+ wxASSERT_MSG( m_data, wxT("Drop source: no data") );
+
+ if ((m_data == NULL) || (m_data->GetFormatCount() == 0))
+ return (wxDragResult)wxDragNone;
+
+ DragReference theDrag;
+ RgnHandle dragRegion;
+
+ if (NewDrag( &theDrag ) != noErr)
+ return wxDragNone;
+
+ // add data to drag
+ size_t formatCount = m_data->GetFormatCount();
+ wxDataFormat *formats = new wxDataFormat[formatCount];
+ m_data->GetAllFormats( formats );
+ ItemReference theItem = (ItemReference) 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' || type == 'utxt' )
+ {
+ if ( dataSize > 0 )
+ dataSize--;
+ dataPtr[ dataSize ] = 0;
+ if ( type == 'utxt' )
+ {
+ if ( dataSize > 0 )
+ dataSize--;
+ dataPtr[ dataSize ] = 0;
+ }
+
+ AddDragItemFlavor( theDrag, theItem, type, dataPtr, dataSize, 0 );
+ }
+ else if (type == kDragFlavorTypeHFS )
+ {
+ HFSFlavor theFlavor;
+ OSErr err = noErr;
+#ifndef __LP64__
+ CInfoPBRec cat;
+
+ wxMacFilename2FSSpec( wxString( dataPtr, *wxConvCurrent ), &theFlavor.fileSpec );
+
+ memset( &cat, 0, sizeof(cat) );
+ 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 );
+#endif
+ if (err == noErr)
+ {
+#ifndef __LP64__
+ 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;
+ }
+#endif
+ 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;
+ TrackDrag( theDrag, ev, dragRegion );
+ DisposeRgn( dragRegion );
+ DisposeDrag( theDrag );
+ gTrackingGlobals.m_currentSource = NULL;
+
+ bool optionDown = GetCurrentKeyModifiers() & optionKey;
+ wxDragResult dndresult = wxDragCopy;
+ if ( flags != wxDrag_CopyOnly )
+ // on mac the option key is always the indication for copy
+ dndresult = optionDown ? wxDragCopy : wxDragMove;
+
+ return dndresult;
+}
+
+bool wxDropSource::MacInstallDefaultCursor(wxDragResult effect)
+{
+ const wxCursor& cursor = GetCursor(effect);
+ bool result = cursor.Ok();
+
+ if ( result )
+ cursor.MacInstall();
+
+ return result;
+}
+
+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 )
+ {
+ OSStatus err;
+
+ err = InstallTrackingHandler( NewDragTrackingHandlerUPP(wxMacWindowDragTrackingHandler), 0L, &gTrackingGlobals );
+ verify_noerr( err );
+
+ err = InstallReceiveHandler( NewDragReceiveHandlerUPP(wxMacWindowDragReceiveHandler), 0L, &gTrackingGlobals );
+ verify_noerr( err );
+
+ 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 );
+
+ bool optionDown = GetCurrentKeyModifiers() & optionKey;
+ wxDragResult result = optionDown ? wxDragCopy : wxDragMove;
+
+ switch (theMessage)
+ {
+ case kDragTrackingEnterHandler:
+ case kDragTrackingLeaveHandler:
+ break;
+
+ case kDragTrackingEnterWindow:
+ if (trackingGlobals != NULL)
+ {
+ trackingGlobals->m_currentTargetWindow = NULL;
+ trackingGlobals->m_currentTarget = NULL;
+ }
+ break;
+
+ case kDragTrackingInWindow:
+ if (trackingGlobals == NULL)
+ break;
+ if (toplevel == NULL)
+ break;
+
+ GetDragMouse( theDrag, &mouse, 0L );
+ localMouse = mouse;
+ wxMacGlobalToLocal( theWindow, &localMouse );
+
+ {
+ wxWindow *win = NULL;
+ ControlPartCode controlPart;
+ ControlRef control = wxMacFindControlUnderMouse(
+ toplevel, localMouse, theWindow, &controlPart );
+ if ( control )
+ win = wxFindControlFromMacControl( control );
+ else
+ win = toplevel;
+
+ int localx, localy;
+ localx = localMouse.h;
+ localy = localMouse.v;
+
+ if ( win )
+ win->MacRootWindowToWindow( &localx, &localy );
+ if ( win != trackingGlobals->m_currentTargetWindow )
+ {
+ if ( trackingGlobals->m_currentTargetWindow )
+ {
+ // this window is left
+ if ( trackingGlobals->m_currentTarget )
+ {
+#ifndef __LP64__
+ HideDragHilite( theDrag );
+#endif
+ 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 );
+ result = trackingGlobals->m_currentTarget->OnEnter( localx, localy, result );
+ }
+
+ if ( result != wxDragNone )
+ {
+ int x, y;
+
+ x = y = 0;
+ win->MacWindowToRootWindow( &x, &y );
+ RgnHandle hiliteRgn = NewRgn();
+ Rect r = { y, x, y + win->GetSize().y, x + win->GetSize().x };
+ RectRgn( hiliteRgn, &r );
+#ifndef __LP64__
+ ShowDragHilite( theDrag, hiliteRgn, true );
+#endif
+ DisposeRgn( hiliteRgn );
+ }
+ }
+ }
+ }
+ else
+ {
+ if ( trackingGlobals->m_currentTarget )
+ {
+ trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
+ trackingGlobals->m_currentTarget->OnDragOver( localx, localy, result );
+ }
+ }
+
+ // set cursor for OnEnter and OnDragOver
+ if ( trackingGlobals->m_currentSource && !trackingGlobals->m_currentSource->GiveFeedback( result ) )
+ {
+ if ( !trackingGlobals->m_currentSource->MacInstallDefaultCursor( result ) )
+ {
+ int cursorID = wxCURSOR_NONE;
+
+ switch (result)
+ {
+ case wxDragCopy:
+ cursorID = wxCURSOR_COPY_ARROW;
+ break;
+
+ case wxDragMove:
+ cursorID = wxCURSOR_ARROW;
+ break;
+
+ case wxDragNone:
+ cursorID = wxCURSOR_NO_ENTRY;
+ break;
+
+ case wxDragError:
+ case wxDragLink:
+ case wxDragCancel:
+ default:
+ // put these here to make gcc happy
+ ;
+ }
+
+ if (cursorID != wxCURSOR_NONE)
+ {
+ wxCursor cursor( cursorID );
+ cursor.MacInstall();
+ }
+ }
+ }
+ }
+ break;
+
+ case kDragTrackingLeaveWindow:
+ if (trackingGlobals == NULL)
+ break;
+
+ if (trackingGlobals->m_currentTarget)
+ {
+ trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
+ trackingGlobals->m_currentTarget->OnLeave();
+#ifndef __LP64__
+ HideDragHilite( theDrag );
+#endif
+ trackingGlobals->m_currentTarget = NULL;
+ }
+ trackingGlobals->m_currentTargetWindow = NULL;
+ break;
+
+ default:
+ break;
+ }
+
+ return noErr;
+}
+
+pascal OSErr wxMacWindowDragReceiveHandler(
+ WindowPtr theWindow,
+ void *handlerRefCon,
+ DragReference theDrag)
projects / wxWidgets.git / blobdiff