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27 
28 #ifndef _AUTO_BUFFER_HXX_
29 #define _AUTO_BUFFER_HXX_
30 
31 //------------------------------------------------------------------------
32 // includes
33 //------------------------------------------------------------------------
34 
35 #include <sal/types.h>
36 #include <rtl/ustring.hxx>
37 
38 //-------------------------------------------------------------
39 // A simple unicode buffer management class, the class itself
40 // is responsible for the allocated unicode buffer, any
41 // modification of the buffer size outside the class may lead
42 // to undefined behaviour
43 //-------------------------------------------------------------
44 
45 class CAutoUnicodeBuffer
46 {
47 public:
48 
49 	// if bLazyCreation is true the buffer will be created
50 	// when someone wants to fill the buffer
51 	CAutoUnicodeBuffer( size_t size, sal_Bool bLazyCreation = sal_False );
52 	~CAutoUnicodeBuffer( );
53 
54 	// resizes the buffer
55 	sal_Bool SAL_CALL resize( size_t new_size );
56 
57 	// zeros the buffer
58 	void SAL_CALL empty( );
59 
60 	// fills the buffer with a given content
61 	sal_Bool SAL_CALL fill( const sal_Unicode* pContent, size_t nLen );
62 
63 	// returns the size of the buffer
64 	size_t SAL_CALL size( ) const;
65 
66 	// conversion operator
67 	operator sal_Unicode*( );
68 
69 	// address operator
70 	sal_Unicode* operator&( );
71 
72 	const sal_Unicode* operator&( ) const;
73 
74 private:
75 	void SAL_CALL init( );
76 
77 private:
78 	size_t m_buffSize; // the number of unicode chars
79 	sal_Unicode* m_pBuff;
80 };
81 
82 #endif
83