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