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/* This file is part of the KDE project
* Copyright (C) 2006-2007, 2010 Thomas Zander <zander@kde.org>
* Copyright (C) 2010 Ko Gmbh <cbo@kogmbh.com>
*
* 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 RUNAROUNDHELPER_H
#define RUNAROUNDHELPER_H
#include <QList>
#include <QTextLine>
#include <QRectF>
class KoTextLayoutArea;
class KoTextLayoutObstruction;
class RunAroundHelper
{
public:
RunAroundHelper();
void setLine(KoTextLayoutArea *area, const QTextLine &l);
void setObstructions(const QList<KoTextLayoutObstruction *> &obstructions);
bool stayOnBaseline() const;
void updateObstruction(KoTextLayoutObstruction *obstruction);
bool fit(bool resetHorizontalPosition, bool isRightToLeft, const QPointF &position);
QTextLine line;
private:
KoTextLayoutArea *m_area;
QList<KoTextLayoutObstruction*> m_obstructions;
QList<KoTextLayoutObstruction*> m_validObstructions;
QList<QRectF> m_lineParts;
QRectF m_lineRect;
qreal m_horizontalPosition;
bool m_updateValidObstructions;
bool m_stayOnBaseline;
qreal m_textWidth;
void validateObstructions();
void validateObstruction(KoTextLayoutObstruction *obstruction);
void createLineParts();
QRectF minimizeHeightToLeastNeeded(const QRectF &lineRect);
void updateLineParts(const QRectF &lineRect);
QRectF getLineRectPart();
void setMaxTextWidth(const QRectF &minLineRectPart, const qreal leftIndent, const qreal maxNaturalTextWidth);
QRectF getLineRect(const QRectF &lineRect, const qreal maxNaturalTextWidth);
void checkEndOfLine(const QRectF &lineRectPart, const qreal maxNaturalTextWidth);
};
#endif
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