problem gui and wchar_t*

full_newbie · Post by **full_newbie** » Mon May 31, 2010 7:45 pm

Hey everyone.
Im getting a problem.
This code:

locale::global(locale(""));
wifstream f("in.txt", std::wifstream::in);//in.txt - file encoding utf-8
wstring s1;
const wchar_t *load_string;
getline(f, s1);
load_string=s1.c_str();
load_string=(wchar_t*)load_string;
wofstream out("out.txt");
out<<load_string;//good work and encode utf-8
env->addEditBox(load_string, rect<s32>(350, 80, 550, 100));// bad work and encode ????

Why text is good in file , but in Gui element - bad encoding?
if writing this:

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load_string=L"text";
env->addEditBox(load_string, rect<s32>(350, 80, 550, 100));

This code is good work.
Please help me.
This result:

greenya · Post by **greenya** » Mon May 31, 2010 7:52 pm

Probably because built-in font doesn't support Cyrillic characters. You can check trying:

Code: Select all

load_string=L"Русский текст"; 
env->addEditBox(load_string, rect<s32>(350, 80, 550, 100));

You have to use own font with Cyrillic to display this.

full_newbie · Post by **full_newbie** » Mon May 31, 2010 8:05 pm

No, my programm good support Cyrillic characters, font - Cyrillic.
See, I am writing:

if writing this:
Code:
load_string=L"text";// and load_string=L"Русский текст" - good
env->addEditBox(load_string, rect<s32>(350, 80, 550, 100));
This code is good work.

But, if I am get chars in file and past in EditBox, result bad.

greenya · Post by **greenya** » Mon May 31, 2010 8:23 pm

I have just check it with Irrlicht 1.7.1, all works fine, here is working sample:

Code: Select all

#include "irrlicht.h"

#pragma comment(lib, "Irrlicht.lib")

using namespace irr;
using namespace core;

int main()
{
	IrrlichtDevice *irrDevice =
		createDevice(video::EDT_OPENGL, dimension2du(500, 400));

	video::IVideoDriver *irrDriver = irrDevice->getVideoDriver();
	gui::IGUIEnvironment *irrGUI = irrDevice->getGUIEnvironment();

	irrDevice->setWindowCaption(L"002. Кириллический текст");

	gui::IGUIFont* fnt = irrGUI->getFont("../media/myfont.xml");

	irrGUI->getSkin()->setFont(fnt);

	gui::IGUIStaticText *label =
		irrGUI->addStaticText(L"Это пример русского текста на метке",
		core::rect<int>(10, 10, 490, 60), true);
	label->setOverrideColor(video::SColor(255, 255, 0, 0));
	
	gui::IGUIButton *button =
		irrGUI->addButton(core::rect<int>(100, 200, 400, 225),
		0, -1, L"Название кнопки", L"Подсказка для кнопки");

	gui::IGUIEditBox *editBox =
		irrGUI->addEditBox(L"Русский едитбокс", recti(100, 150, 400, 180));

	while(irrDevice->run())
	{
		irrDriver->beginScene(true, true, video::SColor(255, 30, 60, 90));
		irrGUI->drawAll();
		irrDriver->endScene();
	}

	irrDevice->drop();
	return 0;
}

to run it you will need "myfont", i have uploaded it here -- http://filebeam.com/54e76256324bcec74740ac5386e577d3

screenshot:

full_newbie · Post by **full_newbie** » Mon May 31, 2010 8:34 pm

Yes, and me you code - good work. And my code - good work. But, I need load text out file. And array with loaded chars changed encode.
(greenya Мне не нужно в самом коде программы русский текст, он у меня и так работает, я все настроил, русский шрифт, всё нормально отображает, мне нужно подгружать русский текст из файла, но когда я его подгружаю и заношу в GUI, то отображается "белиберда", если этот подгруженый текст, обратно занести в файл, то тоже все нормально работает.)

greenya · Post by **greenya** » Mon May 31, 2010 9:33 pm

ok, i see.

here is a code how to read 1 text line from a file (../media/textFile.txt); important: file must be saved in UNICODE.

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...
	// READ TEXT FROM FILE -----------------
	wchar_t* fileText = L"FAILED TO LOAD FROM FILE";
	FILE *f;
	errno_t e = _wfopen_s(&f, L"../media/textFile.txt", L"rt,ccs=UNICODE");
	if (!e && f)
	{
		wchar_t t[1000];
		fgetws(t, 1000, f);
		fclose(f);
		fileText = t;
	}
	// -------------------------------------

	gui::IGUIEditBox *editBox =
		irrGUI->addEditBox(fileText, recti(100, 120, 400, 180));
...

but result a bit strange: text is higher (i increased height of the editbox) and when i selecting part of text -- it draws at the center, look:

full_newbie · Post by **full_newbie** » Tue Jun 01, 2010 2:18 am

errno_t e = _wfopen_s(&f, L"../media/textFile.txt", L"rt,ccs=UNICODE");
`errno_t' was not declared in this scope , what will include?

If I write this:

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wchar_t* fileText = L"FAILED TO LOAD FROM FILE";
   FILE *f;
   wchar_t t[1000];
   fgetws(t, 1000, f);
   fclose(f);
   fileText = t;

Run application, black screen and error.

full_newbie · Post by **full_newbie** » Tue Jun 01, 2010 2:30 am

This debuger message:
In ntdll!LdrEnumerateLoadedModules () (ntdll.dll)
In ntdll!LdrEnumerateLoadedModules () (ntdll.dll)
In ntdll!LdrEnumerateLoadedModules () (ntdll.dll)
Program received signal SIGSEGV, Segmentation fault.
In ntdll!EtwEventWriteTransfer () (ntdll.dll)
Program exited with code 030000000005.

greenya · Post by **greenya** » Tue Jun 01, 2010 5:59 am

In my VS2008, i include only stdio.h, and it works.

_wfopen_s() defined in stdio.h
errno_t defined in crtdefs.h (included by stdio.h), and it defined as:

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typedef int errno_t;

so you may use simply int.

full_newbie · Post by **full_newbie** » Tue Jun 01, 2010 1:10 pm

I am use Code::Blocks and only Code::Blocks.
If i include stdio.h - not work
crtdefs.h - no file
If include stdio.h and define errno_t (typedef int errno_t;) - `_wfopen_s' was not declared in this scope.
This code work only VS, bu i use Code::Blocks (Но чего нет, того нет.)

hybrid · Post by **hybrid** » Tue Jun 01, 2010 1:19 pm

The replacement would be wfopen

full_newbie · Post by **full_newbie** » Tue Jun 01, 2010 7:18 pm

Haha, i write:

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wchar_t* fileText = L"FAILED TO LOAD FROM FILE";
   FILE *f;
   f = _wfopen(L"test.dlg", L"rt,ccs=UNICODE");
   if (f)
   {
      wchar_t t[1000];
      fgetws(t, 1000, f);
      fclose(f);
      fileText = t;
   }

The result has not changed. Bad bad. Why? What wrong?

greenya · Post by **greenya** » Tue Jun 01, 2010 8:11 pm

If you see "FAILED TO LOAD FROM FILE" than it really failed to open the file. Make sure you place it near your EXE file since you writing "test.dlg".

If you don't even see FAILED... message, than probably you forgot to specify fileText variable when creating EditBox:
gui::IGUIEditBox *editBox = irrGUI->addEditBox(fileText, recti(100, 120, 400, 180));

full_newbie · Post by **full_newbie** » Wed Jun 02, 2010 8:52 am

I am not stupid. I see text in other encode, no utf-8.
File: utf-8
If i use QT library and this code - all fine work.
If i use this code in console - all fine work.
If i use OGRE and this code - all fine work
If i use Irrlicht and this code - all incorect work.
I see:

greenya · Post by **greenya** » Wed Jun 02, 2010 10:49 am

As i said above, encoding of your text file must be UNICODE (if you use my code sample for reading text from it).

P.S.: UNICODE != UTF-8.