2 * Implementation of IEnumPins Interface
4 * Copyright 2003 Robert Shearman
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "quartz_private.h"
23 #include "wine/debug.h"
25 WINE_DEFAULT_DEBUG_CHANNEL(quartz
);
27 typedef struct IEnumPinsImpl
29 const IEnumPinsVtbl
* lpVtbl
;
31 ENUMPINDETAILS enumPinDetails
;
35 static const struct IEnumPinsVtbl IEnumPinsImpl_Vtbl
;
37 HRESULT
IEnumPinsImpl_Construct(const ENUMPINDETAILS
* pDetails
, IEnumPins
** ppEnum
)
39 IEnumPinsImpl
* pEnumPins
= CoTaskMemAlloc(sizeof(IEnumPinsImpl
));
45 pEnumPins
->lpVtbl
= &IEnumPinsImpl_Vtbl
;
46 pEnumPins
->refCount
= 1;
47 pEnumPins
->uIndex
= 0;
48 CopyMemory(&pEnumPins
->enumPinDetails
, pDetails
, sizeof(ENUMPINDETAILS
));
49 *ppEnum
= (IEnumPins
*)(&pEnumPins
->lpVtbl
);
53 static HRESULT WINAPI
IEnumPinsImpl_QueryInterface(IEnumPins
* iface
, REFIID riid
, LPVOID
* ppv
)
55 TRACE("(%s, %p)\n", qzdebugstr_guid(riid
), ppv
);
59 if (IsEqualIID(riid
, &IID_IUnknown
))
61 else if (IsEqualIID(riid
, &IID_IEnumPins
))
66 IUnknown_AddRef((IUnknown
*)(*ppv
));
70 FIXME("No interface for %s!\n", qzdebugstr_guid(riid
));
75 static ULONG WINAPI
IEnumPinsImpl_AddRef(IEnumPins
* iface
)
77 ICOM_THIS(IEnumPinsImpl
, iface
);
81 return ++This
->refCount
;
84 static ULONG WINAPI
IEnumPinsImpl_Release(IEnumPins
* iface
)
86 ICOM_THIS(IEnumPinsImpl
, iface
);
90 if (!--This
->refCount
)
96 return This
->refCount
;
99 static HRESULT WINAPI
IEnumPinsImpl_Next(IEnumPins
* iface
, ULONG cPins
, IPin
** ppPins
, ULONG
* pcFetched
)
102 ICOM_THIS(IEnumPinsImpl
, iface
);
104 cFetched
= min(This
->enumPinDetails
.cPins
, This
->uIndex
+ cPins
) - This
->uIndex
;
106 TRACE("(%lu, %p, %p)\n", cPins
, ppPins
, pcFetched
);
112 *ppPins
= This
->enumPinDetails
.ppPins
[This
->uIndex
];
113 for (i
= This
->uIndex
; i
< This
->uIndex
+ cFetched
; i
++)
114 IPin_AddRef(This
->enumPinDetails
.ppPins
[i
]);
117 if ((cPins
!= 1) || pcFetched
)
118 *pcFetched
= cFetched
;
120 This
->uIndex
+= cFetched
;
122 if (cFetched
!= cPins
)
127 static HRESULT WINAPI
IEnumPinsImpl_Skip(IEnumPins
* iface
, ULONG cPins
)
129 ICOM_THIS(IEnumPinsImpl
, iface
);
131 TRACE("(%lu)\n", cPins
);
133 if (This
->uIndex
+ cPins
< This
->enumPinDetails
.cPins
)
135 This
->uIndex
+= cPins
;
141 static HRESULT WINAPI
IEnumPinsImpl_Reset(IEnumPins
* iface
)
143 ICOM_THIS(IEnumPinsImpl
, iface
);
145 TRACE("IEnumPinsImpl::Reset()\n");
151 static HRESULT WINAPI
IEnumPinsImpl_Clone(IEnumPins
* iface
, IEnumPins
** ppEnum
)
154 ICOM_THIS(IEnumPinsImpl
, iface
);
156 TRACE("(%p)\n", ppEnum
);
158 hr
= IEnumPinsImpl_Construct(&This
->enumPinDetails
, ppEnum
);
161 return IEnumPins_Skip(*ppEnum
, This
->uIndex
);
164 static const IEnumPinsVtbl IEnumPinsImpl_Vtbl
=
166 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
167 IEnumPinsImpl_QueryInterface
,
168 IEnumPinsImpl_AddRef
,
169 IEnumPinsImpl_Release
,