private bool GetRunContainingCp(int index, out OrderedTextRun run)
{
foreach (var ordered in ReorderRuns())
{
if (index >= ordered.CpFirst && index < ordered.CpFirst + ordered.Range.Length && !(ordered.TextRun is TextEndOfLine))
{
run = ordered;
return(true);
}
}
run = default(OrderedTextRun);
return(false);
}
private List <OrderedTextRun> ReorderRuns()
{
var result = new List <OrderedTextRun> ();
var store = _fullText.TextStore;
var settings = store.Settings;
int cpFirst = store.CpFirst;
int pos = cpFirst;
int remaining_length = Length;
// FIXME: Fetch bidi levels, reset to 0 for trailing whitespace
while (remaining_length > 0)
{
TextRun run;
int runLength;
CharacterBufferRange chars = settings.FetchTextRun(pos, cpFirst, out run, out runLength);
if (runLength > remaining_length)
{
runLength = remaining_length;
chars = new CharacterBufferRange(chars, 0, runLength);
}
// FIXME: determine bidi level and shorten runLength to keep bidi level constant
var ordered = new OrderedTextRun();
ordered.BidiLevel = 0;
ordered.TextRun = run;
ordered.Range = chars;
ordered.CpFirst = pos;
result.Add(ordered);
remaining_length -= runLength;
pos += runLength;
}
// FIXME: reverse bidi levels
return(result);
}
