59 lines
2.4 KiB
C++
59 lines
2.4 KiB
C++
/*
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* Copyright (C) 2014-2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "FontCascade.h"
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#include "LayoutIntegrationRunIterator.h"
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#include "RenderStyleConstants.h"
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namespace WebCore {
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class LegacyInlineTextBox;
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class RenderStyle;
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class TextUnderlineOffset;
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inline float wavyOffsetFromDecoration()
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{
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return 1;
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}
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struct WavyStrokeParameters {
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// Distance between decoration's axis and Bezier curve's control points.
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// The height of the curve is based on this distance. Increases the curve's height
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// as fontSize increases to make the curve look better.
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float controlPointDistance { 0 };
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// Increment used to form the diamond shape between start point (p1), control
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// points and end point (p2) along the axis of the decoration. The curve gets
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// wider as font size increases.
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float step { 0 };
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};
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WavyStrokeParameters getWavyStrokeParameters(float fontSize);
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GlyphOverflow visualOverflowForDecorations(const RenderStyle& lineStyle, const LayoutIntegration::TextRunIterator&);
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float computeUnderlineOffset(TextUnderlinePosition, TextUnderlineOffset, const FontMetrics&, const LayoutIntegration::TextRunIterator&, float textDecorationThickness);
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} // namespace WebCore
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