C++ FloatRoundedRect::radii方法代码示例

void GraphicsContext::fillRectWithRoundedHole(const IntRect& rect, const FloatRoundedRect& roundedHoleRect, const Color& color, ColorSpace colorSpace)
{
    if (paintingDisabled())
        return;

    Path path;
    path.addRect(rect);

    if (!roundedHoleRect.radii().isZero())
        path.addRoundedRect(roundedHoleRect);
    else
        path.addRect(roundedHoleRect.rect());

    WindRule oldFillRule = fillRule();
    Color oldFillColor = fillColor();
    ColorSpace oldFillColorSpace = fillColorSpace();
    
    setFillRule(RULE_EVENODD);
    setFillColor(color, colorSpace);

    fillPath(path);
    
    setFillRule(oldFillRule);
    setFillColor(oldFillColor, oldFillColorSpace);
}

void RenderThemeSafari::paintMenuListButtonGradients(const RenderObject& o, const PaintInfo& paintInfo, const IntRect& r)
{
    if (r.isEmpty())
        return;

    CGContextRef context = paintInfo.context->platformContext();

    paintInfo.context->save();

    FloatRoundedRect bound = FloatRoundedRect(o.style().getRoundedBorderFor(r));
    int radius = bound.radii().topLeft().width();

    CGColorSpaceRef cspace = deviceRGBColorSpaceRef();

    FloatRect topGradient(r.x(), r.y(), r.width(), r.height() / 2.0f);
    struct CGFunctionCallbacks topCallbacks = { 0, TopGradientInterpolate, NULL };
    RetainPtr<CGFunctionRef> topFunction = adoptCF(CGFunctionCreate(NULL, 1, NULL, 4, NULL, &topCallbacks));
    RetainPtr<CGShadingRef> topShading = adoptCF(CGShadingCreateAxial(cspace, CGPointMake(topGradient.x(), topGradient.y()), CGPointMake(topGradient.x(), topGradient.maxY()), topFunction.get(), false, false));

    FloatRect bottomGradient(r.x() + radius, r.y() + r.height() / 2.0f, r.width() - 2.0f * radius, r.height() / 2.0f);
    struct CGFunctionCallbacks bottomCallbacks = { 0, BottomGradientInterpolate, NULL };
    RetainPtr<CGFunctionRef> bottomFunction = adoptCF(CGFunctionCreate(NULL, 1, NULL, 4, NULL, &bottomCallbacks));
    RetainPtr<CGShadingRef> bottomShading = adoptCF(CGShadingCreateAxial(cspace, CGPointMake(bottomGradient.x(),  bottomGradient.y()), CGPointMake(bottomGradient.x(), bottomGradient.maxY()), bottomFunction.get(), false, false));

    struct CGFunctionCallbacks mainCallbacks = { 0, MainGradientInterpolate, NULL };
    RetainPtr<CGFunctionRef> mainFunction = adoptCF(CGFunctionCreate(NULL, 1, NULL, 4, NULL, &mainCallbacks));
    RetainPtr<CGShadingRef> mainShading = adoptCF(CGShadingCreateAxial(cspace, CGPointMake(r.x(),  r.y()), CGPointMake(r.x(), r.maxY()), mainFunction.get(), false, false));

    RetainPtr<CGShadingRef> leftShading = adoptCF(CGShadingCreateAxial(cspace, CGPointMake(r.x(),  r.y()), CGPointMake(r.x() + radius, r.y()), mainFunction.get(), false, false));

    RetainPtr<CGShadingRef> rightShading = adoptCF(CGShadingCreateAxial(cspace, CGPointMake(r.maxX(),  r.y()), CGPointMake(r.maxX() - radius, r.y()), mainFunction.get(), false, false));
    paintInfo.context->save();
    CGContextClipToRect(context, r);
    paintInfo.context->clipRoundedRect(bound);
    CGContextDrawShading(context, mainShading.get());
    paintInfo.context->restore();

    paintInfo.context->save();
    CGContextClipToRect(context, topGradient);
    paintInfo.context->clipRoundedRect(FloatRoundedRect(enclosingIntRect(topGradient), bound.radii().topLeft(), bound.radii().topRight(), IntSize(), IntSize()));
    CGContextDrawShading(context, topShading.get());
    paintInfo.context->restore();

    if (!bottomGradient.isEmpty()) {
        paintInfo.context->save();
        CGContextClipToRect(context, bottomGradient);
        paintInfo.context->clipRoundedRect(FloatRoundedRect(enclosingIntRect(bottomGradient), IntSize(), IntSize(), bound.radii().bottomLeft(), bound.radii().bottomRight()));
        CGContextDrawShading(context, bottomShading.get());
        paintInfo.context->restore();
    }

    paintInfo.context->save();
    CGContextClipToRect(context, r);
    paintInfo.context->clipRoundedRect(bound);
    CGContextDrawShading(context, leftShading.get());
    CGContextDrawShading(context, rightShading.get());
    paintInfo.context->restore();

    paintInfo.context->restore();
}

PassOwnPtr<Shape> Shape::createLayoutBoxShape(const FloatRoundedRect& roundedRect, WritingMode writingMode, float margin)
{
    FloatRect rect(0, 0, roundedRect.rect().width(), roundedRect.rect().height());
    FloatRoundedRect bounds(rect, roundedRect.radii());
    OwnPtr<Shape> shape = createInsetShape(bounds);
    shape->m_writingMode = writingMode;
    shape->m_margin = margin;

    return shape.release();
}

TEST(FloatRoundedRectTest, zeroRadii)
{
    FloatRoundedRect r = FloatRoundedRect(1, 2, 3, 4);

    EXPECT_EQ(FloatRect(1, 2, 3, 4), r.rect());
    EXPECT_EQ(FloatSize(), r.radii().topLeft());
    EXPECT_EQ(FloatSize(), r.radii().topRight());
    EXPECT_EQ(FloatSize(), r.radii().bottomLeft());
    EXPECT_EQ(FloatSize(), r.radii().bottomRight());
    EXPECT_TRUE(r.radii().isZero());
    EXPECT_FALSE(r.isRounded());
    EXPECT_FALSE(r.isEmpty());

    EXPECT_EQ(FloatRect(1, 2, 0, 0), r.topLeftCorner());
    EXPECT_EQ(FloatRect(4, 2, 0, 0), r.topRightCorner());
    EXPECT_EQ(FloatRect(4, 6, 0, 0), r.bottomRightCorner());
    EXPECT_EQ(FloatRect(1, 6, 0, 0), r.bottomLeftCorner());

    TEST_INTERCEPTS(r, 2, r.rect().x(), r.rect().maxX());
    TEST_INTERCEPTS(r, 4, r.rect().x(), r.rect().maxX());
    TEST_INTERCEPTS(r, 6, r.rect().x(), r.rect().maxX());

    float minXIntercept;
    float maxXIntercept;

    EXPECT_FALSE(r.xInterceptsAtY(1, minXIntercept, maxXIntercept));
    EXPECT_FALSE(r.xInterceptsAtY(7, minXIntercept, maxXIntercept));

    // The FloatRoundedRect::expandRadii() function doesn't change radii FloatSizes that
    // are <= zero. Same as RoundedRect::expandRadii().
    r.expandRadii(20);
    r.shrinkRadii(10);
    EXPECT_TRUE(r.radii().isZero());
}

RoundedInnerRectClipper::RoundedInnerRectClipper(LayoutObject& layoutObject, const PaintInfo& paintInfo, const LayoutRect& rect, const FloatRoundedRect& clipRect, RoundedInnerRectClipperBehavior behavior)
    : m_layoutObject(layoutObject)
    , m_paintInfo(paintInfo)
    , m_useDisplayItemList(RuntimeEnabledFeatures::slimmingPaintEnabled() && behavior == ApplyToDisplayListIfEnabled)
    , m_clipType(m_useDisplayItemList ? m_paintInfo.displayItemTypeForClipping() : DisplayItem::ClipBoxPaintPhaseFirst)
{
    Vector<FloatRoundedRect> roundedRectClips;
    if (clipRect.isRenderable()) {
        roundedRectClips.append(clipRect);
    } else {
        // We create a rounded rect for each of the corners and clip it, while making sure we clip opposing corners together.
        if (!clipRect.radii().topLeft().isEmpty() || !clipRect.radii().bottomRight().isEmpty()) {
            FloatRect topCorner(clipRect.rect().x(), clipRect.rect().y(), rect.maxX() - clipRect.rect().x(), rect.maxY() - clipRect.rect().y());
            FloatRoundedRect::Radii topCornerRadii;
            topCornerRadii.setTopLeft(clipRect.radii().topLeft());
            roundedRectClips.append(FloatRoundedRect(topCorner, topCornerRadii));

            FloatRect bottomCorner(rect.x().toFloat(), rect.y().toFloat(), clipRect.rect().maxX() - rect.x().toFloat(), clipRect.rect().maxY() - rect.y().toFloat());
            FloatRoundedRect::Radii bottomCornerRadii;
            bottomCornerRadii.setBottomRight(clipRect.radii().bottomRight());
            roundedRectClips.append(FloatRoundedRect(bottomCorner, bottomCornerRadii));
        }

        if (!clipRect.radii().topRight().isEmpty() || !clipRect.radii().bottomLeft().isEmpty()) {
            FloatRect topCorner(rect.x().toFloat(), clipRect.rect().y(), clipRect.rect().maxX() - rect.x().toFloat(), rect.maxY() - clipRect.rect().y());
            FloatRoundedRect::Radii topCornerRadii;
            topCornerRadii.setTopRight(clipRect.radii().topRight());
            roundedRectClips.append(FloatRoundedRect(topCorner, topCornerRadii));

            FloatRect bottomCorner(clipRect.rect().x(), rect.y().toFloat(), rect.maxX() - clipRect.rect().x(), clipRect.rect().maxY() - rect.y().toFloat());
            FloatRoundedRect::Radii bottomCornerRadii;
            bottomCornerRadii.setBottomLeft(clipRect.radii().bottomLeft());
            roundedRectClips.append(FloatRoundedRect(bottomCorner, bottomCornerRadii));
        }
    }

    if (m_useDisplayItemList) {
        ASSERT(m_paintInfo.context->displayItemList());
        if (m_paintInfo.context->displayItemList()->displayItemConstructionIsDisabled())
            return;
        m_paintInfo.context->displayItemList()->createAndAppend<ClipDisplayItem>(layoutObject, m_clipType, LayoutRect::infiniteIntRect(), roundedRectClips);
    } else {
        ClipDisplayItem clipDisplayItem(layoutObject, m_clipType, LayoutRect::infiniteIntRect(), roundedRectClips);
        clipDisplayItem.replay(*paintInfo.context);
    }
}

void GraphicsContext::fillRectWithRoundedHole(const FloatRect& rect, const FloatRoundedRect& roundedHoleRect, const Color& color, ColorSpace)
{
    if (paintingDisabled() || !color.isValid())
        return;

    if (this->mustUseShadowBlur())
        platformContext()->shadowBlur().drawInsetShadow(this, rect, roundedHoleRect);

    Path path;
    path.addRect(rect);
    if (!roundedHoleRect.radii().isZero())
        path.addRoundedRect(roundedHoleRect);
    else
        path.addRect(roundedHoleRect.rect());

    cairo_t* cr = platformContext()->cr();
    cairo_save(cr);
    setPathOnCairoContext(platformContext()->cr(), path.platformPath()->context());
    fillCurrentCairoPath(this);
    cairo_restore(cr);
}

void PrintTo(const FloatRoundedRect& roundedRect, std::ostream* os)
{
    *os << "FloatRoundedRect("
        << ::testing::PrintToString(roundedRect.rect()) << ", "
        << ::testing::PrintToString(roundedRect.radii()) << ")";
}

void Path::addRoundedRect(const FloatRoundedRect& r)
{
    addRoundedRect(r.rect(), r.radii().topLeft(), r.radii().topRight(), r.radii().bottomLeft(), r.radii().bottomRight());
}