xypolardomain.cpp
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CppLexer
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r2845 | /****************************************************************************** | ||
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r2483 | ** | ||
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r2845 | ** Copyright (C) 2015 The Qt Company Ltd. | ||
** Contact: http://www.qt.io/licensing/ | ||||
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r2483 | ** | ||
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r2740 | ** This file is part of the Qt Charts module. | ||
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r2483 | ** | ||
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r2845 | ** $QT_BEGIN_LICENSE:COMM$ | ||
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r2483 | ** | ||
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r2845 | ** 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. | ||||
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r2483 | ** | ||
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r2845 | ** $QT_END_LICENSE$ | ||
** | ||||
******************************************************************************/ | ||||
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r2483 | |||
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r2714 | #include <private/xypolardomain_p.h> | ||
#include <private/qabstractaxis_p.h> | ||||
#include <QtCore/QtMath> | ||||
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r2483 | |||
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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r2483 | |||
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) | ||||
{ | ||||
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r2545 | storeZoomReset(); | ||
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r2483 | 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) | ||||
{ | ||||
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r2545 | storeZoomReset(); | ||
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r2483 | 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 | ||||
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r2712 | bool QT_CHARTS_AUTOTEST_EXPORT operator== (const XYPolarDomain &domain1, const XYPolarDomain &domain2) | ||
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r2483 | { | ||
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)); | ||||
} | ||||
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r2712 | bool QT_CHARTS_AUTOTEST_EXPORT operator!= (const XYPolarDomain &domain1, const XYPolarDomain &domain2) | ||
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r2483 | { | ||
return !(domain1 == domain2); | ||||
} | ||||
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r2712 | QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const XYPolarDomain &domain) | ||
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r2483 | { | ||
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r2620 | #ifdef QT_NO_TEXTSTREAM | ||
Q_UNUSED(domain) | ||||
#else | ||||
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r2483 | dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size; | ||
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r2620 | #endif | ||
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r2483 | return dbg.maybeSpace(); | ||
} | ||||
#include "moc_xypolardomain_p.cpp" | ||||
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r2712 | QT_CHARTS_END_NAMESPACE | ||