172 lines
4 KiB
C
172 lines
4 KiB
C
/***************************************************************************
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CUncompress.c
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(c) 2003-2004 Daniel Campos Fernández <danielcampos@netcourrier.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#define __CUNCOMPRESS_C
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#include "CUncompress.h"
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#include "main.h"
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#include <stdio.h>
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#define Check_Driver() if (!THIS->driver) { GB.Error("No driver specified"); return; }
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static void set_type(void *_object, const char *type)
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{
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if (THIS->stream.desc)
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{
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GB.Error("Type can not be changed while the stream is opened");
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return;
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}
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THIS->driver = COMPRESS_GetDriver(type);
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}
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static void *create_uncompress(const char *type)
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{
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COMPRESS_DRIVER *driver;
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void *_object;
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driver = COMPRESS_GetDriver(type);
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if (!driver)
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return NULL;
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_object = GB.New(GB.FindClass("Uncompress"), NULL, NULL);
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THIS->driver = driver;
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return _object;
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}
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//*************************************************************************
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//#################### INITIALIZATION AND DESTRUCTION #####################
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//*************************************************************************
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/*************************************************
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Gambas object "Constructor"
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*************************************************/
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BEGIN_METHOD_VOID(Uncompress_new)
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THIS->driver=NULL;
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THIS->stream.desc=NULL;
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END_METHOD
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/*************************************************
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Gambas object "Destructor"
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*************************************************/
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BEGIN_METHOD_VOID(Uncompress_free)
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if (THIS->stream.desc && THIS->driver)
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THIS->driver->Compress.Close(&THIS->stream);
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END_METHOD
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BEGIN_METHOD (Uncompress_File, GB_STRING Source; GB_STRING Target)
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Check_Driver();
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THIS->driver->Uncompress.File(STRING(Source), STRING(Target));
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END_METHOD
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BEGIN_METHOD(Uncompress_String, GB_STRING Source)
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char *target = NULL;
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unsigned int lent = 0;
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Check_Driver();
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if (!LENGTH(Source)) { GB.ReturnVoidString(); return; }
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THIS->driver->Uncompress.String(&target, &lent, STRING(Source), LENGTH(Source));
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if (!lent) { GB.ReturnVoidString(); return; }
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GB.ReturnNewString(target, lent);
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GB.Free(POINTER(&target));
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END_METHOD
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BEGIN_METHOD (Uncompress_Open,GB_STRING Path;)
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Check_Driver();
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if (THIS->stream.desc) { GB.Error ("File is already opened"); return; }
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THIS->driver->Uncompress.Open(STRING(Path), &THIS->stream);
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END_METHOD
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BEGIN_PROPERTY (Uncompress_Type)
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if (READ_PROPERTY)
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{
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if (!THIS->driver)
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{
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GB.ReturnNull();
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return;
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}
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GB.ReturnNewZeroString(THIS->driver->name);
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return;
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}
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set_type(THIS, GB.ToZeroString(PROP(GB_STRING)));
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END_PROPERTY
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BEGIN_METHOD(Uncompress_get, GB_STRING type)
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GB.ReturnObject(create_uncompress(GB.ToZeroString(ARG(type))));
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END_METHOD
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/*******************************************************************
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Interface declaration
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*******************************************************************/
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GB_DESC UncompressDesc[] =
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{
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GB_DECLARE("Uncompress", sizeof(CUNCOMPRESS)),
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GB_INHERITS("Stream"),
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GB_PROPERTY("Type", "s", Uncompress_Type),
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GB_METHOD("_new", NULL, Uncompress_new, NULL),
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GB_METHOD("_free", NULL, Uncompress_free, NULL),
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GB_METHOD("String", "s", Uncompress_String,"(Source)s"),
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GB_METHOD("File", NULL, Uncompress_File, "(Source)s(Target)s"),
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GB_METHOD("Open", NULL, Uncompress_Open, "(Path)s"),
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GB_STATIC_METHOD("_get", "Uncompress", Uncompress_get, "(Type)s"),
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GB_END_DECLARE
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};
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