bool wxClipboard::IsSupported(const wxDataFormat& format)
{
Display* xdisplay = wxGlobalDisplay();
Window xwindow = XtWindow( (Widget)wxTheApp->GetTopLevelRealizedWidget() );
bool isSupported = false;
int retval, count;
unsigned long max_name_length;
wxString id = format.GetId();
while( ( retval = XmClipboardLock( xdisplay, xwindow ) )
== XmClipboardLocked );
if( retval != XmClipboardSuccess )
return false;
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';
if( buf == id )
{
isSupported = true;
break;
}
}
}
XmClipboardUnlock( xdisplay, xwindow, False );
return isSupported;
}
static int motClipboardIsAvailable(const char* format_name)
{
Window window = motClipboardGetWindow();
int count, i;
unsigned long max_length, length;
char* str;
/* number of targets that exists on the clipboard */
if (XmClipboardInquireCount(iupmot_display, window, &count, &max_length) != ClipboardSuccess)
return 0;
str = iupStrGetMemory(max_length+1);
for (i = 1; i<=count; i++)
{
if (XmClipboardInquireFormat(iupmot_display, window, i, str, max_length+1, &length)==ClipboardSuccess)
{
if (iupStrEqualNoCase(str, format_name))
return 1;
}
}
return 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;
}