It is accomplished ...

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00
commit 52a3801208
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+//----------------------------------------------------------------------
+//  This software is part of the OpenBeOS distribution and is covered 
+//  by the OpenBeOS license.
+//---------------------------------------------------------------------
+/*!
+	\file ResourcesItem.h
+	ResourceItem interface declaration.
+*/
+
+#ifndef _sk_resource_item_h_
+#define _sk_resource_item_h_
+
+#include <MallocIO.h>
+#include <String.h>
+
+namespace StorageKit {
+
+/*!
+	\class ResourceItem
+	\brief Represents a resource loaded into memory.
+	
+	This class represents a resource completely or partially loaded into
+	memory. The minimal information stored in the object should be its
+	type, ID and name and the size of its data. If the data are not loaded
+	then additionally the offset (into a resource file) should be valid.
+	As soon as the data are loaded as well, the offset is more or less
+	meaningless.
+
+	Creating a new resource can be done by calling SetIdentity() after the
+	default construction. The object then represents a resource with the
+	specified type, ID and name and with empty data. Data can arbitrarily
+	be read and written using the methods the super class BMallocIO provides.
+
+	The memory for the resource data is owned by the ResourceItem object and
+	freed on destruction.
+
+	\author <a href='mailto:[email protected]'>Ingo Weinhold</a>
+	
+	\version 0.0.0
+*/
+class ResourceItem : public BMallocIO {
+public:
+	ResourceItem();
+	virtual ~ResourceItem();
+
+	virtual ssize_t WriteAt(off_t pos, const void *buffer, size_t size);
+	virtual status_t SetSize(off_t size);
+
+	void SetLocation(int32 offset, size_t initialSize);
+	void SetIdentity(type_code type, int32 id, const char *name);
+
+	void SetOffset(int32 offset);
+	int32 Offset() const;
+
+	size_t InitialSize() const;
+	size_t DataSize() const;
+
+	void SetType(type_code type);
+	type_code Type() const;
+
+	void SetID(int32 id);
+	int32 ID() const;
+
+	void SetName(const char *name);
+	const char *Name() const;
+
+	void *Data() const;
+
+	void SetLoaded(bool loaded);
+	bool IsLoaded() const;
+
+	void SetModified(bool modified);
+	bool IsModified() const;
+
+private:
+	int32		fOffset;
+	size_t		fInitialSize;
+	type_code	fType;
+	int32		fID;
+	BString		fName;
+	bool		fIsLoaded;
+	bool		fIsModified;
+};
+
+};	// namespace StorageKit
+
+#endif	// _sk_resource_item_h_