fix for showing attributes on select (and recreate the object on edit)

reconsidered flext::buffer:Update
build system for flext-based externals
added object construction and destruction flags

svn path=/trunk/; revision=2438

4 files changed, 34 insertions, 7 deletions

diff --git a/externals/grill/flext/source/flbase.cpp b/externals/grill/flext/source/flbase.cpp
index 032f869d..fd666632 100644
--- a/externals/grill/flext/source/flbase.cpp
+++ b/externals/grill/flext/source/flbase.cpp
@@ -44,6 +44,9 @@ int flext_obj::m_holdaargc = 0;
 const t_atom *flext_obj::m_holdaargv = NULL;
 bool flext_obj::process_attributes = false;
 
+bool flext_obj::initing = false;
+bool flext_obj::exiting = false;
+
 void flext_obj::ProcessAttributes(bool attr) { process_attributes = attr; }
 
 /////////////////////////////////////////////////////////
@@ -51,10 +54,10 @@ void flext_obj::ProcessAttributes(bool attr) { process_attributes = attr; }
 //
 /////////////////////////////////////////////////////////
 flext_obj :: FLEXT_CLASSDEF(flext_obj)()
-           : x_obj(m_holder)
-           , procattr(m_holdattr)
-           , init_ok(true)
-           , m_name(m_holdname)
+    : x_obj(m_holder)
+    , procattr(m_holdattr)
+    , init_ok(true)
+    , m_name(m_holdname)
 {
 #if FLEXT_SYS == FLEXT_SYS_PD
     m_canvas = canvas_getcurrent();
diff --git a/externals/grill/flext/source/flbase.h b/externals/grill/flext/source/flbase.h
index a9a9d8e5..47db0618 100644
--- a/externals/grill/flext/source/flbase.h
+++ b/externals/grill/flext/source/flbase.h
@@ -219,6 +219,9 @@ class FLEXT_SHARE FLEXT_CLASSDEF(flext_obj):
         //! Flag for successful object construction
         bool				init_ok;
 
+        // flags for init and exit procedure;
+        static bool initing,exiting;
+
 	public:
 
     	//! Creation callback
@@ -242,6 +245,14 @@ class FLEXT_SHARE FLEXT_CLASSDEF(flext_obj):
 		//! Check whether construction was successful
 		bool InitOk() const { return init_ok; }
 
+        /*! Return true if in object initialization phase
+            true when in constructor or Init, false when in Finalize
+        */
+        static bool Initing() { return initing; }
+
+        //! Return true if in object destruction phase (Exit or destructor)
+        static bool Exiting() { return exiting; }
+
 		// Definitions for library objects
 		static void lib_init(const char *name,void setupfun(),bool attr);
 		static void obj_add(bool lib,bool dsp,bool attr,const char *idname,const char *names,void setupfun(t_classid),FLEXT_CLASSDEF(flext_obj) *(*newfun)(int,t_atom *),void (*freefun)(flext_hdr *),int argtp1,...);
diff --git a/externals/grill/flext/source/flbuf.cpp b/externals/grill/flext/source/flbuf.cpp
index 4dc0b6e8..649e1b8d 100644
--- a/externals/grill/flext/source/flbuf.cpp
+++ b/externals/grill/flext/source/flbuf.cpp
@@ -81,7 +81,7 @@ int flext::buffer::Set(const t_symbol *s,bool nameonly)
         if(!arr)
         {
             if (*GetString(sym)) FLEXT_LOG1("buffer: no such array '%s'",GetString(sym));
-            sym = NULL;
+//            sym = NULL;
             if(valid) ret = -1;
         }
         else if(!garray_getfloatarray(arr, &frames1, &data1))
@@ -147,11 +147,13 @@ bool flext::buffer::Valid() const
 
 bool flext::buffer::Update()
 {
-    if(!Ok()) return false;
+//    if(!Ok()) return false;
 
     bool ok = false;
 
 #if FLEXT_SYS == FLEXT_SYS_PD
+    if(!sym || !arr) return data == NULL;
+
     int frames1;
     t_sample *data1;
     if(!garray_getfloatarray(arr, &frames1, &data1)) {
@@ -166,6 +168,8 @@ bool flext::buffer::Update()
         ok = true;
     }
 #elif FLEXT_SYS == FLEXT_SYS_MAX
+    if(!sym) return data == NULL;
+
     if(sym->s_thing) {
         const _buffer *p = (const _buffer *)sym->s_thing;
         if(data != p->b_samples || chns != p->b_nchans || frames != p->b_frames) {
diff --git a/externals/grill/flext/source/fllib.cpp b/externals/grill/flext/source/fllib.cpp
index 509ba2c2..2132ddf2 100755
--- a/externals/grill/flext/source/fllib.cpp
+++ b/externals/grill/flext/source/fllib.cpp
@@ -413,6 +413,7 @@ flext_hdr *flext_obj::obj_new(const t_symbol *s,int _argc_,t_atom *argv)
                 flext_obj::m_holder = obj;
 			    flext_obj::m_holdname = s;
 			    flext_obj::m_holdattr = lo->attr;
+                flext_obj::initing = true;
 
 			    // get actual flext object (newfun calls "new flext_obj()")
 			    if(lo->argc >= 0)
@@ -446,6 +447,8 @@ flext_hdr *flext_obj::obj_new(const t_symbol *s,int _argc_,t_atom *argv)
 				    // here, inlets, outlets, methods and attributes can be set up
 				    ok = obj->data->Init();
 
+                    flext_obj::initing = false;
+
 				    // call another virtual init function 
 				    if(ok) ok = obj->data->Finalize();
 
@@ -467,6 +470,8 @@ flext_hdr *flext_obj::obj_new(const t_symbol *s,int _argc_,t_atom *argv)
                 ok = false;
             }
 
+            flext_obj::initing = false;
+
             if(!ok) { 
 				// there was some init error, free object
 				lo->freefun(obj); 
@@ -500,6 +505,8 @@ void flext_obj::obj_free(flext_hdr *h)
 
 	if(lcl) {
         try {
+            flext_obj::exiting = true;
+
 		    // call virtual exit function
 		    hdr->data->Exit();
 
@@ -515,7 +522,9 @@ void flext_obj::obj_free(flext_hdr *h)
         catch(...) {
     		error("%s - Unknown exception while destroying object",GetString(name));
         }
-	}
+
+        flext_obj::exiting = false;
+    }
 #ifdef FLEXT_DEBUG
 	else 
 #if FLEXT_SYS == FLEXT_SYS_MAX