+void wxFileDataObject::AddFile(const wxString& file)
+{
+ // just add file to filenames array
+ // all useful data (such as DROPFILES struct) will be
+ // created later as necessary
+ m_filenames.Add(file);
+}
+
+size_t wxFileDataObject::GetDataSize() const
+{
+ // 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
+
+ // if no filenames in list, size is 0
+ if ( m_filenames.GetCount() == 0 )
+ return 0;
+
+ // inital size of DROPFILES struct + null byte
+ size_t sz = sizeof(DROPFILES) + 1;
+
+ size_t count = m_filenames.GetCount();
+ for ( size_t i = 0; i < count; i++ )
+ {
+ // add filename length plus null byte
+ sz += m_filenames[i].Len() + 1;
+ }
+
+ return sz;
+}
+
+bool wxFileDataObject::GetDataHere(void *pData) const
+{
+ // pData points to an externally allocated memory block
+ // created using the size returned by GetDataSize()
+
+ // if pData is NULL, or there are no files, return
+ if ( !pData || m_filenames.GetCount() == 0 )
+ return FALSE;
+
+ // convert data pointer to a DROPFILES struct pointer
+ LPDROPFILES pDrop = (LPDROPFILES) pData;
+
+ // initialize DROPFILES struct
+ pDrop->pFiles = sizeof(DROPFILES);
+ pDrop->fNC = FALSE; // not non-client coords
+#if wxUSE_UNICODE
+ pDrop->fWide = TRUE;
+#else // ANSI
+ pDrop->fWide = FALSE;
+#endif // Unicode/Ansi
+
+ // set start of filenames list (null separated)
+ wxChar *pbuf = (wxChar*) ((BYTE *)pDrop + sizeof(DROPFILES));
+
+ size_t count = m_filenames.GetCount();
+ for (size_t i = 0; i < count; i++ )
+ {
+ // copy filename to pbuf and add null terminator
+ size_t len = m_filenames[i].Len();
+ memcpy(pbuf, m_filenames[i], len);
+ pbuf += len;
+ *pbuf++ = wxT('\0');
+ }
+
+ // add final null terminator
+ *pbuf = wxT('\0');
+
+ return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// wxURLDataObject
+// ----------------------------------------------------------------------------
+
+class CFSTR_SHELLURLDataObject:public wxCustomDataObject
+{
+public:
+ CFSTR_SHELLURLDataObject() : wxCustomDataObject(CFSTR_SHELLURL) {}
+protected:
+ virtual size_t GetBufferOffset( const wxDataFormat& WXUNUSED(format) )
+ {
+ return 0;
+ }
+
+ virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
+ const wxDataFormat& WXUNUSED(format) )
+ {
+ // CFSTR_SHELLURL is _always_ ANSI text
+ *size = strlen( (const char*)buffer );
+
+ return buffer;
+ }
+
+ virtual void* SetSizeInBuffer( void* buffer, size_t WXUNUSED(size),
+ const wxDataFormat& WXUNUSED(format) )
+ {
+ return buffer;
+ }
+#if wxUSE_UNICODE
+ virtual bool GetDataHere( void* buffer ) const
+ {
+ // CFSTR_SHELLURL is _always_ ANSI!
+ wxCharBuffer char_buffer( GetDataSize() );
+ wxCustomDataObject::GetDataHere( (void*)char_buffer.data() );
+ wxString unicode_buffer( char_buffer );
+ memcpy( buffer, unicode_buffer.c_str(),
+ ( unicode_buffer.length() + 1 ) * sizeof(wxChar) );
+
+ return TRUE;
+ }
+#endif
+};
+
+wxURLDataObject::wxURLDataObject()
+{
+ // we support CF_TEXT and CFSTR_SHELLURL formats which are basicly the same
+ // but it seems that some browsers only provide one of them so we have to
+ // support both
+ Add(new wxTextDataObject);
+ Add(new CFSTR_SHELLURLDataObject());
+
+ // we don't have any data yet
+ m_dataObjectLast = NULL;
+}
+
+bool wxURLDataObject::SetData(const wxDataFormat& format,
+ size_t len,
+ const void *buf)
+{
+ m_dataObjectLast = GetObject(format);
+
+ wxCHECK_MSG( m_dataObjectLast, FALSE,
+ wxT("unsupported format in wxURLDataObject"));
+
+ return m_dataObjectLast->SetData(len, buf);
+}
+
+wxString wxURLDataObject::GetURL() const
+{
+ wxString url;
+ wxCHECK_MSG( m_dataObjectLast, url, _T("no data in wxURLDataObject") );
+
+ size_t len = m_dataObjectLast->GetDataSize();
+
+ m_dataObjectLast->GetDataHere(url.GetWriteBuf(len));
+ url.UngetWriteBuf();
+
+ return url;
+}
+
+void wxURLDataObject::SetURL(const wxString& url)
+{
+ SetData(wxDataFormat(wxDF_TEXT), url.Length()+1, url.c_str());
+ SetData(wxDataFormat(CFSTR_SHELLURL), url.Length()+1, url.c_str());
+}
+
projects / wxWidgets.git / blobdiff