBufferPoint anchorPoint, HexBufferPoint activePoint, bool alignPoints);
/// <summary> /// Displays a line in the view /// </summary> /// <param name="bufferPosition">Position</param> /// <param name="verticalDistance">Distance relative to the top or bottom of the view</param> /// <param name="relativeTo">The <see cref="VSTE.ViewRelativePosition"/></param> public void DisplayHexLineContainingBufferPosition(HexBufferPoint bufferPosition, double verticalDistance, VSTE.ViewRelativePosition relativeTo) => DisplayHexLineContainingBufferPosition(bufferPosition, verticalDistance, relativeTo, null, null, DisplayHexLineOptions.None);
/// <summary> /// Selects data and moves the caret /// </summary> /// <param name="column">Column</param> /// <param name="anchorPoint">Anchor position</param> /// <param name="activePoint">Active position</param> /// <param name="alignPoints">true to align the span to include all bytes of the cells</param> /// <param name="scrollOptions">Scroll options</param> public abstract void SelectAndMoveCaret(HexColumnType column, HexBufferPoint anchorPoint, HexBufferPoint activePoint, bool alignPoints, VSTE.EnsureSpanVisibleOptions? scrollOptions);
/// <summary> /// Gets the line that contains the position /// </summary> /// <param name="bufferPosition">Position</param> /// <returns></returns> public abstract WpfHexViewLine GetWpfHexViewLineContainingBufferPosition(HexBufferPoint bufferPosition);
/// <summary> /// Returns true if <paramref name="bufferPosition"/> lies within this line /// </summary> /// <param name="bufferPosition">Position</param> /// <returns></returns> public abstract bool ContainsBufferPosition(HexBufferPoint bufferPosition);