public DiffResultSpanCollection DiffReport()
{
DiffResultSpanCollection returnResultSpanCollection = new DiffResultSpanCollection();
int dcount = _dest.Count();
int scount = _source.Count();
//Deal with the special case of empty files
if (dcount == 0)
{
if (scount > 0)
{
returnResultSpanCollection.Add(DiffResultSpan.CreateDeleteSource(0, scount));
}
return(returnResultSpanCollection);
}
else
{
if (scount == 0)
{
returnResultSpanCollection.Add(DiffResultSpan.CreateAddDestination(0, dcount));
return(returnResultSpanCollection);
}
}
_matchList.Sort();
int curDest = 0;
int curSource = 0;
DiffResultSpan lastResultSpan = null;
//Process each match record
foreach (DiffResultSpan resultSpan in _matchList)
{
if ((!AddChanges(returnResultSpanCollection, curDest, resultSpan.DestIndex, curSource, resultSpan.SourceIndex)) &&
(lastResultSpan != null))
{
lastResultSpan.AddLength(resultSpan.Length);
}
else
{
returnResultSpanCollection.Add(resultSpan);
}
curDest = resultSpan.DestIndex + resultSpan.Length;
curSource = resultSpan.SourceIndex + resultSpan.Length;
lastResultSpan = resultSpan;
}
//Process any tail end data
AddChanges(returnResultSpanCollection, curDest, dcount, curSource, scount);
return(returnResultSpanCollection);
}
public DiffResultSpanCollection DiffReport()
{
DiffResultSpanCollection returnResultSpanCollection = new DiffResultSpanCollection();
int dcount = _dest.Count();
int scount = _source.Count();
//Deal with the special case of empty files
if (dcount == 0)
{
if (scount > 0)
{
returnResultSpanCollection.Add(DiffResultSpan.CreateDeleteSource(0,scount));
}
return returnResultSpanCollection;
}
else
{
if (scount == 0)
{
returnResultSpanCollection.Add(DiffResultSpan.CreateAddDestination(0,dcount));
return returnResultSpanCollection;
}
}
_matchList.Sort();
int curDest = 0;
int curSource = 0;
DiffResultSpan lastResultSpan = null;
//Process each match record
foreach (DiffResultSpan resultSpan in _matchList)
{
if ((!AddChanges(returnResultSpanCollection,curDest,resultSpan.DestIndex,curSource,resultSpan.SourceIndex))&&
(lastResultSpan != null))
{
lastResultSpan.AddLength(resultSpan.Length);
}
else
{
returnResultSpanCollection.Add(resultSpan);
}
curDest = resultSpan.DestIndex + resultSpan.Length;
curSource = resultSpan.SourceIndex + resultSpan.Length;
lastResultSpan = resultSpan;
}
//Process any tail end data
AddChanges(returnResultSpanCollection,curDest,dcount,curSource,scount);
return returnResultSpanCollection;
}
private bool AddChanges(
DiffResultSpanCollection report,
int curDest,
int nextDest,
int curSource,
int nextSource)
{
bool returnResultSpanCollection = false;
int diffDest = nextDest - curDest;
int diffSource = nextSource - curSource;
int minDiff = 0;
if (diffDest > 0)
{
if (diffSource > 0)
{
minDiff = Math.Min(diffDest, diffSource);
report.Add(DiffResultSpan.CreateReplace(curDest, curSource, minDiff));
if (diffDest > diffSource)
{
curDest += minDiff;
report.Add(DiffResultSpan.CreateAddDestination(curDest, diffDest - diffSource));
}
else
{
if (diffSource > diffDest)
{
curSource += minDiff;
report.Add(DiffResultSpan.CreateDeleteSource(curSource, diffSource - diffDest));
}
}
}
else
{
report.Add(DiffResultSpan.CreateAddDestination(curDest, diffDest));
}
returnResultSpanCollection = true;
}
else
{
if (diffSource > 0)
{
report.Add(DiffResultSpan.CreateDeleteSource(curSource, diffSource));
returnResultSpanCollection = true;
}
}
return(returnResultSpanCollection);
}
//UPDATE
internal DifferenceCollectionEnumerator(DiffResultSpanCollection collection)
{
_index = -1;
_collection = collection;
}
public DiffResultSpanSerializer(DiffResultSpanCollection diffResultSpanCollection)
{
_diffResultSpanCollection = diffResultSpanCollection;
}
public DiffResultSpanSerializer(DiffResultSpanCollection diffResultSpanCollection)
{
_diffResultSpanCollection = diffResultSpanCollection;
}
public Results(TextMemory source, TextMemory destination, DiffResultSpanCollection diffResults, double seconds)
{
InitializeComponent();
this.Text = string.Format("Results: {0} secs.",seconds.ToString("#0.00"));
ListViewItem lviS;
ListViewItem lviD;
int cnt = 1;
int i;
foreach (DiffResultSpan drs in diffResults)
{
switch (drs.Status)
{
case DiffResultSpanStatus.DeleteSource:
for (i = 0; i < drs.Length; i++)
{
lviS = new ListViewItem(cnt.ToString("00000"));
lviD = new ListViewItem(cnt.ToString("00000"));
lviS.BackColor = Color.Red;
lviS.SubItems.Add(((TextLine)source.GetByIndex(drs.SourceIndex + i)).Line);
lviD.BackColor = Color.LightGray;
lviD.SubItems.Add("");
lvSource.Items.Add(lviS);
lvDestination.Items.Add(lviD);
cnt++;
}
break;
case DiffResultSpanStatus.NoChange:
for (i = 0; i < drs.Length; i++)
{
lviS = new ListViewItem(cnt.ToString("00000"));
lviD = new ListViewItem(cnt.ToString("00000"));
lviS.BackColor = Color.White;
lviS.SubItems.Add(((TextLine)source.GetByIndex(drs.SourceIndex+i)).Line);
lviD.BackColor = Color.White;
lviD.SubItems.Add(((TextLine)destination.GetByIndex(drs.DestIndex+i)).Line);
lvSource.Items.Add(lviS);
lvDestination.Items.Add(lviD);
cnt++;
}
break;
case DiffResultSpanStatus.AddDestination:
for (i = 0; i < drs.Length; i++)
{
lviS = new ListViewItem(cnt.ToString("00000"));
lviD = new ListViewItem(cnt.ToString("00000"));
lviS.BackColor = Color.LightGray;
lviS.SubItems.Add("");
lviD.BackColor = Color.LightGreen;
lviD.SubItems.Add(((TextLine)destination.GetByIndex(drs.DestIndex+i)).Line);
lvSource.Items.Add(lviS);
lvDestination.Items.Add(lviD);
cnt++;
}
break;
case DiffResultSpanStatus.Replace:
for (i = 0; i < drs.Length; i++)
{
lviS = new ListViewItem(cnt.ToString("00000"));
lviD = new ListViewItem(cnt.ToString("00000"));
lviS.BackColor = Color.Red;
lviS.SubItems.Add(((TextLine)source.GetByIndex(drs.SourceIndex+i)).Line);
lviD.BackColor = Color.LightGreen;
lviD.SubItems.Add(((TextLine)destination.GetByIndex(drs.DestIndex+i)).Line);
lvSource.Items.Add(lviS);
lvDestination.Items.Add(lviD);
cnt++;
}
break;
}
}
}
//UPDATE
internal DifferenceCollectionEnumerator(DiffResultSpanCollection collection)
{
_index = -1;
_collection = collection;
}
private bool AddChanges(
DiffResultSpanCollection report,
int curDest,
int nextDest,
int curSource,
int nextSource)
{
bool returnResultSpanCollection = false;
int diffDest = nextDest - curDest;
int diffSource = nextSource - curSource;
int minDiff = 0;
if (diffDest > 0)
{
if (diffSource > 0)
{
minDiff = Math.Min(diffDest,diffSource);
report.Add(DiffResultSpan.CreateReplace(curDest,curSource,minDiff));
if (diffDest > diffSource)
{
curDest+=minDiff;
report.Add(DiffResultSpan.CreateAddDestination(curDest,diffDest - diffSource));
}
else
{
if (diffSource > diffDest)
{
curSource+= minDiff;
report.Add(DiffResultSpan.CreateDeleteSource(curSource,diffSource - diffDest));
}
}
}
else
{
report.Add(DiffResultSpan.CreateAddDestination(curDest,diffDest));
}
returnResultSpanCollection = true;
}
else
{
if (diffSource > 0)
{
report.Add(DiffResultSpan.CreateDeleteSource(curSource,diffSource));
returnResultSpanCollection = true;
}
}
return returnResultSpanCollection;
}
