internal TextData GetTextData(string eol, [CallerMemberName] string caller = null, [CallerLineNumber] int line = 0, [CallerFilePath] string file = null)
{
var t1 = Environment.TickCount;
TextData td;
if (mCachedBaseTextData.TryGetTarget(out BaseTextData btd))
{
// nothing
}
else
{
btd = RtbUtilities.GetBaseTextDataInternal(this, eol ?? "\n");
mCachedBaseTextData.SetTarget(btd);
}
td = RtbUtilities.GetTextDataFrom(this, btd, eol ?? btd.Eol);
var t2 = Environment.TickCount;
LastGetTextDataDuration = t2 - t1; // (wrapping is ignored)
//Debug.WriteLine( $"####### GetTextData: {LastGetTextDataDuration:F0} - {caller}:{line} '{Path.GetFileNameWithoutExtension( file )}'" );
return(td);
}
internal BaseTextData GetBaseTextData(string eol, [CallerMemberName] string caller = null, [CallerFilePath] string callerPath = null, [CallerLineNumber] int callerLine = 0)
{
//...
//var t1 = Environment.TickCount;
BaseTextData btd;
if (mCachedBaseTextData.TryGetTarget(out btd))
{
btd = RtbUtilities.GetBaseTextDataFrom(this, btd, eol ?? btd.Eol);
}
else
{
btd = RtbUtilities.GetBaseTextDataInternal(this, eol ?? "\n");
mCachedBaseTextData.SetTarget(btd);
}
//var t2 = Environment.TickCount;
//Debug.WriteLine( $"####### GetSimpleTextData {t2 - t1:F0}: {caller} - {Path.GetFileNameWithoutExtension( callerPath )}:{callerLine}" );
return(btd);
}
public void SetText(string value)
{
RtbUtilities.SetText(rtb, value);
UndoRedoHelper.Init( );
}
void RecolouringThreadProc(ICancellable cnc)
{
RegexMatches matches;
string eol;
bool show_captures;
lock (this)
{
matches = LastMatches;
eol = LastEol;
show_captures = LastShowCaptures;
}
TextData td = null;
Rect clip_rect = Rect.Empty;
int top_index = 0;
int bottom_index = 0;
UITaskHelper.Invoke(rtb, () =>
{
td = null;
var start_doc = rtb.Document.ContentStart;
var end_doc = rtb.Document.ContentStart;
if (!start_doc.HasValidLayout || !end_doc.HasValidLayout)
{
return;
}
var td0 = rtb.GetTextData(eol);
if (cnc.IsCancellationRequested)
{
return;
}
td = td0;
clip_rect = new Rect(new Size(rtb.ViewportWidth, rtb.ViewportHeight));
TextPointer top_pointer = rtb.GetPositionFromPoint(new Point(0, 0), snapToText: true).GetLineStartPosition(-1, out int _);
if (cnc.IsCancellationRequested)
{
return;
}
top_index = td.TextPointers.GetIndex(top_pointer, LogicalDirection.Backward);
if (cnc.IsCancellationRequested)
{
return;
}
if (top_index < 0)
{
top_index = 0;
}
TextPointer bottom_pointer = rtb.GetPositionFromPoint(new Point(0, rtb.ViewportHeight), snapToText: true).GetLineStartPosition(+1, out int lines_skipped);
if (cnc.IsCancellationRequested)
{
return;
}
if (bottom_pointer == null || lines_skipped == 0)
{
bottom_index = td.Text.Length;
}
else
{
bottom_index = td.TextPointers.GetIndex(bottom_pointer, LogicalDirection.Forward);
if (cnc.IsCancellationRequested)
{
return;
}
}
if (bottom_index > td.Text.Length)
{
bottom_index = td.Text.Length;
}
if (bottom_index < top_index)
{
bottom_index = top_index; // (including 'if bottom_index == 0')
}
});
if (cnc.IsCancellationRequested)
{
return;
}
if (td == null)
{
return;
}
if (td.Text.Length == 0)
{
return;
}
Debug.Assert(top_index >= 0);
Debug.Assert(bottom_index >= top_index);
Debug.Assert(bottom_index <= td.Text.Length);
// (NOTE. Overlaps are possible in this example: (?=(..))
var segments_and_styles = new List <(Segment segment, StyleInfo styleInfo)>( );
var segments_to_uncolour = new List <Segment>( );
segments_to_uncolour.Add(new Segment(top_index, bottom_index - top_index + 1));
if (matches != null && matches.Count > 0)
{
int i = -1;
foreach (var match in matches.Matches)
{
++i;
if (cnc.IsCancellationRequested)
{
break;
}
Debug.Assert(match.Success);
// TODO: consider these conditions for bi-directional text
if (match.TextIndex + match.TextLength < top_index)
{
continue;
}
if (match.TextIndex > bottom_index)
{
continue; // (do not break; the order of indices is unspecified)
}
var highlight_index = unchecked (i % HighlightStyleInfos.Length);
Segment.Except(segments_to_uncolour, match.TextIndex, match.TextLength);
segments_and_styles.Add((new Segment(match.TextIndex, match.TextLength), HighlightStyleInfos[highlight_index]));
}
}
if (cnc.IsCancellationRequested)
{
return;
}
List <(Segment segment, StyleInfo styleInfo)> segments_to_uncolour_with_style =
segments_to_uncolour
.Select(s => (s, NormalStyleInfo))
.ToList( );
if (cnc.IsCancellationRequested)
{
return;
}
int center_index = (top_index + bottom_index) / 2;
var all_segments_and_styles =
segments_and_styles.Concat(segments_to_uncolour_with_style)
.OrderBy(s => Math.Abs(center_index - (s.segment.Index + s.segment.Length / 2)))
.ToList( );
if (cnc.IsCancellationRequested)
{
return;
}
RtbUtilities.ApplyStyle(cnc, ChangeEventHelper, pbProgress, td, all_segments_and_styles);
if (cnc.IsCancellationRequested)
{
return;
}
UITaskHelper.BeginInvoke(pbProgress, () =>
{
pbProgress.Visibility = Visibility.Hidden;
});
}
void RecolouringThreadProc(ICancellable cnc)
{
IRegexEngine regex_engine;
string eol;
lock (this)
{
regex_engine = mRegexEngine;
eol = mEol;
}
if (regex_engine == null)
{
return;
}
TextData td = null;
Rect clip_rect = Rect.Empty;
int top_index = 0;
int bottom_index = 0;
UITaskHelper.Invoke(rtb, () =>
{
td = null;
var start_doc = rtb.Document.ContentStart;
var end_doc = rtb.Document.ContentStart;
if (!start_doc.HasValidLayout || !end_doc.HasValidLayout)
{
return;
}
var td0 = rtb.GetTextData(eol);
if (cnc.IsCancellationRequested)
{
return;
}
td = td0;
clip_rect = new Rect(new Size(rtb.ViewportWidth, rtb.ViewportHeight));
TextPointer top_pointer = rtb.GetPositionFromPoint(new Point(0, 0), snapToText: true).GetLineStartPosition(-1, out int _);
if (cnc.IsCancellationRequested)
{
return;
}
top_index = td.TextPointers.GetIndex(top_pointer, LogicalDirection.Backward);
if (cnc.IsCancellationRequested)
{
return;
}
if (top_index < 0)
{
top_index = 0;
}
TextPointer bottom_pointer = rtb.GetPositionFromPoint(new Point(0, rtb.ViewportHeight), snapToText: true).GetLineStartPosition(+1, out int lines_skipped);
if (cnc.IsCancellationRequested)
{
return;
}
if (bottom_pointer == null || lines_skipped == 0)
{
bottom_index = td.Text.Length;
}
else
{
bottom_index = td.TextPointers.GetIndex(bottom_pointer, LogicalDirection.Forward);
if (cnc.IsCancellationRequested)
{
return;
}
}
if (bottom_index > td.Text.Length)
{
bottom_index = td.Text.Length;
}
if (bottom_index < top_index)
{
bottom_index = top_index; // (including 'if bottom_index == 0')
}
});
if (cnc.IsCancellationRequested)
{
return;
}
if (td == null)
{
return;
}
if (td.Text.Length == 0)
{
return;
}
Debug.Assert(top_index >= 0);
Debug.Assert(bottom_index >= top_index);
//Debug.Assert( bottom_index < td.OldPointers.Count );
Debug.Assert(bottom_index <= td.Text.Length);
var visible_segment = new Segment(top_index, bottom_index - top_index + 1);
var segments_to_colourise = new ColouredSegments( );
regex_engine.ColourisePattern(cnc, segments_to_colourise, td.Text, visible_segment);
if (cnc.IsCancellationRequested)
{
return;
}
int center_index = (top_index + bottom_index) / 2;
var arranged_escapes = segments_to_colourise.Escapes
.OrderBy(s => Math.Abs(center_index - (s.Index + s.Length / 2)))
.ToList( );
RtbUtilities.ApplyStyle(cnc, ChangeEventHelper, null, td, segments_to_colourise.Comments, PatternCommentStyleInfo);
RtbUtilities.ApplyStyle(cnc, ChangeEventHelper, null, td, arranged_escapes, PatternEscapeStyleInfo);
RtbUtilities.ApplyStyle(cnc, ChangeEventHelper, null, td, segments_to_colourise.GroupNames, PatternGroupNameStyleInfo);
var uncovered_segments = new List <Segment> {
new Segment(0, td.Text.Length)
};
foreach (var s in segments_to_colourise.All.SelectMany(s => s))
{
if (cnc.IsCancellationRequested)
{
return;
}
Segment.Except(uncovered_segments, s);
}
Segment.Except(uncovered_segments, LeftHighlightedParenthesis);
Segment.Except(uncovered_segments, RightHighlightedParenthesis);
Segment.Except(uncovered_segments, LeftHighlightedBracket);
Segment.Except(uncovered_segments, RightHighlightedBracket);
Segment.Except(uncovered_segments, LeftHighlightedCurlyBrace);
Segment.Except(uncovered_segments, RightHighlightedCurlyBrace);
var segments_to_uncolour =
uncovered_segments
.Select(s => Segment.Intersection(s, visible_segment))
.Where(s => !s.IsEmpty)
.OrderBy(s => Math.Abs(center_index - (s.Index + s.Length / 2)))
.ToList( );
if (cnc.IsCancellationRequested)
{
return;
}
RtbUtilities.ApplyStyle(cnc, ChangeEventHelper, null, td, segments_to_uncolour, PatternNormalStyleInfo);
}
