Example #1
0
bool wxClipboard::GetData( wxDataObject& data )
{
    if ( IsUsingPrimarySelection() )
        return false;

    wxCHECK_MSG( m_open, false, wxT("clipboard not open") );

    size_t formatcount = data.GetFormatCount() + 1;
    wxDataFormat *array = new wxDataFormat[ formatcount ];
    array[0] = data.GetPreferredFormat();
    data.GetAllFormats( &array[1] );

    bool transferred = false;

    if ( m_data )
    {
        for (size_t i = 0; !transferred && i < formatcount; i++)
        {
            wxDataFormat format = array[ i ];
            if ( m_data->IsSupported( format ) )
            {
                int dataSize = m_data->GetDataSize( format );
                transferred = true;

                if (dataSize == 0)
                {
                    data.SetData( format, 0, 0 );
                }
                else
                {
                    char *d = new char[ dataSize ];
                    m_data->GetDataHere( format, (void*)d );
                    data.SetData( format, dataSize, d );
                    delete [] d;
                }
            }
        }
    }

    // get formats from wxDataObjects
    if ( !transferred )
    {
        transferred = data.GetFromPasteboard( m_pasteboard ) ;
    }

    delete [] array;

    return transferred;
}
Example #2
0
// get the data for a specific wxDataFormat that stored as a property in Root window
void GetClipboardData(Display* disp, Window win, wxDataObject &data, wxDataFormat dfFormat)
{
    unsigned char *clipbrdData = NULL;

    // some variables that used to get the data in window property
    unsigned long len;

    switch ( dfFormat )
    {
        case wxDF_INVALID:
        {
            return;
        }
        case wxDF_BITMAP:
        {
            wxVector<Atom> atomVector;
            atomVector.push_back(XA_IMAGE_BMP);
            atomVector.push_back(XA_IMAGE_JPG);
            atomVector.push_back(XA_IMAGE_TIFF);
            atomVector.push_back(XA_IMAGE_PNG);

            // check the four atoms in clipboard, try to find whether there has data
            // stored in one of these atom.
            for ( unsigned i = 0; i < atomVector.size(); i++ )
            {

                clipbrdData  = GetClipboardDataByFormat(disp, win, XA_CLIPBOARD,
                                                        atomVector.at(i), &len);
                if ( clipbrdData != NULL )
                    break;
            }
            // if we got any data, copy it.
            if ( clipbrdData )
            {
                data.SetData(dfFormat, len, (char*)clipbrdData);
            }
            break;
        }
        default:
        {
            clipbrdData  = GetClipboardDataByFormat(disp, win, XA_CLIPBOARD, XA_UTF8_STRING, &len);
            // if we got any data, copy it.
            if ( clipbrdData  )
            {
                data.SetData(dfFormat, len, (char*)clipbrdData);
            }
        }
    }
}
Example #3
0
void CIDataObject::SetData (
  const wxDataFormat&               rFormat
, char*                             pzBuffer
)
{
    ULONG                           ulSize = 0;

    switch (rFormat.GetType())
    {
        case wxDF_TEXT:
        case wxDF_OEMTEXT:
        case wxDF_FILENAME:
        case wxDF_HTML:
            ulSize = strlen((const char *)pzBuffer);
            break;

#if wxUSE_UNICODE
        case wxDF_UNICODETEXT:
             ulSize = ::wcslen((const wchar_t *)pzBuffer);
             break;
#endif

        case wxDF_BITMAP:
        case wxDF_METAFILE:
        case wxDF_ENHMETAFILE:
        case wxDF_TIFF:
        case wxDF_DIB:
            ulSize = 0; // pass via a handle
            break;


        case wxDF_SYLK:
        case wxDF_DIF:
        case wxDF_PALETTE:
        case wxDF_PENDATA:
        case wxDF_RIFF:
        case wxDF_WAVE:
        case wxDF_LOCALE:
            //PUNT
            break;

        case wxDF_PRIVATE:
            size_t*                 p = (size_t *)pzBuffer;

            ulSize = *p++;
            pzBuffer = (char*)p;
            break;
    }
    m_pDataObject->SetData( rFormat
                           ,ulSize
                           ,(void*)pzBuffer
                          );
} // end of CIDataObject::SetData
Example #4
0
bool wxClipboard::GetData( wxDataObject& data )
{
    wxCHECK_MSG( m_open, false, "clipboard not open" );

    Display* xdisplay = wxGlobalDisplay();
    Window xwindow = XtWindow( (Widget)wxTheApp->GetTopLevelRealizedWidget() );
    Time timestamp = XtLastTimestampProcessed( xdisplay );

    wxDataFormat chosenFormat;
    int retval;

    ///////////////////////////////////////////////////////////////////////////
    // determine if the cliboard holds any format we like
    ///////////////////////////////////////////////////////////////////////////
    while( ( retval = XmClipboardStartRetrieve( xdisplay, xwindow,
                      timestamp ) )
            == XmClipboardLocked );
    if( retval != XmClipboardSuccess )
        return false;

    wxClipboardEndRetrieve endRetrieve( xdisplay, xwindow );

    int count;
    unsigned long max_name_length;
    size_t dfcount = data.GetFormatCount( wxDataObject::Set );
    wxDataFormatScopedArray dfarr(dfcount);
    data.GetAllFormats( dfarr.get(), wxDataObject::Set );

    if( XmClipboardInquireCount( xdisplay, xwindow, &count, &max_name_length )
            == XmClipboardSuccess )
    {
        wxCharBuffer buf( max_name_length + 1 );
        unsigned long copied;

        for( int i = 0; i < count; ++i )
        {
            if( XmClipboardInquireFormat( xdisplay, xwindow, i + 1,
                                          (XtPointer)buf.data(),
                                          max_name_length, &copied )
                    != XmClipboardSuccess )
                continue;

            buf.data()[copied] = '\0';

            // try preferred format
            if( buf == data.GetPreferredFormat( wxDataObject::Set ).GetId() )
            {
                chosenFormat = data.GetPreferredFormat( wxDataObject::Set );
                break;
            }

            // try all other formats
            for( size_t i = 0; i < dfcount; ++i )
            {
                if( buf == dfarr[i].GetId() )
                    chosenFormat = dfarr[i];
            }
        }
    }

    if( chosenFormat == wxDF_INVALID )
        return false;

    ///////////////////////////////////////////////////////////////////////////
    // now retrieve the data
    ///////////////////////////////////////////////////////////////////////////
    unsigned long length, dummy1;
    long dummy2;
    wxString id = chosenFormat.GetId();

    while( ( retval = XmClipboardInquireLength( xdisplay, xwindow,
                      id.char_str(),
                      &length ) )
            == XmClipboardLocked );
    if( retval != XmClipboardSuccess )
        return false;

    wxCharBuffer buf(length);

    while( ( retval = XmClipboardRetrieve( xdisplay, xwindow,
                                           id.char_str(),
                                           (XtPointer)buf.data(),
                                           length, &dummy1, &dummy2 ) )
            == XmClipboardLocked );
    if( retval != XmClipboardSuccess )
        return false;

    if( !data.SetData( chosenFormat, length, buf.data() ) )
        return false;

    return true;
}
Example #5
0
// set data functions
STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                                    STGMEDIUM *pmedium,
                                    BOOL       fRelease)
{
    wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::SetData"));

    switch ( pmedium->tymed )
    {
        case TYMED_GDI:
            m_pDataObject->SetData(wxDF_BITMAP, 0, &pmedium->hBitmap);
            break;

        case TYMED_ENHMF:
            m_pDataObject->SetData(wxDF_ENHMETAFILE, 0, &pmedium->hEnhMetaFile);
            break;

        case TYMED_ISTREAM:
            // check if this format is supported
            if ( !m_pDataObject->IsSupported(pformatetc->cfFormat,
                                             wxDataObject::Set) )
            {
                // As this is not a supported format (content data), assume it
                // is system data and save it.
                return SaveSystemData(pformatetc, pmedium, fRelease);
            }
            break;

        case TYMED_MFPICT:
            // fall through - we pass METAFILEPICT through HGLOBAL
        case TYMED_HGLOBAL:
            {
                wxDataFormat format = pformatetc->cfFormat;

                format = HtmlFormatFixup(format);

                // check if this format is supported
                if ( !m_pDataObject->IsSupported(format, wxDataObject::Set) ) {
                    // As above, assume that unsupported format must be system
                    // data and just save it.
                    return SaveSystemData(pformatetc, pmedium, fRelease);
                }

                // copy data
                const void *pBuf = GlobalLock(pmedium->hGlobal);
                if ( pBuf == NULL ) {
                    wxLogLastError(wxT("GlobalLock"));

                    return E_OUTOFMEMORY;
                }

                // we've got a problem with SetData() here because the base
                // class version requires the size parameter which we don't
                // have anywhere in OLE data transfer - so we need to
                // synthetise it for known formats and we suppose that all data
                // in custom formats starts with a DWORD containing the size
                size_t size;
                switch ( format )
                {
                    case wxDF_HTML:
                    case CF_TEXT:
                    case CF_OEMTEXT:
                        size = strlen((const char *)pBuf);
                        break;
#if !(defined(__BORLANDC__) && (__BORLANDC__ < 0x500))
                    case CF_UNICODETEXT:
#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) )
                        size = std::wcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
#else
                        size = wxWcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
#endif
                        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
                        // complicated to do it here)
                        size = 0;
                        break;

#ifndef __WXWINCE__
                    case CF_METAFILEPICT:
                        size = sizeof(METAFILEPICT);
                        break;
#endif
                    default:
                        pBuf = m_pDataObject->
                                    GetSizeFromBuffer(pBuf, &size, format);
                        size -= m_pDataObject->GetBufferOffset(format);
                }

                bool ok = m_pDataObject->SetData(format, size, pBuf);

                GlobalUnlock(pmedium->hGlobal);

                if ( !ok ) {
                    return E_UNEXPECTED;
                }
            }
            break;

        default:
            return DV_E_TYMED;
    }

    if ( fRelease ) {
        // we own the medium, so we must release it - but do *not* free any
        // data we pass by handle because we have copied it elsewhere
        switch ( pmedium->tymed )
        {
            case TYMED_GDI:
                pmedium->hBitmap = 0;
                break;

            case TYMED_MFPICT:
                pmedium->hMetaFilePict = 0;
                break;

            case TYMED_ENHMF:
                pmedium->hEnhMetaFile = 0;
                break;
        }

        ReleaseStgMedium(pmedium);
    }

    return S_OK;
}