HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/xychart/qxymodelmapper_p.h

Added a new QXYSeries::replace override for performance reasons....

Added a new QXYSeries::replace override for performance reasons. Also added a QML demo application for oscilloscope use case. Oscilloscope use case was selected, because it involves a lot of data and has a strict requirements for performance. It revealed performance issues in data handling in QXYSeries, painting of QLineSeries and updating data in a model.

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             qxymodelmapper_p.h
        
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        Marek Rosa
    
Added license text to mapper classes

              r1355
            
      /****************************************************************************

      **

      ** Copyright (C) 2012 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.

        Marek Rosa
    
XYModelMapper slots for model signals implemented

              r1256
            
      #ifndef QXYMODELMAPPER_P_H

      #define QXYMODELMAPPER_P_H

      #include "qxymodelmapper.h"

      #include <QObject>

      class QModelIndex;

      class QAbstractItemModel;

      class QPointF;

      QTCOMMERCIALCHART_BEGIN_NAMESPACE

      class QXYModelMapper;

      class QXYSeries;

      class QXYModelMapperPrivate : public QObject

      {

          Q_OBJECT

      public:

          QXYModelMapperPrivate(QXYModelMapper *q);

      public Q_SLOTS:

          // for the model

          void modelUpdated(QModelIndex topLeft, QModelIndex bottomRight);

          void modelRowsAdded(QModelIndex parent, int start, int end);

          void modelRowsRemoved(QModelIndex parent, int start, int end);

          void modelColumnsAdded(QModelIndex parent, int start, int end);

          void modelColumnsRemoved(QModelIndex parent, int start, int end);

        Marek Rosa
    
Model mappers now connected to series and model destroy signals

              r1656
            
          void handleModelDestroyed();

        Marek Rosa
    
XYModelMapper slots for model signals implemented

              r1256
            
          // for the series

          void handlePointAdded(int pointPos);

          void handlePointRemoved(int pointPos);

          void handlePointReplaced(int pointPos);

        Marek Rosa
    
Model mappers now connected to series and model destroy signals

              r1656
            
          void handleSeriesDestroyed();

        Marek Rosa
    
XYModelMapper slots for model signals implemented

              r1256
            
          void initializeXYFromModel();

      private:

          QModelIndex xModelIndex(int xPos);

          QModelIndex yModelIndex(int yPos);

          void insertData(int start, int end);

          void removeData(int start, int end);

          void blockModelSignals(bool block = true);

          void blockSeriesSignals(bool block = true);

      private:

          QXYSeries *m_series;

          QAbstractItemModel *m_model;

          int m_first;

          int m_count;

          Qt::Orientation m_orientation;

          int m_xSection;

          int m_ySection;

          bool m_seriesSignalsBlock;

          bool m_modelSignalsBlock;

      private:

          QXYModelMapper *q_ptr;

          Q_DECLARE_PUBLIC(QXYModelMapper)

      };

      QTCOMMERCIALCHART_END_NAMESPACE

      #endif // QXYMODELMAPPER_P_H

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Marek Rosa Added license text to mapper classes	r1355	/****************************************************************************
		**
		** Copyright (C) 2012 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.

Marek Rosa XYModelMapper slots for model signals implemented	r1256	#ifndef QXYMODELMAPPER_P_H
		#define QXYMODELMAPPER_P_H

		#include "qxymodelmapper.h"
		#include <QObject>

		class QModelIndex;
		class QAbstractItemModel;
		class QPointF;

		QTCOMMERCIALCHART_BEGIN_NAMESPACE

		class QXYModelMapper;
		class QXYSeries;

		class QXYModelMapperPrivate : public QObject
		{
		Q_OBJECT

		public:
		QXYModelMapperPrivate(QXYModelMapper *q);

		public Q_SLOTS:
		// for the model
		void modelUpdated(QModelIndex topLeft, QModelIndex bottomRight);
		void modelRowsAdded(QModelIndex parent, int start, int end);
		void modelRowsRemoved(QModelIndex parent, int start, int end);
		void modelColumnsAdded(QModelIndex parent, int start, int end);
		void modelColumnsRemoved(QModelIndex parent, int start, int end);
Marek Rosa Model mappers now connected to series and model destroy signals	r1656	void handleModelDestroyed();
Marek Rosa XYModelMapper slots for model signals implemented	r1256
		// for the series
		void handlePointAdded(int pointPos);
		void handlePointRemoved(int pointPos);
		void handlePointReplaced(int pointPos);
Marek Rosa Model mappers now connected to series and model destroy signals	r1656	void handleSeriesDestroyed();
Marek Rosa XYModelMapper slots for model signals implemented	r1256
		void initializeXYFromModel();

		private:
		QModelIndex xModelIndex(int xPos);
		QModelIndex yModelIndex(int yPos);
		void insertData(int start, int end);
		void removeData(int start, int end);
		void blockModelSignals(bool block = true);
		void blockSeriesSignals(bool block = true);

		private:
		QXYSeries *m_series;
		QAbstractItemModel *m_model;
		int m_first;
		int m_count;
		Qt::Orientation m_orientation;
		int m_xSection;
		int m_ySection;
		bool m_seriesSignalsBlock;
		bool m_modelSignalsBlock;

		private:
		QXYModelMapper *q_ptr;
		Q_DECLARE_PUBLIC(QXYModelMapper)
		};

		QTCOMMERCIALCHART_END_NAMESPACE

		#endif // QXYMODELMAPPER_P_H