private void AddExtraPatchHighlighting()
{
var document = TextEditor.Document;
var markerStrategy = document.MarkerStrategy;
for (var line = 0; line + 3 < document.TotalNumberOfLines; line++)
{
var lineSegment1 = document.GetLineSegment(line);
var lineSegment2 = document.GetLineSegment(line + 1);
var lineSegment3 = document.GetLineSegment(line + 2);
var lineSegment4 = document.GetLineSegment(line + 3);
if (document.GetCharAt(lineSegment1.Offset) != ' ' ||
document.GetCharAt(lineSegment2.Offset) != '-' ||
document.GetCharAt(lineSegment3.Offset) != '+' ||
(lineSegment4.Length > 0 && document.GetCharAt(lineSegment4.Offset) != ' ')) //fix for issue 173
continue;
var beginOffset = 0;
var endOffset = lineSegment3.Length;
var reverseOffset = 0;
for (; beginOffset < endOffset; beginOffset++)
{
if (!document.GetCharAt(lineSegment3.Offset + beginOffset).Equals('+') &&
!document.GetCharAt(lineSegment2.Offset + beginOffset).Equals('-') &&
!document.GetCharAt(lineSegment3.Offset + beginOffset).Equals(
document.GetCharAt(lineSegment2.Offset + beginOffset)))
break;
}
for (; endOffset > beginOffset; endOffset--)
{
reverseOffset = lineSegment3.Length - endOffset;
if (!document.GetCharAt(lineSegment3.Offset + lineSegment3.Length - 1 - reverseOffset)
.Equals('+') &&
!document.GetCharAt(lineSegment2.Offset + lineSegment2.Length - 1 - reverseOffset)
.Equals('-') &&
!document.GetCharAt(lineSegment3.Offset + lineSegment3.Length - 1 - reverseOffset).
Equals(document.GetCharAt(lineSegment2.Offset + lineSegment2.Length - 1 -
reverseOffset)))
break;
}
Color color;
if (lineSegment3.Length - beginOffset - reverseOffset > 0)
{
color = Settings.DiffAddedExtraColor;
markerStrategy.AddMarker(new TextMarker(lineSegment3.Offset + beginOffset,
lineSegment3.Length - beginOffset - reverseOffset,
TextMarkerType.SolidBlock, color,
ColorHelper.GetForeColorForBackColor(color)));
}
if (lineSegment2.Length - beginOffset - reverseOffset > 0)
{
color = Settings.DiffRemovedExtraColor;
markerStrategy.AddMarker(new TextMarker(lineSegment2.Offset + beginOffset,
lineSegment2.Length - beginOffset - reverseOffset,
TextMarkerType.SolidBlock, color,
ColorHelper.GetForeColorForBackColor(color)));
}
}
}
public void AddPatchHighlighting()
{
var document = TextEditor.Document;
var markerStrategy = document.MarkerStrategy;
markerStrategy.RemoveAll(m => true);
bool forceAbort = false;
AddExtraPatchHighlighting();
for (var line = 0; line < document.TotalNumberOfLines && !forceAbort; line++)
{
var lineSegment = document.GetLineSegment(line);
if (lineSegment.TotalLength == 0)
continue;
if (line == document.TotalNumberOfLines - 1)
forceAbort = true;
if (document.GetCharAt(lineSegment.Offset) == '+')
{
var color = Settings.DiffAddedColor;
var endLine = document.GetLineSegment(line);
for (; line < document.TotalNumberOfLines && document.GetCharAt(endLine.Offset) == '+'; line++)
{
endLine = document.GetLineSegment(line);
}
line--;
line--;
endLine = document.GetLineSegment(line);
markerStrategy.AddMarker(new TextMarker(lineSegment.Offset,
(endLine.Offset + endLine.TotalLength) -
lineSegment.Offset, TextMarkerType.SolidBlock, color,
ColorHelper.GetForeColorForBackColor(color)));
}
if (document.GetCharAt(lineSegment.Offset) == '-')
{
var color = Settings.DiffRemovedColor;
var endLine = document.GetLineSegment(line);
for (; line < document.TotalNumberOfLines && document.GetCharAt(endLine.Offset) == '-'; line++)
{
endLine = document.GetLineSegment(line);
}
line--;
line--;
endLine = document.GetLineSegment(line);
markerStrategy.AddMarker(new TextMarker(lineSegment.Offset,
(endLine.Offset + endLine.TotalLength) -
lineSegment.Offset, TextMarkerType.SolidBlock, color,
ColorHelper.GetForeColorForBackColor(color)));
}
if (document.GetCharAt(lineSegment.Offset) == '@')
{
var color = Settings.DiffSectionColor;
var endLine = document.GetLineSegment(line);
for (; line < document.TotalNumberOfLines && document.GetCharAt(endLine.Offset) == '@'; line++)
{
endLine = document.GetLineSegment(line);
}
line--;
line--;
endLine = document.GetLineSegment(line);
markerStrategy.AddMarker(new TextMarker(lineSegment.Offset,
(endLine.Offset + endLine.TotalLength) -
lineSegment.Offset, TextMarkerType.SolidBlock, color,
ColorHelper.GetForeColorForBackColor(color)));
}
}
}