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Diffstat (limited to 'src/domain/logxydomain.cpp')
| -rw-r--r-- | src/domain/logxydomain.cpp | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/src/domain/logxydomain.cpp b/src/domain/logxydomain.cpp deleted file mode 100644 index 0fb9e856..00000000 --- a/src/domain/logxydomain.cpp +++ /dev/null @@ -1,245 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 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 Enterprise Charts Add-on. -** -** $QT_BEGIN_LICENSE$ -** Licensees holding valid Qt Enterprise licenses may use this file in -** accordance with the Qt Enterprise 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 "logxydomain_p.h" -#include "qabstractaxis_p.h" -#include "qlogvalueaxis.h" -#include <qmath.h> - -QTCOMMERCIALCHART_BEGIN_NAMESPACE - -LogXYDomain::LogXYDomain(QObject *parent) - : AbstractDomain(parent), - m_logLeftX(0), - m_logRightX(1), - m_logBaseX(10) -{ -} - -LogXYDomain::~LogXYDomain() -{ -} - -void LogXYDomain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY) -{ - bool axisXChanged = false; - bool axisYChanged = false; - - adjustLogDomainRanges(minX, maxX); - - if (!qFuzzyCompare(m_minX, minX) || !qFuzzyCompare(m_maxX, maxX)) { - m_minX = minX; - m_maxX = maxX; - axisXChanged = true; - qreal logMinX = log10(m_minX) / log10(m_logBaseX); - qreal logMaxX = log10(m_maxX) / log10(m_logBaseX); - m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX; - m_logRightX = logMinX > logMaxX ? logMinX : logMaxX; - if(!m_signalsBlocked) - emit rangeHorizontalChanged(m_minX, m_maxX); - } - - if (!qFuzzyIsNull(m_minY - minY) || !qFuzzyIsNull(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 LogXYDomain::zoomIn(const QRectF &rect) -{ - storeZoomReset(); - qreal logLeftX = rect.left() * (m_logRightX - m_logLeftX) / m_size.width() + m_logLeftX; - qreal logRightX = rect.right() * (m_logRightX - m_logLeftX) / m_size.width() + m_logLeftX; - qreal leftX = qPow(m_logBaseX, logLeftX); - qreal rightX = qPow(m_logBaseX, logRightX); - qreal minX = leftX < rightX ? leftX : rightX; - qreal maxX = leftX > rightX ? leftX : rightX; - - qreal dy = spanY() / m_size.height(); - qreal minY = m_minY; - qreal maxY = m_maxY; - - minY = maxY - dy * rect.bottom(); - maxY = maxY - dy * rect.top(); - - setRange(minX, maxX, minY, maxY); -} - -void LogXYDomain::zoomOut(const QRectF &rect) -{ - storeZoomReset(); - const qreal factorX = m_size.width() / rect.width(); - - qreal logLeftX = m_logLeftX + (m_logRightX - m_logLeftX) / 2 * (1 - factorX); - qreal logRIghtX = m_logLeftX + (m_logRightX - m_logLeftX) / 2 * (1 + factorX); - qreal leftX = qPow(m_logBaseX, logLeftX); - qreal rightX = qPow(m_logBaseX, logRIghtX); - qreal minX = leftX < rightX ? leftX : rightX; - qreal maxX = leftX > rightX ? leftX : rightX; - - qreal dy = spanY() / rect.height(); - qreal minY = m_minY; - qreal maxY = m_maxY; - - maxY = minY + dy * rect.bottom(); - minY = maxY - dy * m_size.height(); - - setRange(minX, maxX, minY, maxY); -} - -void LogXYDomain::move(qreal dx, qreal dy) -{ - qreal stepX = dx * (m_logRightX - m_logLeftX) / m_size.width(); - qreal leftX = qPow(m_logBaseX, m_logLeftX + stepX); - qreal rightX = qPow(m_logBaseX, m_logRightX + stepX); - qreal minX = leftX < rightX ? leftX : rightX; - qreal maxX = leftX > rightX ? leftX : rightX; - - qreal y = spanY() / m_size.height(); - qreal minY = m_minY; - qreal maxY = m_maxY; - - if (dy != 0) { - minY = minY + y * dy; - maxY = maxY + y * dy; - } - setRange(minX, maxX, minY, maxY); -} - -QPointF LogXYDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const -{ - const qreal deltaX = m_size.width() / (m_logRightX - m_logLeftX); - const qreal deltaY = m_size.height() / (m_maxY - m_minY); - - qreal x(0); - qreal y = (point.y() - m_minY) * -deltaY + m_size.height(); - if (point.x() > 0) { - x = (log10(point.x()) / log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX; - ok = true; - } else { - x = 0; - qWarning() << "Logarithms of zero and negative values are undefined."; - ok = false; - } - return QPointF(x, y); -} - -QVector<QPointF> LogXYDomain::calculateGeometryPoints(const QList<QPointF> &vector) const -{ - const qreal deltaX = m_size.width() / (m_logRightX - m_logLeftX); - const qreal deltaY = m_size.height() / (m_maxY - m_minY); - - QVector<QPointF> result; - result.resize(vector.count()); - - for (int i = 0; i < vector.count(); ++i) { - if (vector[i].x() > 0) { - qreal x = (log10(vector[i].x()) / log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX; - qreal y = (vector[i].y() - m_minY) * -deltaY + m_size.height(); - result[i].setX(x); - result[i].setY(y); - } else { - qWarning() << "Logarithms of zero and negative values are undefined."; - return QVector<QPointF>(); - } - - } - return result; -} - -QPointF LogXYDomain::calculateDomainPoint(const QPointF &point) const -{ - const qreal deltaX = m_size.width() / (m_logRightX - m_logLeftX); - const qreal deltaY = m_size.height() / (m_maxY - m_minY); - qreal x = qPow(m_logBaseX, m_logLeftX + point.x() / deltaX); - qreal y = (point.y() - m_size.height()) / (-deltaY) + m_minY; - return QPointF(x, y); -} - -bool LogXYDomain::attachAxis(QAbstractAxis *axis) -{ - AbstractDomain::attachAxis(axis); - QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis); - - if (logAxis && logAxis->orientation() == Qt::Horizontal) { - QObject::connect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal))); - handleHorizontalAxisBaseChanged(logAxis->base()); - } - - return true; -} - -bool LogXYDomain::detachAxis(QAbstractAxis *axis) -{ - AbstractDomain::detachAxis(axis); - QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis); - - if (logAxis && logAxis->orientation() == Qt::Horizontal) - QObject::disconnect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal))); - - return true; -} - -void LogXYDomain::handleHorizontalAxisBaseChanged(qreal baseX) -{ - m_logBaseX = baseX; - qreal logMinX = log10(m_minX) / log10(m_logBaseX); - qreal logMaxX = log10(m_maxX) / log10(m_logBaseX); - m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX; - m_logRightX = logMinX > logMaxX ? logMinX : logMaxX; - emit updated(); -} - -// operators - -bool QTCOMMERCIALCHART_AUTOTEST_EXPORT operator== (const LogXYDomain &domain1, const LogXYDomain &domain2) -{ - return (qFuzzyIsNull(domain1.m_maxX - domain2.m_maxX) - && qFuzzyIsNull(domain1.m_maxY - domain2.m_maxY) - && qFuzzyIsNull(domain1.m_minX - domain2.m_minX) - && qFuzzyIsNull(domain1.m_minY - domain2.m_minY)); -} - - -bool QTCOMMERCIALCHART_AUTOTEST_EXPORT operator!= (const LogXYDomain &domain1, const LogXYDomain &domain2) -{ - return !(domain1 == domain2); -} - - -QDebug QTCOMMERCIALCHART_AUTOTEST_EXPORT operator<<(QDebug dbg, const LogXYDomain &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(); -} - -#include "moc_logxydomain_p.cpp" - -QTCOMMERCIALCHART_END_NAMESPACE |