dtrans/source/win32/dnd/idroptarget.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 "idroptarget.hxx"
  21
  22 #ifdef __MINGW32__
  23 #if defined __uuidof
  24 #undef __uuidof
  25 #endif
  26 #define __uuidof(I) IID_##I
  27 #endif
  28
  29 IDropTargetImpl::IDropTargetImpl( DropTarget& pTarget): m_nRefCount( 0),
  30                                     m_rDropTarget( pTarget)
  31 {
  32 }
  33
  34 IDropTargetImpl::~IDropTargetImpl()
  35 {
  36 }
  37
  38
  39 //IDropTarget
  40 HRESULT STDMETHODCALLTYPE IDropTargetImpl::QueryInterface( REFIID riid, void  **ppvObject)
  41 {
  42     if( !ppvObject)
  43         return E_POINTER;
  44     *ppvObject= NULL;
  45
  46     if( riid == __uuidof( IUnknown))
  47         *ppvObject= static_cast<IUnknown*>( this);
  48     else if (  riid == __uuidof( IDropTarget))
  49         *ppvObject= static_cast<IDropTarget*>( this);
  50
  51     if(*ppvObject)
  52     {
  53         AddRef();
  54         return S_OK;
  55     }
  56     else
  57         return E_NOINTERFACE;
  58
  59 }
  60
  61 ULONG STDMETHODCALLTYPE IDropTargetImpl::AddRef( void)
  62 {
  63     return InterlockedIncrement( &m_nRefCount);
  64 }
  65
  66 ULONG STDMETHODCALLTYPE IDropTargetImpl::Release( void)
  67 {
  68     LONG count= InterlockedDecrement( &m_nRefCount);
  69     if( m_nRefCount == 0 )
  70         delete this;
  71     return count;
  72 }
  73
  74 STDMETHODIMP IDropTargetImpl::DragEnter( IDataObject __RPC_FAR *pDataObj,
  75                                     DWORD grfKeyState,
  76                                     POINTL pt,
  77                                     DWORD  *pdwEffect)
  78 {
  79     return m_rDropTarget.DragEnter( pDataObj, grfKeyState,
  80                                   pt, pdwEffect);
  81 }
  82
  83 STDMETHODIMP IDropTargetImpl::DragOver( DWORD grfKeyState,
  84                                    POINTL pt,
  85                                    DWORD  *pdwEffect)
  86 {
  87     return m_rDropTarget.DragOver( grfKeyState, pt, pdwEffect);
  88 }
  89
  90 STDMETHODIMP IDropTargetImpl::DragLeave( void)
  91 {
  92     return m_rDropTarget.DragLeave();
  93 }
  94
  95 STDMETHODIMP IDropTargetImpl::Drop( IDataObject  *pDataObj,
  96                    DWORD grfKeyState,
  97                    POINTL pt,
  98                    DWORD __RPC_FAR *pdwEffect)
  99 {
 100     return m_rDropTarget.Drop( pDataObj, grfKeyState,
 101                                    pt, pdwEffect);
 102 }
 103
 104 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */