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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 || wxUSE_DATAOBJ)
24
25#ifndef WX_PRECOMP
26 #include "wx/msw/wrapwin.h"
27#endif
28
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
43Uuid::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
63Uuid& 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
85bool Uuid::operator==(const Uuid& uuid) const
86{
87 // IsEqualGUID() returns BOOL and not bool so use an explicit comparison to
88 // avoid MSVC warnings about int->bool conversion
89 return IsEqualGUID(m_uuid, uuid.m_uuid) == TRUE;
90}
91
92// dtor
93Uuid::~Uuid()
94{
95 // this string must be allocated by RPC!
96 // (otherwise you get a debug breakpoint deep inside RPC DLL)
97 if ( m_pszUuid )
98#ifdef _UNICODE
99 RpcStringFree((unsigned short **)&m_pszUuid);
100#else
101 RpcStringFree(&m_pszUuid);
102#endif
103
104 // perhaps we should just use a static buffer and not bother
105 // with new and delete?
106 if ( m_pszCForm )
107 delete [] m_pszCForm;
108}
109
110// update string representation of new UUID
111void Uuid::Set(const UUID &uuid)
112{
113 m_uuid = uuid;
114
115 // get string representation
116#ifdef _UNICODE
117 UuidToString(&m_uuid, (unsigned short **)&m_pszUuid);
118#else
119 UuidToString(&m_uuid, &m_pszUuid);
120#endif
121
122 // cache UUID in C format
123 UuidToCForm();
124}
125
126// create a new UUID
127void Uuid::Create()
128{
129 UUID uuid;
130
131 // can't fail
132 UuidCreate(&uuid);
133
134 Set(uuid);
135}
136
137// set the value
138bool Uuid::Set(const wxChar *pc)
139{
140 // get UUID from string
141#ifdef _UNICODE
142 if ( UuidFromString((unsigned short *)pc, &m_uuid) != RPC_S_OK)
143#else
144 if ( UuidFromString((wxUChar *)pc, &m_uuid) != RPC_S_OK)
145#endif
146 // failed: probably invalid string
147 return false;
148
149 // transform it back to string to normalize it
150#ifdef _UNICODE
151 UuidToString(&m_uuid, (unsigned short **)&m_pszUuid);
152#else
153 UuidToString(&m_uuid, &m_pszUuid);
154#endif
155
156 // update m_pszCForm
157 UuidToCForm();
158
159 return true;
160}
161
162// stores m_uuid in m_pszCForm in a format required by
163// DEFINE_GUID macro: i.e. something like
164// 0x7D8A2281L,0x4C61,0x11D0,0xBA,0xBD,0x00,0x00,0xC0,0x18,0xBA,0x27
165// m_pszUuid is of the form (no, it's not quite the same UUID :-)
166// 6aadc650-67b0-11d0-bac8-0000c018ba27
167void Uuid::UuidToCForm()
168{
169 if ( m_pszCForm == NULL )
170 m_pszCForm = new wxChar[UUID_CSTRLEN];
171
172 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"),
173 m_uuid.Data1, m_uuid.Data2, m_uuid.Data3,
174 m_uuid.Data4[0], m_uuid.Data4[1], m_uuid.Data4[2], m_uuid.Data4[3],
175 m_uuid.Data4[4], m_uuid.Data4[5], m_uuid.Data4[6], m_uuid.Data4[7]);
176}
177
178#endif
179 // wxUSE_DRAG_AND_DROP