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/*
Ruby/SDL Ruby extension library for SDL
Copyright (C) 2001-2007 Ohbayashi Ippei
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_SDL_TTF
#include "rubysdl.h"
#include <SDL_ttf.h>
typedef struct {
TTF_Font* font;
} TTFont;
typedef SDL_Surface* (*RenderFunc)(TTF_Font *,const char *,SDL_Color,SDL_Color);
static int ttf_init = 0;
static VALUE cTTFFont = Qnil;
static void Font_free(TTFont *f)
{
if(!rubysdl_is_quit() && f->font)
TTF_CloseFont(f->font);
free(f);
}
DEFINE_GET_STRUCT(TTFont, Get_TTFont, cTTFFont, "SDL::TT::Font");
TTF_Font* Get_TTF_Font(VALUE obj)
{
TTFont* f = Get_TTFont(obj);
if (f->font == NULL)
rb_raise(eSDLError, "TTF is alreadly closed");
return f->font;
}
static VALUE TTF_s_alloc(VALUE klass)
{
TTFont* f = ALLOC(TTFont);
f->font = NULL;
return Data_Wrap_Struct(klass, 0, Font_free, f);
}
static VALUE TTF_create(TTF_Font* font)
{
VALUE newobj = TTF_s_alloc(cTTFFont);
Get_TTFont(newobj)->font = font;
return newobj;
}
static VALUE TTF_s_init(VALUE klass)
{
if(TTF_Init() == -1)
rb_raise(eSDLError,"Couldn't initialize TTF engine: %s",TTF_GetError());
ttf_init = 1;
return Qnil;
}
static VALUE TTF_s_init_p(VALUE class)
{
return INT2BOOL(TTF_WasInit());
}
static VALUE Font_s_open(int argc, VALUE *argv, VALUE class)
{
TTF_Font *font;
VALUE filename, size, index;
rb_scan_args( argc, argv, "21", &filename, &size, &index );
ExportFilenameStringValue(filename);
if(NIL_P(index))
font = TTF_OpenFont(RSTRING_PTR(filename), NUM2INT(size));
else
font = TTF_OpenFontIndex(RSTRING_PTR(filename),
NUM2INT(size), NUM2INT(index));
if(font == NULL)
rb_raise(eSDLError,"Couldn't open font %s: %s",
RSTRING_PTR(filename), TTF_GetError());
return TTF_create(font);
}
static VALUE Font_style(VALUE self)
{
return INT2FIX(TTF_GetFontStyle(Get_TTF_Font(self)));
}
static VALUE Font_set_style(VALUE self, VALUE style)
{
TTF_SetFontStyle(Get_TTF_Font(self), NUM2UINT(style));
return Qnil;
}
static VALUE Font_faces(VALUE self)
{
return UINT2NUM(TTF_FontFaces(Get_TTF_Font(self)));
}
static VALUE Font_fixedWidth_p(VALUE self)
{
return INT2BOOL(TTF_FontFaceIsFixedWidth(Get_TTF_Font(self)));
}
static VALUE string_or_nil(char* str)
{
if (str)
return rb_str_new2(str);
else
return Qnil;
}
static VALUE Font_familyName(VALUE self)
{
return string_or_nil(TTF_FontFaceFamilyName(Get_TTF_Font(self)));
}
static VALUE Font_styleName(VALUE self)
{
return string_or_nil(TTF_FontFaceStyleName(Get_TTF_Font(self)));
}
static VALUE Font_textSize(VALUE self, VALUE text)
{
int w,h;
StringValue(text);
#ifdef ENABLE_M17N
text = rb_str_export_to_enc(text, utf8_enc);
#endif
TTF_SizeUTF8(Get_TTF_Font(self), StringValueCStr(text), &w, &h);
return rb_ary_new3(2, INT2FIX(w), INT2FIX(h));
}
static VALUE Font_height(VALUE self)
{
return INT2FIX(TTF_FontHeight(Get_TTF_Font(self)));
}
static VALUE Font_ascent(VALUE self)
{
return INT2FIX(TTF_FontAscent(Get_TTF_Font(self)));
}
static VALUE Font_descent(VALUE self)
{
return INT2FIX(TTF_FontDescent(Get_TTF_Font(self)));
}
static VALUE Font_lineSkip(VALUE self)
{
return INT2FIX(TTF_FontLineSkip(Get_TTF_Font(self)));
}
static SDL_Color rgb_to_SDL_Color(VALUE r, VALUE g, VALUE b)
{
SDL_Color color;
color.r = NUM2UINT(r);
color.g = NUM2UINT(g);
color.b = NUM2UINT(b);
color.unused = 0;
return color;
}
static VALUE render(VALUE self, VALUE text,
VALUE fgr,VALUE fgg,VALUE fgb,
VALUE bgr,VALUE bgg,VALUE bgb,
int convert_enc,
RenderFunc renderer)
{
SDL_Surface *surface;
StringValue(text);
#ifdef ENABLE_M17N
if (convert_enc)
text = rb_str_export_to_enc(text, utf8_enc);
#endif
surface = renderer(Get_TTF_Font(self),
StringValueCStr(text),
rgb_to_SDL_Color(fgr, fgg, fgb),
rgb_to_SDL_Color(bgr, bgg, bgb));
if(surface == NULL)
return Qnil;
return Surface_create(surface);
}
static SDL_Surface* wrap_RenderUTF8_Solid(TTF_Font *font,
const char *text,
SDL_Color fg,
SDL_Color bg)
{
return TTF_RenderUTF8_Solid(font,text,fg);
}
static SDL_Surface* wrap_RenderUTF8_Blended(TTF_Font *font,
const char *text,
SDL_Color fg,
SDL_Color bg)
{
return TTF_RenderUTF8_Blended(font,text,fg);
}
/* 1 is ruby's zero */
static VALUE Font_renderSolidUTF8(VALUE self, VALUE text,
VALUE r, VALUE g, VALUE b)
{
return render(self, text, r, g, b, 1, 1, 1, 0,
wrap_RenderUTF8_Solid);
}
static VALUE Font_renderBlendedUTF8(VALUE self, VALUE text,
VALUE r, VALUE g, VALUE b)
{
return render(self, text, r, g, b, 1, 1, 1, 0,
wrap_RenderUTF8_Blended);
}
static VALUE Font_renderShadedUTF8(VALUE self, VALUE text,
VALUE fgr,VALUE fgg,VALUE fgb,
VALUE bgr,VALUE bgg,VALUE bgb)
{
return render(self, text, fgr, fgg, fgb, bgr, bgg, bgb, 0,
TTF_RenderUTF8_Shaded);
}
static VALUE Font_renderSolid(VALUE self, VALUE text,
VALUE r, VALUE g, VALUE b)
{
return render(self, text, r, g, b, 1, 1, 1, 1,
wrap_RenderUTF8_Solid);
}
static VALUE Font_renderBlended(VALUE self, VALUE text,
VALUE r, VALUE g, VALUE b)
{
return render(self, text, r, g, b, 1, 1, 1, 1,
wrap_RenderUTF8_Blended);
}
static VALUE Font_renderShaded(VALUE self, VALUE text,
VALUE fgr,VALUE fgg,VALUE fgb,
VALUE bgr,VALUE bgg,VALUE bgb)
{
return render(self, text, fgr, fgg, fgb, bgr, bgg, bgb, 1,
TTF_RenderUTF8_Shaded);
}
static VALUE Font_close(VALUE self)
{
TTFont* f = Get_TTFont(self);
if(!rubysdl_is_quit() && f->font)
TTF_CloseFont(f->font);
f->font = NULL;
return Qnil;
}
static VALUE Font_closed(VALUE self)
{
return INT2BOOL(Get_TTFont(self)->font == NULL);
}
static VALUE Font_hinting(VALUE self)
{
return INT2FIX(TTF_GetFontHinting(Get_TTF_Font(self)));
}
static VALUE Font_set_hinting(VALUE self, VALUE hinting)
{
TTF_SetFontHinting(Get_TTF_Font(self), NUM2INT(hinting));
return Qnil;
}
void rubysdl_init_TTF(VALUE mSDL)
{
cTTFFont = rb_define_class_under(mSDL, "TTF", rb_cObject);
rb_undef_alloc_func(cTTFFont);
rb_define_singleton_method(cTTFFont,"init",TTF_s_init,0);
rb_define_singleton_method(cTTFFont,"init?", TTF_s_init_p,0);
rb_define_singleton_method(cTTFFont,"open",Font_s_open,-1);
rb_define_method(cTTFFont,"style",Font_style,0);
rb_define_method(cTTFFont,"style=",Font_set_style,1);
rb_define_method(cTTFFont,"textSize",Font_textSize,1);
rb_define_method(cTTFFont,"faces",Font_faces,0);
rb_define_method(cTTFFont,"fixedWidth?",Font_fixedWidth_p,0);
rb_define_method(cTTFFont,"familyName",Font_familyName,0);
rb_define_method(cTTFFont,"styleName",Font_styleName,0);
rb_define_method(cTTFFont,"hinting",Font_hinting,0);
rb_define_method(cTTFFont,"hinting=",Font_set_hinting,1);
rb_define_method(cTTFFont,"height",Font_height,0);
rb_define_method(cTTFFont,"ascent",Font_ascent,0);
rb_define_method(cTTFFont,"descent",Font_descent,0);
rb_define_method(cTTFFont,"lineSkip",Font_lineSkip,0);
rb_define_method(cTTFFont,"renderSolidUTF8",Font_renderSolidUTF8,4);
rb_define_method(cTTFFont,"renderBlendedUTF8",Font_renderBlendedUTF8,4);
rb_define_method(cTTFFont,"renderShadedUTF8",Font_renderShadedUTF8,7);
rb_define_method(cTTFFont,"renderSolid",Font_renderSolid,4);
rb_define_method(cTTFFont,"renderBlended",Font_renderBlended,4);
rb_define_method(cTTFFont,"renderShaded",Font_renderShaded,7);
rb_define_method(cTTFFont,"close", Font_close, 0);
rb_define_method(cTTFFont,"closed?", Font_closed, 0);
rb_define_const(cTTFFont,"STYLE_NORMAL",UINT2NUM(TTF_STYLE_NORMAL));
rb_define_const(cTTFFont,"STYLE_BOLD",UINT2NUM(TTF_STYLE_BOLD));
rb_define_const(cTTFFont,"STYLE_ITALIC",UINT2NUM(TTF_STYLE_ITALIC));
rb_define_const(cTTFFont,"STYLE_UNDERLINE",UINT2NUM(TTF_STYLE_UNDERLINE));
rb_define_const(cTTFFont,"HINTING_NORMAL",INT2NUM(TTF_HINTING_NORMAL));
rb_define_const(cTTFFont,"HINTING_LIGHT",INT2NUM(TTF_HINTING_LIGHT));
rb_define_const(cTTFFont,"HINTING_MONO",INT2NUM(TTF_HINTING_MONO));
rb_define_const(cTTFFont,"HINTING_NONE",INT2NUM(TTF_HINTING_NONE));
}
void rubysdl_quit_TTF(void)
{
if(ttf_init)
TTF_Quit();
}
#else /* HAVE_SDL_TTF */
void rubysdl_init_TTF(void)
{
}
void rubysdl_quit_TTF(void)
{
}
#endif /* HAVE_SDL_TTF */
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