64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/*
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* Copyright (C) 2011 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "FontCascade.h"
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#include "RenderText.h"
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#include "Text.h"
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namespace WebCore {
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class RenderCombineText final : public RenderText {
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WTF_MAKE_ISO_ALLOCATED(RenderCombineText);
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public:
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RenderCombineText(Text&, const String&);
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Text& textNode() const { return downcast<Text>(nodeForNonAnonymous()); }
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void combineTextIfNeeded();
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std::optional<FloatPoint> computeTextOrigin(const FloatRect& boxRect) const;
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String combinedStringForRendering() const;
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bool isCombined() const { return m_isCombined; }
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float combinedTextWidth(const FontCascade& font) const { return font.size(); }
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const FontCascade& originalFont() const { return parent()->style().fontCascade(); }
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const FontCascade& textCombineFont() const { return m_combineFontStyle->fontCascade(); }
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private:
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void node() const = delete;
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bool isCombineText() const override { return true; }
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float width(unsigned from, unsigned length, const FontCascade&, float xPosition, HashSet<const Font*>* fallbackFonts = 0, GlyphOverflow* = 0) const override;
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const char* renderName() const override { return "RenderCombineText"; }
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void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
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void setRenderedText(const String&) override;
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std::unique_ptr<RenderStyle> m_combineFontStyle;
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float m_combinedTextWidth { 0 };
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float m_combinedTextAscent { 0 };
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float m_combinedTextDescent { 0 };
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bool m_isCombined : 1;
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bool m_needsFontUpdate : 1;
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderCombineText, isCombineText())
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