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21 
22 
23 
24 #ifndef _AUTO_BUFFER_HXX_
25 #define _AUTO_BUFFER_HXX_
26 
27 //------------------------------------------------------------------------
28 // includes
29 //------------------------------------------------------------------------
30 
31 #include <sal/types.h>
32 #include <rtl/ustring.hxx>
33 
34 //-------------------------------------------------------------
35 // A simple unicode buffer management class, the class itself
36 // is responsible for the allocated unicode buffer, any
37 // modification of the buffer size outside the class may lead
38 // to undefined behaviour
39 //-------------------------------------------------------------
40 
41 class CAutoUnicodeBuffer
42 {
43 public:
44 
45 	// if bLazyCreation is true the buffer will be created
46 	// when someone wants to fill the buffer
47 	CAutoUnicodeBuffer( size_t size, sal_Bool bLazyCreation = sal_False );
48 	~CAutoUnicodeBuffer( );
49 
50 	// resizes the buffer
51 	sal_Bool SAL_CALL resize( size_t new_size );
52 
53 	// zeros the buffer
54 	void SAL_CALL empty( );
55 
56 	// fills the buffer with a given content
57 	sal_Bool SAL_CALL fill( const sal_Unicode* pContent, size_t nLen );
58 
59 	// returns the size of the buffer
60 	size_t SAL_CALL size( ) const;
61 
62 	// conversion operator
63 	operator sal_Unicode*( );
64 
65 	// address operator
66 	sal_Unicode* operator&( );
67 
68 	const sal_Unicode* operator&( ) const;
69 
70 private:
71 	void SAL_CALL init( );
72 
73 private:
74 	size_t m_buffSize; // the number of unicode chars
75 	sal_Unicode* m_pBuff;
76 };
77 
78 #endif
79