Java 类org.w3c.dom.smil.ElementParallelTimeContainer 实例源码

private static ArrayList<TimelineEntry> getParTimeline(
        ElementParallelTimeContainer par, double offset, double maxOffset) {
    ArrayList<TimelineEntry> timeline = new ArrayList<>();

    // Set my begin at first
    TimeList myBeginList = par.getBegin();
    /*
     * Begin list only contain 1 begin time which has been resolved.
     * @see com.android.mms.dom.smil.ElementParallelTimeContainerImpl#getBegin()
     */
    Time begin = myBeginList.item(0);
    double beginOffset = begin.getResolvedOffset() + offset;
    if (beginOffset > maxOffset) {
        // This element can't be started.
        return timeline;
    }
    TimelineEntry myBegin = new TimelineEntry(beginOffset, par, TimelineEntry.ACTION_BEGIN);
    timeline.add(myBegin);

    TimeList myEndList = par.getEnd();
    /*
     * End list only contain 1 end time which has been resolved.
     * @see com.android.mms.dom.smil.ElementParallelTimeContainerImpl#getEnd()
     */
    Time end = myEndList.item(0);
    double endOffset = end.getResolvedOffset() + offset;
    if (endOffset > maxOffset) {
        endOffset = maxOffset;
    }
    TimelineEntry myEnd = new TimelineEntry(endOffset, par, TimelineEntry.ACTION_END);

    maxOffset = endOffset;

    NodeList children = par.getTimeChildren();
    for (int i = 0; i < children.getLength(); ++i) {
        ElementTime child = (ElementTime) children.item(i);
        ArrayList<TimelineEntry> childTimeline = getTimeline(child, offset, maxOffset);
        timeline.addAll(childTimeline);
    }

    Collections.sort(timeline, sTimelineEntryComparator);

    // Add end-event to timeline for all active children
    NodeList activeChildrenAtEnd = par.getActiveChildrenAt(
            (float) (endOffset - offset) * 1000);
    for (int i = 0; i < activeChildrenAtEnd.getLength(); ++i) {
        timeline.add(new TimelineEntry(endOffset,
                (ElementTime) activeChildrenAtEnd.item(i),
                TimelineEntry.ACTION_END));
    }

    // Set my end at last
    timeline.add(myEnd);

    return timeline;
}

private static ArrayList<TimelineEntry> getParTimeline(
        ElementParallelTimeContainer par, double offset, double maxOffset) {
    ArrayList<TimelineEntry> timeline = new ArrayList<TimelineEntry>();

    // Set my begin at first
    TimeList myBeginList = par.getBegin();
    /*
     * Begin list only contain 1 begin time which has been resolved.
     * @see com.android.mms.dom.smil.ElementParallelTimeContainerImpl#getBegin()
     */
    Time begin = myBeginList.item(0);
    double beginOffset = begin.getResolvedOffset() + offset;
    if (beginOffset > maxOffset) {
        // This element can't be started.
        return timeline;
    }
    TimelineEntry myBegin = new TimelineEntry(beginOffset, par, TimelineEntry.ACTION_BEGIN);
    timeline.add(myBegin);

    TimeList myEndList = par.getEnd();
    /*
     * End list only contain 1 end time which has been resolved.
     * @see com.android.mms.dom.smil.ElementParallelTimeContainerImpl#getEnd()
     */
    Time end = myEndList.item(0);
    double endOffset = end.getResolvedOffset() + offset;
    if (endOffset > maxOffset) {
        endOffset = maxOffset;
    }
    TimelineEntry myEnd = new TimelineEntry(endOffset, par, TimelineEntry.ACTION_END);

    maxOffset = endOffset;

    NodeList children = par.getTimeChildren();
    for (int i = 0; i < children.getLength(); ++i) {
        ElementTime child = (ElementTime) children.item(i);
        ArrayList<TimelineEntry> childTimeline = getTimeline(child, offset, maxOffset);
        timeline.addAll(childTimeline);
    }

    Collections.sort(timeline, sTimelineEntryComparator);

    // Add end-event to timeline for all active children
    NodeList activeChildrenAtEnd = par.getActiveChildrenAt(
            (float) (endOffset - offset) * 1000);
    for (int i = 0; i < activeChildrenAtEnd.getLength(); ++i) {
        timeline.add(new TimelineEntry(endOffset,
                (ElementTime) activeChildrenAtEnd.item(i),
                TimelineEntry.ACTION_END));
    }

    // Set my end at last
    timeline.add(myEnd);

    return timeline;
}