animattr.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 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * 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, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#ifndef ANIMATTR_H
#define ANIMATTR_H

enum
{
    kAttrNameUnknown,
    kAttrNameLeft,
    kAttrNameTop,
    kAttrNameRight,
    kAttrNameBottom,
    kAttrNameWidth,
    kAttrNameHeight,
    kAttrNameBackgroundColor,
    kAttrNameZIndex,
    kAttrNameSoundLevel,
    kAttrNameCoords,
    kAttrNameColor,
    kAttrNameLeftTop,
    kAttrNameMediaOpacity,
    kAttrNameBackgroundOpacity,
    kAttrNameValue,
    kNumAttrNames
};

#if defined(HELIX_FEATURE_SMIL2_ANIMATION)

class CAttr
{
public:
    CAttr(UINT32 ulAttrName = kAttrNameUnknown, const char* pszStr = NULL);
    CAttr(UINT32 ulAttrName,
          double dVal0,       CSS2Type eType0 = CSS2TypeAuto,
          double dVal1 = 0.0, CSS2Type eType1 = CSS2TypeAuto,
          double dVal2 = 0.0, CSS2Type eType2 = CSS2TypeAuto,
          double dVal3 = 0.0, CSS2Type eType3 = CSS2TypeAuto);
    CAttr(const CAttr& rAttr);
    virtual ~CAttr();

    enum
    {
        kVectorSize = 4
    };

    // Methods
    HX_RESULT     GetLastError() const { return m_lLastError; }
    UINT32        GetAttrName() const  { return m_ulAttrName; }
    static double Dist(CAttr* pAttr1, CAttr* pAttr2, CAttr* pDepend);
    static double GetAbsolute(CAttr* pAttr, UINT32 i, CAttr* pDepend);
    void          Interp(CAttr* pAttr1, double t1,
                         CAttr* pAttr2, double t2,
                         double t, CAttr* pDepend);
    void          Add(CAttr* pAttr, CAttr* pDepend);
    void          Mult(double dMult);
    void          Clamp();
    double        GetValueDouble(UINT32 i = 0) const;
    CSS2Type      GetCSS2Type(UINT32 i = 0) const;
    BOOL          IsRelative(UINT32 i = 0) const;
    const char*   GetValueString(UINT32 i = 0) const;
    // Operators
    CAttr&        operator = (const CAttr& rAttr);
protected:
    enum
    {
        kAttrTypeString,
        kAttrTypeRealScalar,
        kAttrTypeRealVector,
        kNumAttrTypes
    };

    HX_RESULT m_lLastError;
    UINT32    m_ulAttrName;
    UINT32    m_ulAttrType;
    double    m_dValue[kVectorSize];
    char*     m_pszValue;
    CSS2Type  m_eType[kVectorSize];

    static BOOL   Compatible(CAttr* pAttr1, CAttr* pAttr2);
    HX_RESULT     ParsePosLenValue(const char* pszStr,
                                   double&     rdValue,
                                   BOOL&       rbIsPercent);
};

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

#endif