Extended predefined dynamics for subgraphs

xtt/lib/glow/src/glow.h

@@ -235,6 +235,13 @@ typedef enum {
 
 } glow_eCycle;
 
+//! Userdata callback type
+typedef enum {
+  glow_eUserdataCbType_Node,	//!< Userdata in a GrowNode
+  glow_eUserdataCbType_Ctx,	//!< Userdata in GrowCtx
+  glow_eUserdataCbType_NodeClass //!< Userdata in a GlowNodeClass
+} glow_eUserdataCbType;
+
 //! Pass for java export
 typedef enum {
 	glow_eExportPass_Init,
@@ -1001,6 +1008,7 @@ typedef enum {
 	glow_eSave_NodeClass_dyn_attr3	        = 326,
 	glow_eSave_NodeClass_dyn_attr4	        = 327,
 	glow_eSave_NodeClass_input_focus_mark   = 328,
+	glow_eSave_NodeClass_userdata_cb	= 329,
 	glow_eSave_ConClass_cc_name		= 400,
 	glow_eSave_ConClass_con_type		= 401,
 	glow_eSave_ConClass_corner		= 402,
@@ -1133,6 +1141,7 @@ typedef enum {
 	glow_eSave_GrowRect_shadow             	= 1915,
 	glow_eSave_GrowRect_shadow_contrast     = 1916,
 	glow_eSave_GrowRect_disable_shadow      = 1917,
+	glow_eSave_GrowRect_invisible      	= 1918,
 	glow_eSave_GrowLine_x_right		= 2000,
 	glow_eSave_GrowLine_x_left		= 2001,
 	glow_eSave_GrowLine_y_high		= 2002,
@@ -1195,6 +1204,7 @@ typedef enum {
 	glow_eSave_GrowCtx_dyn_attr3	        = 2241,
 	glow_eSave_GrowCtx_dyn_attr4	        = 2242,
 	glow_eSave_GrowCtx_input_focus_mark     = 2243,
+	glow_eSave_GrowCtx_userdata_cb	        = 2244,
 	glow_eSave_GrowSubAnnot_x_right		= 2300,
 	glow_eSave_GrowSubAnnot_x_left		= 2301,
 	glow_eSave_GrowSubAnnot_y_high		= 2302,

xtt/lib/glow/src/glow_array.cpp

@@ -44,6 +44,7 @@
 #include "glow_growfolder.h"
 #include "glow_growtable.h"
 #include "glow_msg.h"
+#include "co_cdh.h"
 
 GlowArray::GlowArray( int allocate, int incr) : allocated( allocate),
 	alloc_incr(incr), a_size(0)
@@ -294,7 +295,7 @@ void GlowArray::copy_from( const GlowArray& array)
 	// Fix, This should be done in the copy constructor !!!
 	if ( n->ctx->userdata_copy_callback)
 	  (n->ctx->userdata_copy_callback)( n, 
-	     ((GrowBar *)array.a[i])->user_data, &n->user_data);
+	     ((GrowBar *)array.a[i])->user_data, &n->user_data, glow_eUserdataCbType_Node);
         insert( n);
         break;
       }
@@ -309,7 +310,7 @@ void GlowArray::copy_from( const GlowArray& array)
         n->configure_curves();
 	if ( n->ctx->userdata_copy_callback)
 	  (n->ctx->userdata_copy_callback)( n, 
-	     ((GrowTrend *)(array.a[i]))->user_data, &n->user_data);
+	     ((GrowTrend *)(array.a[i]))->user_data, &n->user_data, glow_eUserdataCbType_Node);
         insert( n);
         break;
       }
@@ -321,7 +322,7 @@ void GlowArray::copy_from( const GlowArray& array)
 	// Fix, This should be done in the copy constructor !!!
 	if ( n->ctx->userdata_copy_callback)
 	  (n->ctx->userdata_copy_callback)( n, 
-	     ((GrowWindow *)array.a[i])->user_data, &n->user_data);
+	     ((GrowWindow *)array.a[i])->user_data, &n->user_data, glow_eUserdataCbType_Node);
 	n->window_ctx = 0;
 	n->v_scrollbar = 0;
 	n->h_scrollbar = 0;
@@ -338,7 +339,7 @@ void GlowArray::copy_from( const GlowArray& array)
 	// Fix, This should be done in the copy constructor !!!
 	if ( n->ctx->userdata_copy_callback)
 	  (n->ctx->userdata_copy_callback)( n, 
-	     ((GrowFolder *)array.a[i])->user_data, &n->user_data);
+	     ((GrowFolder *)array.a[i])->user_data, &n->user_data, glow_eUserdataCbType_Node);
 	n->window_ctx = 0;
 	n->v_scrollbar = 0;
 	n->h_scrollbar = 0;
@@ -355,7 +356,7 @@ void GlowArray::copy_from( const GlowArray& array)
 	// Fix, This should be done in the copy constructor !!!
 	if ( n->ctx->userdata_copy_callback)
 	  (n->ctx->userdata_copy_callback)( n, 
-	     ((GrowTable *)array.a[i])->user_data, &n->user_data);
+	     ((GrowTable *)array.a[i])->user_data, &n->user_data, glow_eUserdataCbType_Node);
 	n->v_scrollbar = 0;
 	n->h_scrollbar = 0;
 	n->cell_value = 0;
@@ -1159,7 +1160,7 @@ int GlowArray::find_by_name( char *name, GlowArrayElem **element)
   for ( i = 0; i < a_size; i++)
   {
     a[i]->get_object_name( object_name);
-    if ( strcmp( name, object_name) == 0)
+    if ( cdh_NoCaseStrcmp( name, object_name) == 0)
     {
       *element = a[i];
       return 1;

xtt/lib/glow/src/glow_ctx.h

@@ -26,9 +26,9 @@ typedef struct {
   int	offset_y;	//!< Offset from workarea border to displayed window.
 } glow_sScroll;
 
-typedef void (*glow_tUserDataSaveCb) ( ofstream *, GlowArrayElem *);
-typedef void (*glow_tUserDataOpenCb) ( ifstream *, GlowArrayElem *);
-typedef void (*glow_tUserDataCopyCb) ( GlowArrayElem *, void *, void **);
+typedef void (*glow_tUserDataSaveCb) ( ofstream *, void *, glow_eUserdataCbType);
+typedef void (*glow_tUserDataOpenCb) ( ifstream *, void *, glow_eUserdataCbType);
+typedef void (*glow_tUserDataCopyCb) ( void *, void *, void **, glow_eUserdataCbType);
 
 //! Class for a drawing window populated with drawing objects and components.
 /*! GlowCtx is the base class for the drawing area in Glow. It contains array with

xtt/lib/glow/src/glow_growapi.cpp

@@ -1217,6 +1217,11 @@ int grow_GetObjectAttrInfo( grow_tObject object, char *transtab,
       attrinfo[i].type = glow_eType_Relief;
       attrinfo[i++].size = sizeof( op->relief);
       
+      strcpy( attrinfo[i].name, "invisible");
+      attrinfo[i].value_p = &op->invisible;
+      attrinfo[i].type = glow_eType_Boolean;
+      attrinfo[i++].size = sizeof( op->invisible);
+      
       strcpy( attrinfo[i].name, "disable_shadow");
       attrinfo[i].value_p = &op->disable_shadow;
       attrinfo[i].type = glow_eType_Boolean;
@@ -2381,7 +2386,7 @@ int grow_GetSubGraphAttrInfo( grow_tCtx ctx, char *transtab, grow_sAttrInfo **in
   int  dynsize;
   char *name;
 
-  attrinfo = (grow_sAttrInfo *) calloc( 20, sizeof(grow_sAttrInfo)); 
+  attrinfo = (grow_sAttrInfo *) calloc( 30, sizeof(grow_sAttrInfo)); 
 
   i = 0;
 
@@ -3526,6 +3531,12 @@ void grow_GetNodeClassDynType( grow_tNodeClass nodeclass, int *dyn_type,
   *dyn_action_type = base_nc->dyn_action_type;
 }
 
+void grow_GetObjectClassUserData( grow_tObject object, void **user_data)
+{
+  GlowNodeClass *base_nc = ((GrowNode *)object)->nc->get_base_nc();
+  base_nc->get_user_data( user_data);
+}
+
 void grow_GetSubGraphDynType( grow_tCtx ctx, int *dyn_type, int *dyn_action_type)
 {
   *dyn_type = ctx->dyn_type;
@@ -4087,9 +4098,9 @@ int grow_ImageUpdate( grow_tObject object)
 extern "C" 
 #endif
 void grow_RegisterUserDataCallbacks( grow_tCtx ctx,
-				     void (*save)( void *, grow_tObject),
-				     void (*open)( void *, grow_tObject),
-				     void (*copy)( grow_tObject, void *, void **))
+				     void (*save)( void *, void *, glow_eUserdataCbType),
+				     void (*open)( void *, void *, glow_eUserdataCbType),
+				     void (*copy)( void *, void *, void **, glow_eUserdataCbType))
 {
   ((GrowCtx *)ctx)->register_userdata_callbacks( 
 	   (glow_tUserDataSaveCb) save,
@@ -4262,6 +4273,12 @@ int grow_GetMenuParent( grow_tObject menu, grow_tObject *parent)
 {
   return ((GrowMenu *)menu)->get_parent( (GlowArrayElem **)parent);
 }
+
+int grow_SetFolderIndex( grow_tObject folder, int idx)
+{
+  return ((GrowFolder *)folder)->set_folder( idx);
+}
+
 /*@}*/
 
 

xtt/lib/glow/src/glow_growapi.h

@@ -1764,11 +1764,18 @@ typedef GlowTraceData glow_sTraceData;
   */
   void grow_GetObjectClassCycle( grow_tObject object, glow_eCycle *cycle);
 
+  //! Get userdata for the nodeclass of an object.
+  /*!
+    \param object	Object.
+    \param user_data	Userdata of the object's nodeclass.
+  */
+  void grow_GetObjectClassUserData( grow_tObject object, void **user_data);
+
   //! Get nodeclass dyntype and actiontype.
   /*!
     \param nodeclass	Nodeclass.
     \param dyn_type	Dyntype of the nodeclass.
-    \param dyn_action_type Actionetype of the nodeclass.
+    \param dyn_action_type Actiontype of the nodeclass.
   */
   void grow_GetNodeClassDynType( grow_tNodeClass nodeclass, int *dyn_type, int *dyn_action_type);
 
@@ -2585,9 +2592,9 @@ typedef GlowTraceData glow_sTraceData;
     \param copy		Callback function that will be called when userdata is copied.
   */
   void grow_RegisterUserDataCallbacks( grow_tCtx ctx,
-				       void (*save)( void *, grow_tObject),
-				       void (*open)( void *, grow_tObject),
-				       void (*copy)( grow_tObject, void *, void **));
+				       void (*save)( void *, void *, glow_eUserdataCbType),
+				       void (*open)( void *, void *, glow_eUserdataCbType),
+				       void (*copy)( void *, void *, void **, glow_eUserdataCbType));
 
   //! Get grow versions.
   /*!
@@ -2805,6 +2812,7 @@ typedef GlowTraceData glow_sTraceData;
   int grow_GetMenuInputFocus( grow_tObject menu);
   void grow_GetSubmenuPosition( grow_tObject menu, int item, double *x, double *y);
   int grow_GetMenuParent( grow_tObject menu, grow_tObject *parent);
+  int grow_SetFolderIndex( grow_tObject folder, int idx);
 
 /*@}*/
 #if defined __cplusplus

xtt/lib/glow/src/glow_growbar.cpp

@@ -64,7 +64,7 @@ void GrowBar::save( ofstream& fp, glow_eSaveMode mode)
   GrowRect::save( fp, mode);
   if ( user_data && ctx->userdata_save_callback) {
     fp << int(glow_eSave_GrowBar_userdata_cb) << endl;
-    (ctx->userdata_save_callback)(&fp, this);
+    (ctx->userdata_save_callback)(&fp, this, glow_eUserdataCbType_Node);
   }
   fp << int(glow_eSave_End) << endl;
 }
@@ -143,7 +143,7 @@ void GrowBar::open( ifstream& fp)
         break;
       case glow_eSave_GrowBar_userdata_cb:
 	if ( ctx->userdata_open_callback)
-	  (ctx->userdata_open_callback)(&fp, this);
+	  (ctx->userdata_open_callback)(&fp, this, glow_eUserdataCbType_Node);
 	break;
       case glow_eSave_End: end_found = 1; break;
       default:

xtt/lib/glow/src/glow_growctx.cpp

@@ -1728,6 +1728,10 @@ void GrowCtx::save_grow( ofstream& fp, glow_eSaveMode mode)
   fp << int(glow_eSave_GrowCtx_mb3_action) << FSPACE << int(mb3_action) << endl;
   fp << int(glow_eSave_GrowCtx_translate_on) << FSPACE << translate_on << endl;
   fp << int(glow_eSave_GrowCtx_input_focus_mark) << FSPACE << int(input_focus_mark) << endl;
+  if ( user_data && userdata_save_callback) {
+    fp << int(glow_eSave_GrowCtx_userdata_cb) << endl;
+    (userdata_save_callback)(&fp, this, glow_eUserdataCbType_Ctx);
+  }
   fp << int(glow_eSave_End) << endl;
 }
 
@@ -1863,6 +1867,10 @@ void GrowCtx::open_grow( ifstream& fp)
 	fp >> tmp;
 	input_focus_mark = (glow_eInputFocusMark)tmp;
 	break;
+      case glow_eSave_GrowCtx_userdata_cb:
+	if ( userdata_open_callback)
+	  (userdata_open_callback)(&fp, this, glow_eUserdataCbType_Ctx);
+	break;
       default:
         cout << "GrowCtx:open syntax error" << endl;
         fp.getline( dummy, sizeof(dummy));
@@ -1950,6 +1958,10 @@ int GrowCtx::save_subgraph( char *filename, glow_eSaveMode mode)
   fp << int(glow_eSave_NodeClass_x0) << FSPACE << x0 << endl;  
   fp << int(glow_eSave_NodeClass_x1) << FSPACE << x1 << endl;  
   fp << int(glow_eSave_NodeClass_input_focus_mark) << FSPACE << int(input_focus_mark) << endl;  
+  if ( user_data && userdata_save_callback) {
+    fp << int(glow_eSave_NodeClass_userdata_cb) << endl;
+    (userdata_save_callback)(&fp, this, glow_eUserdataCbType_Ctx);
+  }
   fp <<	int(glow_eSave_End) << endl;
 
   // End Array

xtt/lib/glow/src/glow_growfolder.cpp

@@ -640,7 +640,24 @@ void GrowFolder::set_textbold( int bold)
   draw();
 }
 
+int GrowFolder::set_folder( int idx)
+{
+  if ( idx >= folders || idx < 0)
+    return 0;
+
+  // Change file
+  strcpy( input_file_name, folder_file_names[idx]);
+  window_scale = folder_scale[idx];
+  vertical_scrollbar = folder_v_scrollbar[idx];
+  horizontal_scrollbar = folder_h_scrollbar[idx];
+  current_folder = idx;
+  // ctx->set_nodraw();
+  GrowWindow::update_attributes();
+  // ctx->reset_nodraw();
+  draw();
 
+  return 1;
+}
 
 
 

xtt/lib/glow/src/glow_growfolder.h

@@ -206,6 +206,11 @@ class GrowFolder : public GrowWindow {
   void set_original_text_color( glow_eDrawType drawtype) 
 	{ text_color_drawtype = drawtype; draw();};
 
+  //! Set displayed folder.
+  /*!
+    \param idx	Folder index.
+  */
+  int set_folder( int idx);
 };
 
 

xtt/lib/glow/src/glow_growgroup.cpp

@@ -62,7 +62,7 @@ void GrowGroup::copy_from( const GrowGroup& n)
   nc = new GlowNodeGroup( (GlowNodeGroup &)*n.nc);
 
   if ( ctx->userdata_copy_callback)
-    (ctx->userdata_copy_callback)( this, user_data, &user_data);
+    (ctx->userdata_copy_callback)( this, user_data, &user_data, glow_eUserdataCbType_Node);
 }
 
 void GrowGroup::ungroup()

xtt/lib/glow/src/glow_grownode.cpp

@@ -83,7 +83,7 @@ void GrowNode::copy_from( const GrowNode& n)
   }
 
   if ( ctx->userdata_copy_callback)
-    (ctx->userdata_copy_callback)( this, user_data, &user_data);
+    (ctx->userdata_copy_callback)( this, user_data, &user_data, glow_eUserdataCbType_Node);
 //  nc = new GlowNodeClass( *nc);
 }
 
@@ -152,7 +152,7 @@ void GrowNode::save( ofstream& fp, glow_eSaveMode mode)
 
   if ( user_data && ctx->userdata_save_callback) {
     fp << int(glow_eSave_GrowNode_userdata_cb) << endl;
-    (ctx->userdata_save_callback)(&fp, this);
+    (ctx->userdata_save_callback)(&fp, this, glow_eUserdataCbType_Node);
   }
 
   fp << int(glow_eSave_End) << endl;
@@ -266,7 +266,7 @@ void GrowNode::open( ifstream& fp)
       case glow_eSave_GrowNode_shadow: fp >> shadow; break;
       case glow_eSave_GrowNode_userdata_cb:
 	if ( ctx->userdata_open_callback)
-	  (ctx->userdata_open_callback)(&fp, this);
+	  (ctx->userdata_open_callback)(&fp, this, glow_eUserdataCbType_Node);
 	break;
       case glow_eSave_End: end_found = 1; break;
       default:

xtt/lib/glow/src/glow_growrect.cpp

@@ -21,7 +21,7 @@ GrowRect::GrowRect( GlowCtx *glow_ctx, char *name, double x, double y,
   original_fill_drawtype(fill_d_type), fill_drawtype(fill_d_type),
   border(display_border),
   dynamic(0), dynamicsize(0), shadow(display_shadow), shadow_width(5), relief(glow_eRelief_Up),
-  shadow_contrast(2), disable_shadow(0)
+  shadow_contrast(2), disable_shadow(0), invisible(0)
 { 
   strcpy( n_name, name);
   pzero.nav_zoom();
@@ -262,6 +262,7 @@ void GrowRect::save( ofstream& fp, glow_eSaveMode mode)
   fp << int(glow_eSave_GrowRect_shadow_width) << FSPACE << shadow_width << endl;
   fp << int(glow_eSave_GrowRect_shadow_contrast) << FSPACE << shadow_contrast << endl;
   fp << int(glow_eSave_GrowRect_relief) << FSPACE << int(relief) << endl;
+  fp << int(glow_eSave_GrowRect_invisible) << FSPACE << invisible << endl;
   fp << int(glow_eSave_GrowRect_disable_shadow) << FSPACE << disable_shadow << endl;
   fp << int(glow_eSave_GrowRect_dynamicsize) << FSPACE << dynamicsize << endl;
   fp << int(glow_eSave_GrowRect_dynamic) << endl;
@@ -317,6 +318,7 @@ void GrowRect::open( ifstream& fp)
       case glow_eSave_GrowRect_shadow: fp >> shadow; break;
       case glow_eSave_GrowRect_relief: fp >> tmp; relief = (glow_eRelief)tmp; break;
       case glow_eSave_GrowRect_disable_shadow: fp >> disable_shadow; break;
+      case glow_eSave_GrowRect_invisible: fp >> invisible; break;
       case glow_eSave_GrowRect_dynamicsize: fp >> dynamicsize; break;
       case glow_eSave_GrowRect_dynamic:
         fp.getline( dummy, sizeof(dummy));
@@ -692,6 +694,8 @@ void GrowRect::set_rotation( double angel,
 
 void GrowRect::draw( GlowTransform *t, int highlight, int hot, void *node, void *colornode)
 {
+  if ( invisible && !highlight)
+    return;
   if ( !(display_level & ctx->display_level))
     return;
   int idx;
@@ -860,6 +864,8 @@ void GrowRect::erase( GlowTransform *t, int hot, void *node)
 
 void GrowRect::nav_draw( GlowTransform *t, int highlight, void *node, void *colornode)
 {
+  if ( invisible && !highlight)
+    return;
   if ( !(display_level & ctx->display_level))
     return;
   glow_eDrawType drawtype;

xtt/lib/glow/src/glow_growrect.h

@@ -277,6 +277,7 @@ class GrowRect : public GlowRect {
   glow_eRelief 	relief;		//!< Type of relief.
   int 		shadow_contrast; //!< Shadow contrast.
   int		disable_shadow;	//!< Disable shadow, even if parent node has shadow.
+  int		invisible;	//!< Invisible if not highlighted.
 
   //! Set user data.
   /*!

xtt/lib/glow/src/glow_growslider.cpp

@@ -37,7 +37,7 @@ void GrowSlider::copy_from( const GrowSlider& n)
     memcpy( dynamic, n.nc->dynamic, n.dynamicsize);
   }
   if ( ctx->userdata_copy_callback)
-    (ctx->userdata_copy_callback)( this, user_data, &user_data);
+    (ctx->userdata_copy_callback)( this, user_data, &user_data, glow_eUserdataCbType_Node);
 //  nc = new GlowNodeClass( *nc);
 }
 

xtt/lib/glow/src/glow_growtable.cpp

@@ -89,7 +89,7 @@ void GrowTable::save( ofstream& fp, glow_eSaveMode mode)
   GrowRect::save( fp, mode);
   if ( user_data && ctx->userdata_save_callback) {
     fp << int(glow_eSave_GrowTable_userdata_cb) << endl;
-    (ctx->userdata_save_callback)(&fp, this);
+    (ctx->userdata_save_callback)(&fp, this, glow_eUserdataCbType_Node);
   }
   fp << int(glow_eSave_End) << endl;
 }
@@ -156,7 +156,7 @@ void GrowTable::open( ifstream& fp)
         break;
       case glow_eSave_GrowTable_userdata_cb:
 	if ( ctx->userdata_open_callback)
-	  (ctx->userdata_open_callback)(&fp, this);
+	  (ctx->userdata_open_callback)(&fp, this, glow_eUserdataCbType_Node);
 	break;
       case glow_eSave_End: end_found = 1; break;
       default:

xtt/lib/glow/src/glow_growtrend.cpp

@@ -149,7 +149,7 @@ void GrowTrend::save( ofstream& fp, glow_eSaveMode mode)
   fp << int(glow_eSave_GrowTrend_scan_time) << FSPACE << scan_time << endl;
   if ( user_data && ctx->userdata_save_callback) {
     fp << int(glow_eSave_GrowTrend_userdata_cb) << endl;
-    (ctx->userdata_save_callback)(&fp, this);
+    (ctx->userdata_save_callback)(&fp, this, glow_eUserdataCbType_Node);
   }
   fp << int(glow_eSave_End) << endl;
 }
@@ -238,7 +238,7 @@ void GrowTrend::open( ifstream& fp)
         break;
       case glow_eSave_GrowTrend_userdata_cb:
 	if ( ctx->userdata_open_callback)
-	  (ctx->userdata_open_callback)(&fp, this);
+	  (ctx->userdata_open_callback)(&fp, this, glow_eUserdataCbType_Node);
 	break;
       case glow_eSave_End: end_found = 1; break;
       default:

xtt/lib/glow/src/glow_growwindow.cpp

@@ -63,7 +63,7 @@ void GrowWindow::save( ofstream& fp, glow_eSaveMode mode)
   GrowRect::save( fp, mode);
   if ( user_data && ctx->userdata_save_callback) {
     fp << int(glow_eSave_GrowWindow_userdata_cb) << endl;
-    (ctx->userdata_save_callback)(&fp, this);
+    (ctx->userdata_save_callback)(&fp, this, glow_eUserdataCbType_Node);
   }
   fp << int(glow_eSave_End) << endl;
 }
@@ -93,7 +93,7 @@ void GrowWindow::open( ifstream& fp)
         break;
       case glow_eSave_GrowWindow_userdata_cb:
 	if ( ctx->userdata_open_callback)
-	  (ctx->userdata_open_callback)(&fp, this);
+	  (ctx->userdata_open_callback)(&fp, this, glow_eUserdataCbType_Node);
 	break;
       case glow_eSave_End: end_found = 1; break;
       default:

xtt/lib/glow/src/glow_nodeclass.cpp

@@ -44,6 +44,11 @@ GlowNodeClass::GlowNodeClass( const GlowNodeClass& nc)
   }
 }
 
+GlowNodeClass::~GlowNodeClass()
+{
+  ctx->object_deleted( this);
+}
+
 void GlowNodeClass::print( GlowPoint *pos, void *node)
 {
   int		i;
@@ -120,6 +125,10 @@ void GlowNodeClass::save( ofstream& fp, glow_eSaveMode mode)
   fp << int(glow_eSave_NodeClass_x0) << FSPACE << x0 << endl;
   fp << int(glow_eSave_NodeClass_x1) << FSPACE << x1 << endl;
   fp << int(glow_eSave_NodeClass_input_focus_mark) << FSPACE << int(input_focus_mark) << endl;
+  if ( user_data && ctx->userdata_save_callback) {
+    fp << int(glow_eSave_NodeClass_userdata_cb) << endl;
+    (ctx->userdata_save_callback)(&fp, this, glow_eUserdataCbType_NodeClass);
+  }
   fp <<	int(glow_eSave_End) << endl;
 }
 
@@ -225,6 +234,10 @@ void GlowNodeClass::open( ifstream& fp)
         fp >> tmp;
 	input_focus_mark = (glow_eInputFocusMark)tmp;
         break;
+      case glow_eSave_NodeClass_userdata_cb:
+	if ( ctx->userdata_open_callback)
+	  (ctx->userdata_open_callback)(&fp, this, glow_eUserdataCbType_NodeClass);
+	break;
       case glow_eSave_End: end_found = 1; break;
       default:
         cout << "GlowNodeClass:open syntax error" << endl;

xtt/lib/glow/src/glow_nodeclass.h

@@ -41,6 +41,9 @@ class GlowNodeClass : public GlowArrayElem {
   */
   GlowNodeClass( const GlowNodeClass& nc);
 
+  // Destructor.
+  ~GlowNodeClass();
+
   //! Insert a new element in the nodeclass.
   /*!
     \param element	New element to insert.
@@ -359,6 +362,24 @@ class GlowNodeClass : public GlowArrayElem {
   int get_annotation_info( void *node, int num, int *t_size, glow_eDrawType *t_drawtype,
 			   glow_eDrawType *t_color);
 
+  //! Set user data.
+  /*!
+    \param data User data.
+  */
+  void set_user_data( void *data) { user_data = data;};
+
+  //! Get user data.
+  /*!
+    \param data User data.
+  */
+  void get_user_data( void **data) { *data = user_data;};
+
+  //! Get grow context.
+  /*!
+    \return The context.
+  */
+  void *get_ctx() { return this->ctx;};
+
   GlowCtx	*ctx;		//!< Glow context.
   GlowArray 	a;		//!< Array of nodeclass elements.
   char		nc_name[32];	//!< Name of nodeclass.
@@ -394,6 +415,7 @@ class GlowNodeClass : public GlowArrayElem {
   int		saved;		//!< The nodeclass doesn't have any unsaved changes.
   glow_eCycle 	cycle;		//!< Cycle, i.e. if dynamics is executed at fast or slow scantime.
   glow_eInputFocusMark input_focus_mark; //!< How input focus in marked.
+  void		*user_data;	//!< User data.
 };
 
 /*@}*/