HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · examples/piechartdrilldown/main.cpp

Add animations to pie. Works but has some visual issues when adding slices.

Jani Honkonen - - Load All Authors

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             main.cpp
        
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        Jani Honkonen
    
Add drilldown example for piechart

              r406
            
      #include <QtGui/QApplication>

      #include <QMainWindow>

      #include <qchartglobal.h>

      #include <qchartview.h>

      #include <qpieseries.h>

      #include <qpieslice.h>

      #include <QTime>

      QTCOMMERCIALCHART_USE_NAMESPACE

      class DrilldownSlice : public QPieSlice

      {

          Q_OBJECT

      public:

          DrilldownSlice(qreal value, QString prefix, QSeries* drilldownSeries)

              :m_drilldownSeries(drilldownSeries),

              m_prefix(prefix)

          {

              setValue(value);

              setLabelVisible(true);

              updateLabel();

              connect(this, SIGNAL(changed()), this, SLOT(updateLabel()));

          }

          QSeries* drilldownSeries() const { return m_drilldownSeries; }

      public Q_SLOTS:

          void updateLabel()

          {

              QString label = m_prefix;

        Jani Honkonen
    
Refactor piechartdrilldown example a bit

              r408
            
              label += " " + QString::number(this->value())+ "e (";

        Jani Honkonen
    
Add drilldown example for piechart

              r406
            
              label += QString::number(this->percentage()*100, 'f', 1) + "%)";

              setLabel(label);

          }

      private:

          QSeries* m_drilldownSeries;

          QString m_prefix;

      };

      class DrilldownChart : public QChartView

      {

          Q_OBJECT

      public:

          explicit DrilldownChart(QWidget *parent = 0):QChartView(parent), m_currentSeries(0) {}

          void changeSeries(QSeries* series)

          {

        Jani Honkonen
    
Fix piechartdrilldown bug. Chart was deleting the series from us.

              r617
            
              // NOTE: if the series is owned by the chart it will be deleted

              // here the "window" owns the series...

        Jani Honkonen
    
Add drilldown example for piechart

              r406
            
              if (m_currentSeries)

                  removeSeries(m_currentSeries);

              m_currentSeries = series;

              addSeries(series);

              setChartTitle(series->title());

          }

      public Q_SLOTS:

          void handleSliceClicked(QPieSlice* slice)

          {

              DrilldownSlice* drilldownSlice = static_cast<DrilldownSlice*>(slice);

              changeSeries(drilldownSlice->drilldownSeries());

          }

      private:

          QSeries* m_currentSeries;

      };

      int main(int argc, char *argv[])

      {

          QApplication a(argc, argv);

          qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));

          QMainWindow window;

          DrilldownChart* drilldownChart =  new DrilldownChart(&window);

          drilldownChart->setRenderHint(QPainter::Antialiasing);

          drilldownChart->setChartTheme(QChart::ChartThemeVanilla);

        Jani Honkonen
    
Fix piechartdrilldown bug. Chart was deleting the series from us.

              r617
            
          QPieSeries* yearSeries = new QPieSeries(&window);

        Jani Honkonen
    
Add drilldown example for piechart

              r406
            
          yearSeries->setTitle("Sales by year - All");

          QList<QString> months;

          months << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun" << "Jul" << "Aug" << "Sep" << "Oct" << "Nov" << "Dec";

        Jani Honkonen
    
Refactor piechartdrilldown example a bit

              r408
            
          QList<QString> names;

          names << "Jane" << "John" << "Axel" << "Mary" << "Samantha" << "Bob";

          foreach (QString name, names) {

        Jani Honkonen
    
Fix piechartdrilldown bug. Chart was deleting the series from us.

              r617
            
              QPieSeries* series = new QPieSeries(&window);

        Jani Honkonen
    
Refactor piechartdrilldown example a bit

              r408
            
              series->setTitle("Sales by month - " + name);

              foreach (QString month, months)

                  *series << new DrilldownSlice(qrand() % 1000, month, yearSeries);

              QObject::connect(series, SIGNAL(clicked(QPieSlice*)), drilldownChart, SLOT(handleSliceClicked(QPieSlice*)));

              *yearSeries << new DrilldownSlice(series->total(), name, series);

          }

        Jani Honkonen
    
Add drilldown example for piechart

              r406
            
          QObject::connect(yearSeries, SIGNAL(clicked(QPieSlice*)), drilldownChart, SLOT(handleSliceClicked(QPieSlice*)));

          drilldownChart->changeSeries(yearSeries);

          window.setCentralWidget(drilldownChart);

        Jani Honkonen
    
Fix piechartdrilldown bug. Chart was deleting the series from us.

              r617
            
          window.resize(800, 600);

        Jani Honkonen
    
Add drilldown example for piechart

              r406
            
          window.show();

          return a.exec();

      }

      #include "main.moc"

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Jani Honkonen Add drilldown example for piechart	r406	#include <QtGui/QApplication>
		#include <QMainWindow>
		#include <qchartglobal.h>
		#include <qchartview.h>
		#include <qpieseries.h>
		#include <qpieslice.h>
		#include <QTime>

		QTCOMMERCIALCHART_USE_NAMESPACE

		class DrilldownSlice : public QPieSlice
		{
		Q_OBJECT

		public:
		DrilldownSlice(qreal value, QString prefix, QSeries* drilldownSeries)
		:m_drilldownSeries(drilldownSeries),
		m_prefix(prefix)
		{
		setValue(value);
		setLabelVisible(true);
		updateLabel();
		connect(this, SIGNAL(changed()), this, SLOT(updateLabel()));
		}

		QSeries* drilldownSeries() const { return m_drilldownSeries; }

		public Q_SLOTS:
		void updateLabel()
		{
		QString label = m_prefix;
Jani Honkonen Refactor piechartdrilldown example a bit	r408	label += " " + QString::number(this->value())+ "e (";
Jani Honkonen Add drilldown example for piechart	r406	label += QString::number(this->percentage()*100, 'f', 1) + "%)";
		setLabel(label);
		}

		private:
		QSeries* m_drilldownSeries;
		QString m_prefix;
		};

		class DrilldownChart : public QChartView
		{
		Q_OBJECT
		public:
		explicit DrilldownChart(QWidget *parent = 0):QChartView(parent), m_currentSeries(0) {}

		void changeSeries(QSeries* series)
		{
Jani Honkonen Fix piechartdrilldown bug. Chart was deleting the series from us.	r617	// NOTE: if the series is owned by the chart it will be deleted
		// here the "window" owns the series...
Jani Honkonen Add drilldown example for piechart	r406	if (m_currentSeries)
		removeSeries(m_currentSeries);
		m_currentSeries = series;
		addSeries(series);
		setChartTitle(series->title());
		}

		public Q_SLOTS:
		void handleSliceClicked(QPieSlice* slice)
		{
		DrilldownSlice* drilldownSlice = static_cast<DrilldownSlice*>(slice);
		changeSeries(drilldownSlice->drilldownSeries());
		}

		private:
		QSeries* m_currentSeries;
		};

		int main(int argc, char *argv[])
		{
		QApplication a(argc, argv);

		qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));

		QMainWindow window;

		DrilldownChart* drilldownChart = new DrilldownChart(&window);
		drilldownChart->setRenderHint(QPainter::Antialiasing);
		drilldownChart->setChartTheme(QChart::ChartThemeVanilla);

Jani Honkonen Fix piechartdrilldown bug. Chart was deleting the series from us.	r617	QPieSeries* yearSeries = new QPieSeries(&window);
Jani Honkonen Add drilldown example for piechart	r406	yearSeries->setTitle("Sales by year - All");

		QList<QString> months;
		months << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun" << "Jul" << "Aug" << "Sep" << "Oct" << "Nov" << "Dec";
Jani Honkonen Refactor piechartdrilldown example a bit	r408	QList<QString> names;
		names << "Jane" << "John" << "Axel" << "Mary" << "Samantha" << "Bob";

		foreach (QString name, names) {
Jani Honkonen Fix piechartdrilldown bug. Chart was deleting the series from us.	r617	QPieSeries* series = new QPieSeries(&window);
Jani Honkonen Refactor piechartdrilldown example a bit	r408	series->setTitle("Sales by month - " + name);

		foreach (QString month, months)
		*series << new DrilldownSlice(qrand() % 1000, month, yearSeries);

		QObject::connect(series, SIGNAL(clicked(QPieSlice)), drilldownChart, SLOT(handleSliceClicked(QPieSlice)));

		*yearSeries << new DrilldownSlice(series->total(), name, series);
		}
Jani Honkonen Add drilldown example for piechart	r406
		QObject::connect(yearSeries, SIGNAL(clicked(QPieSlice)), drilldownChart, SLOT(handleSliceClicked(QPieSlice)));

		drilldownChart->changeSeries(yearSeries);

		window.setCentralWidget(drilldownChart);
Jani Honkonen Fix piechartdrilldown bug. Chart was deleting the series from us.	r617	window.resize(800, 600);
Jani Honkonen Add drilldown example for piechart	r406	window.show();

		return a.exec();
		}

		#include "main.moc"