void JoinWithNextLine()
{
if (IsLastLine)
{
return;
}
//
TextLineBox lowerLine = _textFlowLayer.GetTextLine(_currentLineNumber + 1);
this.LocalSuspendLineReArrange();
int cx = 0;
Run lastTextRun = this.LastRun;
if (lastTextRun != null)
{
cx = lastTextRun.Right;
}
foreach (Run r in lowerLine._runs)
{
this.AddLast(r);
Run.DirectSetLocation(r, cx, 0);
cx += r.Width;
}
this.LocalResumeLineReArrange();
this.EndWithLineBreak = lowerLine.EndWithLineBreak;
_textFlowLayer.Remove(lowerLine._currentLineNumber);
}
public void AddLineBreakAfter(Run afterTextRun)
{
if (afterTextRun == null)
{
this.EndWithLineBreak = true;
TextLineBox newline = _textFlowLayer.InsertNewLine(_currentLineNumber + 1);
//
if (_textFlowLayer.LineCount - 1 != newline.LineNumber)
{
newline.EndWithLineBreak = true;
}
}
else if (afterTextRun.NextRun == null)
{
this.EndWithLineBreak = true;
TextLineBox newline = _textFlowLayer.InsertNewLine(_currentLineNumber + 1);
//
if (_textFlowLayer.LineCount - 1 != newline.LineNumber)
{
newline.EndWithLineBreak = true;
}
}
else
{
using (RunListPool.Borrow(out List <Run> tempTextRuns))
{
if (afterTextRun != null)
{
foreach (Run t in GetRunIterForward(afterTextRun.NextRun))
{
tempTextRuns.Add(t);
}
}
bool thisEndWithLineBreak = this.EndWithLineBreak;
this.EndWithLineBreak = true;
this.LocalSuspendLineReArrange();
TextLineBox newTextline = _textFlowLayer.InsertNewLine(_currentLineNumber + 1);
newTextline.EndWithLineBreak = thisEndWithLineBreak;
//
int j = tempTextRuns.Count;
newTextline.LocalSuspendLineReArrange();
int cx = 0;
for (int i = 0; i < j; ++i)
{
Run t = tempTextRuns[i];
this.Remove(t);
newTextline.AddLast(t);
Run.DirectSetLocation(t, cx, 0);
cx += t.Width;
}
newTextline.LocalResumeLineReArrange();
this.LocalResumeLineReArrange();
}
}
}
public TempTextLineCopyContext(TextLineBox textline, out Typography.Text.TextBufferSpan buffSpan)
{
_tempStBuilder = StringBuilderPool <StringBuilderPoolOwner> .GetFreeStringBuilder();
textline.CopyLineContent(_tempStBuilder);
int len = _tempStBuilder.Length;
char[] charBuffer = new char[len];
_tempStBuilder.CopyTo(0, charBuffer, 0, len);
buffSpan = new Typography.Text.TextBufferSpan(charBuffer);
}
public void MoveToLine(int lineNumber)
{
_currentLine = _textFlowLayer.GetTextLine(lineNumber);
_currentLineY = _currentLine.Top;
//if current line is a blank line
//not first run => currentTextRun= null
_currentTextRun = _currentLine.FirstRun;
_rCharOffset = 0;
_rPixelOffset = 0;
caret_char_index = 0;
_caretXPos = 0;
}
public TextFlowWalkerBase(TextFlowLayer flowlayer)
{
#if DEBUG
this.dbug_MyId = dbugTotalId;
dbugTotalId++;
#endif
_textFlowLayer = flowlayer;
//flowlayer.Reflow += flowlayer_Reflow;
_currentLine = flowlayer.GetTextLine(0);
if (_currentLine.FirstRun != null)
{
_currentTextRun = _currentLine.FirstRun;
}
}
public VisualPointInfo FindTextRunOnPosition(int x, int y)
{
if (y < 0)
{
return(null);
}
else
{
int j = _lineEditor.LineCount;
if (j > 0)
{
TextLineBox textLine = _lineEditor.GetTextLineAtPos(y);
if (textLine != null)
{
return(textLine.GetTextPointInfoFromCaretPoint(x));
}
}
return(null);
}
}
public Rectangle dbugGetRectAreaOf(int beginlineNum, int beginColumnNum, int endLineNum, int endColumnNum)
{
TextFlowLayer flowLayer = _textLayer;
TextLineBox beginLine = flowLayer.GetTextLineAtPos(beginlineNum);
if (beginLine == null)
{
return(Rectangle.Empty);
}
if (beginlineNum == endLineNum)
{
VisualPointInfo beginPoint = beginLine.GetTextPointInfoFromCharIndex(beginColumnNum);
VisualPointInfo endPoint = beginLine.GetTextPointInfoFromCharIndex(endColumnNum);
return(new Rectangle(beginPoint.X, beginLine.Top, endPoint.X, beginLine.ActualLineHeight));
}
else
{
VisualPointInfo beginPoint = beginLine.GetTextPointInfoFromCharIndex(beginColumnNum);
TextLineBox endLine = flowLayer.GetTextLineAtPos(endLineNum);
VisualPointInfo endPoint = endLine.GetTextPointInfoFromCharIndex(endColumnNum);
return(new Rectangle(beginPoint.X, beginLine.Top, endPoint.X, beginLine.ActualLineHeight));
}
}
void AddLineBreakBefore(Run beforeTextRun)
{
if (beforeTextRun == null)
{
this.EndWithLineBreak = true;
_textFlowLayer.InsertNewLine(_currentLineNumber + 1);
}
else
{
//TODO: use pool
using (RunListPool.Borrow(out List <Run> tempTextRuns))
{
if (beforeTextRun != null)
{
foreach (Run t in GetRunIterForward(beforeTextRun))
{
tempTextRuns.Add(t);
}
}
this.EndWithLineBreak = true;
TextLineBox newTextline = _textFlowLayer.InsertNewLine(_currentLineNumber + 1);
//
this.LocalSuspendLineReArrange();
newTextline.LocalSuspendLineReArrange();
int j = tempTextRuns.Count;
for (int i = 0; i < j; ++i)
{
Run t = tempTextRuns[i];
this.Remove(t);
newTextline.AddLast(t);
}
this.LocalResumeLineReArrange();
newTextline.LocalResumeLineReArrange();
}
}
}
public void Copy(VisualSelectionRange selectionRange, TextRangeCopy output)
{
EditableVisualPointInfo startPoint = selectionRange.StartPoint;
EditableVisualPointInfo endPoint = selectionRange.EndPoint;
if (startPoint.Run != null)
{
if (startPoint.Run == endPoint.Run)
{
CopyRun elem =
startPoint.Run.Copy(
startPoint.RunLocalSelectedIndex,
endPoint.LineCharIndex - startPoint.LineCharIndex);
if (elem != null)
{
output.AppendRun(elem);
}
}
else
{
GetStartAndStopLine(startPoint, endPoint, out TextLineBox startLine, out TextLineBox stopLine);
if (startLine == stopLine)
{
CopyRun rightPart = startPoint.Run.Copy(startPoint.RunLocalSelectedIndex);
if (rightPart != null)
{
output.AppendRun(rightPart);
}
if (startPoint.Run.NextRun != endPoint.Run)
{
foreach (Run run in _textFlowLayer.TextRunForward(
startPoint.Run.NextRun,
endPoint.Run.PrevRun))
{
output.AppendRun(run);
}
}
CopyRun leftPart = endPoint.Run.LeftCopy(endPoint.RunLocalSelectedIndex);
if (leftPart != null)
{
output.AppendRun(leftPart);
}
}
else
{
int startLineId = startPoint.LineId;
int stopLineId = endPoint.LineId;
startLine.RightCopy(startPoint, output);
for (int i = startLineId + 1; i < stopLineId; i++)
{
//begine new line
output.AppendNewLine();
TextLineBox line = _textFlowLayer.GetTextLine(i);
line.Copy(output);
}
if (endPoint.LineCharIndex > -1)
{
output.AppendNewLine();
stopLine.LeftCopy(endPoint, output);
}
}
}
}
else
{
GetStartAndStopLine(startPoint, endPoint, out TextLineBox startLine, out TextLineBox stopLine);
if (startLine == stopLine)
{
if (startPoint.LineCharIndex == -1)
{
foreach (Run t in _textFlowLayer.TextRunForward(
startPoint.Run,
endPoint.Run.PrevRun))
{
output.AppendRun(t);
}
CopyRun postCutTextRun = endPoint.Run.Copy(endPoint.RunLocalSelectedIndex + 1);
if (postCutTextRun != null)
{
output.AppendRun(postCutTextRun);
}
}
else
{
CopyRun rightPart = startPoint.Run.Copy(startPoint.RunLocalSelectedIndex + 1);
if (rightPart != null)
{
output.AppendRun(rightPart);
}
foreach (Run t in _textFlowLayer.TextRunForward(
startPoint.Run.NextRun,
endPoint.Run.PrevRun))
{
output.AppendRun(t.CreateCopy());
}
CopyRun leftPart = endPoint.Run.LeftCopy(startPoint.RunLocalSelectedIndex);
if (leftPart != null)
{
output.AppendRun(leftPart);
}
}
}
else
{
int startLineId = startPoint.LineId;
int stopLineId = endPoint.LineId;
startLine.RightCopy(startPoint, output);
for (int i = startLineId + 1; i < stopLineId; i++)
{
output.AppendNewLine();
TextLineBox line = _textFlowLayer.GetTextLine(i);
line.Copy(output);
}
stopLine.LeftCopy(endPoint, output);
}
}
}
void GetStartAndStopLine(EditableVisualPointInfo startPoint, EditableVisualPointInfo endPoint, out TextLineBox startLine, out TextLineBox stopLine)
{
startLine = (startPoint.LineId == _currentLineNumber) ? this : _textFlowLayer.GetTextLine(startPoint.LineId);
stopLine = (endPoint.LineId == _currentLineNumber) ? this : _textFlowLayer.GetTextLine(endPoint.LineId);
}
internal SelectionRangeInfo Split(VisualSelectionRange selectionRange)
{
selectionRange.SwapIfUnOrder();
EditableVisualPointInfo startPoint = selectionRange.StartPoint;
EditableVisualPointInfo endPoint = selectionRange.EndPoint;
if (startPoint.Run == endPoint.Run)
{
Run toBeCutTextRun = startPoint.Run;
CopyRun leftPart = toBeCutTextRun.LeftCopy(startPoint.RunLocalSelectedIndex);
CopyRun middlePart = toBeCutTextRun.Copy(startPoint.RunLocalSelectedIndex, endPoint.LineCharIndex - startPoint.LineCharIndex);
CopyRun rightPart = toBeCutTextRun.Copy(endPoint.RunLocalSelectedIndex);
EditableVisualPointInfo newStartRangePointInfo = null;
EditableVisualPointInfo newEndRangePointInfo = null;
TextLineBox line = this;
if (startPoint.LineId != _currentLineNumber)
{
line = _textFlowLayer.GetTextLine(startPoint.LineId);
}
line.LocalSuspendLineReArrange();
if (leftPart != null)
{
Run leftRun = line.AddBefore(toBeCutTextRun, leftPart);
newStartRangePointInfo = CreateTextPointInfo(
startPoint.LineId, startPoint.LineCharIndex, startPoint.X,
leftRun,
startPoint.TextRunCharOffset, startPoint.TextRunPixelOffset);
}
else
{
//no left part,
//so we connect to prev text run
Run prevTxtRun = startPoint.Run.PrevRun;
if (prevTxtRun != null)
{
newStartRangePointInfo = CreateTextPointInfo(
startPoint.LineId, startPoint.LineCharIndex, startPoint.X,
prevTxtRun,
startPoint.TextRunCharOffset - leftPart.CharacterCount,
startPoint.TextRunPixelOffset - prevTxtRun.Width);
}
else
{
//no prev run, we are at the begining of the line
newStartRangePointInfo = CreateTextPointInfo(
startPoint.LineId,
startPoint.LineCharIndex,
0,
null,
0, 0);
}
}
if (rightPart != null)
{
Run rightRun = line.AddAfter(toBeCutTextRun, rightPart);
newEndRangePointInfo =
CreateTextPointInfo(
endPoint.LineId,
endPoint.LineCharIndex,
endPoint.X,
null, ///??
startPoint.TextRunCharOffset + middlePart.CharacterCount,
startPoint.TextRunPixelOffset + MeasureCopyRunLength(middlePart).Width);
}
else
{
Run nextTxtRun = endPoint.Run.NextRun;
if (nextTxtRun != null)
{
newEndRangePointInfo = CreateTextPointInfo(
endPoint.LineId,
endPoint.LineCharIndex,
endPoint.X,
null, ///??
endPoint.TextRunPixelOffset + endPoint.Run.CharacterCount,
endPoint.TextRunPixelOffset + endPoint.Run.Width);
}
else
{
newEndRangePointInfo = CreateTextPointInfo(
endPoint.LineId,
endPoint.LineCharIndex,
endPoint.X,
null,
endPoint.TextRunCharOffset,
endPoint.TextRunPixelOffset);
}
}
if (middlePart != null)
{
line.AddAfter(toBeCutTextRun, middlePart);
}
else
{
throw new NotSupportedException();
}
line.Remove(toBeCutTextRun);
line.LocalResumeLineReArrange();
return(new SelectionRangeInfo(newStartRangePointInfo, newEndRangePointInfo));
}
else
{
TextLineBox workingLine = this;
if (startPoint.LineId != _currentLineNumber)
{
workingLine = _textFlowLayer.GetTextLine(startPoint.LineId);
}
EditableVisualPointInfo newStartPoint = workingLine.Split(startPoint);
workingLine = this;
if (endPoint.LineId != _currentLineNumber)
{
workingLine = _textFlowLayer.GetTextLine(endPoint.LineId);
}
EditableVisualPointInfo newEndPoint = workingLine.Split(endPoint);
return(new SelectionRangeInfo(newStartPoint, newEndPoint));
}
}
internal void Remove(VisualSelectionRange selectionRange)
{
EditableVisualPointInfo startPoint = selectionRange.StartPoint;
EditableVisualPointInfo endPoint = selectionRange.EndPoint;
if (startPoint.Run != null)
{
if (startPoint.Run == endPoint.Run)
{
Run removedRun = startPoint.Run;
Run.InnerRemove(removedRun,
startPoint.RunLocalSelectedIndex,
endPoint.LineCharIndex - startPoint.LineCharIndex, false);
if (removedRun.CharacterCount == 0)
{
if (startPoint.LineId == _currentLineNumber)
{
this.Remove(removedRun);
}
else
{
TextLineBox line = _textFlowLayer.GetTextLine(startPoint.LineId);
line.Remove(removedRun);
}
}
}
else
{
GetStartAndStopLine(startPoint, endPoint, out TextLineBox startLine, out TextLineBox stopLine);
EditableVisualPointInfo newStartPoint = startLine.Split(startPoint);
EditableVisualPointInfo newStopPoint = stopLine.Split(endPoint);
if (startLine == stopLine)
{
if (newStartPoint.Run != null)
{
LinkedList <Run> tobeRemoveRuns = new LinkedList <Run>();
if (newStartPoint.LineCharIndex == 0)
{
foreach (Run t in _textFlowLayer.TextRunForward(
newStartPoint.Run,
newStopPoint.Run))
{
tobeRemoveRuns.AddLast(t);
}
}
else
{
foreach (Run t in _textFlowLayer.TextRunForward(
newStartPoint.Run.NextRun,
newStopPoint.Run))
{
tobeRemoveRuns.AddLast(t);
}
}
startLine.LocalSuspendLineReArrange();
foreach (Run t in tobeRemoveRuns)
{
startLine.Remove(t);
}
startLine.LocalResumeLineReArrange();
}
else
{
//this may be the blank line
startLine.Clear();
#if DEBUG
//TODO: review here again
//System.Diagnostics.Debug.WriteLine("EditableTextLine_adv1");
#endif
}
}
else
{
int startLineId = newStartPoint.LineId;
int stopLineId = newStopPoint.LineId;
if (newStopPoint.LineCharIndex > 0)
{
stopLine.RemoveLeft(newStopPoint.Run);
}
for (int i = stopLineId - 1; i > startLineId; i--)
{
TextLineBox line = _textFlowLayer.GetTextLine(i);
line.Clear();
line.JoinWithNextLine();
}
if (newStartPoint.LineCharIndex == 0)
{
startLine.RemoveRight(newStartPoint.Run);
}
else
{
Run nextRun = (newStartPoint.Run).NextRun;
if (nextRun != null)
{
startLine.RemoveRight(nextRun);
}
}
startLine.JoinWithNextLine();
}
}
}
else
{
GetStartAndStopLine(startPoint, endPoint, out TextLineBox startLine, out TextLineBox stopLine);
EditableVisualPointInfo newStartPoint = startLine.Split(startPoint);
EditableVisualPointInfo newStopPoint = stopLine.Split(endPoint);
if (startLine == stopLine)
{
if (newStartPoint.Run != null)
{
LinkedList <Run> tobeRemoveRuns = new LinkedList <Run>();
if (newStartPoint.LineCharIndex == -1)
{
foreach (Run t in _textFlowLayer.TextRunForward(
newStartPoint.Run,
newStopPoint.Run))
{
tobeRemoveRuns.AddLast(t);
}
}
else
{
foreach (Run t in _textFlowLayer.TextRunForward(
newStartPoint.Run.NextRun,
newStopPoint.Run))
{
tobeRemoveRuns.AddLast(t);
}
}
foreach (Run t in tobeRemoveRuns)
{
startLine.Remove(t);
}
}
else
{
throw new NotSupportedException();
}
}
else
{
int startLineId = newStartPoint.LineId;
int stopLineId = newStopPoint.LineId;
if (newStopPoint.LineCharIndex > -1)
{
stopLine.RemoveLeft(newStopPoint.Run);
}
for (int i = stopLineId - 1; i > startLineId; i--)
{
TextLineBox line = _textFlowLayer.GetTextLine(i);
line.Clear();
line.JoinWithNextLine();
}
if (newStartPoint.LineCharIndex == -1)
{
//TODO: review here again
//at this point newStartPoint.TextRun should always null
if (newStartPoint.Run != null)
{
startLine.RemoveRight(newStartPoint.Run);
}
}
else
{
//at this point newStartPoint.TextRun should always null
//TODO newStartPoint.TextRun == null???
if (newStartPoint.Run != null)
{
Run nextRun = newStartPoint.Run.NextRun;
if (nextRun != null)
{
startLine.RemoveRight(nextRun);
}
}
}
startLine.JoinWithNextLine();
}
}
}
public static void InnerDoJoinWithNextLine(TextLineBox line)
{
line.JoinWithNextLine();
}
internal void DrawChildContentLcdEffectText(DrawBoard d, UpdateArea updateArea, VisualSelectionRange selRange)
{
List <TextLineBox> lines = _lines;
int renderAreaTop = updateArea.Top;
int renderAreaBottom = updateArea.Bottom;
bool foundFirstLine = false;
int j = lines.Count;
int enter_canvasX = d.OriginX;
int enter_canvasY = d.OriginY;
Rectangle currentClip = d.CurrentClipRect;
Color prev_colorHint = d.TextBackgroundColorHint;
for (int i = 0; i < j; ++i)
{
//draw textline, along with visual selection range
TextLineBox line = lines[i];
int linetop = line.Top;
if (!foundFirstLine)
{
if (linetop + line.ActualLineHeight < renderAreaTop)
{
continue;
}
else
{
foundFirstLine = true;
}
}
else
{
if (linetop > renderAreaBottom)
{
if (VisualLineOverlapped)
{
//more check
if (i < j - 1)
{
//check next line
TextLineBox lowerLine = lines[i + 1];
if (lowerLine.Top - lowerLine.OverlappedTop > linetop)
{
break;
}
}
}
else
{
break;
}
}
}
updateArea.OffsetY(-linetop); //offset
switch (selRange.GetLineClip(i, out int clipLeft, out int clipWidth))
{
public void AcceptVisitor(RunVisitor visitor)
{
//similar to Draw...
List <TextLineBox> lines = _lines;
int renderAreaTop;
int renderAreaBottom;
if (visitor.UseUpdateArea)
{
renderAreaTop = visitor.UpdateArea.Top;
renderAreaBottom = visitor.UpdateArea.Bottom;
}
else
{
renderAreaTop = 0;
renderAreaBottom = this.Bottom;
}
bool foundFirstLine = false;
int j = lines.Count;
for (int i = 0; i < j; ++i)
{
TextLineBox line = lines[i];
int y = line.Top;
if (visitor.StopOnNextLine)
{
break; //break from for loop=> go to end
}
visitor.VisitNewLine(y); //***
if (!visitor.SkipCurrentLineEditableRunIter)
{
LinkedListNode <Run> curNode = line.First;
if (!foundFirstLine)
{
if (y + line.ActualLineHeight < renderAreaTop)
{
continue;
}
else
{
foundFirstLine = true;
}
}
else
{
if (VisualLineOverlapped)
{
if (i < j - 1)
{
//check next line
TextLineBox lowerLine = lines[i + 1];
if (lowerLine.Top > y)
{
break;
}
}
else
{
break;
}
}
else
{
if (y > renderAreaBottom)
{
break;
}
}
}
while (curNode != null)
{
Run child = curNode.Value;
//iter entire line, not check horizontal line intersect
visitor.VisitEditableRun(child);
curNode = curNode.Next;
}
}
}
}
public void JoinWithNextLine()
{
TextLineBox.InnerDoJoinWithNextLine(this.CurrentLine);
EnsureCurrentTextRun();
}