void RenderSVGShape::strokeShape(GraphicsContext* context) const
{
    ASSERT(m_path);
    Path* usePath = m_path.get();

    if (hasNonScalingStroke())
        usePath = nonScalingStrokePath(usePath, nonScalingStrokeTransform());

    context->strokePath(*usePath);
}
Exemple #2
0
void RenderSVGShape::strokeShape(GraphicsContext& context)
{
    if (!style().svgStyle().hasVisibleStroke())
        return;

    GraphicsContextStateSaver stateSaver(context, false);
    if (hasNonScalingStroke()) {
        AffineTransform nonScalingTransform = nonScalingStrokeTransform();
        if (!setupNonScalingStrokeContext(nonScalingTransform, stateSaver))
            return;
    }
    strokeShape(style(), context);
}
Exemple #3
0
bool RenderSVGShape::shapeDependentStrokeContains(const FloatPoint& point)
{
    ASSERT(m_path);
    BoundingRectStrokeStyleApplier applier(this, style());

    if (hasNonScalingStroke()) {
        AffineTransform nonScalingTransform = nonScalingStrokeTransform();
        Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform);

        return usePath->strokeContains(&applier, nonScalingTransform.mapPoint(point));
    }

    return m_path->strokeContains(&applier, point);
}
Exemple #4
0
bool RenderSVGShape::shapeDependentStrokeContains(const FloatPoint& point)
{
    ASSERT(m_path);
    StrokeData strokeData;
    SVGRenderSupport::applyStrokeStyleToStrokeData(&strokeData, style(), this);

    if (hasNonScalingStroke()) {
        AffineTransform nonScalingTransform = nonScalingStrokeTransform();
        Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform);

        return usePath->strokeContains(nonScalingTransform.mapPoint(point), strokeData);
    }

    return m_path->strokeContains(point, strokeData);
}
void LayoutSVGRect::updateShapeFromElement()
{
    m_usePathFallback = false;

    // Fallback to LayoutSVGShape and path-based hit detection if the rect
    // has rounded corners or a non-scaling or non-simple stroke.
    SVGLengthContext lengthContext(toSVGRectElement(element()));
    if (lengthContext.valueForLength(styleRef().svgStyle().rx(), styleRef(), SVGLengthMode::Width) > 0
        || lengthContext.valueForLength(styleRef().svgStyle().ry(), styleRef(), SVGLengthMode::Height) > 0
        || hasNonScalingStroke()
        || !definitelyHasSimpleStroke(style()->svgStyle())) {
        LayoutSVGShape::updateShapeFromElement();
        m_usePathFallback = true;
        return;
    }

    clearPath();
}
void LayoutSVGRect::updateShapeFromElement()
{
    // Before creating a new object we need to clear the cached bounding box
    // to avoid using garbage.
    m_fillBoundingBox = FloatRect();
    m_strokeBoundingBox = FloatRect();
    m_usePathFallback = false;
    SVGRectElement* rect = toSVGRectElement(element());
    ASSERT(rect);

    SVGLengthContext lengthContext(rect);
    FloatSize boundingBoxSize(
        lengthContext.valueForLength(styleRef().width(), styleRef(), SVGLengthMode::Width),
        lengthContext.valueForLength(styleRef().height(), styleRef(), SVGLengthMode::Height));

    // Spec: "A negative value is an error."
    if (boundingBoxSize.width() < 0 || boundingBoxSize.height() < 0)
        return;

    // Spec: "A value of zero disables rendering of the element."
    if (!boundingBoxSize.isEmpty()) {
        // Fallback to LayoutSVGShape and path-based hit detection if the rect
        // has rounded corners or a non-scaling or non-simple stroke.
        if (lengthContext.valueForLength(styleRef().svgStyle().rx(), styleRef(), SVGLengthMode::Width) > 0
                || lengthContext.valueForLength(styleRef().svgStyle().ry(), styleRef(), SVGLengthMode::Height) > 0
                || hasNonScalingStroke()
                || !definitelyHasSimpleStroke()) {
            LayoutSVGShape::updateShapeFromElement();
            m_usePathFallback = true;
            return;
        }
    }

    m_fillBoundingBox = FloatRect(
                            FloatPoint(
                                lengthContext.valueForLength(styleRef().svgStyle().x(), styleRef(), SVGLengthMode::Width),
                                lengthContext.valueForLength(styleRef().svgStyle().y(), styleRef(), SVGLengthMode::Height)),
                            boundingBoxSize);
    m_strokeBoundingBox = m_fillBoundingBox;
    if (style()->svgStyle().hasStroke())
        m_strokeBoundingBox.inflate(strokeWidth() / 2);
}
FloatRect LayoutSVGShape::calculateStrokeBoundingBox() const
{
    ASSERT(m_path);
    FloatRect strokeBoundingBox = m_fillBoundingBox;

    if (style()->svgStyle().hasStroke()) {
        StrokeData strokeData;
        SVGLayoutSupport::applyStrokeStyleToStrokeData(strokeData, styleRef(), *this);
        if (hasNonScalingStroke()) {
            AffineTransform nonScalingTransform = nonScalingStrokeTransform();
            if (nonScalingTransform.isInvertible()) {
                Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform);
                FloatRect strokeBoundingRect = usePath->strokeBoundingRect(strokeData);
                strokeBoundingRect = nonScalingTransform.inverse().mapRect(strokeBoundingRect);
                strokeBoundingBox.unite(strokeBoundingRect);
            }
        } else {
            strokeBoundingBox.unite(path().strokeBoundingRect(strokeData));
        }
    }

    return strokeBoundingBox;
}
Exemple #8
0
void RenderSVGRect::updateShapeFromElement()
{
    // Before creating a new object we need to clear the cached bounding box
    // to avoid using garbage.
    m_fillBoundingBox = FloatRect();
    m_innerStrokeRect = FloatRect();
    m_outerStrokeRect = FloatRect();

    // Fallback to RenderSVGShape if rect has rounded corners or a non-scaling stroke.
    if (rectElement().hasAttribute(SVGNames::rxAttr) || rectElement().hasAttribute(SVGNames::ryAttr) || hasNonScalingStroke()) {
        RenderSVGShape::updateShapeFromElement();
        m_usePathFallback = true;
        return;
    } else
        m_usePathFallback = false;

    SVGLengthContext lengthContext(&rectElement());
    FloatSize boundingBoxSize(rectElement().width().value(lengthContext), rectElement().height().value(lengthContext));
    if (boundingBoxSize.isEmpty())
        return;

    m_fillBoundingBox = FloatRect(FloatPoint(rectElement().x().value(lengthContext), rectElement().y().value(lengthContext)), boundingBoxSize);

    // To decide if the stroke contains a point we create two rects which represent the inner and
    // the outer stroke borders. A stroke contains the point, if the point is between them.
    m_innerStrokeRect = m_fillBoundingBox;
    m_outerStrokeRect = m_fillBoundingBox;

    if (style()->svgStyle()->hasStroke()) {
        float strokeWidth = this->strokeWidth();
        m_innerStrokeRect.inflate(-strokeWidth / 2);
        m_outerStrokeRect.inflate(strokeWidth / 2);
    }

    m_strokeBoundingBox = m_outerStrokeRect;

#if USE(CG)
    // CoreGraphics can inflate the stroke by 1px when drawing a rectangle with antialiasing disabled at non-integer coordinates, we need to compensate.
    if (style()->svgStyle()->shapeRendering() == SR_CRISPEDGES)
        m_strokeBoundingBox.inflate(1);
#endif
}
Exemple #9
0
void RenderSVGRect::updateShapeFromElement()
{
    // Before creating a new object we need to clear the cached bounding box
    // to avoid using garbage.
    m_fillBoundingBox = FloatRect();
    m_innerStrokeRect = FloatRect();
    m_outerStrokeRect = FloatRect();

    SVGLengthContext lengthContext(&rectElement());
    FloatSize boundingBoxSize(lengthContext.valueForLength(style().width(), LengthModeWidth), lengthContext.valueForLength(style().height(), LengthModeHeight));

    // Element is invalid if either dimension is negative.
    if (boundingBoxSize.width() < 0 || boundingBoxSize.height() < 0)
        return;

    // Rendering enabled? Spec: "A value of zero disables rendering of the element."
    if (!boundingBoxSize.isEmpty()) {
        if (rectElement().rx().value(lengthContext) > 0 || rectElement().ry().value(lengthContext) > 0 || hasNonScalingStroke()) {
            // Fall back to RenderSVGShape
            RenderSVGShape::updateShapeFromElement();
            m_usePathFallback = true;
            return;
        }
        m_usePathFallback = false;
    }

    m_fillBoundingBox = FloatRect(FloatPoint(lengthContext.valueForLength(style().svgStyle().x(), LengthModeWidth),
        lengthContext.valueForLength(style().svgStyle().y(), LengthModeHeight)),
        boundingBoxSize);

    // To decide if the stroke contains a point we create two rects which represent the inner and
    // the outer stroke borders. A stroke contains the point, if the point is between them.
    m_innerStrokeRect = m_fillBoundingBox;
    m_outerStrokeRect = m_fillBoundingBox;

    if (style().svgStyle().hasStroke()) {
        float strokeWidth = this->strokeWidth();
        m_innerStrokeRect.inflate(-strokeWidth / 2);
        m_outerStrokeRect.inflate(strokeWidth / 2);
    }

    m_strokeBoundingBox = m_outerStrokeRect;

#if USE(CG)
    // CoreGraphics can inflate the stroke by 1px when drawing a rectangle with antialiasing disabled at non-integer coordinates, we need to compensate.
    if (style().svgStyle().shapeRendering() == SR_CRISPEDGES)
        m_strokeBoundingBox.inflate(1);
#endif
}