C++ FloatPoint::moveBy方法代码示例

void EllipsisBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
    GraphicsContext* context = paintInfo.context;
    RenderStyle* style = renderer().style(isFirstLineStyle());
    const Font& font = style->font();
    FloatPoint boxOrigin = locationIncludingFlipping();
    boxOrigin.moveBy(FloatPoint(paintOffset));
    if (!isHorizontal())
        boxOrigin.move(0, -virtualLogicalHeight());
    FloatRect boxRect(boxOrigin, LayoutSize(logicalWidth(), virtualLogicalHeight()));
    GraphicsContextStateSaver stateSaver(*context);
    if (!isHorizontal())
        context->concatCTM(InlineTextBox::rotation(boxRect, InlineTextBox::Clockwise));
    FloatPoint textOrigin(boxOrigin.x(), boxOrigin.y() + font.fontMetrics().ascent());

    bool isPrinting = renderer().document().printing();
    bool haveSelection = !isPrinting && paintInfo.phase != PaintPhaseTextClip && selectionState() != RenderObject::SelectionNone;

    if (haveSelection)
        paintSelection(context, boxOrigin, style, font);
    else if (paintInfo.phase == PaintPhaseSelection)
        return;

    TextPainter::Style textStyle = TextPainter::textPaintingStyle(renderer(), style, paintInfo.forceBlackText(), isPrinting);
    if (haveSelection)
        textStyle = TextPainter::selectionPaintingStyle(renderer(), true, paintInfo.forceBlackText(), isPrinting, textStyle);

    TextRun textRun = constructTextRun(&renderer(), font, m_str, style, TextRun::AllowTrailingExpansion);
    TextPainter textPainter(context, font, textRun, textOrigin, boxRect, isHorizontal());
    textPainter.paint(0, m_str.length(), m_str.length(), textStyle);

    paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style);
}

FloatPoint VisualViewport::rootFrameToViewport(const FloatPoint& pointInRootFrame) const
{
    FloatPoint pointInViewport = pointInRootFrame;
    pointInViewport.moveBy(-location());
    pointInViewport.scale(scale(), scale());
    return pointInViewport;
}

bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
    LayoutPoint adjustedLocation = accumulatedOffset + roundedLayoutPoint(topLeft());

    // Hit test the markup box.
    if (InlineBox* markupBox = this->markupBox()) {
        RenderStyle* style = renderer().style(isFirstLineStyle());
        LayoutUnit mtx = adjustedLocation.x() + m_logicalWidth - markupBox->x();
        LayoutUnit mty = adjustedLocation.y() + style->fontMetrics().ascent() - (markupBox->y() + markupBox->renderer().style(isFirstLineStyle())->fontMetrics().ascent());
        if (markupBox->nodeAtPoint(request, result, locationInContainer, LayoutPoint(mtx, mty), lineTop, lineBottom)) {
            renderer().updateHitTestResult(result, locationInContainer.point() - LayoutSize(mtx, mty));
            return true;
        }
    }

    FloatPoint boxOrigin = locationIncludingFlipping();
    boxOrigin.moveBy(accumulatedOffset);
    FloatRect boundsRect(boxOrigin, size());
    if (visibleToHitTestRequest(request) && boundsRect.intersects(HitTestLocation::rectForPoint(locationInContainer.point(), 0, 0, 0, 0))) {
        renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
        if (!result.addNodeToRectBasedTestResult(renderer().node(), request, locationInContainer, boundsRect))
            return true;
    }

    return false;
}

FloatPoint VisualViewport::viewportCSSPixelsToRootFrame(const FloatPoint& point) const
{
    // Note, this is in CSS Pixels so we don't apply scale.
    FloatPoint pointInRootFrame = point;
    pointInRootFrame.moveBy(location());
    return pointInRootFrame;
}

FloatPoint VisualViewport::viewportToRootFrame(const FloatPoint& pointInViewport) const
{
    FloatPoint pointInRootFrame = pointInViewport;
    pointInRootFrame.scale(1 / scale(), 1 / scale());
    pointInRootFrame.moveBy(location());
    return pointInRootFrame;
}

void EllipsisBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
    GraphicsContext* context = paintInfo.context;
    RenderStyle* style = renderer().style(isFirstLineStyle());

    const Font& font = style->font();
    FloatPoint boxOrigin = locationIncludingFlipping();
    boxOrigin.moveBy(FloatPoint(paintOffset));
    if (!isHorizontal())
        boxOrigin.move(0, -virtualLogicalHeight());
    FloatRect boxRect(boxOrigin, LayoutSize(logicalWidth(), virtualLogicalHeight()));
    GraphicsContextStateSaver stateSaver(*context);
    if (!isHorizontal())
        context->concatCTM(InlineTextBox::rotation(boxRect, InlineTextBox::Clockwise));
    FloatPoint textOrigin = FloatPoint(boxOrigin.x(), boxOrigin.y() + font.fontMetrics().ascent());

    Color styleTextColor = renderer().resolveColor(style, CSSPropertyWebkitTextFillColor);
    if (styleTextColor != context->fillColor())
        context->setFillColor(styleTextColor);

    if (selectionState() != RenderObject::SelectionNone) {
        paintSelection(context, boxOrigin, style, font);

        // Select the correct color for painting the text.
        Color foreground = paintInfo.forceBlackText() ? Color::black : renderer().selectionForegroundColor();
        if (foreground != styleTextColor)
            context->setFillColor(foreground);
    }

    // Text shadows are disabled when printing. http://crbug.com/258321
    const ShadowList* shadowList = context->printing() ? 0 : style->textShadow();
    bool hasShadow = shadowList;
    if (hasShadow) {
        OwnPtr<DrawLooperBuilder> drawLooperBuilder = DrawLooperBuilder::create();
        for (size_t i = shadowList->shadows().size(); i--; ) {
            const ShadowData& shadow = shadowList->shadows()[i];
            float shadowX = isHorizontal() ? shadow.x() : shadow.y();
            float shadowY = isHorizontal() ? shadow.y() : -shadow.x();
            FloatSize offset(shadowX, shadowY);
            drawLooperBuilder->addShadow(offset, shadow.blur(), shadow.color(),
                DrawLooperBuilder::ShadowRespectsTransforms, DrawLooperBuilder::ShadowIgnoresAlpha);
        }
        drawLooperBuilder->addUnmodifiedContent();
        context->setDrawLooper(drawLooperBuilder.release());
    }

    TextRun textRun = RenderBlockFlow::constructTextRun(&renderer(), font, m_str, style, TextRun::AllowTrailingExpansion);
    TextRunPaintInfo textRunPaintInfo(textRun);
    textRunPaintInfo.bounds = boxRect;
    context->drawText(font, textRunPaintInfo, textOrigin);

    // Restore the regular fill color.
    if (styleTextColor != context->fillColor())
        context->setFillColor(styleTextColor);

    if (hasShadow)
        context->clearDrawLooper();

    paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style);
}

ScrollResultOneDimensional ScrollAnimator::userScroll(
    ScrollbarOrientation orientation, ScrollGranularity granularity, float step, float delta)
{
    if (!m_scrollableArea->scrollAnimatorEnabled())
        return ScrollAnimatorBase::userScroll(orientation, granularity, step, delta);

    TRACE_EVENT0("blink", "ScrollAnimator::scroll");

    if (granularity == ScrollByPrecisePixel)
        return ScrollAnimatorBase::userScroll(orientation, granularity, step, delta);

    float usedPixelDelta = computeDeltaToConsume(orientation, step * delta);
    FloatPoint pixelDelta = (orientation == VerticalScrollbar
        ? FloatPoint(0, usedPixelDelta) : FloatPoint(usedPixelDelta, 0));

    FloatPoint targetPos = desiredTargetPosition();
    targetPos.moveBy(pixelDelta);

    if (m_animationCurve) {
        if ((targetPos - m_targetOffset).isZero()) {
            // Report unused delta only if there is no animation running. See
            // comment below regarding scroll latching.
            return ScrollResultOneDimensional(/* didScroll */ true, /* unusedScrollDelta */ 0);
        }

        m_targetOffset = targetPos;
        ASSERT(m_runState == RunState::RunningOnMainThread
            || m_runState == RunState::RunningOnCompositor
            || m_runState == RunState::RunningOnCompositorButNeedsUpdate);

        if (m_runState == RunState::RunningOnCompositor
            || m_runState == RunState::RunningOnCompositorButNeedsUpdate) {
            if (registerAndScheduleAnimation())
                m_runState = RunState::RunningOnCompositorButNeedsUpdate;
            return ScrollResultOneDimensional(/* didScroll */ true, /* unusedScrollDelta */ 0);
        }

        // Running on the main thread, simply update the target offset instead
        // of sending to the compositor.
        m_animationCurve->updateTarget(m_timeFunction() - m_startTime, targetPos);
        return ScrollResultOneDimensional(/* didScroll */ true, /* unusedScrollDelta */ 0);
    }

    if ((targetPos - currentPosition()).isZero()) {
        // Report unused delta only if there is no animation and we are not
        // starting one. This ensures we latch for the duration of the
        // animation rather than animating multiple scrollers at the same time.
        return ScrollResultOneDimensional(/* didScroll */ false, delta);
    }

    m_targetOffset = targetPos;
    m_startTime = m_timeFunction();

    if (registerAndScheduleAnimation())
        m_runState = RunState::WaitingToSendToCompositor;

    return ScrollResultOneDimensional(/* didScroll */ true, /* unusedScrollDelta */ 0);
}

void EllipsisBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
    GraphicsContext* context = paintInfo.context;
    RenderStyle* style = renderer().style(isFirstLineStyle());

    const Font& font = style->font();
    FloatPoint boxOrigin = locationIncludingFlipping();
    boxOrigin.moveBy(FloatPoint(paintOffset));
    FloatRect boxRect(boxOrigin, LayoutSize(logicalWidth(), virtualLogicalHeight()));
    GraphicsContextStateSaver stateSaver(*context);
    FloatPoint textOrigin = FloatPoint(boxOrigin.x(), boxOrigin.y() + font.fontMetrics().ascent());

    Color styleTextColor = renderer().resolveColor(style, CSSPropertyWebkitTextFillColor);
    if (styleTextColor != context->fillColor())
        context->setFillColor(styleTextColor);

    if (selectionState() != RenderObject::SelectionNone) {
        paintSelection(context, boxOrigin, style, font);

        // Select the correct color for painting the text.
        Color foreground = paintInfo.forceBlackText() ? Color::black : renderer().selectionForegroundColor();
        if (foreground != styleTextColor)
            context->setFillColor(foreground);
    }

    const ShadowList* shadowList = style->textShadow();
    bool hasShadow = shadowList;
    if (hasShadow)
        context->setDrawLooper(shadowList->createDrawLooper(DrawLooperBuilder::ShadowIgnoresAlpha));

    TextRun textRun = constructTextRun(&renderer(), font, m_str, style, TextRun::AllowTrailingExpansion);
    TextRunPaintInfo textRunPaintInfo(textRun);
    textRunPaintInfo.bounds = boxRect;
    context->drawText(font, textRunPaintInfo, textOrigin);

    // Restore the regular fill color.
    if (styleTextColor != context->fillColor())
        context->setFillColor(styleTextColor);

    if (hasShadow)
        context->clearDrawLooper();

    paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style);
}

FloatPoint ScrollAnimatorCompositorCoordinator::blinkOffsetFromCompositorOffset(FloatPoint offset)
{
    offset.moveBy(-scrollableArea()->scrollOrigin());
    return offset;
}