public void AddCharToCurrentLine(char c)
{
updateJustCurrentLine = true;
bool passRemoveSelectedText = false;
#if DEBUG
if (dbugEnableTextManRecorder)
{
_dbugActivityRecorder.WriteInfo("TxLMan::AddCharToCurrentLine " + c);
_dbugActivityRecorder.BeginContext();
}
#endif
if (SelectionRange != null)
{
#if DEBUG
if (dbugEnableTextManRecorder)
{
_dbugActivityRecorder.WriteInfo(SelectionRange);
}
#endif
RemoveSelectedText();
passRemoveSelectedText = true;
}
if (passRemoveSelectedText && c == ' ')
{
}
else
{
commandHistory.AddDocAction(
new DocActionCharTyping(c, textLineWriter.LineNumber, textLineWriter.ProperCharIndex));
}
textLineWriter.AddCharacter(c);
#if DEBUG
if (dbugEnableTextManRecorder)
{
_dbugActivityRecorder.EndContext();
}
#endif
}
public void SetCurrentCharIndex(int newCharIndexPointTo)
{
#if DEBUG
if (dbugTextManRecorder != null)
{
dbugTextManRecorder.WriteInfo("TextLineReader::CharIndex_set=" + newCharIndexPointTo);
dbugTextManRecorder.BeginContext();
}
#endif
if (newCharIndexPointTo < 0 || newCharIndexPointTo > currentLine.CharCount)
{
throw new NotSupportedException("index out of range");
}
if (newCharIndexPointTo == 0)
{
caret_char_index = 0;
caretXPos = 0;
rCharOffset = 0;
rPixelOffset = 0;
currentTextRun = currentLine.FirstRun;
}
else
{
int diff = newCharIndexPointTo - caret_char_index;
switch (diff)
{
case 0:
{
return;
}
default:
{
if (diff > 0)
{
do
{
if (rCharOffset + currentTextRun.CharacterCount > newCharIndexPointTo)
{
caret_char_index = newCharIndexPointTo;
caretXPos = rPixelOffset + currentTextRun.GetRunWidth(caret_char_index - rCharOffset);
#if DEBUG
if (dbugTextManRecorder != null)
{
dbugTextManRecorder.EndContext();
}
#endif
return;
}
} while (MoveToNextTextRun());
caret_char_index = rCharOffset + currentTextRun.CharacterCount;
caretXPos = rPixelOffset + currentTextRun.Width;
return;
}
else
{
do
{
if (rCharOffset - 1 < newCharIndexPointTo)
{
caret_char_index = newCharIndexPointTo;
caretXPos = rPixelOffset + currentTextRun.GetRunWidth(caret_char_index - rCharOffset);
#if DEBUG
if (dbugTextManRecorder != null)
{
dbugTextManRecorder.EndContext();
}
#endif
return;
}
} while (MoveToPreviousTextRun());
caret_char_index = 0;
caretXPos = 0;
}
}
break;
}
}
#if DEBUG
if (dbugTextManRecorder != null)
{
dbugTextManRecorder.EndContext();
}
#endif
}