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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". | |
bbf1f0e5 KB |
21 | #include "wx/wxprec.h" |
22 | ||
23 | #if defined(__BORLANDC__) | |
24 | #pragma hdrstop | |
25 | #endif | |
26 | ||
3096bd2f | 27 | #include "wx/setup.h" |
bbf1f0e5 | 28 | |
47d67540 | 29 | #if wxUSE_DRAG_AND_DROP |
bbf1f0e5 KB |
30 | |
31 | // standard headers | |
32 | #include <rpc.h> // UUID related functions | |
33 | ||
3096bd2f | 34 | #include "wx/msw/ole/uuid.h" |
bbf1f0e5 KB |
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) | |
5f8e1c16 OK |
53 | #ifdef _UNICODE |
54 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); | |
55 | #else | |
bbf1f0e5 | 56 | UuidToString(&m_uuid, &m_pszUuid); |
5f8e1c16 | 57 | #endif |
bbf1f0e5 KB |
58 | |
59 | // allocate new buffer | |
5f8e1c16 | 60 | m_pszCForm = new wxChar[UUID_CSTRLEN]; |
bbf1f0e5 | 61 | // and fill it |
5f8e1c16 | 62 | memcpy(m_pszCForm, uuid.m_pszCForm, UUID_CSTRLEN*sizeof(wxChar)); |
bbf1f0e5 KB |
63 | } |
64 | ||
65 | // assignment operator | |
66 | Uuid& Uuid::operator=(const Uuid& uuid) | |
67 | { | |
68 | m_uuid = uuid.m_uuid; | |
69 | ||
70 | // force the string to be allocated by RPC | |
71 | // (we free it later with RpcStringFree) | |
5f8e1c16 OK |
72 | #ifdef _UNICODE |
73 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); | |
74 | #else | |
bbf1f0e5 | 75 | UuidToString(&m_uuid, &m_pszUuid); |
5f8e1c16 | 76 | #endif |
bbf1f0e5 KB |
77 | |
78 | // allocate new buffer if not done yet | |
79 | if ( !m_pszCForm ) | |
5f8e1c16 | 80 | m_pszCForm = new wxChar[UUID_CSTRLEN]; |
bbf1f0e5 KB |
81 | |
82 | // and fill it | |
5f8e1c16 | 83 | memcpy(m_pszCForm, uuid.m_pszCForm, UUID_CSTRLEN*sizeof(wxChar)); |
bbf1f0e5 KB |
84 | |
85 | return *this; | |
86 | } | |
87 | ||
88 | // dtor | |
89 | Uuid::~Uuid() | |
90 | { | |
91 | // this string must be allocated by RPC! | |
92 | // (otherwise you get a debug breakpoint deep inside RPC DLL) | |
93 | if ( m_pszUuid ) | |
5f8e1c16 OK |
94 | #ifdef _UNICODE |
95 | RpcStringFree((unsigned short **)&m_pszUuid); | |
96 | #else | |
bbf1f0e5 | 97 | RpcStringFree(&m_pszUuid); |
5f8e1c16 | 98 | #endif |
bbf1f0e5 KB |
99 | |
100 | // perhaps we should just use a static buffer and not bother | |
101 | // with new and delete? | |
102 | if ( m_pszCForm ) | |
103 | delete [] m_pszCForm; | |
104 | } | |
105 | ||
106 | // update string representation of new UUID | |
107 | void Uuid::Set(const UUID &uuid) | |
108 | { | |
109 | m_uuid = uuid; | |
110 | ||
111 | // get string representation | |
5f8e1c16 OK |
112 | #ifdef _UNICODE |
113 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); | |
114 | #else | |
bbf1f0e5 | 115 | UuidToString(&m_uuid, &m_pszUuid); |
5f8e1c16 | 116 | #endif |
bbf1f0e5 KB |
117 | |
118 | // cache UUID in C format | |
119 | UuidToCForm(); | |
120 | } | |
121 | ||
122 | // create a new UUID | |
123 | void Uuid::Create() | |
124 | { | |
125 | UUID uuid; | |
126 | ||
127 | // can't fail | |
128 | UuidCreate(&uuid); | |
129 | ||
130 | Set(uuid); | |
131 | } | |
132 | ||
133 | // set the value | |
5f8e1c16 | 134 | bool Uuid::Set(const wxChar *pc) |
bbf1f0e5 KB |
135 | { |
136 | // get UUID from string | |
5f8e1c16 OK |
137 | #ifdef _UNICODE |
138 | if ( UuidFromString((unsigned short *)pc, &m_uuid) != RPC_S_OK) | |
139 | #else | |
140 | if ( UuidFromString((wxUChar *)pc, &m_uuid) != RPC_S_OK) | |
141 | #endif | |
bbf1f0e5 KB |
142 | // failed: probably invalid string |
143 | return FALSE; | |
144 | ||
145 | // transform it back to string to normalize it | |
5f8e1c16 OK |
146 | #ifdef _UNICODE |
147 | UuidToString(&m_uuid, (unsigned short **)&m_pszUuid); | |
148 | #else | |
bbf1f0e5 | 149 | UuidToString(&m_uuid, &m_pszUuid); |
5f8e1c16 | 150 | #endif |
bbf1f0e5 KB |
151 | |
152 | // update m_pszCForm | |
153 | UuidToCForm(); | |
154 | ||
155 | return TRUE; | |
156 | } | |
157 | ||
158 | // stores m_uuid in m_pszCForm in a format required by | |
159 | // DEFINE_GUID macro: i.e. something like | |
160 | // 0x7D8A2281L,0x4C61,0x11D0,0xBA,0xBD,0x00,0x00,0xC0,0x18,0xBA,0x27 | |
161 | // m_pszUuid is of the form (no, it's not quite the same UUID :-) | |
162 | // 6aadc650-67b0-11d0-bac8-0000c018ba27 | |
163 | void Uuid::UuidToCForm() | |
164 | { | |
165 | if ( m_pszCForm == NULL ) | |
5f8e1c16 | 166 | m_pszCForm = new wxChar[UUID_CSTRLEN]; |
bbf1f0e5 | 167 | |
f6bcfd97 | 168 | 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"), |
bbf1f0e5 KB |
169 | m_uuid.Data1, m_uuid.Data2, m_uuid.Data3, |
170 | m_uuid.Data4[1], m_uuid.Data4[2], m_uuid.Data4[3], m_uuid.Data4[4], | |
171 | m_uuid.Data4[5], m_uuid.Data4[6], m_uuid.Data4[7], m_uuid.Data4[8]); | |
172 | } | |
173 | ||
174 | #endif | |
47d67540 | 175 | // wxUSE_DRAG_AND_DROP |