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ole32: Add support for saving enhmetafiles to CONTENTS and Presentation streams. 

Signed-off-by: Sergio Gómez Del Real <sdelreal@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sergio Gómez Del Real 2017-12-06 10:52:26 -05:00 committed by Alexandre Julliard
parent 8dd207a219
commit edc2b347f2
1 changed files with 57 additions and 1 deletions
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58
dlls/ole32/datacache.c
View File

@ -939,8 +939,61 @@ static HRESULT save_mfpict(DataCacheEntry *entry, BOOL contents, IStream *stream
return hr;
}
static const WCHAR CONTENTS[] = {'C','O','N','T','E','N','T','S',0};
static HRESULT save_emf(DataCacheEntry *entry, BOOL contents, IStream *stream)
{
HRESULT hr = S_OK;
int data_size = 0;
BYTE *data;
if (!contents)
{
PresentationDataHeader header;
METAFILEPICT *mfpict;
HDC hdc = GetDC(0);
init_stream_header(entry, &header);
hr = write_clipformat(stream, entry->fmtetc.cfFormat);
if (FAILED(hr))
{
ReleaseDC(0, hdc);
return hr;
}
data_size = GetWinMetaFileBits(entry->stgmedium.u.hEnhMetaFile, 0, NULL, MM_ANISOTROPIC, hdc);
header.dwSize = data_size;
data = HeapAlloc(GetProcessHeap(), 0, header.dwSize);
if (!data)
{
ReleaseDC(0, hdc);
return E_OUTOFMEMORY;
}
GetWinMetaFileBits(entry->stgmedium.u.hEnhMetaFile, header.dwSize, data, MM_ANISOTROPIC, hdc);
ReleaseDC(0, hdc);
mfpict = (METAFILEPICT *)data;
header.dwObjectExtentX = mfpict->xExt;
header.dwObjectExtentY = mfpict->yExt;
hr = IStream_Write(stream, &header, sizeof(PresentationDataHeader), NULL);
if (hr == S_OK && data_size)
hr = IStream_Write(stream, data, data_size, NULL);
HeapFree(GetProcessHeap(), 0, data);
}
else
{
data_size = GetEnhMetaFileBits(entry->stgmedium.u.hEnhMetaFile, 0, NULL);
data = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD) + sizeof(ENHMETAHEADER) + data_size);
if (!data) return E_OUTOFMEMORY;
*((DWORD *)data) = sizeof(ENHMETAHEADER);
GetEnhMetaFileBits(entry->stgmedium.u.hEnhMetaFile, data_size, data + sizeof(DWORD) + sizeof(ENHMETAHEADER));
memcpy(data + sizeof(DWORD), data + sizeof(DWORD) + sizeof(ENHMETAHEADER), sizeof(ENHMETAHEADER));
data_size += sizeof(DWORD) + sizeof(ENHMETAHEADER);
if (hr == S_OK && data_size)
hr = IStream_Write(stream, data, data_size, NULL);
HeapFree(GetProcessHeap(), 0, data);
}
return hr;
}
static const WCHAR CONTENTS[] = {'C','O','N','T','E','N','T','S',0};
static HRESULT create_stream(DataCacheEntry *cache_entry, IStorage *storage,
BOOL contents, IStream **stream)
{
@ -981,6 +1034,9 @@ static HRESULT DataCacheEntry_Save(DataCacheEntry *cache_entry, IStorage *storag
case CF_METAFILEPICT:
hr = save_mfpict(cache_entry, contents, stream);
break;
case CF_ENHMETAFILE:
hr = save_emf(cache_entry, contents, stream);
break;
default:
FIXME("got unsupported clipboard format %x\n", cache_entry->fmtetc.cfFormat);
}