X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fgtkmathview-bonobo%2Fsrc%2Fcontrol-data.c;h=d97d0fd2f77700338a039c1f33b8e4b2f12b2952;hb=4167cea65ca58897d1a3dbb81ff95de5074700cc;hp=8668a3867b87f79aca1bf72557d94aa71c59457c;hpb=2a9857d047063f36dfd15b0e07902bde1dd3d466;p=helm.git

diff --git a/helm/gtkmathview-bonobo/src/control-data.c b/helm/gtkmathview-bonobo/src/control-data.c
index 8668a3867..d97d0fd2f 100644
--- a/helm/gtkmathview-bonobo/src/control-data.c
+++ b/helm/gtkmathview-bonobo/src/control-data.c
@@ -28,14 +28,19 @@
 #include "control-data.h"
 
 GtkMathViewControlData*
-gtk_math_view_control_data_new(GtkMathView *math_view)
+gtk_math_view_control_data_new(BonoboControl* control, GtkMathView *math_view)
 {
   GtkMathViewControlData *cd = g_new(GtkMathViewControlData,1);
+  cd->control = control; /* we don't ref the control this is a weak pointer */
   cd->math_view = math_view;
+  gtk_widget_ref(GTK_WIDGET(math_view));
+  cd->item_factory = NULL;
+  cd->semantic_selection = FALSE;
   cd->first_selected = NULL;
   cd->root_selected = NULL;
   cd->id_ns_uri = gdome_str_mkref("http://www.cs.unibo.it/helm");
   cd->id_name = gdome_str_mkref("xref");
+  cd->x = cd->y = 0;
   return cd;
 }
 
@@ -43,8 +48,14 @@ void
 gtk_math_view_control_data_destroy(GtkMathViewControlData* cd)
 {
   GdomeException exc = 0;
-  //gtk_object_unref(cd->math_view);
+  cd->control = NULL; /* don't unref the control, see above */
+  gtk_widget_unref(GTK_WIDGET(cd->math_view));
   cd->math_view = NULL;
+  if (cd->item_factory != NULL)
+    {
+      gtk_object_unref(cd->item_factory);
+      cd->item_factory = NULL;
+    }
   if (cd->first_selected != NULL)
     {
       gdome_el_unref(cd->first_selected, &exc);
@@ -99,3 +110,29 @@ gtk_math_view_control_data_set_id_name(GtkMathViewControlData* cd, const gchar*
   if (cd->id_name != NULL) gdome_str_unref(cd->id_name);
   cd->id_name = (name != NULL) ? gdome_str_mkref_dup(name) : NULL;
 }
+
+void
+gtk_math_view_control_data_set_root_selected(GtkMathViewControlData* cd, GdomeElement* elem)
+{
+  g_return_if_fail(cd != NULL);
+  GdomeException exc = 0;
+
+  gtk_math_view_freeze(cd->math_view);
+
+  if (cd->root_selected != NULL)
+    {
+      gtk_math_view_unselect(cd->math_view, cd->root_selected);
+      gdome_el_unref(cd->root_selected, &exc);
+      g_assert(exc == 0);
+    }
+
+  cd->root_selected = elem;
+  if (cd->root_selected != NULL)
+    {
+      gdome_el_ref(cd->root_selected, &exc);
+      g_assert(exc == 0);
+      gtk_math_view_select(cd->math_view, cd->root_selected);
+    }
+
+  gtk_math_view_thaw(cd->math_view);
+}