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/*
* Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
* Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2008 Rob Buis <buis@kde.org>
*
* 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.
*/
#pragma once
#include "FontCascade.h"
#include "RenderText.h"
#include "SVGTextLayoutAttributes.h"
#include "Text.h"
namespace WebCore {
class SVGInlineTextBox;
class RenderSVGInlineText final : public RenderText {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(RenderSVGInlineText);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RenderSVGInlineText);
public:
RenderSVGInlineText(Text&, const String&);
virtual ~RenderSVGInlineText();
Text& textNode() const { return downcast<Text>(nodeForNonAnonymous()); }
bool characterStartsNewTextChunk(int position) const;
SVGTextLayoutAttributes* layoutAttributes() { return &m_layoutAttributes; }
const SVGTextLayoutAttributes* layoutAttributes() const { return &m_layoutAttributes; }
// computeScalingFactor() returns the font-size scaling factor, ignoring the text-rendering mode.
// scalingFactor() takes it into account, and thus returns 1 whenever text-rendering is set to 'geometricPrecision'.
// Therefore if you need access to the vanilla scaling factor, use this method directly (e.g. for non-scaling-stroke).
static float computeScalingFactorForRenderer(const RenderObject&);
float scalingFactor() const { return m_scalingFactor; }
const FontCascade& scaledFont() const { return m_scaledFont; }
void updateScaledFont();
static bool computeNewScaledFontForStyle(const RenderObject&, const RenderStyle&, float& scalingFactor, FontCascade& scaledFont);
// Preserves floating point precision for the use in DRT. It knows how to round and does a better job than enclosingIntRect.
FloatRect floatLinesBoundingBox() const;
void removeTextBox(LegacyInlineTextBox& box) { m_legacyLineBoxes.remove(box); }
LegacyInlineTextBox* createInlineTextBox() { return m_legacyLineBoxes.createAndAppendLineBox(*this); }
void deleteLegacyLineBoxes();
LegacyInlineTextBox* firstLegacyTextBox() const { return m_legacyLineBoxes.first(); }
void removeAndDestroyLegacyTextBoxes();
std::unique_ptr<LegacyInlineTextBox> createTextBox();
private:
void willBeDestroyed() final;
ASCIILiteral renderName() const override { return "RenderSVGInlineText"_s; }
String originalText() const override;
void styleDidChange(StyleDifference, const RenderStyle*) override;
FloatRect objectBoundingBox() const override { return floatLinesBoundingBox(); }
VisiblePosition positionForPoint(const LayoutPoint&, HitTestSource, const RenderFragmentContainer*) override;
IntRect linesBoundingBox() const override;
void setTextInternal(const String&, bool force) final;
float m_scalingFactor;
FontCascade m_scaledFont;
SVGTextLayoutAttributes m_layoutAttributes;
RenderTextLineBoxes m_legacyLineBoxes;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGInlineText, isRenderSVGInlineText())
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