##// END OF EJS Templates
Optimize polar chart radius calculation a bit....
Optimize polar chart radius calculation a bit. Current algorithm still results in an occasional extra unneeded iteration, as it uses only crude approximation for radius reduction. However, any speedup gained by accurately calculating needed reduction would be very minor compared to approximations used, so it doesn't seem worth the effort to figure out the complex math. Change-Id: If670a1b058a85cd0305b93f62e6388b463bafd0d Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

File last commit:

r2477:56fd46a39576
r2542:189023d9a551
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qvalueaxis.h
84 lines | 2.4 KiB | text/x-c | CLexer
/****************************************************************************
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVALUEAXIS_H
#define QVALUEAXIS_H
#include "qabstractaxis.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class QValueAxisPrivate;
class QTCOMMERCIALCHART_EXPORT QValueAxis : public QAbstractAxis
{
Q_OBJECT
Q_PROPERTY(int tickCount READ tickCount WRITE setTickCount NOTIFY tickCountChanged)
Q_PROPERTY(bool niceNumbersEnabled READ niceNumbersEnabled WRITE setNiceNumbersEnabled)
Q_PROPERTY(qreal min READ min WRITE setMin NOTIFY minChanged)
Q_PROPERTY(qreal max READ max WRITE setMax NOTIFY maxChanged)
Q_PROPERTY(QString labelFormat READ labelFormat WRITE setLabelFormat NOTIFY labelFormatChanged)
public:
explicit QValueAxis(QObject *parent = 0);
~QValueAxis();
protected:
QValueAxis(QValueAxisPrivate &d, QObject *parent = 0);
public:
AxisType type() const;
//range handling
void setMin(qreal min);
qreal min() const;
void setMax(qreal max);
qreal max() const;
void setRange(qreal min, qreal max);
//ticks handling
void setTickCount(int count);
int tickCount() const;
void setLabelFormat(const QString &format);
QString labelFormat() const;
//TODO: deprecated! (2.0)
void setNiceNumbersEnabled(bool enable = true);
bool niceNumbersEnabled() const;
public Q_SLOTS:
void applyNiceNumbers();
Q_SIGNALS:
void minChanged(qreal min);
void maxChanged(qreal max);
void rangeChanged(qreal min, qreal max);
void tickCountChanged(int tickCount);
void labelFormatChanged(const QString &format);
private:
Q_DECLARE_PRIVATE(QValueAxis)
Q_DISABLE_COPY(QValueAxis)
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif // QVALUEAXIS_H