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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2003-2022 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* 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 "BorderData.h"
#include "GraphicsTypes.h"
#include "RenderBoxModelObject.h"
#include "RenderElement.h"
namespace WebCore {
class BorderShape;
class BorderPainter {
public:
BorderPainter(const RenderElement&, const PaintInfo&);
void paintBorder(const LayoutRect&, const RenderStyle&, BleedAvoidance = BleedAvoidance::None, RectEdges<bool> closedEdges = { true }) const;
bool paintNinePieceImage(const LayoutRect&, const RenderStyle&, const Style::BorderImage&, CompositeOperator = CompositeOperator::SourceOver) const;
bool paintNinePieceImage(const LayoutRect&, const RenderStyle&, const Style::MaskBorder&, CompositeOperator = CompositeOperator::SourceOver) const;
static void drawLineForBoxSide(GraphicsContext&, const Document&, const FloatRect&, BoxSide, Color, BorderStyle, float adjacentWidth1, float adjacentWidth2, bool antialias = false);
static std::optional<Path> pathForBorderArea(const LayoutRect&, const RenderStyle&, float deviceScaleFactor, RectEdges<bool> closedEdges = { true });
static bool shouldAntialiasLines(GraphicsContext&);
static bool decorationHasAllSolidEdges(const RectEdges<BorderEdge>&);
private:
friend class OutlinePainter;
struct Sides {
std::optional<BorderData::Radii> radii { }; // FIXME: Do we need this separately from the shape?
const BorderEdges& edges;
bool haveAllSolidEdges { true };
bool outerEdgeIsRectangular { true };
bool innerEdgeIsRectangular { true };
BleedAvoidance bleedAvoidance { BleedAvoidance::None };
RectEdges<bool> closedEdges = { true };
bool appliedClipAlready { false };
};
void paintSides(const BorderShape&, const Sides&) const;
template<typename T>
bool paintNinePieceImageImpl(const LayoutRect&, const RenderStyle&, const T&, CompositeOperator = CompositeOperator::SourceOver) const;
void paintTranslucentBorderSides(const BorderShape&, const Sides&, BoxSideSet edgesToDraw, bool antialias) const;
void paintBorderSides(const BorderShape&, const Sides&, BoxSideSet edgesToDraw, bool antialias, const Color* overrideColor = nullptr) const;
void paintOneBorderSide(const BorderShape&, const Sides&, const LayoutRect& sideRect, BoxSide, BoxSide adjacentSide1, BoxSide adjacentSide2, const Path*, bool antialias, const Color* overrideColor) const;
void drawBoxSideFromPath(const BorderShape&, const Path& borderPath, const BorderEdges&, float thickness, float drawThickness, BoxSide, Color, BorderStyle, BleedAvoidance) const;
void clipBorderSidePolygon(const BorderShape&, BoxSide, bool firstEdgeMatches, bool secondEdgeMatches) const;
LayoutRect borderRectAdjustedForBleedAvoidance(const LayoutRect&, BleedAvoidance) const;
static Color calculateBorderStyleColor(const BorderStyle&, const BoxSide&, const Color&);
const Document& document() const;
CheckedRef<const RenderElement> m_renderer;
const PaintInfo& m_paintInfo;
};
LayoutRect shrinkRectByOneDevicePixel(const GraphicsContext&, const LayoutRect&, float devicePixelRatio);
}
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