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C++ GraphicsLayer::syncPosition方法代码示例

本文整理汇总了C++中GraphicsLayer::syncPosition方法的典型用法代码示例。如果您正苦于以下问题：C++ GraphicsLayer::syncPosition方法的具体用法？C++ GraphicsLayer::syncPosition怎么用？C++ GraphicsLayer::syncPosition使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GraphicsLayer的用法示例。


在下文中一共展示了GraphicsLayer::syncPosition方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: updateMainFrameScrollPosition

void ScrollingCoordinator::updateMainFrameScrollPosition(const IntPoint& scrollPosition, bool programmaticScroll, SetOrSyncScrollingLayerPosition scrollingLayerPositionAction)
{
    ASSERT(isMainThread());

    if (!m_page)
        return;

    FrameView* frameView = m_page->mainFrame().view();
    if (!frameView)
        return;

    bool oldProgrammaticScroll = frameView->inProgrammaticScroll();
    frameView->setInProgrammaticScroll(programmaticScroll);

    frameView->setConstrainsScrollingToContentEdge(false);
    frameView->notifyScrollPositionChanged(scrollPosition);
    frameView->setConstrainsScrollingToContentEdge(true);

    frameView->setInProgrammaticScroll(oldProgrammaticScroll);

#if USE(ACCELERATED_COMPOSITING)
    if (GraphicsLayer* scrollLayer = scrollLayerForFrameView(frameView)) {
        GraphicsLayer* counterScrollingLayer = counterScrollingLayerForFrameView(frameView);
        GraphicsLayer* headerLayer = headerLayerForFrameView(frameView);
        GraphicsLayer* footerLayer = footerLayerForFrameView(frameView);
        IntSize scrollOffsetForFixed = frameView->scrollOffsetForFixedPosition();

        if (programmaticScroll || scrollingLayerPositionAction == SetScrollingLayerPosition) {
            scrollLayer->setPosition(-frameView->scrollPosition());
            if (counterScrollingLayer)
                counterScrollingLayer->setPosition(IntPoint(scrollOffsetForFixed));
            if (headerLayer)
                headerLayer->setPosition(FloatPoint(scrollOffsetForFixed.width(), 0));
            if (footerLayer)
                footerLayer->setPosition(FloatPoint(scrollOffsetForFixed.width(), frameView->totalContentsSize().height() - frameView->footerHeight()));
        } else {
            scrollLayer->syncPosition(-frameView->scrollPosition());
            if (counterScrollingLayer)
                counterScrollingLayer->syncPosition(IntPoint(scrollOffsetForFixed));
            if (headerLayer)
                headerLayer->syncPosition(FloatPoint(scrollOffsetForFixed.width(), 0));
            if (footerLayer)
                footerLayer->syncPosition(FloatPoint(scrollOffsetForFixed.width(), frameView->totalContentsSize().height() - frameView->footerHeight()));

            LayoutRect viewportRect = frameView->viewportConstrainedVisibleContentRect();
            syncChildPositions(viewportRect);
        }
    }
#else
    UNUSED_PARAM(scrollingLayerPositionAction);
#endif
}
开发者ID:highweb-project，项目名称:qplusweb，代码行数:52，代码来源:ScrollingCoordinator.cpp

示例2: updateScrollPositionAfterAsyncScroll

void AsyncScrollingCoordinator::updateScrollPositionAfterAsyncScroll(ScrollingNodeID scrollingNodeID, const FloatPoint& scrollPosition, bool programmaticScroll, SetOrSyncScrollingLayerPosition scrollingLayerPositionAction)
{
    ASSERT(isMainThread());

    if (!m_page)
        return;

    FrameView* frameView = m_page->mainFrame().view();
    if (!frameView)
        return;

    bool oldProgrammaticScroll = frameView->inProgrammaticScroll();
    frameView->setInProgrammaticScroll(programmaticScroll);

    frameView->setConstrainsScrollingToContentEdge(false);
    frameView->notifyScrollPositionChanged(roundedIntPoint(scrollPosition));
    frameView->setConstrainsScrollingToContentEdge(true);

    frameView->setInProgrammaticScroll(oldProgrammaticScroll);

    if (scrollingNodeID == frameView->scrollLayerID()) {
        if (GraphicsLayer* scrollLayer = scrollLayerForFrameView(frameView)) {
            GraphicsLayer* counterScrollingLayer = counterScrollingLayerForFrameView(frameView);
            GraphicsLayer* headerLayer = headerLayerForFrameView(frameView);
            GraphicsLayer* footerLayer = footerLayerForFrameView(frameView);
            IntSize scrollOffsetForFixed = frameView->scrollOffsetForFixedPosition();

            if (programmaticScroll || scrollingLayerPositionAction == SetScrollingLayerPosition) {
                scrollLayer->setPosition(-frameView->scrollPosition());
                if (counterScrollingLayer)
                    counterScrollingLayer->setPosition(IntPoint(scrollOffsetForFixed));
                if (headerLayer)
                    headerLayer->setPosition(FloatPoint(scrollOffsetForFixed.width(), 0));
                if (footerLayer)
                    footerLayer->setPosition(FloatPoint(scrollOffsetForFixed.width(), frameView->totalContentsSize().height() - frameView->footerHeight()));
            } else {
                scrollLayer->syncPosition(-frameView->scrollPosition());
                if (counterScrollingLayer)
                    counterScrollingLayer->syncPosition(IntPoint(scrollOffsetForFixed));
                if (headerLayer)
                    headerLayer->syncPosition(FloatPoint(scrollOffsetForFixed.width(), 0));
                if (footerLayer)
                    footerLayer->syncPosition(FloatPoint(scrollOffsetForFixed.width(), frameView->totalContentsSize().height() - frameView->footerHeight()));

                LayoutRect viewportRect = frameView->viewportConstrainedVisibleContentRect();
                syncChildPositions(viewportRect);
            }
        }
    }
    // FIXME: handle non-main scrolling nodes.
}
开发者ID:，项目名称:，代码行数:51，代码来源:

示例3: reconcileLayerPositionForViewportRect

void ScrollingStateFixedNode::reconcileLayerPositionForViewportRect(const LayoutRect& viewportRect, ScrollingLayerPositionAction action)
{
    FloatPoint position = m_constraints.layerPositionForViewportRect(viewportRect);
    if (layer().representsGraphicsLayer()) {
        GraphicsLayer* graphicsLayer = static_cast<GraphicsLayer*>(layer());

        LOG_WITH_STREAM(Compositing, stream << "ScrollingStateFixedNode::reconcileLayerPositionForViewportRect setting position of layer " << graphicsLayer->primaryLayerID() << " to " << position);
        
        switch (action) {
        case ScrollingLayerPositionAction::Set:
            graphicsLayer->setPosition(position);
            break;

        case ScrollingLayerPositionAction::SetApproximate:
            graphicsLayer->setApproximatePosition(position);
            break;
        
        case ScrollingLayerPositionAction::Sync:
            graphicsLayer->syncPosition(position);
            break;
        }
    }
}
开发者ID:eocanha，项目名称:webkit，代码行数:23，代码来源:ScrollingStateFixedNode.cpp

示例4: updateScrollPositionAfterAsyncScroll

void AsyncScrollingCoordinator::updateScrollPositionAfterAsyncScroll(ScrollingNodeID scrollingNodeID, const FloatPoint& scrollPosition, bool programmaticScroll, SetOrSyncScrollingLayerPosition scrollingLayerPositionAction)
{
    ASSERT(isMainThread());

    if (!m_page)
        return;

    FrameView* frameViewPtr = frameViewForScrollingNode(scrollingNodeID);
    if (!frameViewPtr)
        return;

    FrameView& frameView = *frameViewPtr;

    if (scrollingNodeID == frameView.scrollLayerID()) {
        bool oldProgrammaticScroll = frameView.inProgrammaticScroll();
        frameView.setInProgrammaticScroll(programmaticScroll);

        frameView.setConstrainsScrollingToContentEdge(false);
        frameView.notifyScrollPositionChanged(roundedIntPoint(scrollPosition));
        frameView.setConstrainsScrollingToContentEdge(true);

        frameView.setInProgrammaticScroll(oldProgrammaticScroll);

        if (GraphicsLayer* scrollLayer = scrollLayerForFrameView(frameView)) {
            GraphicsLayer* counterScrollingLayer = counterScrollingLayerForFrameView(frameView);
            GraphicsLayer* insetClipLayer = insetClipLayerForFrameView(frameView);
            GraphicsLayer* contentShadowLayer = contentShadowLayerForFrameView(frameView);
            GraphicsLayer* scrolledContentsLayer = rootContentLayerForFrameView(frameView);
            GraphicsLayer* headerLayer = headerLayerForFrameView(frameView);
            GraphicsLayer* footerLayer = footerLayerForFrameView(frameView);
            LayoutPoint scrollPositionForFixed = frameView.scrollPositionForFixedPosition();

            float topContentInset = frameView.topContentInset();
            FloatPoint positionForInsetClipLayer = FloatPoint(0, FrameView::yPositionForInsetClipLayer(scrollPosition, topContentInset));
            FloatPoint positionForContentsLayer = frameView.positionForRootContentLayer();
            FloatPoint positionForHeaderLayer = FloatPoint(scrollPositionForFixed.x(), FrameView::yPositionForHeaderLayer(scrollPosition, topContentInset));
            FloatPoint positionForFooterLayer = FloatPoint(scrollPositionForFixed.x(),
                FrameView::yPositionForFooterLayer(scrollPosition, topContentInset, frameView.totalContentsSize().height(), frameView.footerHeight()));

            if (programmaticScroll || scrollingLayerPositionAction == SetScrollingLayerPosition) {
                scrollLayer->setPosition(-frameView.scrollPosition());
                if (counterScrollingLayer)
                    counterScrollingLayer->setPosition(scrollPositionForFixed);
                if (insetClipLayer)
                    insetClipLayer->setPosition(positionForInsetClipLayer);
                if (contentShadowLayer)
                    contentShadowLayer->setPosition(positionForContentsLayer);
                if (scrolledContentsLayer)
                    scrolledContentsLayer->setPosition(positionForContentsLayer);
                if (headerLayer)
                    headerLayer->setPosition(positionForHeaderLayer);
                if (footerLayer)
                    footerLayer->setPosition(positionForFooterLayer);
            } else {
                scrollLayer->syncPosition(-frameView.scrollPosition());
                if (counterScrollingLayer)
                    counterScrollingLayer->syncPosition(scrollPositionForFixed);
                if (insetClipLayer)
                    insetClipLayer->syncPosition(positionForInsetClipLayer);
                if (contentShadowLayer)
                    contentShadowLayer->syncPosition(positionForContentsLayer);
                if (scrolledContentsLayer)
                    scrolledContentsLayer->syncPosition(positionForContentsLayer);
                if (headerLayer)
                    headerLayer->syncPosition(positionForHeaderLayer);
                if (footerLayer)
                    footerLayer->syncPosition(positionForFooterLayer);

                LayoutRect viewportRect = frameView.viewportConstrainedVisibleContentRect();
                syncChildPositions(viewportRect);
            }
        }

#if PLATFORM(COCOA)
        if (m_page->expectsWheelEventTriggers()) {
            frameView.scrollAnimator().setWheelEventTestTrigger(m_page->testTrigger());
            if (const auto& trigger = m_page->testTrigger())
                trigger->removeTestDeferralForReason(reinterpret_cast<WheelEventTestTrigger::ScrollableAreaIdentifier>(scrollingNodeID), WheelEventTestTrigger::ScrollingThreadSyncNeeded);
        }
#endif
        
        return;
    }

    // Overflow-scroll area.
    if (ScrollableArea* scrollableArea = frameView.scrollableAreaForScrollLayerID(scrollingNodeID)) {
        scrollableArea->setIsUserScroll(scrollingLayerPositionAction == SyncScrollingLayerPosition);
        scrollableArea->scrollToOffsetWithoutAnimation(scrollPosition);
        scrollableArea->setIsUserScroll(false);
        if (scrollingLayerPositionAction == SetScrollingLayerPosition)
            m_page->editorClient().overflowScrollPositionChanged();

#if PLATFORM(COCOA)
        if (m_page->expectsWheelEventTriggers()) {
            frameView.scrollAnimator().setWheelEventTestTrigger(m_page->testTrigger());
            if (const auto& trigger = m_page->testTrigger())
                trigger->removeTestDeferralForReason(reinterpret_cast<WheelEventTestTrigger::ScrollableAreaIdentifier>(scrollingNodeID), WheelEventTestTrigger::ScrollingThreadSyncNeeded);
        }
#endif
    }
//.........这里部分代码省略.........
开发者ID:jeff-jenness，项目名称:webkit，代码行数:101，代码来源:AsyncScrollingCoordinator.cpp

示例5: updateScrollPositionAfterAsyncScroll

void AsyncScrollingCoordinator::updateScrollPositionAfterAsyncScroll(ScrollingNodeID scrollingNodeID, const FloatPoint& scrollPosition, bool programmaticScroll, SetOrSyncScrollingLayerPosition scrollingLayerPositionAction)
{
    ASSERT(isMainThread());

    if (!m_page)
        return;

    FrameView* frameView = m_page->mainFrame().view();
    if (!frameView)
        return;

    // Main frame.
    if (scrollingNodeID == frameView->scrollLayerID()) {
        bool oldProgrammaticScroll = frameView->inProgrammaticScroll();
        frameView->setInProgrammaticScroll(programmaticScroll);

        frameView->setConstrainsScrollingToContentEdge(false);
        frameView->notifyScrollPositionChanged(roundedIntPoint(scrollPosition));
        frameView->setConstrainsScrollingToContentEdge(true);

        frameView->setInProgrammaticScroll(oldProgrammaticScroll);

        if (GraphicsLayer* scrollLayer = scrollLayerForFrameView(frameView)) {
            GraphicsLayer* counterScrollingLayer = counterScrollingLayerForFrameView(frameView);
            GraphicsLayer* insetClipLayer = insetClipLayerForFrameView(frameView);
            GraphicsLayer* contentShadowLayer = contentShadowLayerForFrameView(frameView);
            GraphicsLayer* scrolledContentsLayer = rootContentLayerForFrameView(frameView);
            GraphicsLayer* headerLayer = headerLayerForFrameView(frameView);
            GraphicsLayer* footerLayer = footerLayerForFrameView(frameView);
            LayoutSize scrollOffsetForFixed = frameView->scrollOffsetForFixedPosition();

            float topContentInset = frameView->topContentInset();
            FloatPoint positionForInsetClipLayer = FloatPoint(0, FrameView::yPositionForInsetClipLayer(scrollPosition, topContentInset));
            FloatPoint positionForContentsLayer = FloatPoint(scrolledContentsLayer->position().x(),
                FrameView::yPositionForRootContentLayer(scrollPosition, topContentInset, frameView->headerHeight()));
            FloatPoint positionForHeaderLayer = FloatPoint(scrollOffsetForFixed.width(), FrameView::yPositionForHeaderLayer(scrollPosition, topContentInset));
            FloatPoint positionForFooterLayer = FloatPoint(scrollOffsetForFixed.width(),
                FrameView::yPositionForFooterLayer(scrollPosition, topContentInset, frameView->totalContentsSize().height(), frameView->footerHeight()));

            if (programmaticScroll || scrollingLayerPositionAction == SetScrollingLayerPosition) {
                scrollLayer->setPosition(-frameView->scrollPosition());
                if (counterScrollingLayer)
                    counterScrollingLayer->setPosition(toLayoutPoint(scrollOffsetForFixed));
                if (insetClipLayer)
                    insetClipLayer->setPosition(positionForInsetClipLayer);
                if (contentShadowLayer)
                    contentShadowLayer->setPosition(positionForContentsLayer);
                if (scrolledContentsLayer)
                    scrolledContentsLayer->setPosition(positionForContentsLayer);
                if (headerLayer)
                    headerLayer->setPosition(positionForHeaderLayer);
                if (footerLayer)
                    footerLayer->setPosition(positionForFooterLayer);
            } else {
                scrollLayer->syncPosition(-frameView->scrollPosition());
                if (counterScrollingLayer)
                    counterScrollingLayer->syncPosition(toLayoutPoint(scrollOffsetForFixed));
                if (insetClipLayer)
                    insetClipLayer->syncPosition(positionForInsetClipLayer);
                if (contentShadowLayer)
                    contentShadowLayer->syncPosition(positionForContentsLayer);
                if (scrolledContentsLayer)
                    scrolledContentsLayer->syncPosition(positionForContentsLayer);
                if (headerLayer)
                    headerLayer->syncPosition(positionForHeaderLayer);
                if (footerLayer)
                    footerLayer->syncPosition(positionForFooterLayer);

                LayoutRect viewportRect = frameView->viewportConstrainedVisibleContentRect();
                syncChildPositions(viewportRect);
            }
        }

        return;
    }

    // Overflow-scroll area.
    if (ScrollableArea* scrollableArea = frameView->scrollableAreaForScrollLayerID(scrollingNodeID)) {
        scrollableArea->setIsUserScroll(scrollingLayerPositionAction == SyncScrollingLayerPosition);
        scrollableArea->scrollToOffsetWithoutAnimation(scrollPosition);
        scrollableArea->setIsUserScroll(false);
    }
}
开发者ID:Wrichik1999，项目名称:webkit，代码行数:83，代码来源:AsyncScrollingCoordinator.cpp


注：本文中的GraphicsLayer::syncPosition方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。