bool wxDropTarget::CurrentDragHasSupportedFormat()
{
bool supported = false;
if ( gTrackingGlobals.m_currentSource != NULL )
{
wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject();
if ( data )
{
size_t formatcount = data->GetFormatCount();
wxDataFormat *array = new wxDataFormat[formatcount];
data->GetAllFormats( array );
for (size_t i = 0; !supported && i < formatcount; i++)
{
wxDataFormat format = array[i];
if ( m_dataObject->IsSupported( format ) )
{
supported = true;
break;
}
}
delete [] array;
}
}
if ( !supported )
{
UInt16 items;
ItemReference theItem;
FlavorType theType;
UInt16 flavors = 0;
CountDragItems( (DragReference)m_currentDrag, &items );
for (UInt16 index = 1; index <= items && !supported; ++index)
{
flavors = 0;
GetDragItemReferenceNumber( (DragReference)m_currentDrag, index, &theItem );
CountDragItemFlavors( (DragReference)m_currentDrag, theItem, &flavors );
for ( UInt16 flavor = 1; flavor <= flavors; ++flavor )
{
GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType );
if ( m_dataObject->IsSupportedFormat( wxDataFormat( theType ) ) )
{
supported = true;
break;
}
}
}
}
return supported;
}
static PyObject *DragObj_CountDragItems(DragObjObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
OSErr _err;
UInt16 numItems;
#ifndef CountDragItems
PyMac_PRECHECK(CountDragItems);
#endif
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_err = CountDragItems(_self->ob_itself,
&numItems);
if (_err != noErr) return PyMac_Error(_err);
_res = Py_BuildValue("H",
numItems);
return _res;
}
pascal OSErr DragReceiveFunc(
WindowPtr /*window*/,
void* /*theRefCon*/,
DragReference drag)
{
long i;
char* data;
unsigned short numFlavors;
Size dataSize;
ItemReference theItem;
unsigned short itemCount;
FlavorType flavor;
if( recieveHiliting )
{
int oldListEnd=mac_n_files;
CountDragItems(drag, &itemCount);
for( i=1; i<=itemCount; i++)
{
GetDragItemReferenceNumber(drag, i, &theItem);
if( noErr!=CountDragItemFlavors(drag, theItem, &numFlavors))
continue;
if( noErr!=GetFlavorType(drag, theItem, 1, &flavor))
continue;
if( noErr!=GetFlavorDataSize(drag, theItem, flavor, &dataSize))
continue;
data= (char*)malloc(dataSize);
if( data==0 ) continue;
if( noErr!=GetFlavorData(drag, theItem, flavor,
data, &dataSize, 0))
continue;
if(flavor== flavorTypeHFS)
AddHFS2PlayList((HFSFlavor*)data);
free(data);
}
if( gShuffle ) ShuffleList( oldListEnd, mac_n_files);
}
return noErr;
}
bool wxDropTarget::GetData()
{
if (!m_dataObject)
return FALSE;
if ( !CurrentDragHasSupportedFormat() )
return FALSE ;
bool transferred = false ;
if ( gTrackingGlobals.m_currentSource != NULL )
{
wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject() ;
if ( data )
{
size_t formatcount = data->GetFormatCount() ;
wxDataFormat *array = new wxDataFormat[ formatcount ];
data->GetAllFormats( array );
for (size_t i = 0; !transferred && i < formatcount ; i++)
{
wxDataFormat format = array[i] ;
if ( m_dataObject->IsSupported( format ) )
{
int size = data->GetDataSize( format );
transferred = true ;
if (size == 0)
{
m_dataObject->SetData(format , 0 , 0 ) ;
}
else
{
char *d = new char[size];
data->GetDataHere( format , (void*) d );
m_dataObject->SetData( format , size , d ) ;
delete[] d ;
}
}
}
delete[] array ;
}
}
if ( !transferred )
{
UInt16 items ;
OSErr result;
bool firstFileAdded = false ;
CountDragItems((DragReference)m_currentDrag, &items);
for (UInt16 index = 1; index <= items; ++index)
{
ItemReference theItem;
FlavorType theType ;
UInt16 flavors = 0 ;
GetDragItemReferenceNumber((DragReference)m_currentDrag, index, &theItem);
CountDragItemFlavors( (DragReference)m_currentDrag, theItem , &flavors ) ;
for ( UInt16 flavor = 1 ; flavor <= flavors ; ++flavor )
{
result = GetFlavorType((DragReference)m_currentDrag, theItem, flavor , &theType);
wxDataFormat format(theType) ;
if ( m_dataObject->IsSupportedFormat( format ) )
{
FlavorFlags theFlags;
result = GetFlavorFlags((DragReference)m_currentDrag, theItem, theType, &theFlags);
if (result == noErr)
{
Size dataSize ;
Ptr theData ;
GetFlavorDataSize((DragReference)m_currentDrag, theItem, theType, &dataSize);
if ( theType == 'TEXT' )
{
// this increment is only valid for allocating, on the next GetFlavorData
// call it is reset again to the original value
dataSize++ ;
}
theData = new char[dataSize];
GetFlavorData((DragReference)m_currentDrag, theItem, theType, (void*) theData, &dataSize, 0L);
if( theType == 'TEXT' )
{
theData[dataSize]=0 ;
wxString convert( theData , wxConvLocal ) ;
m_dataObject->SetData( format, convert.Length() * sizeof(wxChar), (const wxChar*) convert );
}
else if ( theType == kDragFlavorTypeHFS )
{
HFSFlavor* theFile = (HFSFlavor*) theData ;
wxString name = wxMacFSSpec2MacFilename( &theFile->fileSpec ) ;
if ( firstFileAdded )
((wxFileDataObject*)m_dataObject)->AddFile( name ) ;
else
{
((wxFileDataObject*)m_dataObject)->SetData( 0 , name.c_str() ) ;
firstFileAdded = true ;
}
}
else
{
m_dataObject->SetData( format, dataSize, theData );
}
delete[] theData;
}
break ;
}
}
}
}
return TRUE ;
}
bool wxDropTarget::GetData()
{
if (m_dataObject == NULL)
return false;
if ( !CurrentDragHasSupportedFormat() )
return false;
bool transferred = false;
if ( gTrackingGlobals.m_currentSource != NULL )
{
wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject();
if (data != NULL)
{
size_t formatcount = data->GetFormatCount();
wxDataFormat *array = new wxDataFormat[formatcount];
data->GetAllFormats( array );
for (size_t i = 0; !transferred && i < formatcount; i++)
{
wxDataFormat format = array[i];
if ( m_dataObject->IsSupported( format ) )
{
int size = data->GetDataSize( format );
transferred = true;
if (size == 0)
{
m_dataObject->SetData( format, 0, 0 );
}
else
{
char *d = new char[size];
data->GetDataHere( format, (void*)d );
m_dataObject->SetData( format, size, d );
delete [] d;
}
}
}
delete [] array;
}
}
if ( !transferred )
{
UInt16 items;
OSErr result;
ItemReference theItem;
FlavorType theType;
FlavorFlags theFlags;
UInt16 flavors;
wxString filenamesPassed;
CountDragItems( (DragReference)m_currentDrag, &items );
for (UInt16 index = 1; index <= items; ++index)
{
flavors = 0;
GetDragItemReferenceNumber( (DragReference)m_currentDrag, index, &theItem );
CountDragItemFlavors( (DragReference)m_currentDrag, theItem, &flavors );
wxDataFormat preferredFormat = m_dataObject->GetPreferredFormat( wxDataObject::Set );
bool hasPreferredFormat = false;
for (UInt16 flavor = 1; flavor <= flavors; ++flavor)
{
result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType );
wxDataFormat format( theType );
if (preferredFormat == format)
{
hasPreferredFormat = true;
break;
}
}
for (UInt16 flavor = 1; flavor <= flavors; ++flavor)
{
result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType );
wxDataFormat format( theType );
if ((hasPreferredFormat && format == preferredFormat)
|| (!hasPreferredFormat && m_dataObject->IsSupportedFormat( format )))
{
result = GetFlavorFlags( (DragReference)m_currentDrag, theItem, theType, &theFlags );
if (result == noErr)
{
Size dataSize;
Ptr theData;
GetFlavorDataSize( (DragReference)m_currentDrag, theItem, theType, &dataSize );
if (theType == kScrapFlavorTypeText)
{
// this increment is only valid for allocating:
// on the next GetFlavorData call it is reset again to the original value
dataSize++;
}
else if (theType == kScrapFlavorTypeUnicode)
{
// this increment is only valid for allocating:
// on the next GetFlavorData call it is reset again to the original value
dataSize++;
dataSize++;
}
if (dataSize > 0)
theData = new char[dataSize];
else
theData = NULL;
GetFlavorData( (DragReference)m_currentDrag, theItem, theType, (void*)theData, &dataSize, 0L );
switch (theType)
{
case kScrapFlavorTypeText:
theData[dataSize] = 0;
m_dataObject->SetData( wxDataFormat(wxDF_TEXT), dataSize, theData );
break;
#if wxUSE_UNICODE
case kScrapFlavorTypeUnicode:
theData[dataSize + 0] =
theData[dataSize + 1] = 0;
m_dataObject->SetData( wxDataFormat(wxDF_UNICODETEXT), dataSize, theData );
break;
#endif
case kDragFlavorTypeHFS:
if (theData != NULL)
{
HFSFlavor* theFile = (HFSFlavor*)theData;
#ifndef __LP64__
wxString name = wxMacFSSpec2MacFilename( &theFile->fileSpec );
if (!name.empty())
filenamesPassed += name + wxT("\n");
#endif
}
break;
default:
m_dataObject->SetData( format, dataSize, theData );
break;
}
delete [] theData;
}
break;
}
}
}
if (filenamesPassed.length() > 0)
{
wxCharBuffer buf = filenamesPassed.fn_str();
m_dataObject->SetData( wxDataFormat(wxDF_FILENAME), strlen( buf ), (const char*)buf );
}
}
return true;
}
bool wxDropTarget::GetData()
{
if (!m_dataObject)
return FALSE;
if ( !CurrentDragHasSupportedFormat() )
return FALSE ;
bool transferred = false ;
if ( gTrackingGlobals.m_currentSource != NULL )
{
wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject() ;
if ( data )
{
size_t formatcount = data->GetFormatCount() ;
wxDataFormat *array = new wxDataFormat[ formatcount ];
data->GetAllFormats( array );
for (size_t i = 0; !transferred && i < formatcount ; i++)
{
wxDataFormat format = array[i] ;
if ( m_dataObject->IsSupported( format ) )
{
int size = data->GetDataSize( format );
transferred = true ;
if (size == 0)
{
m_dataObject->SetData(format , 0 , 0 ) ;
}
else
{
char *d = new char[size];
data->GetDataHere( format , (void*) d );
m_dataObject->SetData( format , size , d ) ;
delete[] d ;
}
}
}
delete[] array ;
}
}
if ( !transferred )
{
UInt16 items ;
OSErr result;
bool firstFileAdded = false ;
CountDragItems((DragReference)m_currentDrag, &items);
for (UInt16 index = 1; index <= items; ++index)
{
ItemReference theItem;
FlavorType theType ;
UInt16 flavors = 0 ;
GetDragItemReferenceNumber((DragReference)m_currentDrag, index, &theItem);
CountDragItemFlavors( (DragReference)m_currentDrag, theItem , &flavors ) ;
bool hasPreferredFormat = false ;
wxDataFormat preferredFormat = m_dataObject->GetPreferredFormat( wxDataObject::Set ) ;
for ( UInt16 flavor = 1 ; flavor <= flavors ; ++flavor )
{
result = GetFlavorType((DragReference)m_currentDrag, theItem, flavor , &theType);
wxDataFormat format(theType) ;
if ( preferredFormat == format )
{
hasPreferredFormat = true ;
break ;
}
}
for ( UInt16 flavor = 1 ; flavor <= flavors ; ++flavor )
{
result = GetFlavorType((DragReference)m_currentDrag, theItem, flavor , &theType);
wxDataFormat format(theType) ;
if ( (hasPreferredFormat && format==preferredFormat) || (!hasPreferredFormat && m_dataObject->IsSupportedFormat( format )))
{
FlavorFlags theFlags;
result = GetFlavorFlags((DragReference)m_currentDrag, theItem, theType, &theFlags);
if (result == noErr)
{
Size dataSize ;
Ptr theData ;
GetFlavorDataSize((DragReference)m_currentDrag, theItem, theType, &dataSize);
if ( theType == kScrapFlavorTypeText )
{
// this increment is only valid for allocating, on the next GetFlavorData
// call it is reset again to the original value
dataSize++ ;
}
else if ( theType == kScrapFlavorTypeUnicode )
{
// this increment is only valid for allocating, on the next GetFlavorData
// call it is reset again to the original value
dataSize++ ;
dataSize++ ;
}
theData = new char[dataSize];
GetFlavorData((DragReference)m_currentDrag, theItem, theType, (void*) theData, &dataSize, 0L);
if( theType == kScrapFlavorTypeText )
{
theData[dataSize]=0 ;
m_dataObject->SetData( wxDataFormat(wxDF_TEXT), dataSize , theData );
}
#if wxUSE_UNICODE
else if ( theType == kScrapFlavorTypeUnicode )
{
theData[dataSize]=0 ;
theData[dataSize+1]=0 ;
m_dataObject->SetData( wxDataFormat(wxDF_UNICODETEXT), dataSize , theData );
}
#endif
else if ( theType == kDragFlavorTypeHFS )
{
HFSFlavor* theFile = (HFSFlavor*) theData ;
wxString name = wxMacFSSpec2MacFilename( &theFile->fileSpec ) ;
if ( !firstFileAdded )
{
// reset file list
((wxFileDataObject*)m_dataObject)->SetData( 0 , "" ) ;
firstFileAdded = true ;
}
((wxFileDataObject*)m_dataObject)->AddFile( name ) ;
}
else
{
m_dataObject->SetData( format, dataSize, theData );
}
delete[] theData;
}
break ;
}
}
}
}
return TRUE ;
}