/** * Copyright (C) 2007 Rob Buis <buis@kde.org> * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> * Copyright (C) 2007 Eric Seidel <eric@webkit.org> * Copyright (C) 2009 Google, Inc. All rights reserved. * Copyright (C) Research In Motion Limited 2010. All rights reserved. * * 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. */ #ifndef SVGRenderSupport_h #define SVGRenderSupport_h #include "core/rendering/PaintInfo.h" namespace WebCore { class FloatPoint; class FloatRect; class ImageBuffer; class LayoutRect; class RenderBoxModelObject; class RenderGeometryMap; class RenderLayerModelObject; class RenderObject; class RenderStyle; class RenderSVGRoot; class TransformState; namespace SVGRenderSupport { // Shares child layouting code between RenderSVGRoot/RenderSVG(Hidden)Container void layoutChildren(RenderObject*, bool selfNeedsLayout); // Layout resources used by this node. void layoutResourcesIfNeeded(const RenderObject*); // Helper function determining wheter overflow is hidden bool isOverflowHidden(const RenderObject*); // Calculates the repaintRect in combination with filter, clipper and masker in local coordinates. void intersectRepaintRectWithResources(const RenderObject*, FloatRect&); // Determines whether a container needs to be laid out because it's filtered and a child is being laid out. bool filtersForceContainerLayout(RenderObject*); // Determines whether the passed point lies in a clipping area bool pointInClippingArea(RenderObject*, const FloatPoint&); void computeContainerBoundingBoxes(const RenderObject* container, FloatRect& objectBoundingBox, bool& objectBoundingBoxValid, FloatRect& strokeBoundingBox, FloatRect& repaintBoundingBox); bool paintInfoIntersectsRepaintRect(const FloatRect& localRepaintRect, const AffineTransform& localTransform, const PaintInfo&); // Important functions used by nearly all SVG renderers centralizing coordinate transformations / repaint rect calculations LayoutRect clippedOverflowRectForRepaint(const RenderObject*, const RenderLayerModelObject* repaintContainer); void computeFloatRectForRepaint(const RenderObject*, const RenderLayerModelObject* repaintContainer, FloatRect&, bool fixed); void mapLocalToContainer(const RenderObject*, const RenderLayerModelObject* repaintContainer, TransformState&, bool* wasFixed = 0); const RenderObject* pushMappingToContainer(const RenderObject*, const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&); bool checkForSVGRepaintDuringLayout(RenderObject*); // Shared between SVG renderers and resources. void applyStrokeStyleToContext(GraphicsContext*, const RenderStyle*, const RenderObject*); void applyStrokeStyleToStrokeData(StrokeData*, const RenderStyle*, const RenderObject*); // Determines if any ancestor's transform has changed. bool transformToRootChanged(RenderObject*); // FIXME: These methods do not belong here. const RenderSVGRoot* findTreeRootObject(const RenderObject*); // Helper method for determining if a RenderObject marked as text (isText()== true) // can/will be rendered as part of a <text>. bool isRenderableTextNode(const RenderObject*); } // namespace SVGRenderSupport } // namespace WebCore #endif // SVGRenderSupport_h