[wxWidgets.git] / src / mac / carbon / dnd.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        dnd.cpp
// Purpose:     wxDropTarget, wxDropSource, wxDataObject implementation
// Author:      AUTHOR
// Modified by:
// Created:     ??/??/98
// RCS-ID:      $Id$
// Copyright:   (c) 1998 AUTHOR
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "dnd.h"
#endif

#include "wx/defs.h"

#if wxUSE_DRAG_AND_DROP

#include "wx/dnd.h"
#include "wx/window.h"
#include "wx/toplevel.h"
#include "wx/app.h"
#include "wx/gdicmn.h"
#include "wx/mac/private.h"

// ----------------------------------------------------------------------------
// global
// ----------------------------------------------------------------------------

void wxMacEnsureTrackingHandlersInstalled() ;

typedef struct 
{
    wxWindow* m_currentTargetWindow ;
    wxDropTarget* m_currentTarget ;
    wxDropSource* m_currentSource ;
} MacTrackingGlobals ;

MacTrackingGlobals gTrackingGlobals ; 

//----------------------------------------------------------------------------
// wxDropTarget
//----------------------------------------------------------------------------

wxDropTarget::wxDropTarget( wxDataObject *data )
            : wxDropTargetBase( data )
{
    wxMacEnsureTrackingHandlersInstalled() ;
}

wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x),
                                       wxCoord WXUNUSED(y),
                                       wxDragResult def )
{

    return CurrentDragHasSupportedFormat() ? def : wxDragNone;
}

bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
{
    if (!m_dataObject)
        return FALSE;

    return CurrentDragHasSupportedFormat() ;
}

wxDragResult wxDropTarget::OnData( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
                                   wxDragResult def )
{
    if (!m_dataObject)
        return wxDragNone;

    if (!CurrentDragHasSupportedFormat())
        return wxDragNone;

    return GetData() ? def : wxDragNone;
}

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 ;
      OSErr result;
      CountDragItems((DragReference)m_currentDrag, &items);
      for (UInt16 index = 1; index <= items && supported == false ; ++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);
            if ( m_dataObject->IsSupportedFormat( wxDataFormat( theType ) ) )
            {
              supported = true ;
              break ;
            }
          }
      }
    }
    return supported ;   
}

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 ;       
                    if ( wxApp::s_macDefaultEncodingIsPC )
                    {
                      wxMacConvertToPC((char*)theData,(char*)theData,dataSize) ;
                    }
                    m_dataObject->SetData( format, dataSize, theData );
                  }
                  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 ;   
}

//-------------------------------------------------------------------------
// wxDropSource
//-------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// drag request

wxDropSource::wxDropSource(wxWindow *win,
                           const wxIcon &iconCopy,
                           const wxIcon &iconMove,
                           const wxIcon &iconNone)
{
    wxMacEnsureTrackingHandlersInstalled() ;
    m_window = win;
}

wxDropSource::wxDropSource(wxDataObject& data,
                           wxWindow *win,
                           const wxIcon &iconCopy,
                           const wxIcon &iconMove,
                           const wxIcon &iconNone)
{
    wxMacEnsureTrackingHandlersInstalled() ;
    SetData( data );
    m_window = win;
}

wxDropSource::~wxDropSource()
{
}


wxDragResult wxDropSource::DoDragDrop(int WXUNUSED(flags))
{
    wxASSERT_MSG( m_data, wxT("Drop source: no data") );

    if (!m_data)
        return (wxDragResult) wxDragNone;

    if (m_data->GetFormatCount() == 0)
        return (wxDragResult) wxDragNone;

    OSErr result;
    DragReference theDrag;
    RgnHandle dragRegion;
    if ((result = NewDrag(&theDrag)))
    {
        return wxDragNone ;
    }
    // add data to drag
    size_t formatCount = m_data->GetFormatCount() ;
    wxDataFormat *formats = new wxDataFormat[formatCount] ;
    m_data->GetAllFormats( formats ) ;
    ItemReference theItem = 1 ;
    for ( size_t i = 0 ; i < formatCount ; ++i )
    {
        size_t dataSize = m_data->GetDataSize( formats[i] ) ;
        Ptr dataPtr = new char[dataSize] ;
        m_data->GetDataHere( formats[i] , dataPtr ) ;
        OSType type = formats[i].GetFormatId() ;
        if ( type == 'TEXT' )
        {
          dataSize-- ;
          if ( wxApp::s_macDefaultEncodingIsPC )
          {
            wxMacConvertFromPC((char*)dataPtr,(char*)dataPtr,dataSize) ;
          }
          AddDragItemFlavor(theDrag, theItem, type , dataPtr, dataSize, 0);
        }
        else if (type == kDragFlavorTypeHFS )
        {
          HFSFlavor  theFlavor ;
        	OSErr err = noErr;
         	CInfoPBRec cat;
 
          wxMacFilename2FSSpec( dataPtr , &theFlavor.fileSpec ) ;

        	cat.hFileInfo.ioNamePtr = theFlavor.fileSpec.name;
        	cat.hFileInfo.ioVRefNum = theFlavor.fileSpec.vRefNum;
        	cat.hFileInfo.ioDirID = theFlavor.fileSpec.parID;
        	cat.hFileInfo.ioFDirIndex = 0;
        	err = PBGetCatInfoSync(&cat);
        	if (err == noErr )
        	{
          	theFlavor.fdFlags = cat.hFileInfo.ioFlFndrInfo.fdFlags;
          	if (theFlavor.fileSpec.parID == fsRtParID) {
          		theFlavor.fileCreator = 'MACS';
          		theFlavor.fileType = 'disk';
          	} else if ((cat.hFileInfo.ioFlAttrib & ioDirMask) != 0) {
          		theFlavor.fileCreator = 'MACS';
          		theFlavor.fileType = 'fold';
          	} else {
          		theFlavor.fileCreator = cat.hFileInfo.ioFlFndrInfo.fdCreator;
          		theFlavor.fileType = cat.hFileInfo.ioFlFndrInfo.fdType;
          	}
            AddDragItemFlavor(theDrag, theItem, type , &theFlavor, sizeof(theFlavor), 0);  
          }    
        }
        else
        {
          AddDragItemFlavor(theDrag, theItem, type , dataPtr, dataSize, 0);      
        }
        delete[] dataPtr ;
    }
    delete[] formats ;
    
    dragRegion = NewRgn();
    RgnHandle tempRgn = NewRgn() ;
    
    EventRecord* ev = NULL ;
#if !TARGET_CARBON // TODO
	ev = (EventRecord*) wxTheApp->MacGetCurrentEvent() ;
#else
	EventRecord rec ;
	ev = &rec ;
	wxMacConvertEventToRecord( (EventRef) wxTheApp->MacGetCurrentEvent() , &rec ) ;
#endif
    const short dragRegionOuterBoundary = 10 ;
    const short dragRegionInnerBoundary = 9 ;
    
    SetRectRgn( dragRegion , ev->where.h - dragRegionOuterBoundary , 
      ev->where.v  - dragRegionOuterBoundary ,
      ev->where.h + dragRegionOuterBoundary , 
      ev->where.v + dragRegionOuterBoundary ) ;

    SetRectRgn( tempRgn , ev->where.h - dragRegionInnerBoundary , 
      ev->where.v  - dragRegionInnerBoundary ,
      ev->where.h + dragRegionInnerBoundary , 
      ev->where.v + dragRegionInnerBoundary ) ;

    DiffRgn( dragRegion , tempRgn , dragRegion ) ;
    DisposeRgn( tempRgn ) ;    
      
    // TODO:work with promises in order to return data only when drag
    // was successfully completed

    gTrackingGlobals.m_currentSource = this ;
    result = TrackDrag(theDrag, ev , dragRegion);
    DisposeRgn(dragRegion);
    DisposeDrag(theDrag);
    gTrackingGlobals.m_currentSource = NULL ;

    return wxDragCopy ;
}

bool gTrackingGlobalsInstalled = false ;

// passing the globals via refcon is not needed by the CFM and later architectures anymore
// but I'll leave it in there, just in case...

pascal OSErr wxMacWindowDragTrackingHandler(DragTrackingMessage theMessage, WindowPtr theWindow,
  void *handlerRefCon, DragReference theDrag) ;
pascal OSErr wxMacWindowDragReceiveHandler(WindowPtr theWindow, void *handlerRefCon,
DragReference theDrag) ;

void wxMacEnsureTrackingHandlersInstalled()
{
    if( !gTrackingGlobalsInstalled )
    {
        OSErr result;

        result = InstallTrackingHandler(NewDragTrackingHandlerUPP(wxMacWindowDragTrackingHandler), 0L,&gTrackingGlobals);
        wxASSERT( result == noErr ) ;
        result = InstallReceiveHandler(NewDragReceiveHandlerUPP(wxMacWindowDragReceiveHandler), 0L, &gTrackingGlobals);
        wxASSERT( result == noErr ) ;

        gTrackingGlobalsInstalled = true ;
    }
}

pascal OSErr wxMacWindowDragTrackingHandler(DragTrackingMessage theMessage, WindowPtr theWindow,
  void *handlerRefCon, DragReference theDrag)
{ 
    MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*) handlerRefCon;
    Point mouse, localMouse;
    DragAttributes attributes;
    GetDragAttributes(theDrag, &attributes);
    wxTopLevelWindowMac* toplevel = wxFindWinFromMacWindow( theWindow ) ; 
    switch(theMessage) 
    {
        case kDragTrackingEnterHandler:
            break;
        case kDragTrackingLeaveHandler:
            break;
        case kDragTrackingEnterWindow:
           trackingGlobals->m_currentTargetWindow = NULL ;
            trackingGlobals->m_currentTarget = NULL ;
            break;
        case kDragTrackingInWindow:
            if (toplevel == NULL)
                break;

            GetDragMouse(theDrag, &mouse, 0L);
            localMouse = mouse;
            GlobalToLocal(&localMouse);
            
//            if (attributes & kDragHasLeftSenderWindow) 
            {
                wxPoint point(localMouse.h , localMouse.v) ;
                wxWindow *win = NULL ;
                toplevel->MacGetWindowFromPointSub( point , &win ) ;
                int localx , localy ;
                localx = localMouse.h ;
                localy = localMouse.v ;
                //TODO : should we use client coordinates
                if ( win )
                    win->MacRootWindowToWindow( &localx , &localy ) ;
                if ( win != trackingGlobals->m_currentTargetWindow )
                {
                    if ( trackingGlobals->m_currentTargetWindow )
                    {
                        // this window is left
                        if ( trackingGlobals->m_currentTarget )
                        {
                            HideDragHilite(theDrag);
                            trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
                            trackingGlobals->m_currentTarget->OnLeave() ;
                            trackingGlobals->m_currentTarget = NULL;
                            trackingGlobals->m_currentTargetWindow = NULL ;
                        }
                    }
                    if ( win )
                    {
                        // this window is entered
                        trackingGlobals->m_currentTargetWindow = win ;
                        trackingGlobals->m_currentTarget = win->GetDropTarget() ;
                        if ( trackingGlobals->m_currentTarget )
                        {
                          trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
                           if ( trackingGlobals->m_currentTarget->OnEnter(
                                localx , localy , wxDragCopy ) != wxDragNone )
                            {
                              int x , y ;
                              x = y = 0 ;
                              win->MacWindowToRootWindow( &x , &y ) ;
                              RgnHandle hiliteRgn = NewRgn() ;
                              SetRectRgn( hiliteRgn , x , y , x+win->GetSize().x ,y+win->GetSize().y) ;
                              ShowDragHilite(theDrag, hiliteRgn, true);
                              DisposeRgn( hiliteRgn ) ;
                            }
                        }
                    }
                }
                else
                {
                    if( trackingGlobals->m_currentTarget )
                    {
                        trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
                        trackingGlobals->m_currentTarget->OnDragOver(
                            localx , localy , wxDragCopy ) ;
                    }
                }
                
          }
            // MyTrackItemUnderMouse(localMouse, theWindow);
            break;
        case kDragTrackingLeaveWindow:
            if (trackingGlobals->m_currentTarget) 
            {
                trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
                trackingGlobals->m_currentTarget->OnLeave() ;
                HideDragHilite(theDrag);
                trackingGlobals->m_currentTarget = NULL ;
            }
            trackingGlobals->m_currentTargetWindow = NULL ;
            break;
    }
    return(noErr);
}

pascal OSErr wxMacWindowDragReceiveHandler(WindowPtr theWindow,
                                           void *handlerRefCon,
                                           DragReference theDrag)
{ 
    MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*) handlerRefCon;
    if ( trackingGlobals->m_currentTarget )
    {
        Point mouse,localMouse ;
        int localx,localy ;
        
        trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
        GetDragMouse(theDrag, &mouse, 0L);
        localMouse = mouse;
        GlobalToLocal(&localMouse);
        localx = localMouse.h ;
        localy = localMouse.v ;
        //TODO : should we use client coordinates
        if ( trackingGlobals->m_currentTargetWindow )
            trackingGlobals->m_currentTargetWindow->MacRootWindowToWindow( &localx , &localy ) ;
        if ( trackingGlobals->m_currentTarget->OnDrop( localx , localy ) )
        {
            trackingGlobals->m_currentTarget->OnData( localx , localy , wxDragCopy ) ;
        }
    }
    return(noErr);
}
#endif
Commit	Line	Data
e9576ca5 SC	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: dnd.cpp
	3	// Purpose: wxDropTarget, wxDropSource, wxDataObject implementation
	4	// Author: AUTHOR
	5	// Modified by:
	6	// Created: ??/??/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1998 AUTHOR
	9	// Licence: wxWindows licence
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "dnd.h"
	14	#endif
	15
ff143598 GD	16	#include "wx/defs.h"
	17
	18	#if wxUSE_DRAG_AND_DROP
	19
e9576ca5 SC	20	#include "wx/dnd.h"
e9576ca5 SC	21	#include "wx/window.h"
ff143598	22	#include "wx/toplevel.h"
e9576ca5 SC	23	#include "wx/app.h"
e9576ca5 SC	24	#include "wx/gdicmn.h"
76a5e5d2	25	#include "wx/mac/private.h"
e9576ca5 SC	26
	27	// ----------------------------------------------------------------------------
	28	// global
	29	// ----------------------------------------------------------------------------
	30
a07c1212	31	void wxMacEnsureTrackingHandlersInstalled() ;
e9576ca5	32
a07c1212	33	typedef struct
e9576ca5	34	{
a07c1212 SC	35	wxWindow* m_currentTargetWindow ;
	36	wxDropTarget* m_currentTarget ;
	37	wxDropSource* m_currentSource ;
	38	} MacTrackingGlobals ;
e9576ca5	39
a07c1212	40	MacTrackingGlobals gTrackingGlobals ;
e9576ca5	41
a07c1212 SC	42	//----------------------------------------------------------------------------
	43	// wxDropTarget
	44	//----------------------------------------------------------------------------
e9576ca5	45
a07c1212 SC	46	wxDropTarget::wxDropTarget( wxDataObject *data )
a07c1212 SC	47	: wxDropTargetBase( data )
e9576ca5	48	{
a07c1212	49	wxMacEnsureTrackingHandlersInstalled() ;
e9576ca5 SC	50	}
e9576ca5 SC	51
a07c1212 SC	52	wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x),
	53	wxCoord WXUNUSED(y),
	54	wxDragResult def )
e9576ca5	55	{
e9576ca5	56
a07c1212 SC	57	return CurrentDragHasSupportedFormat() ? def : wxDragNone;
a07c1212 SC	58	}
e9576ca5	59
a07c1212	60	bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
e9576ca5	61	{
a07c1212 SC	62	if (!m_dataObject)
	63	return FALSE;
	64
	65	return CurrentDragHasSupportedFormat() ;
e9576ca5 SC	66	}
e9576ca5 SC	67
a07c1212 SC	68	wxDragResult wxDropTarget::OnData( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
a07c1212 SC	69	wxDragResult def )
e9576ca5	70	{
a07c1212 SC	71	if (!m_dataObject)
	72	return wxDragNone;
	73
	74	if (!CurrentDragHasSupportedFormat())
	75	return wxDragNone;
	76
	77	return GetData() ? def : wxDragNone;
e9576ca5 SC	78	}
e9576ca5 SC	79
a07c1212	80	bool wxDropTarget::CurrentDragHasSupportedFormat()
e9576ca5	81	{
a07c1212 SC	82	bool supported = false ;
	83	if ( gTrackingGlobals.m_currentSource != NULL )
	84	{
	85	wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject() ;
	86
	87	if ( data )
	88	{
0cd51b2d	89	size_t formatcount = data->GetFormatCount() ;
a07c1212 SC	90	wxDataFormat *array = new wxDataFormat[ formatcount ];
	91	data->GetAllFormats( array );
	92	for (size_t i = 0; !supported && i < formatcount ; i++)
	93	{
	94	wxDataFormat format = array[i] ;
	95	if ( m_dataObject->IsSupported( format ) )
	96	{
	97	supported = true ;
	98	break ;
	99	}
	100	}
	101	delete[] array ;
	102	}
	103	}
	104	if ( !supported )
	105	{
	106	UInt16 items ;
	107	OSErr result;
76a5e5d2	108	CountDragItems((DragReference)m_currentDrag, &items);
a07c1212 SC	109	for (UInt16 index = 1; index <= items && supported == false ; ++index)
	110	{
	111	ItemReference theItem;
	112	FlavorType theType ;
	113	UInt16 flavors = 0 ;
76a5e5d2 SC	114	GetDragItemReferenceNumber((DragReference)m_currentDrag, index, &theItem);
76a5e5d2 SC	115	CountDragItemFlavors( (DragReference)m_currentDrag, theItem , &flavors ) ;
a07c1212 SC	116	for ( UInt16 flavor = 1 ; flavor <= flavors ; ++flavor )
a07c1212 SC	117	{
76a5e5d2	118	result = GetFlavorType((DragReference)m_currentDrag, theItem, flavor , &theType);
a07c1212 SC	119	if ( m_dataObject->IsSupportedFormat( wxDataFormat( theType ) ) )
	120	{
	121	supported = true ;
	122	break ;
	123	}
	124	}
	125	}
	126	}
	127	return supported ;
e9576ca5 SC	128	}
e9576ca5 SC	129
a07c1212	130	bool wxDropTarget::GetData()
e9576ca5	131	{
a07c1212 SC	132	if (!m_dataObject)
	133	return FALSE;
	134
	135	if ( !CurrentDragHasSupportedFormat() )
	136	return FALSE ;
	137
	138	bool transferred = false ;
	139	if ( gTrackingGlobals.m_currentSource != NULL )
	140	{
	141	wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject() ;
	142
	143	if ( data )
	144	{
0cd51b2d	145	size_t formatcount = data->GetFormatCount() ;
a07c1212 SC	146	wxDataFormat *array = new wxDataFormat[ formatcount ];
	147	data->GetAllFormats( array );
	148	for (size_t i = 0; !transferred && i < formatcount ; i++)
	149	{
	150	wxDataFormat format = array[i] ;
	151	if ( m_dataObject->IsSupported( format ) )
	152	{
	153	int size = data->GetDataSize( format );
	154	transferred = true ;
	155
	156	if (size == 0)
	157	{
	158	m_dataObject->SetData(format , 0 , 0 ) ;
	159	}
	160	else
	161	{
	162	char *d = new char[size];
	163	data->GetDataHere( format , (void*) d );
	164	m_dataObject->SetData( format , size , d ) ;
	165	delete[] d ;
	166	}
	167	}
	168	}
	169	delete[] array ;
	170	}
	171	}
	172	if ( !transferred )
	173	{
	174	UInt16 items ;
	175	OSErr result;
e56aba8d	176	bool firstFileAdded = false ;
76a5e5d2	177	CountDragItems((DragReference)m_currentDrag, &items);
a07c1212 SC	178	for (UInt16 index = 1; index <= items; ++index)
	179	{
	180	ItemReference theItem;
	181	FlavorType theType ;
	182	UInt16 flavors = 0 ;
76a5e5d2 SC	183	GetDragItemReferenceNumber((DragReference)m_currentDrag, index, &theItem);
76a5e5d2 SC	184	CountDragItemFlavors( (DragReference)m_currentDrag, theItem , &flavors ) ;
a07c1212 SC	185	for ( UInt16 flavor = 1 ; flavor <= flavors ; ++flavor )
a07c1212 SC	186	{
76a5e5d2	187	result = GetFlavorType((DragReference)m_currentDrag, theItem, flavor , &theType);
a07c1212 SC	188	wxDataFormat format(theType) ;
	189	if ( m_dataObject->IsSupportedFormat( format ) )
	190	{
	191	FlavorFlags theFlags;
76a5e5d2	192	result = GetFlavorFlags((DragReference)m_currentDrag, theItem, theType, &theFlags);
a07c1212 SC	193	if (result == noErr)
	194	{
	195	Size dataSize ;
	196	Ptr theData ;
76a5e5d2	197	GetFlavorDataSize((DragReference)m_currentDrag, theItem, theType, &dataSize);
45a0fd37 SC	198	if ( theType == 'TEXT' )
	199	{
	200	// this increment is only valid for allocating, on the next GetFlavorData
	201	// call it is reset again to the original value
	202	dataSize++ ;
	203	}
a07c1212	204	theData = new char[dataSize];
76a5e5d2	205	GetFlavorData((DragReference)m_currentDrag, theItem, theType, (void*) theData, &dataSize, 0L);
a07c1212 SC	206	if( theType == 'TEXT' )
	207	{
	208	theData[dataSize]=0 ;
	209	if ( wxApp::s_macDefaultEncodingIsPC )
	210	{
45a0fd37	211	wxMacConvertToPC((char)theData,(char)theData,dataSize) ;
a07c1212 SC	212	}
	213	m_dataObject->SetData( format, dataSize, theData );
	214	}
	215	else if ( theType == kDragFlavorTypeHFS )
	216	{
	217	HFSFlavor* theFile = (HFSFlavor*) theData ;
	218	wxString name = wxMacFSSpec2MacFilename( &theFile->fileSpec ) ;
e56aba8d SC	219	if ( firstFileAdded )
	220	((wxFileDataObject*)m_dataObject)->AddFile( name ) ;
	221	else
	222	{
	223	((wxFileDataObject*)m_dataObject)->SetData( 0 , name.c_str() ) ;
	224	firstFileAdded = true ;
	225	}
a07c1212 SC	226	}
	227	else
	228	{
	229	m_dataObject->SetData( format, dataSize, theData );
	230	}
	231	delete[] theData;
	232	}
	233	break ;
	234	}
	235	}
	236	}
	237	}
	238	return TRUE ;
e9576ca5 SC	239	}
	240
	241	//-------------------------------------------------------------------------
	242	// wxDropSource
	243	//-------------------------------------------------------------------------
	244
	245	//-----------------------------------------------------------------------------
	246	// drag request
	247
a07c1212 SC	248	wxDropSource::wxDropSource(wxWindow *win,
	249	const wxIcon &iconCopy,
	250	const wxIcon &iconMove,
	251	const wxIcon &iconNone)
e9576ca5	252	{
a07c1212 SC	253	wxMacEnsureTrackingHandlersInstalled() ;
	254	m_window = win;
	255	}
e9576ca5	256
a07c1212 SC	257	wxDropSource::wxDropSource(wxDataObject& data,
	258	wxWindow *win,
	259	const wxIcon &iconCopy,
	260	const wxIcon &iconMove,
	261	const wxIcon &iconNone)
	262	{
	263	wxMacEnsureTrackingHandlersInstalled() ;
	264	SetData( data );
	265	m_window = win;
	266	}
e9576ca5	267
a07c1212	268	wxDropSource::~wxDropSource()
e9576ca5	269	{
a07c1212	270	}
e9576ca5	271
e9576ca5	272
2245b2b2	273	wxDragResult wxDropSource::DoDragDrop(int WXUNUSED(flags))
e9576ca5	274	{
a07c1212	275	wxASSERT_MSG( m_data, wxT("Drop source: no data") );
e9576ca5	276
a07c1212 SC	277	if (!m_data)
	278	return (wxDragResult) wxDragNone;
	279
	280	if (m_data->GetFormatCount() == 0)
	281	return (wxDragResult) wxDragNone;
	282
	283	OSErr result;
	284	DragReference theDrag;
	285	RgnHandle dragRegion;
0cd51b2d	286	if ((result = NewDrag(&theDrag)))
a07c1212 SC	287	{
	288	return wxDragNone ;
	289	}
	290	// add data to drag
	291	size_t formatCount = m_data->GetFormatCount() ;
	292	wxDataFormat *formats = new wxDataFormat[formatCount] ;
	293	m_data->GetAllFormats( formats ) ;
	294	ItemReference theItem = 1 ;
0cd51b2d	295	for ( size_t i = 0 ; i < formatCount ; ++i )
a07c1212 SC	296	{
	297	size_t dataSize = m_data->GetDataSize( formats[i] ) ;
	298	Ptr dataPtr = new char[dataSize] ;
	299	m_data->GetDataHere( formats[i] , dataPtr ) ;
	300	OSType type = formats[i].GetFormatId() ;
	301	if ( type == 'TEXT' )
	302	{
	303	dataSize-- ;
	304	if ( wxApp::s_macDefaultEncodingIsPC )
	305	{
45a0fd37	306	wxMacConvertFromPC((char)dataPtr,(char)dataPtr,dataSize) ;
a07c1212 SC	307	}
	308	AddDragItemFlavor(theDrag, theItem, type , dataPtr, dataSize, 0);
	309	}
	310	else if (type == kDragFlavorTypeHFS )
	311	{
	312	HFSFlavor theFlavor ;
	313	OSErr err = noErr;
	314	CInfoPBRec cat;
	315
	316	wxMacFilename2FSSpec( dataPtr , &theFlavor.fileSpec ) ;
	317
	318	cat.hFileInfo.ioNamePtr = theFlavor.fileSpec.name;
	319	cat.hFileInfo.ioVRefNum = theFlavor.fileSpec.vRefNum;
	320	cat.hFileInfo.ioDirID = theFlavor.fileSpec.parID;
	321	cat.hFileInfo.ioFDirIndex = 0;
	322	err = PBGetCatInfoSync(&cat);
	323	if (err == noErr )
	324	{
	325	theFlavor.fdFlags = cat.hFileInfo.ioFlFndrInfo.fdFlags;
	326	if (theFlavor.fileSpec.parID == fsRtParID) {
	327	theFlavor.fileCreator = 'MACS';
	328	theFlavor.fileType = 'disk';
	329	} else if ((cat.hFileInfo.ioFlAttrib & ioDirMask) != 0) {
	330	theFlavor.fileCreator = 'MACS';
	331	theFlavor.fileType = 'fold';
	332	} else {
	333	theFlavor.fileCreator = cat.hFileInfo.ioFlFndrInfo.fdCreator;
	334	theFlavor.fileType = cat.hFileInfo.ioFlFndrInfo.fdType;
	335	}
	336	AddDragItemFlavor(theDrag, theItem, type , &theFlavor, sizeof(theFlavor), 0);
	337	}
	338	}
	339	else
	340	{
	341	AddDragItemFlavor(theDrag, theItem, type , dataPtr, dataSize, 0);
	342	}
	343	delete[] dataPtr ;
	344	}
	345	delete[] formats ;
	346
	347	dragRegion = NewRgn();
	348	RgnHandle tempRgn = NewRgn() ;
	349
45a0fd37 SC	350	EventRecord* ev = NULL ;
	351	#if !TARGET_CARBON // TODO
	352	ev = (EventRecord*) wxTheApp->MacGetCurrentEvent() ;
	353	#else
	354	EventRecord rec ;
	355	ev = &rec ;
	356	wxMacConvertEventToRecord( (EventRef) wxTheApp->MacGetCurrentEvent() , &rec ) ;
	357	#endif
a07c1212 SC	358	const short dragRegionOuterBoundary = 10 ;
	359	const short dragRegionInnerBoundary = 9 ;
	360
	361	SetRectRgn( dragRegion , ev->where.h - dragRegionOuterBoundary ,
	362	ev->where.v - dragRegionOuterBoundary ,
	363	ev->where.h + dragRegionOuterBoundary ,
	364	ev->where.v + dragRegionOuterBoundary ) ;
	365
	366	SetRectRgn( tempRgn , ev->where.h - dragRegionInnerBoundary ,
	367	ev->where.v - dragRegionInnerBoundary ,
	368	ev->where.h + dragRegionInnerBoundary ,
	369	ev->where.v + dragRegionInnerBoundary ) ;
	370
	371	DiffRgn( dragRegion , tempRgn , dragRegion ) ;
	372	DisposeRgn( tempRgn ) ;
	373
	374	// TODO:work with promises in order to return data only when drag
	375	// was successfully completed
	376
	377	gTrackingGlobals.m_currentSource = this ;
	378	result = TrackDrag(theDrag, ev , dragRegion);
	379	DisposeRgn(dragRegion);
	380	DisposeDrag(theDrag);
	381	gTrackingGlobals.m_currentSource = NULL ;
	382
	383	return wxDragCopy ;
	384	}
	385
	386	bool gTrackingGlobalsInstalled = false ;
	387
	388	// passing the globals via refcon is not needed by the CFM and later architectures anymore
	389	// but I'll leave it in there, just in case...
	390
	391	pascal OSErr wxMacWindowDragTrackingHandler(DragTrackingMessage theMessage, WindowPtr theWindow,
	392	void *handlerRefCon, DragReference theDrag) ;
	393	pascal OSErr wxMacWindowDragReceiveHandler(WindowPtr theWindow, void *handlerRefCon,
	394	DragReference theDrag) ;
	395
	396	void wxMacEnsureTrackingHandlersInstalled()
e9576ca5	397	{
a07c1212 SC	398	if( !gTrackingGlobalsInstalled )
	399	{
	400	OSErr result;
	401
	402	result = InstallTrackingHandler(NewDragTrackingHandlerUPP(wxMacWindowDragTrackingHandler), 0L,&gTrackingGlobals);
	403	wxASSERT( result == noErr ) ;
	404	result = InstallReceiveHandler(NewDragReceiveHandlerUPP(wxMacWindowDragReceiveHandler), 0L, &gTrackingGlobals);
	405	wxASSERT( result == noErr ) ;
e9576ca5	406
a07c1212 SC	407	gTrackingGlobalsInstalled = true ;
	408	}
	409	}
	410
	411	pascal OSErr wxMacWindowDragTrackingHandler(DragTrackingMessage theMessage, WindowPtr theWindow,
	412	void *handlerRefCon, DragReference theDrag)
	413	{
	414	MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*) handlerRefCon;
	415	Point mouse, localMouse;
	416	DragAttributes attributes;
a07c1212 SC	417	GetDragAttributes(theDrag, &attributes);
	418	wxTopLevelWindowMac* toplevel = wxFindWinFromMacWindow( theWindow ) ;
	419	switch(theMessage)
	420	{
	421	case kDragTrackingEnterHandler:
	422	break;
	423	case kDragTrackingLeaveHandler:
	424	break;
	425	case kDragTrackingEnterWindow:
	426	trackingGlobals->m_currentTargetWindow = NULL ;
	427	trackingGlobals->m_currentTarget = NULL ;
	428	break;
	429	case kDragTrackingInWindow:
	430	if (toplevel == NULL)
	431	break;
	432
	433	GetDragMouse(theDrag, &mouse, 0L);
	434	localMouse = mouse;
	435	GlobalToLocal(&localMouse);
	436
	437	// if (attributes & kDragHasLeftSenderWindow)
	438	{
	439	wxPoint point(localMouse.h , localMouse.v) ;
	440	wxWindow *win = NULL ;
	441	toplevel->MacGetWindowFromPointSub( point , &win ) ;
	442	int localx , localy ;
	443	localx = localMouse.h ;
	444	localy = localMouse.v ;
	445	//TODO : should we use client coordinates
	446	if ( win )
	447	win->MacRootWindowToWindow( &localx , &localy ) ;
	448	if ( win != trackingGlobals->m_currentTargetWindow )
	449	{
	450	if ( trackingGlobals->m_currentTargetWindow )
	451	{
	452	// this window is left
	453	if ( trackingGlobals->m_currentTarget )
	454	{
	455	HideDragHilite(theDrag);
	456	trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
	457	trackingGlobals->m_currentTarget->OnLeave() ;
	458	trackingGlobals->m_currentTarget = NULL;
	459	trackingGlobals->m_currentTargetWindow = NULL ;
	460	}
	461	}
	462	if ( win )
	463	{
	464	// this window is entered
	465	trackingGlobals->m_currentTargetWindow = win ;
	466	trackingGlobals->m_currentTarget = win->GetDropTarget() ;
	467	if ( trackingGlobals->m_currentTarget )
	468	{
	469	trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
	470	if ( trackingGlobals->m_currentTarget->OnEnter(
	471	localx , localy , wxDragCopy ) != wxDragNone )
	472	{
	473	int x , y ;
	474	x = y = 0 ;
	475	win->MacWindowToRootWindow( &x , &y ) ;
	476	RgnHandle hiliteRgn = NewRgn() ;
	477	SetRectRgn( hiliteRgn , x , y , x+win->GetSize().x ,y+win->GetSize().y) ;
	478	ShowDragHilite(theDrag, hiliteRgn, true);
	479	DisposeRgn( hiliteRgn ) ;
	480	}
481	}
482	}
483	}
484	else
485	{
486	if( trackingGlobals->m_currentTarget )
487	{
488	trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
489	trackingGlobals->m_currentTarget->OnDragOver(
490	localx , localy , wxDragCopy ) ;
491	}
492	}
493
494	}
495	// MyTrackItemUnderMouse(localMouse, theWindow);
496	break;
497	case kDragTrackingLeaveWindow:
498	if (trackingGlobals->m_currentTarget)
499	{
500	trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
501	trackingGlobals->m_currentTarget->OnLeave() ;
502	HideDragHilite(theDrag);
503	trackingGlobals->m_currentTarget = NULL ;
504	}
505	trackingGlobals->m_currentTargetWindow = NULL ;
506	break;
507	}
508	return(noErr);
509	}
510
f2af4afb GD	511	pascal OSErr wxMacWindowDragReceiveHandler(WindowPtr theWindow,
	512	void *handlerRefCon,
	513	DragReference theDrag)
a07c1212 SC	514	{
	515	MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*) handlerRefCon;
	516	if ( trackingGlobals->m_currentTarget )
	517	{
	518	Point mouse,localMouse ;
	519	int localx,localy ;
	520
	521	trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ) ;
	522	GetDragMouse(theDrag, &mouse, 0L);
	523	localMouse = mouse;
	524	GlobalToLocal(&localMouse);
	525	localx = localMouse.h ;
	526	localy = localMouse.v ;
	527	//TODO : should we use client coordinates
	528	if ( trackingGlobals->m_currentTargetWindow )
	529	trackingGlobals->m_currentTargetWindow->MacRootWindowToWindow( &localx , &localy ) ;
	530	if ( trackingGlobals->m_currentTarget->OnDrop( localx , localy ) )
	531	{
	532	trackingGlobals->m_currentTarget->OnData( localx , localy , wxDragCopy ) ;
	533	}
	534	}
	535	return(noErr);
	536	}
03e11df5	537	#endif