コード例 #1
0
void AndroidOpacityAnimation::applyForProgress(LayerAndroid* layer, float progress)
{
    // First, we need to get the from and to values
    int from, to;
    pickValues(progress, &from, &to);
    FloatAnimationValue* fromValue = (FloatAnimationValue*) m_operations->at(from);
    FloatAnimationValue* toValue = (FloatAnimationValue*) m_operations->at(to);

    ALOGV("[layer %d] opacity fromValue %x, key %.2f, toValue %x, key %.2f for progress %.2f",
          layer->uniqueId(),
          fromValue, fromValue->keyTime(),
          toValue, toValue->keyTime(), progress);

    // We now have the correct two values to work with, let's compute the
    // progress value

    const TimingFunction* timingFunction = fromValue->timingFunction();
    progress = applyTimingFunction(fromValue->keyTime(), toValue->keyTime(),
                                   progress, timingFunction);


    float value = fromValue->value() + ((toValue->value() - fromValue->value()) * progress);

    layer->setOpacity(value);
}
コード例 #2
0
bool GraphicsLayerAndroid::createAnimationFromKeyframes(const KeyframeValueList& valueList,
     const Animation* animation, const String& keyframesName, double beginTime)
{
    bool isKeyframe = valueList.size() > 2;
    TLOG("createAnimationFromKeyframes(%d), name(%s) beginTime(%.2f)",
        isKeyframe, keyframesName.latin1().data(), beginTime);

    switch (valueList.property()) {
    case AnimatedPropertyInvalid: break;
    case AnimatedPropertyWebkitTransform: break;
    case AnimatedPropertyBackgroundColor: break;
    case AnimatedPropertyOpacity: {
        MLOG("ANIMATEDPROPERTYOPACITY");

        KeyframeValueList* operationsList = new KeyframeValueList(AnimatedPropertyOpacity);
        for (unsigned int i = 0; i < valueList.size(); i++) {
            FloatAnimationValue* originalValue = (FloatAnimationValue*)valueList.at(i);
            PassRefPtr<TimingFunction> timingFunction(const_cast<TimingFunction*>(originalValue->timingFunction()));
            FloatAnimationValue* value = new FloatAnimationValue(originalValue->keyTime(),
                                                                 originalValue->value(),
                                                                 timingFunction);
            operationsList->insert(value);
        }

        RefPtr<AndroidOpacityAnimation> anim = AndroidOpacityAnimation::create(animation,
                                                                               operationsList,
                                                                               beginTime);
        if (keyframesName.isEmpty())
            anim->setName(propertyIdToString(valueList.property()));
        else
            anim->setName(keyframesName);

        m_contentLayer->addAnimation(anim.release());
        needsNotifyClient();
        return true;
    } break;
    }
    return false;
}