コード例 #1
0
bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat)
{
   wxDataFormat::NativeFormat cf = dataFormat.GetFormatId();

    if ( ::IsClipboardFormatAvailable(cf) )
    {
        // ok from the first try
        return true;
    }

    // for several standard formats, we can convert from some other ones too
    switch ( cf )
    {
        // for bitmaps, DIBs will also do
        case CF_BITMAP:
            return ::IsClipboardFormatAvailable(CF_DIB) != 0;

#if wxUSE_ENH_METAFILE && !defined(__WXWINCE__)
        case CF_METAFILEPICT:
            return ::IsClipboardFormatAvailable(CF_ENHMETAFILE) != 0;
#endif // wxUSE_ENH_METAFILE

        default:
            return false;
    }
}
コード例 #2
0
ファイル: dataobj.cpp プロジェクト: hazeeq090576/wxWidgets
size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const
{
    if ( format.GetFormatId() == CF_DIB )
    {
        // create the DIB
        ScreenHDC hdc;

        // shouldn't be selected into a DC or GetDIBits() would fail
        wxASSERT_MSG( !m_bitmap.GetSelectedInto(),
                      wxT("can't copy bitmap selected into wxMemoryDC") );

        // first get the info
        BITMAPINFO bi;
        if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0,
                        NULL, &bi, DIB_RGB_COLORS) )
        {
            wxLogLastError(wxT("GetDIBits(NULL)"));

            return 0;
        }

        return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage;
    }
    else // CF_BITMAP
    {
        // no data to copy - we don't pass HBITMAP via global memory
        return 0;
    }
}
コード例 #3
0
///////////////////////////////////////////////////////////////////////////////
// Provides support for multiple clipboard formats.
// 
bool ClipboardDataObject::SetData( const wxDataFormat& format, size_t len, const void* buf )
{
    bool result = false;

    if ( format == GetFormat() )
    {
        // Editor clipboard format
        result = wxCustomDataObject::SetData( format, len, buf );
    }
    else if ( format.IsStandard() && format.GetFormatId() == wxDF_FILENAME )
    {
        // File name list format.  Convert to our own type of filename list.
        wxFileDataObject fileData;
        fileData.SetData( len, buf );

        if ( fileData.GetFilenames().size() > 0 )
        {
            ClipboardFileListPtr fileList = new ClipboardFileList();

            wxArrayString::const_iterator fileItr = fileData.GetFilenames().begin();
            wxArrayString::const_iterator fileEnd = fileData.GetFilenames().end();
            for ( ; fileItr != fileEnd; ++fileItr )
            {
                const wxChar* file = fileItr->c_str();
                fileList->AddFilePath( file );
            }

            result = ToBuffer( fileList );
        }
    }

    return result;
}
コード例 #4
0
ファイル: dataobj.cpp プロジェクト: hazeeq090576/wxWidgets
bool wxBitmapDataObject::SetData(const wxDataFormat& format,
                                 size_t size, const void *pBuf)
{
    HBITMAP hbmp;
    if ( format.GetFormatId() == CF_DIB )
    {
        // here we get BITMAPINFO struct followed by the actual bitmap bits and
        // BITMAPINFO starts with BITMAPINFOHEADER followed by colour info
        ScreenHDC hdc;

        BITMAPINFO *pbmi = (BITMAPINFO *)pBuf;
        BITMAPINFOHEADER *pbmih = &pbmi->bmiHeader;
        hbmp = CreateDIBitmap(hdc, pbmih, CBM_INIT,
                              pbmi + 1, pbmi, DIB_RGB_COLORS);
        if ( !hbmp )
        {
            wxLogLastError(wxT("CreateDIBitmap"));
        }

        m_bitmap.SetWidth(pbmih->biWidth);
        m_bitmap.SetHeight(pbmih->biHeight);
    }
    else // CF_BITMAP
    {
        // it's easy with bitmaps: we pass them by handle
        hbmp = *(HBITMAP *)pBuf;

        BITMAP bmp;
        if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
        {
            wxLogLastError(wxT("GetObject(HBITMAP)"));
        }

        m_bitmap.SetWidth(bmp.bmWidth);
        m_bitmap.SetHeight(bmp.bmHeight);
        m_bitmap.SetDepth(bmp.bmPlanes);
    }

    m_bitmap.SetHBITMAP((WXHBITMAP)hbmp);

    wxASSERT_MSG( m_bitmap.IsOk(), wxT("pasting invalid bitmap") );

    return true;
}
コード例 #5
0
ファイル: dataobj.cpp プロジェクト: hazeeq090576/wxWidgets
bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format,
                                     void *pBuf) const
{
    wxASSERT_MSG( m_bitmap.IsOk(), wxT("copying invalid bitmap") );

    HBITMAP hbmp = (HBITMAP)m_bitmap.GetHBITMAP();
    if ( format.GetFormatId() == CF_DIB )
    {
        // create the DIB
        ScreenHDC hdc;

        // shouldn't be selected into a DC or GetDIBits() would fail
        wxASSERT_MSG( !m_bitmap.GetSelectedInto(),
                      wxT("can't copy bitmap selected into wxMemoryDC") );

        // first get the info
        BITMAPINFO *pbi = (BITMAPINFO *)pBuf;
        if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) )
        {
            wxLogLastError(wxT("GetDIBits(NULL)"));

            return 0;
        }

        // and now copy the bits
        if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1,
                        pbi, DIB_RGB_COLORS) )
        {
            wxLogLastError(wxT("GetDIBits"));

            return false;
        }
    }
    else // CF_BITMAP
    {
        // we put a bitmap handle into pBuf
        *(HBITMAP *)pBuf = hbmp;
    }

    return true;
}