C++ (Cpp) isSVGGradientElement示例

示例#1

文件： SVGLinearGradientElement.cpp 项目： dp7/blink-crosswalk

bool SVGLinearGradientElement::collectGradientAttributes(LinearGradientAttributes& attributes)
{
    if (!renderer())
        return false;

    HashSet<SVGGradientElement*> processedGradients;
    SVGGradientElement* current = this;

    setGradientAttributes(current, attributes);
    processedGradients.add(current);

    while (true) {
        // Respect xlink:href, take attributes from referenced element
        Node* refNode = SVGURIReference::targetElementFromIRIString(current->href()->currentValue()->value(), treeScope());
        if (refNode && isSVGGradientElement(*refNode)) {
            current = toSVGGradientElement(refNode);

            // Cycle detection
            if (processedGradients.contains(current))
                return true;

            if (!current->renderer())
                return false;

            setGradientAttributes(current, attributes, isSVGLinearGradientElement(*current));
            processedGradients.add(current);
        } else {
            return true;
        }
    }

    ASSERT_NOT_REACHED();
    return false;
}

示例#2

文件： SVGRadialGradientElement.cpp 项目： RobinWuDev/Qt

bool SVGRadialGradientElement::collectGradientAttributes(RadialGradientAttributes& attributes)
{
    if (!renderer())
        return false;

    WillBeHeapHashSet<RawPtrWillBeMember<SVGGradientElement> > processedGradients;
    SVGGradientElement* current = this;

    setGradientAttributes(current, attributes);
    processedGradients.add(current);

    while (true) {
        // Respect xlink:href, take attributes from referenced element
        Node* refNode = SVGURIReference::targetElementFromIRIString(current->href()->currentValue()->value(), treeScope());
        if (refNode && isSVGGradientElement(*refNode)) {
            current = toSVGGradientElement(refNode);

            // Cycle detection
            if (processedGradients.contains(current))
                break;

            if (!current->renderer())
                return false;

            setGradientAttributes(current, attributes, isSVGRadialGradientElement(*current));
            processedGradients.add(current);
        } else {
            break;
        }
    }

    // Handle default values for fx/fy
    if (!attributes.hasFx())
        attributes.setFx(attributes.cx());

    if (!attributes.hasFy())
        attributes.setFy(attributes.cy());

    return true;
}

示例#3

文件： SVGRadialGradientElement.cpp 项目： aosm/WebCore

bool SVGRadialGradientElement::collectGradientAttributes(RadialGradientAttributes& attributes)
{
    if (!renderer())
        return false;

    HashSet<SVGGradientElement*> processedGradients;
    SVGGradientElement* current = this;

    setGradientAttributes(*current, attributes);
    processedGradients.add(current);

    while (true) {
        // Respect xlink:href, take attributes from referenced element
        Node* refNode = SVGURIReference::targetElementFromIRIString(current->href(), document());
        if (refNode && isSVGGradientElement(*refNode)) {
            current = toSVGGradientElement(refNode);

            // Cycle detection
            if (processedGradients.contains(current))
                break;

            if (!current->renderer())
                return false;

            setGradientAttributes(*current, attributes, current->hasTagName(SVGNames::radialGradientTag));
            processedGradients.add(current);
        } else
            break;
    }

    // Handle default values for fx/fy
    if (!attributes.hasFx())
        attributes.setFx(attributes.cx());

    if (!attributes.hasFy())
        attributes.setFy(attributes.cy());

    return true;
}

示例#4

文件： RenderSVGGradientStop.cpp 项目： 335969568/Blink-1

SVGGradientElement* RenderSVGGradientStop::gradientElement() const
{
    ContainerNode* parentNode = node()->parentNode();
    ASSERT(parentNode);
    return isSVGGradientElement(*parentNode) ? toSVGGradientElement(parentNode) : 0;
}