C++ LayerAndroid::setShouldInheritFromRootTransform方法代码示例

LayerAndroid* deserializeLayer(int version, 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 {
        ALOGV("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();

    // Keep the legacy serialization/deserialization format...
    bool isFixed = stream->readBool();

    layer->m_backgroundColorSet = stream->readBool();

    bool isIframe = stream->readBool();
    // If we are a scrollable layer android, we are an iframe content
    if (isIframe && type == LTScrollableLayerAndroid) {
         IFrameContentLayerAndroid* iframeContent = new IFrameContentLayerAndroid(*layer);
         layer->unref();
         layer = iframeContent;
    } else if (isIframe) { // otherwise we are just the iframe (we use it to compute offset)
         IFrameLayerAndroid* iframe = new IFrameLayerAndroid(*layer);
         layer->unref();
         layer = iframe;
    }

    if (isFixed) {
        FixedPositioning* fixedPosition = new FixedPositioning(layer);

        fixedPosition->m_fixedLeft = readSkLength(stream);
        fixedPosition->m_fixedTop = readSkLength(stream);
        fixedPosition->m_fixedRight = readSkLength(stream);
        fixedPosition->m_fixedBottom = readSkLength(stream);
        fixedPosition->m_fixedMarginLeft = readSkLength(stream);
        fixedPosition->m_fixedMarginTop = readSkLength(stream);
        fixedPosition->m_fixedMarginRight = readSkLength(stream);
        fixedPosition->m_fixedMarginBottom = readSkLength(stream);
        fixedPosition->m_fixedRect = readSkRect(stream);
        fixedPosition->m_renderLayerPos.setX(stream->readS32());
        fixedPosition->m_renderLayerPos.setY(stream->readS32());

        layer->setFixedPosition(fixedPosition);
    } else {
        // Not a fixed element, bypass the values in the stream
        readSkLength(stream); // fixedLeft
        readSkLength(stream); // fixedTop
        readSkLength(stream); // fixedRight
        readSkLength(stream); // fixedBottom
        readSkLength(stream); // fixedMarginLeft
        readSkLength(stream); // fixedMarginTop
        readSkLength(stream); // fixedMarginRight
        readSkLength(stream); // fixedMarginBottom
        readSkRect(stream);   // fixedRect
        stream->readS32();    // renderLayerPos.x()
        stream->readS32();    // renderLayerPos.y()
    }

    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) {
        SkPicture* picture = new SkPicture(stream);
        PictureLayerContent* content = new PictureLayerContent(picture);
        layer->setContent(content);
        SkSafeUnref(content);
//.........这里部分代码省略.........

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;
}