Diagram *
diagram_load(const char *filename, DiaImportFilter *ifilter)
{
Diagram *diagram = NULL;
GList *diagrams;
gboolean was_default = FALSE;
for (diagrams = open_diagrams; diagrams != NULL; diagrams = g_list_next(diagrams)) {
Diagram *old_diagram = (Diagram*)diagrams->data;
if (old_diagram->is_default) {
diagram = old_diagram;
was_default = TRUE;
break;
}
}
/* TODO: Make diagram not be initialized twice */
if (diagram == NULL) {
diagram = new_diagram(filename);
}
if (diagram == NULL) return NULL;
if ( !diagram_init(diagram, filename)
|| !diagram_load_into (diagram, filename, ifilter)) {
if (!was_default) /* don't kill the default diagram on import failure */
diagram_destroy(diagram);
diagram = NULL;
} else {
/* not modifying 'diagram->unsaved' the state depends on the import filter used */
diagram_set_modified(diagram, FALSE);
if (app_is_interactive()) {
recent_file_history_add(filename);
if (was_default) /* replacing it is like first remove than add */
dia_diagram_remove(diagram);
dia_diagram_add(diagram);
}
}
if (diagram != NULL && was_default && app_is_interactive()) {
diagram_update_for_filename(diagram);
diagram->is_default = FALSE;
if ( g_slist_length(diagram->displays) == 1 )
display_set_active (diagram->displays->data);
}
return diagram;
}
static void
dia_dnd_file_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *data,
guint info,
guint time,
DDisplay *ddisp)
{
#if GTK_CHECK_VERSION(2,22,0)
switch (gdk_drag_context_get_selected_action(context))
#else
switch (context->action)
#endif
{
case GDK_ACTION_DEFAULT:
case GDK_ACTION_COPY:
case GDK_ACTION_MOVE:
case GDK_ACTION_LINK:
case GDK_ACTION_ASK:
default:
{
Diagram *diagram = NULL;
gchar *sPath = NULL, *pFrom, *pTo;
pFrom = strstr((gchar *) gtk_selection_data_get_data(data), "file:");
while (pFrom) {
GError *error = NULL;
pTo = pFrom;
while (*pTo != 0 && *pTo != 0xd && *pTo != 0xa) pTo ++;
sPath = g_strndup(pFrom, pTo - pFrom);
/* format changed with Gtk+2.0, use conversion */
pFrom = g_filename_from_uri (sPath, NULL, &error);
if (!ddisp)
diagram = diagram_load (pFrom, NULL);
else {
diagram = ddisp->diagram;
if (!diagram_load_into (diagram, pFrom, NULL)) {
/* the import filter is supposed to show the error message */
gtk_drag_finish (context, TRUE, FALSE, time);
break;
}
}
g_free (pFrom);
g_free(sPath);
if (diagram != NULL) {
diagram_update_extents(diagram);
layer_dialog_set_diagram(diagram);
if (diagram->displays == NULL) {
new_display(diagram);
}
}
pFrom = strstr(pTo, "file:");
} /* while */
gtk_drag_finish (context, TRUE, FALSE, time);
}
break;
}
return;
}
