/// <summary>
/// Retrieves a line of text from the document.
/// </summary>
/// <param name="Index">The index of the line to retrieve.</param>
/// <param name="bIncludeEOL">True if the line includes the EOL characters.</param>
/// <returns>A string containing the text of the specified line.</returns>
public string GetLine(int Index, bool bIncludeEOL)
{
DocumentLine Line = mLines[Index];
if (!bIncludeEOL && Line.Length >= 2 && Line[Line.Length - 1] == '\n' && Line[Line.Length - 2] == '\r')
{
return(Line.ToString(0, Line.Length - 2));
}
return(Line.ToString());
}
/// <summary>
/// Searches for a string in the reverse direction of <see cref="FindForward"/>.
/// </summary>
/// <param name="Txt">The text to search for.</param>
/// <param name="StartLoc">The starting location of the search.</param>
/// <param name="EndLoc">The ending location of the search.</param>
/// <param name="Flags">Flags controlling how the searching is conducted.</param>
/// <param name="Result">Receives the results of the search.</param>
/// <returns>True if a match was found.</returns>
private bool FindReverse(string Txt, ref TextLocation StartLoc, ref TextLocation EndLoc, RichTextBoxFinds Flags, out FindResult Result)
{
bool bFound = false;
bool bMatchWord;
bool bIsWord;
StringComparison ComparisonFlags;
SetupFindState(Txt, ref StartLoc, ref EndLoc, Flags, out Result, out bIsWord, out ComparisonFlags, out bMatchWord);
for (int CurLineIndex = StartLoc.Line; CurLineIndex >= EndLoc.Line && !bFound; --CurLineIndex)
{
if (GetLineLength(CurLineIndex) == 0)
{
continue;
}
DocumentLine CurLineBldr = mLines[CurLineIndex];
string LineTxt;
int ColumnIndex = 0;
if (CurLineIndex == StartLoc.Line && StartLoc.Column < GetLineLength(CurLineIndex))
{
LineTxt = CurLineBldr.ToString(0, StartLoc.Column);
}
else if (CurLineIndex == EndLoc.Line && EndLoc.Column > 0)
{
LineTxt = CurLineBldr.ToString(EndLoc.Column, CurLineBldr.Length - EndLoc.Column);
ColumnIndex = EndLoc.Column;
}
else
{
LineTxt = CurLineBldr.ToString();
}
int Index = LineTxt.LastIndexOf(Txt, ComparisonFlags);
if (Index != -1)
{
ColumnIndex += Index;
CheckForWholeWord(Txt, ref Result, bMatchWord, ref bFound, bIsWord, CurLineIndex, CurLineBldr, ColumnIndex, Index);
}
}
return(bFound);
}
/// <summary>
/// Creates a new document by filtering out the lines of the current document using the supplied filter function.
/// </summary>
/// <param name="Filter">The function that will filter the lines out of the current document.</param>
/// <param name="Data">User supplied data that may control filtering.</param>
/// <returns>A new document containing filtered lines from the current document.</returns>
public OutputWindowDocument CreateFilteredDocument(OutputWindowDocumentFilterDelegate Filter, object Data)
{
if (Filter == null)
{
throw new ArgumentNullException("Filter");
}
OutputWindowDocument NewDoc = new OutputWindowDocument();
NewDoc.mLines.Capacity = mLines.Capacity;
DocumentLine LastLine = null;
foreach (DocumentLine CurLine in mLines)
{
if (!Filter(new ReadOnlyDocumentLine(CurLine), Data))
{
DocumentLine NewLine = (DocumentLine)CurLine.Clone();
NewDoc.mLines.Add(NewLine);
int LineLength = GetLineLength(NewLine);
if (LineLength > NewDoc.mLongestLineLength)
{
NewDoc.mLongestLineLength = LineLength;
}
LastLine = NewLine;
}
}
// If the last line is a full line we need to append an empty line because the empty line has been filtered out
if (LastLine != null && LastLine.ToString().EndsWith(Environment.NewLine))
{
NewDoc.mLines.Add(new DocumentLine());
}
return(NewDoc);
}
/// <summary>
/// Returns the text associated with the line.
/// </summary>
/// <returns>The text associated with the line.</returns>
public override string ToString()
{
return(mDocLine.ToString());
}
