| /* |
| * Copyright (C) 2006 Apple Computer, Inc. |
| * |
| * 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 THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LAYOUT_SVG_BLOCK_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LAYOUT_SVG_BLOCK_H_ |
| |
| #include "third_party/blink/renderer/core/layout/layout_block_flow.h" |
| |
| namespace blink { |
| |
| class SVGElement; |
| |
| // A common class of SVG objects that delegate layout, paint, etc. tasks to |
| // LayoutBlockFlow. It has two coordinate spaces: |
| // - local SVG coordinate space: similar to LayoutSVGModelObject, the space |
| // that localSVGTransform() applies. |
| // - local HTML coordinate space: defined by frameRect() as if the local SVG |
| // coordinate space created a containing block. Like other LayoutBlockFlow |
| // objects, LayoutSVGBlock's frameRect() is also in physical coordinates with |
| // flipped blocks direction in the "containing block". |
| class LayoutSVGBlock : public LayoutBlockFlow { |
| public: |
| explicit LayoutSVGBlock(SVGElement*); |
| |
| // These mapping functions map coordinates in HTML spaces. |
| void MapLocalToAncestor(const LayoutBoxModelObject* ancestor, |
| TransformState&, |
| MapCoordinatesFlags) const final; |
| void MapAncestorToLocal(const LayoutBoxModelObject* ancestor, |
| TransformState&, |
| MapCoordinatesFlags) const final; |
| const LayoutObject* PushMappingToContainer( |
| const LayoutBoxModelObject* ancestor_to_stop_at, |
| LayoutGeometryMap&) const final; |
| |
| AffineTransform LocalSVGTransform() const final { |
| NOT_DESTROYED(); |
| return local_transform_; |
| } |
| void SetNeedsTransformUpdate() override { |
| NOT_DESTROYED(); |
| needs_transform_update_ = true; |
| } |
| |
| PaintLayerType LayerTypeRequired() const override { |
| NOT_DESTROYED(); |
| return kNoPaintLayer; |
| } |
| |
| SVGElement* GetElement() const; |
| |
| protected: |
| void WillBeDestroyed() override; |
| void InsertedIntoTree() override; |
| void WillBeRemovedFromTree() override; |
| |
| bool MapToVisualRectInAncestorSpaceInternal( |
| const LayoutBoxModelObject* ancestor, |
| TransformState&, |
| VisualRectFlags = kDefaultVisualRectFlags) const final; |
| |
| AffineTransform local_transform_; |
| bool needs_transform_update_ : 1; |
| bool transform_uses_reference_box_ : 1; |
| |
| bool IsOfType(LayoutObjectType type) const override { |
| NOT_DESTROYED(); |
| return type == kLayoutObjectSVG || LayoutBlockFlow::IsOfType(type); |
| } |
| |
| bool CheckForImplicitTransformChange(bool bbox_changed) const; |
| bool UpdateTransformAfterLayout(bool bounds_changed); |
| void StyleDidChange(StyleDifference, const ComputedStyle* old_style) override; |
| |
| private: |
| // LayoutSVGBlock subclasses should use GetElement() instead. |
| void GetNode() const = delete; |
| |
| PhysicalRect VisualRectInDocument(VisualRectFlags) const final; |
| |
| void UpdateFromStyle() final; |
| |
| bool NodeAtPoint(HitTestResult&, |
| const HitTestLocation&, |
| const PhysicalOffset& accumulated_offset, |
| HitTestAction) override; |
| }; |
| |
| } // namespace blink |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LAYOUT_SVG_BLOCK_H_ |