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/*
* (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple 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.
*
*/
#ifndef TextPainter_h
#define TextPainter_h
#include "AffineTransform.h"
#include "DashArray.h"
#include "RenderText.h"
namespace WebCore {
class RenderCombineText;
struct TextPaintStyle;
enum RotationDirection { Counterclockwise, Clockwise };
static inline AffineTransform rotation(const FloatRect& boxRect, RotationDirection clockwise)
{
return clockwise ? AffineTransform(0, 1, -1, 0, boxRect.x() + boxRect.maxY(), boxRect.maxY() - boxRect.x())
: AffineTransform(0, -1, 1, 0, boxRect.x() - boxRect.maxY(), boxRect.x() + boxRect.maxY());
}
struct SavedDrawingStateForMask {
SavedDrawingStateForMask(GraphicsContext* context, TextPaintStyle* textPaintStyle, TextPaintStyle* selectionPaintStyle,
const ShadowData* textShadow, const ShadowData* selectionShadow)
: m_context(context)
, m_textPaintStyle(textPaintStyle)
, m_selectionPaintStyle(selectionPaintStyle)
, m_textShadow(textShadow)
, m_selectionShadow(selectionShadow)
{
}
GraphicsContext* m_context;
TextPaintStyle* m_textPaintStyle;
TextPaintStyle* m_selectionPaintStyle;
const ShadowData* m_textShadow;
const ShadowData* m_selectionShadow;
};
class TextPainter {
public:
TextPainter(GraphicsContext&, bool paintSelectedTextOnly, bool paintSelectedTextSeparately, const Font&,
int startPositionInTextRun, int endPositionInTextBoxString, int length, const AtomicString& emphasisMark, RenderCombineText*,
TextRun&, FloatRect& boxRect, FloatPoint& textOrigin, int emphasisMarkOffset, const ShadowData* textShadow, const ShadowData* selectionShadow,
bool textBoxIsHorizontal, TextPaintStyle& nonSelectionPaintStyle, TextPaintStyle& selectionPaintStyle);
void paintText();
void paintTextInContext(GraphicsContext&, float amountToIncreaseStrokeWidthBy);
DashArray dashesForIntersectionsWithRect(const FloatRect& lineExtents);
private:
bool m_paintSelectedTextOnly;
bool m_paintSelectedTextSeparately;
const Font& m_font;
int m_startPositionInTextRun;
int m_endPositionInTextRun;
int m_length;
const AtomicString& m_emphasisMark;
RenderCombineText* m_combinedText;
TextRun& m_textRun;
FloatRect& m_boxRect;
FloatPoint& m_textOrigin;
int m_emphasisMarkOffset;
bool m_textBoxIsHorizontal;
SavedDrawingStateForMask m_savedDrawingStateForMask;
};
} // namespace WebCore
#endif // TextPainter_h
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