/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _GLOBALS_HXX_
#define _GLOBALS_HXX_

#ifndef _OSL_MUTEX_H_
#include <osl/mutex.hxx>
#endif

#if defined _MSC_VER
#pragma warning(push,1)
#endif
#include <wtypes.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif
#include <sal/types.h>


#define DNDSOURCE_SERVICE_NAME  "com.sun.star.datatransfer.dnd.OleDragSource"
#define DNDSOURCE_IMPL_NAME  "com.sun.star.comp.datatransfer.dnd.OleDragSource_V1"
#define DNDSOURCE_REGKEY_NAME  "/com.sun.star.comp.datatransfer.dnd.OleDragSource_V1/UNO/SERVICES/com.sun.star.datatransfer.dnd.OleDragSource"

#define DNDTARGET_SERVICE_NAME  "com.sun.star.datatransfer.dnd.OleDropTarget"
#define DNDTARGET_IMPL_NAME  "com.sun.star.comp.datatransfer.dnd.OleDropTarget_V1"
#define DNDTARGET_REGKEY_NAME  "/com.sun.star.comp.datatransfer.dnd.OleDropTarget_V1/UNO/SERVICES/com.sun.star.datatransfer.dnd.OleDropTarget"

// This maps key states as occur as parameter, e.g. in IDropTarget::DragEnter,
// IDropSource::QueryContinueDrag, to actions as are declared in 
// com::sun::star::datatransfer::dnd::DNDConstants ( ACTION_MOVE etc).
// If the grfKeyState indicates the ALt or right mousebutton then the returned 
// values combines all possible actions. This is because those key and button are
// used when the user expect a menu to appear when he drops. The menu then
// contains entries, such as move, copy, link, cancel.
// An odd fact is that the argument grfKeyState in IDropTarget::Drop does not 
// contain mouse buttons (winnt 4 SP6). That indicates that the right mouse button 
// is not considered relevant in a drag operation. Contrarily the file explorer
// gives that button a special meaning: the user has to select the effect from 
// a context menu on drop.
sal_Int8 dndOleKeysToAction( DWORD grfKeyState, sal_Int8 sourceActions);

// The function maps a windows DROPEFFECTs to actions 
// ( com::sun::star::datatransfer::dnd::DNDConstants).
// The argument can be a combination of different DROPEFFECTS, 
// In that case the return value is also a combination of the 
// appropriate actions.
sal_Int8 dndOleDropEffectsToActions( DWORD dwEffect);

// The function maps actions ( com::sun::star::datatransfer::dnd::DNDConstants)
// to window DROPEFFECTs.
// The argument can be a combination of different actions
// In that case the return value is also a combination of the 
// appropriate DROPEFFECTS.
DWORD dndActionsToDropEffects( sal_Int8 actions);

// If the argument constitutes only one action then it is mapped to the 
// corresponding DROPEFFECT otherwise DROPEFFECT_MOVE is returned. This is
// why move is the default effect (no modifiers pressed, or right mouse button
// or Alt).
DWORD dndActionsToSingleDropEffect( sal_Int8 actions);



struct MutexDummy
{
	osl::Mutex m_mutex;
};


#endif