layevent.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
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 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
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 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
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 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#ifndef LAYEVENT_H
#define LAYEVENT_H

// Forward declarations
typedef _INTERFACE IHXSite          IHXSite;
typedef _INTERFACE IHXErrorMessages IHXErrorMessages;
class CSmilDocumentRenderer;
class CHXString;
#if defined(HELIX_FEATURE_SMIL2_ANIMATION)
class CSmilAnimateElement;
#endif /* #if defined(HELIX_FEATURE_SMIL2_ANIMATION) */
class CSmilParser;
struct SMILPlayToAssoc;
struct SMILSiteInfo;

class CSmilLayoutEvent
{
public:
    CSmilLayoutEvent(UINT16 uGroupIndex,
                     UINT32 ulEventTime,
                     BOOL   bIgnorEvent);
    virtual ~CSmilLayoutEvent();

    virtual HX_RESULT   handleEvent(UINT32 ulTime) = 0;
    virtual IHXSite*   getRegionSite() = 0;
    virtual IHXSite*   getRendererSite() = 0;
    virtual void        setHandledFlag(BOOL bFlag) {}
    virtual BOOL        getHandledFlag()           { return FALSE; }
    const char*         getEventTypeName();
    BOOL                IsShowOrHideEvent() { return ((m_type == eShowSite ||
                                      m_type == eHideSite) ? TRUE : FALSE); }

    enum EventType
    {
        eShowSite,
        eHideSite, 
        eBeginTransition, 
        eEndTransition,
        eAnimate,
        eNumEventTypes // This should always be last
    } m_type;

    static const char* const m_pszEventTypeName[];

    UINT32      m_ulEventTime;
    UINT16      m_uGroupIndex;
    // ONLY HX_BITFIELD MEMBERS SHOULD GO BELOW THIS LINE!
    // ALL OTHER MEMBER TYPES SHOULD GO ABOVE THIS LINE!
    HX_BITFIELD m_bOnlyHideSite : 1;
    HX_BITFIELD m_bIgnorEvent : 1;
};

class CSmilShowSiteEvent: public CSmilLayoutEvent
{
public:
    CSmilShowSiteEvent(UINT16                 uGroupIndex,
                       UINT32                 ulEventTime,
                       IHXSite*              pSite,
                       IHXSite*              pRegionSite,
                       BOOL                   bShowSite,
                       BOOL                   bIgnorEvent = FALSE,
                       CSmilDocumentRenderer* pDoc = NULL,
                       const char*            pszMediaID = NULL,
                       const char*            pszRegionID = NULL,
                       ShowBackground         eShowBackground = ShowBackgroundAlways);
    virtual ~CSmilShowSiteEvent();

    // Required CSmilLayoutEvent methods
    virtual HX_RESULT   handleEvent(UINT32 ulTime);
    virtual IHXSite*   getRegionSite();
    virtual IHXSite*   getRendererSite();
    // CSmilShowSiteEvent methods
    BOOL                getShowSite();
    const char*         getMediaID();
    const char*         getRegionID();
private:
    IHXSite*              m_pRegionSite;
    IHXSite*              m_pSite;
    CSmilDocumentRenderer* m_pDoc;
    CHXString              m_MediaID;
    CHXString              m_RegionID;
    ShowBackground         m_eShowBackground;
    IHXErrorMessages*     m_pErrorMessages;
    // ONLY HX_BITFIELD MEMBERS SHOULD GO BELOW THIS LINE!
    // ALL OTHER MEMBER TYPES SHOULD GO ABOVE THIS LINE!
    HX_BITFIELD            m_bShowSite : 1;
};

#if defined(HELIX_FEATURE_SMIL2_TRANSITIONS)

class CSmilTransitionEvent: public CSmilLayoutEvent
{
public:
    CSmilTransitionEvent(UINT32                 ulEventTime,
                         SMILPlayToAssoc*       pAssoc,
                         SMILSiteInfo*          pSiteInfo,
                         BOOL                   bBeginTransition,
                         CSmilDocumentRenderer* pRenderer);
    CSmilTransitionEvent(UINT32                 ulEventTime,
                         SMILPlayToAssoc*       pAssoc,
                         IHXSite*              pSite,
                         BOOL                   bBeginTransition,
                         CSmilDocumentRenderer* pRenderer);
    virtual ~CSmilTransitionEvent();

    virtual HX_RESULT   handleEvent(UINT32 ulTime);
    virtual IHXSite*   getRegionSite();
    virtual IHXSite*   getRendererSite();
private:
    CSmilDocumentRenderer* m_pDocRenderer;
    SMILPlayToAssoc*       m_pPlayToAssoc;
    SMILSiteInfo*          m_pSiteInfo;
    IHXSite*              m_pSite;
};

#endif /* #if defined(HELIX_FEATURE_SMIL2_TRANSITIONS) */

#if defined(HELIX_FEATURE_SMIL2_ANIMATION)

class CSmilAnimateEvent: public CSmilLayoutEvent
{
public:
    CSmilAnimateEvent(UINT16                 uGroupIndex,
                      UINT32                 ulEventTime,
                      BOOL                   bIgnorEvent,
                      CSmilAnimateElement*   pElement,
                      CSmilDocumentRenderer* pDocRenderer,
                      CSmilParser*           pParser);
    CSmilAnimateEvent(const CSmilAnimateEvent& rEvent);
    virtual ~CSmilAnimateEvent();

    virtual HX_RESULT   handleEvent(UINT32 ulTime);
    virtual IHXSite*   getRegionSite ();
    virtual IHXSite*   getRendererSite();
    virtual void        setHandledFlag(BOOL bFlag) { m_bHandled = bFlag; }
    virtual BOOL        getHandledFlag()           { return m_bHandled;  }

    BOOL                isSameElement(CSmilAnimateElement* pAnim);
    BOOL                hasEventBasedBegin() const { return m_bEventBasedBegin; }
private:
    CSmilAnimateElement*   m_pElement;
    CSmilDocumentRenderer* m_pDocRenderer;
    CSmilParser*           m_pSmilParser;
    // ONLY HX_BITFIELD MEMBERS SHOULD GO BELOW THIS LINE!
    // ALL OTHER MEMBER TYPES SHOULD GO ABOVE THIS LINE!
    HX_BITFIELD            m_bEventBasedBegin : 1;
    HX_BITFIELD            m_bHandled : 1;
};

#endif /* #if defined(HELIX_FEATURE_SMIL2_ANIMATION) */

#endif