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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 THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LAYOUT_SVG_INLINE_TEXT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LAYOUT_SVG_INLINE_TEXT_H_
#include "third_party/blink/renderer/core/layout/layout_text.h"
#include "third_party/blink/renderer/core/layout/svg/svg_character_data.h"
#include "third_party/blink/renderer/core/layout/svg/svg_text_metrics.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
class LayoutSVGInlineText final : public LayoutText {
public:
LayoutSVGInlineText(Node*, scoped_refptr<StringImpl>);
bool CharacterStartsNewTextChunk(int position) const;
SVGCharacterDataMap& CharacterDataMap() { return character_data_map_; }
const SVGCharacterDataMap& CharacterDataMap() const {
return character_data_map_;
}
const Vector<SVGTextMetrics>& MetricsList() const { return metrics_; }
float ScalingFactor() const { return scaling_factor_; }
const Font& ScaledFont() const { return scaled_font_; }
void UpdateScaledFont();
void UpdateMetricsList(bool& last_character_was_white_space);
static void ComputeNewScaledFontForStyle(const LayoutObject&,
float& scaling_factor,
Font& scaled_font);
// Preserves floating point precision for the use in DRT. It knows how to
// round and does a better job than enclosingIntRect.
FloatRect FloatLinesBoundingBox() const;
const char* GetName() const override { return "LayoutSVGInlineText"; }
private:
void SetTextInternal(scoped_refptr<StringImpl>) override;
void StyleDidChange(StyleDifference, const ComputedStyle*) override;
void AddMetricsFromRun(const TextRun&, bool& last_character_was_white_space);
FloatRect ObjectBoundingBox() const override {
return FloatLinesBoundingBox();
}
bool IsOfType(LayoutObjectType type) const override {
return type == kLayoutObjectSVG || type == kLayoutObjectSVGInlineText ||
LayoutText::IsOfType(type);
}
PositionWithAffinity PositionForPoint(const PhysicalOffset&) const override;
LayoutRect LocalCaretRect(
const InlineBox*,
int caret_offset,
LayoutUnit* extra_width_to_end_of_line = nullptr) const override;
PhysicalRect PhysicalLinesBoundingBox() const override;
InlineTextBox* CreateTextBox(int start, uint16_t length) override;
PhysicalRect VisualRectInDocument(VisualRectFlags) const final;
FloatRect VisualRectInLocalSVGCoordinates() const final;
float scaling_factor_;
Font scaled_font_;
SVGCharacterDataMap character_data_map_;
Vector<SVGTextMetrics> metrics_;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGInlineText, IsSVGInlineText());
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LAYOUT_SVG_INLINE_TEXT_H_
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