public void DoLeft()
{
int count = _charBuffer.Count;
if (count == 0)
{
_caretCharIndex = 0;
return;
}
else if (_caretCharIndex > 0)
{
//this is on the end
_caretCharIndex--;
//check if the caret can rest on this glyph?
if (_caretCharIndex > 0)
{
//find its mapping to glyph index
UserCodePointToGlyphIndex userCodePointToGlyphIndex = _userCodePointToGlyphIndexMap[_caretCharIndex];
int mapToGlyphIndex = userCodePointToGlyphIndex.glyphIndexListOffset_plus1;
//
if (mapToGlyphIndex == 0)
{
//no map
DoLeft(); //recursive ***
return;
}
//-------------------------
//we -1 ***
PxScaledGlyphPlan glyphPlan = _glyphPlans[userCodePointToGlyphIndex.glyphIndexListOffset_plus1 - 1];
if (!glyphPlan.AdvanceMoveForward)
{
//caret can't rest here
//so
DoLeft(); //recursive ***
return;
}
//---------------------
//
}
}
else
{
}
}
public void Append(PxScaledGlyphPlan glyphPlan)
{
_glyphPlans.Add(glyphPlan);
_accumAdvanceX += glyphPlan.AdvanceX;
}