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Optimize string truncation algorithm...
Optimize string truncation algorithm Use binary search for truncating strings instead of linear search. Change-Id: I31cde493328e3192a53802aa65dea61975b9e87f Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

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polarchartaxis_p.h
70 lines | 2.0 KiB | text/x-c | CLexer
/ src / axis / polarchartaxis_p.h
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the QtCommercial Chart API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef POLARCHARTAXIS_P_H
#define POLARCHARTAXIS_P_H
#include "chartaxiselement_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class PolarChartAxis : public ChartAxisElement
{
Q_OBJECT
Q_INTERFACES(QGraphicsLayoutItem)
public:
PolarChartAxis(QAbstractAxis *axis, QGraphicsItem *item, bool intervalAxis = false);
~PolarChartAxis();
void setGeometry(const QRectF &axis, const QRectF &grid);
virtual qreal preferredAxisRadius(const QSizeF &maxSize) = 0;
int tickWidth() { return 3; }
public: // from ChartAxisElement
QRectF gridGeometry() const;
bool isEmpty();
protected:
void updateLayout(QVector<qreal> &layout);
protected: // virtual functions
virtual void createItems(int count) = 0;
virtual void createAxisLabels(const QVector<qreal> &layout) = 0;
public Q_SLOTS:
virtual void handleShadesBrushChanged(const QBrush &brush);
virtual void handleShadesPenChanged(const QPen &pen);
private:
void deleteItems(int count);
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif // POLARCHARTAXIS_P_H