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/*
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "FloatRect.h"
#include "FloatRoundedRect.h"
#include "InlineIteratorInlineBox.h"
#include "InlineIteratorTextBox.h"
#include "RenderObject.h"
#include "TextBoxSelectableRange.h"
#include "TextDecorationPainter.h"
#include "TextRun.h"
namespace WebCore {
class Color;
class Document;
class RenderCombineText;
class RenderStyle;
class RenderText;
class ShadowData;
struct CompositionUnderline;
struct MarkedText;
struct PaintInfo;
struct StyledMarkedText;
class TextBoxPainter {
public:
TextBoxPainter(const LayoutIntegration::InlineContent&, const InlineDisplay::Box&, const RenderStyle&, PaintInfo&, const LayoutPoint& paintOffset);
~TextBoxPainter();
void paint();
static inline FloatSize rotateShadowOffset(const SpaceSeparatedPoint<Style::Length<>>& offset, WritingMode);
protected:
auto& textBox() const { return m_textBox; }
InlineIterator::TextBoxIterator makeIterator() const;
void paintBackground();
void paintForegroundAndDecorations();
void paintCompositionBackground();
void paintCompositionUnderlines();
void paintCompositionForeground(const StyledMarkedText&);
void paintPlatformDocumentMarkers();
enum class BackgroundStyle { Normal, Rounded };
void paintBackground(unsigned startOffset, unsigned endOffset, const Color&, BackgroundStyle = BackgroundStyle::Normal);
void paintBackground(const StyledMarkedText&);
void paintForeground(const StyledMarkedText&);
TextDecorationPainter createDecorationPainter(const StyledMarkedText&, const FloatRect&);
void paintBackgroundDecorations(TextDecorationPainter&, const StyledMarkedText&, const FloatRect&);
void paintForegroundDecorations(TextDecorationPainter&, const StyledMarkedText&, const FloatRect&);
void paintCompositionUnderline(const CompositionUnderline&, const FloatRoundedRect::Radii&, bool hasLiveConversion);
void fillCompositionUnderline(float start, float width, const CompositionUnderline&, const FloatRoundedRect::Radii&, bool hasLiveConversion) const;
void paintPlatformDocumentMarker(const MarkedText&);
float textPosition();
FloatRect computePaintRect(const LayoutPoint& paintOffset);
bool computeHaveSelection() const;
std::pair<unsigned, unsigned> selectionStartEnd() const;
MarkedText createMarkedTextFromSelectionInBox();
const FontCascade& fontCascade() const;
WritingMode writingMode() const { return m_style.writingMode(); }
FloatPoint textOriginFromPaintRect(const FloatRect&) const;
struct DecoratingBox {
InlineIterator::InlineBoxIterator inlineBox;
const RenderStyle& style;
TextDecorationPainter::Styles textDecorationStyles;
FloatPoint location;
};
using DecoratingBoxList = Vector<DecoratingBox>;
void collectDecoratingBoxesForBackgroundPainting(DecoratingBoxList&, const InlineIterator::TextBoxIterator&, FloatPoint textBoxLocation, const TextDecorationPainter::Styles&);
// FIXME: We could just talk to the display box directly.
const InlineIterator::BoxModernPath m_textBox;
const RenderText& m_renderer;
const Document& m_document;
const RenderStyle& m_style;
const FloatRect m_logicalRect;
const TextRun m_paintTextRun;
PaintInfo& m_paintInfo;
const TextBoxSelectableRange m_selectableRange;
const LayoutPoint m_paintOffset;
const FloatRect m_paintRect;
const bool m_isFirstLine;
const bool m_isCombinedText;
const bool m_isPrinting;
const bool m_haveSelection;
bool m_containsComposition { false };
bool m_useCustomUnderlines { false };
std::optional<bool> m_emphasisMarkExistsAndIsAbove { };
};
inline FloatSize TextBoxPainter::rotateShadowOffset(const SpaceSeparatedPoint<Style::Length<>>& offset, WritingMode writingMode)
{
if (writingMode.isHorizontal())
return { offset.x().value, offset.y().value };
if (writingMode.isLineOverLeft()) // sideways-lr
return { -offset.y().value, offset.x().value };
return { offset.y().value, -offset.x().value };
}
}
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