/// <summary>
/// Append a DiffResult<T> to a list, merging common results.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="diff">The list of DiffResults.</param>
/// <param name="value">The new value to add to the list.</param>
/// <param name="owner">The owner (source, target or both) of the value.</param>
private static void AppendResult <T>(List <DiffResult <T> > diff, T value, DiffOwner owner)
{
// If the last entry in the list has the same owner as the new value,
// just append the new value to the old entry.
if (diff.Count > 0)
{
DiffResult <T> lastResult = diff[diff.Count - 1];
if (lastResult.Owner == owner)
{
lastResult.Value.Add(value);
return;
}
}
// Otherwise, just add a new entry to the list.
DiffResult <T> result = new DiffResult <T>()
{
Owner = owner,
};
result.Value.Add(value);
diff.Add(result);
}
/// <summary>
/// Prepend a DiffResult<T> to a list, merging common results.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="diff">The list of DiffResults.</param>
/// <param name="value">The new value to add to the list.</param>
/// <param name="owner">The owner (source, target or both) of the value.</param>
private static void PrependResult <T>(List <DiffResult <T> > diff, T value, DiffOwner owner)
{
// If the first entry in the list has the same owner as the new value,
// just prepend the new value to the old entry.
if (diff.Count > 0)
{
DiffResult <T> firstResult = diff[0];
if (firstResult.Owner == owner)
{
firstResult.Value.Insert(0, value);
return;
}
}
// Otherwise, just add a new entry to the start of the list.
DiffResult <T> result = new DiffResult <T>()
{
Owner = owner,
};
result.Value.Add(value);
diff.Insert(0, result);
}
private void UpdateBrowsers(CustomizationComparison comparison, DiffResult <String>[] results)
{
if (!ComparisonListView.SelectedItems.Cast <ListViewItem>().Any(i => i.Tag == comparison))
{
return;
}
SourceBusyPicture.Visible = false;
TargetBusyPicture.Visible = false;
StringBuilder sourceBuffer = new StringBuilder();
StringBuilder targetBuffer = new StringBuilder();
HtmlTextWriter sourceWriter = new HtmlTextWriter(new StringWriter(sourceBuffer));
HtmlTextWriter targetWriter = new HtmlTextWriter(new StringWriter(targetBuffer));
int sourceLineCount = 0;
int targetLineCount = 0;
DiffOwner previousOwner = DiffOwner.Both;
for (int i = 0; i < results.Length; i++)
{
DiffResult <String> result = results[i];
DiffOwner nextOwner = i + 1 < results.Length ? results[i + 1].Owner : DiffOwner.Both;
bool isolatedChange = previousOwner == DiffOwner.Both && nextOwner == DiffOwner.Both;
switch (result.Owner)
{
case DiffOwner.Target:
AppendLines(targetWriter, result.Value, isolatedChange ? "missing" : "changed");
targetLineCount += result.Value.Count;
break;
case DiffOwner.Source:
AppendLines(sourceWriter, result.Value, isolatedChange ? "missing" : "changed");
sourceLineCount += result.Value.Count;
break;
case DiffOwner.Both:
while (sourceLineCount < targetLineCount)
{
AppendLine(sourceWriter, " ", "blank");
sourceLineCount++;
}
while (targetLineCount < sourceLineCount)
{
AppendLine(targetWriter, " ", "blank");
targetLineCount++;
}
AppendLines(sourceWriter, result.Value);
AppendLines(targetWriter, result.Value);
sourceLineCount += result.Value.Count;
targetLineCount += result.Value.Count;
break;
}
previousOwner = result.Owner;
}
sourceWriter.Flush();
targetWriter.Flush();
SourceWebBrowser.Document.Body.InnerHtml = sourceBuffer.ToString();
TargetWebBrowser.Document.Body.InnerHtml = targetBuffer.ToString();
SourceWebBrowser.Document.Body.ScrollTop = 0;
TargetWebBrowser.Document.Body.ScrollTop = 0;
}
