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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.
*/
#ifndef LayoutSVGInlineText_h
#define LayoutSVGInlineText_h
#include "core/layout/LayoutText.h"
#include "core/layout/svg/SVGCharacterData.h"
#include "core/layout/svg/SVGTextMetrics.h"
#include "wtf/Vector.h"
namespace blink {
class LayoutSVGInlineText final : public LayoutText {
public:
LayoutSVGInlineText(Node*, PassRefPtr<StringImpl>);
bool characterStartsNewTextChunk(int position) const;
SVGCharacterDataMap& characterDataMap() { return m_characterDataMap; }
const SVGCharacterDataMap& characterDataMap() const {
return m_characterDataMap;
}
const Vector<SVGTextMetrics>& metricsList() const { return m_metrics; }
float scalingFactor() const { return m_scalingFactor; }
const Font& scaledFont() const { return m_scaledFont; }
void updateScaledFont();
void updateMetricsList(bool& lastCharacterWasWhiteSpace);
static void computeNewScaledFontForStyle(const LayoutObject&,
float& scalingFactor,
Font& 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;
PassRefPtr<StringImpl> originalText() const override;
const char* name() const override { return "LayoutSVGInlineText"; }
private:
void setTextInternal(PassRefPtr<StringImpl>) override;
void styleDidChange(StyleDifference, const ComputedStyle*) override;
void addMetricsFromRun(const TextRun&, bool& lastCharacterWasWhiteSpace);
FloatRect objectBoundingBox() const override {
return floatLinesBoundingBox();
}
bool isOfType(LayoutObjectType type) const override {
return type == LayoutObjectSVG || type == LayoutObjectSVGInlineText ||
LayoutText::isOfType(type);
}
PositionWithAffinity positionForPoint(const LayoutPoint&) override;
LayoutRect localCaretRect(
InlineBox*,
int caretOffset,
LayoutUnit* extraWidthToEndOfLine = nullptr) override;
LayoutRect linesBoundingBox() const override;
InlineTextBox* createTextBox(int start, unsigned short length) override;
LayoutRect absoluteVisualRect() const final;
FloatRect visualRectInLocalSVGCoordinates() const final;
float m_scalingFactor;
Font m_scaledFont;
SVGCharacterDataMap m_characterDataMap;
Vector<SVGTextMetrics> m_metrics;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGInlineText, isSVGInlineText());
} // namespace blink
#endif // LayoutSVGInlineText_h
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