95aa370a7e
* BUG: Do not use GB.ReturnNull() when returning a void string anymore. Use the new GB.ReturnVoidString() API instead. git-svn-id: svn://localhost/gambas/trunk@4216 867c0c6c-44f3-4631-809d-bfa615b0a4ec
150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/***************************************************************************
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CUncompress.c
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(c) 2003-2004 Daniel Campos Fern<72>dez <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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//*************************************************************************
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//#################### INITIALIZATION AND DESTRUCTION #####################
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//*************************************************************************
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/*************************************************
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Class "Constructor"
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*************************************************/
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BEGIN_METHOD_VOID(CUNCOMPRESS_init)
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END_METHOD
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/*************************************************
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Class "Destructor"
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*************************************************/
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BEGIN_METHOD_VOID(CUNCOMPRESS_exit)
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END_METHOD
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/*************************************************
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Gambas object "Constructor"
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*************************************************/
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BEGIN_METHOD_VOID(CUNCOMPRESS_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(CUNCOMPRESS_free)
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if (THIS->stream.desc && THIS->driver) THIS->driver->Compress.Close(&THIS->stream);
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END_METHOD
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BEGIN_METHOD (CUNCOMPRESS_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 (CUNCOMPRESS_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 (CUNCOMPRESS_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 (CUNCOMPRESS_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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if (THIS->stream.desc) { GB.Error("Type can not be changed while the stream is opened"); return; }
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if (!PROP(GB_STRING)) { GB.Error("Invalid driver name"); return; }
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if (!(THIS->driver=COMPRESS_GetDriver(GB.ToZeroString(PROP(GB_STRING)))) )
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{
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GB.Error("Cannot find driver &1", GB.ToZeroString(PROP(GB_STRING)));
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}
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END_PROPERTY
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/*******************************************************************
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Interface declaration
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*******************************************************************/
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GB_DESC CUncompressDesc[] =
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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",CUNCOMPRESS_Type),
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GB_STATIC_METHOD("_init", NULL, CUNCOMPRESS_init, NULL),
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GB_STATIC_METHOD("_exit", NULL, CUNCOMPRESS_exit, NULL),
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GB_METHOD("_new", NULL, CUNCOMPRESS_new, NULL),
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GB_METHOD("_free", NULL, CUNCOMPRESS_free, NULL),
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GB_METHOD("String","s",CUNCOMPRESS_String,"(Source)s"),
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GB_METHOD("File",NULL,CUNCOMPRESS_File,"(Source)s(Target)s"),
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GB_METHOD("Open",NULL,CUNCOMPRESS_Open,"(Path)s"),
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GB_END_DECLARE
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};
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