private void DoInplaceHighlighting(
IMessage msg,
PointF location,
StringSlice text,
int lineBegin, int lineEnd,
IHighlightingHandler handler,
Brush brush)
{
if (handler != null)
{
foreach (var hlRange in handler.GetHighlightingRanges(msg))
{
int?hlBegin = null;
int?hlEnd = null;
if (hlRange.Item1 >= lineBegin && hlRange.Item1 <= lineEnd)
{
hlBegin = hlRange.Item1;
}
if (hlRange.Item2 >= lineBegin && hlRange.Item2 <= lineEnd)
{
hlEnd = hlRange.Item2;
}
if (hlBegin != null || hlEnd != null)
{
var tmp = DrawingUtils.GetLineSubstringBounds(
text.SubString(lineBegin, lineEnd - lineBegin).Value,
hlBegin.GetValueOrDefault(lineBegin) - lineBegin,
hlEnd.GetValueOrDefault(lineEnd) - lineBegin,
ctx.Canvas,
ctx.Font,
ctx.TextFormat,
m.MessageRect, location.X);
tmp.Inflate(0, -1);
if (brush == null)
{
var cl = hlRange.Item3.GetBackgroundColor();
if (cl != null)
{
using (var tmpBrush = new Brush(cl.Value.ToColor()))
{
FillInplaceHightlightRectangle(ctx, tmp, tmpBrush);
}
}
}
else
{
FillInplaceHightlightRectangle(ctx, tmp, brush);
}
}
}
}
}