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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_shell.hxx"
30 #include "internal/global.hxx"
31 #include "internal/columninfo.hxx"
32 #include "internal/fileextensions.hxx"
33 #include "internal/metainforeader.hxx"
34 #include "internal/utilities.hxx"
35 #include "internal/config.hxx"
36 
37 #include <malloc.h>
38 
39 //----------------------------
40 //
41 //----------------------------
42 
43 namespace /* private */
44 {
45 	SHCOLUMNINFO ColumnInfoTable[] =
46 	{
47 		{{PSGUID_SUMMARYINFORMATION, PIDSI_TITLE},    VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Title",    L"Title"},
48 		{{PSGUID_SUMMARYINFORMATION, PIDSI_AUTHOR},   VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Author",   L"Author"},
49 		{{PSGUID_SUMMARYINFORMATION, PIDSI_SUBJECT},  VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Subject",  L"Subject"},
50 		{{PSGUID_SUMMARYINFORMATION, PIDSI_KEYWORDS}, VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Keywords", L"Keywords"},
51 		{{PSGUID_SUMMARYINFORMATION, PIDSI_COMMENTS}, VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Comments", L"Comments"},
52 		{{PSGUID_SUMMARYINFORMATION, PIDSI_PAGECOUNT},VT_BSTR, LVCFMT_LEFT, 30, SHCOLSTATE_TYPE_STR, L"Pagecount", L"Pagecount"}
53 	};
54 
55 	size_t ColumnInfoTableSize = sizeof(ColumnInfoTable)/sizeof(ColumnInfoTable[0]);
56 }
57 
58 //----------------------------
59 //
60 //----------------------------
61 
62 CColumnInfo::CColumnInfo(long RefCnt) :
63 	m_RefCnt(RefCnt)
64 {
65 	InterlockedIncrement(&g_DllRefCnt);
66 }
67 
68 //----------------------------
69 //
70 //----------------------------
71 
72 CColumnInfo::~CColumnInfo()
73 {
74 	InterlockedDecrement(&g_DllRefCnt);
75 }
76 
77 //-----------------------------
78 // IUnknown methods
79 //-----------------------------
80 
81 HRESULT STDMETHODCALLTYPE CColumnInfo::QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject)
82 {
83 	*ppvObject = 0;
84 
85 	if (IID_IUnknown == riid || IID_IColumnProvider == riid)
86 	{
87 		IUnknown* pUnk = static_cast<IColumnProvider*>(this);
88 		pUnk->AddRef();
89 		*ppvObject = pUnk;
90 		return S_OK;
91 	}
92 
93 	return E_NOINTERFACE;
94 }
95 
96 //----------------------------
97 //
98 //----------------------------
99 
100 ULONG STDMETHODCALLTYPE CColumnInfo::AddRef(void)
101 {
102 	return InterlockedIncrement(&m_RefCnt);
103 }
104 
105 //----------------------------
106 //
107 //----------------------------
108 
109 ULONG STDMETHODCALLTYPE CColumnInfo::Release( void)
110 {
111 	long refcnt = InterlockedDecrement(&m_RefCnt);
112 
113 	if (0 == m_RefCnt)
114 		delete this;
115 
116 	return refcnt;
117 }
118 
119 //-----------------------------
120 // IColumnProvider
121 //-----------------------------
122 
123 HRESULT STDMETHODCALLTYPE CColumnInfo::Initialize(LPCSHCOLUMNINIT /*psci*/)
124 {
125 	return S_OK;
126 }
127 
128 //-----------------------------
129 // Register all columns we support
130 //-----------------------------
131 
132 HRESULT STDMETHODCALLTYPE CColumnInfo::GetColumnInfo(DWORD dwIndex, SHCOLUMNINFO *psci)
133 {
134 	if (dwIndex >= ColumnInfoTableSize)
135 		return S_FALSE;
136 
137 	//  Return information on each column we support. Return S_FALSE
138     //  to indicate that we have returned information on all our
139     //  columns. GetColumnInfo will be called repeatedly until S_FALSE
140     //  or an error is returned
141 	psci->scid.fmtid = ColumnInfoTable[dwIndex].scid.fmtid;
142 	psci->scid.pid   = ColumnInfoTable[dwIndex].scid.pid;
143     ZeroMemory(psci->wszTitle, sizeof(psci->wszTitle));
144     wcsncpy(psci->wszTitle, ColumnInfoTable[dwIndex].wszTitle, (sizeof(psci->wszTitle) - 1));
145 
146 	//wcscpy(psci->wszTitle, ColumnInfoTable[dwIndex].wszTitle);
147 
148 	return S_OK;
149 }
150 
151 //-----------------------------
152 //
153 //-----------------------------
154 
155 HRESULT STDMETHODCALLTYPE CColumnInfo::GetItemData(LPCSHCOLUMNID pscid, LPCSHCOLUMNDATA pscd, VARIANT *pvarData)
156 {
157 	if (IsOOFileExtension(pscd->pwszExt))
158 	{
159 		try
160 		{
161 		    std::wstring fname = getShortPathName( std::wstring( pscd->wszFile ) );
162 
163 			CMetaInfoReader meta_info_accessor(WStringToString(fname));
164 
165 			VariantClear(pvarData);
166 
167 			if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_TITLE)
168 			{
169 				pvarData->vt = VT_BSTR;
170 				pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_TITLE ).c_str());
171 
172 				return S_OK;
173 			}
174 			else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_AUTHOR)
175 			{
176 				pvarData->vt = VT_BSTR;
177 				pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_AUTHOR).c_str());
178 
179 				return S_OK;
180 			}
181 			else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_SUBJECT)
182 			{
183 				pvarData->vt = VT_BSTR;
184 				pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_SUBJECT).c_str());
185 
186 				return S_OK;
187 			}
188 			else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_KEYWORDS)
189 			{
190 				pvarData->vt = VT_BSTR;
191 				pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_KEYWORDS).c_str());
192 
193 				return S_OK;
194 			}
195 			else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_COMMENTS)
196 			{
197 				pvarData->vt = VT_BSTR;
198 				pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagData( META_INFO_DESCRIPTION).c_str());
199 
200 				return S_OK;
201 			}
202 			else if (IsEqualGUID (pscid->fmtid, FMTID_SummaryInformation) && pscid->pid == PIDSI_PAGECOUNT)
203 			{
204 				pvarData->vt = VT_BSTR;
205 				pvarData->bstrVal = SysAllocString(meta_info_accessor.getTagAttribute( META_INFO_DOCUMENT_STATISTIC, META_INFO_PAGES).c_str());
206 
207 				return S_OK;
208 			}
209 		}
210 		catch (const std::exception&)
211 		{
212 			return S_FALSE;
213 		}
214 	}
215 
216 	return S_FALSE;
217 }
218 
219 //-----------------------------
220 //
221 //-----------------------------
222 
223 bool CColumnInfo::IsOOFileExtension(wchar_t* Extension) const
224 {
225 	for (size_t i = 0; i < OOFileExtensionTableSize; i++)
226 	{
227 		if (0 == _wcsicmp(Extension, OOFileExtensionTable[i].ExtensionUnicode))
228 			return true;
229 	}
230 
231 	return false;
232 }
233