4 * Copyright 1999 Francis Beaudet
5 * Copyright 2000 Abey George
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 * The OLE2 data cache supports a whole whack of
23 * interfaces including:
24 * IDataObject, IPersistStorage, IViewObject2,
25 * IOleCache2 and IOleCacheControl.
27 * Most of the implementation details are taken from: Inside OLE
28 * second edition by Kraig Brockschmidt,
31 * - This implementation of the datacache will let your application
32 * load documents that have embedded OLE objects in them and it will
33 * also retrieve the metafile representation of those objects.
34 * - This implementation of the datacache will also allow your
35 * application to save new documents with OLE objects in them.
36 * - The main thing that it doesn't do is allow you to activate
37 * or modify the OLE objects in any way.
38 * - I haven't found any good documentation on the real usage of
39 * the streams created by the data cache. In particular, How to
40 * determine what the XXX stands for in the stream name
41 * "\002OlePresXXX". It appears to just be a counter.
42 * - Also, I don't know the real content of the presentation stream
43 * header. I was able to figure-out where the extent of the object
44 * was stored and the aspect, but that's about it.
51 #define NONAMELESSUNION
59 #include "compobj_private.h"
60 #include "wine/unicode.h"
61 #include "wine/list.h"
62 #include "wine/debug.h"
64 WINE_DEFAULT_DEBUG_CHANNEL(ole
);
66 /****************************************************************************
67 * PresentationDataHeader
69 * This structure represents the header of the \002OlePresXXX stream in
70 * the OLE object storage.
72 typedef struct PresentationDataHeader
75 * - standard clipformat:
76 * DWORD length = 0xffffffff;
78 * - or custom clipformat:
80 * CHAR format_name[length]; (null-terminated)
82 DWORD unknown3
; /* 4, possibly TYMED_ISTREAM */
86 DWORD unknown7
; /* 0 */
87 DWORD dwObjectExtentX
;
88 DWORD dwObjectExtentY
;
90 } PresentationDataHeader
;
99 typedef struct DataCacheEntry
102 /* format of this entry */
104 /* the clipboard format of the data */
109 * This stream pointer is set through a call to
110 * IPersistStorage_Load. This is where the visual
111 * representation of the object is stored.
114 enum stream_type stream_type
;
119 /* stream number (-1 if not set ) */
120 unsigned short stream_number
;
121 /* sink id set when object is running */
123 /* Advise sink flags */
127 /****************************************************************************
133 * List all interface here
135 IUnknown IUnknown_inner
;
136 IDataObject IDataObject_iface
;
137 IPersistStorage IPersistStorage_iface
;
138 IViewObject2 IViewObject2_iface
;
139 IOleCache2 IOleCache2_iface
;
140 IOleCacheControl IOleCacheControl_iface
;
142 /* The sink that is connected to a remote object.
143 The other interfaces are not available by QI'ing the sink and vice-versa */
144 IAdviseSink IAdviseSink_iface
;
147 * Reference count of this object
152 * IUnknown implementation of the outer object.
157 * The user of this object can setup ONE advise sink
158 * connection with the object. These parameters describe
162 DWORD sinkAdviseFlag
;
163 IAdviseSink
*sinkInterface
;
166 IStorage
*presentationStorage
;
168 /* list of cache entries */
169 struct list cache_list
;
170 /* last id assigned to an entry */
174 /* running object set by OnRun */
175 IDataObject
*running_object
;
178 typedef struct DataCache DataCache
;
181 * Here, I define utility macros to help with the casting of the
183 * There is a version to accommodate all of the VTables implemented
187 static inline DataCache
*impl_from_IDataObject( IDataObject
*iface
)
189 return CONTAINING_RECORD(iface
, DataCache
, IDataObject_iface
);
192 static inline DataCache
*impl_from_IUnknown( IUnknown
*iface
)
194 return CONTAINING_RECORD(iface
, DataCache
, IUnknown_inner
);
197 static inline DataCache
*impl_from_IPersistStorage( IPersistStorage
*iface
)
199 return CONTAINING_RECORD(iface
, DataCache
, IPersistStorage_iface
);
202 static inline DataCache
*impl_from_IViewObject2( IViewObject2
*iface
)
204 return CONTAINING_RECORD(iface
, DataCache
, IViewObject2_iface
);
207 static inline DataCache
*impl_from_IOleCache2( IOleCache2
*iface
)
209 return CONTAINING_RECORD(iface
, DataCache
, IOleCache2_iface
);
212 static inline DataCache
*impl_from_IOleCacheControl( IOleCacheControl
*iface
)
214 return CONTAINING_RECORD(iface
, DataCache
, IOleCacheControl_iface
);
217 static inline DataCache
*impl_from_IAdviseSink( IAdviseSink
*iface
)
219 return CONTAINING_RECORD(iface
, DataCache
, IAdviseSink_iface
);
222 const char *debugstr_formatetc(const FORMATETC
*formatetc
)
224 return wine_dbg_sprintf("{ cfFormat = 0x%x, ptd = %p, dwAspect = %d, lindex = %d, tymed = %d }",
225 formatetc
->cfFormat
, formatetc
->ptd
, formatetc
->dwAspect
,
226 formatetc
->lindex
, formatetc
->tymed
);
229 /***********************************************************************
232 * Return the size of the bitmap info structure including color table.
234 static int bitmap_info_size( const BITMAPINFO
* info
, WORD coloruse
)
236 unsigned int colors
, size
, masks
= 0;
238 if (info
->bmiHeader
.biSize
== sizeof(BITMAPCOREHEADER
))
240 const BITMAPCOREHEADER
*core
= (const BITMAPCOREHEADER
*)info
;
241 colors
= (core
->bcBitCount
<= 8) ? 1 << core
->bcBitCount
: 0;
242 return sizeof(BITMAPCOREHEADER
) + colors
*
243 ((coloruse
== DIB_RGB_COLORS
) ? sizeof(RGBTRIPLE
) : sizeof(WORD
));
245 else /* assume BITMAPINFOHEADER */
247 colors
= info
->bmiHeader
.biClrUsed
;
248 if (colors
> 256) /* buffer overflow otherwise */
250 if (!colors
&& (info
->bmiHeader
.biBitCount
<= 8))
251 colors
= 1 << info
->bmiHeader
.biBitCount
;
252 if (info
->bmiHeader
.biCompression
== BI_BITFIELDS
) masks
= 3;
253 size
= max( info
->bmiHeader
.biSize
, sizeof(BITMAPINFOHEADER
) + masks
* sizeof(DWORD
) );
254 return size
+ colors
* ((coloruse
== DIB_RGB_COLORS
) ? sizeof(RGBQUAD
) : sizeof(WORD
));
258 static void DataCacheEntry_Destroy(DataCache
*cache
, DataCacheEntry
*cache_entry
)
260 list_remove(&cache_entry
->entry
);
261 if (cache_entry
->stream
)
262 IStream_Release(cache_entry
->stream
);
263 CoTaskMemFree(cache_entry
->fmtetc
.ptd
);
264 ReleaseStgMedium(&cache_entry
->stgmedium
);
265 if(cache_entry
->sink_id
)
266 IDataObject_DUnadvise(cache
->running_object
, cache_entry
->sink_id
);
268 HeapFree(GetProcessHeap(), 0, cache_entry
);
271 static void DataCache_Destroy(
272 DataCache
* ptrToDestroy
)
274 DataCacheEntry
*cache_entry
, *next_cache_entry
;
278 if (ptrToDestroy
->sinkInterface
!= NULL
)
280 IAdviseSink_Release(ptrToDestroy
->sinkInterface
);
281 ptrToDestroy
->sinkInterface
= NULL
;
284 LIST_FOR_EACH_ENTRY_SAFE(cache_entry
, next_cache_entry
, &ptrToDestroy
->cache_list
, DataCacheEntry
, entry
)
285 DataCacheEntry_Destroy(ptrToDestroy
, cache_entry
);
287 if (ptrToDestroy
->presentationStorage
!= NULL
)
289 IStorage_Release(ptrToDestroy
->presentationStorage
);
290 ptrToDestroy
->presentationStorage
= NULL
;
294 * Free the datacache pointer.
296 HeapFree(GetProcessHeap(), 0, ptrToDestroy
);
299 static DataCacheEntry
*DataCache_GetEntryForFormatEtc(DataCache
*This
, const FORMATETC
*formatetc
)
301 DataCacheEntry
*cache_entry
;
302 FORMATETC fmt
= *formatetc
;
304 if (fmt
.cfFormat
== CF_BITMAP
)
306 fmt
.cfFormat
= CF_DIB
;
307 fmt
.tymed
= TYMED_HGLOBAL
;
310 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
312 /* FIXME: also compare DVTARGETDEVICEs */
313 if ((!cache_entry
->fmtetc
.cfFormat
|| !fmt
.cfFormat
|| (fmt
.cfFormat
== cache_entry
->fmtetc
.cfFormat
)) &&
314 (fmt
.dwAspect
== cache_entry
->fmtetc
.dwAspect
) &&
315 (fmt
.lindex
== cache_entry
->fmtetc
.lindex
) &&
316 (!cache_entry
->fmtetc
.tymed
|| !fmt
.tymed
|| (fmt
.tymed
== cache_entry
->fmtetc
.tymed
)))
322 /* checks that the clipformat and tymed are valid and returns an error if they
323 * aren't and CACHE_S_NOTSUPPORTED if they are valid, but can't be rendered by
325 static HRESULT
check_valid_clipformat_and_tymed(CLIPFORMAT cfFormat
, DWORD tymed
)
327 if (!cfFormat
|| !tymed
||
328 (cfFormat
== CF_METAFILEPICT
&& tymed
== TYMED_MFPICT
) ||
329 (cfFormat
== CF_BITMAP
&& tymed
== TYMED_GDI
) ||
330 (cfFormat
== CF_DIB
&& tymed
== TYMED_HGLOBAL
) ||
331 (cfFormat
== CF_ENHMETAFILE
&& tymed
== TYMED_ENHMF
))
333 else if (tymed
== TYMED_HGLOBAL
)
334 return CACHE_S_FORMATETC_NOTSUPPORTED
;
337 WARN("invalid clipformat/tymed combination: %d/%d\n", cfFormat
, tymed
);
342 static BOOL
init_cache_entry(DataCacheEntry
*entry
, const FORMATETC
*fmt
, DWORD advf
,
347 hr
= copy_formatetc(&entry
->fmtetc
, fmt
);
348 if (FAILED(hr
)) return FALSE
;
351 entry
->stgmedium
.tymed
= TYMED_NULL
;
352 entry
->stgmedium
.pUnkForRelease
= NULL
;
353 entry
->stream
= NULL
;
354 entry
->stream_type
= no_stream
;
357 entry
->stream_number
= -1;
359 entry
->advise_flags
= advf
;
364 static HRESULT
DataCache_CreateEntry(DataCache
*This
, const FORMATETC
*formatetc
, DWORD advf
,
365 BOOL automatic
, DataCacheEntry
**cache_entry
)
368 DWORD id
= automatic
? 1 : This
->last_cache_id
;
369 DataCacheEntry
*entry
;
371 hr
= check_valid_clipformat_and_tymed(formatetc
->cfFormat
, formatetc
->tymed
);
374 if (hr
== CACHE_S_FORMATETC_NOTSUPPORTED
)
375 TRACE("creating unsupported format %d\n", formatetc
->cfFormat
);
377 entry
= HeapAlloc(GetProcessHeap(), 0, sizeof(*entry
));
379 return E_OUTOFMEMORY
;
381 if (!init_cache_entry(entry
, formatetc
, advf
, id
))
385 list_add_head(&This
->cache_list
, &entry
->entry
);
388 list_add_tail(&This
->cache_list
, &entry
->entry
);
389 This
->last_cache_id
++;
392 if (cache_entry
) *cache_entry
= entry
;
396 HeapFree(GetProcessHeap(), 0, entry
);
397 return E_OUTOFMEMORY
;
400 /************************************************************************
401 * DataCache_FireOnViewChange
403 * This method will fire an OnViewChange notification to the advise
404 * sink registered with the datacache.
406 * See IAdviseSink::OnViewChange for more details.
408 static void DataCache_FireOnViewChange(
413 TRACE("(%p, %x, %d)\n", this, aspect
, lindex
);
416 * The sink supplies a filter when it registers
417 * we make sure we only send the notifications when that
420 if ((this->sinkAspects
& aspect
) != 0)
422 if (this->sinkInterface
!= NULL
)
424 IAdviseSink_OnViewChange(this->sinkInterface
,
429 * Some sinks want to be unregistered automatically when
430 * the first notification goes out.
432 if ( (this->sinkAdviseFlag
& ADVF_ONLYONCE
) != 0)
434 IAdviseSink_Release(this->sinkInterface
);
436 this->sinkInterface
= NULL
;
437 this->sinkAspects
= 0;
438 this->sinkAdviseFlag
= 0;
444 /* Helper for DataCacheEntry_OpenPresStream */
445 static BOOL
DataCache_IsPresentationStream(const STATSTG
*elem
)
447 /* The presentation streams have names of the form "\002OlePresXXX",
448 * where XXX goes from 000 to 999. */
449 static const WCHAR OlePres
[] = { 2,'O','l','e','P','r','e','s' };
451 LPCWSTR name
= elem
->pwcsName
;
453 return (elem
->type
== STGTY_STREAM
)
454 && (strlenW(name
) == 11)
455 && (strncmpW(name
, OlePres
, 8) == 0)
456 && (name
[8] >= '0') && (name
[8] <= '9')
457 && (name
[9] >= '0') && (name
[9] <= '9')
458 && (name
[10] >= '0') && (name
[10] <= '9');
461 static HRESULT
read_clipformat(IStream
*stream
, CLIPFORMAT
*clipformat
)
469 hr
= IStream_Read(stream
, &length
, sizeof(length
), &read
);
470 if (hr
!= S_OK
|| read
!= sizeof(length
))
471 return DV_E_CLIPFORMAT
;
475 hr
= IStream_Read(stream
, &cf
, sizeof(cf
), &read
);
476 if (hr
!= S_OK
|| read
!= sizeof(cf
))
477 return DV_E_CLIPFORMAT
;
482 char *format_name
= HeapAlloc(GetProcessHeap(), 0, length
);
484 return E_OUTOFMEMORY
;
485 hr
= IStream_Read(stream
, format_name
, length
, &read
);
486 if (hr
!= S_OK
|| read
!= length
|| format_name
[length
- 1] != '\0')
488 HeapFree(GetProcessHeap(), 0, format_name
);
489 return DV_E_CLIPFORMAT
;
491 *clipformat
= RegisterClipboardFormatA(format_name
);
492 HeapFree(GetProcessHeap(), 0, format_name
);
497 static HRESULT
write_clipformat(IStream
*stream
, CLIPFORMAT clipformat
)
502 if (clipformat
< 0xc000)
505 length
= GetClipboardFormatNameA(clipformat
, NULL
, 0);
506 hr
= IStream_Write(stream
, &length
, sizeof(length
), NULL
);
509 if (clipformat
< 0xc000)
511 DWORD cf
= clipformat
;
512 hr
= IStream_Write(stream
, &cf
, sizeof(cf
), NULL
);
516 char *format_name
= HeapAlloc(GetProcessHeap(), 0, length
);
518 return E_OUTOFMEMORY
;
519 GetClipboardFormatNameA(clipformat
, format_name
, length
);
520 hr
= IStream_Write(stream
, format_name
, length
, NULL
);
521 HeapFree(GetProcessHeap(), 0, format_name
);
526 /************************************************************************
527 * DataCacheEntry_OpenPresStream
529 * This method will find the stream for the given presentation. It makes
530 * no attempt at fallback.
533 * this - Pointer to the DataCache object
534 * drawAspect - The aspect of the object that we wish to draw.
535 * pStm - A returned stream. It points to the beginning of the
536 * - presentation data, including the header.
539 * S_OK The requested stream has been opened.
540 * OLE_E_BLANK The requested stream could not be found.
541 * Quite a few others I'm too lazy to map correctly.
544 * Algorithm: Scan the elements of the presentation storage, looking
545 * for presentation streams. For each presentation stream,
546 * load the header and check to see if the aspect matches.
548 * If a fallback is desired, just opening the first presentation stream
551 static HRESULT
DataCacheEntry_OpenPresStream(DataCacheEntry
*cache_entry
, IStream
**ppStm
)
554 LARGE_INTEGER offset
;
556 if (cache_entry
->stream
)
558 /* Rewind the stream before returning it. */
561 hr
= IStream_Seek( cache_entry
->stream
, offset
, STREAM_SEEK_SET
, NULL
);
564 *ppStm
= cache_entry
->stream
;
565 IStream_AddRef( cache_entry
->stream
);
575 static HRESULT
load_mf_pict( DataCacheEntry
*cache_entry
, IStream
*stm
)
579 ULARGE_INTEGER current_pos
;
581 METAFILEPICT
*mfpict
;
583 PresentationDataHeader header
;
584 CLIPFORMAT clipformat
;
585 static const LARGE_INTEGER offset_zero
;
588 if (cache_entry
->stream_type
!= pres_stream
)
590 FIXME( "Unimplemented for stream type %d\n", cache_entry
->stream_type
);
594 hr
= IStream_Stat( stm
, &stat
, STATFLAG_NONAME
);
595 if (FAILED( hr
)) return hr
;
597 hr
= read_clipformat( stm
, &clipformat
);
598 if (FAILED( hr
)) return hr
;
600 hr
= IStream_Read( stm
, &header
, sizeof(header
), &read
);
601 if (hr
!= S_OK
|| read
!= sizeof(header
)) return E_FAIL
;
603 hr
= IStream_Seek( stm
, offset_zero
, STREAM_SEEK_CUR
, ¤t_pos
);
604 if (FAILED( hr
)) return hr
;
606 stat
.cbSize
.QuadPart
-= current_pos
.QuadPart
;
608 hmfpict
= GlobalAlloc( GMEM_MOVEABLE
, sizeof(METAFILEPICT
) );
609 if (!hmfpict
) return E_OUTOFMEMORY
;
610 mfpict
= GlobalLock( hmfpict
);
612 bits
= HeapAlloc( GetProcessHeap(), 0, stat
.cbSize
.u
.LowPart
);
615 GlobalFree( hmfpict
);
616 return E_OUTOFMEMORY
;
619 hr
= IStream_Read( stm
, bits
, stat
.cbSize
.u
.LowPart
, &read
);
620 if (hr
!= S_OK
|| read
!= stat
.cbSize
.u
.LowPart
) hr
= E_FAIL
;
624 /* FIXME: get this from the stream */
625 mfpict
->mm
= MM_ANISOTROPIC
;
626 mfpict
->xExt
= header
.dwObjectExtentX
;
627 mfpict
->yExt
= header
.dwObjectExtentY
;
628 mfpict
->hMF
= SetMetaFileBitsEx( stat
.cbSize
.u
.LowPart
, bits
);
633 GlobalUnlock( hmfpict
);
636 cache_entry
->data_cf
= cache_entry
->fmtetc
.cfFormat
;
637 cache_entry
->stgmedium
.tymed
= TYMED_MFPICT
;
638 cache_entry
->stgmedium
.u
.hMetaFilePict
= hmfpict
;
641 GlobalFree( hmfpict
);
643 HeapFree( GetProcessHeap(), 0, bits
);
648 static HRESULT
load_dib( DataCacheEntry
*cache_entry
, IStream
*stm
)
654 ULONG read
, info_size
, bi_size
;
655 BITMAPFILEHEADER file
;
656 BITMAPINFOHEADER
*info
;
658 if (cache_entry
->stream_type
!= contents_stream
)
660 FIXME( "Unimplemented for stream type %d\n", cache_entry
->stream_type
);
664 hr
= IStream_Stat( stm
, &stat
, STATFLAG_NONAME
);
665 if (FAILED( hr
)) return hr
;
667 if (stat
.cbSize
.QuadPart
< sizeof(file
) + sizeof(DWORD
)) return E_FAIL
;
668 hr
= IStream_Read( stm
, &file
, sizeof(file
), &read
);
669 if (hr
!= S_OK
|| read
!= sizeof(file
)) return E_FAIL
;
670 stat
.cbSize
.QuadPart
-= sizeof(file
);
672 hglobal
= GlobalAlloc( GMEM_MOVEABLE
, stat
.cbSize
.u
.LowPart
);
673 if (!hglobal
) return E_OUTOFMEMORY
;
674 dib
= GlobalLock( hglobal
);
676 hr
= IStream_Read( stm
, dib
, sizeof(DWORD
), &read
);
677 if (hr
!= S_OK
|| read
!= sizeof(DWORD
)) goto fail
;
678 bi_size
= *(DWORD
*)dib
;
679 if (stat
.cbSize
.QuadPart
< bi_size
) goto fail
;
681 hr
= IStream_Read( stm
, (char *)dib
+ sizeof(DWORD
), bi_size
- sizeof(DWORD
), &read
);
682 if (hr
!= S_OK
|| read
!= bi_size
- sizeof(DWORD
)) goto fail
;
684 info_size
= bitmap_info_size( dib
, DIB_RGB_COLORS
);
685 if (stat
.cbSize
.QuadPart
< info_size
) goto fail
;
686 if (info_size
> bi_size
)
688 hr
= IStream_Read( stm
, (char *)dib
+ bi_size
, info_size
- bi_size
, &read
);
689 if (hr
!= S_OK
|| read
!= info_size
- bi_size
) goto fail
;
691 stat
.cbSize
.QuadPart
-= info_size
;
697 skip
.QuadPart
= file
.bfOffBits
- sizeof(file
) - info_size
;
698 if (stat
.cbSize
.QuadPart
< skip
.QuadPart
) goto fail
;
699 hr
= IStream_Seek( stm
, skip
, STREAM_SEEK_CUR
, NULL
);
700 if (hr
!= S_OK
) goto fail
;
701 stat
.cbSize
.QuadPart
-= skip
.QuadPart
;
704 hr
= IStream_Read( stm
, (char *)dib
+ info_size
, stat
.cbSize
.u
.LowPart
, &read
);
705 if (hr
!= S_OK
|| read
!= stat
.cbSize
.QuadPart
) goto fail
;
707 if (bi_size
>= sizeof(*info
))
709 info
= (BITMAPINFOHEADER
*)dib
;
710 if (info
->biXPelsPerMeter
== 0 || info
->biYPelsPerMeter
== 0)
712 HDC hdc
= GetDC( 0 );
713 info
->biXPelsPerMeter
= MulDiv( GetDeviceCaps( hdc
, LOGPIXELSX
), 10000, 254 );
714 info
->biYPelsPerMeter
= MulDiv( GetDeviceCaps( hdc
, LOGPIXELSY
), 10000, 254 );
719 GlobalUnlock( hglobal
);
721 cache_entry
->data_cf
= cache_entry
->fmtetc
.cfFormat
;
722 cache_entry
->stgmedium
.tymed
= TYMED_HGLOBAL
;
723 cache_entry
->stgmedium
.u
.hGlobal
= hglobal
;
728 GlobalUnlock( hglobal
);
729 GlobalFree( hglobal
);
734 /************************************************************************
735 * DataCacheEntry_LoadData
737 * This method will read information for the requested presentation
738 * into the given structure.
741 * This - The entry to load the data from.
744 * This method returns a metafile handle if it is successful.
745 * it will return 0 if not.
747 static HRESULT
DataCacheEntry_LoadData(DataCacheEntry
*cache_entry
)
752 hr
= DataCacheEntry_OpenPresStream( cache_entry
, &stm
);
753 if (FAILED(hr
)) return hr
;
755 switch (cache_entry
->fmtetc
.cfFormat
)
757 case CF_METAFILEPICT
:
758 hr
= load_mf_pict( cache_entry
, stm
);
762 hr
= load_dib( cache_entry
, stm
);
766 FIXME( "Unimplemented clip format %x\n", cache_entry
->fmtetc
.cfFormat
);
770 IStream_Release( stm
);
774 static HRESULT
DataCacheEntry_CreateStream(DataCacheEntry
*cache_entry
,
775 IStorage
*storage
, IStream
**stream
)
777 WCHAR wszName
[] = {2,'O','l','e','P','r','e','s',
778 '0' + (cache_entry
->stream_number
/ 100) % 10,
779 '0' + (cache_entry
->stream_number
/ 10) % 10,
780 '0' + cache_entry
->stream_number
% 10, 0};
782 /* FIXME: cache the created stream in This? */
783 return IStorage_CreateStream(storage
, wszName
,
784 STGM_READWRITE
| STGM_SHARE_EXCLUSIVE
| STGM_CREATE
,
788 static HRESULT
DataCacheEntry_Save(DataCacheEntry
*cache_entry
, IStorage
*storage
,
791 PresentationDataHeader header
;
793 IStream
*pres_stream
;
796 TRACE("stream_number = %d, fmtetc = %s\n", cache_entry
->stream_number
, debugstr_formatetc(&cache_entry
->fmtetc
));
798 hr
= DataCacheEntry_CreateStream(cache_entry
, storage
, &pres_stream
);
802 hr
= write_clipformat(pres_stream
, cache_entry
->data_cf
);
806 if (cache_entry
->fmtetc
.ptd
)
807 FIXME("ptd not serialized\n");
809 header
.dvAspect
= cache_entry
->fmtetc
.dwAspect
;
810 header
.lindex
= cache_entry
->fmtetc
.lindex
;
811 header
.advf
= cache_entry
->advise_flags
;
813 header
.dwObjectExtentX
= 0;
814 header
.dwObjectExtentY
= 0;
818 switch (cache_entry
->data_cf
)
820 case CF_METAFILEPICT
:
822 if (cache_entry
->stgmedium
.tymed
!= TYMED_NULL
)
824 const METAFILEPICT
*mfpict
= GlobalLock(cache_entry
->stgmedium
.u
.hMetaFilePict
);
827 IStream_Release(pres_stream
);
828 return DV_E_STGMEDIUM
;
830 header
.dwObjectExtentX
= mfpict
->xExt
;
831 header
.dwObjectExtentY
= mfpict
->yExt
;
832 header
.dwSize
= GetMetaFileBitsEx(mfpict
->hMF
, 0, NULL
);
833 GlobalUnlock(cache_entry
->stgmedium
.u
.hMetaFilePict
);
844 hr
= IStream_Write(pres_stream
, &header
, sizeof(PresentationDataHeader
),
848 IStream_Release(pres_stream
);
853 switch (cache_entry
->data_cf
)
855 case CF_METAFILEPICT
:
857 if (cache_entry
->stgmedium
.tymed
!= TYMED_NULL
)
859 const METAFILEPICT
*mfpict
= GlobalLock(cache_entry
->stgmedium
.u
.hMetaFilePict
);
862 IStream_Release(pres_stream
);
863 return DV_E_STGMEDIUM
;
865 data
= HeapAlloc(GetProcessHeap(), 0, header
.dwSize
);
866 GetMetaFileBitsEx(mfpict
->hMF
, header
.dwSize
, data
);
867 GlobalUnlock(cache_entry
->stgmedium
.u
.hMetaFilePict
);
876 hr
= IStream_Write(pres_stream
, data
, header
.dwSize
, NULL
);
877 HeapFree(GetProcessHeap(), 0, data
);
879 IStream_Release(pres_stream
);
883 /* helper for copying STGMEDIUM of type bitmap, MF, EMF or HGLOBAL.
884 * does no checking of whether src_stgm has a supported tymed, so this should be
885 * done in the caller */
886 static HRESULT
copy_stg_medium(CLIPFORMAT cf
, STGMEDIUM
*dest_stgm
,
887 const STGMEDIUM
*src_stgm
)
889 if (src_stgm
->tymed
== TYMED_MFPICT
)
891 const METAFILEPICT
*src_mfpict
= GlobalLock(src_stgm
->u
.hMetaFilePict
);
892 METAFILEPICT
*dest_mfpict
;
895 return DV_E_STGMEDIUM
;
896 dest_stgm
->u
.hMetaFilePict
= GlobalAlloc(GMEM_MOVEABLE
, sizeof(METAFILEPICT
));
897 dest_mfpict
= GlobalLock(dest_stgm
->u
.hMetaFilePict
);
900 GlobalUnlock(src_stgm
->u
.hMetaFilePict
);
901 return E_OUTOFMEMORY
;
903 *dest_mfpict
= *src_mfpict
;
904 dest_mfpict
->hMF
= CopyMetaFileW(src_mfpict
->hMF
, NULL
);
905 GlobalUnlock(src_stgm
->u
.hMetaFilePict
);
906 GlobalUnlock(dest_stgm
->u
.hMetaFilePict
);
908 else if (src_stgm
->tymed
!= TYMED_NULL
)
910 dest_stgm
->u
.hGlobal
= OleDuplicateData(src_stgm
->u
.hGlobal
, cf
,
912 if (!dest_stgm
->u
.hGlobal
)
913 return E_OUTOFMEMORY
;
915 dest_stgm
->tymed
= src_stgm
->tymed
;
916 dest_stgm
->pUnkForRelease
= src_stgm
->pUnkForRelease
;
917 if (dest_stgm
->pUnkForRelease
)
918 IUnknown_AddRef(dest_stgm
->pUnkForRelease
);
922 static HGLOBAL
synthesize_dib( HBITMAP bm
)
924 HDC hdc
= GetDC( 0 );
925 BITMAPINFOHEADER header
;
930 memset( &header
, 0, sizeof(header
) );
931 header
.biSize
= sizeof(header
);
932 if (!GetDIBits( hdc
, bm
, 0, 0, NULL
, (BITMAPINFO
*)&header
, DIB_RGB_COLORS
)) goto done
;
934 header_size
= bitmap_info_size( (BITMAPINFO
*)&header
, DIB_RGB_COLORS
);
935 if (!(ret
= GlobalAlloc( GMEM_MOVEABLE
, header_size
+ header
.biSizeImage
))) goto done
;
936 bmi
= GlobalLock( ret
);
937 memset( bmi
, 0, header_size
);
938 memcpy( bmi
, &header
, header
.biSize
);
939 GetDIBits( hdc
, bm
, 0, abs(header
.biHeight
), (char *)bmi
+ header_size
, bmi
, DIB_RGB_COLORS
);
947 static HBITMAP
synthesize_bitmap( HGLOBAL dib
)
951 HDC hdc
= GetDC( 0 );
953 if ((bmi
= GlobalLock( dib
)))
955 /* FIXME: validate data size */
956 ret
= CreateDIBitmap( hdc
, &bmi
->bmiHeader
, CBM_INIT
,
957 (char *)bmi
+ bitmap_info_size( bmi
, DIB_RGB_COLORS
),
958 bmi
, DIB_RGB_COLORS
);
965 static HRESULT
DataCacheEntry_SetData(DataCacheEntry
*cache_entry
,
966 const FORMATETC
*formatetc
,
967 STGMEDIUM
*stgmedium
,
972 if ((!cache_entry
->fmtetc
.cfFormat
&& !formatetc
->cfFormat
) ||
973 (cache_entry
->fmtetc
.tymed
== TYMED_NULL
&& formatetc
->tymed
== TYMED_NULL
) ||
974 stgmedium
->tymed
== TYMED_NULL
)
976 WARN("invalid formatetc\n");
977 return DV_E_FORMATETC
;
980 cache_entry
->dirty
= TRUE
;
981 ReleaseStgMedium(&cache_entry
->stgmedium
);
982 cache_entry
->data_cf
= cache_entry
->fmtetc
.cfFormat
? cache_entry
->fmtetc
.cfFormat
: formatetc
->cfFormat
;
984 if (formatetc
->cfFormat
== CF_BITMAP
)
986 dib_copy
.tymed
= TYMED_HGLOBAL
;
987 dib_copy
.u
.hGlobal
= synthesize_dib( stgmedium
->u
.hBitmap
);
988 dib_copy
.pUnkForRelease
= NULL
;
989 if (fRelease
) ReleaseStgMedium(stgmedium
);
990 stgmedium
= &dib_copy
;
996 cache_entry
->stgmedium
= *stgmedium
;
1000 return copy_stg_medium(cache_entry
->data_cf
,
1001 &cache_entry
->stgmedium
, stgmedium
);
1004 static HRESULT
DataCacheEntry_GetData(DataCacheEntry
*cache_entry
, FORMATETC
*fmt
, STGMEDIUM
*stgmedium
)
1006 if (cache_entry
->stgmedium
.tymed
== TYMED_NULL
&& cache_entry
->stream
)
1008 HRESULT hr
= DataCacheEntry_LoadData(cache_entry
);
1012 if (cache_entry
->stgmedium
.tymed
== TYMED_NULL
)
1015 if (fmt
->cfFormat
== CF_BITMAP
)
1017 stgmedium
->tymed
= TYMED_GDI
;
1018 stgmedium
->u
.hBitmap
= synthesize_bitmap( cache_entry
->stgmedium
.u
.hGlobal
);
1019 stgmedium
->pUnkForRelease
= NULL
;
1022 return copy_stg_medium(cache_entry
->data_cf
, stgmedium
, &cache_entry
->stgmedium
);
1025 static inline HRESULT
DataCacheEntry_DiscardData(DataCacheEntry
*cache_entry
)
1027 ReleaseStgMedium(&cache_entry
->stgmedium
);
1028 cache_entry
->data_cf
= cache_entry
->fmtetc
.cfFormat
;
1032 static inline void DataCacheEntry_HandsOffStorage(DataCacheEntry
*cache_entry
)
1034 if (cache_entry
->stream
)
1036 IStream_Release(cache_entry
->stream
);
1037 cache_entry
->stream
= NULL
;
1041 static inline DWORD
tymed_from_cf( DWORD cf
)
1045 case CF_BITMAP
: return TYMED_GDI
;
1046 case CF_METAFILEPICT
: return TYMED_MFPICT
;
1047 case CF_ENHMETAFILE
: return TYMED_ENHMF
;
1049 default: return TYMED_HGLOBAL
;
1053 /****************************************************************
1054 * create_automatic_entry
1056 * Creates an appropriate cache entry for one of the CLSID_Picture_
1057 * classes. The connection id of the entry is one. Any pre-existing
1058 * automatic entry is re-assigned a new connection id, and moved to
1059 * the end of the list.
1061 static HRESULT
create_automatic_entry(DataCache
*cache
, const CLSID
*clsid
)
1063 static const struct data
1069 { &CLSID_Picture_Dib
, { CF_DIB
, 0, DVASPECT_CONTENT
, -1, TYMED_HGLOBAL
} },
1070 { &CLSID_Picture_Metafile
, { CF_METAFILEPICT
, 0, DVASPECT_CONTENT
, -1, TYMED_MFPICT
} },
1071 { &CLSID_Picture_EnhMetafile
, { CF_ENHMETAFILE
, 0, DVASPECT_CONTENT
, -1, TYMED_ENHMF
} },
1074 const struct data
*ptr
= data
;
1076 DataCacheEntry
*entry
;
1078 if (IsEqualCLSID( &cache
->clsid
, clsid
)) return S_OK
;
1080 /* move and reassign any pre-existing automatic entry */
1081 if ((head
= list_head( &cache
->cache_list
)))
1083 entry
= LIST_ENTRY( head
, DataCacheEntry
, entry
);
1086 list_remove( &entry
->entry
);
1087 entry
->id
= cache
->last_cache_id
++;
1088 list_add_tail( &cache
->cache_list
, &entry
->entry
);
1094 if (IsEqualCLSID( clsid
, ptr
->clsid
))
1095 return DataCache_CreateEntry( cache
, &ptr
->fmt
, 0, TRUE
, NULL
);
1101 /*********************************************************
1102 * Method implementation for the non delegating IUnknown
1103 * part of the DataCache class.
1106 /************************************************************************
1107 * DataCache_NDIUnknown_QueryInterface (IUnknown)
1109 * This version of QueryInterface will not delegate its implementation
1110 * to the outer unknown.
1112 static HRESULT WINAPI
DataCache_NDIUnknown_QueryInterface(
1117 DataCache
*this = impl_from_IUnknown(iface
);
1120 return E_INVALIDARG
;
1124 if (IsEqualIID(&IID_IUnknown
, riid
))
1128 else if (IsEqualIID(&IID_IDataObject
, riid
))
1130 *ppvObject
= &this->IDataObject_iface
;
1132 else if ( IsEqualIID(&IID_IPersistStorage
, riid
) ||
1133 IsEqualIID(&IID_IPersist
, riid
) )
1135 *ppvObject
= &this->IPersistStorage_iface
;
1137 else if ( IsEqualIID(&IID_IViewObject
, riid
) ||
1138 IsEqualIID(&IID_IViewObject2
, riid
) )
1140 *ppvObject
= &this->IViewObject2_iface
;
1142 else if ( IsEqualIID(&IID_IOleCache
, riid
) ||
1143 IsEqualIID(&IID_IOleCache2
, riid
) )
1145 *ppvObject
= &this->IOleCache2_iface
;
1147 else if ( IsEqualIID(&IID_IOleCacheControl
, riid
) )
1149 *ppvObject
= &this->IOleCacheControl_iface
;
1152 if ((*ppvObject
)==0)
1154 WARN( "() : asking for unsupported interface %s\n", debugstr_guid(riid
));
1155 return E_NOINTERFACE
;
1158 IUnknown_AddRef((IUnknown
*)*ppvObject
);
1163 /************************************************************************
1164 * DataCache_NDIUnknown_AddRef (IUnknown)
1166 * This version of QueryInterface will not delegate its implementation
1167 * to the outer unknown.
1169 static ULONG WINAPI
DataCache_NDIUnknown_AddRef(
1172 DataCache
*this = impl_from_IUnknown(iface
);
1173 return InterlockedIncrement(&this->ref
);
1176 /************************************************************************
1177 * DataCache_NDIUnknown_Release (IUnknown)
1179 * This version of QueryInterface will not delegate its implementation
1180 * to the outer unknown.
1182 static ULONG WINAPI
DataCache_NDIUnknown_Release(
1185 DataCache
*this = impl_from_IUnknown(iface
);
1188 ref
= InterlockedDecrement(&this->ref
);
1190 if (ref
== 0) DataCache_Destroy(this);
1195 /*********************************************************
1196 * Method implementation for the IDataObject
1197 * part of the DataCache class.
1200 /************************************************************************
1201 * DataCache_IDataObject_QueryInterface (IUnknown)
1203 static HRESULT WINAPI
DataCache_IDataObject_QueryInterface(
1208 DataCache
*this = impl_from_IDataObject(iface
);
1210 return IUnknown_QueryInterface(this->outer_unk
, riid
, ppvObject
);
1213 /************************************************************************
1214 * DataCache_IDataObject_AddRef (IUnknown)
1216 static ULONG WINAPI
DataCache_IDataObject_AddRef(
1219 DataCache
*this = impl_from_IDataObject(iface
);
1221 return IUnknown_AddRef(this->outer_unk
);
1224 /************************************************************************
1225 * DataCache_IDataObject_Release (IUnknown)
1227 static ULONG WINAPI
DataCache_IDataObject_Release(
1230 DataCache
*this = impl_from_IDataObject(iface
);
1232 return IUnknown_Release(this->outer_unk
);
1235 /************************************************************************
1238 * Get Data from a source dataobject using format pformatetcIn->cfFormat
1240 static HRESULT WINAPI
DataCache_GetData(
1242 LPFORMATETC pformatetcIn
,
1245 DataCache
*This
= impl_from_IDataObject(iface
);
1246 DataCacheEntry
*cache_entry
;
1248 TRACE("(%p, %s, %p)\n", iface
, debugstr_formatetc(pformatetcIn
), pmedium
);
1250 memset(pmedium
, 0, sizeof(*pmedium
));
1252 cache_entry
= DataCache_GetEntryForFormatEtc(This
, pformatetcIn
);
1256 return DataCacheEntry_GetData(cache_entry
, pformatetcIn
, pmedium
);
1259 static HRESULT WINAPI
DataCache_GetDataHere(
1261 LPFORMATETC pformatetc
,
1268 static HRESULT WINAPI
DataCache_QueryGetData( IDataObject
*iface
, FORMATETC
*fmt
)
1270 DataCache
*This
= impl_from_IDataObject( iface
);
1271 DataCacheEntry
*cache_entry
;
1273 TRACE( "(%p)->(%s)\n", iface
, debugstr_formatetc( fmt
) );
1274 cache_entry
= DataCache_GetEntryForFormatEtc( This
, fmt
);
1276 return cache_entry
? S_OK
: S_FALSE
;
1279 /************************************************************************
1280 * DataCache_EnumFormatEtc (IDataObject)
1282 * The data cache doesn't implement this method.
1284 static HRESULT WINAPI
DataCache_GetCanonicalFormatEtc(
1286 LPFORMATETC pformatectIn
,
1287 LPFORMATETC pformatetcOut
)
1293 /************************************************************************
1294 * DataCache_IDataObject_SetData (IDataObject)
1296 * This method is delegated to the IOleCache2 implementation.
1298 static HRESULT WINAPI
DataCache_IDataObject_SetData(
1300 LPFORMATETC pformatetc
,
1304 IOleCache2
* oleCache
= NULL
;
1307 TRACE("(%p, %p, %p, %d)\n", iface
, pformatetc
, pmedium
, fRelease
);
1309 hres
= IDataObject_QueryInterface(iface
, &IID_IOleCache2
, (void**)&oleCache
);
1312 return E_UNEXPECTED
;
1314 hres
= IOleCache2_SetData(oleCache
, pformatetc
, pmedium
, fRelease
);
1316 IOleCache2_Release(oleCache
);
1321 /************************************************************************
1322 * DataCache_EnumFormatEtc (IDataObject)
1324 * The data cache doesn't implement this method.
1326 static HRESULT WINAPI
DataCache_EnumFormatEtc(
1329 IEnumFORMATETC
** ppenumFormatEtc
)
1335 /************************************************************************
1336 * DataCache_DAdvise (IDataObject)
1338 * The data cache doesn't support connections.
1340 static HRESULT WINAPI
DataCache_DAdvise(
1342 FORMATETC
* pformatetc
,
1344 IAdviseSink
* pAdvSink
,
1345 DWORD
* pdwConnection
)
1348 return OLE_E_ADVISENOTSUPPORTED
;
1351 /************************************************************************
1352 * DataCache_DUnadvise (IDataObject)
1354 * The data cache doesn't support connections.
1356 static HRESULT WINAPI
DataCache_DUnadvise(
1361 return OLE_E_NOCONNECTION
;
1364 /************************************************************************
1365 * DataCache_EnumDAdvise (IDataObject)
1367 * The data cache doesn't support connections.
1369 static HRESULT WINAPI
DataCache_EnumDAdvise(
1371 IEnumSTATDATA
** ppenumAdvise
)
1374 return OLE_E_ADVISENOTSUPPORTED
;
1377 /*********************************************************
1378 * Method implementation for the IDataObject
1379 * part of the DataCache class.
1382 /************************************************************************
1383 * DataCache_IPersistStorage_QueryInterface (IUnknown)
1385 static HRESULT WINAPI
DataCache_IPersistStorage_QueryInterface(
1386 IPersistStorage
* iface
,
1390 DataCache
*this = impl_from_IPersistStorage(iface
);
1392 return IUnknown_QueryInterface(this->outer_unk
, riid
, ppvObject
);
1395 /************************************************************************
1396 * DataCache_IPersistStorage_AddRef (IUnknown)
1398 static ULONG WINAPI
DataCache_IPersistStorage_AddRef(
1399 IPersistStorage
* iface
)
1401 DataCache
*this = impl_from_IPersistStorage(iface
);
1403 return IUnknown_AddRef(this->outer_unk
);
1406 /************************************************************************
1407 * DataCache_IPersistStorage_Release (IUnknown)
1409 static ULONG WINAPI
DataCache_IPersistStorage_Release(
1410 IPersistStorage
* iface
)
1412 DataCache
*this = impl_from_IPersistStorage(iface
);
1414 return IUnknown_Release(this->outer_unk
);
1417 /************************************************************************
1418 * DataCache_GetClassID (IPersistStorage)
1421 static HRESULT WINAPI
DataCache_GetClassID(IPersistStorage
*iface
, CLSID
*clsid
)
1423 DataCache
*This
= impl_from_IPersistStorage( iface
);
1425 TRACE( "(%p, %p) returning %s\n", iface
, clsid
, debugstr_guid(&This
->clsid
) );
1426 *clsid
= This
->clsid
;
1431 /************************************************************************
1432 * DataCache_IsDirty (IPersistStorage)
1434 static HRESULT WINAPI
DataCache_IsDirty(
1435 IPersistStorage
* iface
)
1437 DataCache
*This
= impl_from_IPersistStorage(iface
);
1438 DataCacheEntry
*cache_entry
;
1440 TRACE("(%p)\n", iface
);
1445 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
1446 if (cache_entry
->dirty
)
1452 /************************************************************************
1453 * DataCache_InitNew (IPersistStorage)
1455 * The data cache implementation of IPersistStorage_InitNew simply stores
1456 * the storage pointer.
1458 static HRESULT WINAPI
DataCache_InitNew(
1459 IPersistStorage
* iface
,
1462 DataCache
*This
= impl_from_IPersistStorage(iface
);
1466 TRACE("(%p, %p)\n", iface
, pStg
);
1468 if (This
->presentationStorage
!= NULL
)
1469 return CO_E_ALREADYINITIALIZED
;
1471 This
->presentationStorage
= pStg
;
1473 IStorage_AddRef(This
->presentationStorage
);
1475 ReadClassStg( pStg
, &clsid
);
1476 hr
= create_automatic_entry( This
, &clsid
);
1479 IStorage_Release( pStg
);
1480 This
->presentationStorage
= NULL
;
1483 This
->clsid
= clsid
;
1489 static HRESULT
add_cache_entry( DataCache
*This
, const FORMATETC
*fmt
, DWORD advf
, IStream
*stm
,
1490 enum stream_type type
)
1492 DataCacheEntry
*cache_entry
;
1495 TRACE( "loading entry with formatetc: %s\n", debugstr_formatetc( fmt
) );
1497 cache_entry
= DataCache_GetEntryForFormatEtc( This
, fmt
);
1499 hr
= DataCache_CreateEntry( This
, fmt
, advf
, FALSE
, &cache_entry
);
1500 if (SUCCEEDED( hr
))
1502 DataCacheEntry_DiscardData( cache_entry
);
1503 if (cache_entry
->stream
) IStream_Release( cache_entry
->stream
);
1504 cache_entry
->stream
= stm
;
1505 IStream_AddRef( stm
);
1506 cache_entry
->stream_type
= type
;
1507 cache_entry
->dirty
= FALSE
;
1512 static HRESULT
parse_pres_streams( DataCache
*This
, IStorage
*stg
)
1515 IEnumSTATSTG
*stat_enum
;
1518 PresentationDataHeader header
;
1520 CLIPFORMAT clipformat
;
1523 hr
= IStorage_EnumElements( stg
, 0, NULL
, 0, &stat_enum
);
1524 if (FAILED( hr
)) return hr
;
1526 while ((hr
= IEnumSTATSTG_Next( stat_enum
, 1, &stat
, NULL
)) == S_OK
)
1528 if (DataCache_IsPresentationStream( &stat
))
1530 hr
= IStorage_OpenStream( stg
, stat
.pwcsName
, NULL
, STGM_READ
| STGM_SHARE_EXCLUSIVE
,
1532 if (SUCCEEDED( hr
))
1534 hr
= read_clipformat( stm
, &clipformat
);
1537 hr
= IStream_Read( stm
, &header
, sizeof(header
), &actual_read
);
1539 if (hr
== S_OK
&& actual_read
== sizeof(header
))
1541 fmtetc
.cfFormat
= clipformat
;
1542 fmtetc
.ptd
= NULL
; /* FIXME */
1543 fmtetc
.dwAspect
= header
.dvAspect
;
1544 fmtetc
.lindex
= header
.lindex
;
1545 fmtetc
.tymed
= tymed_from_cf( clipformat
);
1547 add_cache_entry( This
, &fmtetc
, header
.advf
, stm
, pres_stream
);
1549 IStream_Release( stm
);
1552 CoTaskMemFree( stat
.pwcsName
);
1554 IEnumSTATSTG_Release( stat_enum
);
1559 static const FORMATETC static_dib_fmt
= { CF_DIB
, NULL
, DVASPECT_CONTENT
, -1, TYMED_HGLOBAL
};
1561 static HRESULT
parse_contents_stream( DataCache
*This
, IStorage
*stg
, IStream
*stm
)
1565 const FORMATETC
*fmt
;
1567 hr
= IStorage_Stat( stg
, &stat
, STATFLAG_NONAME
);
1568 if (FAILED( hr
)) return hr
;
1570 if (IsEqualCLSID( &stat
.clsid
, &CLSID_Picture_Dib
))
1571 fmt
= &static_dib_fmt
;
1574 FIXME("unsupported format %s\n", debugstr_guid( &stat
.clsid
));
1578 return add_cache_entry( This
, fmt
, 0, stm
, contents_stream
);
1581 static const WCHAR CONTENTS
[] = {'C','O','N','T','E','N','T','S',0};
1583 /************************************************************************
1584 * DataCache_Load (IPersistStorage)
1586 * The data cache implementation of IPersistStorage_Load doesn't
1587 * actually load anything. Instead, it holds on to the storage pointer
1588 * and it will load the presentation information when the
1589 * IDataObject_GetData or IViewObject2_Draw methods are called.
1591 static HRESULT WINAPI
DataCache_Load( IPersistStorage
*iface
, IStorage
*pStg
)
1593 DataCache
*This
= impl_from_IPersistStorage(iface
);
1597 DataCacheEntry
*entry
, *cursor2
;
1599 TRACE("(%p, %p)\n", iface
, pStg
);
1601 IPersistStorage_HandsOffStorage( iface
);
1603 LIST_FOR_EACH_ENTRY_SAFE( entry
, cursor2
, &This
->cache_list
, DataCacheEntry
, entry
)
1604 DataCacheEntry_Destroy( This
, entry
);
1606 ReadClassStg( pStg
, &clsid
);
1607 hr
= create_automatic_entry( This
, &clsid
);
1608 if (FAILED( hr
)) return hr
;
1610 This
->clsid
= clsid
;
1612 hr
= IStorage_OpenStream( pStg
, CONTENTS
, NULL
, STGM_READ
| STGM_SHARE_EXCLUSIVE
,
1614 if (SUCCEEDED( hr
))
1616 hr
= parse_contents_stream( This
, pStg
, stm
);
1617 IStream_Release( stm
);
1621 hr
= parse_pres_streams( This
, pStg
);
1623 if (SUCCEEDED( hr
))
1625 This
->dirty
= FALSE
;
1626 This
->presentationStorage
= pStg
;
1627 IStorage_AddRef( This
->presentationStorage
);
1633 /************************************************************************
1634 * DataCache_Save (IPersistStorage)
1636 * Until we actually connect to a running object and retrieve new
1637 * information to it, we never have to save anything. However, it is
1638 * our responsibility to copy the information when saving to a new
1641 static HRESULT WINAPI
DataCache_Save(
1642 IPersistStorage
* iface
,
1646 DataCache
*This
= impl_from_IPersistStorage(iface
);
1647 DataCacheEntry
*cache_entry
;
1650 unsigned short stream_number
= 0;
1652 TRACE("(%p, %p, %d)\n", iface
, pStg
, fSameAsLoad
);
1654 dirty
= This
->dirty
;
1657 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
1659 dirty
= cache_entry
->dirty
;
1665 /* this is a shortcut if nothing changed */
1666 if (!dirty
&& !fSameAsLoad
&& This
->presentationStorage
)
1668 return IStorage_CopyTo(This
->presentationStorage
, 0, NULL
, NULL
, pStg
);
1671 /* assign stream numbers to the cache entries */
1672 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
1674 if (cache_entry
->stream_number
!= stream_number
)
1676 cache_entry
->dirty
= TRUE
; /* needs to be written out again */
1677 cache_entry
->stream_number
= stream_number
;
1682 /* write out the cache entries */
1683 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
1685 if (!fSameAsLoad
|| cache_entry
->dirty
)
1687 hr
= DataCacheEntry_Save(cache_entry
, pStg
, fSameAsLoad
);
1691 cache_entry
->dirty
= FALSE
;
1695 This
->dirty
= FALSE
;
1699 /************************************************************************
1700 * DataCache_SaveCompleted (IPersistStorage)
1702 * This method is called to tell the cache to release the storage
1703 * pointer it's currently holding.
1705 static HRESULT WINAPI
DataCache_SaveCompleted(
1706 IPersistStorage
* iface
,
1709 TRACE("(%p, %p)\n", iface
, pStgNew
);
1713 IPersistStorage_HandsOffStorage(iface
);
1715 DataCache_Load(iface
, pStgNew
);
1721 /************************************************************************
1722 * DataCache_HandsOffStorage (IPersistStorage)
1724 * This method is called to tell the cache to release the storage
1725 * pointer it's currently holding.
1727 static HRESULT WINAPI
DataCache_HandsOffStorage(
1728 IPersistStorage
* iface
)
1730 DataCache
*this = impl_from_IPersistStorage(iface
);
1731 DataCacheEntry
*cache_entry
;
1733 TRACE("(%p)\n", iface
);
1735 if (this->presentationStorage
!= NULL
)
1737 IStorage_Release(this->presentationStorage
);
1738 this->presentationStorage
= NULL
;
1741 LIST_FOR_EACH_ENTRY(cache_entry
, &this->cache_list
, DataCacheEntry
, entry
)
1742 DataCacheEntry_HandsOffStorage(cache_entry
);
1747 /*********************************************************
1748 * Method implementation for the IViewObject2
1749 * part of the DataCache class.
1752 /************************************************************************
1753 * DataCache_IViewObject2_QueryInterface (IUnknown)
1755 static HRESULT WINAPI
DataCache_IViewObject2_QueryInterface(
1756 IViewObject2
* iface
,
1760 DataCache
*this = impl_from_IViewObject2(iface
);
1762 return IUnknown_QueryInterface(this->outer_unk
, riid
, ppvObject
);
1765 /************************************************************************
1766 * DataCache_IViewObject2_AddRef (IUnknown)
1768 static ULONG WINAPI
DataCache_IViewObject2_AddRef(
1769 IViewObject2
* iface
)
1771 DataCache
*this = impl_from_IViewObject2(iface
);
1773 return IUnknown_AddRef(this->outer_unk
);
1776 /************************************************************************
1777 * DataCache_IViewObject2_Release (IUnknown)
1779 static ULONG WINAPI
DataCache_IViewObject2_Release(
1780 IViewObject2
* iface
)
1782 DataCache
*this = impl_from_IViewObject2(iface
);
1784 return IUnknown_Release(this->outer_unk
);
1787 /************************************************************************
1788 * DataCache_Draw (IViewObject2)
1790 * This method will draw the cached representation of the object
1791 * to the given device context.
1793 static HRESULT WINAPI
DataCache_Draw(
1794 IViewObject2
* iface
,
1798 DVTARGETDEVICE
* ptd
,
1801 LPCRECTL lprcBounds
,
1802 LPCRECTL lprcWBounds
,
1803 BOOL (CALLBACK
*pfnContinue
)(ULONG_PTR dwContinue
),
1804 ULONG_PTR dwContinue
)
1806 DataCache
*This
= impl_from_IViewObject2(iface
);
1808 DataCacheEntry
*cache_entry
;
1810 TRACE("(%p, %x, %d, %p, %p, %p, %p, %p, %p, %lx)\n",
1822 if (lprcBounds
==NULL
)
1823 return E_INVALIDARG
;
1825 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
1827 /* FIXME: compare ptd too */
1828 if ((cache_entry
->fmtetc
.dwAspect
!= dwDrawAspect
) ||
1829 (cache_entry
->fmtetc
.lindex
!= lindex
))
1832 /* if the data hasn't been loaded yet, do it now */
1833 if ((cache_entry
->stgmedium
.tymed
== TYMED_NULL
) && cache_entry
->stream
)
1835 hres
= DataCacheEntry_LoadData(cache_entry
);
1841 if (cache_entry
->stgmedium
.tymed
== TYMED_NULL
)
1844 if (pfnContinue
&& !pfnContinue(dwContinue
)) return E_ABORT
;
1846 switch (cache_entry
->data_cf
)
1848 case CF_METAFILEPICT
:
1851 * We have to be careful not to modify the state of the
1856 SIZE oldViewportExt
;
1857 POINT oldViewportOrg
;
1858 METAFILEPICT
*mfpict
;
1860 if ((cache_entry
->stgmedium
.tymed
!= TYMED_MFPICT
) ||
1861 !((mfpict
= GlobalLock(cache_entry
->stgmedium
.u
.hMetaFilePict
))))
1864 prevMapMode
= SetMapMode(hdcDraw
, mfpict
->mm
);
1866 SetWindowExtEx(hdcDraw
,
1871 SetViewportExtEx(hdcDraw
,
1872 lprcBounds
->right
- lprcBounds
->left
,
1873 lprcBounds
->bottom
- lprcBounds
->top
,
1876 SetViewportOrgEx(hdcDraw
,
1881 PlayMetaFile(hdcDraw
, mfpict
->hMF
);
1883 SetWindowExtEx(hdcDraw
,
1888 SetViewportExtEx(hdcDraw
,
1893 SetViewportOrgEx(hdcDraw
,
1898 SetMapMode(hdcDraw
, prevMapMode
);
1900 GlobalUnlock(cache_entry
->stgmedium
.u
.hMetaFilePict
);
1909 if ((cache_entry
->stgmedium
.tymed
!= TYMED_HGLOBAL
) ||
1910 !((info
= GlobalLock( cache_entry
->stgmedium
.u
.hGlobal
))))
1913 bits
= (BYTE
*) info
+ bitmap_info_size( info
, DIB_RGB_COLORS
);
1914 StretchDIBits( hdcDraw
, lprcBounds
->left
, lprcBounds
->top
,
1915 lprcBounds
->right
- lprcBounds
->left
, lprcBounds
->bottom
- lprcBounds
->top
,
1916 0, 0, info
->bmiHeader
.biWidth
, info
->bmiHeader
.biHeight
,
1917 bits
, info
, DIB_RGB_COLORS
, SRCCOPY
);
1919 GlobalUnlock( cache_entry
->stgmedium
.u
.hGlobal
);
1925 WARN("no data could be found to be drawn\n");
1930 static HRESULT WINAPI
DataCache_GetColorSet(
1931 IViewObject2
* iface
,
1935 DVTARGETDEVICE
* ptd
,
1936 HDC hicTargetDevice
,
1937 LOGPALETTE
** ppColorSet
)
1943 static HRESULT WINAPI
DataCache_Freeze(
1944 IViewObject2
* iface
,
1954 static HRESULT WINAPI
DataCache_Unfreeze(
1955 IViewObject2
* iface
,
1962 /************************************************************************
1963 * DataCache_SetAdvise (IViewObject2)
1965 * This sets-up an advisory sink with the data cache. When the object's
1966 * view changes, this sink is called.
1968 static HRESULT WINAPI
DataCache_SetAdvise(
1969 IViewObject2
* iface
,
1972 IAdviseSink
* pAdvSink
)
1974 DataCache
*this = impl_from_IViewObject2(iface
);
1976 TRACE("(%p, %x, %x, %p)\n", iface
, aspects
, advf
, pAdvSink
);
1979 * A call to this function removes the previous sink
1981 if (this->sinkInterface
!= NULL
)
1983 IAdviseSink_Release(this->sinkInterface
);
1984 this->sinkInterface
= NULL
;
1985 this->sinkAspects
= 0;
1986 this->sinkAdviseFlag
= 0;
1990 * Now, setup the new one.
1994 this->sinkInterface
= pAdvSink
;
1995 this->sinkAspects
= aspects
;
1996 this->sinkAdviseFlag
= advf
;
1998 IAdviseSink_AddRef(this->sinkInterface
);
2002 * When the ADVF_PRIMEFIRST flag is set, we have to advise the
2005 if (advf
& ADVF_PRIMEFIRST
)
2007 DataCache_FireOnViewChange(this, aspects
, -1);
2013 /************************************************************************
2014 * DataCache_GetAdvise (IViewObject2)
2016 * This method queries the current state of the advise sink
2017 * installed on the data cache.
2019 static HRESULT WINAPI
DataCache_GetAdvise(
2020 IViewObject2
* iface
,
2023 IAdviseSink
** ppAdvSink
)
2025 DataCache
*this = impl_from_IViewObject2(iface
);
2027 TRACE("(%p, %p, %p, %p)\n", iface
, pAspects
, pAdvf
, ppAdvSink
);
2030 * Just copy all the requested values.
2033 *pAspects
= this->sinkAspects
;
2036 *pAdvf
= this->sinkAdviseFlag
;
2038 if (ppAdvSink
!=NULL
)
2040 if (this->sinkInterface
!= NULL
)
2041 IAdviseSink_QueryInterface(this->sinkInterface
,
2044 else *ppAdvSink
= NULL
;
2050 /************************************************************************
2051 * DataCache_GetExtent (IViewObject2)
2053 * This method retrieves the "natural" size of this cached object.
2055 static HRESULT WINAPI
DataCache_GetExtent(
2056 IViewObject2
* iface
,
2059 DVTARGETDEVICE
* ptd
,
2062 DataCache
*This
= impl_from_IViewObject2(iface
);
2063 HRESULT hres
= E_FAIL
;
2064 DataCacheEntry
*cache_entry
;
2066 TRACE("(%p, %x, %d, %p, %p)\n",
2067 iface
, dwDrawAspect
, lindex
, ptd
, lpsizel
);
2076 FIXME("Unimplemented flag lindex = %d\n", lindex
);
2079 * Right now, we support only the callback from
2080 * the default handler.
2083 FIXME("Unimplemented ptd = %p\n", ptd
);
2085 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2087 /* FIXME: compare ptd too */
2088 if ((cache_entry
->fmtetc
.dwAspect
!= dwDrawAspect
) ||
2089 (cache_entry
->fmtetc
.lindex
!= lindex
))
2092 /* if the data hasn't been loaded yet, do it now */
2093 if ((cache_entry
->stgmedium
.tymed
== TYMED_NULL
) && cache_entry
->stream
)
2095 hres
= DataCacheEntry_LoadData(cache_entry
);
2101 if (cache_entry
->stgmedium
.tymed
== TYMED_NULL
)
2105 switch (cache_entry
->data_cf
)
2107 case CF_METAFILEPICT
:
2109 METAFILEPICT
*mfpict
;
2111 if ((cache_entry
->stgmedium
.tymed
!= TYMED_MFPICT
) ||
2112 !((mfpict
= GlobalLock(cache_entry
->stgmedium
.u
.hMetaFilePict
))))
2115 lpsizel
->cx
= mfpict
->xExt
;
2116 lpsizel
->cy
= mfpict
->yExt
;
2118 GlobalUnlock(cache_entry
->stgmedium
.u
.hMetaFilePict
);
2124 BITMAPINFOHEADER
*info
;
2125 LONG x_pels_m
, y_pels_m
;
2128 if ((cache_entry
->stgmedium
.tymed
!= TYMED_HGLOBAL
) ||
2129 !((info
= GlobalLock( cache_entry
->stgmedium
.u
.hGlobal
))))
2132 x_pels_m
= info
->biXPelsPerMeter
;
2133 y_pels_m
= info
->biYPelsPerMeter
;
2135 /* Size in units of 0.01mm (ie. MM_HIMETRIC) */
2136 if (x_pels_m
!= 0 && y_pels_m
!= 0)
2138 lpsizel
->cx
= info
->biWidth
* 100000 / x_pels_m
;
2139 lpsizel
->cy
= info
->biHeight
* 100000 / y_pels_m
;
2143 HDC hdc
= GetDC( 0 );
2144 lpsizel
->cx
= info
->biWidth
* 2540 / GetDeviceCaps( hdc
, LOGPIXELSX
);
2145 lpsizel
->cy
= info
->biHeight
* 2540 / GetDeviceCaps( hdc
, LOGPIXELSY
);
2147 ReleaseDC( 0, hdc
);
2150 GlobalUnlock( cache_entry
->stgmedium
.u
.hGlobal
);
2157 WARN("no data could be found to get the extents from\n");
2160 * This method returns OLE_E_BLANK when it fails.
2166 /*********************************************************
2167 * Method implementation for the IOleCache2
2168 * part of the DataCache class.
2171 /************************************************************************
2172 * DataCache_IOleCache2_QueryInterface (IUnknown)
2174 static HRESULT WINAPI
DataCache_IOleCache2_QueryInterface(
2179 DataCache
*this = impl_from_IOleCache2(iface
);
2181 return IUnknown_QueryInterface(this->outer_unk
, riid
, ppvObject
);
2184 /************************************************************************
2185 * DataCache_IOleCache2_AddRef (IUnknown)
2187 static ULONG WINAPI
DataCache_IOleCache2_AddRef(
2190 DataCache
*this = impl_from_IOleCache2(iface
);
2192 return IUnknown_AddRef(this->outer_unk
);
2195 /************************************************************************
2196 * DataCache_IOleCache2_Release (IUnknown)
2198 static ULONG WINAPI
DataCache_IOleCache2_Release(
2201 DataCache
*this = impl_from_IOleCache2(iface
);
2203 return IUnknown_Release(this->outer_unk
);
2206 /*****************************************************************************
2209 * Set up the sink connection to the running object.
2211 static HRESULT
setup_sink(DataCache
*This
, DataCacheEntry
*cache_entry
)
2213 HRESULT hr
= S_FALSE
;
2216 /* Clear the ADVFCACHE_* bits. Native also sets the two highest bits for some reason. */
2217 flags
= cache_entry
->advise_flags
& ~(ADVFCACHE_NOHANDLER
| ADVFCACHE_FORCEBUILTIN
| ADVFCACHE_ONSAVE
);
2219 if(This
->running_object
)
2220 if(!(flags
& ADVF_NODATA
))
2221 hr
= IDataObject_DAdvise(This
->running_object
, &cache_entry
->fmtetc
, flags
,
2222 &This
->IAdviseSink_iface
, &cache_entry
->sink_id
);
2226 static HRESULT WINAPI
DataCache_Cache(
2228 FORMATETC
* pformatetc
,
2230 DWORD
* pdwConnection
)
2232 DataCache
*This
= impl_from_IOleCache2(iface
);
2233 DataCacheEntry
*cache_entry
;
2237 TRACE("(%p, 0x%x, %p)\n", pformatetc
, advf
, pdwConnection
);
2239 if (!pformatetc
|| !pdwConnection
)
2240 return E_INVALIDARG
;
2242 TRACE("pformatetc = %s\n", debugstr_formatetc(pformatetc
));
2244 fmt_cpy
= *pformatetc
; /* No need for a deep copy */
2245 if (fmt_cpy
.cfFormat
== CF_BITMAP
&& fmt_cpy
.tymed
== TYMED_GDI
)
2247 fmt_cpy
.cfFormat
= CF_DIB
;
2248 fmt_cpy
.tymed
= TYMED_HGLOBAL
;
2253 cache_entry
= DataCache_GetEntryForFormatEtc(This
, &fmt_cpy
);
2256 TRACE("found an existing cache entry\n");
2257 *pdwConnection
= cache_entry
->id
;
2258 return CACHE_S_SAMECACHE
;
2261 hr
= DataCache_CreateEntry(This
, &fmt_cpy
, advf
, FALSE
, &cache_entry
);
2265 *pdwConnection
= cache_entry
->id
;
2266 setup_sink(This
, cache_entry
);
2272 static HRESULT WINAPI
DataCache_Uncache(
2276 DataCache
*This
= impl_from_IOleCache2(iface
);
2277 DataCacheEntry
*cache_entry
;
2279 TRACE("(%d)\n", dwConnection
);
2281 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2282 if (cache_entry
->id
== dwConnection
)
2284 DataCacheEntry_Destroy(This
, cache_entry
);
2288 WARN("no connection found for %d\n", dwConnection
);
2290 return OLE_E_NOCONNECTION
;
2293 static HRESULT WINAPI
DataCache_EnumCache(IOleCache2
*iface
,
2294 IEnumSTATDATA
**enum_stat
)
2296 DataCache
*This
= impl_from_IOleCache2( iface
);
2297 DataCacheEntry
*cache_entry
;
2298 int i
= 0, count
= 0;
2302 TRACE( "(%p, %p)\n", This
, enum_stat
);
2304 LIST_FOR_EACH_ENTRY( cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2307 if (cache_entry
->fmtetc
.cfFormat
== CF_DIB
)
2311 data
= CoTaskMemAlloc( count
* sizeof(*data
) );
2312 if (!data
) return E_OUTOFMEMORY
;
2314 LIST_FOR_EACH_ENTRY( cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2316 if (i
== count
) goto fail
;
2317 hr
= copy_formatetc( &data
[i
].formatetc
, &cache_entry
->fmtetc
);
2318 if (FAILED(hr
)) goto fail
;
2319 data
[i
].advf
= cache_entry
->advise_flags
;
2320 data
[i
].pAdvSink
= NULL
;
2321 data
[i
].dwConnection
= cache_entry
->id
;
2324 if (cache_entry
->fmtetc
.cfFormat
== CF_DIB
)
2326 if (i
== count
) goto fail
;
2327 hr
= copy_formatetc( &data
[i
].formatetc
, &cache_entry
->fmtetc
);
2328 if (FAILED(hr
)) goto fail
;
2329 data
[i
].formatetc
.cfFormat
= CF_BITMAP
;
2330 data
[i
].formatetc
.tymed
= TYMED_GDI
;
2331 data
[i
].advf
= cache_entry
->advise_flags
;
2332 data
[i
].pAdvSink
= NULL
;
2333 data
[i
].dwConnection
= cache_entry
->id
;
2338 hr
= EnumSTATDATA_Construct( NULL
, 0, i
, data
, FALSE
, enum_stat
);
2339 if (SUCCEEDED(hr
)) return hr
;
2342 while (i
--) CoTaskMemFree( data
[i
].formatetc
.ptd
);
2343 CoTaskMemFree( data
);
2347 static HRESULT WINAPI
DataCache_InitCache(
2349 IDataObject
* pDataObject
)
2355 static HRESULT WINAPI
DataCache_IOleCache2_SetData(
2357 FORMATETC
* pformatetc
,
2361 DataCache
*This
= impl_from_IOleCache2(iface
);
2362 DataCacheEntry
*cache_entry
;
2365 TRACE("(%p, %p, %s)\n", pformatetc
, pmedium
, fRelease
? "TRUE" : "FALSE");
2366 TRACE("formatetc = %s\n", debugstr_formatetc(pformatetc
));
2368 cache_entry
= DataCache_GetEntryForFormatEtc(This
, pformatetc
);
2371 hr
= DataCacheEntry_SetData(cache_entry
, pformatetc
, pmedium
, fRelease
);
2374 DataCache_FireOnViewChange(This
, cache_entry
->fmtetc
.dwAspect
,
2375 cache_entry
->fmtetc
.lindex
);
2379 WARN("cache entry not found\n");
2384 static HRESULT WINAPI
DataCache_UpdateCache(
2386 LPDATAOBJECT pDataObject
,
2390 FIXME("(%p, 0x%x, %p): stub\n", pDataObject
, grfUpdf
, pReserved
);
2394 static HRESULT WINAPI
DataCache_DiscardCache(
2396 DWORD dwDiscardOptions
)
2398 DataCache
*This
= impl_from_IOleCache2(iface
);
2399 DataCacheEntry
*cache_entry
;
2402 TRACE("(%d)\n", dwDiscardOptions
);
2404 if (dwDiscardOptions
== DISCARDCACHE_SAVEIFDIRTY
)
2405 hr
= DataCache_Save(&This
->IPersistStorage_iface
, This
->presentationStorage
, TRUE
);
2407 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2409 hr
= DataCacheEntry_DiscardData(cache_entry
);
2418 /*********************************************************
2419 * Method implementation for the IOleCacheControl
2420 * part of the DataCache class.
2423 /************************************************************************
2424 * DataCache_IOleCacheControl_QueryInterface (IUnknown)
2426 static HRESULT WINAPI
DataCache_IOleCacheControl_QueryInterface(
2427 IOleCacheControl
* iface
,
2431 DataCache
*this = impl_from_IOleCacheControl(iface
);
2433 return IUnknown_QueryInterface(this->outer_unk
, riid
, ppvObject
);
2436 /************************************************************************
2437 * DataCache_IOleCacheControl_AddRef (IUnknown)
2439 static ULONG WINAPI
DataCache_IOleCacheControl_AddRef(
2440 IOleCacheControl
* iface
)
2442 DataCache
*this = impl_from_IOleCacheControl(iface
);
2444 return IUnknown_AddRef(this->outer_unk
);
2447 /************************************************************************
2448 * DataCache_IOleCacheControl_Release (IUnknown)
2450 static ULONG WINAPI
DataCache_IOleCacheControl_Release(
2451 IOleCacheControl
* iface
)
2453 DataCache
*this = impl_from_IOleCacheControl(iface
);
2455 return IUnknown_Release(this->outer_unk
);
2458 /************************************************************************
2459 * DataCache_OnRun (IOleCacheControl)
2461 static HRESULT WINAPI
DataCache_OnRun(IOleCacheControl
* iface
, IDataObject
*data_obj
)
2463 DataCache
*This
= impl_from_IOleCacheControl(iface
);
2464 DataCacheEntry
*cache_entry
;
2466 TRACE("(%p)->(%p)\n", iface
, data_obj
);
2468 if(This
->running_object
) return S_OK
;
2470 /* No reference is taken on the data object */
2471 This
->running_object
= data_obj
;
2473 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2475 setup_sink(This
, cache_entry
);
2481 /************************************************************************
2482 * DataCache_OnStop (IOleCacheControl)
2484 static HRESULT WINAPI
DataCache_OnStop(IOleCacheControl
* iface
)
2486 DataCache
*This
= impl_from_IOleCacheControl(iface
);
2487 DataCacheEntry
*cache_entry
;
2489 TRACE("(%p)\n", iface
);
2491 if(!This
->running_object
) return S_OK
;
2493 LIST_FOR_EACH_ENTRY(cache_entry
, &This
->cache_list
, DataCacheEntry
, entry
)
2495 if(cache_entry
->sink_id
)
2497 IDataObject_DUnadvise(This
->running_object
, cache_entry
->sink_id
);
2498 cache_entry
->sink_id
= 0;
2502 /* No ref taken in OnRun, so no Release call here */
2503 This
->running_object
= NULL
;
2507 /************************************************************************
2508 * IAdviseSink methods.
2509 * This behaves as an internal object to the data cache. QI'ing its ptr doesn't
2510 * give access to the cache's other interfaces. We don't maintain a ref count,
2511 * the object exists as long as the cache is around.
2513 static HRESULT WINAPI
DataCache_IAdviseSink_QueryInterface(IAdviseSink
*iface
, REFIID iid
, void **obj
)
2516 if (IsEqualIID(&IID_IUnknown
, iid
) ||
2517 IsEqualIID(&IID_IAdviseSink
, iid
))
2524 IAdviseSink_AddRef(iface
);
2527 return E_NOINTERFACE
;
2530 static ULONG WINAPI
DataCache_IAdviseSink_AddRef(IAdviseSink
*iface
)
2535 static ULONG WINAPI
DataCache_IAdviseSink_Release(IAdviseSink
*iface
)
2540 static void WINAPI
DataCache_OnDataChange(IAdviseSink
*iface
, FORMATETC
*fmt
, STGMEDIUM
*med
)
2542 DataCache
*This
= impl_from_IAdviseSink(iface
);
2543 TRACE("(%p)->(%s, %p)\n", This
, debugstr_formatetc(fmt
), med
);
2544 IOleCache2_SetData(&This
->IOleCache2_iface
, fmt
, med
, FALSE
);
2547 static void WINAPI
DataCache_OnViewChange(IAdviseSink
*iface
, DWORD aspect
, LONG index
)
2552 static void WINAPI
DataCache_OnRename(IAdviseSink
*iface
, IMoniker
*mk
)
2557 static void WINAPI
DataCache_OnSave(IAdviseSink
*iface
)
2562 static void WINAPI
DataCache_OnClose(IAdviseSink
*iface
)
2568 * Virtual function tables for the DataCache class.
2570 static const IUnknownVtbl DataCache_NDIUnknown_VTable
=
2572 DataCache_NDIUnknown_QueryInterface
,
2573 DataCache_NDIUnknown_AddRef
,
2574 DataCache_NDIUnknown_Release
2577 static const IDataObjectVtbl DataCache_IDataObject_VTable
=
2579 DataCache_IDataObject_QueryInterface
,
2580 DataCache_IDataObject_AddRef
,
2581 DataCache_IDataObject_Release
,
2583 DataCache_GetDataHere
,
2584 DataCache_QueryGetData
,
2585 DataCache_GetCanonicalFormatEtc
,
2586 DataCache_IDataObject_SetData
,
2587 DataCache_EnumFormatEtc
,
2589 DataCache_DUnadvise
,
2590 DataCache_EnumDAdvise
2593 static const IPersistStorageVtbl DataCache_IPersistStorage_VTable
=
2595 DataCache_IPersistStorage_QueryInterface
,
2596 DataCache_IPersistStorage_AddRef
,
2597 DataCache_IPersistStorage_Release
,
2598 DataCache_GetClassID
,
2603 DataCache_SaveCompleted
,
2604 DataCache_HandsOffStorage
2607 static const IViewObject2Vtbl DataCache_IViewObject2_VTable
=
2609 DataCache_IViewObject2_QueryInterface
,
2610 DataCache_IViewObject2_AddRef
,
2611 DataCache_IViewObject2_Release
,
2613 DataCache_GetColorSet
,
2616 DataCache_SetAdvise
,
2617 DataCache_GetAdvise
,
2621 static const IOleCache2Vtbl DataCache_IOleCache2_VTable
=
2623 DataCache_IOleCache2_QueryInterface
,
2624 DataCache_IOleCache2_AddRef
,
2625 DataCache_IOleCache2_Release
,
2628 DataCache_EnumCache
,
2629 DataCache_InitCache
,
2630 DataCache_IOleCache2_SetData
,
2631 DataCache_UpdateCache
,
2632 DataCache_DiscardCache
2635 static const IOleCacheControlVtbl DataCache_IOleCacheControl_VTable
=
2637 DataCache_IOleCacheControl_QueryInterface
,
2638 DataCache_IOleCacheControl_AddRef
,
2639 DataCache_IOleCacheControl_Release
,
2644 static const IAdviseSinkVtbl DataCache_IAdviseSink_VTable
=
2646 DataCache_IAdviseSink_QueryInterface
,
2647 DataCache_IAdviseSink_AddRef
,
2648 DataCache_IAdviseSink_Release
,
2649 DataCache_OnDataChange
,
2650 DataCache_OnViewChange
,
2656 /*********************************************************
2657 * Method implementation for DataCache class.
2659 static DataCache
* DataCache_Construct(
2661 LPUNKNOWN pUnkOuter
)
2663 DataCache
* newObject
= 0;
2666 * Allocate space for the object.
2668 newObject
= HeapAlloc(GetProcessHeap(), 0, sizeof(DataCache
));
2674 * Initialize the virtual function table.
2676 newObject
->IDataObject_iface
.lpVtbl
= &DataCache_IDataObject_VTable
;
2677 newObject
->IUnknown_inner
.lpVtbl
= &DataCache_NDIUnknown_VTable
;
2678 newObject
->IPersistStorage_iface
.lpVtbl
= &DataCache_IPersistStorage_VTable
;
2679 newObject
->IViewObject2_iface
.lpVtbl
= &DataCache_IViewObject2_VTable
;
2680 newObject
->IOleCache2_iface
.lpVtbl
= &DataCache_IOleCache2_VTable
;
2681 newObject
->IOleCacheControl_iface
.lpVtbl
= &DataCache_IOleCacheControl_VTable
;
2682 newObject
->IAdviseSink_iface
.lpVtbl
= &DataCache_IAdviseSink_VTable
;
2683 newObject
->outer_unk
= pUnkOuter
? pUnkOuter
: &newObject
->IUnknown_inner
;
2687 * Initialize the other members of the structure.
2689 newObject
->sinkAspects
= 0;
2690 newObject
->sinkAdviseFlag
= 0;
2691 newObject
->sinkInterface
= 0;
2692 newObject
->clsid
= CLSID_NULL
;
2693 newObject
->presentationStorage
= NULL
;
2694 list_init(&newObject
->cache_list
);
2695 newObject
->last_cache_id
= 2;
2696 newObject
->dirty
= FALSE
;
2697 newObject
->running_object
= NULL
;
2699 create_automatic_entry( newObject
, clsid
);
2700 newObject
->clsid
= *clsid
;
2705 /******************************************************************************
2706 * CreateDataCache [OLE32.@]
2708 * Creates a data cache to allow an object to render one or more of its views,
2709 * whether running or not.
2712 * pUnkOuter [I] Outer unknown for the object.
2714 * riid [I] IID of interface to return.
2715 * ppvObj [O] Address where the data cache object will be stored on return.
2719 * Failure: HRESULT code.
2722 * The following interfaces are supported by the returned data cache object:
2723 * IOleCache, IOleCache2, IOleCacheControl, IPersistStorage, IDataObject,
2724 * IViewObject and IViewObject2.
2726 HRESULT WINAPI
CreateDataCache(
2727 LPUNKNOWN pUnkOuter
,
2732 DataCache
* newCache
= NULL
;
2735 TRACE("(%s, %p, %s, %p)\n", debugstr_guid(rclsid
), pUnkOuter
, debugstr_guid(riid
), ppvObj
);
2746 * If this cache is constructed for aggregation, make sure
2747 * the caller is requesting the IUnknown interface.
2748 * This is necessary because it's the only time the non-delegating
2749 * IUnknown pointer can be returned to the outside.
2751 if ( pUnkOuter
&& !IsEqualIID(&IID_IUnknown
, riid
) )
2752 return E_INVALIDARG
;
2755 * Try to construct a new instance of the class.
2757 newCache
= DataCache_Construct(rclsid
,
2761 return E_OUTOFMEMORY
;
2763 hr
= IUnknown_QueryInterface(&newCache
->IUnknown_inner
, riid
, ppvObj
);
2764 IUnknown_Release(&newCache
->IUnknown_inner
);