/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* camel-seekable-substream.h : stream */ /* * * Author : * Bertrand Guiheneuf * * Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ #ifndef CAMEL_SEEKABLE_SUBSTREAM_H #define CAMEL_SEEKABLE_SUBSTREAM_H 1 #ifdef __cplusplus extern "C" { #pragma } #endif /* __cplusplus }*/ #include #include "camel-types.h" #include "camel-seekable-stream.h" #define CAMEL_SEEKABLE_SUBSTREAM_TYPE (camel_seekable_substream_get_type ()) #define CAMEL_SEEKABLE_SUBSTREAM(obj) (GTK_CHECK_CAST((obj), CAMEL_SEEKABLE_SUBSTREAM_TYPE, CamelSeekableSubstream)) #define CAMEL_SEEKABLE_SUBSTREAM_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), CAMEL_SEEKABLE_SUBSTREAM_TYPE, CamelSeekableSubstreamClass)) #define CAMEL_IS_SEEKABLE_SUBSTREAM(o) (GTK_CHECK_TYPE((o), CAMEL_SEEKABLE_SUBSTREAM_TYPE)) struct _CamelSeekableSubstream { CamelSeekableStream parent_object; /* --**-- Private fields --**-- */ CamelSeekableStream *parent_stream; /* the stream this substream uses */ guint32 cur_pos; /* current postion in the stream */ guint32 inf_bound; /* first valid position */ gint64 sup_bound; /* first invalid position */ gboolean open; gboolean eos; }; typedef struct { CamelSeekableStreamClass parent_class; /* Virtual methods */ void (*init_with_seekable_stream_and_bounds) (CamelSeekableSubstream *seekable_substream, CamelSeekableStream *parent_stream, guint32 inf_bound, gint64 sup_bound); } CamelSeekableSubstreamClass; /* Standard Gtk function */ GtkType camel_seekable_substream_get_type (void); /* public methods */ /* obtain a new seekable substream */ CamelStream * camel_seekable_substream_new_with_seekable_stream_and_bounds (CamelSeekableStream *parent_stream, guint32 inf_bound, gint64 sup_bound); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* CAMEL_SEEKABLE_SUBSTREAM_H */