dtrans/source/win32/dnd/globals.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  21
  22 #include "globals.hxx"
  23
  24 //--> TRA
  25 #include <com/sun/star/datatransfer/XTransferable.hpp>
  26
  27 // used as shortcut when drag-source and drop-target are the same
  28 ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable > g_XTransferable;
  29
  30 //<-- TRA
  31
  32 using namespace com::sun::star::datatransfer::dnd::DNDConstants;
  33
  34 sal_Int8 dndOleKeysToAction( DWORD grfKeyState, sal_Int8 nSourceActions)
  35 {
  36     sal_Int8 ret= 0;
  37
  38     // no MK_ALT, MK_CONTROL, MK_SHIFT
  39     if( !(grfKeyState & MK_CONTROL) &&
  40         !(grfKeyState & MK_ALT)    &&
  41         !(grfKeyState & MK_RBUTTON) &&
  42         !(grfKeyState & MK_SHIFT))
  43     {
  44         if( nSourceActions & ACTION_MOVE )
  45         {
  46             ret= ACTION_DEFAULT | ACTION_MOVE;
  47         }
  48
  49         else if( nSourceActions & ACTION_COPY )
  50         {
  51             ret= ACTION_COPY;
  52         }
  53
  54         else if( nSourceActions & ACTION_LINK )
  55         {
  56             ret= ACTION_LINK;
  57         }
  58
  59         else
  60             ret = 0;
  61     }
  62     else if( grfKeyState & MK_SHIFT &&
  63             !(grfKeyState & MK_CONTROL))
  64     {
  65         ret= ACTION_MOVE;
  66     }
  67     else if ( grfKeyState & MK_CONTROL &&
  68               !(grfKeyState & MK_SHIFT) )
  69     {
  70         ret= ACTION_COPY;
  71     }
  72     else if ( grfKeyState & MK_CONTROL &&
  73               grfKeyState & MK_SHIFT)
  74     {
  75         ret= ACTION_LINK;
  76     }
  77     else if ( grfKeyState & MK_RBUTTON ||
  78               grfKeyState & MK_ALT)
  79     {
  80         ret= ACTION_COPY_OR_MOVE | ACTION_LINK;
  81     }
  82     return ret;
  83 }
  84
  85 sal_Int8 dndOleDropEffectsToActions( DWORD dwEffect)
  86 {
  87     sal_Int8 ret= ACTION_NONE;
  88     if( dwEffect & DROPEFFECT_COPY)
  89         ret |= ACTION_COPY;
  90     if( dwEffect & DROPEFFECT_MOVE)
  91         ret |= ACTION_MOVE;
  92     if( dwEffect & DROPEFFECT_LINK)
  93         ret |= ACTION_LINK;
  94
  95     return ret;
  96 }
  97
  98 DWORD dndActionsToDropEffects( sal_Int8 actions)
  99 {
 100     DWORD ret= DROPEFFECT_NONE;
 101     if( actions & ACTION_MOVE)
 102         ret |= DROPEFFECT_MOVE;
 103     if( actions & ACTION_COPY)
 104         ret |= DROPEFFECT_COPY;
 105     if( actions & ACTION_LINK)
 106         ret |= DROPEFFECT_LINK;
 107     if( actions & ACTION_DEFAULT)
 108         ret |= DROPEFFECT_COPY;
 109     return ret;
 110 }
 111
 112 DWORD dndActionsToSingleDropEffect( sal_Int8 actions)
 113 {
 114     DWORD effects= dndActionsToDropEffects( actions);
 115
 116     sal_Int8 countEffect= 0;
 117
 118     if( effects & DROPEFFECT_MOVE)
 119         countEffect++;
 120     if( effects & DROPEFFECT_COPY)
 121         countEffect++;
 122     if( effects & DROPEFFECT_LINK)
 123         countEffect++;
 124
 125     // DROPEFFECT_MOVE is the default effect
 126     DWORD retVal= countEffect > 1 ? DROPEFFECT_MOVE : effects;
 127     return retVal;
 128 }
 129
 130 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */