libdrawtext

diff examples/unicode/unicode.c @ 4:17fed026b24b

done with the unicode sample
author John Tsiombikas <nuclear@mutantstargoat.com>
date Fri, 16 Sep 2011 08:31:06 +0300
parents fe0c54e574ae
children 10cfb642d0b8
line diff
     1.1 --- a/examples/unicode/unicode.c	Thu Sep 15 23:32:39 2011 +0300
     1.2 +++ b/examples/unicode/unicode.c	Fri Sep 16 08:31:06 2011 +0300
     1.3 @@ -20,40 +20,47 @@
     1.4  /* XXX fonts are represented by the opaque struct dtx_font type, so you
     1.5   * need to create at least one with dtx_open_font (see main).
     1.6   */
     1.7 -struct dtx_font *freeserif, *klingon;
     1.8 +struct dtx_font *fntmain, *fntcjk, *fntklingon;
     1.9  
    1.10 -#define FONT_SIZE	24
    1.11 +#define FONT_SZ	24
    1.12  
    1.13  int main(int argc, char **argv)
    1.14  {
    1.15  	glutInit(&argc, argv);
    1.16  	glutInitWindowSize(512, 384);
    1.17  	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    1.18 -	glutCreateWindow("libdrawtext example: simple");
    1.19 +	glutCreateWindow("libdrawtext example: unicode");
    1.20  
    1.21  	glutDisplayFunc(disp);
    1.22  	glutReshapeFunc(reshape);
    1.23  	glutKeyboardFunc(keyb);
    1.24  
    1.25  	/* XXX dtx_open_font opens a font file and returns a pointer to dtx_font */
    1.26 -	if(!(freeserif = dtx_open_font("serif.ttf", 0))) {
    1.27 +	if(!(fntmain = dtx_open_font("serif.ttf", 0))) {
    1.28  		return 1;
    1.29  	}
    1.30 -	dtx_prepare_range(freeserif, FONT_SIZE, 0, 256);	/* prepare ASCII */
    1.31 -	dtx_prepare_range(freeserif, FONT_SIZE, 0x0370, 0x0400);	/* greek */
    1.32 -	dtx_prepare_range(freeserif, FONT_SIZE, 0x4e00, 0x9fc0);	/* kanji */
    1.33 +	dtx_prepare_range(fntmain, FONT_SZ, 0, 256);			/* ASCII */
    1.34 +	dtx_prepare_range(fntmain, FONT_SZ, 0x370, 0x400);		/* greek */
    1.35 +	dtx_prepare_range(fntmain, FONT_SZ, 0x400, 0x500);		/* cyrilic */
    1.36  
    1.37 -	if(!(klingon = dtx_open_font("klingon.ttf", 0))) {
    1.38 +	if(!(fntcjk = dtx_open_font("cjk.ttf", 0))) {
    1.39  		return 1;
    1.40  	}
    1.41 -	dtx_prepare_range(klingon, FONT_SIZE, 0xf8d0, 0xf900);
    1.42 +	dtx_prepare_range(fntcjk, FONT_SZ, 0x4e00, 0x9fc0);		/* kanji */
    1.43 +
    1.44 +	if(!(fntklingon = dtx_open_font("klingon.ttf", 0))) {
    1.45 +		return 1;
    1.46 +	}
    1.47 +	dtx_prepare_range(fntklingon, FONT_SZ, 0xf8d0, 0xf900);	/* klingon */
    1.48  
    1.49  	glutMainLoop();
    1.50  	return 0;
    1.51  }
    1.52  
    1.53 -const char *ascii_text = "Hello world!";
    1.54 +/* various UTF-8 strings */
    1.55 +const char *english_text = "Hello world!";
    1.56  const char *greek_text = "\xce\x9a\xce\xbf\xcf\x8d\xcf\x81\xce\xb1\xcf\x83\xce\xb7";
    1.57 +const char *russian_text = "\xd0\xa0\xd0\xb0\xd1\x81\xd1\x86\xd0\xb2\xd0\xb5\xd1\x82\xd0\xb0\xd0\xbb\xd0\xb8 \xd1\x8f\xd0\xb1\xd0\xbb\xd0\xbe\xd0\xbd\xd0\xb8 \xd0\xb8 \xd0\xb3\xd1\x80\xd1\x83\xd1\x88\xd0\xb8";
    1.58  const char *kanji_text = "\xe4\xb9\x97\xe4\xba\xac";
    1.59  const char *klingon_text = "\xef\xa3\xa3\xef\xa3\x9d\xef\xa3\x93\xef\xa3\x98\xef\xa3\x9d\xef\xa3\xa2\xef\xa3\xa1\xef\xa3\x9d\xef\xa3\x99";
    1.60  
    1.61 @@ -65,21 +72,26 @@
    1.62  	glMatrixMode(GL_MODELVIEW);
    1.63  	glLoadIdentity();
    1.64  
    1.65 -	dtx_use_font(freeserif, FONT_SIZE);
    1.66 +	dtx_use_font(fntmain, FONT_SZ);
    1.67  
    1.68  	glTranslatef(-200, 150, 0);
    1.69  	/* XXX call dtx_string to draw utf-8 text.
    1.70  	 * any transformations and the current color apply
    1.71  	 */
    1.72 -	dtx_string(ascii_text);
    1.73 +	dtx_string(english_text);
    1.74  
    1.75  	glTranslatef(0, -40, 0);
    1.76  	dtx_string(greek_text);
    1.77  
    1.78  	glTranslatef(0, -40, 0);
    1.79 +	dtx_string(russian_text);
    1.80 +
    1.81 +	dtx_use_font(fntcjk, FONT_SZ);
    1.82 +
    1.83 +	glTranslatef(0, -40, 0);
    1.84  	dtx_string(kanji_text);
    1.85  
    1.86 -	dtx_use_font(klingon, FONT_SIZE);
    1.87 +	dtx_use_font(fntklingon, FONT_SZ);
    1.88  
    1.89  	glTranslatef(0, -40, 0);
    1.90  	dtx_string(klingon_text);