HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/axis/polarchartaxisangular_p.h

Optimize polar chart radius calculation a bit....

Optimize polar chart radius calculation a bit. Current algorithm still results in an occasional extra unneeded iteration, as it uses only crude approximation for radius reduction. However, any speedup gained by accurately calculating needed reduction would be very minor compared to approximations used, so it doesn't seem worth the effort to figure out the complex math. Change-Id: If670a1b058a85cd0305b93f62e6388b463bafd0d Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

Miikka Heikkinen - - Load All Authors

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             polarchartaxisangular_p.h
        
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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

      ** $QT_END_LICENSE$

      **

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

      //  W A R N I N G

      //  -------------

      //

      // This file is not part of the QtCommercial Chart API.  It exists purely as an

      // implementation detail.  This header file may change from version to

      // version without notice, or even be removed.

      //

      // We mean it.

      #ifndef POLARCHARTAXISANGULAR_P_H

      #define POLARCHARTAXISANGULAR_P_H

      #include "polarchartaxis_p.h"

      #include "qvalueaxis.h"

      QTCOMMERCIALCHART_BEGIN_NAMESPACE

      class PolarChartAxisAngular : public PolarChartAxis

      {

          Q_OBJECT

      public:

          PolarChartAxisAngular(QAbstractAxis *axis, QGraphicsItem *item, bool intervalAxis = false);

          ~PolarChartAxisAngular();

          Qt::Orientation orientation() const;

          QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;

          virtual void updateGeometry();

          virtual void createItems(int count);

          qreal preferredAxisRadius(const QSizeF &maxSize);

      public Q_SLOTS:

          virtual void handleArrowPenChanged(const QPen &pen);

          virtual void handleGridPenChanged(const QPen &pen);

      private:

          QRectF moveLabelToPosition(qreal angularCoordinate, QPointF labelPoint, QRectF labelRect) const;

      };

      QTCOMMERCIALCHART_END_NAMESPACE

      #endif // POLARCHARTAXISANGULAR_P_H

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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
		** $QT_END_LICENSE$
		**
		****************************************************************************/

		// W A R N I N G
		// -------------
		//
		// This file is not part of the QtCommercial Chart API. It exists purely as an
		// implementation detail. This header file may change from version to
		// version without notice, or even be removed.
		//
		// We mean it.

		#ifndef POLARCHARTAXISANGULAR_P_H
		#define POLARCHARTAXISANGULAR_P_H

		#include "polarchartaxis_p.h"
		#include "qvalueaxis.h"

		QTCOMMERCIALCHART_BEGIN_NAMESPACE

		class PolarChartAxisAngular : public PolarChartAxis
		{
		Q_OBJECT
		public:
		PolarChartAxisAngular(QAbstractAxis axis, QGraphicsItem item, bool intervalAxis = false);
		~PolarChartAxisAngular();

		Qt::Orientation orientation() const;
		QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;

		virtual void updateGeometry();
		virtual void createItems(int count);

		qreal preferredAxisRadius(const QSizeF &maxSize);

		public Q_SLOTS:
		virtual void handleArrowPenChanged(const QPen &pen);
		virtual void handleGridPenChanged(const QPen &pen);

		private:
		QRectF moveLabelToPosition(qreal angularCoordinate, QPointF labelPoint, QRectF labelRect) const;
		};

		QTCOMMERCIALCHART_END_NAMESPACE

		#endif // POLARCHARTAXISANGULAR_P_H