| | 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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