fixed crash on startup under GTK

[wxWidgets.git] / src / msw / ole / dataobj.cpp

diff --git a/src/msw/ole/dataobj.cpp b/src/msw/ole/dataobj.cpp
index 45d796c51cdb858f31c9990a1d01cde3267f5730..6a4ef3067093f861ca6eaf076866bf11a0d1e41d 100644 (file)
--- a/src/msw/ole/dataobj.cpp
+++ b/src/msw/ole/dataobj.cpp
@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "dataobj.h"
 #endif
 
@@ -39,8 +39,12 @@
 
 #include "wx/msw/private.h"         // includes <windows.h>
 
+#ifdef __WXWINCE__
+#include <winreg.h>
+#endif
+
 // for some compilers, the entire ole2.h must be included, not only oleauto.h
-#if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__)
+#if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__) || defined(__WXWINCE__)
   #include <ole2.h>
 #endif
 
@@ -62,7 +66,7 @@
 #ifdef __WXDEBUG__
     static const wxChar *GetTymedName(DWORD tymed);
 #else // !Debug
-    #define GetTymedName(tymed) _T("")
+    #define GetTymedName(tymed) wxEmptyString
 #endif // Debug/!Debug
 
 // ----------------------------------------------------------------------------
@@ -153,8 +157,7 @@ wxString wxDataFormat::GetId() const
     wxCHECK_MSG( !IsStandard(), s,
                  wxT("name of predefined format cannot be retrieved") );
 
-    int len = ::GetClipboardFormatName(m_format, s.GetWriteBuf(max), max);
-    s.UngetWriteBuf();
+    int len = ::GetClipboardFormatName(m_format, wxStringBuffer(s, max), max);
 
     if ( !len )
     {
@@ -187,31 +190,27 @@ wxIEnumFORMATETC::wxIEnumFORMATETC(const wxDataFormat *formats, ULONG nCount)
 
 STDMETHODIMP wxIEnumFORMATETC::Next(ULONG      celt,
                                     FORMATETC *rgelt,
-                                    ULONG     *WXUNUSED(pceltFetched))
+                                    ULONG     *pceltFetched)
 {
     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Next"));
 
-    if ( celt > 1 ) {
-        // we only return 1 element at a time - mainly because I'm too lazy to
-        // implement something which you're never asked for anyhow
-        return S_FALSE;
-    }
-
-    if ( m_nCurrent < m_nCount ) {
+    ULONG numFetched = 0;
+    while (m_nCurrent < m_nCount && numFetched < celt) {
         FORMATETC format;
         format.cfFormat = m_formats[m_nCurrent++];
         format.ptd      = NULL;
         format.dwAspect = DVASPECT_CONTENT;
         format.lindex   = -1;
         format.tymed    = TYMED_HGLOBAL;
-        *rgelt = format;
 
-        return S_OK;
-    }
-    else {
-        // bad index
-        return S_FALSE;
+        *rgelt++ = format;
+        numFetched++;
     }
+
+    if (pceltFetched)
+        *pceltFetched = numFetched;
+
+    return numFetched == celt ? S_OK : S_FALSE;
 }
 
 STDMETHODIMP wxIEnumFORMATETC::Skip(ULONG celt)
@@ -303,6 +302,7 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
             pmedium->tymed = TYMED_ENHMF;
             break;
 
+#ifndef __WXWINCE__
         case wxDF_METAFILE:
             pmedium->hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
                                            sizeof(METAFILEPICT));
@@ -312,7 +312,7 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
             }
             pmedium->tymed = TYMED_MFPICT;
             break;
-
+#endif
         default:
             // alloc memory
             size_t size = m_pDataObject->GetDataSize(format);
@@ -410,6 +410,7 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
     return S_OK;
 }
 
+
 // set data functions
 STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                                     STGMEDIUM *pmedium,
@@ -475,11 +476,13 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                         break;
 #endif
                     case CF_BITMAP:
+#ifndef __WXWINCE__
                     case CF_HDROP:
                         // these formats don't use size at all, anyhow (but
                         // pass data by handle, which is always a single DWORD)
                         size = 0;
                         break;
+#endif
 
                     case CF_DIB:
                         // the handler will calculate size itself (it's too
@@ -487,10 +490,11 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                         size = 0;
                         break;
 
+#ifndef __WXWINCE__
                     case CF_METAFILEPICT:
                         size = sizeof(METAFILEPICT);
                         break;
-
+#endif
                     default:
                         {
                             // we suppose that the size precedes the data
@@ -757,18 +761,27 @@ const wxChar *wxDataObject::GetFormatName(wxDataFormat format)
 
 size_t wxBitmapDataObject::GetDataSize() const
 {
+#if wxUSE_WXDIB
     return wxDIB::ConvertFromBitmap(NULL, GetHbitmapOf(GetBitmap()));
+#else
+    return 0;
+#endif
 }
 
 bool wxBitmapDataObject::GetDataHere(void *buf) const
 {
+#if wxUSE_WXDIB
     BITMAPINFO * const pbi = (BITMAPINFO *)buf;
 
     return wxDIB::ConvertFromBitmap(pbi, GetHbitmapOf(GetBitmap())) != 0;
+#else
+    return FALSE;
+#endif
 }
 
 bool wxBitmapDataObject::SetData(size_t WXUNUSED(len), const void *buf)
 {
+#if wxUSE_WXDIB
     const BITMAPINFO * const pbmi = (const BITMAPINFO *)buf;
 
     HBITMAP hbmp = wxDIB::ConvertToBitmap(pbmi);
@@ -784,6 +797,9 @@ bool wxBitmapDataObject::SetData(size_t WXUNUSED(len), const void *buf)
     SetBitmap(bitmap);
 
     return TRUE;
+#else
+    return FALSE;
+#endif
 }
 
 // ----------------------------------------------------------------------------
@@ -959,6 +975,7 @@ bool wxBitmapDataObject::SetData(const wxDataFormat& format,
 
 bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData)
 {
+#ifndef __WXWINCE__
     m_filenames.Empty();
 
     // the documentation states that the first member of DROPFILES structure is
@@ -981,8 +998,7 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData)
         // +1 for terminating NUL
         len = ::DragQueryFile(hdrop, n, NULL, 0) + 1;
 
-        UINT len2 = ::DragQueryFile(hdrop, n, str.GetWriteBuf(len), len);
-        str.UngetWriteBuf();
+        UINT len2 = ::DragQueryFile(hdrop, n, wxStringBuffer(str, len), len);
         m_filenames.Add(str);
 
         if ( len2 != len - 1 ) {
@@ -992,6 +1008,9 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData)
     }
 
     return TRUE;
+#else
+    return FALSE;
+#endif
 }
 
 void wxFileDataObject::AddFile(const wxString& file)
@@ -1004,6 +1023,7 @@ void wxFileDataObject::AddFile(const wxString& file)
 
 size_t wxFileDataObject::GetDataSize() const
 {
+#ifndef __WXWINCE__
     // size returned will be the size of the DROPFILES structure,
     // plus the list of filesnames (null byte separated), plus
     // a double null at the end
@@ -1023,10 +1043,14 @@ size_t wxFileDataObject::GetDataSize() const
     }
 
     return sz;
+#else
+    return 0;
+#endif
 }
 
 bool wxFileDataObject::GetDataHere(void *pData) const
 {
+#ifndef __WXWINCE__
     // pData points to an externally allocated memory block
     // created using the size returned by GetDataSize()
 
@@ -1063,6 +1087,9 @@ bool wxFileDataObject::GetDataHere(void *pData) const
     *pbuf = wxT('\0');
 
     return TRUE;
+#else
+    return FALSE;
+#endif
 }
 
 // ----------------------------------------------------------------------------
@@ -1106,7 +1133,12 @@ protected:
 
         return TRUE;
     }
+    virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
+                             void *buf) const
+        { return GetDataHere(buf); }
 #endif
+
+    DECLARE_NO_COPY_CLASS(CFSTR_SHELLURLDataObject)
 };
 
 
@@ -1142,8 +1174,7 @@ wxString wxURLDataObject::GetURL() const
 
     size_t len = m_dataObjectLast->GetDataSize();
 
-    m_dataObjectLast->GetDataHere(url.GetWriteBuf(len));
-    url.UngetWriteBuf();
+    m_dataObjectLast->GetDataHere(wxStringBuffer(url, len));
 
     return url;
 }