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Add the new Qt template to demos and tests...
Add the new Qt template to demos and tests The new Qt template is added to demos and test applications that provide the selection for theme. Task-number: QTRD-1924 Change-Id: I847621c98c657e89678bc759ab9e8f6c290debd7 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
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polarchartlogvalueaxisradial.cpp
95 lines | 3.3 KiB | text/x-c | CppLexer
/ src / axis / logvalueaxis / polarchartlogvalueaxisradial.cpp
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Miikka Heikkinen
Add Polar chart support...
 r2483 /****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
 r2574 ** This file is part of the Qt Enterprise Charts Add-on.
Miikka Heikkinen
Add Polar chart support...
 r2483 **
** $QT_BEGIN_LICENSE$
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
 r2574 ** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
Miikka Heikkinen
Add Polar chart support...
 r2483 ** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "polarchartlogvalueaxisradial_p.h"
#include "abstractchartlayout_p.h"
#include "chartpresenter_p.h"
#include "qlogvalueaxis.h"
#include <qmath.h>
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
PolarChartLogValueAxisRadial::PolarChartLogValueAxisRadial(QLogValueAxis *axis, QGraphicsItem *item)
: PolarChartAxisRadial(axis, item)
{
QObject::connect(axis, SIGNAL(baseChanged(qreal)), this, SLOT(handleBaseChanged(qreal)));
QObject::connect(axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString)));
}
PolarChartLogValueAxisRadial::~PolarChartLogValueAxisRadial()
{
}
QVector<qreal> PolarChartLogValueAxisRadial::calculateLayout() const
{
QLogValueAxis *logValueAxis = static_cast<QLogValueAxis *>(axis());
const qreal logMax = log10(logValueAxis->max()) / log10(logValueAxis->base());
const qreal logMin = log10(logValueAxis->min()) / log10(logValueAxis->base());
const qreal innerEdge = logMin < logMax ? logMin : logMax;
const qreal outerEdge = logMin > logMax ? logMin : logMax;
const qreal delta = (axisGeometry().width() / 2.0) / qAbs(logMax - logMin);
const qreal initialSpan = (ceil(innerEdge) - innerEdge) * delta;
int tickCount = qAbs(ceil(logMax) - ceil(logMin));
// Extra tick if outer edge is exactly at the tick
if (outerEdge == ceil(outerEdge))
tickCount++;
QVector<qreal> points;
points.resize(tickCount);
for (int i = 0; i < tickCount; ++i) {
qreal radialCoordinate = initialSpan + (delta * qreal(i));
points[i] = radialCoordinate;
}
return points;
}
void PolarChartLogValueAxisRadial::createAxisLabels(const QVector<qreal> &layout)
{
QLogValueAxis *logValueAxis = static_cast<QLogValueAxis *>(axis());
setLabels(createLogValueLabels(logValueAxis->min(),
logValueAxis->max(),
logValueAxis->base(),
layout.size(),
logValueAxis->labelFormat()));
}
void PolarChartLogValueAxisRadial::handleBaseChanged(qreal base)
{
Q_UNUSED(base);
QGraphicsLayoutItem::updateGeometry();
if (presenter())
presenter()->layout()->invalidate();
}
void PolarChartLogValueAxisRadial::handleLabelFormatChanged(const QString &format)
{
Q_UNUSED(format);
QGraphicsLayoutItem::updateGeometry();
if (presenter())
presenter()->layout()->invalidate();
}
#include "moc_polarchartlogvalueaxisradial_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE