internal EditableTextLine GetTextLineAtPos(int y)
{
if (lineCollection != null)
{
if (lineCollection is List <EditableTextLine> )
{
List <EditableTextLine> lines = lineCollection as List <EditableTextLine>;
if (lines != null)
{
int j = lines.Count;
for (int i = 0; i < j; ++i)
{
EditableTextLine line = lines[i];
if (line.IntersectsWith(y))
{
return(line);
}
}
}
}
else
{
EditableTextLine line = (EditableTextLine)lineCollection;
if (line.IntersectsWith(y))
{
return(line);
}
}
}
return(null);
}
internal EditableTextLine InsertNewLine(int insertAt)
{
EditableTextLine newLine = new EditableTextLine(this);
this.InsertLine(insertAt, newLine);
return(newLine);
}
public void Accept()
{
EditableRun v = null;
int sourceLineId = feeder.CurrentLineId;
if (this.currentRelocatorLineId == sourceLineId)
{
}
else if (sourceLineId > this.currentRelocatorLineId)
{
v = feeder.UnsafeRemoveCurrent();
currentLine.UnsafeAddLast(v);
if (feeder.IsUnStableBlankLine)
{
feeder.RemoveCurrentBlankLine();
}
}
else
{
v = feeder.CurrentRun;
EditableTextLine sourceLine = v.OwnerEditableLine;
sourceLine.SplitToNewLine(v);
feeder.Read(); currentRelocatorLineId = sourceLineId + 1;
currentLine = sourceLines[currentRelocatorLineId];
}
isFirstRunOfLine = false;
}
internal IEnumerable <EditableRun> GetDrawingIter(EditableRun start, EditableRun stop)
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
int j = lines.Count;
for (int i = 0; i < j; ++i)
{
LinkedListNode <EditableRun> curNode = lines[i].Last;
while (curNode != null)
{
yield return(curNode.Value);
curNode = curNode.Previous;
}
}
}
else
{
EditableTextLine onlyLine = (EditableTextLine)lineCollection;
LinkedListNode <EditableRun> curNode = onlyLine.Last;
while (curNode != null)
{
yield return(curNode.Value);
curNode = curNode.Previous;
}
}
}
public void CloseCurrentLine(int lineWidth, int lineHeight)
{
currentLine.SetPostArrangeLineSize(lineWidth, lineHeight);
if (isMultiLine)
{
if (currentRelocatorLineId < sourceLines.Count - 1)
{
++currentRelocatorLineId;
currentLine = sourceLines[currentRelocatorLineId];
}
else
{
currentRelocatorLineId++;
EditableTextLine newLine = new EditableTextLine(flowLayer);
flowLayer.AppendLine(newLine);
currentLine = newLine;
}
}
else
{
currentRelocatorLineId++;
EditableTextLine newLine = new EditableTextLine(flowLayer);
flowLayer.AppendLine(newLine);
sourceLines = (List <EditableTextLine>)flowLayer.lineCollection;
currentLine = newLine;
isMultiLine = true;
}
isFirstRunOfLine = true;
}
public override bool HitTestCore(HitChain hitChain)
{
if ((layerFlags & IS_LAYER_HIDDEN) == 0)
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
int j = lines.Count;
int testYPos = hitChain.TestPoint.Y;
for (int i = 0; i < j; ++i)
{
EditableTextLine line = lines[i];
if (line.LineBottom < testYPos)
{
continue;
}
else if (line.HitTestCore(hitChain))
{
return(true);
}
else if (line.LineTop > testYPos)
{
return(false);
}
}
}
else
{
EditableTextLine onlyLine = (EditableTextLine)lineCollection;
return(onlyLine.HitTestCore(hitChain));
}
}
return(false);
}
public IEnumerable <EditableRun> dbugGetDrawingIter2()
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
int j = lines.Count;
for (int i = 0; i < j; ++i)
{
LinkedListNode <EditableRun> curNode = lines[i].First;
while (curNode != null)
{
yield return(curNode.Value);
curNode = curNode.Next;
}
}
}
else
{
EditableTextLine onlyLine = (EditableTextLine)lineCollection;
LinkedListNode <EditableRun> curNode = onlyLine.First;
while (curNode != null)
{
yield return(curNode.Value);
curNode = curNode.Next;
}
}
}
public override IEnumerable <RenderElement> GetRenderElementIter()
{
if (lineCollection != null)
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
int j = lines.Count;
for (int i = 0; i < j; ++i)
{
EditableTextLine ln = lines[i];
LinkedListNode <EditableRun> veNode = ln.First;
while (veNode != null)
{
yield return(veNode.Value);
veNode = veNode.Next;
}
}
}
else
{
EditableTextLine ln = (EditableTextLine)lineCollection;
LinkedListNode <EditableRun> veNode = ln.First;
while (veNode != null)
{
yield return(veNode.Value);
veNode = veNode.Next;
}
}
}
}
internal void Remove(int lineId)
{
#if DEBUG
if (lineId < 0)
{
throw new NotSupportedException();
}
#endif
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) == 0)
{
return;
}
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
if (lines.Count < 2)
{
return;
}
EditableTextLine tobeRemovedLine = lines[lineId];
tobeRemovedLine.editableFlowLayer = null;
int cy = tobeRemovedLine.Top;
lines.RemoveAt(lineId); int j = lines.Count;
for (int i = lineId; i < j; ++i)
{
EditableTextLine line = lines[i];
line.SetTop(cy); line.SetLineNumber(i); cy += line.ActualLineHeight;
}
if (lines.Count == 1)
{
lineCollection = lines[0];
FlowLayerHasMultiLines = false;
}
}
void AddLineBreakBefore(EditableRun beforeTextRun)
{
if (beforeTextRun == null)
{
this.EndWithLineBreak = true;
editableFlowLayer.InsertNewLine(currentLineNumber + 1);
}
else
{
List <EditableRun> tempTextRuns = new List <EditableRun>();
if (beforeTextRun != null)
{
foreach (EditableRun t in GetVisualElementForward(beforeTextRun))
{
tempTextRuns.Add(t);
}
}
this.EndWithLineBreak = true;
EditableTextLine newTextline = editableFlowLayer.InsertNewLine(currentLineNumber + 1);
this.LocalSuspendLineReArrange();
newTextline.LocalSuspendLineReArrange();
int j = tempTextRuns.Count;
for (int i = 0; i < j; ++i)
{
EditableRun t = tempTextRuns[i];
this.Remove(t);
newTextline.AddLast(t);
}
this.LocalResumeLineReArrange();
newTextline.LocalResumeLineReArrange();
}
}
internal void JoinWithNextLine()
{
if (!IsLastLine)
{
EditableTextLine lowerLine = editableFlowLayer.GetTextLine(currentLineNumber + 1);
this.LocalSuspendLineReArrange();
int cx = 0;
EditableRun lastTextRun = (EditableRun)this.LastRun;
if (lastTextRun != null)
{
cx = lastTextRun.Right;
}
foreach (EditableRun r in lowerLine)
{
this.AddLast(r);
EditableRun.DirectSetLocation(r, cx, 0);
cx += r.Width;
}
this.LocalResumeLineReArrange();
this.EndWithLineBreak = lowerLine.EndWithLineBreak;
editableFlowLayer.Remove(lowerLine.currentLineNumber);
}
}
void debug_RecordLineInfo(RenderBoxBase owner, EditableTextLine line)
{
RootGraphic visualroot = this.dbugVRoot;
if (visualroot.dbug_RecordDrawingChain)
{
}
}
public EditableTextFlowLayer(TextEditRenderBox owner)
: base(owner)
{
this.owner = owner;
//start with single line per layer
//and can change to multiline
lineCollection = new EditableTextLine(this);
}
public void SplitIntoNewLine()
{
EditableRun currentRun = feeder.CurrentRun;
EditableTextLine line = currentRun.OwnerEditableLine;
line.SplitToNewLine(currentRun);
feeder.Read();
}
public void MoveToLine(int lineNumber)
{
currentLine = visualFlowLayer.GetTextLine(lineNumber);
currentLineY = currentLine.Top;
currentTextRun = (EditableRun)currentLine.FirstRun;
rCharOffset = 0;
rPixelOffset = 0;
charIndex = -1;
caretXPos = 0;
}
void Load(List <EditableTextLine> sourceLines)
{
if (sourceLines.Count > 0)
{
this.currentLine = sourceLines[0];
}
this.sourceLines = sourceLines;
isMultiLine = true;
isFirstRunOfLine = true;
}
void Load(List<EditableTextLine> sourceLines)
{
if (sourceLines.Count > 0)
{
this.currentLine = sourceLines[0];
}
this.sourceLines = sourceLines;
isMultiLine = true;
isFirstRunOfLine = true;
}
void Load(List <EditableTextLine> sourceLines)
{
if (sourceLines.Count > 0)
{
this.currentLine = sourceLines[0];
}
readState = 2;
this.sourceLines = sourceLines;
isMultiLine = true;
}
void AddLineBreakAfter(EditableRun afterTextRun)
{
if (afterTextRun == null)
{
this.EndWithLineBreak = true;
EditableTextLine newline = editableFlowLayer.InsertNewLine(currentLineNumber + 1);
//
if (editableFlowLayer.LineCount - 1 != newline.LineNumber)
{
newline.EndWithLineBreak = true;
}
return;
}
if (afterTextRun.NextTextRun == null)
{
this.EndWithLineBreak = true;
EditableTextLine newline = editableFlowLayer.InsertNewLine(currentLineNumber + 1);
//
if (editableFlowLayer.LineCount - 1 != newline.LineNumber)
{
newline.EndWithLineBreak = true;
}
}
else
{
List <EditableRun> tempTextRuns = new List <EditableRun>(this.Count);
if (afterTextRun != null)
{
foreach (EditableRun t in GetVisualElementForward(afterTextRun.NextTextRun))
{
tempTextRuns.Add(t);
}
}
this.EndWithLineBreak = true;
this.LocalSuspendLineReArrange();
EditableTextLine newTextline = editableFlowLayer.InsertNewLine(currentLineNumber + 1);
//
int j = tempTextRuns.Count;
newTextline.LocalSuspendLineReArrange(); int cx = 0;
for (int i = 0; i < j; ++i)
{
EditableRun t = tempTextRuns[i];
this.Remove(t);
newTextline.AddLast(t);
t.SetLocation(cx, 0);
cx += t.Width;
}
newTextline.LocalResumeLineReArrange(); this.LocalResumeLineReArrange();
}
}
public void UpdateSelectionRange()
{
if (startPoint.TextRun != null && !startPoint.TextRun.HasParent)
{
EditableTextLine startLine = startPoint.EditableLine;
startPoint = startLine.GetTextPointInfoFromCharIndex(startPoint.LineCharIndex);
}
if (endPoint.TextRun != null && !endPoint.TextRun.HasParent)
{
EditableTextLine stopLine = endPoint.EditableLine;
endPoint = stopLine.GetTextPointInfoFromCharIndex(endPoint.LineCharIndex);
}
}
public void AddBefore(EditableRun beforeVisualElement, EditableRun visualElement)
{
EditableTextLine targetLine = beforeVisualElement.OwnerEditableLine;
if (targetLine != null)
{
targetLine.AddBefore(beforeVisualElement, visualElement);
}
else
{
throw new NotSupportedException();
}
}
public void AddAfter(EditableRun afterVisualElement, EditableRun visualElement)
{
EditableTextLine targetLine = afterVisualElement.OwnerEditableLine;
if (targetLine != null)
{
targetLine.AddAfter(afterVisualElement, visualElement);
}
else
{
throw new NotSupportedException();
}
}
public void Draw(DrawBoard destPage, Rectangle updateArea)
{
if (IsOnTheSameLine)
{
EditableTextLine line = _startLocation.line;
if (line.OwnerFlowLayer == null)
{
//this marker should be remove or not
return;
}
destPage.FillRectangle(BackgroundColor, _startLocation.x_offset, line.LineTop,
_stopLocation.x_offset - _startLocation.x_offset, line.ActualLineHeight);
}
else
{
//multiple line
EditableTextLine startLine = _startLocation.line;
EditableTextLine endLine = _stopLocation.line;
if (startLine.OwnerFlowLayer == null || endLine.OwnerFlowLayer == null)
{
//this marker should be remove or not
return;
}
int lineYPos = startLine.LineTop;
destPage.FillRectangle(BackgroundColor, _startLocation.x_offset, lineYPos,
startLine.ActualLineWidth - _startLocation.x_offset,
startLine.ActualLineHeight);
int topLineId = startLine.LineNumber;
int bottomLineId = endLine.LineNumber;
if (bottomLineId - topLineId > 1)
{
EditableTextLine adjacentStartLine = startLine.Next;
while (adjacentStartLine != endLine)
{
destPage.FillRectangle(BackgroundColor, 0,
adjacentStartLine.LineTop,
adjacentStartLine.LineWidth,
adjacentStartLine.ActualLineHeight);
adjacentStartLine = adjacentStartLine.Next;
}
}
destPage.FillRectangle(BackgroundColor, 0, endLine.LineTop,
_stopLocation.x_offset,
endLine.ActualLineHeight);
}
}
public TextLineReader(EditableTextFlowLayer flowlayer)
{
#if DEBUG
this.dbug_MyId = dbugTotalId;
dbugTotalId++;
#endif
this.visualFlowLayer = flowlayer;
flowlayer.Reflow += new EventHandler(flowlayer_Reflow);
currentLine = flowlayer.GetTextLine(0);
if (currentLine.FirstRun != null)
{
currentTextRun = currentLine.FirstRun;
}
}
public void MoveToLine(int lineNumber)
{
currentLine = visualFlowLayer.GetTextLine(lineNumber);
currentLineY = currentLine.Top;
//if current line is a blank line
//not first run => currentTextRun= null
currentTextRun = (EditableRun)currentLine.FirstRun;
rCharOffset = 0;
rPixelOffset = 0;
caret_char_index = 0;
caretXPos = 0;
}
public void SetCaretPos(int x, int y)
{
int j = textLineWriter.LineCount;
if (j > 0)
{
EditableTextLine line = textLineWriter.GetTextLineAtPos(y);
int calculatedLineId = 0;
if (line != null)
{
calculatedLineId = line.LineNumber;
}
this.CurrentLineNumber = calculatedLineId;
this.textLineWriter.CaretXPos = x;
}
}
internal IEnumerable <EditableRun> TextRunForward(EditableRun startRun, EditableRun stopRun)
{
EditableTextLine currentLine = startRun.OwnerEditableLine;
EditableTextLine stopLine = stopRun.OwnerEditableLine;
if (currentLine == stopLine)
{
foreach (EditableRun r in currentLine.GetVisualElementForward(startRun, stopRun))
{
yield return(r);
}
}
else
{
foreach (EditableRun r in currentLine.GetVisualElementForward(startRun))
{
yield return(r);
}
currentLine = currentLine.Next;
while (currentLine != null)
{
if (currentLine == stopLine)
{
foreach (EditableRun r in currentLine)
{
if (r == stopRun)
{
break;
}
else
{
yield return(r);
}
}
break;
}
else
{
foreach (EditableRun r in currentLine)
{
yield return(r);
}
currentLine = currentLine.Next;
}
}
}
}
public EditableRun UnsafeRemoveCurrent()
{
LinkedListNode <EditableRun> tobeRemoveNode = curNode;
EditableRun v = tobeRemoveNode.Value;
EditableTextLine line = v.OwnerEditableLine;
if (tobeRemoveNode == line.First)
{
curNode = null;
readState = 2;
}
else
{
curNode = tobeRemoveNode.Previous;
}
line.UnsafeRemoveVisualElement(v);
return(v);
}
public void BindToTextLayer(EditableTextFlowLayer textLayer)
{
this.textLayer = textLayer;
//check is on the sameline,
//or multiple lines
//
if (IsOnTheSameLine)
{
EditableTextLine line = textLayer.GetTextLine(selectionRangeSnapshot.startLineNum);
//at this line
//find start and end point
int startColNum = selectionRangeSnapshot.startColumnNum;
int endColNum = selectionRangeSnapshot.endColumnNum;
int lineHeight = line.ActualLineHeight;
_startLocation = new MarkerLocation()
{
lineNum = line.LineNumber, x_offset = line.GetXOffsetAtCharIndex(startColNum), line = line
};
_stopLocation = new MarkerLocation()
{
lineNum = line.LineNumber, x_offset = line.GetXOffsetAtCharIndex(endColNum), line = line
};
}
else
{
EditableTextLine startLine = textLayer.GetTextLine(selectionRangeSnapshot.startLineNum);
_startLocation = new MarkerLocation()
{
lineNum = startLine.LineNumber,
x_offset = startLine.GetXOffsetAtCharIndex(selectionRangeSnapshot.startColumnNum),
line = startLine
};
//
EditableTextLine endLine = textLayer.GetTextLine(selectionRangeSnapshot.endLineNum);
_stopLocation = new MarkerLocation()
{
lineNum = endLine.LineNumber,
x_offset = endLine.GetXOffsetAtCharIndex(selectionRangeSnapshot.endColumnNum),
line = endLine
};
//
}
}
public override void Clear()
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
for (int i = lines.Count - 1; i > -1; --i)
{
lines[i].editableFlowLayer = null;
lines[i].Clear();
}
lines.Clear();
lineCollection = new EditableTextLine(this);
FlowLayerHasMultiLines = false;
}
else
{
((EditableTextLine)lineCollection).Clear();
}
}
public void Draw(Canvas destPage, Rectangle updateArea)
{
if (IsOnTheSameLine)
{
VisualPointInfo topEndPoint = TopEnd;
VisualPointInfo bottomEndPoint = BottomEnd;
int linetop = topEndPoint.LineTop;
destPage.FillRectangle(Color.LightGray, topEndPoint.X, linetop,
bottomEndPoint.X - topEndPoint.X, topEndPoint.ActualLineHeight);
}
else
{
EditableVisualPointInfo topEndPoint = TopEnd;
int lineYPos = topEndPoint.LineTop;
destPage.FillRectangle(Color.LightGray, topEndPoint.X, lineYPos,
topEndPoint.CurrentWidth - topEndPoint.X,
topEndPoint.ActualLineHeight);
int topLineId = topEndPoint.LineId;
int bottomLineId = BottomEnd.LineId;
if (bottomLineId - topLineId > 1)
{
EditableTextLine adjacentStartLine = topEndPoint.EditableLine.Next;
while (adjacentStartLine != BottomEnd.Line)
{
destPage.FillRectangle(Color.LightGray, 0,
adjacentStartLine.LineTop,
adjacentStartLine.CurrentWidth,
adjacentStartLine.ActualLineHeight);
adjacentStartLine = adjacentStartLine.Next;
}
EditableTextLine adjacentStopLine = BottomEnd.Line.Prev;
}
VisualPointInfo bottomEndPoint = BottomEnd;
lineYPos = bottomEndPoint.LineTop;
destPage.FillRectangle(Color.LightGray, 0, lineYPos, bottomEndPoint.X,
bottomEndPoint.ActualLineHeight);
}
}
public override void TopDownReCalculateContentSize()
{
#if DEBUG
vinv_dbug_EnterLayerReCalculateContent(this);
#endif
if (this.LineCount > 1)
{
List <EditableTextLine> lines = (List <EditableTextLine>) this.lineCollection;
EditableTextLine lastline = lines[lines.Count - 1];
SetPostCalculateLayerContentSize(lastline.ActualLineWidth, lastline.ActualLineHeight + lastline.LineTop);
}
else
{
SetPostCalculateLayerContentSize(ReCalculateContentSizeHorizontalFlow(this));
}
#if DEBUG
vinv_dbug_ExitLayerReCalculateContent();
#endif
}
public void Accept()
{
EditableRun v = null;
int sourceLineId = feeder.CurrentLineId;
if (this.currentRelocatorLineId == sourceLineId)
{
}
else if (sourceLineId > this.currentRelocatorLineId)
{
v = feeder.UnsafeRemoveCurrent();
currentLine.UnsafeAddLast(v);
if (feeder.IsUnStableBlankLine)
{
feeder.RemoveCurrentBlankLine();
}
}
else
{
v = feeder.CurrentRun;
EditableTextLine sourceLine = v.OwnerEditableLine;
sourceLine.SplitToNewLine(v);
feeder.Read(); currentRelocatorLineId = sourceLineId + 1;
currentLine = sourceLines[currentRelocatorLineId];
}
isFirstRunOfLine = false;
}
void AppendLine(EditableTextLine line)
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List<EditableTextLine> lines = (List<EditableTextLine>)lineCollection;
int lineCount = lines.Count;
EditableTextLine lastLine = lines[lineCount - 1];
line.SetLineNumber(lineCount);
line.SetTop(lastLine.Top + lastLine.ActualLineHeight);
lines.Add(line);
}
else
{
EditableTextLine onlyLine = (EditableTextLine)lineCollection;
List<EditableTextLine> newLineList = new List<EditableTextLine>();
newLineList.Add(onlyLine);
line.SetTop(onlyLine.ActualLineHeight);
line.SetLineNumber(1);
newLineList.Add(line);
lineCollection = newLineList;
FlowLayerHasMultiLines = true;
}
}
public bool Read()
{
switch (readState)
{
case 2:
if (this.currentLine != null)
{
curNode = currentLine.First; if (curNode != null)
{
readState = 0; return true;
}
else if (currentLine.EndWithLineBreak)
{
readState = 1; return true;
}
}
readState = 3; return false;
case 0:
{
curNode = curNode.Next;
if (curNode != null)
{
return true;
}
else
{
if (currentLine.EndWithLineBreak)
{
readState = 1;
return true;
}
else
{
if (!isMultiLine)
{
if (flowLayer.lineCollection is List<EditableTextLine>)
{
sourceLines = (List<EditableTextLine>)flowLayer.lineCollection;
isMultiLine = true;
}
}
if (isMultiLine)
{
readState = 3;
while (currentFeederLineId < sourceLines.Count - 1)
{
++currentFeederLineId; currentLine = sourceLines[currentFeederLineId];
curNode = currentLine.First;
if (curNode != null)
{
readState = 0;
return true;
}
else if (currentLine.EndWithLineBreak)
{
readState = 1;
return true;
}
}
return false;
}
}
}
}
break;
case 1:
{
if (isMultiLine)
{
readState = 3;
while (currentFeederLineId < sourceLines.Count - 1)
{
++currentFeederLineId; currentLine = sourceLines[currentFeederLineId];
curNode = currentLine.First;
if (curNode != null)
{
readState = 0;
return true;
}
else if (currentLine.EndWithLineBreak)
{
readState = 1;
return true;
}
}
return false;
}
}
break;
case 3:
{
return false;
}
}
return false;
}
void Load(EditableTextLine sourceLine)
{
this.currentLine = sourceLine;
isFirstRunOfLine = true;
}
public void RemoveCurrentBlankLine()
{
if (isMultiLine)
{
sourceLines.RemoveAt(currentFeederLineId);
if (currentFeederLineId > 0)
{
currentFeederLineId--;
currentLine = sourceLines[currentFeederLineId];
curNode = currentLine.Last;
if (curNode == null)
{
if (currentLine.EndWithLineBreak)
{
readState = 1;
}
else
{
readState = 3;
}
}
else
{
readState = 0;
}
}
else if (currentFeederLineId == 0)
{
if (sourceLines.Count > 0)
{
currentLine = sourceLines[currentFeederLineId];
#if DEBUG
string ss = currentLine.ToString();
#endif
curNode = currentLine.First; ;
readState = 2;
}
}
}
}
void Load(List<EditableTextLine> sourceLines)
{
if (sourceLines.Count > 0)
{
this.currentLine = sourceLines[0];
}
readState = 2;
this.sourceLines = sourceLines;
isMultiLine = true;
}
void debug_RecordLineInfo(RenderBoxBase owner, EditableTextLine line)
{
RootGraphic visualroot = this.dbugVRoot;
if (visualroot.dbug_RecordDrawingChain)
{
}
}
public void CloseCurrentLine(int lineWidth, int lineHeight)
{
currentLine.SetPostArrangeLineSize(lineWidth, lineHeight);
if (isMultiLine)
{
if (currentRelocatorLineId < sourceLines.Count - 1)
{
++currentRelocatorLineId;
currentLine = sourceLines[currentRelocatorLineId];
}
else
{
currentRelocatorLineId++;
EditableTextLine newLine = new EditableTextLine(flowLayer);
flowLayer.AppendLine(newLine);
currentLine = newLine;
}
}
else
{
currentRelocatorLineId++;
EditableTextLine newLine = new EditableTextLine(flowLayer);
flowLayer.AppendLine(newLine);
sourceLines = (List<EditableTextLine>)flowLayer.lineCollection;
currentLine = newLine;
isMultiLine = true;
}
isFirstRunOfLine = true;
}
public TextLineReader(EditableTextFlowLayer flowlayer)
{
#if DEBUG
this.dbug_MyId = dbugTotalId;
dbugTotalId++;
#endif
this.visualFlowLayer = flowlayer;
flowlayer.Reflow += new EventHandler(flowlayer_Reflow);
currentLine = flowlayer.GetTextLine(0);
if (currentLine.FirstRun != null)
{
currentTextRun = currentLine.FirstRun;
}
}
public void MoveToLine(int lineNumber)
{
currentLine = visualFlowLayer.GetTextLine(lineNumber);
currentLineY = currentLine.Top;
currentTextRun = (EditableRun)currentLine.FirstRun;
rCharOffset = 0;
rPixelOffset = 0;
charIndex = -1;
caretXPos = 0;
}
public static void InnerDoJoinWithNextLine(EditableTextLine line)
{
line.JoinWithNextLine();
}
void InsertLine(int insertAt, EditableTextLine textLine)
{
if (insertAt < 0)
{
throw new NotSupportedException();
}
List<EditableTextLine> lines = lineCollection as List<EditableTextLine>;
if (lines != null)
{
int j = lines.Count;
if (insertAt > j - 1)
{
AppendLine(textLine);
}
else
{
EditableTextLine line = lines[insertAt];
int cy = line.Top;
textLine.SetTop(cy);
textLine.SetLineNumber(insertAt);
cy += line.ActualLineHeight;
for (int i = insertAt; i < j; i++)
{
line = lines[i];
line.SetTop(cy);
line.SetLineNumber(i + 1);
cy += line.ActualLineHeight;
}
textLine.editableFlowLayer = this;
lines.Insert(insertAt, textLine);
}
}
else
{
lines = new List<EditableTextLine>();
lines.Add((EditableTextLine)lineCollection);
lineCollection = lines;
FlowLayerHasMultiLines = true;
int j = lines.Count;
if (insertAt > j - 1)
{
AppendLine(textLine);
}
else
{
EditableTextLine line = lines[insertAt];
int cy = line.Top;
textLine.SetTop(cy);
textLine.SetLineNumber(insertAt);
cy += line.ActualLineHeight;
for (int i = insertAt; i < j; i++)
{
line = lines[i];
line.SetTop(cy);
line.SetLineNumber(i + 1);
cy += line.ActualLineHeight;
}
textLine.editableFlowLayer = this;
lines.Insert(insertAt, textLine);
}
}
}
void Load(EditableTextLine sourceLine)
{
this.currentLine = sourceLine;
readState = 2;
}
internal EditableTextLine InsertNewLine(int insertAt)
{
EditableTextLine newLine = new EditableTextLine(this);
this.InsertLine(insertAt, newLine);
return newLine;
}
internal void SetInternalLinkedNode(LinkedListNode<EditableRun> linkedNode, EditableTextLine ownerTextLine)
{
this.ownerTextLine = ownerTextLine;
this._editableRunInternalLinkedNode = linkedNode;
EditableRun.SetParentLink(this, ownerTextLine);
}
void PerformHorizontalFlowArrangeForMultilineText(
int ownerClientLeft, int ownerClientWidth,
int ownerClientTop)
{
#if DEBUG
long startTick = DateTime.Now.Ticks;
#endif
List<EditableTextLine> lines = (List<EditableTextLine>)this.lineCollection;
int ownerClientRight = ownerClientLeft + ownerClientWidth;
int curX = 0;
int curY = 0;
bool lastestIsBlock = false;
int maxWidth = 0;
int curY_fromTop = ownerClientTop;
int maxHeightInRow = EditableTextLine.DEFAULT_LINE_HEIGHT;
int lineCount = lines.Count;
for (int i = 0; i < lineCount; ++i)
{
EditableTextLine line = lines[i];
curX = ownerClientLeft;
lastestIsBlock = false;
line.SetTop(curY_fromTop);
if (!line.NeedArrange)
{
maxHeightInRow = line.ActualLineHeight;
if (line.ActualLineWidth > maxWidth)
{
maxWidth = line.ActualLineWidth;
}
}
else
{
maxHeightInRow = EditableTextLine.DEFAULT_LINE_HEIGHT;
EditableTextLine newLine = null;
line.ValidateContentArrangement();
bool isFirstRunInThisLine = true;
foreach (EditableRun currentRun in line)
{
#if DEBUG
vinv_dbug_BeginSetElementBound(currentRun);
#endif
int v_desired_width = currentRun.Width;
int v_desired_height = currentRun.Height;
if (isFirstRunInThisLine)
{
lastestIsBlock = currentRun.IsBlockElement;
if (v_desired_height > maxHeightInRow)
{
maxHeightInRow = v_desired_height;
}
EditableRun.DirectSetLocation(currentRun, curX, 0);
if (v_desired_height > maxHeightInRow)
{
maxHeightInRow = v_desired_height;
}
if (lastestIsBlock)
{
v_desired_width = ownerClientWidth;
}
EditableRun.DirectSetSize(currentRun,
v_desired_width, v_desired_height);
currentRun.MarkValidContentArrangement();
curX += v_desired_width;
isFirstRunInThisLine = false;
}
else
{
if (lastestIsBlock || currentRun.IsBlockElement ||
(curX + v_desired_width > ownerClientRight))
{
newLine = new EditableTextLine(this);
newLine.AddLast(currentRun);
curY = curY_fromTop + maxHeightInRow;
curY_fromTop = curY;
maxHeightInRow = EditableTextLine.DEFAULT_LINE_HEIGHT;
EditableRun nextR = currentRun.NextTextRun;
while (nextR != null)
{
line.UnsafeRemoveVisualElement(nextR);
newLine.AddLast(nextR);
nextR = nextR.NextTextRun;
}
if (i + 1 == lineCount)
{
lines.Add(newLine);
}
else
{
lines.Insert(i + 1, newLine);
}
lineCount++;
break;
}
else
{
lastestIsBlock = currentRun.IsBlockElement;
if (v_desired_height > maxHeightInRow)
{
maxHeightInRow = v_desired_height;
}
EditableRun.DirectSetLocation(currentRun, curX, 0);
EditableRun.DirectSetSize(currentRun,
v_desired_width, v_desired_height);
currentRun.MarkValidContentArrangement();
curX += v_desired_width;
}
}
#if DEBUG
vinv_dbug_EndSetElementBound(currentRun);
#endif
}
if (curX > maxWidth)
{
maxWidth = curX;
}
}
line.SetPostArrangeLineSize(maxWidth, maxHeightInRow);
curY = curY_fromTop + maxHeightInRow;
curY_fromTop = curY;
}
ValidateArrangement();
}
public override void Clear()
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List<EditableTextLine> lines = (List<EditableTextLine>)lineCollection;
for (int i = lines.Count - 1; i > -1; --i)
{
lines[i].editableFlowLayer = null;
lines[i].Clear();
}
lines.Clear();
lineCollection = new EditableTextLine(this);
FlowLayerHasMultiLines = false;
}
else
{
((EditableTextLine)lineCollection).Clear();
}
}