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Diffstat (limited to 'libraries/ecore/src/lib/ecore_win32/ecore_win32_dnd_enumformatetc.cpp')
-rw-r--r--libraries/ecore/src/lib/ecore_win32/ecore_win32_dnd_enumformatetc.cpp157
1 files changed, 0 insertions, 157 deletions
diff --git a/libraries/ecore/src/lib/ecore_win32/ecore_win32_dnd_enumformatetc.cpp b/libraries/ecore/src/lib/ecore_win32/ecore_win32_dnd_enumformatetc.cpp
deleted file mode 100644
index a3858bc..0000000
--- a/libraries/ecore/src/lib/ecore_win32/ecore_win32_dnd_enumformatetc.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
1
2#include <ole2.h>
3
4#include "ecore_win32_dnd_enumformatetc.h"
5
6
7// structors
8
9CEnumFormatEtc::CEnumFormatEtc(FORMATETC *format_etc, int formats_num)
10 : ref_count_(1)
11 , index_(0)
12 , formats_num_(formats_num)
13 , format_etc_(new FORMATETC[formats_num])
14{
15 // make a new copy of each FORMATETC structure
16 for (unsigned int i = 0; i < formats_num_; i++)
17 {
18 DeepCopyFormatEtc(&format_etc_[i], &format_etc[i]);
19 }
20}
21
22CEnumFormatEtc::~CEnumFormatEtc()
23{
24 if (format_etc_)
25 {
26 // first free any DVTARGETDEVICE structures
27 for (ULONG i = 0; i < formats_num_; i++)
28 {
29 if (format_etc_[i].ptd)
30 CoTaskMemFree(format_etc_[i].ptd);
31 }
32
33 // now free the main array
34 delete[] format_etc_;
35 }
36}
37
38// IUnknown
39
40ULONG __stdcall CEnumFormatEtc::AddRef(void)
41{
42 // increment object reference count
43 return InterlockedIncrement(&ref_count_);
44}
45
46ULONG __stdcall CEnumFormatEtc::Release(void)
47{
48 // decrement object reference count
49 LONG count = InterlockedDecrement(&ref_count_);
50
51 if (count == 0)
52 {
53 delete this;
54 return 0;
55 }
56 else
57 {
58 return count;
59 }
60}
61
62HRESULT __stdcall CEnumFormatEtc::QueryInterface(REFIID iid, void **ppvObject)
63{
64 // check to see what interface has been requested
65 if ((iid == IID_IEnumFORMATETC) || (iid == IID_IUnknown))
66 {
67 AddRef();
68 *ppvObject = this;
69 return S_OK;
70 }
71 else
72 {
73 *ppvObject = 0;
74 return E_NOINTERFACE;
75 }
76}
77
78// IEnumFormatEtc
79
80HRESULT CEnumFormatEtc::Reset(void)
81{
82 index_ = 0;
83 return S_OK;
84}
85
86HRESULT CEnumFormatEtc::Skip(ULONG celt)
87{
88 index_ += celt;
89 return (index_ <= formats_num_) ? S_OK : S_FALSE;
90}
91
92HRESULT CEnumFormatEtc::Clone(IEnumFORMATETC **ppEnumFormatEtc)
93{
94 HRESULT hResult;
95
96 // make a duplicate enumerator
97 hResult = CreateEnumFormatEtc(formats_num_, format_etc_, ppEnumFormatEtc);
98
99 if (hResult == S_OK)
100 {
101 // manually set the index state
102 ((CEnumFormatEtc *)*ppEnumFormatEtc)->index_ = index_;
103 }
104
105 return hResult;
106}
107
108HRESULT CEnumFormatEtc::Next(ULONG celt, FORMATETC *pFormatEtc, ULONG *pceltFetched)
109{
110 ULONG copied = 0;
111
112 // validate arguments
113 if ((celt == 0) || (pFormatEtc == 0))
114 return E_INVALIDARG;
115
116 // copy the FORMATETC structures into the caller's buffer
117 while (index_ < formats_num_ && copied < celt)
118 {
119 DeepCopyFormatEtc(&pFormatEtc[copied], &format_etc_[index_]);
120 copied++;
121 index_++;
122 }
123
124 // store result
125 if (pceltFetched != 0)
126 *pceltFetched = copied;
127
128 // did we copy all that was requested?
129 return (copied == celt) ? S_OK : S_FALSE;
130}
131
132// external functions
133
134void DeepCopyFormatEtc(FORMATETC *dest, FORMATETC *source)
135{
136 // copy the source FORMATETC into dest
137 *dest = *source;
138
139 if (source->ptd)
140 {
141 // allocate memory for the DVTARGETDEVICE if necessary
142 dest->ptd = (DVTARGETDEVICE*)CoTaskMemAlloc(sizeof(DVTARGETDEVICE));
143
144 // copy the contents of the source DVTARGETDEVICE into dest->ptd
145 *(dest->ptd) = *(source->ptd);
146 }
147}
148
149HRESULT CreateEnumFormatEtc(UINT cfmt, FORMATETC *afmt, IEnumFORMATETC **ppEnumFormatEtc)
150{
151 if((cfmt == 0) || (afmt == 0) || (ppEnumFormatEtc == 0))
152 return E_INVALIDARG;
153
154 *ppEnumFormatEtc = new CEnumFormatEtc(afmt, cfmt);
155
156 return (*ppEnumFormatEtc) ? S_OK : E_OUTOFMEMORY;
157}