From 17ec1deb74e2e934dc11fb4d9a2f8c6cef34c5a7 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <eighthave@users.sourceforge.net>
Date: Mon, 9 Jul 2007 20:45:58 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r7949, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/moonlib/; revision=7950
---
 relativepath.c | 146 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 relativepath.c

(limited to 'relativepath.c')

diff --git a/relativepath.c b/relativepath.c
new file mode 100644
index 0000000..f599222
--- /dev/null
+++ b/relativepath.c
@@ -0,0 +1,146 @@
+/*
+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 <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <libgen.h>
+#include <string.h>
+
+extern t_canvas *canvas_list;	    	    /* list of all root canvases */
+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);
+}
+
-- 
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