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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2013 Adobe Systems Incorporated.
*
* 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 LineInfo_h
#define LineInfo_h
#include "core/rendering/line/LineWidth.h"
namespace WebCore {
class LineInfo {
public:
LineInfo()
: m_isFirstLine(true)
, m_isLastLine(false)
, m_isEmpty(true)
, m_previousLineBrokeCleanly(true)
, m_floatPaginationStrut(0)
, m_runsFromLeadingWhitespace(0)
{ }
bool isFirstLine() const { return m_isFirstLine; }
bool isLastLine() const { return m_isLastLine; }
bool isEmpty() const { return m_isEmpty; }
bool previousLineBrokeCleanly() const { return m_previousLineBrokeCleanly; }
LayoutUnit floatPaginationStrut() const { return m_floatPaginationStrut; }
unsigned runsFromLeadingWhitespace() const { return m_runsFromLeadingWhitespace; }
void resetRunsFromLeadingWhitespace() { m_runsFromLeadingWhitespace = 0; }
void incrementRunsFromLeadingWhitespace() { m_runsFromLeadingWhitespace++; }
void setFirstLine(bool firstLine) { m_isFirstLine = firstLine; }
void setLastLine(bool lastLine) { m_isLastLine = lastLine; }
void setEmpty(bool empty, RenderBlock* block = 0, LineWidth* lineWidth = 0)
{
if (m_isEmpty == empty)
return;
m_isEmpty = empty;
if (!empty && block && floatPaginationStrut()) {
block->setLogicalHeight(block->logicalHeight() + floatPaginationStrut());
setFloatPaginationStrut(0);
lineWidth->updateAvailableWidth();
}
}
void setPreviousLineBrokeCleanly(bool previousLineBrokeCleanly) { m_previousLineBrokeCleanly = previousLineBrokeCleanly; }
void setFloatPaginationStrut(LayoutUnit strut) { m_floatPaginationStrut = strut; }
private:
bool m_isFirstLine;
bool m_isLastLine;
bool m_isEmpty;
bool m_previousLineBrokeCleanly;
LayoutUnit m_floatPaginationStrut;
unsigned m_runsFromLeadingWhitespace;
};
}
#endif // LineInfo_h
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