sitewatc.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: sitewatc.cpp,v 1.2.12.2 2004/07/13 18:31:00 bobclark Exp $
 * 
 * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (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.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * 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 ***** */

// system
#include <math.h>
#include <time.h>     // smlparse.h dependency
// include
#include "hxtypes.h"
#include "hxwintyp.h"
#include "hxcom.h"
#include "hxwin.h"
#include "smiltype.h"
#include "hxengin.h"
#include "hxcore.h"  // smldoc.h   dependency
#include "hxgroup.h" // smldoc.h   dependency
#include "hxsite2.h" // smldoc.h   dependency
#include "ihxpckts.h" // smldoc.h   dependency
#include "hxvport.h" // smldoc.h   dependency
#include "hxclsnk.h" // smldoc.h   dependency
#include "hxmmrkr.h" // smldoc.h   dependency
#include "hxinter.h" // smldoc.h   dependency
#include "hxxml.h"   // smlparse.h dependency
#include "hxerror.h"
// pnmisc
#include "hxwinver.h" // smlparse.h dependency
#include "hxtick.h"
// pncont
#include "hxstring.h"
#include "hxmap.h"
#include "hxslist.h"
// rnxmllib
#include "hxxmlprs.h" // smlparse.h dependency
// rmasmil
#include "smlelem.h"
#include "smlparse.h"
// smlrendr
#include "evnthook.h" // smldoc.h   dependency
#include "siteuser.h" // smldoc.h   dependency
#include "passivsw.h" // smldoc.h   dependency
#include "layout.h"
#include "smldoc.h"
#include "sitewatc.h"
// pndebug
#include "smlrmlog.h"
#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static const char HX_THIS_FILE[] = __FILE__;
#endif

CSmilSiteWatcher::CSmilSiteWatcher(CSmilDocumentRenderer* pDoc,
                                   const char*            pID,
                                   BOOL                   bIsChildSite,
                                   const char*            pSourceID) :
    m_id(pID),
    m_SourceID(pSourceID)
{
    // Initialize the members
    m_lRefCount              = 0;
    m_pDoc                   = pDoc;
    m_pSite                  = NULL;
    m_Rect.m_dLeft           = 0.0;
    m_Rect.m_eLeftType       = CSS2TypeAuto;
    m_Rect.m_dTop            = 0.0;
    m_Rect.m_eTopType        = CSS2TypeAuto;
    m_Rect.m_dRight          = 0.0;
    m_Rect.m_eRightType      = CSS2TypeAuto;
    m_Rect.m_dBottom         = 0.0;
    m_Rect.m_eBottomType     = CSS2TypeAuto;
    m_Rect.m_dWidth          = 0.0;
    m_Rect.m_eWidthType      = CSS2TypeAuto;
    m_Rect.m_dHeight         = 0.0;
    m_Rect.m_eHeightType     = CSS2TypeAuto;
    m_RegPoint.m_dLeft       = 0.0;
    m_RegPoint.m_eLeftType   = CSS2TypeAuto;
    m_RegPoint.m_dTop        = 0.0;
    m_RegPoint.m_eTopType    = CSS2TypeAuto;
    m_RegPoint.m_dRight      = 0.0;
    m_RegPoint.m_eRightType  = CSS2TypeAuto;
    m_RegPoint.m_dBottom     = 0.0;
    m_RegPoint.m_eBottomType = CSS2TypeAuto;
    m_RegPoint.m_eRegAlign   = RegAlignTopLeft;
    m_MediaSize.cx           = 0;
    m_MediaSize.cy           = 0;
    m_eResizeBehavior        = ResizeZoom;
    m_dZoomScaleFactorX      = 1.0;
    m_dZoomScaleFactorY      = 1.0;
    m_bIsChildSite           = bIsChildSite;
    m_bChangingSize          = FALSE;
    m_bFirstSizeChange       = TRUE;
    m_bMediaSizeSet          = FALSE;
    m_bMediaIsBrush          = FALSE;
    // Initialize the RegPoint
    if(m_pDoc)
    {
        m_pDoc->AddRef();
        // RegPoints can come from two places - they can
        // either be idrefs or they can be predefined
        CSmilSource* pSource = m_pDoc->getSource(pSourceID);
        if (pSource)
        {
            // Check if this is a <brush>
            if (pSource->m_pNode &&
                pSource->m_pNode->m_tag == SMILBrush)
            {
                m_bMediaIsBrush = TRUE;
            }
            // Copy the Layout rect. This is the subregion
            // positioning rect which was specified on the
            // media element (i.e. - <img ... left="20" .../>)
            m_Rect = pSource->m_Rect;
            // Get the regPoint
            if (pSource->m_bRegPointIsPredef)
            {
                // Since the regPoint is predefined, then
                // there is no regAlign from the <regPoint>.
                // Therefore, we need to use the regAlign
                // that was specified with the source
                m_RegPoint.m_eRegAlign = pSource->m_eRegAlign;
                // For predefined regPoints, they are always
                // expressed in percentages, not in absolute lengths
                m_RegPoint.m_eLeftType = CSS2TypePercentage;
                m_RegPoint.m_eTopType  = CSS2TypePercentage;
                // Compute the regPoint
                switch (pSource->m_ePredefRegPoint)
                {
                    case RegAlignTopLeft:
                        {
                            m_RegPoint.m_dLeft = 0.0;
                            m_RegPoint.m_dTop  = 0.0;
                        }
                        break;
                    case RegAlignTopMid:
                        {
                            m_RegPoint.m_dLeft = 50.0;
                            m_RegPoint.m_dTop  =  0.0;
                        }
                        break;
                    case RegAlignTopRight:
                        {
                            m_RegPoint.m_dLeft = 100.0;
                            m_RegPoint.m_dTop  =   0.0;
                        }
                        break;
                    case RegAlignMidLeft:
                        {
                            m_RegPoint.m_dLeft =  0.0;
                            m_RegPoint.m_dTop  = 50.0;
                        }
                        break;
                    case RegAlignCenter:
                        {
                            m_RegPoint.m_dLeft = 50.0;
                            m_RegPoint.m_dTop  = 50.0;
                        }
                        break;
                    case RegAlignMidRight:
                        {
                            m_RegPoint.m_dLeft = 100.0;
                            m_RegPoint.m_dTop  =  50.0;
                        }
                        break;
                    case RegAlignBottomLeft:
                        {
                            m_RegPoint.m_dLeft =   0.0;
                            m_RegPoint.m_dTop  = 100.0;
                        }
                        break;
                    case RegAlignBottomMid:
                        {
                            m_RegPoint.m_dLeft =  50.0;
                            m_RegPoint.m_dTop  = 100.0;
                        }
                        break;
                    case RegAlignBottomRight:
                        {
                            m_RegPoint.m_dLeft = 100.0;
                            m_RegPoint.m_dTop  = 100.0;
                        }
                        break;
                }
            }
            else
            {
                // The regPoint is not predefined, but rather
                // is an idref to a <regPoint> element. So look
                // up that element
                CSmilRegPoint* pRegPt = m_pDoc->getRegPoint(pSource->m_RegPoint);
                if (pRegPt)
                {
                    // We simply need to copy the RegPoint struct
                    // from the CSmilRegPoint element
                    m_RegPoint = pRegPt->m_RegPoint;
                    // <regPoint> elements have a default "regAlign"
                    // attribute. However, the media object element
                    // can override this regAlign value.
                    if (pSource->m_bRegAlignSpecified)
                    {
                        // The media object element DID specify
                        // a regAlign attribute, so this attribute
                        // overrides the regAlign attribute in the
                        // <regPoint> element.
                        m_RegPoint.m_eRegAlign = pSource->m_eRegAlign;
                    }
                }
            }
            // Now we can compute the fit attribute. The default
            // fit attribute is specified with the <region>. However,
            // the media object element can override this attribute.
            // So first we need to get the region.
            CSmilBasicRegion* pRegion = m_pDoc->getRegionByID(m_id);
            if (pRegion)
            {
                // Initially assign the region's fit value
                m_eFit = pRegion->m_eFit;
            }
            // Now if the source has specified a fit
            // value, then override the region's fit value
            if (pSource->m_bFitSpecified)
            {
                m_eFit = pSource->m_eFit;
            }
        }
    }
}

CSmilSiteWatcher::~CSmilSiteWatcher()
{
    close();
}

HX_RESULT CSmilSiteWatcher::close()
{
    HX_RELEASE(m_pDoc);
    HX_RELEASE(m_pSite);

    return HXR_OK;
}

void CSmilSiteWatcher::SetZoomScaleFactors(double dX, double dY)
{
    if (dX > 0.0)
    {
        m_dZoomScaleFactorX = dX;
    }
    if (dY > 0.0)
    {
        m_dZoomScaleFactorY = dY;
    }
}

void CSmilSiteWatcher::SetResizeBehavior(ResizeBehavior eBehavior)
{
    m_eResizeBehavior = eBehavior;
}

STDMETHODIMP CSmilSiteWatcher::QueryInterface(REFIID riid, void** ppvObj)
{
    HX_RESULT retVal = HXR_OK;

    if(IsEqualIID(riid, IID_IUnknown))
    {
        AddRef();
        *ppvObj = this;
    }
    else if(IsEqualIID(riid, IID_IHXSiteWatcher))
    {
        AddRef();
        *ppvObj = (IHXSiteWatcher*) this;
    }
    else
    {
        *ppvObj = NULL;
        retVal  = HXR_NOINTERFACE;
    }

    return retVal;
}

STDMETHODIMP_(ULONG32) CSmilSiteWatcher::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

STDMETHODIMP_(ULONG32) CSmilSiteWatcher::Release()
{
    if(InterlockedDecrement(&m_lRefCount) > 0)