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269a5a34 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: msw/ole/dataobj.cpp | |
3 | // Purpose: implementation of wx[I]DataObject class | |
4 | // Author: Vadim Zeitlin | |
3f4a0c5b | 5 | // Modified by: |
269a5a34 VZ |
6 | // Created: 10.05.98 |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> | |
65571936 | 9 | // Licence: wxWindows licence |
269a5a34 VZ |
10 | /////////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
269a5a34 VZ |
20 | // For compilers that support precompilation, includes "wx.h". |
21 | #include "wx/wxprec.h" | |
22 | ||
23 | #if defined(__BORLANDC__) | |
0d0512bd | 24 | #pragma hdrstop |
269a5a34 | 25 | #endif |
0d0512bd | 26 | |
7dee726c | 27 | #ifndef WX_PRECOMP |
0d0512bd VZ |
28 | #include "wx/intl.h" |
29 | #include "wx/log.h" | |
daac16bb | 30 | #include "wx/utils.h" |
7dee726c | 31 | #endif |
5260b1c5 | 32 | |
3f480da3 | 33 | #include "wx/dataobj.h" |
17b74d79 | 34 | |
21709999 JS |
35 | #if wxUSE_OLE && defined(__WIN32__) && !defined(__GNUWIN32_OLD__) |
36 | ||
0d0512bd VZ |
37 | #include "wx/msw/private.h" // includes <windows.h> |
38 | ||
4676948b JS |
39 | #ifdef __WXWINCE__ |
40 | #include <winreg.h> | |
41 | #endif | |
42 | ||
a7b4607f | 43 | // for some compilers, the entire ole2.h must be included, not only oleauto.h |
4676948b | 44 | #if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__) || defined(__WXWINCE__) |
7dee726c RS |
45 | #include <ole2.h> |
46 | #endif | |
269a5a34 | 47 | |
a7b4607f | 48 | #include <oleauto.h> |
8b85d24e VZ |
49 | #include <shlobj.h> |
50 | ||
0d0512bd VZ |
51 | #include "wx/msw/ole/oleutils.h" |
52 | ||
53 | #include "wx/msw/dib.h" | |
17b74d79 | 54 | |
dcbd7ce2 VS |
55 | #ifndef CFSTR_SHELLURL |
56 | #define CFSTR_SHELLURL _T("UniformResourceLocator") | |
57 | #endif | |
58 | ||
269a5a34 VZ |
59 | // ---------------------------------------------------------------------------- |
60 | // functions | |
61 | // ---------------------------------------------------------------------------- | |
62 | ||
8e193f38 | 63 | #ifdef __WXDEBUG__ |
d59ceba5 | 64 | static const wxChar *GetTymedName(DWORD tymed); |
1e8335b0 | 65 | #else // !Debug |
fda7962d | 66 | #define GetTymedName(tymed) wxEmptyString |
1e8335b0 | 67 | #endif // Debug/!Debug |
269a5a34 VZ |
68 | |
69 | // ---------------------------------------------------------------------------- | |
70 | // wxIEnumFORMATETC interface implementation | |
71 | // ---------------------------------------------------------------------------- | |
8e193f38 | 72 | |
269a5a34 VZ |
73 | class wxIEnumFORMATETC : public IEnumFORMATETC |
74 | { | |
75 | public: | |
8e193f38 | 76 | wxIEnumFORMATETC(const wxDataFormat* formats, ULONG nCount); |
33ac7e6f | 77 | virtual ~wxIEnumFORMATETC() { delete [] m_formats; } |
269a5a34 | 78 | |
8e193f38 VZ |
79 | // IEnumFORMATETC |
80 | STDMETHODIMP Next(ULONG celt, FORMATETC *rgelt, ULONG *pceltFetched); | |
81 | STDMETHODIMP Skip(ULONG celt); | |
82 | STDMETHODIMP Reset(); | |
83 | STDMETHODIMP Clone(IEnumFORMATETC **ppenum); | |
269a5a34 | 84 | |
6f02a879 VZ |
85 | DECLARE_IUNKNOWN_METHODS; |
86 | ||
269a5a34 | 87 | private: |
8e193f38 VZ |
88 | CLIPFORMAT *m_formats; // formats we can provide data in |
89 | ULONG m_nCount, // number of formats we support | |
90 | m_nCurrent; // current enum position | |
22f3361e VZ |
91 | |
92 | DECLARE_NO_COPY_CLASS(wxIEnumFORMATETC) | |
269a5a34 VZ |
93 | }; |
94 | ||
95 | // ---------------------------------------------------------------------------- | |
96 | // wxIDataObject implementation of IDataObject interface | |
97 | // ---------------------------------------------------------------------------- | |
8e193f38 | 98 | |
269a5a34 VZ |
99 | class wxIDataObject : public IDataObject |
100 | { | |
101 | public: | |
8e193f38 | 102 | wxIDataObject(wxDataObject *pDataObject); |
33ac7e6f | 103 | virtual ~wxIDataObject(); |
d59ceba5 VZ |
104 | |
105 | // normally, wxDataObject controls our lifetime (i.e. we're deleted when it | |
3103e8a9 | 106 | // is), but in some cases, the situation is reversed, that is we delete it |
d59ceba5 | 107 | // when this object is deleted - setting this flag enables such logic |
17a6a2e0 | 108 | void SetDeleteFlag() { m_mustDelete = true; } |
269a5a34 | 109 | |
8e193f38 VZ |
110 | // IDataObject |
111 | STDMETHODIMP GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium); | |
112 | STDMETHODIMP GetDataHere(FORMATETC *pformatetc, STGMEDIUM *pmedium); | |
113 | STDMETHODIMP QueryGetData(FORMATETC *pformatetc); | |
114 | STDMETHODIMP GetCanonicalFormatEtc(FORMATETC *In, FORMATETC *pOut); | |
115 | STDMETHODIMP SetData(FORMATETC *pfetc, STGMEDIUM *pmedium, BOOL fRelease); | |
116 | STDMETHODIMP EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC **ppenumFEtc); | |
117 | STDMETHODIMP DAdvise(FORMATETC *pfetc, DWORD ad, IAdviseSink *p, DWORD *pdw); | |
118 | STDMETHODIMP DUnadvise(DWORD dwConnection); | |
119 | STDMETHODIMP EnumDAdvise(IEnumSTATDATA **ppenumAdvise); | |
269a5a34 | 120 | |
6f02a879 VZ |
121 | DECLARE_IUNKNOWN_METHODS; |
122 | ||
269a5a34 | 123 | private: |
8e193f38 | 124 | wxDataObject *m_pDataObject; // pointer to C++ class we belong to |
d59ceba5 VZ |
125 | |
126 | bool m_mustDelete; | |
22f3361e VZ |
127 | |
128 | DECLARE_NO_COPY_CLASS(wxIDataObject) | |
d59ceba5 VZ |
129 | }; |
130 | ||
269a5a34 VZ |
131 | // ============================================================================ |
132 | // implementation | |
133 | // ============================================================================ | |
134 | ||
3f480da3 VZ |
135 | // ---------------------------------------------------------------------------- |
136 | // wxDataFormat | |
137 | // ---------------------------------------------------------------------------- | |
138 | ||
139 | void wxDataFormat::SetId(const wxChar *format) | |
140 | { | |
33ac7e6f | 141 | m_format = (wxDataFormat::NativeFormat)::RegisterClipboardFormat(format); |
3f480da3 VZ |
142 | if ( !m_format ) |
143 | { | |
144 | wxLogError(_("Couldn't register clipboard format '%s'."), format); | |
145 | } | |
146 | } | |
147 | ||
148 | wxString wxDataFormat::GetId() const | |
149 | { | |
150 | static const int max = 256; | |
151 | ||
152 | wxString s; | |
153 | ||
154 | wxCHECK_MSG( !IsStandard(), s, | |
223d09f6 | 155 | wxT("name of predefined format cannot be retrieved") ); |
3f480da3 | 156 | |
de564874 | 157 | int len = ::GetClipboardFormatName(m_format, wxStringBuffer(s, max), max); |
3f480da3 VZ |
158 | |
159 | if ( !len ) | |
160 | { | |
161 | wxLogError(_("The clipboard format '%d' doesn't exist."), m_format); | |
162 | } | |
163 | ||
164 | return s; | |
165 | } | |
166 | ||
269a5a34 VZ |
167 | // ---------------------------------------------------------------------------- |
168 | // wxIEnumFORMATETC | |
169 | // ---------------------------------------------------------------------------- | |
170 | ||
171 | BEGIN_IID_TABLE(wxIEnumFORMATETC) | |
8e193f38 VZ |
172 | ADD_IID(Unknown) |
173 | ADD_IID(EnumFORMATETC) | |
269a5a34 VZ |
174 | END_IID_TABLE; |
175 | ||
176 | IMPLEMENT_IUNKNOWN_METHODS(wxIEnumFORMATETC) | |
177 | ||
8e193f38 | 178 | wxIEnumFORMATETC::wxIEnumFORMATETC(const wxDataFormat *formats, ULONG nCount) |
269a5a34 | 179 | { |
8e193f38 VZ |
180 | m_nCurrent = 0; |
181 | m_nCount = nCount; | |
182 | m_formats = new CLIPFORMAT[nCount]; | |
183 | for ( ULONG n = 0; n < nCount; n++ ) { | |
184 | m_formats[n] = formats[n].GetFormatId(); | |
185 | } | |
269a5a34 VZ |
186 | } |
187 | ||
188 | STDMETHODIMP wxIEnumFORMATETC::Next(ULONG celt, | |
189 | FORMATETC *rgelt, | |
1f1c4210 | 190 | ULONG *pceltFetched) |
269a5a34 | 191 | { |
8e193f38 | 192 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Next")); |
269a5a34 | 193 | |
1f1c4210 VZ |
194 | ULONG numFetched = 0; |
195 | while (m_nCurrent < m_nCount && numFetched < celt) { | |
8e193f38 VZ |
196 | FORMATETC format; |
197 | format.cfFormat = m_formats[m_nCurrent++]; | |
198 | format.ptd = NULL; | |
199 | format.dwAspect = DVASPECT_CONTENT; | |
200 | format.lindex = -1; | |
201 | format.tymed = TYMED_HGLOBAL; | |
269a5a34 | 202 | |
1f1c4210 VZ |
203 | *rgelt++ = format; |
204 | numFetched++; | |
8e193f38 | 205 | } |
1f1c4210 VZ |
206 | |
207 | if (pceltFetched) | |
208 | *pceltFetched = numFetched; | |
209 | ||
210 | return numFetched == celt ? S_OK : S_FALSE; | |
269a5a34 VZ |
211 | } |
212 | ||
213 | STDMETHODIMP wxIEnumFORMATETC::Skip(ULONG celt) | |
214 | { | |
8e193f38 VZ |
215 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Skip")); |
216 | ||
217 | m_nCurrent += celt; | |
218 | if ( m_nCurrent < m_nCount ) | |
219 | return S_OK; | |
269a5a34 | 220 | |
8e193f38 VZ |
221 | // no, can't skip this many elements |
222 | m_nCurrent -= celt; | |
269a5a34 | 223 | |
8e193f38 | 224 | return S_FALSE; |
269a5a34 VZ |
225 | } |
226 | ||
227 | STDMETHODIMP wxIEnumFORMATETC::Reset() | |
228 | { | |
8e193f38 | 229 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Reset")); |
269a5a34 | 230 | |
8e193f38 | 231 | m_nCurrent = 0; |
269a5a34 | 232 | |
8e193f38 | 233 | return S_OK; |
269a5a34 VZ |
234 | } |
235 | ||
236 | STDMETHODIMP wxIEnumFORMATETC::Clone(IEnumFORMATETC **ppenum) | |
237 | { | |
8e193f38 VZ |
238 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Clone")); |
239 | ||
240 | // unfortunately, we can't reuse the code in ctor - types are different | |
241 | wxIEnumFORMATETC *pNew = new wxIEnumFORMATETC(NULL, 0); | |
242 | pNew->m_nCount = m_nCount; | |
243 | pNew->m_formats = new CLIPFORMAT[m_nCount]; | |
244 | for ( ULONG n = 0; n < m_nCount; n++ ) { | |
245 | pNew->m_formats[n] = m_formats[n]; | |
246 | } | |
247 | pNew->AddRef(); | |
248 | *ppenum = pNew; | |
269a5a34 | 249 | |
8e193f38 | 250 | return S_OK; |
269a5a34 VZ |
251 | } |
252 | ||
253 | // ---------------------------------------------------------------------------- | |
254 | // wxIDataObject | |
255 | // ---------------------------------------------------------------------------- | |
256 | ||
257 | BEGIN_IID_TABLE(wxIDataObject) | |
8e193f38 VZ |
258 | ADD_IID(Unknown) |
259 | ADD_IID(DataObject) | |
269a5a34 VZ |
260 | END_IID_TABLE; |
261 | ||
262 | IMPLEMENT_IUNKNOWN_METHODS(wxIDataObject) | |
263 | ||
264 | wxIDataObject::wxIDataObject(wxDataObject *pDataObject) | |
265 | { | |
8e193f38 | 266 | m_pDataObject = pDataObject; |
17a6a2e0 | 267 | m_mustDelete = false; |
d59ceba5 VZ |
268 | } |
269 | ||
270 | wxIDataObject::~wxIDataObject() | |
271 | { | |
272 | if ( m_mustDelete ) | |
273 | { | |
274 | delete m_pDataObject; | |
275 | } | |
269a5a34 VZ |
276 | } |
277 | ||
278 | // get data functions | |
279 | STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium) | |
280 | { | |
8e193f38 | 281 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetData")); |
269a5a34 | 282 | |
8e193f38 VZ |
283 | // is data is in our format? |
284 | HRESULT hr = QueryGetData(pformatetcIn); | |
285 | if ( FAILED(hr) ) | |
286 | return hr; | |
269a5a34 | 287 | |
8e193f38 VZ |
288 | // for the bitmaps and metafiles we use the handles instead of global memory |
289 | // to pass the data | |
f4d0cce0 | 290 | wxDataFormat format = (wxDataFormat::NativeFormat)pformatetcIn->cfFormat; |
269a5a34 | 291 | |
8e193f38 VZ |
292 | switch ( format ) |
293 | { | |
294 | case wxDF_BITMAP: | |
295 | pmedium->tymed = TYMED_GDI; | |
296 | break; | |
297 | ||
d9317fd4 VZ |
298 | case wxDF_ENHMETAFILE: |
299 | pmedium->tymed = TYMED_ENHMF; | |
300 | break; | |
301 | ||
4676948b | 302 | #ifndef __WXWINCE__ |
8e193f38 | 303 | case wxDF_METAFILE: |
265b0c07 VZ |
304 | pmedium->hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, |
305 | sizeof(METAFILEPICT)); | |
306 | if ( !pmedium->hGlobal ) { | |
f6bcfd97 | 307 | wxLogLastError(wxT("GlobalAlloc")); |
265b0c07 VZ |
308 | return E_OUTOFMEMORY; |
309 | } | |
8e193f38 VZ |
310 | pmedium->tymed = TYMED_MFPICT; |
311 | break; | |
4676948b | 312 | #endif |
8e193f38 VZ |
313 | default: |
314 | // alloc memory | |
315 | size_t size = m_pDataObject->GetDataSize(format); | |
316 | if ( !size ) { | |
317 | // it probably means that the method is just not implemented | |
318 | wxLogDebug(wxT("Invalid data size - can't be 0")); | |
319 | ||
320 | return DV_E_FORMATETC; | |
321 | } | |
322 | ||
a8e24848 VZ |
323 | // we may need extra space for the buffer size |
324 | size += m_pDataObject->GetBufferOffset( format ); | |
9e2896e5 | 325 | |
8e193f38 VZ |
326 | HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, size); |
327 | if ( hGlobal == NULL ) { | |
f6bcfd97 | 328 | wxLogLastError(wxT("GlobalAlloc")); |
8e193f38 VZ |
329 | return E_OUTOFMEMORY; |
330 | } | |
331 | ||
332 | // copy data | |
333 | pmedium->tymed = TYMED_HGLOBAL; | |
334 | pmedium->hGlobal = hGlobal; | |
335 | } | |
269a5a34 | 336 | |
8e193f38 VZ |
337 | pmedium->pUnkForRelease = NULL; |
338 | ||
339 | // do copy the data | |
340 | hr = GetDataHere(pformatetcIn, pmedium); | |
341 | if ( FAILED(hr) ) { | |
342 | // free resources we allocated | |
265b0c07 | 343 | if ( pmedium->tymed & (TYMED_HGLOBAL | TYMED_MFPICT) ) { |
8e193f38 VZ |
344 | GlobalFree(pmedium->hGlobal); |
345 | } | |
346 | ||
347 | return hr; | |
348 | } | |
269a5a34 | 349 | |
8e193f38 | 350 | return S_OK; |
269a5a34 VZ |
351 | } |
352 | ||
353 | STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc, | |
354 | STGMEDIUM *pmedium) | |
355 | { | |
8e193f38 | 356 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetDataHere")); |
269a5a34 | 357 | |
8e193f38 VZ |
358 | // put data in caller provided medium |
359 | switch ( pmedium->tymed ) | |
360 | { | |
361 | case TYMED_GDI: | |
d59ceba5 VZ |
362 | if ( !m_pDataObject->GetDataHere(wxDF_BITMAP, &pmedium->hBitmap) ) |
363 | return E_UNEXPECTED; | |
8e193f38 VZ |
364 | break; |
365 | ||
d9317fd4 VZ |
366 | case TYMED_ENHMF: |
367 | if ( !m_pDataObject->GetDataHere(wxDF_ENHMETAFILE, | |
368 | &pmedium->hEnhMetaFile) ) | |
369 | return E_UNEXPECTED; | |
370 | break; | |
371 | ||
8e193f38 | 372 | case TYMED_MFPICT: |
d9317fd4 VZ |
373 | // fall through - we pass METAFILEPICT through HGLOBAL |
374 | ||
8e193f38 VZ |
375 | case TYMED_HGLOBAL: |
376 | { | |
377 | // copy data | |
9e2896e5 VZ |
378 | HGLOBAL hGlobal = pmedium->hGlobal; |
379 | void *pBuf = GlobalLock(hGlobal); | |
8e193f38 VZ |
380 | if ( pBuf == NULL ) { |
381 | wxLogLastError(wxT("GlobalLock")); | |
382 | return E_OUTOFMEMORY; | |
383 | } | |
384 | ||
e1b435af | 385 | wxDataFormat format = pformatetc->cfFormat; |
a8e24848 VZ |
386 | |
387 | // possibly put the size in the beginning of the buffer | |
388 | pBuf = m_pDataObject->SetSizeInBuffer | |
389 | ( | |
390 | pBuf, | |
391 | ::GlobalSize(hGlobal), | |
392 | format | |
393 | ); | |
9e2896e5 | 394 | |
d59ceba5 VZ |
395 | if ( !m_pDataObject->GetDataHere(format, pBuf) ) |
396 | return E_UNEXPECTED; | |
8e193f38 | 397 | |
9e2896e5 | 398 | GlobalUnlock(hGlobal); |
8e193f38 VZ |
399 | } |
400 | break; | |
401 | ||
402 | default: | |
403 | return DV_E_TYMED; | |
404 | } | |
269a5a34 | 405 | |
8e193f38 | 406 | return S_OK; |
269a5a34 VZ |
407 | } |
408 | ||
d26fad77 | 409 | |
9e2896e5 | 410 | // set data functions |
269a5a34 VZ |
411 | STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc, |
412 | STGMEDIUM *pmedium, | |
413 | BOOL fRelease) | |
414 | { | |
d59ceba5 | 415 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::SetData")); |
8e193f38 | 416 | |
d59ceba5 VZ |
417 | switch ( pmedium->tymed ) |
418 | { | |
419 | case TYMED_GDI: | |
9e2896e5 | 420 | m_pDataObject->SetData(wxDF_BITMAP, 0, &pmedium->hBitmap); |
d59ceba5 VZ |
421 | break; |
422 | ||
d9317fd4 VZ |
423 | case TYMED_ENHMF: |
424 | m_pDataObject->SetData(wxDF_ENHMETAFILE, 0, &pmedium->hEnhMetaFile); | |
425 | break; | |
426 | ||
d59ceba5 | 427 | case TYMED_MFPICT: |
d9317fd4 | 428 | // fall through - we pass METAFILEPICT through HGLOBAL |
d59ceba5 VZ |
429 | case TYMED_HGLOBAL: |
430 | { | |
51edda6a VZ |
431 | wxDataFormat format = pformatetc->cfFormat; |
432 | ||
433 | // this is quite weird, but for file drag and drop, explorer | |
434 | // calls our SetData() with the formats we do *not* support! | |
435 | // | |
436 | // as we can't fix this bug in explorer (it's a bug because it | |
437 | // should only use formats returned by EnumFormatEtc), do the | |
438 | // check here | |
5015e022 | 439 | if ( !m_pDataObject->IsSupported(format, wxDataObject::Set) ) { |
51edda6a VZ |
440 | // go away! |
441 | return DV_E_FORMATETC; | |
442 | } | |
443 | ||
d59ceba5 | 444 | // copy data |
e1b435af | 445 | const void *pBuf = GlobalLock(pmedium->hGlobal); |
d59ceba5 | 446 | if ( pBuf == NULL ) { |
f6bcfd97 | 447 | wxLogLastError(wxT("GlobalLock")); |
d59ceba5 VZ |
448 | |
449 | return E_OUTOFMEMORY; | |
450 | } | |
451 | ||
9e2896e5 VZ |
452 | // we've got a problem with SetData() here because the base |
453 | // class version requires the size parameter which we don't | |
454 | // have anywhere in OLE data transfer - so we need to | |
455 | // synthetise it for known formats and we suppose that all data | |
456 | // in custom formats starts with a DWORD containing the size | |
457 | size_t size; | |
51edda6a | 458 | switch ( format ) |
9e2896e5 VZ |
459 | { |
460 | case CF_TEXT: | |
461 | case CF_OEMTEXT: | |
462 | size = strlen((const char *)pBuf); | |
463 | break; | |
afd23c22 | 464 | #if !(defined(__BORLANDC__) && (__BORLANDC__ < 0x500)) |
9e2896e5 | 465 | case CF_UNICODETEXT: |
de85a884 VZ |
466 | #if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \ |
467 | || ( defined(__MWERKS__) && defined(__WXMSW__) ) | |
e1b435af | 468 | size = std::wcslen((const wchar_t *)pBuf) * sizeof(wchar_t); |
d834f22c | 469 | #else |
17ebae65 | 470 | size = wxWcslen((const wchar_t *)pBuf) * sizeof(wchar_t); |
d834f22c | 471 | #endif |
9e2896e5 | 472 | break; |
4d85bcd1 | 473 | #endif |
9e2896e5 | 474 | case CF_BITMAP: |
4676948b | 475 | #ifndef __WXWINCE__ |
9e2896e5 VZ |
476 | case CF_HDROP: |
477 | // these formats don't use size at all, anyhow (but | |
478 | // pass data by handle, which is always a single DWORD) | |
479 | size = 0; | |
480 | break; | |
4676948b | 481 | #endif |
9e2896e5 | 482 | |
8ee9d618 VZ |
483 | case CF_DIB: |
484 | // the handler will calculate size itself (it's too | |
485 | // complicated to do it here) | |
486 | size = 0; | |
487 | break; | |
488 | ||
4676948b | 489 | #ifndef __WXWINCE__ |
265b0c07 VZ |
490 | case CF_METAFILEPICT: |
491 | size = sizeof(METAFILEPICT); | |
492 | break; | |
4676948b | 493 | #endif |
9e2896e5 | 494 | default: |
a8e24848 VZ |
495 | pBuf = m_pDataObject-> |
496 | GetSizeFromBuffer(pBuf, &size, format); | |
497 | size -= m_pDataObject->GetBufferOffset(format); | |
9e2896e5 VZ |
498 | } |
499 | ||
9e2896e5 | 500 | bool ok = m_pDataObject->SetData(format, size, pBuf); |
d59ceba5 VZ |
501 | |
502 | GlobalUnlock(pmedium->hGlobal); | |
9e2896e5 VZ |
503 | |
504 | if ( !ok ) { | |
505 | return E_UNEXPECTED; | |
506 | } | |
d59ceba5 VZ |
507 | } |
508 | break; | |
509 | ||
510 | default: | |
511 | return DV_E_TYMED; | |
512 | } | |
513 | ||
514 | if ( fRelease ) { | |
265b0c07 VZ |
515 | // we own the medium, so we must release it - but do *not* free any |
516 | // data we pass by handle because we have copied it elsewhere | |
517 | switch ( pmedium->tymed ) | |
d59ceba5 | 518 | { |
265b0c07 VZ |
519 | case TYMED_GDI: |
520 | pmedium->hBitmap = 0; | |
521 | break; | |
522 | ||
523 | case TYMED_MFPICT: | |
524 | pmedium->hMetaFilePict = 0; | |
525 | break; | |
d9317fd4 VZ |
526 | |
527 | case TYMED_ENHMF: | |
528 | pmedium->hEnhMetaFile = 0; | |
529 | break; | |
d59ceba5 VZ |
530 | } |
531 | ||
532 | ReleaseStgMedium(pmedium); | |
533 | } | |
534 | ||
535 | return S_OK; | |
269a5a34 VZ |
536 | } |
537 | ||
538 | // information functions | |
539 | STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc) | |
540 | { | |
d59ceba5 VZ |
541 | // do we accept data in this format? |
542 | if ( pformatetc == NULL ) { | |
543 | wxLogTrace(wxTRACE_OleCalls, | |
544 | wxT("wxIDataObject::QueryGetData: invalid ptr.")); | |
8e193f38 | 545 | |
d59ceba5 VZ |
546 | return E_INVALIDARG; |
547 | } | |
269a5a34 | 548 | |
d59ceba5 VZ |
549 | // the only one allowed by current COM implementation |
550 | if ( pformatetc->lindex != -1 ) { | |
551 | wxLogTrace(wxTRACE_OleCalls, | |
9b601c24 | 552 | wxT("wxIDataObject::QueryGetData: bad lindex %ld"), |
d59ceba5 | 553 | pformatetc->lindex); |
269a5a34 | 554 | |
d59ceba5 VZ |
555 | return DV_E_LINDEX; |
556 | } | |
269a5a34 | 557 | |
d59ceba5 VZ |
558 | // we don't support anything other (THUMBNAIL, ICON, DOCPRINT...) |
559 | if ( pformatetc->dwAspect != DVASPECT_CONTENT ) { | |
560 | wxLogTrace(wxTRACE_OleCalls, | |
9b601c24 | 561 | wxT("wxIDataObject::QueryGetData: bad dwAspect %ld"), |
d59ceba5 VZ |
562 | pformatetc->dwAspect); |
563 | ||
564 | return DV_E_DVASPECT; | |
565 | } | |
566 | ||
567 | // and now check the type of data requested | |
9e2896e5 | 568 | wxDataFormat format = pformatetc->cfFormat; |
d59ceba5 | 569 | if ( m_pDataObject->IsSupportedFormat(format) ) { |
d59ceba5 | 570 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::QueryGetData: %s ok"), |
1e8335b0 | 571 | wxGetFormatName(format)); |
d59ceba5 VZ |
572 | } |
573 | else { | |
574 | wxLogTrace(wxTRACE_OleCalls, | |
575 | wxT("wxIDataObject::QueryGetData: %s unsupported"), | |
1e8335b0 | 576 | wxGetFormatName(format)); |
9e2896e5 | 577 | |
d59ceba5 VZ |
578 | return DV_E_FORMATETC; |
579 | } | |
580 | ||
581 | // we only transfer data by global memory, except for some particular cases | |
582 | DWORD tymed = pformatetc->tymed; | |
583 | if ( (format == wxDF_BITMAP && !(tymed & TYMED_GDI)) && | |
584 | !(tymed & TYMED_HGLOBAL) ) { | |
585 | // it's not what we're waiting for | |
d59ceba5 VZ |
586 | wxLogTrace(wxTRACE_OleCalls, |
587 | wxT("wxIDataObject::QueryGetData: %s != %s"), | |
588 | GetTymedName(tymed), | |
589 | GetTymedName(format == wxDF_BITMAP ? TYMED_GDI | |
590 | : TYMED_HGLOBAL)); | |
d59ceba5 VZ |
591 | |
592 | return DV_E_TYMED; | |
593 | } | |
594 | ||
269a5a34 | 595 | return S_OK; |
269a5a34 VZ |
596 | } |
597 | ||
33ac7e6f | 598 | STDMETHODIMP wxIDataObject::GetCanonicalFormatEtc(FORMATETC *WXUNUSED(pFormatetcIn), |
269a5a34 VZ |
599 | FORMATETC *pFormatetcOut) |
600 | { | |
8e193f38 VZ |
601 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetCanonicalFormatEtc")); |
602 | ||
603 | // TODO we might want something better than this trivial implementation here | |
604 | if ( pFormatetcOut != NULL ) | |
605 | pFormatetcOut->ptd = NULL; | |
269a5a34 | 606 | |
8e193f38 | 607 | return DATA_S_SAMEFORMATETC; |
269a5a34 VZ |
608 | } |
609 | ||
9e2896e5 | 610 | STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDir, |
269a5a34 VZ |
611 | IEnumFORMATETC **ppenumFormatEtc) |
612 | { | |
8e193f38 | 613 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::EnumFormatEtc")); |
269a5a34 | 614 | |
9e2896e5 VZ |
615 | wxDataObject::Direction dir = dwDir == DATADIR_GET ? wxDataObject::Get |
616 | : wxDataObject::Set; | |
269a5a34 | 617 | |
4a10ea8b | 618 | ULONG nFormatCount = wx_truncate_cast(ULONG, m_pDataObject->GetFormatCount(dir)); |
33ac7e6f | 619 | wxDataFormat format; |
c5639a87 | 620 | wxDataFormat *formats; |
9e2896e5 VZ |
621 | formats = nFormatCount == 1 ? &format : new wxDataFormat[nFormatCount]; |
622 | m_pDataObject->GetAllFormats(formats, dir); | |
8e193f38 VZ |
623 | |
624 | wxIEnumFORMATETC *pEnum = new wxIEnumFORMATETC(formats, nFormatCount); | |
625 | pEnum->AddRef(); | |
626 | *ppenumFormatEtc = pEnum; | |
627 | ||
628 | if ( formats != &format ) { | |
629 | delete [] formats; | |
630 | } | |
269a5a34 | 631 | |
8e193f38 | 632 | return S_OK; |
269a5a34 VZ |
633 | } |
634 | ||
9e2896e5 | 635 | // ---------------------------------------------------------------------------- |
269a5a34 | 636 | // advise sink functions (not implemented) |
9e2896e5 VZ |
637 | // ---------------------------------------------------------------------------- |
638 | ||
33ac7e6f KB |
639 | STDMETHODIMP wxIDataObject::DAdvise(FORMATETC *WXUNUSED(pformatetc), |
640 | DWORD WXUNUSED(advf), | |
641 | IAdviseSink *WXUNUSED(pAdvSink), | |
642 | DWORD *WXUNUSED(pdwConnection)) | |
269a5a34 VZ |
643 | { |
644 | return OLE_E_ADVISENOTSUPPORTED; | |
645 | } | |
646 | ||
33ac7e6f | 647 | STDMETHODIMP wxIDataObject::DUnadvise(DWORD WXUNUSED(dwConnection)) |
269a5a34 VZ |
648 | { |
649 | return OLE_E_ADVISENOTSUPPORTED; | |
650 | } | |
651 | ||
33ac7e6f | 652 | STDMETHODIMP wxIDataObject::EnumDAdvise(IEnumSTATDATA **WXUNUSED(ppenumAdvise)) |
269a5a34 VZ |
653 | { |
654 | return OLE_E_ADVISENOTSUPPORTED; | |
655 | } | |
656 | ||
657 | // ---------------------------------------------------------------------------- | |
658 | // wxDataObject | |
659 | // ---------------------------------------------------------------------------- | |
660 | ||
661 | wxDataObject::wxDataObject() | |
662 | { | |
d59ceba5 VZ |
663 | m_pIDataObject = new wxIDataObject(this); |
664 | m_pIDataObject->AddRef(); | |
269a5a34 VZ |
665 | } |
666 | ||
667 | wxDataObject::~wxDataObject() | |
668 | { | |
d59ceba5 VZ |
669 | ReleaseInterface(m_pIDataObject); |
670 | } | |
671 | ||
672 | void wxDataObject::SetAutoDelete() | |
673 | { | |
674 | ((wxIDataObject *)m_pIDataObject)->SetDeleteFlag(); | |
675 | m_pIDataObject->Release(); | |
676 | ||
677 | // so that the dtor doesnt' crash | |
678 | m_pIDataObject = NULL; | |
269a5a34 VZ |
679 | } |
680 | ||
a8e24848 | 681 | size_t wxDataObject::GetBufferOffset(const wxDataFormat& format ) |
e1b435af | 682 | { |
a8e24848 VZ |
683 | // if we prepend the size of the data to the buffer itself, account for it |
684 | return NeedsVerbatimData(format) ? 0 : sizeof(size_t); | |
e1b435af MB |
685 | } |
686 | ||
687 | const void* wxDataObject::GetSizeFromBuffer( const void* buffer, size_t* size, | |
a8e24848 | 688 | const wxDataFormat& format ) |
e1b435af | 689 | { |
24aab8e8 MW |
690 | // hack: the third parameter is declared non-const in Wine's headers so |
691 | // cast away the const | |
692 | size_t realsz = ::HeapSize(::GetProcessHeap(), 0, | |
693 | wx_const_cast(void*, buffer)); | |
51d05226 | 694 | if ( realsz == (size_t)-1 ) |
a8e24848 VZ |
695 | { |
696 | // note that HeapSize() does not set last error | |
697 | wxLogApiError(wxT("HeapSize"), 0); | |
698 | return NULL; | |
699 | } | |
700 | ||
701 | *size = realsz; | |
e1b435af | 702 | |
a8e24848 VZ |
703 | // check if this data has its size prepended (as it was by default for wx |
704 | // programs prior 2.6.3): | |
705 | size_t *p = (size_t *)buffer; | |
706 | if ( *p == realsz ) | |
707 | { | |
708 | if ( NeedsVerbatimData(format) ) | |
709 | wxLogDebug(wxT("Apparent data format mismatch: size not needed")); | |
710 | ||
711 | p++; // this data has its size prepended; skip first DWORD | |
712 | } | |
713 | ||
714 | return p; | |
e1b435af MB |
715 | } |
716 | ||
717 | void* wxDataObject::SetSizeInBuffer( void* buffer, size_t size, | |
a8e24848 | 718 | const wxDataFormat& format ) |
e1b435af | 719 | { |
a8e24848 VZ |
720 | size_t* p = (size_t *)buffer; |
721 | if ( !NeedsVerbatimData(format) ) | |
722 | { | |
723 | // prepend the size to the data and skip it | |
724 | *p++ = size; | |
725 | } | |
e1b435af | 726 | |
a8e24848 | 727 | return p; |
e1b435af MB |
728 | } |
729 | ||
d9317fd4 | 730 | #ifdef __WXDEBUG__ |
8e193f38 | 731 | |
f6bcfd97 | 732 | const wxChar *wxDataObject::GetFormatName(wxDataFormat format) |
d9317fd4 VZ |
733 | { |
734 | // case 'xxx' is not a valid value for switch of enum 'wxDataFormat' | |
735 | #ifdef __VISUALC__ | |
736 | #pragma warning(disable:4063) | |
737 | #endif // VC++ | |
738 | ||
f6bcfd97 | 739 | static wxChar s_szBuf[256]; |
d9317fd4 | 740 | switch ( format ) { |
f6bcfd97 BP |
741 | case CF_TEXT: return wxT("CF_TEXT"); |
742 | case CF_BITMAP: return wxT("CF_BITMAP"); | |
f6bcfd97 BP |
743 | case CF_SYLK: return wxT("CF_SYLK"); |
744 | case CF_DIF: return wxT("CF_DIF"); | |
745 | case CF_TIFF: return wxT("CF_TIFF"); | |
746 | case CF_OEMTEXT: return wxT("CF_OEMTEXT"); | |
747 | case CF_DIB: return wxT("CF_DIB"); | |
748 | case CF_PALETTE: return wxT("CF_PALETTE"); | |
749 | case CF_PENDATA: return wxT("CF_PENDATA"); | |
750 | case CF_RIFF: return wxT("CF_RIFF"); | |
751 | case CF_WAVE: return wxT("CF_WAVE"); | |
752 | case CF_UNICODETEXT: return wxT("CF_UNICODETEXT"); | |
569f027b VS |
753 | #ifndef __WXWINCE__ |
754 | case CF_METAFILEPICT: return wxT("CF_METAFILEPICT"); | |
f6bcfd97 | 755 | case CF_ENHMETAFILE: return wxT("CF_ENHMETAFILE"); |
f6bcfd97 | 756 | case CF_LOCALE: return wxT("CF_LOCALE"); |
569f027b VS |
757 | case CF_HDROP: return wxT("CF_HDROP"); |
758 | #endif | |
8e193f38 | 759 | |
d9317fd4 | 760 | default: |
c77ae1d9 | 761 | if ( !::GetClipboardFormatName(format, s_szBuf, WXSIZEOF(s_szBuf)) ) |
d9317fd4 VZ |
762 | { |
763 | // it must be a new predefined format we don't know the name of | |
f6bcfd97 | 764 | wxSprintf(s_szBuf, wxT("unknown CF (0x%04x)"), format.GetFormatId()); |
d9317fd4 | 765 | } |
8e193f38 | 766 | |
d9317fd4 | 767 | return s_szBuf; |
8e193f38 | 768 | } |
1e8335b0 | 769 | |
d9317fd4 VZ |
770 | #ifdef __VISUALC__ |
771 | #pragma warning(default:4063) | |
772 | #endif // VC++ | |
269a5a34 VZ |
773 | } |
774 | ||
1e8335b0 VZ |
775 | #endif // Debug |
776 | ||
3f480da3 | 777 | // ---------------------------------------------------------------------------- |
9e2896e5 | 778 | // wxBitmapDataObject supports CF_DIB format |
3f480da3 VZ |
779 | // ---------------------------------------------------------------------------- |
780 | ||
be69f971 VZ |
781 | // TODO: support CF_DIB under Windows CE as well |
782 | ||
9e2896e5 | 783 | size_t wxBitmapDataObject::GetDataSize() const |
3f480da3 | 784 | { |
be69f971 | 785 | #if wxUSE_WXDIB && !defined(__WXWINCE__) |
22be0335 | 786 | return wxDIB::ConvertFromBitmap(NULL, GetHbitmapOf(GetBitmap())); |
4cb88a72 JS |
787 | #else |
788 | return 0; | |
789 | #endif | |
3f480da3 VZ |
790 | } |
791 | ||
9e2896e5 | 792 | bool wxBitmapDataObject::GetDataHere(void *buf) const |
3f480da3 | 793 | { |
be69f971 | 794 | #if wxUSE_WXDIB && !defined(__WXWINCE__) |
22be0335 VZ |
795 | BITMAPINFO * const pbi = (BITMAPINFO *)buf; |
796 | ||
797 | return wxDIB::ConvertFromBitmap(pbi, GetHbitmapOf(GetBitmap())) != 0; | |
4cb88a72 | 798 | #else |
17a6a2e0 WS |
799 | wxUnusedVar(buf); |
800 | return false; | |
4cb88a72 | 801 | #endif |
3f480da3 VZ |
802 | } |
803 | ||
33ac7e6f | 804 | bool wxBitmapDataObject::SetData(size_t WXUNUSED(len), const void *buf) |
3f480da3 | 805 | { |
be69f971 | 806 | #if wxUSE_WXDIB && !defined(__WXWINCE__) |
22be0335 | 807 | const BITMAPINFO * const pbmi = (const BITMAPINFO *)buf; |
9e2896e5 | 808 | |
22be0335 | 809 | HBITMAP hbmp = wxDIB::ConvertToBitmap(pbmi); |
3f480da3 | 810 | |
22be0335 VZ |
811 | wxCHECK_MSG( hbmp, FALSE, wxT("pasting/dropping invalid bitmap") ); |
812 | ||
813 | const BITMAPINFOHEADER * const pbmih = &pbmi->bmiHeader; | |
814 | wxBitmap bitmap(pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount); | |
815 | bitmap.SetHBITMAP((WXHBITMAP)hbmp); | |
816 | ||
817 | // TODO: create wxPalette if the bitmap has any | |
9e2896e5 VZ |
818 | |
819 | SetBitmap(bitmap); | |
3f480da3 | 820 | |
17a6a2e0 | 821 | return true; |
4cb88a72 | 822 | #else |
17a6a2e0 WS |
823 | wxUnusedVar(buf); |
824 | return false; | |
4cb88a72 | 825 | #endif |
3f480da3 VZ |
826 | } |
827 | ||
9e2896e5 VZ |
828 | // ---------------------------------------------------------------------------- |
829 | // wxBitmapDataObject2 supports CF_BITMAP format | |
830 | // ---------------------------------------------------------------------------- | |
831 | ||
832 | // the bitmaps aren't passed by value as other types of data (i.e. by copying | |
833 | // the data into a global memory chunk and passing it to the clipboard or | |
834 | // another application or whatever), but by handle, so these generic functions | |
835 | // don't make much sense to them. | |
836 | ||
837 | size_t wxBitmapDataObject2::GetDataSize() const | |
3f480da3 | 838 | { |
9e2896e5 | 839 | return 0; |
3f480da3 VZ |
840 | } |
841 | ||
9e2896e5 | 842 | bool wxBitmapDataObject2::GetDataHere(void *pBuf) const |
3f480da3 | 843 | { |
9e2896e5 VZ |
844 | // we put a bitmap handle into pBuf |
845 | *(WXHBITMAP *)pBuf = GetBitmap().GetHBITMAP(); | |
846 | ||
17a6a2e0 | 847 | return true; |
3f480da3 VZ |
848 | } |
849 | ||
265b0c07 | 850 | bool wxBitmapDataObject2::SetData(size_t WXUNUSED(len), const void *pBuf) |
3f480da3 | 851 | { |
9e2896e5 | 852 | HBITMAP hbmp = *(HBITMAP *)pBuf; |
3f480da3 | 853 | |
9e2896e5 VZ |
854 | BITMAP bmp; |
855 | if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) ) | |
856 | { | |
f6bcfd97 | 857 | wxLogLastError(wxT("GetObject(HBITMAP)")); |
9e2896e5 | 858 | } |
8e193f38 | 859 | |
9e2896e5 VZ |
860 | wxBitmap bitmap(bmp.bmWidth, bmp.bmHeight, bmp.bmPlanes); |
861 | bitmap.SetHBITMAP((WXHBITMAP)hbmp); | |
d59ceba5 | 862 | |
9e2896e5 VZ |
863 | if ( !bitmap.Ok() ) { |
864 | wxFAIL_MSG(wxT("pasting/dropping invalid bitmap")); | |
865 | ||
17a6a2e0 | 866 | return false; |
9e2896e5 VZ |
867 | } |
868 | ||
869 | SetBitmap(bitmap); | |
870 | ||
17a6a2e0 | 871 | return true; |
d59ceba5 VZ |
872 | } |
873 | ||
9e2896e5 | 874 | #if 0 |
8e193f38 VZ |
875 | |
876 | size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const | |
877 | { | |
d59ceba5 VZ |
878 | if ( format.GetFormatId() == CF_DIB ) |
879 | { | |
880 | // create the DIB | |
881 | ScreenHDC hdc; | |
882 | ||
883 | // shouldn't be selected into a DC or GetDIBits() would fail | |
884 | wxASSERT_MSG( !m_bitmap.GetSelectedInto(), | |
885 | wxT("can't copy bitmap selected into wxMemoryDC") ); | |
886 | ||
887 | // first get the info | |
888 | BITMAPINFO bi; | |
889 | if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0, | |
890 | NULL, &bi, DIB_RGB_COLORS) ) | |
891 | { | |
f6bcfd97 | 892 | wxLogLastError(wxT("GetDIBits(NULL)")); |
d59ceba5 VZ |
893 | |
894 | return 0; | |
895 | } | |
896 | ||
897 | return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage; | |
898 | } | |
899 | else // CF_BITMAP | |
900 | { | |
901 | // no data to copy - we don't pass HBITMAP via global memory | |
902 | return 0; | |
903 | } | |
8e193f38 VZ |
904 | } |
905 | ||
d59ceba5 | 906 | bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format, |
8e193f38 VZ |
907 | void *pBuf) const |
908 | { | |
d59ceba5 VZ |
909 | wxASSERT_MSG( m_bitmap.Ok(), wxT("copying invalid bitmap") ); |
910 | ||
911 | HBITMAP hbmp = (HBITMAP)m_bitmap.GetHBITMAP(); | |
912 | if ( format.GetFormatId() == CF_DIB ) | |
913 | { | |
914 | // create the DIB | |
915 | ScreenHDC hdc; | |
916 | ||
917 | // shouldn't be selected into a DC or GetDIBits() would fail | |
918 | wxASSERT_MSG( !m_bitmap.GetSelectedInto(), | |
919 | wxT("can't copy bitmap selected into wxMemoryDC") ); | |
920 | ||
921 | // first get the info | |
922 | BITMAPINFO *pbi = (BITMAPINFO *)pBuf; | |
923 | if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) ) | |
924 | { | |
f6bcfd97 | 925 | wxLogLastError(wxT("GetDIBits(NULL)")); |
d59ceba5 VZ |
926 | |
927 | return 0; | |
928 | } | |
929 | ||
930 | // and now copy the bits | |
931 | if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1, | |
932 | pbi, DIB_RGB_COLORS) ) | |
933 | { | |
f6bcfd97 | 934 | wxLogLastError(wxT("GetDIBits")); |
d59ceba5 | 935 | |
17a6a2e0 | 936 | return false; |
d59ceba5 VZ |
937 | } |
938 | } | |
939 | else // CF_BITMAP | |
940 | { | |
941 | // we put a bitmap handle into pBuf | |
942 | *(HBITMAP *)pBuf = hbmp; | |
943 | } | |
944 | ||
17a6a2e0 | 945 | return true; |
d59ceba5 VZ |
946 | } |
947 | ||
9e2896e5 VZ |
948 | bool wxBitmapDataObject::SetData(const wxDataFormat& format, |
949 | size_t size, const void *pBuf) | |
d59ceba5 VZ |
950 | { |
951 | HBITMAP hbmp; | |
952 | if ( format.GetFormatId() == CF_DIB ) | |
953 | { | |
954 | // here we get BITMAPINFO struct followed by the actual bitmap bits and | |
955 | // BITMAPINFO starts with BITMAPINFOHEADER followed by colour info | |
956 | ScreenHDC hdc; | |
957 | ||
958 | BITMAPINFO *pbmi = (BITMAPINFO *)pBuf; | |
959 | BITMAPINFOHEADER *pbmih = &pbmi->bmiHeader; | |
960 | hbmp = CreateDIBitmap(hdc, pbmih, CBM_INIT, | |
961 | pbmi + 1, pbmi, DIB_RGB_COLORS); | |
962 | if ( !hbmp ) | |
963 | { | |
f6bcfd97 | 964 | wxLogLastError(wxT("CreateDIBitmap")); |
d59ceba5 VZ |
965 | } |
966 | ||
967 | m_bitmap.SetWidth(pbmih->biWidth); | |
968 | m_bitmap.SetHeight(pbmih->biHeight); | |
969 | } | |
970 | else // CF_BITMAP | |
971 | { | |
972 | // it's easy with bitmaps: we pass them by handle | |
973 | hbmp = *(HBITMAP *)pBuf; | |
974 | ||
975 | BITMAP bmp; | |
976 | if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) ) | |
977 | { | |
f6bcfd97 | 978 | wxLogLastError(wxT("GetObject(HBITMAP)")); |
d59ceba5 VZ |
979 | } |
980 | ||
981 | m_bitmap.SetWidth(bmp.bmWidth); | |
982 | m_bitmap.SetHeight(bmp.bmHeight); | |
983 | m_bitmap.SetDepth(bmp.bmPlanes); | |
984 | } | |
985 | ||
986 | m_bitmap.SetHBITMAP((WXHBITMAP)hbmp); | |
987 | ||
988 | wxASSERT_MSG( m_bitmap.Ok(), wxT("pasting invalid bitmap") ); | |
989 | ||
17a6a2e0 | 990 | return true; |
8e193f38 VZ |
991 | } |
992 | ||
9e2896e5 VZ |
993 | #endif // 0 |
994 | ||
995 | // ---------------------------------------------------------------------------- | |
996 | // wxFileDataObject | |
997 | // ---------------------------------------------------------------------------- | |
998 | ||
0c0d1521 WS |
999 | bool wxFileDataObject::SetData(size_t WXUNUSED(size), |
1000 | const void *WXUNUSED_IN_WINCE(pData)) | |
9e2896e5 | 1001 | { |
4676948b | 1002 | #ifndef __WXWINCE__ |
9e2896e5 VZ |
1003 | m_filenames.Empty(); |
1004 | ||
1005 | // the documentation states that the first member of DROPFILES structure is | |
1006 | // a "DWORD offset of double NUL terminated file list". What they mean by | |
1007 | // this (I wonder if you see it immediately) is that the list starts at | |
1008 | // ((char *)&(pDropFiles.pFiles)) + pDropFiles.pFiles. We're also advised | |
1009 | // to use DragQueryFile to work with this structure, but not told where and | |
1010 | // how to get HDROP. | |
1011 | HDROP hdrop = (HDROP)pData; // NB: it works, but I'm not sure about it | |
1012 | ||
1013 | // get number of files (magic value -1) | |
1014 | UINT nFiles = ::DragQueryFile(hdrop, (unsigned)-1, NULL, 0u); | |
1015 | ||
51edda6a VZ |
1016 | wxCHECK_MSG ( nFiles != (UINT)-1, FALSE, wxT("wrong HDROP handle") ); |
1017 | ||
9e2896e5 VZ |
1018 | // for each file get the length, allocate memory and then get the name |
1019 | wxString str; | |
1020 | UINT len, n; | |
1021 | for ( n = 0; n < nFiles; n++ ) { | |
1022 | // +1 for terminating NUL | |
1023 | len = ::DragQueryFile(hdrop, n, NULL, 0) + 1; | |
1024 | ||
de564874 | 1025 | UINT len2 = ::DragQueryFile(hdrop, n, wxStringBuffer(str, len), len); |
9e2896e5 VZ |
1026 | m_filenames.Add(str); |
1027 | ||
1028 | if ( len2 != len - 1 ) { | |
f6bcfd97 BP |
1029 | wxLogDebug(wxT("In wxFileDropTarget::OnDrop DragQueryFile returned\ |
1030 | %d characters, %d expected."), len2, len - 1); | |
9e2896e5 VZ |
1031 | } |
1032 | } | |
1033 | ||
17a6a2e0 | 1034 | return true; |
4676948b | 1035 | #else |
17a6a2e0 | 1036 | return false; |
4676948b | 1037 | #endif |
9e2896e5 VZ |
1038 | } |
1039 | ||
8b85d24e VZ |
1040 | void wxFileDataObject::AddFile(const wxString& file) |
1041 | { | |
1042 | // just add file to filenames array | |
1043 | // all useful data (such as DROPFILES struct) will be | |
1044 | // created later as necessary | |
1045 | m_filenames.Add(file); | |
1046 | } | |
1047 | ||
1048 | size_t wxFileDataObject::GetDataSize() const | |
1049 | { | |
4676948b | 1050 | #ifndef __WXWINCE__ |
150194b9 VZ |
1051 | // size returned will be the size of the DROPFILES structure, plus the list |
1052 | // of filesnames (null byte separated), plus a double null at the end | |
8b85d24e VZ |
1053 | |
1054 | // if no filenames in list, size is 0 | |
150194b9 | 1055 | if ( m_filenames.empty() ) |
dd10a646 | 1056 | return 0; |
8b85d24e | 1057 | |
150194b9 VZ |
1058 | #if wxUSE_UNICODE_MSLU |
1059 | size_t sizeOfChar; | |
dddf9e14 | 1060 | if ( wxGetOsVersion() == wxOS_WINDOWS_9X ) |
150194b9 VZ |
1061 | { |
1062 | // Win9x always uses ANSI file names and MSLU doesn't help with this | |
1063 | sizeOfChar = sizeof(char); | |
1064 | } | |
1065 | else | |
1066 | { | |
1067 | sizeOfChar = sizeof(wxChar); | |
1068 | } | |
1069 | #else // !wxUSE_UNICODE_MSLU | |
1070 | static const size_t sizeOfChar = sizeof(wxChar); | |
1071 | #endif // wxUSE_UNICODE_MSLU/!wxUSE_UNICODE_MSLU | |
1072 | ||
8b85d24e | 1073 | // inital size of DROPFILES struct + null byte |
150194b9 | 1074 | size_t sz = sizeof(DROPFILES) + sizeOfChar; |
8b85d24e | 1075 | |
150194b9 | 1076 | const size_t count = m_filenames.size(); |
dd10a646 | 1077 | for ( size_t i = 0; i < count; i++ ) |
8b85d24e VZ |
1078 | { |
1079 | // add filename length plus null byte | |
150194b9 VZ |
1080 | size_t len; |
1081 | #if wxUSE_UNICODE_MSLU | |
1082 | if ( sizeOfChar == sizeof(char) ) | |
1083 | len = strlen(wxConvFileName->cWC2MB(m_filenames[i])); | |
1084 | else | |
1085 | #endif // wxUSE_UNICODE_MSLU | |
1086 | len = m_filenames[i].length(); | |
1087 | ||
1088 | sz += (len + 1) * sizeOfChar; | |
8b85d24e | 1089 | } |
dd10a646 | 1090 | |
8b85d24e | 1091 | return sz; |
4676948b JS |
1092 | #else |
1093 | return 0; | |
1094 | #endif | |
8b85d24e VZ |
1095 | } |
1096 | ||
0c0d1521 | 1097 | bool wxFileDataObject::GetDataHere(void *WXUNUSED_IN_WINCE(pData)) const |
8b85d24e | 1098 | { |
4676948b | 1099 | #ifndef __WXWINCE__ |
8b85d24e VZ |
1100 | // pData points to an externally allocated memory block |
1101 | // created using the size returned by GetDataSize() | |
1102 | ||
1103 | // if pData is NULL, or there are no files, return | |
150194b9 | 1104 | if ( !pData || m_filenames.empty() ) |
17a6a2e0 | 1105 | return false; |
8b85d24e VZ |
1106 | |
1107 | // convert data pointer to a DROPFILES struct pointer | |
1108 | LPDROPFILES pDrop = (LPDROPFILES) pData; | |
1109 | ||
1110 | // initialize DROPFILES struct | |
1111 | pDrop->pFiles = sizeof(DROPFILES); | |
dd10a646 | 1112 | pDrop->fNC = FALSE; // not non-client coords |
150194b9 | 1113 | #if wxUSE_UNICODE_MSLU |
dddf9e14 | 1114 | pDrop->fWide = wxGetOsVersion() != wxOS_WINDOWS_9X ? TRUE : FALSE; |
150194b9 VZ |
1115 | #else |
1116 | pDrop->fWide = wxUSE_UNICODE; | |
1117 | #endif | |
1118 | ||
1119 | const size_t sizeOfChar = pDrop->fWide ? sizeof(wchar_t) : sizeof(char); | |
8b85d24e VZ |
1120 | |
1121 | // set start of filenames list (null separated) | |
150194b9 | 1122 | BYTE *pbuf = (BYTE *)(pDrop + 1); |
8b85d24e | 1123 | |
150194b9 VZ |
1124 | const size_t count = m_filenames.size(); |
1125 | for ( size_t i = 0; i < count; i++ ) | |
8b85d24e VZ |
1126 | { |
1127 | // copy filename to pbuf and add null terminator | |
150194b9 VZ |
1128 | size_t len; |
1129 | #if wxUSE_UNICODE_MSLU | |
1130 | if ( sizeOfChar == sizeof(char) ) | |
1131 | { | |
1132 | wxCharBuffer buf(wxConvFileName->cWC2MB(m_filenames[i])); | |
1133 | len = strlen(buf); | |
1134 | memcpy(pbuf, buf, len*sizeOfChar); | |
1135 | } | |
1136 | else | |
1137 | #endif // wxUSE_UNICODE_MSLU | |
1138 | { | |
1139 | len = m_filenames[i].length(); | |
1140 | memcpy(pbuf, m_filenames[i].c_str(), len*sizeOfChar); | |
1141 | } | |
1142 | ||
1143 | pbuf += len*sizeOfChar; | |
1144 | ||
1145 | memset(pbuf, 0, sizeOfChar); | |
1146 | pbuf += sizeOfChar; | |
8b85d24e | 1147 | } |
dd10a646 | 1148 | |
c5639a87 | 1149 | // add final null terminator |
150194b9 | 1150 | memset(pbuf, 0, sizeOfChar); |
8b85d24e | 1151 | |
17a6a2e0 | 1152 | return true; |
4676948b | 1153 | #else |
17a6a2e0 | 1154 | return false; |
4676948b | 1155 | #endif |
8b85d24e VZ |
1156 | } |
1157 | ||
444ad3a7 VZ |
1158 | // ---------------------------------------------------------------------------- |
1159 | // wxURLDataObject | |
1160 | // ---------------------------------------------------------------------------- | |
1161 | ||
4a09bc4e | 1162 | class CFSTR_SHELLURLDataObject : public wxCustomDataObject |
e1b435af MB |
1163 | { |
1164 | public: | |
1165 | CFSTR_SHELLURLDataObject() : wxCustomDataObject(CFSTR_SHELLURL) {} | |
6f02a879 | 1166 | |
574c939e | 1167 | virtual size_t GetBufferOffset( const wxDataFormat& WXUNUSED(format) ) |
e1b435af MB |
1168 | { |
1169 | return 0; | |
1170 | } | |
1171 | ||
1172 | virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size, | |
574c939e | 1173 | const wxDataFormat& WXUNUSED(format) ) |
e1b435af MB |
1174 | { |
1175 | // CFSTR_SHELLURL is _always_ ANSI text | |
1176 | *size = strlen( (const char*)buffer ); | |
1177 | ||
1178 | return buffer; | |
1179 | } | |
1180 | ||
574c939e KB |
1181 | virtual void* SetSizeInBuffer( void* buffer, size_t WXUNUSED(size), |
1182 | const wxDataFormat& WXUNUSED(format) ) | |
e1b435af MB |
1183 | { |
1184 | return buffer; | |
1185 | } | |
4a09bc4e | 1186 | |
e1b435af MB |
1187 | #if wxUSE_UNICODE |
1188 | virtual bool GetDataHere( void* buffer ) const | |
1189 | { | |
1190 | // CFSTR_SHELLURL is _always_ ANSI! | |
1191 | wxCharBuffer char_buffer( GetDataSize() ); | |
1192 | wxCustomDataObject::GetDataHere( (void*)char_buffer.data() ); | |
2b5f62a0 | 1193 | wxString unicode_buffer( char_buffer, wxConvLibc ); |
e1b435af MB |
1194 | memcpy( buffer, unicode_buffer.c_str(), |
1195 | ( unicode_buffer.length() + 1 ) * sizeof(wxChar) ); | |
1196 | ||
17a6a2e0 | 1197 | return true; |
e1b435af | 1198 | } |
7dbfc030 JS |
1199 | virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format), |
1200 | void *buf) const | |
1201 | { return GetDataHere(buf); } | |
e1b435af | 1202 | #endif |
2eb10e2a VZ |
1203 | |
1204 | DECLARE_NO_COPY_CLASS(CFSTR_SHELLURLDataObject) | |
e1b435af MB |
1205 | }; |
1206 | ||
4a09bc4e RD |
1207 | |
1208 | ||
0463eea9 | 1209 | wxURLDataObject::wxURLDataObject(const wxString& url) |
444ad3a7 VZ |
1210 | { |
1211 | // we support CF_TEXT and CFSTR_SHELLURL formats which are basicly the same | |
e1b435af | 1212 | // but it seems that some browsers only provide one of them so we have to |
444ad3a7 | 1213 | // support both |
444ad3a7 | 1214 | Add(new wxTextDataObject); |
e6d318c2 | 1215 | Add(new CFSTR_SHELLURLDataObject()); |
444ad3a7 VZ |
1216 | |
1217 | // we don't have any data yet | |
1218 | m_dataObjectLast = NULL; | |
0463eea9 VZ |
1219 | |
1220 | if ( !url.empty() ) | |
1221 | SetURL(url); | |
444ad3a7 VZ |
1222 | } |
1223 | ||
1224 | bool wxURLDataObject::SetData(const wxDataFormat& format, | |
1225 | size_t len, | |
1226 | const void *buf) | |
1227 | { | |
1228 | m_dataObjectLast = GetObject(format); | |
1229 | ||
1230 | wxCHECK_MSG( m_dataObjectLast, FALSE, | |
1231 | wxT("unsupported format in wxURLDataObject")); | |
1232 | ||
1233 | return m_dataObjectLast->SetData(len, buf); | |
1234 | } | |
1235 | ||
1236 | wxString wxURLDataObject::GetURL() const | |
1237 | { | |
1238 | wxString url; | |
1239 | wxCHECK_MSG( m_dataObjectLast, url, _T("no data in wxURLDataObject") ); | |
1240 | ||
1241 | size_t len = m_dataObjectLast->GetDataSize(); | |
1242 | ||
de564874 | 1243 | m_dataObjectLast->GetDataHere(wxStringBuffer(url, len)); |
444ad3a7 VZ |
1244 | |
1245 | return url; | |
1246 | } | |
1247 | ||
e6d318c2 RD |
1248 | void wxURLDataObject::SetURL(const wxString& url) |
1249 | { | |
4a09bc4e RD |
1250 | SetData(wxDataFormat(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT), |
1251 | url.Length()+1, url.c_str()); | |
1252 | ||
1253 | // CFSTR_SHELLURL is always supposed to be ANSI... | |
1254 | wxWX2MBbuf urlA = (wxWX2MBbuf)url.mbc_str(); | |
1255 | size_t len = strlen(urlA); | |
1256 | SetData(wxDataFormat(CFSTR_SHELLURL), len+1, (const char*)urlA); | |
e6d318c2 RD |
1257 | } |
1258 | ||
269a5a34 VZ |
1259 | // ---------------------------------------------------------------------------- |
1260 | // private functions | |
1261 | // ---------------------------------------------------------------------------- | |
8e193f38 VZ |
1262 | |
1263 | #ifdef __WXDEBUG__ | |
1264 | ||
d59ceba5 VZ |
1265 | static const wxChar *GetTymedName(DWORD tymed) |
1266 | { | |
1267 | static wxChar s_szBuf[128]; | |
1268 | switch ( tymed ) { | |
1269 | case TYMED_HGLOBAL: return wxT("TYMED_HGLOBAL"); | |
1270 | case TYMED_FILE: return wxT("TYMED_FILE"); | |
1271 | case TYMED_ISTREAM: return wxT("TYMED_ISTREAM"); | |
1272 | case TYMED_ISTORAGE: return wxT("TYMED_ISTORAGE"); | |
1273 | case TYMED_GDI: return wxT("TYMED_GDI"); | |
1274 | case TYMED_MFPICT: return wxT("TYMED_MFPICT"); | |
1275 | case TYMED_ENHMF: return wxT("TYMED_ENHMF"); | |
1276 | default: | |
dfd2e675 | 1277 | wxSprintf(s_szBuf, wxT("type of media format %ld (unknown)"), tymed); |
d59ceba5 VZ |
1278 | return s_szBuf; |
1279 | } | |
269a5a34 | 1280 | } |
5260b1c5 | 1281 | |
8e193f38 | 1282 | #endif // Debug |
2845ddc2 | 1283 | |
21709999 | 1284 | #else // not using OLE at all |
9205cb3f | 1285 | |
21709999 JS |
1286 | // ---------------------------------------------------------------------------- |
1287 | // wxDataObject | |
1288 | // ---------------------------------------------------------------------------- | |
1289 | ||
461dae94 VZ |
1290 | #if wxUSE_DATAOBJ |
1291 | ||
21709999 JS |
1292 | wxDataObject::wxDataObject() |
1293 | { | |
1294 | } | |
1295 | ||
1296 | wxDataObject::~wxDataObject() | |
1297 | { | |
1298 | } | |
1299 | ||
1300 | void wxDataObject::SetAutoDelete() | |
1301 | { | |
1302 | } | |
1303 | ||
bd52bee1 | 1304 | #ifdef __WXDEBUG__ |
9205cb3f | 1305 | const wxChar *wxDataObject::GetFormatName(wxDataFormat WXUNUSED(format)) |
21709999 JS |
1306 | { |
1307 | return NULL; | |
1308 | } | |
9205cb3f | 1309 | #endif // __WXDEBUG__ |
21709999 | 1310 | |
9205cb3f VZ |
1311 | #endif // wxUSE_DATAOBJ |
1312 | ||
1313 | #endif // wxUSE_OLE/!wxUSE_OLE | |
5260b1c5 | 1314 | |
461dae94 | 1315 |