HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/charts/domain/logxypolardomain.cpp

Remove theme setting from StackedBarChart Drilldown example...

Remove theme setting from StackedBarChart Drilldown example The theme previously set for this example made it really slow on Android. Therefore the theme setting is removed. Change-Id: Ia454cdce2ebecfdd24ce9d91f1b8cb63fdb86be3 Reviewed-by: Mika Salmela <mika.salmela@theqtcompany.com>

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r2740:377e4516d036


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             logxypolardomain.cpp
        
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             / src / charts / domain / logxypolardomain.cpp
          
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        Miikka Heikkinen
    
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      /****************************************************************************

      **

        Titta Heikkala
    
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      ** Copyright (C) 2014 Digia Plc

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      ** All rights reserved.

        Titta Heikkala
    
Updated license headers...

              r2740
            
      ** For any questions to Digia, please use contact form at http://qt.io

        Miikka Heikkinen
    
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      **

        Titta Heikkala
    
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              r2740
            
      ** This file is part of the Qt Charts module.

        Miikka Heikkinen
    
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              r2483
            
      **

        Titta Heikkala
    
Updated license headers...

              r2740
            
      ** Licensees holding valid commercial license for Qt may use this file in

      ** accordance with the Qt License Agreement provided with the Software

      ** or, alternatively, in accordance with the terms contained in a written

      ** agreement between you and Digia.

        Miikka Heikkinen
    
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      **

      ** If you have questions regarding the use of this file, please use

        Titta Heikkala
    
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              r2740
            
      ** contact form at http://qt.io

        Miikka Heikkinen
    
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      **

      ****************************************************************************/

        Titta Heikkala
    
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      #include <private/logxypolardomain_p.h>

      #include <private/qabstractaxis_p.h>

      #include <QtCharts/QLogValueAxis>

      #include <QtCore/QtMath>

        Miikka Heikkinen
    
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        Titta Heikkala
    
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      QT_CHARTS_BEGIN_NAMESPACE

        Miikka Heikkinen
    
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      LogXYPolarDomain::LogXYPolarDomain(QObject *parent)

          : PolarDomain(parent),

            m_logLeftX(0),

            m_logRightX(1),

            m_logBaseX(10)

      {

      }

      LogXYPolarDomain::~LogXYPolarDomain()

      {

      }

      void LogXYPolarDomain::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 LogXYPolarDomain::zoomIn(const QRectF &rect)

      {

        Miikka Heikkinen
    
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          storeZoomReset();

        Miikka Heikkinen
    
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          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 LogXYPolarDomain::zoomOut(const QRectF &rect)

      {

        Miikka Heikkinen
    
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          storeZoomReset();

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          const qreal factorX = m_size.width() / rect.width();

          qreal logLeftX = m_logLeftX + (m_logRightX - m_logLeftX) / 2.0 * (1.0 - factorX);

          qreal logRIghtX = m_logLeftX + (m_logRightX - m_logLeftX) / 2.0 * (1.0 + 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 LogXYPolarDomain::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_radius;

          qreal minY = m_minY;

          qreal maxY = m_maxY;

          if (dy != 0) {

              minY = minY + y * dy;

              maxY = maxY + y * dy;

          }

          setRange(minX, maxX, minY, maxY);

      }

      qreal LogXYPolarDomain::toAngularCoordinate(qreal value, bool &ok) const

      {

          qreal retVal;

          if (value <= 0) {

              ok = false;

              retVal = 0.0;

          } else {

              ok =  true;

              const qreal tickSpan = 360.0 / qAbs(m_logRightX - m_logLeftX);

              const qreal logValue = log10(value) / log10(m_logBaseX);

              const qreal valueDelta = logValue - m_logLeftX;

              retVal = valueDelta * tickSpan;

          }

          return retVal;

      }

      qreal LogXYPolarDomain::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;

      }

      QPointF LogXYPolarDomain::calculateDomainPoint(const QPointF &point) const

      {

          if (point == m_center)

              return QPointF(0.0, m_minY);

          QLineF line(m_center, point);

          qreal a = 90.0 - line.angle();

          if (a < 0.0)

              a += 360.0;

          const qreal deltaX = 360.0 / qAbs(m_logRightX - m_logLeftX);

          a = qPow(m_logBaseX, m_logLeftX + (a / deltaX));

          qreal r = m_minY + ((m_maxY - m_minY) * (line.length() / m_radius));

          return QPointF(a, r);

      }

      bool LogXYPolarDomain::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 LogXYPolarDomain::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 LogXYPolarDomain::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

        Titta Heikkala
    
Qt Charts project file structure change...

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      bool QT_CHARTS_AUTOTEST_EXPORT operator== (const LogXYPolarDomain &domain1, const LogXYPolarDomain &domain2)

        Miikka Heikkinen
    
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      {

          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));

      }

        Titta Heikkala
    
Qt Charts project file structure change...

              r2712
            
      bool QT_CHARTS_AUTOTEST_EXPORT operator!= (const LogXYPolarDomain &domain1, const LogXYPolarDomain &domain2)

        Miikka Heikkinen
    
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      {

          return !(domain1 == domain2);

      }

        Titta Heikkala
    
Qt Charts project file structure change...

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      QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const LogXYPolarDomain &domain)

        Miikka Heikkinen
    
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      {

        Titta Heikkala
    
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      #ifdef QT_NO_TEXTSTREAM

          Q_UNUSED(domain)

      #else

        Miikka Heikkinen
    
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          dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;

        Titta Heikkala
    
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      #endif

        Miikka Heikkinen
    
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          return dbg.maybeSpace();

      }

      #include "moc_logxypolardomain_p.cpp"

        Titta Heikkala
    
Qt Charts project file structure change...

              r2712
            
      QT_CHARTS_END_NAMESPACE

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Miikka Heikkinen Add Polar chart support...	r2483	/****************************************************************************
		**
Titta Heikkala Update copyright year...	r2688	** Copyright (C) 2014 Digia Plc
Miikka Heikkinen Add Polar chart support...	r2483	** All rights reserved.
Titta Heikkala Updated license headers...	r2740	** For any questions to Digia, please use contact form at http://qt.io
Miikka Heikkinen Add Polar chart support...	r2483	**
Titta Heikkala Updated license headers...	r2740	** This file is part of the Qt Charts module.
Miikka Heikkinen Add Polar chart support...	r2483	**
Titta Heikkala Updated license headers...	r2740	** Licensees holding valid commercial license for Qt may use this file in
		** accordance with the Qt License Agreement provided with the Software
		** or, alternatively, in accordance with the terms contained in a written
		** agreement between you and Digia.
Miikka Heikkinen Add Polar chart support...	r2483	**
		** If you have questions regarding the use of this file, please use
Titta Heikkala Updated license headers...	r2740	** contact form at http://qt.io
Miikka Heikkinen Add Polar chart support...	r2483	**
		****************************************************************************/

Titta Heikkala Fix include syntax...	r2714	#include <private/logxypolardomain_p.h>
		#include <private/qabstractaxis_p.h>
		#include <QtCharts/QLogValueAxis>
		#include <QtCore/QtMath>
Miikka Heikkinen Add Polar chart support...	r2483
Titta Heikkala Qt Charts project file structure change...	r2712	QT_CHARTS_BEGIN_NAMESPACE
Miikka Heikkinen Add Polar chart support...	r2483
		LogXYPolarDomain::LogXYPolarDomain(QObject *parent)
		: PolarDomain(parent),
		m_logLeftX(0),
		m_logRightX(1),
		m_logBaseX(10)
		{
		}

		LogXYPolarDomain::~LogXYPolarDomain()
		{
		}

		void LogXYPolarDomain::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 LogXYPolarDomain::zoomIn(const QRectF &rect)
		{
Miikka Heikkinen Added QChart::zoomReset() and QChart::isZoomed()...	r2545	storeZoomReset();
Miikka Heikkinen Add Polar chart support...	r2483	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 LogXYPolarDomain::zoomOut(const QRectF &rect)
		{
Miikka Heikkinen Added QChart::zoomReset() and QChart::isZoomed()...	r2545	storeZoomReset();
Miikka Heikkinen Add Polar chart support...	r2483	const qreal factorX = m_size.width() / rect.width();

		qreal logLeftX = m_logLeftX + (m_logRightX - m_logLeftX) / 2.0 * (1.0 - factorX);
		qreal logRIghtX = m_logLeftX + (m_logRightX - m_logLeftX) / 2.0 * (1.0 + 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 LogXYPolarDomain::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_radius;
		qreal minY = m_minY;
		qreal maxY = m_maxY;

		if (dy != 0) {
		minY = minY + y * dy;
		maxY = maxY + y * dy;
		}
		setRange(minX, maxX, minY, maxY);
		}

		qreal LogXYPolarDomain::toAngularCoordinate(qreal value, bool &ok) const
		{
		qreal retVal;
		if (value <= 0) {
		ok = false;
		retVal = 0.0;
		} else {
		ok = true;
		const qreal tickSpan = 360.0 / qAbs(m_logRightX - m_logLeftX);
		const qreal logValue = log10(value) / log10(m_logBaseX);
		const qreal valueDelta = logValue - m_logLeftX;

		retVal = valueDelta * tickSpan;
		}
		return retVal;
		}

		qreal LogXYPolarDomain::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;
		}

		QPointF LogXYPolarDomain::calculateDomainPoint(const QPointF &point) const
		{
		if (point == m_center)
		return QPointF(0.0, m_minY);

		QLineF line(m_center, point);
		qreal a = 90.0 - line.angle();
		if (a < 0.0)
		a += 360.0;

		const qreal deltaX = 360.0 / qAbs(m_logRightX - m_logLeftX);
		a = qPow(m_logBaseX, m_logLeftX + (a / deltaX));

		qreal r = m_minY + ((m_maxY - m_minY) * (line.length() / m_radius));

		return QPointF(a, r);
		}

		bool LogXYPolarDomain::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 LogXYPolarDomain::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 LogXYPolarDomain::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

Titta Heikkala Qt Charts project file structure change...	r2712	bool QT_CHARTS_AUTOTEST_EXPORT operator== (const LogXYPolarDomain &domain1, const LogXYPolarDomain &domain2)
Miikka Heikkinen Add Polar chart support...	r2483	{
		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));
		}


Titta Heikkala Qt Charts project file structure change...	r2712	bool QT_CHARTS_AUTOTEST_EXPORT operator!= (const LogXYPolarDomain &domain1, const LogXYPolarDomain &domain2)
Miikka Heikkinen Add Polar chart support...	r2483	{
		return !(domain1 == domain2);
		}


Titta Heikkala Qt Charts project file structure change...	r2712	QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const LogXYPolarDomain &domain)
Miikka Heikkinen Add Polar chart support...	r2483	{
Titta Heikkala Fix Chart build when QT_NO_TEXTSTREAM is defined...	r2620	#ifdef QT_NO_TEXTSTREAM
		Q_UNUSED(domain)
		#else
Miikka Heikkinen Add Polar chart support...	r2483	dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
Titta Heikkala Fix Chart build when QT_NO_TEXTSTREAM is defined...	r2620	#endif
Miikka Heikkinen Add Polar chart support...	r2483	return dbg.maybeSpace();
		}

		#include "moc_logxypolardomain_p.cpp"

Titta Heikkala Qt Charts project file structure change...	r2712	QT_CHARTS_END_NAMESPACE