smldoc.cpp

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

            // Lock the composition if necessary
            BOOL bIsLocked = isSiteCompositionLocked();
            if (!bIsLocked)
            {
                lockSiteComposition();
            }
            // Now run through and adjust the size of the sites
            resetSites(pBox, FALSE);
            // Unlock the composition if necessary
            if (!bIsLocked)
            {
                unlockSiteComposition();
            }
            // If we're supposed to turn composition mode off,
            // then do it now. Otherwise, if we were already
            // in composition mode, then blt the site composition
            if (!bInCompositionMode)
            {
                turnSiteCompositionModeOFF();
            }
        }
    }
}

void CSmilDocumentRenderer::zoomRect(CSmilBasicBox* pBox,
                                     double         dScaleX,
                                     double         dScaleY)
{
    if (pBox)
    {
        // Set the zoom scale factors for this box
        pBox->m_dZoomScaleFactorX = dScaleX;
        pBox->m_dZoomScaleFactorY = dScaleY;
        // Save off the unscaled rect
        pBox->m_RectNoZoom = pBox->m_Rect;
        // Apply these scale factors to the rect (with rounding)
        // Make sure we don't round the left/right and top/bottom
        // independently - this can result in spurious width/height
        // changes, even when the actual floating point scaled width
        // and height doesn't change.
        double dWidth       = (double) HXxRECT_WIDTH(pBox->m_Rect);
        double dHeight      = (double) HXxRECT_HEIGHT(pBox->m_Rect);
        pBox->m_Rect.left   = (INT32) floor((((double) pBox->m_Rect.left)   * dScaleX) + 0.5);
        pBox->m_Rect.top    = (INT32) floor((((double) pBox->m_Rect.top)    * dScaleY) + 0.5);
        INT32 lScaledWidth  = (INT32) floor(dWidth * dScaleX + 0.5);
        INT32 lScaledHeight = (INT32) floor(dHeight * dScaleY + 0.5);
        pBox->m_Rect.right  = pBox->m_Rect.left + lScaledWidth;
        pBox->m_Rect.bottom = pBox->m_Rect.top  + lScaledHeight;
        // Run through any renderer site children and update
        // the scale factors of their site watchers
        if (pBox->m_pChildRendererSiteList &&
            m_pSiteWatcherMap)
        {
            LISTPOSITION pos = pBox->m_pChildRendererSiteList->GetHeadPosition();
            while (pos)
            {
                IHXSite* pRndSite = (IHXSite*) pBox->m_pChildRendererSiteList->GetNext(pos);
                if (pRndSite)
                {
                    // Look up the site watcher in the site watcher map
                    void* pVoid = NULL;
                    if (m_pSiteWatcherMap->Lookup((void*) pRndSite, pVoid) && pVoid)
                    {
                        CSmilSiteWatcher* pWatcher = (CSmilSiteWatcher*) pVoid;
                        pWatcher->SetZoomScaleFactors(dScaleX, dScaleY);
                    }
                }
            }
        }
        // Is this a region? If it has a parent, then it 
        // must be a region
        if (pBox->m_pParent)
        {
            // XXXMEH - these are holdover members which currently
            // need to be set, but should be taken out soon
            CSmilBasicRegion* pRegion = (CSmilBasicRegion*) pBox;
            pRegion->m_rect           = pRegion->m_Rect;
            pRegion->m_originalRect   = pRegion->m_Rect;
        }
        // Recurse through the children
        if (pBox->m_pChildList)
        {
            LISTPOSITION pos = pBox->m_pChildList->GetHeadPosition();
            while (pos)
            {
                CSmilBasicBox* pListBox =
                    (CSmilBasicBox*) pBox->m_pChildList->GetNext(pos);
                zoomRect(pListBox, dScaleX, dScaleY);
            }
        }
    }
}

void CSmilDocumentRenderer::recomputeBoxLayout(CSmilBasicBox* pBox, BOOL bOptimizeRedraws)
{
    if (pBox)
    {
        // Clear the resolved flags
        clearResolvedFlags(pBox);
        // Compute left and right of the region rects
        computeBoxDimension(pBox, BoxDimensionWidth);
        // Compute top and bottom of the region rects
        computeBoxDimension(pBox, BoxDimensionHeight);
        // We may currently be zoomed. If so, then
        // adjust for the zoom
        if (pBox->m_eResizeBehavior == ResizeZoom && !m_bDoNotZoom &&
            (pBox->m_dZoomScaleFactorX != 1.0 ||
             pBox->m_dZoomScaleFactorY != 1.0))
        {
            // Set all the scale factors
            zoomRect(pBox, pBox->m_dZoomScaleFactorX, pBox->m_dZoomScaleFactorY);
        }
        // Now run through and adjust the size of the sites
        resetSites(pBox, bOptimizeRedraws);
    }
}

HX_RESULT
CSmilDocumentRenderer::handleRegion(CSmilRegion* pElement)
{
    HX_RESULT retVal = HXR_OK;

    if (pElement)
    {
        // Create the CSmilBasicRegion element
        CSmilBasicRegion* pRegion = new CSmilBasicRegion(pElement);
        if (pRegion)
        {
            // Set the parent child relationships
            retVal = setRegionParentChild(pRegion);
            if (SUCCEEDED(retVal))
            {
                // Add this region to the map - m_pRegionMap is
                // the "owner" of the CSmilBasicRegion, so when it
                // goes away, all of the CSmilBasicRegion's go away.
                if (m_pRegionMap)
                {
                    m_pRegionMap->SetAt((const char*) pElement->m_pNode->m_id,
                                        (void*) pRegion);
                }
            }
        }
        else
        {
            retVal = HXR_OUTOFMEMORY;
        }
    }
    else
    {
        retVal = HXR_FAIL;
    }

    return retVal;
}

HX_RESULT
CSmilDocumentRenderer::handleRegPoint(CSmilRegPoint* pElement)
{
    HX_RESULT retVal = HXR_OK;

    if (pElement && pElement->m_pNode)
    {
        // Does the map already exist
        if (!m_pRegPointMap)
        {
            // Create the map
            m_pRegPointMap = new CHXMapStringToOb();
        }
        if (m_pRegPointMap)
        {
            // Add this regPoint to the map
            m_pRegPointMap->SetAt((const char*) pElement->m_pNode->m_id,
                                  (void*) pElement);
        }
        else
        {
            retVal = HXR_OUTOFMEMORY;
        }
    }
    else
    {
        retVal = HXR_FAIL;
    }

    return retVal;
}

#if defined(HELIX_FEATURE_SMIL2_MULTIWINDOWLAYOUT)

HX_RESULT
CSmilDocumentRenderer::handleViewport(CSmilViewport* pElement)
{
    HX_RESULT retVal = HXR_FAIL;

    if (pElement)
    {
        // Does the viewport list exist yet?
        if (!m_pViewportList)
        {
            // Create the list
            m_pViewportList = new CHXSimpleList();
        }
        if (m_pViewportList)
        {
            // Create a viewport object
            CSmilBasicViewport* pPort = new CSmilBasicViewport(pElement);
            if (pPort)
            {
                // Add it to the list
                m_pViewportList->AddTail((void*) pPort);
                // Clear the return value
                retVal = HXR_OK;
            }
        }
    }

    return retVal;
}

#endif /* #if defined(HELIX_FEATURE_SMIL2_MULTIWINDOWLAYOUT) */

#if defined(HELIX_FEATURE_SMIL2_TRANSITIONS)

HX_RESULT CSmilDocumentRenderer::handleTransition(CSmilTransition* pTrans)
{
    HX_RESULT retVal = HXR_FAIL;

    if (pTrans)
    {
        // Create the transition map if necessary
        if (!m_pTransitionMap)
        {
            m_pTransitionMap = new CHXMapStringToOb();
        }
        if (m_pTransitionMap)
        {
            // Create a transition info object
            CSmilTransitionInfo* pInfo = new CSmilTransitionInfo(pTrans, m_pContext);
            if (pInfo)
            {
                // Put this info object in the map
                m_pTransitionMap->SetAt((const char*) pTrans->m_pNode->m_id,
                                        (void*) pInfo);
                // Clear the return value
                retVal = HXR_OK;
            }
        }
    }

    return retVal;
}

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

#if defined(HELIX_FEATURE_SMIL2_ANIMATION)

HX_RESULT CSmilDocumentRenderer::handleAnimate(CSmilAnimateElement* pAnimate)
{
    MLOG_ANIM(m_pErrorMessages,"CSmilDocumentRenderer::handleAnimate() id=%s tel=%s t=%lu\n",
                (const char*) pAnimate->m_pNode->m_id,
                (const char*) *pAnimate->m_pTargetElementID,
                pAnimate->m_ulDelay);
    HX_RESULT retVal = HXR_OK;

    if (pAnimate)
    {
        // XXXMEH - try here to schedule other animations and
        // elements that may be using this animate element as
        // a sync-arc. This should get us through interop, but this
        // needs to be re-examined later.
        m_pSmilParser->durationResolved(pAnimate->m_pNode->m_id,
                                        pAnimate->m_ulActiveDuration);
        // Add this to the animation map
        if (!m_pAnimationMap)
        {
            m_pAnimationMap = new CHXMapStringToOb();
        }
        if (m_pAnimationMap)
        {
            m_pAnimationMap->SetAt(pAnimate->m_pNode->m_id, (void*) pAnimate);
        }
        // Update the duration contributed to
        // only by animations
        UINT32 ulAnimEnd = pAnimate->m_ulDelay + pAnimate->m_ulActiveDuration;
        if (ulAnimEnd > m_ulAnimDuration)
        {
            m_ulAnimDuration = ulAnimEnd;
        }
        // See if we've already scheduled an event for
        // this animate element
        CSmilAnimateEvent* pAnimEvent = getAnimateEvent(pAnimate);
        if (pAnimEvent)
        {
            // We HAVE already scheduled an event
            // for this animate element. This is most likely
            // an interactive animation which can begin
            // several times. We should adjust the time for
            // this event instead of adding a new event.
            //
            // Remove the event from the queue
            removeEvent(pAnimEvent);
            // Update the event time
            pAnimEvent->m_ulEventTime = pAnimate->m_ulDelay;
            // Re-insert into the queue with the new time
            insertEvent(pAnimEvent);
        }
        else
        {
            // We have NOT already scheduled an event
            // for this animate element
            //
            // Schedule the begin animation event
            UINT16 usGroupIndexShifted = m_usAnimBaseGroupIndex + pAnimate->m_pNode->m_nGroup;
            CSmilAnimateEvent* pEvent = new CSmilAnimateEvent(usGroupIndexShifted,
                                                              pAnimate->m_ulDelay,
                                                              FALSE,
                                                              pAnimate,
                                                              this,
                                                              m_pSmilParser);
            if (pEvent)
            {
                // Put the event only the timeline
                insertEvent(pEvent);
            }
        }
    }
    else
    {
        retVal = HXR_FAIL;
    }

    return retVal;
}

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

HX_RESULT CSmilDocumentRenderer::handleRemoveTimeUpdate(CSmilElement* pElement,
                                                        UINT32        ulRemoveTime)
{
    MLOG_EVENT(m_pErrorMessages,
               "handleRemoveTimeUpdate(0x%08x,%lu)\n\tmediaID=%s\n\ttick=%lu\n",
               pElement, ulRemoveTime,
               (const char*) pElement->m_pNode->m_id,
               HX_GET_BETTERTICKCOUNT());
    HX_RESULT retVal = HXR_OK;

    if (pElement && pElement->m_pNode &&
        m_pEventList && m_pEventList->GetCount() > 0)
    {
        // Search through the event queue to find
        // the hide event for this element.
        CHXSimpleList cTmp;
        const char*   pszID = (const char*) pElement->m_pNode->m_id;
        LISTPOSITION  pos   = m_pEventList->GetHeadPosition();
        while (pos)
        {
            BOOL              bRemoved   = FALSE;
            CSmilLayoutEvent* pListEvent = (CSmilLayoutEvent*) m_pEventList->GetAt(pos);
            if (pListEvent && pListEvent->m_type == CSmilLayoutEvent::eHideSite)
            {
                CSmilShowSiteEvent* pListHide = (CSmilShowSiteEvent*) pListEvent;
                if (!strcmp(pszID, pListHide->getMediaID()) &&
                    pListHide->m_ulEventTime != ulRemoveTime)
                {
                    MLOG_EVENT(m_pErrorMessages,
                               "\tRemoving event from list (%s,%lu,%u,%lu,%lu,%s,%s) tick=%lu\n",
                               pListHide->getEventTypeName(),
                               pListHide->m_ulEventTime,
                               pListHide->m_uGroupIndex,
                               pListHide->m_bOnlyHideSite,
                               pListHide->m_bIgnorEvent,
                               pListHide->getMediaID(),
                               pListHide->getRegionID(),
                               HX_GET_BETTERTICKCOUNT());
                    // Remove the event from the list
                    pos = m_pEventList->RemoveAt(pos);
                    // Set the flag
                    bRemoved = TRUE;
                    // Save onto the temporary list
                    cTmp.AddTail((void*) pListHide);
                }
            }
            if (!bRemoved)
            {
                m_pEventList->GetNext(pos);
            }
        }
        // Did we remove any events?
        if (cTmp.GetCount() > 0)
        {
            // Loop through the removed events
            pos = cTmp.GetHeadPosition();
            while (pos)