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/*
* Copyright (C) 2006 Apple Computer, Inc.
* Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) Research In Motion Limited 2010-2012. 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 LayoutSVGText_h
#define LayoutSVGText_h
#include "core/layout/svg/LayoutSVGBlock.h"
#include "core/layout/svg/SVGTextLayoutAttributesBuilder.h"
#include "platform/transforms/AffineTransform.h"
namespace blink {
class LayoutSVGInlineText;
class SVGTextElement;
class LayoutSVGText final : public LayoutSVGBlock {
public:
explicit LayoutSVGText(SVGTextElement*);
~LayoutSVGText() override;
bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override;
void setNeedsPositioningValuesUpdate() { m_needsPositioningValuesUpdate = true; }
void setNeedsTransformUpdate() override { m_needsTransformUpdate = true; }
void setNeedsTextMetricsUpdate() { m_needsTextMetricsUpdate = true; }
FloatRect paintInvalidationRectInLocalSVGCoordinates() const override;
FloatRect objectBoundingBox() const override { return FloatRect(frameRect()); }
FloatRect strokeBoundingBox() const override;
bool isObjectBoundingBoxValid() const;
static LayoutSVGText* locateLayoutSVGTextAncestor(LayoutObject*);
static const LayoutSVGText* locateLayoutSVGTextAncestor(const LayoutObject*);
bool needsReordering() const { return m_needsReordering; }
Vector<SVGTextLayoutAttributes*>& layoutAttributes() { return m_layoutAttributes; }
void subtreeChildWasAdded(LayoutObject*);
void subtreeChildWillBeRemoved(LayoutObject*, Vector<SVGTextLayoutAttributes*, 2>& affectedAttributes);
void subtreeChildWasRemoved(const Vector<SVGTextLayoutAttributes*, 2>& affectedAttributes);
void subtreeTextDidChange(LayoutSVGInlineText*);
const AffineTransform& localToSVGParentTransform() const override { return m_localTransform; }
const char* name() const override { return "LayoutSVGText"; }
private:
bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGText || LayoutSVGBlock::isOfType(type); }
void paint(const PaintInfo&, const LayoutPoint&) const override;
bool nodeAtFloatPoint(HitTestResult&, const FloatPoint& pointInParent, HitTestAction) override;
PositionWithAffinity positionForPoint(const LayoutPoint&) override;
void layout() override;
void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override;
void addChild(LayoutObject* child, LayoutObject* beforeChild = nullptr) override;
void removeChild(LayoutObject*) override;
void willBeDestroyed() override;
void invalidateTreeIfNeeded(const PaintInvalidationState&) override;
RootInlineBox* createRootInlineBox() override;
bool shouldHandleSubtreeMutations() const;
bool m_needsReordering : 1;
bool m_needsPositioningValuesUpdate : 1;
bool m_needsTransformUpdate : 1;
bool m_needsTextMetricsUpdate : 1;
SVGTextLayoutAttributesBuilder m_layoutAttributesBuilder;
Vector<SVGTextLayoutAttributes*> m_layoutAttributes;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGText, isSVGText());
} // namespace blink
#endif
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