C++ (Cpp) SVGPaintServer::apply示例

示例#1

文件： SVGLayoutSupport.cpp 项目： kingysu/blink-crosswalk

bool SVGLayoutSupport::updateGraphicsContext(const PaintInfo& paintInfo, GraphicsContextStateSaver& stateSaver, const ComputedStyle& style, LayoutObject& layoutObject, LayoutSVGResourceMode resourceMode, const AffineTransform* additionalPaintServerTransform)
{
    ASSERT(paintInfo.context == stateSaver.context());

    GraphicsContext& context = *paintInfo.context;
    if (paintInfo.isRenderingClipPathAsMaskImage()) {
        if (resourceMode == ApplyToStrokeMode)
            return false;
        context.setFillColor(SVGComputedStyle::initialFillPaintColor());
        return true;
    }

    SVGPaintServer paintServer = SVGPaintServer::requestForLayoutObject(layoutObject, style, resourceMode);
    if (!paintServer.isValid())
        return false;

    if (additionalPaintServerTransform && paintServer.isTransformDependent())
        paintServer.prependTransform(*additionalPaintServerTransform);

    const SVGComputedStyle& svgStyle = style.svgStyle();
    float paintAlpha = resourceMode == ApplyToFillMode ? svgStyle.fillOpacity() : svgStyle.strokeOpacity();
    paintServer.apply(context, resourceMode, paintAlpha, stateSaver);

    if (resourceMode == ApplyToFillMode)
        context.setFillRule(svgStyle.fillRule());
    else
        applyStrokeStyleToContext(context, style, layoutObject);

    return true;
}

示例#2

文件： SVGRenderSupport.cpp 项目： kjthegod/WebKit

bool SVGRenderSupport::updateGraphicsContext(const PaintInfo& paintInfo, GraphicsContextStateSaver& stateSaver, RenderStyle* style, RenderObject& renderer, RenderSVGResourceMode resourceMode, const AffineTransform* additionalPaintServerTransform)
{
    ASSERT(style);
    ASSERT(paintInfo.context == stateSaver.context());

    GraphicsContext* context = paintInfo.context;
    if (paintInfo.isRenderingClipPathAsMaskImage()) {
        if (resourceMode == ApplyToStrokeMode)
            return false;
        context->setAlphaAsFloat(1);
        context->setFillColor(SVGRenderStyle::initialFillPaintColor());
        return true;
    }

    SVGPaintServer paintServer = SVGPaintServer::requestForRenderer(renderer, style, resourceMode);
    if (!paintServer.isValid())
        return false;

    if (additionalPaintServerTransform && paintServer.isTransformDependent())
        paintServer.prependTransform(*additionalPaintServerTransform);

    paintServer.apply(*context, resourceMode, &stateSaver);

    const SVGRenderStyle& svgStyle = style->svgStyle();

    if (resourceMode == ApplyToFillMode) {
        context->setAlphaAsFloat(svgStyle.fillOpacity());
        context->setFillRule(svgStyle.fillRule());
    } else {
        context->setAlphaAsFloat(svgStyle.strokeOpacity());
        applyStrokeStyleToContext(context, style, &renderer);
    }
    return true;
}