C++ LayerAndroid::needsRepaint方法代码示例

LayerAndroid* deserializeLayer(SkStream* stream)
{
    int type = stream->readU8();
    if (type == LTNone)
        return 0;
    // Cast is to disambiguate between ctors.
    LayerAndroid *layer;
    if (type == LTLayerAndroid)
        layer = new LayerAndroid((RenderLayer*) 0);
    else if (type == LTScrollableLayerAndroid)
        layer = new ScrollableLayerAndroid((RenderLayer*) 0);
    else {
        XLOG("Unexpected layer type: %d, aborting!", type);
        return 0;
    }

    // Layer fields
    layer->setShouldInheritFromRootTransform(stream->readBool());
    layer->setOpacity(stream->readScalar());
    layer->setSize(stream->readScalar(), stream->readScalar());
    layer->setPosition(stream->readScalar(), stream->readScalar());
    layer->setAnchorPoint(stream->readScalar(), stream->readScalar());
    layer->setMatrix(readMatrix(stream));
    layer->setChildrenMatrix(readMatrix(stream));

    // LayerAndroid fields
    layer->m_haveClip = stream->readBool();
    layer->m_isFixed = stream->readBool();
    layer->m_backgroundColorSet = stream->readBool();
    layer->m_isIframe = stream->readBool();
    layer->m_fixedLeft = readSkLength(stream);
    layer->m_fixedTop = readSkLength(stream);
    layer->m_fixedRight = readSkLength(stream);
    layer->m_fixedBottom = readSkLength(stream);
    layer->m_fixedMarginLeft = readSkLength(stream);
    layer->m_fixedMarginTop = readSkLength(stream);
    layer->m_fixedMarginRight = readSkLength(stream);
    layer->m_fixedMarginBottom = readSkLength(stream);
    layer->m_fixedRect = readSkRect(stream);
    layer->m_renderLayerPos.setX(stream->readS32());
    layer->m_renderLayerPos.setY(stream->readS32());
    layer->m_backfaceVisibility = stream->readBool();
    layer->m_visible = stream->readBool();
    layer->m_backgroundColor = stream->readU32();
    layer->m_preserves3D = stream->readBool();
    layer->m_anchorPointZ = stream->readScalar();
    layer->m_drawOpacity = stream->readScalar();
    bool hasContentsImage = stream->readBool();
    if (hasContentsImage) {
        int size = stream->readU32();
        SkAutoMalloc storage(size);
        stream->read(storage.get(), size);
        SkFlattenableReadBuffer buffer(storage.get(), size);
        SkBitmap contentsImage;
        contentsImage.unflatten(buffer);
        SkBitmapRef* imageRef = new SkBitmapRef(contentsImage);
        layer->setContentsImage(imageRef);
        delete imageRef;
    }
    bool hasRecordingPicture = stream->readBool();
    if (hasRecordingPicture) {
        layer->m_recordingPicture = new SkPicture(stream);
    }
    int animationCount = stream->readU32(); // TODO: Support (maybe?)
    readTransformationMatrix(stream, layer->m_transform);
    readTransformationMatrix(stream, layer->m_childrenTransform);
    if (type == LTScrollableLayerAndroid) {
        ScrollableLayerAndroid* scrollableLayer =
                static_cast<ScrollableLayerAndroid*>(layer);
        scrollableLayer->m_scrollLimits.set(
                stream->readScalar(),
                stream->readScalar(),
                stream->readScalar(),
                stream->readScalar());
    }
    int childCount = stream->readU32();
    for (int i = 0; i < childCount; i++) {
        LayerAndroid *childLayer = deserializeLayer(stream);
        if (childLayer)
            layer->addChild(childLayer);
    }
    layer->needsRepaint();
    XLOG("Created layer with id %d", layer->uniqueId());
    return layer;
}