| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/ole/uuid.cpp |
| 3 | // Purpose: implements Uuid class, see uuid.h for details |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 12.09.96 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // Declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #if defined(__BORLANDC__) |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #if wxUSE_OLE && ( wxUSE_DRAG_AND_DROP || (defined(__WXDEBUG__) && wxUSE_DATAOBJ) ) |
| 24 | |
| 25 | // standard headers |
| 26 | #if wxCHECK_W32API_VERSION( 1, 0 ) |
| 27 | #include "wx/msw/wrapwin.h" |
| 28 | #endif |
| 29 | #include <rpc.h> // UUID related functions |
| 30 | |
| 31 | #include "wx/msw/ole/uuid.h" |
| 32 | |
| 33 | |
| 34 | |
| 35 | // ============================================================================ |
| 36 | // Implementation |
| 37 | // ============================================================================ |
| 38 | |
| 39 | // length of UUID in C format |
| 40 | #define UUID_CSTRLEN 100 // real length is 66 |
| 41 | |
| 42 | // copy ctor |
| 43 | Uuid::Uuid(const Uuid& uuid) |
| 44 | { |
| 45 | // bitwise copy Ok for UUIDs |
| 46 | m_uuid = uuid.m_uuid; |
| 47 | |
| 48 | // force the string to be allocated by RPC |
| 49 | // (we free it later with RpcStringFree) |
| 50 | #ifdef _UNICODE |
| 51 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); |
| 52 | #else |
| 53 | UuidToString(&m_uuid, &m_pszUuid); |
| 54 | #endif |
| 55 | |
| 56 | // allocate new buffer |
| 57 | m_pszCForm = new wxChar[UUID_CSTRLEN]; |
| 58 | // and fill it |
| 59 | memcpy(m_pszCForm, uuid.m_pszCForm, UUID_CSTRLEN*sizeof(wxChar)); |
| 60 | } |
| 61 | |
| 62 | // assignment operator |
| 63 | Uuid& Uuid::operator=(const Uuid& uuid) |
| 64 | { |
| 65 | m_uuid = uuid.m_uuid; |
| 66 | |
| 67 | // force the string to be allocated by RPC |
| 68 | // (we free it later with RpcStringFree) |
| 69 | #ifdef _UNICODE |
| 70 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); |
| 71 | #else |
| 72 | UuidToString(&m_uuid, &m_pszUuid); |
| 73 | #endif |
| 74 | |
| 75 | // allocate new buffer if not done yet |
| 76 | if ( !m_pszCForm ) |
| 77 | m_pszCForm = new wxChar[UUID_CSTRLEN]; |
| 78 | |
| 79 | // and fill it |
| 80 | memcpy(m_pszCForm, uuid.m_pszCForm, UUID_CSTRLEN*sizeof(wxChar)); |
| 81 | |
| 82 | return *this; |
| 83 | } |
| 84 | |
| 85 | // dtor |
| 86 | Uuid::~Uuid() |
| 87 | { |
| 88 | // this string must be allocated by RPC! |
| 89 | // (otherwise you get a debug breakpoint deep inside RPC DLL) |
| 90 | if ( m_pszUuid ) |
| 91 | #ifdef _UNICODE |
| 92 | RpcStringFree((unsigned short **)&m_pszUuid); |
| 93 | #else |
| 94 | RpcStringFree(&m_pszUuid); |
| 95 | #endif |
| 96 | |
| 97 | // perhaps we should just use a static buffer and not bother |
| 98 | // with new and delete? |
| 99 | if ( m_pszCForm ) |
| 100 | delete [] m_pszCForm; |
| 101 | } |
| 102 | |
| 103 | // update string representation of new UUID |
| 104 | void Uuid::Set(const UUID &uuid) |
| 105 | { |
| 106 | m_uuid = uuid; |
| 107 | |
| 108 | // get string representation |
| 109 | #ifdef _UNICODE |
| 110 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); |
| 111 | #else |
| 112 | UuidToString(&m_uuid, &m_pszUuid); |
| 113 | #endif |
| 114 | |
| 115 | // cache UUID in C format |
| 116 | UuidToCForm(); |
| 117 | } |
| 118 | |
| 119 | // create a new UUID |
| 120 | void Uuid::Create() |
| 121 | { |
| 122 | UUID uuid; |
| 123 | |
| 124 | // can't fail |
| 125 | UuidCreate(&uuid); |
| 126 | |
| 127 | Set(uuid); |
| 128 | } |
| 129 | |
| 130 | // set the value |
| 131 | bool Uuid::Set(const wxChar *pc) |
| 132 | { |
| 133 | // get UUID from string |
| 134 | #ifdef _UNICODE |
| 135 | if ( UuidFromString((unsigned short *)pc, &m_uuid) != RPC_S_OK) |
| 136 | #else |
| 137 | if ( UuidFromString((wxUChar *)pc, &m_uuid) != RPC_S_OK) |
| 138 | #endif |
| 139 | // failed: probably invalid string |
| 140 | return false; |
| 141 | |
| 142 | // transform it back to string to normalize it |
| 143 | #ifdef _UNICODE |
| 144 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); |
| 145 | #else |
| 146 | UuidToString(&m_uuid, &m_pszUuid); |
| 147 | #endif |
| 148 | |
| 149 | // update m_pszCForm |
| 150 | UuidToCForm(); |
| 151 | |
| 152 | return true; |
| 153 | } |
| 154 | |
| 155 | // stores m_uuid in m_pszCForm in a format required by |
| 156 | // DEFINE_GUID macro: i.e. something like |
| 157 | // 0x7D8A2281L,0x4C61,0x11D0,0xBA,0xBD,0x00,0x00,0xC0,0x18,0xBA,0x27 |
| 158 | // m_pszUuid is of the form (no, it's not quite the same UUID :-) |
| 159 | // 6aadc650-67b0-11d0-bac8-0000c018ba27 |
| 160 | void Uuid::UuidToCForm() |
| 161 | { |
| 162 | if ( m_pszCForm == NULL ) |
| 163 | m_pszCForm = new wxChar[UUID_CSTRLEN]; |
| 164 | |
| 165 | wsprintf(m_pszCForm, wxT("0x%8.8X,0x%4.4X,0x%4.4X,0x%2.2X,0x2.2%X,0x2.2%X,0x2.2%X,0x2.2%X,0x2.2%X,0x2.2%X,0x2.2%X"), |
| 166 | m_uuid.Data1, m_uuid.Data2, m_uuid.Data3, |
| 167 | m_uuid.Data4[0], m_uuid.Data4[1], m_uuid.Data4[2], m_uuid.Data4[3], |
| 168 | m_uuid.Data4[4], m_uuid.Data4[5], m_uuid.Data4[6], m_uuid.Data4[7]); |
| 169 | } |
| 170 | |
| 171 | #endif |
| 172 | // wxUSE_DRAG_AND_DROP |