HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · examples/splinechart/splinewidget.cpp

Legend can handle removing of series

Michal Klocek - - Load All Authors

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             splinewidget.cpp
        
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             / examples / splinechart / splinewidget.cpp
          
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        Marek Rosa
    
Spline working somewhat

              r401
            
      #include "splinewidget.h"

      #include "qchartview.h"

        Marek Rosa
    
Spline with problems

              r419
            
      #include "qlineseries.h"

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              r401
            
      #include <QGridLayout>

        Marek Rosa
    
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              r431
            
      #include <QPushButton>

        Marek Rosa
    
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              r434
            
      #include "qchartaxis.h"

      #include <qmath.h>

        Marek Rosa
    
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      QTCOMMERCIALCHART_USE_NAMESPACE

      SplineWidget::SplineWidget(QWidget *parent)

          : QWidget(parent)

      {

        Marek Rosa
    
Minor cleanup

              r457
            
      //    qsrand(time(NULL));

        Marek Rosa
    
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          //! [1]

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          //create QSplineSeries

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          series = new QSplineSeries;

        Marek Rosa
    
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              r434
            
          //! [1]

          //! [2]

          // customize the series presentation settings

          QPen seriesPen(Qt::blue);

          seriesPen.setWidth(3);

          series->setPen(seriesPen);

          //! [2]

          //! [add points to series]

          //add data points to the series

        Marek Rosa
    
Added automatic refresh of control points on add/remove point. Spline example updated

              r431
            
          series->add(QPointF(150, 100));

          series->add(QPointF(200, 130));

          series->add(QPointF(250, 120));

          series->add(QPointF(300, 140));

        Marek Rosa
    
Spline chart example added

              r434
            
          series->add(QPointF(350, 160));

          //! [add points to series]

      //    series->add(QPointF(400, 120));

      //    series->add(QPointF(450, 150));

      //    series->add(QPointF(500, 145));

      //    series->add(QPointF(550, 170));

      //    series->add(QPointF(600, 190));

      //    series->add(QPointF(650, 210));

      //    series->add(QPointF(700, 190));

      //    series->add(QPointF(750, 180));

      //    series->add(QPointF(800, 170));

        Marek Rosa
    
Spline working somewhat

              r401
            
        Marek Rosa
    
Spline chart example added

              r434
            
          //! [3]

          // create chart view

          QChartView* chart = new QChartView;

          chart->addSeries(series);

        Marek Rosa
    
Spline working somewhat

              r401
            
        Marek Rosa
    
Spline series fix

              r450
            
          chart->setChartTitle("Spline chart example");

        Marek Rosa
    
Renamed SplinePresenter to SplineChartItem

              r460
            
          chart->axisX()->setMax(1500);

          chart->axisY()->setMax(500);

        Marek Rosa
    
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              r401
            
          chart->setMinimumSize(800,600);

        Marek Rosa
    
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              r434
            
          //! [3]

        Marek Rosa
    
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              r431
            
        Marek Rosa
    
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              r434
            
          //! [4]

          //add new data point button

        Marek Rosa
    
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              r431
            
          QPushButton* addButton = new QPushButton("Add new point");

          connect(addButton, SIGNAL(clicked()), this, SLOT(addNewPoint()));

        Marek Rosa
    
Spline chart example added

              r434
            
          // remove the last data point in the series

          QPushButton* removeButton = new QPushButton("Remove point");

        Marek Rosa
    
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              r431
            
          connect(removeButton, SIGNAL(clicked()), this, SLOT(removePoint()));

        Marek Rosa
    
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              r434
            
          //! [4]

        Marek Rosa
    
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              r431
            
        Marek Rosa
    
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              r434
            
          //! [5]

        Marek Rosa
    
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              r431
            
          //butttons layout

          QVBoxLayout* buttonsLayout = new QVBoxLayout;

          buttonsLayout->addWidget(addButton);

          buttonsLayout->addWidget(removeButton);

          buttonsLayout->addStretch();

        Marek Rosa
    
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              r401
            
          QGridLayout* mainLayout = new QGridLayout;

        Marek Rosa
    
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              r431
            
          mainLayout->addWidget(chart, 1, 0);

          mainLayout->addLayout(buttonsLayout, 1, 1);

        Marek Rosa
    
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              r401
            
          setLayout(mainLayout);

        Marek Rosa
    
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              r434
            
          //! [5]

        Marek Rosa
    
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              r401
            
      }

        Marek Rosa
    
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              r434
            
      //! [add point]

        Marek Rosa
    
Added automatic refresh of control points on add/remove point. Spline example updated

              r431
            
      void SplineWidget::addNewPoint()

      {

          if (series->count() > 0)

        Marek Rosa
    
Renamed SplinePresenter to SplineChartItem

              r460
            
              series->add(QPointF(series->x(series->count() - 1) + 40 + qrand()%40, qAbs(series->y(series->count() - 1) - 50 + qrand()%100)));

        Marek Rosa
    
Added automatic refresh of control points on add/remove point. Spline example updated

              r431
            
          else

              series->add(QPointF(50, 50 + qrand()%50));

      }

        Marek Rosa
    
Spline chart example added

              r434
            
      //! [add point]

        Marek Rosa
    
Added automatic refresh of control points on add/remove point. Spline example updated

              r431
            
        Marek Rosa
    
Spline chart example added

              r434
            
      //! [remove point]

        Marek Rosa
    
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              r431
            
      void SplineWidget::removePoint()

      {

          if (series->count() > 0)

              series->remove(QPointF(series->x(series->count() - 1), series->y(series->count() - 1)));

      }

        Marek Rosa
    
Spline chart example added

              r434
            
      //! [remove point]

        Marek Rosa
    
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              r431
            
        Marek Rosa
    
Spline working somewhat

              r401
            
      SplineWidget::~SplineWidget()

      {

      }

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Marek Rosa Spline working somewhat	r401	#include "splinewidget.h"
		#include "qchartview.h"
Marek Rosa Spline with problems	r419	#include "qlineseries.h"
Marek Rosa Spline working somewhat	r401	#include <QGridLayout>
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	#include <QPushButton>
Marek Rosa Spline chart example added	r434	#include "qchartaxis.h"
		#include <qmath.h>
Marek Rosa Spline working somewhat	r401
		QTCOMMERCIALCHART_USE_NAMESPACE

		SplineWidget::SplineWidget(QWidget *parent)
		: QWidget(parent)
		{
Marek Rosa Minor cleanup	r457	// qsrand(time(NULL));
Marek Rosa Spline chart example added	r434	//! [1]
Marek Rosa Spline working somewhat	r401	//create QSplineSeries
Marek Rosa Spline series fix	r450	series = new QSplineSeries;
Marek Rosa Spline chart example added	r434	//! [1]

		//! [2]
		// customize the series presentation settings
		QPen seriesPen(Qt::blue);
		seriesPen.setWidth(3);
		series->setPen(seriesPen);
		//! [2]

		//! [add points to series]
		//add data points to the series
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	series->add(QPointF(150, 100));
		series->add(QPointF(200, 130));
		series->add(QPointF(250, 120));
		series->add(QPointF(300, 140));
Marek Rosa Spline chart example added	r434	series->add(QPointF(350, 160));
		//! [add points to series]
		// series->add(QPointF(400, 120));
		// series->add(QPointF(450, 150));
		// series->add(QPointF(500, 145));
		// series->add(QPointF(550, 170));
		// series->add(QPointF(600, 190));
		// series->add(QPointF(650, 210));
		// series->add(QPointF(700, 190));
		// series->add(QPointF(750, 180));
		// series->add(QPointF(800, 170));
Marek Rosa Spline working somewhat	r401
Marek Rosa Spline chart example added	r434	//! [3]
		// create chart view
		QChartView* chart = new QChartView;
		chart->addSeries(series);
Marek Rosa Spline working somewhat	r401
Marek Rosa Spline series fix	r450	chart->setChartTitle("Spline chart example");
Marek Rosa Renamed SplinePresenter to SplineChartItem	r460	chart->axisX()->setMax(1500);
		chart->axisY()->setMax(500);
Marek Rosa Spline working somewhat	r401
		chart->setMinimumSize(800,600);
Marek Rosa Spline chart example added	r434	//! [3]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431
Marek Rosa Spline chart example added	r434	//! [4]
		//add new data point button
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	QPushButton* addButton = new QPushButton("Add new point");
		connect(addButton, SIGNAL(clicked()), this, SLOT(addNewPoint()));

Marek Rosa Spline chart example added	r434	// remove the last data point in the series
		QPushButton* removeButton = new QPushButton("Remove point");
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	connect(removeButton, SIGNAL(clicked()), this, SLOT(removePoint()));
Marek Rosa Spline chart example added	r434	//! [4]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431
Marek Rosa Spline chart example added	r434	//! [5]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	//butttons layout
		QVBoxLayout* buttonsLayout = new QVBoxLayout;
		buttonsLayout->addWidget(addButton);
		buttonsLayout->addWidget(removeButton);
		buttonsLayout->addStretch();
Marek Rosa Spline working somewhat	r401
		QGridLayout* mainLayout = new QGridLayout;
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	mainLayout->addWidget(chart, 1, 0);
		mainLayout->addLayout(buttonsLayout, 1, 1);
Marek Rosa Spline working somewhat	r401	setLayout(mainLayout);
Marek Rosa Spline chart example added	r434	//! [5]
Marek Rosa Spline working somewhat	r401	}

Marek Rosa Spline chart example added	r434	//! [add point]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	void SplineWidget::addNewPoint()
		{
		if (series->count() > 0)
Marek Rosa Renamed SplinePresenter to SplineChartItem	r460	series->add(QPointF(series->x(series->count() - 1) + 40 + qrand()%40, qAbs(series->y(series->count() - 1) - 50 + qrand()%100)));
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	else
		series->add(QPointF(50, 50 + qrand()%50));
		}
Marek Rosa Spline chart example added	r434	//! [add point]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431
Marek Rosa Spline chart example added	r434	//! [remove point]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431	void SplineWidget::removePoint()
		{
		if (series->count() > 0)
		series->remove(QPointF(series->x(series->count() - 1), series->y(series->count() - 1)));
		}
Marek Rosa Spline chart example added	r434	//! [remove point]
Marek Rosa Added automatic refresh of control points on add/remove point. Spline example updated	r431
Marek Rosa Spline working somewhat	r401	SplineWidget::~SplineWidget()
		{

		}