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ole32: Use a helper function to access the enum format implementation.

This commit is contained in:
Huw Davies 2009-03-26 15:42:13 +00:00 committed by Alexandre Julliard
parent 5c8985002f
commit d93688a721
1 changed files with 33 additions and 42 deletions
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75
dlls/ole32/clipboard.c
View File

@ -105,32 +105,6 @@ static inline ole_clipbrd *impl_from_IDataObject(IDataObject *iface)
return (ole_clipbrd*)((char*)iface - FIELD_OFFSET(ole_clipbrd, lpvtbl));
}
/****************************************************************************
* IEnumFORMATETC implementation
* DO NOT add any members before the VTables declaration!
*/
typedef struct
{
/* IEnumFORMATETC VTable */
const IEnumFORMATETCVtbl *lpVtbl;
/* IEnumFORMATETC fields */
UINT posFmt; /* current enumerator position */
UINT countFmt; /* number of EnumFORMATETC's in array */
LPFORMATETC pFmt; /* array of EnumFORMATETC's */
/*
* Reference count of this object
*/
LONG ref;
/*
* IUnknown implementation of the parent data object.
*/
IUnknown* pUnkDataObj;
} IEnumFORMATETCImpl;
typedef struct PresentationDataHeader
{
BYTE unknown1[28];
@ -177,6 +151,28 @@ typedef struct
* the OLE clipboard's IDataObject.
*---------------------------------------------------------------------*/
typedef struct enum_fmtetc
{
const IEnumFORMATETCVtbl *lpVtbl;
LONG ref;
UINT posFmt; /* current enumerator position */
UINT countFmt; /* number of EnumFORMATETC's in array */
LPFORMATETC pFmt; /* array of EnumFORMATETC's */
/*
* IUnknown implementation of the parent data object.
*/
IUnknown* pUnkDataObj;
} enum_fmtetc;
static inline enum_fmtetc *impl_from_IEnumFORMATETC(IEnumFORMATETC *iface)
{
return (enum_fmtetc*)((char*)iface - FIELD_OFFSET(enum_fmtetc, lpVtbl));
}
/************************************************************************
* OLEClipbrd_IEnumFORMATETC_QueryInterface (IUnknown)
*
@ -185,21 +181,16 @@ typedef struct
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_QueryInterface
(LPENUMFORMATETC iface, REFIID riid, LPVOID* ppvObj)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
/*
* Since enumerators are separate objects from the parent data object
* we only need to support the IUnknown and IEnumFORMATETC interfaces
*/
TRACE("(%p)->(IID: %s, %p)\n", This, debugstr_guid(riid), ppvObj);
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IEnumFORMATETC))
{
*ppvObj = This;
*ppvObj = iface;
}
if(*ppvObj)
@ -224,7 +215,7 @@ static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_QueryInterface
*/
static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_AddRef(LPENUMFORMATETC iface)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->(count=%u)\n",This, This->ref);
if (This->pUnkDataObj)
@ -240,7 +231,7 @@ static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_AddRef(LPENUMFORMATETC iface)
*/
static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_Release(LPENUMFORMATETC iface)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
ULONG ref;
TRACE("(%p)->(count=%u)\n",This, This->ref);
@ -266,7 +257,7 @@ static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_Release(LPENUMFORMATETC iface)
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Next
(LPENUMFORMATETC iface, ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
UINT cfetch;
HRESULT hres = S_FALSE;
@ -304,7 +295,7 @@ static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Next
*/
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Skip(LPENUMFORMATETC iface, ULONG celt)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->(num=%u)\n", This, celt);
This->posFmt += celt;
@ -323,7 +314,7 @@ static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Skip(LPENUMFORMATETC iface, ULON
*/
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Reset(LPENUMFORMATETC iface)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->()\n", This);
This->posFmt = 0;
@ -341,7 +332,7 @@ static LPENUMFORMATETC OLEClipbrd_IEnumFORMATETC_Construct(UINT cfmt, const FORM
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Clone
(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum)
{
IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
enum_fmtetc *This = impl_from_IEnumFORMATETC(iface);
HRESULT hr = S_OK;
TRACE("(%p)->(ppenum=%p)\n", This, ppenum);
@ -381,10 +372,10 @@ static const IEnumFORMATETCVtbl efvt =
static LPENUMFORMATETC OLEClipbrd_IEnumFORMATETC_Construct(UINT cfmt, const FORMATETC afmt[],
LPUNKNOWN pUnkDataObj)
{
IEnumFORMATETCImpl* ef;
enum_fmtetc* ef;
DWORD size=cfmt * sizeof(FORMATETC);
ef = HeapAlloc(GetProcessHeap(), 0, sizeof(IEnumFORMATETCImpl));
ef = HeapAlloc(GetProcessHeap(), 0, sizeof(*ef));
if (!ef)
return NULL;