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[wxWidgets.git] / src / msw / ole / safearray.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: msw/ole/safearray.cpp
3 // Purpose: Implementation of wxSafeArrayBase class.
4 // Author: PB
5 // Created: 2012-09-23
6 // Copyright: (c) 2012 wxWidgets development team
7 // Licence: wxWindows licence
8 ///////////////////////////////////////////////////////////////////////////////
9
10 // ============================================================================
11 // declarations
12 // ============================================================================
13
14 // ----------------------------------------------------------------------------
15 // headers
16 // ----------------------------------------------------------------------------
17
18 // for compilers that support precompilation, includes "wx.h".
19 #include "wx/wxprec.h"
20
21 #ifdef __BORLANDC__
22 #pragma hdrstop
23 #endif
24
25 #if wxUSE_OLE && wxUSE_VARIANT
26
27 #ifndef WX_PRECOMP
28 #include "wx/variant.h"
29 #endif // WX_PRECOMP
30
31 #include "wx/msw/ole/safearray.h"
32
33 // ============================================================================
34 // implementation
35 // ============================================================================
36
37 // ----------------------------------------------------------------------------
38 // wxSafeArrayBase
39 // ----------------------------------------------------------------------------
40
41 void wxSafeArrayBase::Destroy()
42 {
43 if ( m_array )
44 {
45 Unlock();
46 HRESULT hr = SafeArrayDestroy(m_array);
47 if ( FAILED(hr) )
48 {
49 wxLogApiError(wxS("SafeArrayDestroy()"), hr);
50 }
51 m_array = NULL;
52 }
53 }
54
55 SAFEARRAY* wxSafeArrayBase::Detach()
56 {
57 wxCHECK_MSG( m_array, NULL, wxS("Uninitialized safe array") );
58
59 Unlock();
60 SAFEARRAY* array = m_array;
61 m_array = NULL;
62 return array;
63 }
64
65 size_t wxSafeArrayBase::GetDim() const
66 {
67 wxASSERT( m_array );
68
69 return SafeArrayGetDim(m_array);
70 }
71
72 bool wxSafeArrayBase::GetLBound(size_t dim, long& bound) const
73 {
74 wxCHECK_MSG( m_array, false, wxS("Uninitialized safe array") );
75 wxCHECK_MSG( dim > 0, false, wxS("Invalid dimension index") );
76
77 HRESULT hr = SafeArrayGetLBound(m_array, dim, &bound);
78 if ( FAILED(hr) )
79 {
80 wxLogApiError(wxS("SafeArrayGetLBound()"), hr);
81 return false;
82 }
83 return true;
84 }
85
86 bool wxSafeArrayBase::GetUBound(size_t dim, long& bound) const
87 {
88 wxCHECK_MSG( m_array, false, wxS("Uninitialized safe array") );
89 wxCHECK_MSG( dim > 0, false, wxS("Invalid dimension index") );
90
91 HRESULT hr = SafeArrayGetUBound(m_array, dim, &bound);
92 if ( FAILED(hr) )
93 {
94 wxLogApiError(wxS("SafeArrayGetUBound()"), hr);
95 return false;
96 }
97 return true;
98 }
99
100 size_t wxSafeArrayBase::GetCount(size_t dim) const
101 {
102 long lBound, uBound;
103
104 if ( GetLBound(dim, lBound) && GetUBound(dim, uBound) )
105 return uBound - lBound + 1;
106 return 0;
107 }
108
109 bool wxSafeArrayBase::Lock()
110 {
111 wxCHECK_MSG( m_array, false, wxS("Uninitialized safe array") );
112
113 HRESULT hr = SafeArrayLock(m_array);
114 if ( FAILED(hr) )
115 {
116 wxLogApiError(wxS("SafeArrayLock()"), hr);
117 return false;
118 }
119 return true;
120 }
121
122 bool wxSafeArrayBase::Unlock()
123 {
124 wxCHECK_MSG( m_array, false, wxS("Uninitialized safe array") );
125
126 HRESULT hr = SafeArrayUnlock(m_array);
127 if ( FAILED(hr) )
128 {
129 wxLogApiError(wxS("SafeArrayUnlock()"), hr);
130 return false;
131 }
132 return true;
133 }
134
135 #endif // wxUSE_OLE && wxUSE_VARIANT
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