[Solved]Why a dot char changes to a box in a arabic string?

[dhuta]

I find i have the same question as http://www.qtcentre.org/threads/59640-dot-gets-converted-into-square-with-arabic-language-on-Android-5-plateform shows.

I know that, the arabic font file i used in my program defines the '.notdef' char that represent the so-called 'box' which painted on the screen.

Can anyone help me figure it out?

[A Former User]

What Qt version are you using? This bug was fixed in Qt 5.2.1. See here: https://bugreports.qt.io/browse/QTBUG-34191

[dhuta]

It's Qt5.3.1 on linux. I know the box showed is not generated by QFontEngineBox, but a definition in the font file, and under the font path, there are many font files that some one includes the 'dot' char for sure.

[dhuta]

@Wieland here is the text:
"إحداثيات قريبة إلى أصل الصورة الرمزية (0،0)، وذلك باستخدام صعودا اتفاقية ذ. هذه الدالة تأخذ حجة خاصة، ووضع BBOX، للإشارة إلى كيفية التعبير عن الإحداثيات مربع."

On my pc, it works well. But on my embed device, the 'dot' at the tail changes to square. Is it the problem of my embed device?

[dhuta]

@Wieland I find the official resolution https://codereview.qt-project.org/#/c/92375/ . But it also faild on my embed device :(

[dhuta]

In qtbase/src/gui/text/qtextengine.cpp, line 127.
qt5.4 changes && m_analysis[i].script == m_analysis[start].script to && (m_analysis[i].script == m_analysis[start].script || m_string[i] == QLatin1Char('.')). Rollback can resolve it.

[SGaist]

Hi,

Do you mean it still broken ?

[dhuta]

@SGaist No. it works now. ScriptItem will not split by dot.