-
-WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
-{
- ClearVariant(&oleVariant);
- if (variant.IsNull())
- {
- oleVariant.vt = VT_NULL;
- return true;
- }
-
- wxString type(variant.GetType());
-
-
- if (type == wxT("long"))
- {
- oleVariant.vt = VT_I4;
- oleVariant.lVal = variant.GetLong() ;
- }
- // cVal not always present
-#ifndef __GNUWIN32__
- else if (type == wxT("char"))
- {
- oleVariant.vt=VT_I1; // Signed Char
- oleVariant.cVal=variant.GetChar();
- }
-#endif
- else if (type == wxT("double"))
- {
- oleVariant.vt = VT_R8;
- oleVariant.dblVal = variant.GetDouble();
- }
- else if (type == wxT("bool"))
- {
- oleVariant.vt = VT_BOOL;
- // 'bool' required for VC++ 4 apparently
-#if (defined(__VISUALC__) && (__VISUALC__ <= 1000))
- oleVariant.bool = variant.GetBool();
-#else
- oleVariant.boolVal = variant.GetBool();
-#endif
- }
- else if (type == wxT("string"))
- {
- wxString str( variant.GetString() );
- oleVariant.vt = VT_BSTR;
- oleVariant.bstrVal = wxConvertStringToOle(str);
- }
-#if wxUSE_DATETIME
- else if (type == wxT("datetime"))
- {
- wxDateTime date( variant.GetDateTime() );
- oleVariant.vt = VT_DATE;
-
- long dosDateTime = date.GetAsDOS();
- short dosDate = short((dosDateTime & 0xFFFF0000) >> 16);
- short dosTime = short(dosDateTime & 0xFFFF);
-
- DosDateTimeToVariantTime(dosDate, dosTime, & oleVariant.date);
- }
-#endif
- else if (type == wxT("void*"))
- {
- oleVariant.vt = VT_DISPATCH;
- oleVariant.pdispVal = (IDispatch*) variant.GetVoidPtr();
- }
- else if (type == wxT("list") || type == wxT("stringlist"))
- {
- oleVariant.vt = VT_VARIANT | VT_ARRAY;
-
- SAFEARRAY *psa;
- SAFEARRAYBOUND saBound;
- VARIANTARG *pvargBase;
- VARIANTARG *pvarg;
- int i, j;
-
- int iCount = variant.GetCount();
-
- saBound.lLbound = 0;
- saBound.cElements = iCount;
-
- psa = SafeArrayCreate(VT_VARIANT, 1, &saBound);
- if (psa == NULL)
- return false;
-
- SafeArrayAccessData(psa, (void**)&pvargBase);
-
- pvarg = pvargBase;
- for (i = 0; i < iCount; i++)
- {
- // copy each string in the list of strings
- wxVariant eachVariant(variant[i]);
- if (!wxConvertVariantToOle(eachVariant, * pvarg))
- {
- // memory failure: back out and free strings alloc'ed up to
- // now, and then the array itself.
- pvarg = pvargBase;
- for (j = 0; j < i; j++)
- {
- SysFreeString(pvarg->bstrVal);
- pvarg++;
- }
- SafeArrayDestroy(psa);
- return false;
- }
- pvarg++;
- }
-
- SafeArrayUnaccessData(psa);
-
- oleVariant.parray = psa;
- }
- else
- {
- oleVariant.vt = VT_NULL;
- return false;
- }
- return true;
-}
-
-#ifndef VT_TYPEMASK
-#define VT_TYPEMASK 0xfff
-#endif
-
-WXDLLEXPORT bool
-wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
-{
- bool ok = true;
- if ( oleVariant.vt & VT_ARRAY )
- {
-
- // Compute the total number of elements in all array dimensions
- int cElements = 1;
- for ( int cDims = 0; cDims < oleVariant.parray->cDims; cDims++ )
- cElements *= oleVariant.parray->rgsabound[cDims].cElements;
-
- // Get a pointer to the data
- void* pvdata;
- HRESULT hr = SafeArrayAccessData(oleVariant.parray, &pvdata);
- if ( FAILED(hr) )
- return false;
-
- switch (oleVariant.vt & VT_TYPEMASK)
- {
- case VT_VARIANT:
- {
- variant.ClearList();
- VARIANTARG *variant_data=(VARIANTARG*)pvdata;
- for ( int i = 0; i < cElements; i++ )
- {
- VARIANTARG& oleElement = variant_data[i];
- wxVariant vElement;
- if ( !wxConvertOleToVariant(oleElement, vElement) )
- {
- ok = false;
- variant.ClearList();
- break;
- }
-
- variant.Append(vElement);
- }
- }
- break;
-
- case VT_BSTR:
- {
- wxArrayString strings;
- BSTR *string_val=(BSTR*)pvdata;
- for ( int i = 0; i < cElements; ++i )
- {
- wxString str=wxConvertStringFromOle(*string_val);
- strings.Add(str);
- ++string_val;
- }
- variant=strings;
- }
- break;
-
- default:
- wxLogDebug(_T("unhandled VT_ARRAY type %x in wxConvertOleToVariant"),
- oleVariant.vt & VT_TYPEMASK);
- variant = wxVariant();
- ok = false;
- break;
- }
-
- SafeArrayUnaccessData(oleVariant.parray);
- }
- else if ( oleVariant.vt & VT_BYREF )
- {
- switch ( oleVariant.vt & VT_TYPEMASK )
- {
- case VT_VARIANT:
- {
- VARIANTARG& oleReference = *((LPVARIANT)oleVariant.byref);
- if (!wxConvertOleToVariant(oleReference,variant))
- return false;
- break;
- }
-
- default:
- wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: [as yet] unhandled reference %X"),
- oleVariant.vt);
- return false;
- }
- }
- else // simply type (not array or reference)
- {
- switch ( oleVariant.vt & VT_TYPEMASK )
- {
- case VT_BSTR:
- {
- wxString str(wxConvertStringFromOle(oleVariant.bstrVal));
- variant = str;
- }
- break;
-
- case VT_DATE:
-#if wxUSE_DATETIME
- {
- unsigned short dosDate = 0;
- unsigned short dosTime = 0;
- VariantTimeToDosDateTime(oleVariant.date, & dosDate, & dosTime);
-
- long dosDateTime = (dosDate << 16) | dosTime;
- wxDateTime date;
- date.SetFromDOS(dosDateTime);
- variant = date;
- }
-#endif // wxUSE_DATETIME
- break;
-
- case VT_I4:
- variant = (long) oleVariant.lVal;
- break;
-
- case VT_I2:
- variant = (long) oleVariant.iVal;
- break;
-
- case VT_BOOL:
- variant = oleVariant.boolVal != 0;
- break;
-
- case VT_R8:
- variant = oleVariant.dblVal;
- break;
-
- case VT_DISPATCH:
- variant = (void*) oleVariant.pdispVal;
- break;
-
- case VT_NULL:
- variant.MakeNull();
- break;
-
- case VT_EMPTY:
- break; // Ignore Empty Variant, used only during destruction of objects
-
- default:
- wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: Unknown variant value type %X -> %X"),
- oleVariant.vt,oleVariant.vt&VT_TYPEMASK);
- return false;
- }
- }
-
- return ok;
-}
-
-/*
- * ClearVariant
- *
- * Zeros a variant structure without regard to current contents
- */
-static void ClearVariant(VARIANTARG *pvarg)
projects / wxWidgets.git / blobdiff