/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

#ifndef INCLUDED_VCL_INC_SALOBJ_HXX
#define INCLUDED_VCL_INC_SALOBJ_HXX

#include <vcl/dllapi.h>
#include <vcl/syschild.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include "salwtype.hxx"

struct SystemEnvData;

typedef void (*SALOBJECTPROC)(SystemChildWindow* pInst, SalObjEvent nEvent);

class VCL_PLUGIN_PUBLIC SalObject
{
    VclPtr<SystemChildWindow> m_pInst;
    SALOBJECTPROC       m_pCallback;
    bool                m_bMouseTransparent:1,
                        m_bEraseBackground:1;
public:
            SalObject() : m_pInst( nullptr ), m_pCallback( nullptr ), m_bMouseTransparent( false ), m_bEraseBackground( true ) {}
            virtual ~SalObject();

    virtual void                    ResetClipRegion() = 0;
    virtual void                    BeginSetClipRegion( sal_uInt32 nRects ) = 0;
    virtual void                    UnionClipRegion( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) = 0;
    virtual void                    EndSetClipRegion() = 0;

    virtual void                    SetPosSize( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) = 0;
    virtual void                    Show( bool bVisible ) = 0;
    virtual void                    Enable( bool /* nEnable */ ) {} // overridden by WinSalObject
    virtual void                    GrabFocus() {}
    virtual void                    Reparent(SalFrame* /*pFrame*/) {}

    virtual void                    SetForwardKey( bool /* bEnable */ ) {}

    virtual void                    SetLeaveEnterBackgrounds(const css::uno::Sequence<css::uno::Any>& /*rLeaveArgs*/, const css::uno::Sequence<css::uno::Any>& /*rEnterArgs*/) {}

    virtual const SystemEnvData*    GetSystemData() const = 0;

    virtual Size GetOptimalSize() const { return Size(); }

    void                            SetCallback( SystemChildWindow* pInst, SALOBJECTPROC pProc )
                                        { m_pInst = pInst; m_pCallback = pProc; }
    void                            CallCallback( SalObjEvent nEvent )
                                        { if (m_pCallback) m_pCallback( m_pInst, nEvent ); }

    void                            SetMouseTransparent( bool bMouseTransparent )
                                        { m_bMouseTransparent = bMouseTransparent; }
    bool                            IsMouseTransparent() const
                                        { return m_bMouseTransparent; }

    void                            EnableEraseBackground( bool bEnable )
                                        { m_bEraseBackground = bEnable; }
    bool                            IsEraseBackgroundEnabled() const
                                        { return m_bEraseBackground; }
};

#endif // INCLUDED_VCL_INC_SALOBJ_HXX

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