Class: SDL::TTF

Inherits:
Data
  • Object
show all
Defined in:
ext/sdl/sdl.c

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.open(path, size) ⇒ Object

// SDL::TTFFont methods:



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# File 'ext/sdl/sdl.c', line 1015

static VALUE Font_s_open(VALUE self, VALUE path, VALUE size) {
  UNUSED(self);

  ExportStringValue(path);

  TTF_Font* font = TTF_OpenFont(RSTRING_PTR(path), NUM2UINT16(size));

  if (!font)
    FAILURE("Font.open");

  return TypedData_Wrap_Struct(cTTFFont, &_TTFFont_type, font);
}

Instance Method Details

#draw(dst, text, x, y, c) ⇒ Object 



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# File 'ext/sdl/sdl.c', line 1053

static VALUE Font_draw(VALUE self, VALUE dst, VALUE text, VALUE x, VALUE y, VALUE c) {
  VALUE img = Font_render(self, dst, text, c);
  return Renderer_blit(dst, img, x, y, Qnil, Qnil, Qnil, Qnil);
}

#height ⇒ Object 



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# File 'ext/sdl/sdl.c', line 1028

static VALUE Font_height(VALUE self) {
  DEFINE_SELF(TTFFont, font, self);

  return INT2FIX(TTF_FontHeight(font));
}

#render(dst, text, c) ⇒ Object 



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# File 'ext/sdl/sdl.c', line 1034

static VALUE Font_render(VALUE self, VALUE dst, VALUE text, VALUE c) {
  DEFINE_SELF(TTFFont, font, self);
  DEFINE_SELF(PixelFormat, format, rb_ivar_get(dst, id_iv_format));

  SDL_Surface *result;
  SDL_Color fg;

  SDL_GetRGBA(VALUE2COLOR(c), format,
              &(fg.r), &(fg.g), &(fg.b), &(fg.a));

  ExportStringValue(text);
  result = TTF_RenderUTF8_Blended(font, StringValueCStr(text), fg);

  if (!result)
    TTF_FAILURE("Font.render");

  return TypedData_Wrap_Struct(cSurface, &_Surface_type, result);
}

#text_size(text) ⇒ Object 



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# File 'ext/sdl/sdl.c', line 1058

static VALUE Font_text_size(VALUE self, VALUE text) {
  DEFINE_SELF(TTFFont, font, self);
  int w = 1, h = 2, result;

  ExportStringValue(text);
  result = TTF_SizeText(font, StringValueCStr(text), &w, &h);

  if (!result) {
    return rb_ary_new_from_args(2, INT2FIX(w), INT2FIX(h));
  } else {
    FAILURE("SDL::TTF#text_size");
  }
}