public static string GetDiffMessage(object currentSnapshot, object newSnapshot)
{
var currentSnapshotJObject = JObjectHelper.FromObject(currentSnapshot);
var newSnapshotJObject = JObjectHelper.FromObject(newSnapshot);
var dmp = new diff_match_patch();
var a = dmp.diff_linesToChars(currentSnapshotJObject.ToString(), newSnapshotJObject.ToString());
var lineText1 = (string)a[0];
var lineText2 = (string)a[1];
var lineArray = (List <string>)a[2];
var diffs = dmp.diff_main(lineText1, lineText2, false);
dmp.diff_charsToLines(diffs, lineArray);
dmp.diff_cleanupEfficiency(diffs);
var builder = new StringBuilder(Environment.NewLine);
builder.AppendLine("Snapshots do not match");
builder.AppendLine(RemovedLegendString);
builder.AppendLine(AddedLegendString);
builder.AppendLine(Environment.NewLine);
for (var i = 0; i < diffs.Count; i++)
{
var diff = diffs[i];
var lines = GetLines(diff.text);
switch (diff.operation)
{
case Operation.DELETE:
lines.ForEach(l => builder.AppendLine($"- {l}"));
break;
case Operation.INSERT:
lines.ForEach(l => builder.AppendLine($"+ {l}"));
break;
case Operation.EQUAL:
GetEqualLines(lines, i == 0, i == diffs.Count - 1).ForEach(l => builder.AppendLine(l));
break;
}
}
return(builder.ToString());
}
public static string DiffTwoFiles(string file1, string file2)
{
diff_match_patch dmp = new diff_match_patch();
dmp.Diff_Timeout = 0;
List <Diff> diffs;
using (StreamReader r = new StreamReader(File.Open(file1, FileMode.Open)))
using (StreamReader r2 = new StreamReader(File.Open(file2, FileMode.Open)))
{
diffs = dmp.diff_main(r.ReadToEnd(), r2.ReadToEnd());
dmp.diff_cleanupEfficiency(diffs);
dmp.diff_cleanupSemantic(diffs);
}
return(dmp.diff_prettyHtml(diffs));
}
public void ShowDifferenceBetweenTwoFile()
{
diff_match_patch DIFF = new diff_match_patch();
List <Chunk> chunklist1;
List <Chunk> chunklist2;
diffs = DIFF.diff_main(richTextBoxCurrentVersion.Text, richTextBoxLastVersion.Text);
DIFF.diff_cleanupEfficiency(diffs);
chunklist1 = collectChunks(richTextBoxCurrentVersion);
chunklist2 = collectChunks(richTextBoxLastVersion);
paintChunks(richTextBoxCurrentVersion, chunklist1);
paintChunks(richTextBoxLastVersion, chunklist2);
richTextBoxCurrentVersion.SelectionLength = 0;
richTextBoxLastVersion.SelectionLength = 0;
}
private static string GetDiffMessage(JToken old, JToken @new)
{
var dmp = new diff_match_patch();
var a = dmp.diff_linesToChars(old.ToString(), @new.ToString());
var lineText1 = (string)a[0];
var lineText2 = (string)a[1];
var lineArray = (List <string>)a[2];
var diffs = dmp.diff_main(lineText1, lineText2, false);
dmp.diff_charsToLines(diffs, lineArray);
dmp.diff_cleanupEfficiency(diffs);
var builder = new StringBuilder("\n");
builder.AppendLine("- Snapshot");
builder.AppendLine("+ Receieved\n\n");
for (var i = 0; i < diffs.Count; i++)
{
var diff = diffs[i];
var lines = GetLines(diff.text);
switch (diff.operation)
{
case Operation.DELETE:
lines.ForEach(l => builder.AppendLine($"- {l}"));
break;
case Operation.INSERT:
lines.ForEach(l => builder.AppendLine($"+ {l}"));
break;
case Operation.EQUAL:
GetEqualLines(lines, i == 0, i == diffs.Count - 1).ForEach(l => builder.AppendLine(l));
break;
}
}
return(builder.ToString());
}
private static void updateContent(VisualDiffTextBlock textBlock)
{
textBlock.Inlines.Clear();
if (textBlock.IsVisualDiffVisible)
{
var brushConverter = new BrushConverter();
diff_match_patch dmp = new diff_match_patch();
List<Diff> diffList = dmp.diff_main(
textBlock.PreviousText.Replace("\n", "\u00b6").Replace("\r", "").Replace(' ', '\u00B7'),
textBlock.CurrentText.Replace("\n", "\u00b6").Replace("\r", "").Replace(' ', '\u00B7'),
false);
// Apply a clean up, the default value of this function is 4 chars.
// To change the value, you'll need to do so inside the DiffMatchPatch.cs file.
dmp.diff_cleanupEfficiency(diffList);
foreach(Diff diffItem in diffList)
{
switch(diffItem.operation)
{
case Operation.DELETE:
textBlock.Inlines.Add(new Run(diffItem.text) { Background = (Brush)brushConverter.ConvertFromString("#ff6a1010"), Foreground = (Brush)brushConverter.ConvertFromString("#ffdddddd"), TextDecorations = System.Windows.TextDecorations.Strikethrough });
break;
case Operation.EQUAL:
textBlock.Inlines.Add(new Run(diffItem.text.Replace("\u00b6", "\u00b6" + System.Environment.NewLine)));
break;
case Operation.INSERT:
textBlock.Inlines.Add(new Run(diffItem.text.Replace("\u00b6", "\u00b6" + System.Environment.NewLine)) { Background = (Brush)brushConverter.ConvertFromString("#ff005e41"), Foreground = (Brush)brushConverter.ConvertFromString("#ffdddddd") });
break;
}
}
}
else
{
textBlock.Text = textBlock.CurrentText;
}
}
private void ButtonCompare_Click(object sender, EventArgs e)
{
Console.WriteLine("Button click!");
if ((pdfPanel1.pdfViewer.Document == null) || (pdfPanel2.pdfViewer.Document == null))
{
labelResult.Text = "0.0";
return;
}
var stopwatch = new System.Diagnostics.Stopwatch();
int page1 = pdfPanel1.pdfViewer.Renderer.Page;
int page2 = pdfPanel2.pdfViewer.Renderer.Page;
//if ((pdfPanel1.GetComparedPage(page1) == page2) && (pdfPanel2.GetComparedPage(page2) == page1))
//{
// labelResult.Text = "0.0";
// return;
//}
if (pdfPanel1.GetComparedPage(page1) >= 0)
{
pdfPanel1.ClearDiffMarker(page1);
}
if (pdfPanel2.GetComparedPage(page2) >= 0)
{
pdfPanel2.ClearDiffMarker(page2);
}
// Draw without the marker.
pdfPanel1.Update();
pdfPanel2.Update();
//stopwatch.Stop();
//Console.WriteLine("Clear:{0}", stopwatch.Elapsed);
//stopwatch.Start();
String text1 = pdfPanel1.GetPageText();
String text2 = pdfPanel2.GetPageText();
List <PdfTextSpan> index1 = new List <PdfTextSpan>();
List <PdfTextSpan> index2 = new List <PdfTextSpan>();
stopwatch.Stop();
Console.WriteLine("Get:{0}", stopwatch.Elapsed);
labelResult.Text = ".";
labelResult.Update();
stopwatch.Start();
diff_match_patch dmp;
List <Diff> diffs;
int diffType = comboBoxDiffType.SelectedIndex;
switch (diffType)
{
case 0: // NetDiff
var results = DiffUtil.Diff(text1, text2);
ExtractDiffSpan(index1, index2, results, page1, page2);
break;
case 1: // Google Diff - Semantic
dmp = new diff_match_patch();
diffs = dmp.diff_main(text1, text2);
dmp.diff_cleanupSemantic(diffs);
ExtractDiffSpan2(index1, index2, diffs, page1, page2);
break;
case 2: // Google Diff - Effective 4
dmp = new diff_match_patch();
dmp.Diff_EditCost = 4;
diffs = dmp.diff_main(text1, text2);
dmp.diff_cleanupEfficiency(diffs);
ExtractDiffSpan2(index1, index2, diffs, page1, page2);
break;
case 3: // Google Diff - Effective 5
dmp = new diff_match_patch();
dmp.Diff_EditCost = 5;
diffs = dmp.diff_main(text1, text2);
dmp.diff_cleanupEfficiency(diffs);
ExtractDiffSpan2(index1, index2, diffs, page1, page2);
break;
case 4: // Google Diff - Effective 3
dmp = new diff_match_patch();
dmp.Diff_EditCost = 3;
diffs = dmp.diff_main(text1, text2);
dmp.diff_cleanupEfficiency(diffs);
ExtractDiffSpan2(index1, index2, diffs, page1, page2);
break;
case 5: // Google Diff - Raw
dmp = new diff_match_patch();
diffs = dmp.diff_main(text1, text2);
ExtractDiffSpan2(index1, index2, diffs, page1, page2);
break;
default:
throw new Exception();
}
stopwatch.Stop();
Console.WriteLine("Diff:{0}", stopwatch.Elapsed);
labelResult.Text = "..";
labelResult.Update();
stopwatch.Start();
pdfPanel1.SetPageDiff(index1);
pdfPanel2.SetPageDiff(index2);
pdfPanel1.AddDiffMarker(page2);
labelResult.Text = "...";
labelResult.Update();
pdfPanel2.AddDiffMarker(page1);
labelResult.Text = "....";
labelResult.Update();
stopwatch.Stop();
Console.WriteLine("Marker:{0}", stopwatch.Elapsed);
stopwatch.Start();
//results.ToList().ForEach(r => Console.WriteLine(r.ToFormatString()));
if (stopwatch.ElapsedMilliseconds < 50)
{
Thread.Sleep(30);
}
// Draw with the markers.
pdfPanel1.Update();
pdfPanel2.Update();
stopwatch.Stop();
Console.WriteLine("Draw:{0}", stopwatch.Elapsed);
labelResult.Text = String.Format("{0:0.0}", stopwatch.ElapsedMilliseconds / 1000.0);
}
