/// <summary>
/// Compare two blocks of lines against each other.
/// </summary>
/// <param name="poAlpha">First block of lines.</param>
/// <param name="poBeta">Second block of lines.</param>
public override void Compare(Block poAlpha1, Block poBeta1)
{
Sections.OnAddSection += new Sections.AddSectionHandler(Sections_OnAddSection);
BlockOfLines poAlpha = (BlockOfLines)poAlpha1;
BlockOfLines poBeta = (BlockOfLines)poBeta1;
BlockOfCharacters oAlphaChars = null;
BlockOfCharacters oBetaChars = null;
if (poAlpha.ContentsLength >= poBeta.ContentsLength)
{
mcSegA.ProgressOn = Segments.ProgressOnEnum.Alpha;
mcSegB.ProgressOn = Segments.ProgressOnEnum.Alpha;
SignalBeginCompare(poAlpha.ContentsLength);
}
else
{
mcSegA.ProgressOn = Segments.ProgressOnEnum.Beta;
mcSegB.ProgressOn = Segments.ProgressOnEnum.Beta;
SignalBeginCompare(poBeta.ContentsLength);
}
this.MinElements = this.MinLines;
Analyse(1, poAlpha, 1, poBeta);
//Add missing alpha segments.
SegmentComparer oSegAComparer = new SegmentComparer();
oSegAComparer.ComparisonMethod = SegmentComparer.ComparisonType.AlphaPosition;
AddMissingSegments("A1", oSegAComparer, mcSegA, poAlpha);
//Add missing beta segments.
SegmentComparer oSegBComparer = new SegmentComparer();
oSegBComparer.ComparisonMethod = SegmentComparer.ComparisonType.BetaPosition;
AddMissingSegments("B1", oSegBComparer, mcSegB, poBeta);
SignalEndOfCompare();
//Check if user has chosen to cancel run.
if (Interrupt.Reason == "Cancel")
{
return;
}
//Report.
if (poAlpha.ContentsLength >= poBeta.ContentsLength)
{
Sections.ProgressOn = Sections.ProgressOnEnum.Alpha;
SignalBeginReport(poAlpha.ContentsLength);
}
else
{
Sections.ProgressOn = Sections.ProgressOnEnum.Beta;
SignalBeginReport(poBeta.ContentsLength);
}
//Merge into report.
long nCountA = 0;
long nCountB = 0;
SegmentOfLines oSegA = new SegmentOfLines();
SegmentOfLines oSegB = new SegmentOfLines();
oSegA.Type = "X1";
oSegA.Data = new BlockOfLines();
oSegB.Type = "Z1";
oSegB.Data = new BlockOfLines();
SectionOfLines oSection = new SectionOfLines();
while (nCountA < mcSegA.Count || nCountB < mcSegB.Count)
{
if (nCountA < mcSegA.Count)
{
oSegA = (SegmentOfLines)mcSegA[(int)nCountA];
}
if (nCountB < mcSegB.Count)
{
oSegB = (SegmentOfLines)mcSegB[(int)nCountB];
}
if (oSegA.Type.Substring(0, 1) == "M" && oSegB.Type.Substring(0, 1) == "M")
{
if (!oSegA.Data.IsEmpty)
{
oSegA.Display();
oSection = new SectionOfLines();
oSection.Type = oSegA.Type;
oSection.Position = oSegA.PositionA;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegA.Size;
oSection.Data = oSegA.Data;
Sections.Add(oSection);
}
nCountA++;
nCountB++;
}
else if (oSegA.Type.Substring(0, 1) == "M" && oSegB.Type.Substring(0, 1) != "M")
{
if (!oSegB.Data.IsEmpty)
{
oSegB.Display();
oSection = new SectionOfLines();
oSection.Type = oSegB.Type;
oSection.Position = oSegB.PositionB;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegB.Size;
oSection.Data = oSegB.Data;
Sections.Add(oSection);
}
nCountB++;
}
else if (oSegA.Type.Substring(0, 1) != "M" && oSegB.Type.Substring(0, 1) == "M")
{
if (!oSegA.Data.IsEmpty)
{
oSegA.Display();
oSection = new SectionOfLines();
oSection.Type = oSegA.Type;
oSection.Position = oSegA.PositionA;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegA.Size;
oSection.Data = oSegA.Data;
Sections.Add(oSection);
}
nCountA++;
}
else if (oSegA.Type.Substring(0, 1) != "M" && oSegB.Type.Substring(0, 1) != "M")
{
if (this.CompleteLines)
{
if (oSegA.PositionA < oSegB.PositionB)
{
if (!oSegA.Data.IsEmpty)
{
oSegA.Display();
oSection = new SectionOfLines();
oSection.Type = oSegA.Type;
oSection.Position = oSegA.PositionA;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegA.Size;
oSection.Data = oSegA.Data;
Sections.Add(oSection);
}
if (!oSegB.Data.IsEmpty)
{
oSegB.Display();
oSection = new SectionOfLines();
oSection.Type = oSegB.Type;
oSection.Position = oSegB.PositionB;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegB.Size;
oSection.Data = oSegB.Data;
Sections.Add(oSection);
}
}
else
{
if (!oSegB.Data.IsEmpty)
{
oSegB.Display();
oSection = new SectionOfLines();
oSection.Type = oSegB.Type;
oSection.Position = oSegB.PositionB;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegB.Size;
oSection.Data = oSegB.Data;
Sections.Add(oSection);
}
if (!oSegA.Data.IsEmpty)
{
oSegA.Display();
oSection = new SectionOfLines();
oSection.Type = oSegA.Type;
oSection.Position = oSegA.PositionA;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegA.Size;
oSection.Data = oSegA.Data;
Sections.Add(oSection);
}
}
nCountA++;
nCountB++;
}
else
{
if (!oSegA.Data.IsEmpty && !oSegB.Data.IsEmpty)
{
if (oSegA.Data.Length < this.SubLineMatchLimit && oSegB.Data.Length < this.SubLineMatchLimit)
{
//Look for sub-line matches.
oAlphaChars = oSegA.Data.GetCharacters();
oBetaChars = oSegB.Data.GetCharacters();
CompareCharacters oCompareCharacters = new CompareCharacters();
oCompareCharacters.MinElements = this.MinChars;
oCompareCharacters.MinChars = this.MinChars;
oCompareCharacters.MinLines = this.MinLines;
oCompareCharacters.LimitElements = this.LimitCharacters;
oCompareCharacters.LimitCharacters = this.LimitCharacters;
oCompareCharacters.LimitLines = this.LimitLines;
oCompareCharacters.SubLineMatchLimit = this.SubLineMatchLimit;
oCompareCharacters.CompleteLines = this.CompleteLines;
oCompareCharacters.Sections = this.Sections;
oCompareCharacters.Interrupt = this.Interrupt;
oCompareCharacters.Compare(oAlphaChars, oBetaChars);
}
else
{
//Don't look for sub-line matches if the mismatched blocks are too large,
//since this has a large performance impact for little likely benefit.
if (oSegA.PositionA < oSegB.PositionB)
{
if (!oSegA.Data.IsEmpty)
{
oSegA.Display();
oSection = new SectionOfLines();
oSection.Type = oSegA.Type;
oSection.Position = oSegA.PositionA;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegA.Size;
oSection.Data = oSegA.Data;
Sections.Add(oSection);
}
if (!oSegB.Data.IsEmpty)
{
oSegB.Display();
oSection = new SectionOfLines();
oSection.Type = oSegB.Type;
oSection.Position = oSegB.PositionB;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegB.Size;
oSection.Data = oSegB.Data;
Sections.Add(oSection);
}
}
else
{
if (!oSegB.Data.IsEmpty)
{
oSegB.Display();
oSection = new SectionOfLines();
oSection.Type = oSegB.Type;
oSection.Position = oSegB.PositionB;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegB.Size;
oSection.Data = oSegB.Data;
Sections.Add(oSection);
}
if (!oSegA.Data.IsEmpty)
{
oSegA.Display();
oSection = new SectionOfLines();
oSection.Type = oSegA.Type;
oSection.Position = oSegA.PositionA;
oSection.PositionA = oSegA.PositionA;
oSection.PositionB = oSegB.PositionB;
oSection.Size = oSegA.Size;
oSection.Data = oSegA.Data;
Sections.Add(oSection);
}
}
nCountA++;
nCountB++;
}
}
nCountA++;
nCountB++;
}
}
}
SignalEndOfReport();
}