From b8abfd24b6d9fb3f2a5e6083fbf560c07a644f2e Mon Sep 17 00:00:00 2001
From: Tobias Doerffel <tobias.doerffel@gmail.com>
Date: Thu, 11 Jun 2009 12:17:05 +0200
Subject: [PATCH] ResourceFileMapper: new class for local access to resources

Added ResourceFileMapper which is an inline class allowing to access
all kind of ResourceItems locally by creating a QTemporaryFile object
and fetch data where neccessary (i.e. ResourceItem::isLocalResource()
returns false).

Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>
---
 include/ResourceFileMapper.h | 66 ++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 include/ResourceFileMapper.h

diff --git a/include/ResourceFileMapper.h b/include/ResourceFileMapper.h
new file mode 100644
index 000000000..921352e11
--- /dev/null
+++ b/include/ResourceFileMapper.h
@@ -0,0 +1,66 @@
+/*
+ * ResourceFileMapper.h - header file for ResourceFileMapper, an inline helper
+ *                        class allowing local access to any kind of ResourceItem's
+ *
+ * Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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 (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef _RESOURCE_FILE_MAPPER_H
+#define _RESOURCE_FILE_MAPPER_H
+
+#include <QtCore/QTemporaryFile>
+
+#include "ResourceItem.h"
+
+
+class ResourceFileMapper
+{
+public:
+	ResourceFileMapper( const ResourceItem * _item ) :
+		m_item( _item ),
+		m_tempFile( m_item->isLocalResource() ?
+				NULL : new QTemporaryFile )
+	{
+		if( m_tempFile && m_tempFile->open() )
+		{
+			m_tempFile->write( m_item->fetchData() );
+		}
+	}
+
+	~ResourceFileMapper()
+	{
+		delete m_tempFile;
+	}
+
+	QString fileName() const
+	{
+		return m_tempFile ? m_tempFile->fileName() : m_item->fullName();
+	}
+
+
+private:
+	const ResourceItem * m_item;
+	QTemporaryFile * m_tempFile;
+
+} ;
+
+
+#endif