| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: buffer.h |
| 3 | // Purpose: auto buffer classes: buffers which automatically free memory |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 12.04.99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // Licence: wxWindows license |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // these classes are for private use only for now, they're not documented |
| 13 | |
| 14 | #ifndef _WX_BUFFER_H |
| 15 | #define _WX_BUFFER_H |
| 16 | |
| 17 | #include "wx/wxchar.h" |
| 18 | #include <string.h> // strdup |
| 19 | |
| 20 | // ---------------------------------------------------------------------------- |
| 21 | // Special classes for (wide) character strings: they use malloc/free instead |
| 22 | // of new/delete |
| 23 | // ---------------------------------------------------------------------------- |
| 24 | |
| 25 | class wxCharBuffer |
| 26 | { |
| 27 | public: |
| 28 | wxCharBuffer(const char *str) |
| 29 | { |
| 30 | wxASSERT_MSG( str, _T("NULL string in wxCharBuffer") ); |
| 31 | |
| 32 | m_str = str ? strdup(str) : (char *)NULL; |
| 33 | } |
| 34 | wxCharBuffer(size_t len) |
| 35 | { |
| 36 | m_str = (char *)malloc(len+1); |
| 37 | m_str[len] = '\0'; |
| 38 | } |
| 39 | // no need to check for NULL, free() does it |
| 40 | ~wxCharBuffer() { free(m_str); } |
| 41 | |
| 42 | wxCharBuffer(const wxCharBuffer& src) |
| 43 | { |
| 44 | m_str = src.m_str; |
| 45 | // no reference count yet... |
| 46 | ((wxCharBuffer*)&src)->m_str = (char *)NULL; |
| 47 | } |
| 48 | wxCharBuffer& operator=(const wxCharBuffer& src) |
| 49 | { |
| 50 | m_str = src.m_str; |
| 51 | // no reference count yet... |
| 52 | ((wxCharBuffer*)&src)->m_str = (char *)NULL; |
| 53 | return *this; |
| 54 | } |
| 55 | |
| 56 | operator const char *() const { return m_str; } |
| 57 | char operator[](size_t n) const { return m_str[n]; } |
| 58 | |
| 59 | private: |
| 60 | char *m_str; |
| 61 | }; |
| 62 | |
| 63 | #if wxUSE_WCHAR_T |
| 64 | class wxWCharBuffer |
| 65 | { |
| 66 | public: |
| 67 | wxWCharBuffer(const wchar_t *wcs) |
| 68 | { |
| 69 | wxASSERT_MSG( wcs, _T("NULL string in wxWCharBuffer") ); |
| 70 | |
| 71 | if (wcs) { |
| 72 | size_t siz = (wcslen(wcs)+1)*sizeof(wchar_t); |
| 73 | m_wcs = (wchar_t *)malloc(siz); |
| 74 | memcpy(m_wcs, wcs, siz); |
| 75 | } |
| 76 | else m_wcs = (wchar_t *)NULL; |
| 77 | } |
| 78 | wxWCharBuffer(size_t len) |
| 79 | { |
| 80 | m_wcs = (wchar_t *)malloc((len+1)*sizeof(wchar_t)); |
| 81 | m_wcs[len] = L'\0'; |
| 82 | } |
| 83 | |
| 84 | // no need to check for NULL, free() does it |
| 85 | ~wxWCharBuffer() { free(m_wcs); } |
| 86 | |
| 87 | wxWCharBuffer(const wxWCharBuffer& src) |
| 88 | { |
| 89 | m_wcs = src.m_wcs; |
| 90 | // no reference count yet... |
| 91 | ((wxWCharBuffer*)&src)->m_wcs = (wchar_t *)NULL; |
| 92 | } |
| 93 | wxWCharBuffer& operator=(const wxWCharBuffer& src) |
| 94 | { |
| 95 | m_wcs = src.m_wcs; |
| 96 | // no reference count yet... |
| 97 | ((wxWCharBuffer*)&src)->m_wcs = (wchar_t *)NULL; |
| 98 | return *this; |
| 99 | } |
| 100 | |
| 101 | operator const wchar_t *() const { return m_wcs; } |
| 102 | wchar_t operator[](size_t n) const { return m_wcs[n]; } |
| 103 | |
| 104 | private: |
| 105 | wchar_t *m_wcs; |
| 106 | }; |
| 107 | #endif |
| 108 | |
| 109 | #if wxUSE_UNICODE |
| 110 | #define wxMB2WXbuf wxWCharBuffer |
| 111 | #define wxWX2MBbuf wxCharBuffer |
| 112 | #define wxWC2WXbuf wxChar* |
| 113 | #define wxWX2WCbuf wxChar* |
| 114 | #else |
| 115 | #define wxMB2WXbuf wxChar* |
| 116 | #define wxWX2MBbuf wxChar* |
| 117 | #define wxWC2WXbuf wxCharBuffer |
| 118 | #define wxWX2WCbuf wxWCharBuffer |
| 119 | #endif |
| 120 | |
| 121 | // ---------------------------------------------------------------------------- |
| 122 | // template class for any kind of data |
| 123 | // ---------------------------------------------------------------------------- |
| 124 | |
| 125 | // TODO |
| 126 | |
| 127 | #endif // _WX_BUFFER_H |