From: pmasoudi <??>
Date: Wed, 16 Jul 2003 12:48:25 +0000 (+0000)
Subject: added persit-file-implementation.
X-Git-Tag: LucaOK~75
X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=commitdiff_plain;h=70f855932359e26ca89deb11c22f9c9d26154827

added persit-file-implementation.
---

diff --git a/helm/gtkmathview-bonobo/src/persist-file.c b/helm/gtkmathview-bonobo/src/persist-file.c
new file mode 100644
index 000000000..eceb4e77a
--- /dev/null
+++ b/helm/gtkmathview-bonobo/src/persist-file.c
@@ -0,0 +1,152 @@
+#include <bonobo.h>
+#include <gtk_math_view.h>
+#include <glib.h>
+
+
+static BonoboObjectClass *gtk_math_view_persist_file_parent_class;
+
+static void load_implementation(PortableServer_Servant servant,const CORBA_char *path,Corba_Environment *ev); 
+
+static void finalize(GObject *object)
+{
+	GtkMathViewPersistFile *file = GTK_MATH_VIEW_PERSIST_FILE(object);
+
+	if(file->math_view){
+		g_object_unref(file->html);
+		file->math_view = NULL;
+	}
+
+	G_OBJECT_CLASS(gtk_math_view_persist_file_parent_class)->finalize (object);
+}
+
+static Bonobo_Persist_ContentTypeList *
+get_content_types(BonoboPersist *persist,CORBA_Environment *ev)
+{
+	return bonobo_persist_generate_content_types();
+}
+
+static void 
+gtk_math_view_persist_file_class_init(GtkMathViewFileClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS(klass);
+	BonoboPersistClass *persist_class = BONOBO_PERSIST_CLASS(klass);
+	POA_Bonobo_PersistFile__epv *epv = &klass->epv;
+
+	gtk_math_view_persist_file_parent_class = g_type_class_peek_parent(klass);
+
+	epv->load = load_implementation;
+	epv->save = save_implementation;
+
+	object_class->finalize = finalize;
+	persist_class->get_content_types = get_content_types;
+}
+
+GType 
+gtk_math_view_persist_file_get_type(void)
+{
+	static GType type = 0;
+	if(!type){
+		GTypeInfo info = {
+			sizeof(GtkMathViewPresistFileClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) gtk_math_view_persist_file_class_init,
+			NULL,  /* class finalize */
+			NULL,  /* class_data */
+			sizeof(GtkMathViewPresistFile),
+			0,   /* n_preallocs */
+			(GInstanceInitFunc) NULL
+		};
+
+		type = bonobo_type_unique(
+				BONOBO_TYPE_PERSIST,
+				POA_Bonobo_PersistFile__init,POA_Bonobo_PersistFile__fini,
+				G_STRUCT_OFFSET(GtkMathViewPresistFileClass, epv),
+				&info,"GtkMathViewPresistFile");
+	}
+	return type;
+}
+
+BonoboObject *
+gtk_math_view_persist_file_new(GtkMathView *math_view)
+{
+	BonoboObject *file;
+
+	file = g_object_new(gtk_math_view_persist_file_get_type(),NULL);
+	bonobo_persist_construct(BONOBO_PRESIST(file), CONTROL_FACTORY_ID);
+
+	g_object_ref(math_view);
+	GTK_MATH_VIEW_PRESIST_FILE (file) = math_view;
+
+	return file;
+}
+
+static void
+load_implementation(PortableServer_Servant servant,const CORBA_char *path,CORBA_Environment *ev)
+{
+	GtkMathViewPersistFile *file = GTK_MATH_VIEW_
+}
+
+Dom::Document *
+gtk_math_view_bonobo_data_construct(Dom::Document *data_file)
+{
+	BonoboObject *retval;
+	BonoboPersistFile *file;
+
+	file = bonobo_persist_file_new(gtk_math_view_load_from_file,
+			gtk_math_view_save_to_file,
+			"OAFIID:GNOME_MATH_VIEW_FILE_Control",
+			data_file);
+
+	if(file == NULL)
+	{
+		bonobo_object_unref(BONOBO_OBJECT (data_file));
+		return NULL;
+	}
+
+	bonobo_object_add_interface(BONOBO_OBJECT(data_file),
+					BONOBO_OBJECT(file));
+	return data_file;
+}
+
+
+}
+
+
+static gint
+gtk_math_view_bonobo_load_from_file(BonoboPresistFile 	*pf,
+		const CORBA_char 	*filename,
+		CORBA_Environment 	*ev,
+		void  			*closure)
+{
+	Bonobo_PersistStream ps = closure;
+	BonoboStream *stream;
+
+	g_return_val_if_fail (data != NULL, -1);
+	//FIXME: controllo del tipo di dato in input
+	
+	stram = bonobo_stream_open(
+			BONOBO_IO_DRIVER_FS,
+			filename,Bonobo_STORAGE_READ,
+			0);
+	if(!stream)
+		return 0;
+
+	//FIXME:I have to extract content type from file
+		
+	
+	Bonobo_PersistStream_load(ps, type, ev);
+	
+	return 1;  //return 1 on success
+}
+
+static gint 
+gtk_math_view_bonobo_save_to_file(BonoboPresistFile		*pf,
+		const CORBA_char	*filename,
+		CORBA_Environment	*ev,
+		void 			*closure)
+{
+	return 1;   //return 1 on success
+}
+
+
diff --git a/helm/gtkmathview-bonobo/src/persist-file.h b/helm/gtkmathview-bonobo/src/persist-file.h
new file mode 100644
index 000000000..feef4598b
--- /dev/null
+++ b/helm/gtkmathview-bonobo/src/persist-file.h
@@ -0,0 +1,42 @@
+#ifdef _GTK_MATH_VIEW_PERSIST_FILE_H_
+#define _GTK_MATH_VIEW_PERSIST_FILE_H_
+
+#include <bonobo/bonobo-persist.h>
+#include <gtkmathview.h>
+
+G_BEGIN_DECLS
+
+struct _GtkMathViewPersistFile;
+typedef struct _GtkMathViewPersistFile GtkMathViewPersistFile;
+typedef struct _GtkMathViewPersistFilePrivate GtkMathViewPersistFilePrivate;
+
+#define GTK_MATH_VIEW_TYPE_PERSIST_FILE		(gtk_math_view_persist_file_get_type())
+
+#define GTK_MATH_VIEW_PERSIST_FILE(o)		(G_TYPE_CHECK_INSTANCE_CAST((o), GTK_MATH_VIEW_TYPE_PERSIST_FILE, \
+			GtkMathViewPersistFile))
+
+#define GTK_HTML_IS_PERSIST_FILE_CLASS(k)	(G_TYPE_CHECK_CLASS_CAST((k),\
+						GTK_MATH_VIEW_TYPE_PERSIST_FILE,\
+						GtkMathViewPersistFileClass))
+#define GTK_MATH_VIEW_IS_PERSIST_FILE(o)	(G_TYPE_CHECK_INSTANCE_TYPE((o),\
+						GTK_MATH_VIEW_TYPE_PERSIST_FILE))
+#define GTK_MATH_VIEW_IS_PERSIST_FILE_CLASS(k)	(G_TYPE_CHECK_CLASS_TYPE ((k),\
+						GTK_MATH_VIEW_TYPE_PERSIST_FILE))
+
+struct _GtkMathViewPersistFile{
+	BonoboPersist parent;
+	GtkMathView	*math_view;
+};
+
+typedef struct {
+	BonoboPersistClass	parent_class;
+
+	POA_Bonobo_PersistFile__epv epv;
+}GtkMathViewPersistFileClass;
+
+GType		gtk_math_view_persist_file_get_type(void);
+BonoboObject	*gtk_math_view_persist_file_new(GtkMathView *math_view);
+
+G_END_DECLS
+
+#endif