helm/gtkmathview-bonobo/src/persist-file.c

   1 #include <bonobo.h>
   2 #include <gtkmathview.h>
   3 #include <glib.h>
   4 #include "persist-file.h"
   5 #include "control-factory.h"
   6
   7 static BonoboObjectClass *gtk_math_view_persist_file_parent_class;
   8
   9 static void load_implementation(PortableServer_Servant servant,const gchar *path,
  10                 CORBA_Environment *ev);
  11
  12 static void save_implementation(PortableServer_Servant servant,const gchar *path,
  13                 CORBA_Environment *ev);
  14
  15 static void finalize(GObject *object)
  16 {
  17         GtkMathViewPersistFile *file = GTK_MATH_VIEW_PERSIST_FILE(object);
  18
  19         if(file->math_view){
  20                 g_object_unref(file->math_view);
  21                 file->math_view = NULL;
  22         }
  23
  24         G_OBJECT_CLASS(gtk_math_view_persist_file_parent_class)->finalize (object);
  25 }
  26
  27 static Bonobo_Persist_ContentTypeList *
  28 get_content_types(BonoboPersist *persist,CORBA_Environment *ev)
  29 {
  30         //FIXME: il tipo di dato non e` noto
  31         return bonobo_persist_generate_content_types(0);
  32 }
  33
  34
  35 static void
  36 gtk_math_view_persist_file_class_init(GtkMathViewPersistFileClass *klass)
  37 {
  38         GObjectClass *object_class = G_OBJECT_CLASS(klass);
  39         BonoboPersistClass *persist_class = BONOBO_PERSIST_CLASS(klass);
  40         POA_Bonobo_PersistFile__epv *epv = &klass->epv;
  41
  42         printf("persist file class init\n");
  43         gtk_math_view_persist_file_parent_class = g_type_class_peek_parent(klass);
  44
  45         epv->load = load_implementation;
  46         epv->save = save_implementation;
  47
  48         object_class->finalize = finalize;
  49         persist_class->get_content_types = get_content_types;
  50 }
  51
  52 GType
  53 gtk_math_view_persist_file_get_type(void)
  54 {
  55         static GType type = 0;
  56         printf("persist file get type\n");
  57         if(!type){
  58                 GTypeInfo info = {
  59                         sizeof(GtkMathViewPersistFileClass),
  60                         (GBaseInitFunc) NULL,
  61                         (GBaseFinalizeFunc) NULL,
  62                         (GClassInitFunc) gtk_math_view_persist_file_class_init,
  63                         NULL,  /* class finalize */
  64                         NULL,  /* class_data */
  65                         sizeof(GtkMathViewPersistFile),
  66                         0,   /* n_preallocs */
  67                         (GInstanceInitFunc) NULL
  68                 };
  69
  70                 type = bonobo_type_unique(
  71                                 BONOBO_TYPE_PERSIST,
  72                                 POA_Bonobo_PersistFile__init,POA_Bonobo_PersistFile__fini,
  73                                 G_STRUCT_OFFSET(GtkMathViewPersistFileClass, epv),
  74                                 &info,"GtkMathViewPresistFile");
  75         }
  76         return type;
  77 }
  78
  79 BonoboObject *
  80 gtk_math_view_persist_file_new(GtkMathView *math_view)
  81 {
  82         BonoboObject *file;
  83
  84         printf("persist file new\n");
  85         file = g_object_new(gtk_math_view_persist_file_get_type(),NULL);
  86         bonobo_persist_construct(BONOBO_PERSIST(file),CONTROL_FACTORY_ID);
  87
  88         g_object_ref(math_view);
  89         GTK_MATH_VIEW_PERSIST_FILE(file)->math_view = math_view;
  90
  91         return file;
  92 }
  93
  94 static void
  95 load_implementation(PortableServer_Servant servant,const gchar *path,CORBA_Environment *ev)
  96 {
  97         gboolean result;
  98         GtkMathViewPersistFile* file = GTK_MATH_VIEW_PERSIST_FILE(bonobo_object_from_servant(servant));
  99         //fd = open(path, O_RDONLY);
 100
 101         result = gtk_math_view_load_uri(file->math_view,path);
 102         if(!result)
 103         {
 104                 CORBA_exception_set(ev,CORBA_USER_EXCEPTION,ex_Bonobo_Persist_WrongDataType,NULL);
 105         }
 106         return ;
 107 }
 108
 109 static void
 110 save_implementation(PortableServer_Servant servant,const gchar *path,CORBA_Environment *ev)
 111 {
 112         bonobo_exception_set(ev,"save_exception");
 113         bonobo_exception_add_handler_str("save_exception",
 114                                           "Save option is not valid");
 115         return;
 116 }