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/*
Ruby/SDL Ruby extension library for SDL
Copyright (C) 2001 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 SDL_Surface* (*RenderFunc)(TTF_Font *,const char *,SDL_Color);
static int ttf_initialized=0;
static VALUE sdl_ttf_init(VALUE class)
{
if( TTF_Init()== -1 )
rb_raise(eSDLError,"Couldn't initialize TTF engine: %s",TTF_GetError());
ttf_initialized=1;
return Qnil;
}
static VALUE sdl_ttf_open(VALUE class,VALUE filename,VALUE size)
{
TTF_Font *font;
font=TTF_OpenFont( STR2CSTR(filename),NUM2INT(size) );
if( font==NULL )
rb_raise(eSDLError,"Couldn't open font %s: %s",STR2CSTR(filename),
TTF_GetError());
return Data_Wrap_Struct(class,0,TTF_CloseFont,font);
}
static VALUE sdl_ttf_getFontStyle(VALUE obj)
{
TTF_Font *font;
Data_Get_Struct(obj,TTF_Font,font);
return INT2FIX( TTF_GetFontStyle(font) );
}
static VALUE sdl_ttf_setFontStyle(VALUE obj,VALUE style)
{
TTF_Font *font;
Data_Get_Struct(obj,TTF_Font,font);
TTF_SetFontStyle(font,NUM2UINT(style));
return Qnil;
}
static VALUE sdl_ttf_sizeText(VALUE obj,VALUE text)
{
TTF_Font *font;
int w,h;
Data_Get_Struct(obj,TTF_Font,font);
TTF_SizeUTF8(font,STR2CSTR(text),&w,&h);
return rb_ary_new3(2,INT2FIX(w),INT2FIX(h));
}
static VALUE ttf_draw(VALUE obj,VALUE dest,VALUE text,VALUE x,
VALUE y,VALUE r,VALUE g,VALUE b,RenderFunc render)
{
TTF_Font *font;
SDL_Surface *destSurface, *tmpSurface;
SDL_Color fg;
SDL_Rect destRect;
int result;
char *ctext=STR2CSTR(text);
/* If text=="" , TTF_RenderUTF8_Solid() and etc fail to render */
if( ctext[0]=='\0' )return INT2FIX(0);
if( !rb_obj_is_kind_of( dest,cSurface ) )
rb_raise( rb_eArgError,"type mismatch(expect Surface)");
Data_Get_Struct(obj,TTF_Font,font);
Data_Get_Struct(dest,SDL_Surface,destSurface);
fg.r=NUM2UINT(r); fg.g=NUM2UINT(g); fg.b=NUM2UINT(b);
SetRect(destRect,x,y,1,1);
tmpSurface=render(font,ctext,fg);
if( tmpSurface==NULL )
rb_raise(eSDLError,"Text Render fail: %s",TTF_GetError());
result=SDL_BlitSurface(tmpSurface,NULL,destSurface,&destRect);
SDL_FreeSurface(tmpSurface);
if( result == -1 ){
rb_raise(eSDLError,"SDL_BlitSurface fail: %s",SDL_GetError());
}
return INT2NUM(result);
}
static VALUE sdl_ttf_drawSolidUTF8(VALUE obj,VALUE dest,VALUE text,VALUE x,
VALUE y,VALUE r,VALUE g,VALUE b)
{
return ttf_draw(obj,dest,text,x,y,r,g,b,TTF_RenderUTF8_Solid);
}
static VALUE sdl_ttf_drawBlendedUTF8(VALUE obj,VALUE dest,VALUE text,VALUE x,
VALUE y,VALUE r,VALUE g,VALUE b)
{
return ttf_draw(obj,dest,text,x,y,r,g,b,TTF_RenderUTF8_Blended);
}
static void defineConstForTTF()
{
rb_define_const(cTTF,"STYLE_NORMAL",UINT2NUM(TTF_STYLE_NORMAL));
rb_define_const(cTTF,"STYLE_BOLD",UINT2NUM(TTF_STYLE_BOLD));
rb_define_const(cTTF,"STYLE_ITALIC",UINT2NUM(TTF_STYLE_ITALIC));
rb_define_const(cTTF,"STYLE_UNDERLINE",UINT2NUM(TTF_STYLE_UNDERLINE));
}
void init_ttf()
{
cTTF=rb_define_class_under(mSDL,"TTF",rb_cObject);
rb_define_singleton_method(cTTF,"init",sdl_ttf_init,0);
rb_define_singleton_method(cTTF,"open",sdl_ttf_open,2);
rb_define_method(cTTF,"style",sdl_ttf_getFontStyle,0);
rb_define_method(cTTF,"style=",sdl_ttf_setFontStyle,1);
rb_define_method(cTTF,"textSize",sdl_ttf_sizeText,1);
rb_define_method(cTTF,"drawSolidUTF8",sdl_ttf_drawSolidUTF8,7);
rb_define_method(cTTF,"drawBlendedUTF8",sdl_ttf_drawBlendedUTF8,7);
defineConstForTTF();
}
void quit_ttf()
{
if(ttf_initialized)
TTF_Quit();
}
#endif /* HAVE_SDL_TTF */
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