-
-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)
-{
- 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
- break;
- }
- case VT_I4:
- {
- variant = (long) oleVariant.lVal;
- break;
- }
- case VT_I2:
- {
- variant = (long) oleVariant.iVal;
- break;
- }
-
- case VT_BOOL:
- {
-#if (defined(_MSC_VER) && (_MSC_VER <= 1000) && !defined(__MWERKS__) ) //GC
-#ifndef HAVE_BOOL // Can't use bool operator if no native bool type
- variant = (long) (oleVariant.bool != 0);
-#else
- variant = (bool) (oleVariant.bool != 0);
-#endif
-#else
-#ifndef HAVE_BOOL // Can't use bool operator if no native bool type
- variant = (long) (oleVariant.boolVal != 0);
-#else
- variant = (bool) (oleVariant.boolVal != 0);
-#endif
-#endif
- break;
- }
- case VT_R8:
- {
- variant = oleVariant.dblVal;
- break;
- }
- case VT_ARRAY:
- {
- variant.ClearList();
-
- int cDims, cElements, i;
- VARIANTARG* pvdata;
-
- // Iterate the dimensions: number of elements is x*y*z
- for (cDims = 0, cElements = 1;
- cDims < oleVariant.parray->cDims; cDims ++)
- cElements *= oleVariant.parray->rgsabound[cDims].cElements;
-
- // Get a pointer to the data
- HRESULT hr = SafeArrayAccessData(oleVariant.parray, (void HUGEP* FAR*) & pvdata);
- if (hr != NOERROR)
- return false;
- // Iterate the data.
- for (i = 0; i < cElements; i++)
- {
- VARIANTARG& oleElement = pvdata[i];
- wxVariant vElement;
- if (!wxConvertOleToVariant(oleElement, vElement))
- return false;
-
- variant.Append(vElement);
- }
- SafeArrayUnaccessData(oleVariant.parray);
- 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"));
- return false;
- }
- }
- return true;
-}
-
-/*
- * ClearVariant
- *
- * Zeros a variant structure without regard to current contents
- */
-static void ClearVariant(VARIANTARG *pvarg)
-{
- pvarg->vt = VT_EMPTY;
- pvarg->wReserved1 = 0;
- pvarg->wReserved2 = 0;
- pvarg->wReserved3 = 0;
- pvarg->lVal = 0;
-}
-
-/*
- * ReleaseVariant
- *
- * Clears a particular variant structure and releases any external objects
- * or memory contained in the variant. Supports the data types listed above.
- */
-static void ReleaseVariant(VARIANTARG *pvarg)
-{
- VARTYPE vt;
- VARIANTARG _huge *pvargArray;
- long lLBound, lUBound, l;
-
- vt = (VARTYPE)(pvarg->vt & 0xfff); // mask off flags
-
- // check if an array. If so, free its contents, then the array itself.
- if (V_ISARRAY(pvarg))
- {
- // variant arrays are all this routine currently knows about. Since a
- // variant can contain anything (even other arrays), call ourselves
- // recursively.
- if (vt == VT_VARIANT)
- {
- SafeArrayGetLBound(pvarg->parray, 1, &lLBound);
- SafeArrayGetUBound(pvarg->parray, 1, &lUBound);
-
- if (lUBound > lLBound)
- {
- lUBound -= lLBound;
-
- SafeArrayAccessData(pvarg->parray, (void**)&pvargArray);
-
- for (l = 0; l < lUBound; l++)
- {
- ReleaseVariant(pvargArray);
- pvargArray++;
- }
-
- SafeArrayUnaccessData(pvarg->parray);
- }
- }
- else
- {
- wxLogWarning(wxT("ReleaseVariant: Array contains non-variant type"));
- }
-
- // Free the array itself.
- SafeArrayDestroy(pvarg->parray);
- }
- else
- {
- switch (vt)
- {
- case VT_DISPATCH:
- if (pvarg->pdispVal)
- pvarg->pdispVal->Release();
- break;
-
- case VT_BSTR:
- SysFreeString(pvarg->bstrVal);
- break;
-
- case VT_I2:
- case VT_I4:
- case VT_BOOL:
- case VT_R8:
- case VT_ERROR: // to avoid erroring on an error return from Excel
- case VT_EMPTY:
- // no work for these types
- break;
-
- default:
- wxLogWarning(wxT("ReleaseVariant: Unknown type"));
- break;
- }
- }
-
- ClearVariant(pvarg);
-}
projects / wxWidgets.git / blobdiff