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handle VT_ARRAY/VT_BYREF VARIANTs in wxConvertOleToVariant() (patch 1845897)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50899 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2007-12-22 15:22:16 +00:00
parent 07c0e08a26
commit 242019eef3
1 changed files with 124 additions and 99 deletions
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223
src/msw/ole/automtn.cpp
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@ -671,112 +671,137 @@ WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& ole
#define VT_TYPEMASK 0xfff
#endif
WXDLLEXPORT bool wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
WXDLLEXPORT bool
wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
{
switch (oleVariant.vt & VT_TYPEMASK)
if ( oleVariant.vt & VT_ARRAY )
{
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);
variant.ClearList();
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;
}
// 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;
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"));
// Get a pointer to the data
VARIANTARG* pvdata;
HRESULT hr = SafeArrayAccessData(oleVariant.parray, (void **)&pvdata);
if ( FAILED(hr) )
return false;
bool ok = true;
for ( int i = 0; i < cElements; i++ )
{
VARIANTARG& oleElement = pvdata[i];
wxVariant vElement;
if ( !wxConvertOleToVariant(oleElement, vElement) )
{
ok = false;
variant.ClearList();
break;
}
variant.Append(vElement);
}
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
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_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 true;
}