+++ /dev/null
-/* This file is part of GtkMathView-Bonobo, a Bonobo wrapper for GtkMathView.
- * Copyright (C) 2003 Luca Padovani <lpadovan@cs.unibo.it>
- * Pouria Masoudi <pmasoudi@cs.unibo.it>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * For more information, please visit the project's home page
- * http://helm.cs.unibo.it/gtkmathview-bonobo
- * or send an email to <lpadovan@cs.unibo.it>
- */
-
-#include <config.h>
-
-#include <bonobo.h>
-#include <gtkmathview.h>
-
-#include "persist-stream.h"
-#include "control-factory.h"
-
-#define DEBUG0
-
-static BonoboObjectClass *gtk_math_view_persist_stream_parent_class;
-
-static void load_implementation(PortableServer_Servant servant,
- const Bonobo_Stream stream,
- const CORBA_char *type,
- CORBA_Environment *ev);
-
-static void save_implementation(PortableServer_Servant servant,
- const Bonobo_Stream stream,
- const CORBA_char *type,
- CORBA_Environment *ev);
-
-static void finalize(GObject *object)
-{
- GtkMathViewPersistStream *stream = GTK_MATH_VIEW_PERSIST_STREAM(object);
-
- if (stream->math_view != NULL)
- {
- g_object_unref(stream->math_view);
- stream->math_view = NULL;
- }
-
- G_OBJECT_CLASS(gtk_math_view_persist_stream_parent_class)->finalize(object);
-}
-
-static Bonobo_Persist_ContentTypeList *
-get_content_types(BonoboPersist *persist,CORBA_Environment *ev)
-{
- return bonobo_persist_generate_content_types(2, "application/mathml+xml", "text/mathml");
-}
-
-static void
-gtk_math_view_persist_stream_class_init(GtkMathViewPersistStreamClass *klass)
-{
- GObjectClass *object_class = G_OBJECT_CLASS(klass);
- BonoboPersistClass *persist_class = BONOBO_PERSIST_CLASS(klass);
- POA_Bonobo_PersistStream__epv *epv = &klass->epv;
-
-#ifdef DEBUG
- printf("persist stream class init\n");
-#endif
- gtk_math_view_persist_stream_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_stream_get_type(void)
-{
- static GType type = 0;
-#ifdef DEBUG
- printf("persist stream get type\n");
-#endif
- if (!type)
- {
- GTypeInfo info =
- {
- sizeof(GtkMathViewPersistStreamClass),
- (GBaseInitFunc) NULL,
- (GBaseFinalizeFunc) NULL,
- (GClassInitFunc) gtk_math_view_persist_stream_class_init,
- NULL, /*class finalize */
- NULL, /*class data */
- sizeof(GtkMathViewPersistStream),
- 0, /* n_preallocs */
- (GInstanceInitFunc) NULL
- };
-
- type = bonobo_type_unique(BONOBO_TYPE_PERSIST,
- POA_Bonobo_PersistStream__init,POA_Bonobo_PersistStream__fini,
- G_STRUCT_OFFSET(GtkMathViewPersistStreamClass,epv),
- &info,"GtkMathViewPersistStream");
- }
-
- return type;
-}
-
-BonoboObject *
-gtk_math_view_persist_stream_new(GtkMathView *math_view)
-{
- BonoboObject *stream;
-
-#ifdef DEBUG
- printf("persist stream new\n");
-#endif
- stream = g_object_new(gtk_math_view_persist_stream_get_type(),NULL);
- bonobo_persist_construct(BONOBO_PERSIST(stream),CONTROL_FACTORY_ID);
-
- g_object_ref(math_view);
- GTK_MATH_VIEW_PERSIST_STREAM(stream)->math_view = math_view;
-
- return stream;
-}
-
-static FILE*
-create_tmp_file(GtkMathViewPersistStream *persist)
-{
- FILE *tmpfile;
- int fd;
-
- persist->tmp_path_name = g_strconcat(g_get_tmp_dir(), "/gmvXXXXXX", NULL);
- if ((fd = mkstemp(persist->tmp_path_name)) < 0)
- {
- g_free(persist->tmp_path_name),
- persist->tmp_path_name = NULL;
- return NULL;
- }
-
- tmpfile = fdopen(fd, "w");
- if(!tmpfile)
- {
- close(fd);
- return NULL;
- }
-
- return tmpfile;
-}
-
-
-static void
-load_implementation(PortableServer_Servant servant,
- Bonobo_PersistStream stream,
- const CORBA_char *type,
- CORBA_Environment *ev)
-{
- GtkMathViewPersistStream *persist = GTK_MATH_VIEW_PERSIST_STREAM (bonobo_object_from_servant (servant));
- Bonobo_Stream_iobuf *buffer;
- GtkMathViewPersistStream *handle;
- CORBA_long len_read;
- gboolean result;
- FILE *tmpfile;
-
-#ifdef DEBUG
- printf("persist stream loading\n");
-#endif
-
- if (strcmp (type, "application/mathml+xml") != 0)
- {
- CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
- ex_Bonobo_Persist_WrongDataType, NULL);
- return;
- }
-
- tmpfile = create_tmp_file(persist);
- do
- {
- Bonobo_Stream_read (stream, 4096, &buffer, ev);
- if (ev->_major != CORBA_NO_EXCEPTION)
- goto clean;
-
- len_read = buffer->_length;
-
- if (buffer->_buffer && len_read)
- if (fwrite(buffer->_buffer, 1, len_read, tmpfile) != len_read)
- {
- CORBA_free (buffer);
- goto clean;
- }
-
- CORBA_free (buffer);
- } while (len_read > 0);
-
- fclose(tmpfile);
-
- result = gtk_math_view_load_uri(persist->math_view,persist->tmp_path_name);
- if(!result)
- {
- CORBA_exception_set(ev,CORBA_USER_EXCEPTION,ex_Bonobo_Persist_WrongDataType,NULL);
- }
- return ;
-
- clean:
- fclose (tmpfile);
- return;
-}
-
-static void
-save_implementation(PortableServer_Servant servant,const Bonobo_Stream stream,const CORBA_char *type,CORBA_Environment *ev)
-{
- bonobo_exception_set(ev,"save_exception");
- bonobo_exception_add_handler_str("save_exception",
- "Save option is not valid");
- return;
-}
projects / helm.git / blobdiff