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#ifndef _WIN32
/*
Copyright (C) 2002 Antoine Rousseau
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
*/
/*#include <m_imp.h>*/
#include "m_pd.h"
#include "g_canvas.h"
#include "m_imp.h"
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <libgen.h>
#include <string.h>
#if (PD_MAJOR_VERSION == 0) && (PD_MINOR_VERSION < 46)
extern t_canvas *canvas_list;
#else
#define canvas_list pd_this->pd_canvaslist
#endif
extern int canvas_getdollarzero( void);
struct _canvasenvironment
{
t_symbol *ce_dir; /* directory patch lives in */
int ce_argc; /* number of "$" arguments */
t_atom *ce_argv; /* array of "$" arguments */
int ce_dollarzero; /* value of "$0" */
};
typedef struct _relativepath
{
t_object x_obj;
t_canvas *x_canvas;
int x_dolzero;
int x_realized;
} t_relativepath;
t_class *relativepath_class;
void relativepath_setup(void);
static t_glist *getcanvas(t_glist *can,int d0)
{
t_canvas *retcan=0;
t_gobj *ob;
if((can->gl_env)&&(can->gl_env->ce_dollarzero==d0))
{
return can;
}
ob=can->gl_list;
while(ob&&(retcan==0))
{
if (pd_class(&ob->g_pd) == canvas_class)
retcan=getcanvas((t_glist *)ob,d0);
ob=ob->g_next;
}
if((!retcan)&&(can->gl_next)) retcan=getcanvas((t_glist *)can->gl_next,d0);
return retcan;
}
static void relativepath_symbol(t_relativepath *x,t_symbol *sym)
{
t_canvas *can=0;
t_symbol *s=sym;
char *instr=sym->s_name,*outstr=instr,
*candir,
canname[MAXPDSTRING],totaldir[MAXPDSTRING],
*cnamedir;
unsigned int n,i=0;
if(!x->x_realized) can=(t_canvas *)getcanvas(canvas_list,x->x_dolzero);
if(can)
{
x->x_canvas = can;
x->x_realized = 1;
//post("found $0 canvas : %x %d ",x->x_canvas, x->x_canvas->gl_env->ce_dollarzero );
}
if(!instr) return;
candir=canvas_getdir(x->x_canvas)->s_name;
if(!candir) candir="";
strcpy(canname,x->x_canvas->gl_name->s_name);
//post("canname=%s",canname);
cnamedir=dirname(canname);
if (strcmp(cnamedir,"."))
{
sprintf(totaldir,"%s/%s",candir,cnamedir);
}
else
strcpy(totaldir,candir);
//post("dir=%s",totaldir);
n=strlen(totaldir);
if(strlen(instr)<=n) goto end;
while(i<n)
{
if(instr[i]!=totaldir[i]) goto end;
i++;
}
if(instr[n]=='/')
{
outstr=strdup(instr+n+1);
s=gensym(outstr);
}
end:
outlet_symbol(x->x_obj.ob_outlet,s);
}
static void *relativepath_new(t_float dolzero)
{
t_relativepath *x = (t_relativepath *)pd_new(relativepath_class);
int d0;
outlet_new(&x->x_obj, 0);
x->x_canvas = canvas_getcurrent();
x->x_dolzero = dolzero;
x->x_realized=dolzero?0:1;
return (void *)x;
}
void relativepath_setup(void)
{
relativepath_class = class_new(gensym("relativepath"),(t_newmethod)relativepath_new,
0, sizeof(t_relativepath), 0,A_DEFFLOAT,0);
class_addsymbol(relativepath_class, relativepath_symbol);
}
#endif /* NOT _WIN32 */
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