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attempts at providing clipboard/dnd support for metafiles - unsuccessful

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5283 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-01-07 02:30:29 +00:00
parent 85ac091e8f
commit 265b0c070b
4 changed files with 416 additions and 325 deletions
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38
src/msw/ole/dataobj.cpp
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@@ -298,6 +298,12 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
break;
case wxDF_METAFILE:
pmedium->hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
sizeof(METAFILEPICT));
if ( !pmedium->hGlobal ) {
wxLogLastError("GlobalAlloc");
return E_OUTOFMEMORY;
}
pmedium->tymed = TYMED_MFPICT;
break;
@@ -334,7 +340,7 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
hr = GetDataHere(pformatetcIn, pmedium);
if ( FAILED(hr) ) {
// free resources we allocated
if ( pmedium->tymed == TYMED_HGLOBAL ) {
if ( pmedium->tymed & (TYMED_HGLOBAL | TYMED_MFPICT) ) {
GlobalFree(pmedium->hGlobal);
}
@@ -358,11 +364,6 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
break;
case TYMED_MFPICT:
// this should be copied on bitmaps - but I don't have time for
// this now
wxFAIL_MSG(wxT("TODO - no support for metafiles in wxDataObject"));
break;
case TYMED_HGLOBAL:
{
// copy data
@@ -409,11 +410,6 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
break;
case TYMED_MFPICT:
// this should be copied on bitmaps - but I don't have time for
// this now
wxFAIL_MSG(wxT("TODO - no support for metafiles in wxDataObject"));
break;
case TYMED_HGLOBAL:
{
wxDataFormat format = pformatetc->cfFormat;
@@ -467,6 +463,10 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
size = 0;
break;
case CF_METAFILEPICT:
size = sizeof(METAFILEPICT);
break;
default:
{
// we suppose that the size precedes the data
@@ -491,11 +491,17 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
}
if ( fRelease ) {
// we own the medium, so we must release it - but do *not* free the
// bitmap handle fi we have it because we have copied it elsewhere
if ( pmedium->tymed == TYMED_GDI )
// we own the medium, so we must release it - but do *not* free any
// data we pass by handle because we have copied it elsewhere
switch ( pmedium->tymed )
{
pmedium->hBitmap = 0;
case TYMED_GDI:
pmedium->hBitmap = 0;
break;
case TYMED_MFPICT:
pmedium->hMetaFilePict = 0;
break;
}
ReleaseStgMedium(pmedium);
@@ -759,7 +765,7 @@ bool wxBitmapDataObject2::GetDataHere(void *pBuf) const
return TRUE;
}
bool wxBitmapDataObject2::SetData(size_t len, const void *pBuf)
bool wxBitmapDataObject2::SetData(size_t WXUNUSED(len), const void *pBuf)
{
HBITMAP hbmp = *(HBITMAP *)pBuf;