Glow and flow widgets destructor fix

xtt/lib/flow/gtk/flow_browwidget_gtk.cpp

@@ -351,12 +351,11 @@ static void browwidgetgtk_destroy( GtkObject *object)
   BrowWidgetGtk *brow = (BrowWidgetGtk *)object;
 
   if ( !brow->destroyed) {
+    brow->destroyed = 1;
     if ( brow->scroll_timerid)
       g_source_remove( brow->scroll_timerid);
     if ( !brow->is_navigator)
       delete (FlowDrawGtk *)brow->draw_ctx;
-
-    brow->destroyed = 1;
   }
 
   GTK_OBJECT_CLASS( browwidgetgtk_parent_class)->destroy( object);

xtt/lib/flow/gtk/flow_draw_gtk.cpp

@@ -312,10 +312,15 @@ static GdkColor flow_allocate_color( FlowDrawGtk *draw_ctx, const char *named_co
 
 FlowDrawGtk::~FlowDrawGtk()
 {
+  closing_down = 1;
+
   basectx->set_nodraw();
   delete basectx;
   draw_free_gc( this);
   gdk_colormap_free_colors( colormap, color_vect, color_vect_cnt);
+
+  if ( timer_id)
+    g_source_remove( timer_id);
 }
 
 int FlowDrawGtk::create_secondary_ctx( 
@@ -387,7 +392,8 @@ FlowDrawGtk::FlowDrawGtk(
 	flow_eCtxType type) :
     toplevel(x_toplevel), nav_shell(0), 
     nav_toplevel(0), display(0),
-    window(0), nav_window(0), screen(0), timer_id(0), color_vect_cnt(0)
+    window(0), nav_window(0), screen(0), timer_id(0), color_vect_cnt(0),
+    closing_down(0)
 {
 
   memset( gcs, 0, sizeof(gcs));
@@ -449,6 +455,9 @@ int FlowDrawGtk::event_handler( FlowCtx *ctx, GdkEvent event)
   static int	last_press_y = 0;
   int           sts = 1;
 
+  if ( closing_down)
+    return 1;
+
   if ( event.any.window == window || event.type == GDK_KEY_PRESS) {
     switch ( event.type) {
     case GDK_KEY_PRESS : {

xtt/lib/flow/gtk/flow_draw_gtk.h

@@ -50,6 +50,7 @@ class FlowDrawGtk : public FlowDraw {
   guint		timer_id;
   GdkColor	color_vect[20];
   int		color_vect_cnt;
+  int   	closing_down;
 
   FlowDrawGtk( GtkWidget *toplevel, 
 		void **flow_ctx,

xtt/lib/flow/gtk/flow_widget_gtk.cpp

@@ -344,12 +344,11 @@ static void flowwidgetgtk_destroy( GtkObject *object)
   FlowWidgetGtk *flow = (FlowWidgetGtk *)object;
 
   if ( !flow->destroyed) {
+    flow->destroyed = 1;
     if ( flow->scroll_timerid)
       g_source_remove( flow->scroll_timerid);
     if ( !flow->is_navigator)
       delete (FlowDrawGtk *)flow->draw_ctx;
-
-    flow->destroyed = 1;
   }
   GTK_OBJECT_CLASS( flowwidgetgtk_parent_class)->destroy( object);
 }

xtt/lib/glow/gtk/glow_curvewidget_gtk.cpp

@@ -68,6 +68,7 @@ struct _CurveWidgetGtk {
   gint 		scroll_timerid;
   glow_sScroll  scroll_data;
   int           scroll_configure;
+  int		destroyed;
 };
 
 struct _CurveWidgetGtkClass {
@@ -261,8 +262,27 @@ static void curvewidgetgtk_grab_focus( GtkWidget *glow)
   gdk_window_focus( glow->window, GDK_CURRENT_TIME);
 }
 
+static void curvewidgetgtk_destroy( GtkObject *object)
+{
+  CurveWidgetGtk *curvew = (CurveWidgetGtk *)object;
+
+  if ( !curvew->destroyed) {
+    curvew->destroyed = 1;
+    if ( curvew->scroll_timerid)
+      g_source_remove( curvew->scroll_timerid);
+    if ( curvew->is_navigator && curvew->curve_ctx)
+      ((CurveCtx *)curvew->curve_ctx)->no_nav = 1;
+    else
+      delete (GlowDrawGtk *)curvew->draw_ctx;
+  }
+  GTK_OBJECT_CLASS( curvewidgetgtk_parent_class)->destroy( object);
+}
+
 static gboolean curvewidgetgtk_event( GtkWidget *glow, GdkEvent *event)
 {
+  if ( ((CurveWidgetGtk *)glow)->destroyed)
+    return TRUE;
+
   if ( !((CurveWidgetGtk *)glow)->curve_ctx)
     // Navigator not yet created
     return TRUE;
@@ -360,11 +380,15 @@ static void curvewidgetgtk_realize( GtkWidget *widget)
 static void curvewidgetgtk_class_init( CurveWidgetGtkClass *klass)
 {
   GtkWidgetClass *widget_class;
+  GtkObjectClass *object_class;
+
   widget_class = GTK_WIDGET_CLASS( klass);
+  object_class = GTK_OBJECT_CLASS( klass);
   widget_class->realize = curvewidgetgtk_realize;
   widget_class->expose_event = curvewidgetgtk_expose;
   widget_class->event = curvewidgetgtk_event;
   widget_class->grab_focus = curvewidgetgtk_grab_focus;
+  object_class->destroy = curvewidgetgtk_destroy;
 }
 
 static void curvewidgetgtk_init( CurveWidgetGtk *glow)

xtt/lib/glow/gtk/glow_draw_gtk.cpp

@@ -484,7 +484,7 @@ static GdkColor glow_allocate_color( GlowDrawGtk *draw_ctx, int rgb_red,
 
 GlowDrawGtk::~GlowDrawGtk()
 {
-  cancel_event_timer( ctx);
+  closing_down = 1;
 
   ctx->set_nodraw();
   if ( ctx->type() == glow_eCtxType_Grow)
@@ -504,6 +504,9 @@ GlowDrawGtk::~GlowDrawGtk()
     g_object_unref( nav_wind.buffer);
   if ( nav_wind.background_pixmap)
     g_object_unref( nav_wind.background_pixmap);
+
+  if ( timer_id)
+    g_source_remove( timer_id);
 }
 
 int GlowDrawGtk::init_nav( GtkWidget *nav_widget)
@@ -524,7 +527,7 @@ GlowDrawGtk::GlowDrawGtk(
         int (*init_proc)(GtkWidget *w, GlowCtx *ctx, void *client_data),
 	void  *client_data, 
 	glow_eCtxType type) 
-  : ef(0), timer_id(0), click_sensitivity(0), color_vect_cnt(0)
+  : ef(0), timer_id(0), click_sensitivity(0), color_vect_cnt(0), closing_down(0)
 {
   memset( gcs, 0, sizeof(gcs));
   memset( font, 0, sizeof(font));
@@ -580,6 +583,9 @@ int GlowDrawGtk::event_handler( GdkEvent event)
   static int	last_press_y = 0;
   int sts = 1;
 
+  if ( closing_down)
+    return 1;
+
 //  cout << "Event : button_pressed " << button_pressed << " clicked " << 
 //	button_clicked << " c&p " << button_clicked_and_pressed << endl;
 

xtt/lib/glow/gtk/glow_draw_gtk.h

@@ -69,7 +69,6 @@ class GlowDrawGtk : public GlowDraw {
   GdkGC		*gc_erase;
   GdkGC		*gc_inverse;
   GdkGC		*gcs[glow_eDrawType__][DRAW_TYPE_SIZE];
-  // XFontStruct	*font_struct[glow_eDrawFont__][DRAW_FONT_SIZE];
   GdkFont 	*font[glow_eFont__][glow_eDrawFont__][DRAW_FONT_SIZE];
   GdkCursor	*cursors[glow_eDrawCursor__];
   int		ef;
@@ -80,6 +79,7 @@ class GlowDrawGtk : public GlowDraw {
   int		click_sensitivity;
   GdkColor	color_vect[320];
   int		color_vect_cnt;
+  int   	closing_down;
   
   int event_handler( GdkEvent event);
   virtual void enable_event( glow_eEvent event, 

xtt/lib/glow/gtk/glow_growwidget_gtk.cpp

@@ -271,13 +271,13 @@ static void growwidgetgtk_destroy( GtkObject *object)
   GrowWidgetGtk *grow = (GrowWidgetGtk *)object;
 
   if ( !grow->destroyed) {
+    grow->destroyed = 1;
     if ( grow->scroll_timerid)
       g_source_remove( grow->scroll_timerid);
     if ( grow->is_navigator && grow->grow_ctx)
       ((GrowCtx *)grow->grow_ctx)->no_nav = 1;
     else
       delete (GlowDrawGtk *)grow->draw_ctx;
-    grow->destroyed = 1;
   }
   GTK_OBJECT_CLASS( growwidgetgtk_parent_class)->destroy( object);
 }