Hi,
I started with CSFML a couple of weeks ago.
I am *not* using SFML but only the C binding, so questions and reports here may or may not also apply to SFML itself.
I just don't know, :-).
When I came to unicode strings I first had to manage some hurdles as my programs(s) should run in a Windows an a Linux enviroment, and handling the locales and wide characters is not alway funny then.
Especially, I miss the UTF_X_toUTF_Y conversion functions in the C binding.
You may consider to add them in a future release ...
But of course, this can also manually be done.
But when I wanted to set a unicode string to an sfText ('sfText_setUnicodeString()') I had to realize that CSFML doesn't accept unicode characters on higher planes beyond U+FFFF.
So I decided to get the character by the font itself (see example below) - same result.
Good for testing is the unicode font 'unifont' from
https://www.unifoundry.com/unifont/index.html that virtually contains an image for (nearly) every single code point.
My 'test character' is U+1D11E ('Musical Symbol G Clef') but you'll find that no unicode character at all will work in (C)SFML beyond 'U+FFFF'.
Is this a bug or by design? But if it's by design - why use 4 byte long sfUint32 integers to handle them ...?
#include <stdio.h>#include <stdlib.h>#include <string.h>#include <SFML/Graphics.h>sfRenderWindow
* window
;void selectGlyph
(void *data
){ sfUint32
*codePoint
= data
; char buffer
[8]; while(sfRenderWindow_isOpen
(window
)) { printf("Enter hexadecimal code point: "); do { fgets(buffer
, 8, stdin
); } while (strcspn(buffer
, "\n") == 7); *codePoint
= strtoul(buffer
, NULL
, 16); }}int main
(void) { sfVideoMode mode
= {160, 160, 32}; sfTexture
* texture
; sfSprite
* sprite
; sfEvent event
; sfColor bColor
; sfUint32 codePoint
= 0x0000; sfUint32 oldCodePt
= 0xFFFF; sfThread
*thread
= sfThread_create
(selectGlyph
, &codePoint
); /* Create the main window */ window
= sfRenderWindow_create
(mode
, "CSFML Unicode Test", (sfDefaultStyle
), NULL
); if (!window
) return EXIT_FAILURE
; sfRenderWindow_setVerticalSyncEnabled
(window
, sfTrue
); sfRenderWindow_setPosition
(window
, (sfVector2i
){50, 50}); /* Create a graphical text to display */ sfFont
*font
= sfFont_createFromFile
("unifont-14.0.04.ttf"); if (!font
) return EXIT_FAILURE
; unsigned int size
= 160; sfThread_launch
(thread
); /* Start the game loop */ while (sfRenderWindow_isOpen
(window
)) { /* Process events */ while (sfRenderWindow_pollEvent
(window
, &event
)) { /* Close window : exit */ if (event.
type == sfEvtClosed
) sfRenderWindow_close
(window
); } if(codePoint
!= oldCodePt
) { sfGlyph glyph
= sfFont_getGlyph
(font
, codePoint
, size
, sfFalse
, 0); const sfTexture
*bitmap
= sfFont_getTexture
(font
, size
); if (!bitmap
) return EXIT_FAILURE
; sfImage
*chr
= sfTexture_copyToImage
(bitmap
); if(glyph.
bounds.
width > 0 && glyph.
bounds.
height > 0) { sfImage
*image
= sfImage_create
(glyph.
bounds.
width, glyph.
bounds.
height); sfImage_copyImage
(image
, chr
, 0, 0, glyph.
textureRect, sfFalse
); texture
= sfTexture_createFromImage
(image
, NULL
); if (!texture
) return EXIT_FAILURE
; sprite
= sfSprite_create
(); if (!sprite
) return EXIT_FAILURE
; sfSprite_setColor
(sprite
, sfBlue
); sfSprite_setTexture
(sprite
, texture
, sfFalse
); oldCodePt
= codePoint
; bColor
= codePoint
? sfYellow
: sfRed
; } else codePoint
= 0; } sfRenderWindow_clear
(window
, bColor
); /* Draw the sprite */ sfRenderWindow_drawSprite
(window
, sprite
, NULL
); /* Update the window */ sfRenderWindow_display
(window
); } /* Cleanup resources */ sfThread_destroy
(thread
); sfSprite_destroy
(sprite
); sfTexture_destroy
(texture
); sfFont_destroy
(font
); sfRenderWindow_destroy
(window
); return EXIT_SUCCESS
;}
