void TextBox::CalcTextWidth()
{
// analyze the text length
FontPtr pFont = Renderer::GetInstance().GetFont(mTextSize);
unsigned width = mSize.x;
float textWidth;
mMultiLineText = pFont->InsertLineFeed((const char*)mTextw.c_str(), mTextw.size() * 2, width, &textWidth, &mNumTextLines);
mTextWidth = (unsigned)Round(textWidth);
pFont->SetBackToOrigHeight();
mUIObject->SetText(mMultiLineText.c_str());
}
