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Fix oscilloscope demos on android...
Fix oscilloscope demos on android qobject_cast doesn't seem to work properly on android, but there is no need to use it in oscilloscope demos, static cast works just as well there. Change-Id: Ia32c914dcec05dca48103fe8d4edec7c054c8bd8 Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Miikka Heikkinen - - Load All Authors

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r2483:f494279b6366
r2526:383eb97e1450
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polardomain.cpp
91 lines | 2.5 KiB | text/x-c | CppLexer
/ src / domain / polardomain.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
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "polardomain_p.h"
#include "qabstractaxis_p.h"
#include <qmath.h>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
PolarDomain::PolarDomain(QObject *parent)
: AbstractDomain(parent)
{
}
PolarDomain::~PolarDomain()
{
}
void PolarDomain::setSize(const QSizeF &size)
{
Q_ASSERT(size.width() == size.height());
m_radius = size.height() / 2;
m_center = QPointF(m_radius, m_radius);
AbstractDomain::setSize(size);
}
QPointF PolarDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const
{
qreal r;
qreal a = toAngularCoordinate(point.x(), ok);
if (ok)
r = toRadialCoordinate(point.y(), ok);
if (ok) {
return m_center + polarCoordinateToPoint(a, r);
} else {
qWarning() << "Logarithm of negative value is undefined. Empty layout returned.";
return QPointF();
}
}
QVector<QPointF> PolarDomain::calculateGeometryPoints(const QList<QPointF> &vector) const
{
QVector<QPointF> result;
result.resize(vector.count());
bool ok;
qreal r;
qreal a;
for (int i = 0; i < vector.count(); ++i) {
a = toAngularCoordinate(vector[i].x(), ok);
if (ok)
r = toRadialCoordinate(vector[i].y(), ok);
if (ok) {
result[i] = m_center + polarCoordinateToPoint(a, r);
} else {
qWarning() << "Logarithm of negative value is undefined. Empty layout returned.";
return QVector<QPointF>();
}
}
return result;
}
QPointF PolarDomain::polarCoordinateToPoint(qreal angularCoordinate, qreal radialCoordinate) const
{
qreal dx = qSin(angularCoordinate * (M_PI / 180)) * radialCoordinate;
qreal dy = qCos(angularCoordinate * (M_PI / 180)) * radialCoordinate;
return QPointF(dx, -dy);
}
#include "moc_polardomain_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE