Moving RenderSVG* files from rendering/ to layout/

Source/core/rendering/svg/RenderSVGShape.cpp

-/*
- * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) 2004, 2005, 2008 Rob Buis <buis@kde.org>
- * Copyright (C) 2005, 2007 Eric Seidel <eric@webkit.org>
- * Copyright (C) 2009 Google, Inc.
- * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
- * Copyright (C) Research In Motion Limited 2010. All rights reserved.
- * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
- * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
- * Copyright (C) 2011 University of Szeged
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "core/rendering/svg/RenderSVGShape.h"
-
-#include "core/layout/HitTestRequest.h"
-#include "core/layout/PointerEventsHitRules.h"
-#include "core/layout/svg/SVGLayoutSupport.h"
-#include "core/layout/svg/SVGPathData.h"
-#include "core/layout/svg/SVGResources.h"
-#include "core/layout/svg/SVGResourcesCache.h"
-#include "core/paint/SVGShapePainter.h"
-#include "core/svg/SVGGraphicsElement.h"
-#include "platform/geometry/FloatPoint.h"
-#include "platform/graphics/StrokeData.h"
-#include "wtf/MathExtras.h"
-
-namespace blink {
-
-RenderSVGShape::RenderSVGShape(SVGGraphicsElement* node)
-    : RenderSVGModelObject(node)
-    , m_needsBoundariesUpdate(false) // Default is false, the cached rects are empty from the beginning.
-    , m_needsShapeUpdate(true) // Default is true, so we grab a Path object once from SVGGraphicsElement.
-    , m_needsTransformUpdate(true) // Default is true, so we grab a AffineTransform object once from SVGGraphicsElement.
-{
-}
-
-RenderSVGShape::~RenderSVGShape()
-{
-}
-
-void RenderSVGShape::createPath()
-{
-    clearPath();
-    m_path = adoptPtr(new Path);
-    ASSERT(RenderSVGShape::isShapeEmpty());
-
-    updatePathFromGraphicsElement(toSVGGraphicsElement(element()), path());
-    processMarkerPositions();
-}
-
-void RenderSVGShape::updateShapeFromElement()
-{
-    createPath();
-
-    m_fillBoundingBox = calculateObjectBoundingBox();
-    m_strokeBoundingBox = calculateStrokeBoundingBox();
-}
-
-bool RenderSVGShape::shapeDependentStrokeContains(const FloatPoint& point)
-{
-    ASSERT(m_path);
-    StrokeData strokeData;
-    SVGLayoutSupport::applyStrokeStyleToStrokeData(strokeData, styleRef(), *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);
-}
-
-bool RenderSVGShape::shapeDependentFillContains(const FloatPoint& point, const WindRule fillRule) const
-{
-    return path().contains(point, fillRule);
-}
-
-bool RenderSVGShape::fillContains(const FloatPoint& point, bool requiresFill, const WindRule fillRule)
-{
-    if (!m_fillBoundingBox.contains(point))
-        return false;
-
-    if (requiresFill && !SVGPaintServer::existsForRenderer(*this, styleRef(), ApplyToFillMode))
-        return false;
-
-    return shapeDependentFillContains(point, fillRule);
-}
-
-bool RenderSVGShape::strokeContains(const FloatPoint& point, bool requiresStroke)
-{
-    if (!strokeBoundingBox().contains(point))
-        return false;
-
-    if (requiresStroke && !SVGPaintServer::existsForRenderer(*this, styleRef(), ApplyToStrokeMode))
-        return false;
-
-    return shapeDependentStrokeContains(point);
-}
-
-void RenderSVGShape::updateLocalTransform()
-{
-    SVGGraphicsElement* graphicsElement = toSVGGraphicsElement(element());
-    if (graphicsElement->hasAnimatedLocalTransform()) {
-        if (m_localTransform)
-            m_localTransform->setTransform(graphicsElement->calculateAnimatedLocalTransform());
-        else
-            m_localTransform = adoptPtr(new AffineTransform(graphicsElement->calculateAnimatedLocalTransform()));
-    } else {
-        m_localTransform = 0;
-    }
-}
-
-void RenderSVGShape::layout()
-{
-    bool updateCachedBoundariesInParents = false;
-
-    if (m_needsShapeUpdate || m_needsBoundariesUpdate) {
-        updateShapeFromElement();
-        m_needsShapeUpdate = false;
-        updatePaintInvalidationBoundingBox();
-        m_needsBoundariesUpdate = false;
-        updateCachedBoundariesInParents = true;
-    }
-
-    if (m_needsTransformUpdate) {
-        updateLocalTransform();
-        m_needsTransformUpdate = false;
-        updateCachedBoundariesInParents = true;
-    }
-
-    // Invalidate all resources of this client if our layout changed.
-    if (everHadLayout() && selfNeedsLayout())
-        SVGResourcesCache::clientLayoutChanged(this);
-
-    // If our bounds changed, notify the parents.
-    if (updateCachedBoundariesInParents)
-        RenderSVGModelObject::setNeedsBoundariesUpdate();
-
-    clearNeedsLayout();
-}
-
-Path* RenderSVGShape::nonScalingStrokePath(const Path* path, const AffineTransform& strokeTransform) const
-{
-    DEFINE_STATIC_LOCAL(Path, tempPath, ());
-
-    tempPath = *path;
-    tempPath.transform(strokeTransform);
-
-    return &tempPath;
-}
-
-AffineTransform RenderSVGShape::nonScalingStrokeTransform() const
-{
-    return toSVGGraphicsElement(element())->getScreenCTM(SVGGraphicsElement::DisallowStyleUpdate);
-}
-
-void RenderSVGShape::paint(const PaintInfo& paintInfo, const LayoutPoint&)
-{
-    SVGShapePainter(*this).paint(paintInfo);
-}
-
-// This method is called from inside paintOutline() since we call paintOutline()
-// while transformed to our coord system, return local coords
-void RenderSVGShape::addFocusRingRects(Vector<LayoutRect>& rects, const LayoutPoint&) const
-{
-    LayoutRect rect = LayoutRect(paintInvalidationRectInLocalCoordinates());
-    if (!rect.isEmpty())
-        rects.append(rect);
-}
-
-bool RenderSVGShape::nodeAtFloatPoint(const HitTestRequest& request, HitTestResult& result, const FloatPoint& pointInParent, HitTestAction hitTestAction)
-{
-    // We only draw in the foreground phase, so we only hit-test then.
-    if (hitTestAction != HitTestForeground)
-        return false;
-
-    FloatPoint localPoint;
-    if (!SVGLayoutSupport::transformToUserSpaceAndCheckClipping(this, localToParentTransform(), pointInParent, localPoint))
-        return false;
-
-    PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_GEOMETRY_HITTESTING, request, style()->pointerEvents());
-    if (nodeAtFloatPointInternal(request, localPoint, hitRules)) {
-        updateHitTestResult(result, roundedLayoutPoint(localPoint));
-        return true;
-    }
-
-    return false;
-}
-
-bool RenderSVGShape::nodeAtFloatPointInternal(const HitTestRequest& request, const FloatPoint& localPoint, PointerEventsHitRules hitRules)
-{
-    bool isVisible = (style()->visibility() == VISIBLE);
-    if (isVisible || !hitRules.requireVisible) {
-        const SVGLayoutStyle& svgStyle = style()->svgStyle();
-        WindRule fillRule = svgStyle.fillRule();
-        if (request.svgClipContent())
-            fillRule = svgStyle.clipRule();
-        if ((hitRules.canHitBoundingBox && objectBoundingBox().contains(localPoint))
-            || (hitRules.canHitStroke && (svgStyle.hasStroke() || !hitRules.requireStroke) && strokeContains(localPoint, hitRules.requireStroke))
-            || (hitRules.canHitFill && (svgStyle.hasFill() || !hitRules.requireFill) && fillContains(localPoint, hitRules.requireFill, fillRule)))
-            return true;
-    }
-    return false;
-}
-
-FloatRect RenderSVGShape::calculateObjectBoundingBox() const
-{
-    return path().boundingRect();
-}
-
-FloatRect RenderSVGShape::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;
-}
-
-void RenderSVGShape::updatePaintInvalidationBoundingBox()
-{
-    m_paintInvalidationBoundingBox = strokeBoundingBox();
-    if (strokeWidth() < 1.0f && !m_paintInvalidationBoundingBox.isEmpty())
-        m_paintInvalidationBoundingBox.inflate(1);
-    SVGLayoutSupport::intersectPaintInvalidationRectWithResources(this, m_paintInvalidationBoundingBox);
-}
-
-float RenderSVGShape::strokeWidth() const
-{
-    SVGLengthContext lengthContext(element());
-    return style()->svgStyle().strokeWidth()->value(lengthContext);
-}
-
-}