|
|
/******************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
|
** Contact: http://www.qt.io/licensing/
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE:COMM$
|
|
|
**
|
|
|
** Commercial License Usage
|
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
|
** accordance with the commercial license agreement provided with the
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
|
** and conditions see http://www.qt.io/terms-conditions. For further
|
|
|
** information use the contact form at http://www.qt.io/contact-us.
|
|
|
**
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
******************************************************************************/
|
|
|
|
|
|
#include <private/polarchartlogvalueaxisangular_p.h>
|
|
|
#include <private/abstractchartlayout_p.h>
|
|
|
#include <private/chartpresenter_p.h>
|
|
|
#include <QtCharts/QLogValueAxis>
|
|
|
#include <QtCore/QtMath>
|
|
|
#include <QtCore/QDebug>
|
|
|
#include <cmath>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
PolarChartLogValueAxisAngular::PolarChartLogValueAxisAngular(QLogValueAxis *axis, QGraphicsItem *item)
|
|
|
: PolarChartAxisAngular(axis, item)
|
|
|
{
|
|
|
QObject::connect(axis, SIGNAL(baseChanged(qreal)), this, SLOT(handleBaseChanged(qreal)));
|
|
|
QObject::connect(axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString)));
|
|
|
}
|
|
|
|
|
|
PolarChartLogValueAxisAngular::~PolarChartLogValueAxisAngular()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
QVector<qreal> PolarChartLogValueAxisAngular::calculateLayout() const
|
|
|
{
|
|
|
QLogValueAxis *logValueAxis = static_cast<QLogValueAxis *>(axis());
|
|
|
const qreal logMax = std::log10(logValueAxis->max()) / std::log10(logValueAxis->base());
|
|
|
const qreal logMin = std::log10(logValueAxis->min()) / std::log10(logValueAxis->base());
|
|
|
const qreal startEdge = logMin < logMax ? logMin : logMax;
|
|
|
const qreal delta = 360.0 / qAbs(logMax - logMin);
|
|
|
const qreal initialSpan = (qCeil(startEdge) - startEdge) * delta;
|
|
|
int tickCount = qAbs(qCeil(logMax) - qCeil(logMin));
|
|
|
|
|
|
QVector<qreal> points;
|
|
|
points.resize(tickCount);
|
|
|
|
|
|
for (int i = 0; i < tickCount; ++i) {
|
|
|
qreal angularCoordinate = initialSpan + (delta * qreal(i));
|
|
|
points[i] = angularCoordinate;
|
|
|
}
|
|
|
|
|
|
return points;
|
|
|
}
|
|
|
|
|
|
void PolarChartLogValueAxisAngular::createAxisLabels(const QVector<qreal> &layout)
|
|
|
{
|
|
|
QLogValueAxis *logValueAxis = static_cast<QLogValueAxis *>(axis());
|
|
|
setLabels(createLogValueLabels(logValueAxis->min(),
|
|
|
logValueAxis->max(),
|
|
|
logValueAxis->base(),
|
|
|
layout.size(),
|
|
|
logValueAxis->labelFormat()));
|
|
|
}
|
|
|
|
|
|
void PolarChartLogValueAxisAngular::handleBaseChanged(qreal base)
|
|
|
{
|
|
|
Q_UNUSED(base);
|
|
|
QGraphicsLayoutItem::updateGeometry();
|
|
|
if (presenter())
|
|
|
presenter()->layout()->invalidate();
|
|
|
}
|
|
|
|
|
|
void PolarChartLogValueAxisAngular::handleLabelFormatChanged(const QString &format)
|
|
|
{
|
|
|
Q_UNUSED(format);
|
|
|
QGraphicsLayoutItem::updateGeometry();
|
|
|
if (presenter())
|
|
|
presenter()->layout()->invalidate();
|
|
|
}
|
|
|
|
|
|
#include "moc_polarchartlogvalueaxisangular_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
