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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <private/xypolardomain_p.h>
#include <private/qabstractaxis_p.h>
#include <QtCore/QtMath>
QT_CHARTS_BEGIN_NAMESPACE
XYPolarDomain::XYPolarDomain(QObject *parent)
: PolarDomain(parent)
{
}
XYPolarDomain::~XYPolarDomain()
{
}
void XYPolarDomain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
{
bool axisXChanged = false;
bool axisYChanged = false;
if (!qFuzzyCompare(m_minX, minX) || !qFuzzyCompare(m_maxX, maxX)) {
m_minX = minX;
m_maxX = maxX;
axisXChanged = true;
if (!m_signalsBlocked)
emit rangeHorizontalChanged(m_minX, m_maxX);
}
if (!qFuzzyCompare(m_minY, minY) || !qFuzzyCompare(m_maxY, maxY)) {
m_minY = minY;
m_maxY = maxY;
axisYChanged = true;
if (!m_signalsBlocked)
emit rangeVerticalChanged(m_minY, m_maxY);
}
if (axisXChanged || axisYChanged)
emit updated();
}
void XYPolarDomain::zoomIn(const QRectF &rect)
{
storeZoomReset();
qreal dx = spanX() / m_size.width();
qreal dy = spanY() / m_size.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
maxX = minX + dx * rect.right();
minX = minX + dx * rect.left();
minY = maxY - dy * rect.bottom();
maxY = maxY - dy * rect.top();
setRange(minX, maxX, minY, maxY);
}
void XYPolarDomain::zoomOut(const QRectF &rect)
{
storeZoomReset();
qreal dx = spanX() / rect.width();
qreal dy = spanY() / rect.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
minX = maxX - dx * rect.right();
maxX = minX + dx * m_size.width();
maxY = minY + dy * rect.bottom();
minY = maxY - dy * m_size.height();
setRange(minX, maxX, minY, maxY);
}
void XYPolarDomain::move(qreal dx, qreal dy)
{
// One unit scrolls one degree angular and one pixel radial
qreal x = spanX() / 360.0;
qreal y = spanY() / m_radius;
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
if (dx != 0) {
minX = minX + x * dx;
maxX = maxX + x * dx;
}
if (dy != 0) {
minY = minY + y * dy;
maxY = maxY + y * dy;
}
setRange(minX, maxX, minY, maxY);
}
QPointF XYPolarDomain::calculateDomainPoint(const QPointF &point) const
{
if (point == m_center)
return QPointF(0.0, m_minX);
QLineF line(m_center, point);
qreal a = 90.0 - line.angle();
if (a < 0.0)
a += 360.0;
a = ((a / 360.0) * (m_maxX - m_minX)) + m_minX;
qreal r = m_minY + ((m_maxY - m_minY) * (line.length() / m_radius));
return QPointF(a, r);
}
qreal XYPolarDomain::toAngularCoordinate(qreal value, bool &ok) const
{
ok = true;
qreal f = (value - m_minX) / (m_maxX - m_minX);
return f * 360.0;
}
qreal XYPolarDomain::toRadialCoordinate(qreal value, bool &ok) const
{
ok = true;
if (value < m_minY)
value = m_minY;
// Dont limit the max. The drawing should clip the stuff that goes out of the grid
qreal f = (value - m_minY) / (m_maxY - m_minY);
return f * m_radius;
}
// operators
bool Q_AUTOTEST_EXPORT operator== (const XYPolarDomain &domain1, const XYPolarDomain &domain2)
{
return (qFuzzyCompare(domain1.m_maxX, domain2.m_maxX)
&& qFuzzyCompare(domain1.m_maxY, domain2.m_maxY)
&& qFuzzyCompare(domain1.m_minX, domain2.m_minX)
&& qFuzzyCompare(domain1.m_minY, domain2.m_minY));
}
bool Q_AUTOTEST_EXPORT operator!= (const XYPolarDomain &domain1, const XYPolarDomain &domain2)
{
return !(domain1 == domain2);
}
QDebug Q_AUTOTEST_EXPORT operator<<(QDebug dbg, const XYPolarDomain &domain)
{
#ifdef QT_NO_TEXTSTREAM
Q_UNUSED(domain)
#else
dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
#endif
return dbg.maybeSpace();
}
QT_CHARTS_END_NAMESPACE
#include "moc_xypolardomain_p.cpp"
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