private void PaintTheTextBoxes()
{
var prevBefore = rtbBefore.SelectionStart;
var prevAfter = rtbAfter.SelectionStart;
rtbBefore.SuspendLayout();
rtbAfter.SuspendLayout();
ResetColor(rtbBefore);
ResetColor(rtbAfter);
foreach (var added in _codeDiff.GetAdded())
{
ColorSection(rtbAfter, added.After.Span.Start, added.After.Span.Length, Color.LightGreen);
}
foreach (var added in _codeDiff.GetRemoved())
{
ColorSection(rtbBefore, added.Before.Span.Start, added.Before.Span.Length, Color.LightSalmon);
}
foreach (var added in _codeDiff.GetModified())
{
ColorSection(rtbAfter, added.After.Span.Start, added.After.Span.Length, Color.LightGreen);
ColorSection(rtbBefore, added.Before.Span.Start, added.Before.Span.Length, Color.LightSalmon);
}
rtbBefore.ResumeLayout();
rtbAfter.ResumeLayout();
rtbBefore.SelectionStart = prevBefore;
rtbBefore.SelectionLength = 0;
rtbAfter.SelectionStart = prevAfter;
rtbAfter.SelectionLength = 0;
}