| /** |
| * 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 |
| |
| #if ENABLE(SVG) |
| #include "PaintInfo.h" |
| |
| namespace WebCore { |
| |
| class FloatPoint; |
| class FloatRect; |
| class ImageBuffer; |
| class RenderBoxModelObject; |
| class RenderObject; |
| class RenderStyle; |
| class RenderSVGRoot; |
| class TransformState; |
| |
| // SVGRendererSupport is a helper class sharing code between all SVG renderers. |
| class SVGRenderSupport { |
| public: |
| // Used by all SVG renderers who apply clip/filter/etc. resources to the renderer content |
| static bool prepareToRenderSVGContent(RenderObject*, PaintInfo&); |
| static void finishRenderSVGContent(RenderObject*, PaintInfo&, GraphicsContext* savedContext); |
| |
| // Shares child layouting code between RenderSVGRoot/RenderSVG(Hidden)Container |
| static void layoutChildren(RenderObject*, bool selfNeedsLayout); |
| |
| // Helper function determining wheter overflow is hidden |
| static bool isOverflowHidden(const RenderObject*); |
| |
| // Calculates the repaintRect in combination with filter, clipper and masker in local coordinates. |
| static void intersectRepaintRectWithResources(const RenderObject*, FloatRect&); |
| |
| // Determines whether the passed point lies in a clipping area |
| static bool pointInClippingArea(RenderObject*, const FloatPoint&); |
| |
| static void computeContainerBoundingBoxes(const RenderObject* container, FloatRect& objectBoundingBox, FloatRect& strokeBoundingBox, FloatRect& repaintBoundingBox); |
| static bool paintInfoIntersectsRepaintRect(const FloatRect& localRepaintRect, const AffineTransform& localTransform, const PaintInfo&); |
| |
| // Important functions used by nearly all SVG renderers centralizing coordinate transformations / repaint rect calculations |
| static IntRect clippedOverflowRectForRepaint(RenderObject*, RenderBoxModelObject* repaintContainer); |
| static void computeRectForRepaint(RenderObject*, RenderBoxModelObject* repaintContainer, IntRect&, bool fixed); |
| static void mapLocalToContainer(const RenderObject*, RenderBoxModelObject* repaintContainer, bool useTransforms, bool fixed, TransformState&); |
| |
| // Shared between SVG renderers and resources. |
| static void applyStrokeStyleToContext(GraphicsContext*, const RenderStyle*, const RenderObject*); |
| |
| // FIXME: These methods do not belong here. |
| static const RenderSVGRoot* findTreeRootObject(const RenderObject*); |
| |
| private: |
| // This class is not constructable. |
| SVGRenderSupport(); |
| ~SVGRenderSupport(); |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SVG) |
| #endif // SVGRenderSupport_h |