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Help => Graphics => Topic started by: dkaip on February 13, 2010, 09:07:23 am

Title: How i can see Greek text?
Post by: dkaip on February 13, 2010, 09:07:23 am

Hello. In code i have Greek language, arial have Greeks, but i can not see the real text.
How i can do that?
Thank's
Jim

Code: [Select]

   if (!MyFont.LoadFromFile("arial.ttf", 50))
        return EXIT_FAILURE;
// Create a graphical string
    sf::String Hello;
    Hello.SetText("Hello !\n γεια χαρά?");
    Hello.SetFont(MyFont);
    Hello.SetColor(sf::Color(0, 128, 128));
    Hello.SetPosition(100.f, 100.f);
    Hello.SetRotation(15.f);
    Hello.SetSize(50.f);


Title: How i can see Greek text?
Post by: Lokk on February 13, 2010, 10:46:23 am

Code: [Select]

Hello.SetText(L"Hello !\n γεια χαρά?"); ?

Title: How i can see Greek text?
Post by: dkaip on February 15, 2010, 12:20:15 pm

Sorry, it dont works.

compiller says
.... converting to execution character set: Illegal byte sequence|
||=== Build finished: 1 errors, 0 warnings ===|

CodeBlocks, win XP, MinGW.

Title: How i can see Greek text?
Post by: Laurent on February 15, 2010, 02:03:45 pm

You should never write string literals other than ASCII into your code, the different encodings involved are very hard to control and always create a lot of troubles.

Title: How i can see Greek text?
Post by: dkaip on February 15, 2010, 07:34:14 pm

Ok only ASCII chars in code. But if someone want's to have unicode text into the code how can it does that?
One method is to open a unicode file, convert strings in wstrings and final works with it.
But if want to have embending wstrings, without open an external file, what it does?  :?

Title: How i can see Greek text?
Post by: Laurent on February 15, 2010, 07:58:21 pm

You can have wide strings literals

Code: [Select]

std::wstring str = L"blah";
But it still depends on the encoding used by your code editor, and how your platform implements wchar_t.

The safest way is to use the unicode escape sequence to type codepoints directly (never remember the syntax, sorry -- something like "\u0015") but it's not very convenient.

Title: How i can see Greek text?
Post by: dkaip on February 15, 2010, 09:32:10 pm

Thank's for reply. I am trying some methods, like resources, in utf enconding.
Jim

Title: How i can see Greek text?
Post by: dkaip on February 16, 2010, 02:56:45 pm

I am trying this code. All characters are ok from \x21 until \xfe. But from \xff and more nothing. For example the \x3c2 character is as the \xc2.
I use SFML 1.5, how it can fix it?

Code: [Select]

////////////////////////////////////////////////////////////
#include <SFML/Graphics.hpp>
#include <iostream>
int main()
{
    sf::RenderWindow App(sf::VideoMode(800, 600, 32), "SFML Graphics");
    sf::Font MyFont;
    if (!MyFont.LoadFromFile("arial.ttf", 50))
        return EXIT_FAILURE;
    sf::String Hello;
    std::string asd="123 Γεια χαρά, όλα καλά";
    std::wstring asd1=L"456 Γεια χαρά, όλα καλά";
    Hello.SetText("\xf1\xf2...\xfe\xff");
    Hello.SetFont(MyFont);
    Hello.SetColor(sf::Color(0, 128, 128));
    Hello.SetPosition(100.f, 100.f);
    //Hello.SetRotation(15.f);
    Hello.SetSize(50.f);
    sf::Event Event;
    while (App.IsOpened())
    {
        while (App.GetEvent(Event))
        {
            if (Event.Type == sf::Event::Closed)
                App.Close();
            if (Event.Type == sf::Event::KeyPressed)
            {
                if (Event.Key.Code == sf::Key::Escape)
                {
                    App.Close();
                }
                if (Event.Key.Code == sf::Key::F1)
                {
                    sf::Image Screen = App.Capture();
                    Screen.SaveToFile("screenshot.jpg");
                }
            }
        }
        App.Clear(sf::Color(200, 0, 0));
       App.Draw(Hello);
        App.Display();
    }
    return EXIT_SUCCESS;
}


Title: How i can see Greek text?
Post by: dkaip on February 18, 2010, 07:37:09 am

Maybe must implement my own chars in library, with SFML1.5, but in SFML 2.0 there is not sutch restriction. I have not try get.

src\SFML\Graphics\Font.cpp
----------------------------------

Code: [Select]

Uint32 Font::ourDefaultCharset[] =
{
    // Printable characters in ASCII range
    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
    0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
    0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
    0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E,

    // Printable characters in extended ASCII range
    0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0x2A, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
    0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
    0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
    0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
    0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
    0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE,

    // To make it a valid string
    0x00
};

Title: How i can see Greek text?
Post by: Laurent on February 18, 2010, 07:56:59 am

Yes, in SFML 1 there is a limited character set, and it must contain all the glyphs that you draw.

Title: How i can see Greek text?
Post by: dkaip on February 19, 2010, 12:10:38 pm

Compiling sfml2 take these libraries. The *.a put in C:\Program Files\CodeBlocks\MinGW\lib\ directory, and the *.dll to source project path, and in C:\Program Files\CodeBlocks\MinGW\include\ i put SFML directory.

Quote

libsfml-audio-d.a,libsfml-audio-s-d.a,libsfml-audio-s.a,libsfml-audio.a,libsfml-graphics-d.a,libsfml-graphics-s-d.a,libsfml-g,aphics-s.a,libsfml-graphics.a,libsfml-main-d.a,libsfml-network-d.a,libsfml-network-s-d.a,libsfml-network-s.a,libsfml-netwo,k.a,libsfml-system-d.a,libsfml-system-d.dll.a,libsfml-system-s-d.a,libsfml-system-s.a,libsfml-system.a,libsfml-window-d.a,l,bsfml-window-s-d.a,libsfml-window-s.a,libsfml-window.a
sfml-audio-d.dll,sfml-audio.dll,sfml-graphics-d.dll,sfml-graphics,dll,sfml-network-d.dll,sfml-network.dll,sfml-system-d.dll,sfml-system.dll,sfml-window-d.dll,sfml-window.dll

Linker options i have

Quote

-lsfml-graphics
-lsfml-window
-lsfml-system
-lsfml-audio

and defines SFML_DYNAMIC macro.

Runing the sample ...

Code: [Select]

#include <SFML/System.hpp>
#include <iostream>

int main()
{
    sf::Clock Clock;
    while (Clock.GetElapsedTime() < 5.f)
    {
        std::cout << Clock.GetElapsedTime() << std::endl;
        sf::Sleep(0.5f);
    }

    return 0;
}


all are ok...

But in the next paradigm

Code: [Select]

int main()
{
// Create the main rendering window
    sf::RenderWindow App(sf::VideoMode(800, 600, 32), "SFML Graphics");
// Load a font from a file
    sf::Font MyFont;
    if (!MyFont.LoadFromFile("arial.ttf", 50))
        return EXIT_FAILURE;
// Create a graphical string
    sf::String Hello;
    std::string asd="123 Γεια χαρά, όλα καλά";
    std::wstring asd1=L"456 Γεια χαρά, όλα καλά";
    Hello.SetText("\xf1\xf2...\xfe\xff  \x3c2");


compiller says in LoadFromFile....

Quote

C:\TMP\15\main.cpp||In function `int main()':|
C:\TMP\15\main.cpp|19|error: no matching function for call to `sf::Font::LoadFromFile(const char[10], int)'|
C:\Program Files\CodeBlocks\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\SFML\Graphics\Font.hpp|92|note: candidates are: bool sf::Font::LoadFromFile(const std::string&)|
C:\TMP\15\main.cpp|25|error: 'class sf::String' has no member named 'SetText'|
C:\TMP\15\main.cpp|25|warning: hex escape sequence out of range|
C:\TMP\15\main.cpp|26|error: 'class sf::String' has no member named 'SetFont'|
C:\TMP\15\main.cpp|27|error: 'class sf::String' has no member named 'SetColor'|
C:\TMP\15\main.cpp|28|error: 'class sf::String' has no member named 'SetPosition'|
C:\TMP\15\main.cpp|30|error: 'class sf::String' has no member named 'SetSize'|
C:\TMP\15\main.cpp|52|error: 'class sf::RenderWindow' has no member named 'Capture'|
C:\TMP\15\main.cpp|59|error: no matching function for call to `sf::RenderWindow::Draw(sf::String&)'|
C:\Program Files\CodeBlocks\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\SFML\Graphics\RenderTarget.hpp|70|note: candidates are: void sf::RenderTarget::Draw(const sf::Drawable&)|
C:\Program Files\CodeBlocks\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\SFML\Graphics\RenderTarget.hpp|79|note:                 void sf::RenderTarget::Draw(const sf::Drawable&, const sf::Shader&)|
||=== Build finished: 8 errors, 1 warnings ===|

Title: How i can see Greek text?
Post by: Laurent on February 19, 2010, 12:11:53 pm

A lot of things have changed in SFML 2 (and are not documented yet, except in my messages on the General forum).

sf::String is now sf::Text, and SetText is now SetString ;)

Title: How i can see Greek text?
Post by: dkaip on February 19, 2010, 12:13:45 pm

Thank's
Ok. we waiting next docoumentation.
Jim

Title: How i can see Greek text?
Post by: Laurent on February 19, 2010, 12:24:59 pm

Quote

Ok. we waiting next docoumentation.

It won't happen before a long time ;)

Title: How i can see Greek text?
Post by: dkaip on March 08, 2010, 06:53:28 pm

Trying to see character \x271F  of my font, i compile SFML1.5, i imlement default char set with extension bellow...

Code: [Select]


Uint32 Font::ourDefaultCharset[] =
{
    // Printable characters in ASCII range
    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, ....
..........................

// extension
0x2710, 0x2711,

..................

Using these libraries nothing happent. I can not see the 0x2710 character, only the x34, that is 4 i can see...

Code: [Select]


    sf::Font A;
    if (!A.LoadFromFile("i2.ttf"))
        return EXIT_FAILURE;
    sf::String Text("\x271F \x34 ", A, 50);// the 4 i can see it ...



Any suggestion?

Title: How i can see Greek text?
Post by: Laurent on March 08, 2010, 06:58:33 pm

0x271F doesn't fit in a char (your compiler should warn you). Try using wide characters instead:

Code: [Select]

sf::String Text(L"\x271F \x34 ", A, 50);

Title: How i can see Greek text?
Post by: dkaip on March 10, 2010, 08:57:59 am

Ok buck again.
I just compile SFML2 with codeblocks 8.02 on XP(With svn version 6088 library not compile), and the i run the program to see my chars ...

Code: [Select]

if (!font.LoadFromFile("i2.ttf"))
sf::Text Text("\x0035, \x2718, \x2719, \x271a, \x271b, \x271c, \x271d, \x271e, \x271f, \x2720, \x2721, \x2722, \x2723, \x2724, \x2725,",font);


In this code i can see only the 5 and ,,,,, but the characters i can not see.
The characters exist and i can see with fontforge and with other applications.

Any idea? Somthing wrong with code or SFML2?

Title: How i can see Greek text?
Post by: Laurent on March 10, 2010, 09:03:17 am

Have you read my last message? ...

Title: How i can see Greek text?
Post by: dkaip on March 10, 2010, 11:00:03 am

Laurent thank's very mutch ....
Excelent the way with wide chars. I just uderstud the way ...
I see at last my char's, and thank's. Your framework and your job is very-very good.
Good day.
Jim