Which text control should I use to load large files?

[purplex88]

Yes, I need std::string to able to use it with std::stringstream and std::getline in order to do some parsing.

I am reading from docs that I can use:

Code: Select all

wxUSE_UNICODE_UTF8=1

if I want UTF-8 wxString in transparent way everywhere. Do I use this in preprocessor under Visual Studio 2015 -> Properties -> C/C++ -> Preprocessor Definitions ? I tried but it didn't work as expected.

[PB]

Firstly, you would need to build wxWidgets for defalt UTF-8 encoding.

Secondly, I do not think it is recommended or even supported on MSW.

See this section for more information, preferrably read the whole page there.

[purplex88]

I see. After some looking up I found that I can use std::wstring. This should work without any encoding problems.

Things are becoming clear now. So, that means the wxWidget controls e.g. wxTextCtrl and wxListCtrl in particular are using UTF-16 to handle and display data?

[doublemax]

So, that means the wxWidget controls e.g. wxTextCtrl and wxListCtrl in particular are using UTF-16 to handle and display data?

Not exactly.

wxString under Windows uses UTF-16 to store string data internally. As do the native controls under Windows (in Unicode).

But in most cases you don't have to care about this and consider wxString a black box. Only when you need a specific encoding, you can use ToUTF8 or the more generic mb_str(...) to get it.

[purplex88]

Makes sense. If I want wxTextCtrl and wxListCtrl to interpret data as UTF-8 for display, do I need to re-compile wxWidgets?

[doublemax]

If I want wxTextCtrl and wxListCtrl to interpret data as UTF-8 for display, do I need to re-compile wxWidgets?

Theoretically you can make wxWidgets use UTF8 as internal storage for strings. But as PB already mentioned, i don't think this is fully supported under Windows. It will probably cause more problems than it solves. My recommendation: Don't do it.