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       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             : #ifndef INCLUDED_VCL_INC_GENERIC_GENDISP_HXX
      21             : #define INCLUDED_VCL_INC_GENERIC_GENDISP_HXX
      22             : 
      23             : #include <sal/types.h>
      24             : #include <osl/mutex.h>
      25             : #include <osl/conditn.hxx>
      26             : #include <salwtype.hxx>
      27             : #include <vcl/dllapi.h>
      28             : #include <list>
      29             : #include <vector>
      30             : 
      31             : class SalFrame;
      32             : class VCL_DLLPUBLIC SalGenericDisplay
      33             : {
      34             :     oslMutex m_aEventGuard;
      35             :     struct SalUserEvent
      36             :     {
      37             :         SalFrame*  m_pFrame;
      38             :         void*      m_pData;
      39             :         sal_uInt16 m_nEvent;
      40             : 
      41          58 :         SalUserEvent( SalFrame* pFrame, void* pData,
      42             :                       sal_uInt16 nEvent )
      43             :                 : m_pFrame( pFrame ),
      44             :                   m_pData( pData ),
      45          58 :                   m_nEvent( nEvent )
      46          58 :         {}
      47             :     };
      48             :     std::list< SalUserEvent > m_aUserEvents;
      49             : protected:
      50             :     SalFrame* m_pCapture;
      51             :     std::list<SalFrame*> m_aFrames;
      52             : public:
      53             :                  SalGenericDisplay();
      54             :     virtual      ~SalGenericDisplay();
      55             : 
      56           0 :     inline void  EventGuardAcquire() { osl_acquireMutex( m_aEventGuard ); }
      57           0 :     inline void  EventGuardRelease() { osl_releaseMutex( m_aEventGuard ); }
      58             : 
      59             :     void registerFrame( SalFrame* pFrame );
      60             :     virtual void deregisterFrame( SalFrame* pFrame );
      61             :     void emitDisplayChanged();
      62             : 
      63             :     // Event handling
      64             :     virtual void PostUserEvent() = 0;
      65             : 
      66             :     void SendInternalEvent( SalFrame* pFrame, void* pData, sal_uInt16 nEvent = SALEVENT_USEREVENT );
      67             :     void CancelInternalEvent( SalFrame* pFrame, void* pData, sal_uInt16 nEvent );
      68             :     bool DispatchInternalEvent();
      69             :     bool HasUserEvents() const;
      70             : 
      71           0 :     bool     MouseCaptured( const SalFrame *pFrameData ) const
      72           0 :                         { return m_pCapture == pFrameData; }
      73           0 :     SalFrame*    GetCaptureFrame() const
      74           0 :                         { return m_pCapture; }
      75             : };
      76             : 
      77             : #endif // INCLUDED_VCL_INC_GENERIC_GENDISP_HXX
      78             : 
      79             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */