HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · example/stackedbarchartdrilldown/main.cpp

Documentation for stacked barchart drilldown example

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        sauimone
    
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      #include <QtGui/QApplication>

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      #include <QMainWindow>

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      #include <qchartglobal.h>

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      #include <qchartview.h>

      #include <qstackedbarseries.h>

      #include <qbarset.h>

      #include <qchartaxis.h>

      #include <QStringList>

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      #include <QDebug>

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      QTCOMMERCIALCHART_USE_NAMESPACE

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      //! [1]

      class DrilldownBarSeries : public QStackedBarSeries

      {

          Q_OBJECT

      public:

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          DrilldownBarSeries(QStringList categories, QObject *parent = 0) : QStackedBarSeries(categories,parent) {}

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          void mapDrilldownSeries(QString category, DrilldownBarSeries* drilldownSeries)

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          {

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              mDrilldownSeries[category] = drilldownSeries;

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          }

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          DrilldownBarSeries* drilldownSeries(QString category)

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          {

              return mDrilldownSeries[category];

          }

      public Q_SLOTS:

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      private:

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          QMap<QString, DrilldownBarSeries*> mDrilldownSeries;

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      };

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      //! [1]

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      //! [2]

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      class DrilldownChart : public QChartView

      {

          Q_OBJECT

      public:

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

          void changeSeries(QSeries* series)

          {

              if (m_currentSeries)

                  removeSeries(m_currentSeries);

              m_currentSeries = series;

              addSeries(series);

              setChartTitle(series->title());

          }

      public Q_SLOTS:

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          void handleRightClick(QBarSet *barset, QString category)

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          {

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      //        qDebug() << "DrilldownChart::handleRightClick" << barset->name() << category;

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              DrilldownBarSeries* series = static_cast<DrilldownBarSeries*> (sender());

              changeSeries(series->drilldownSeries(category));

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          }

      private:

          QSeries* m_currentSeries;

      };

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      //! [2]

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

      {

          QApplication a(argc, argv);

          QMainWindow window;

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          DrilldownChart* drilldownChart =  new DrilldownChart(&window);

          drilldownChart->setChartTheme(QChart::ChartThemeIcy);

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          //! [3]

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          // Define categories

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          QStringList months;

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          months << "May" << "Jun" << "Jul" << "Aug" << "Sep";

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          QStringList weeks;

          weeks << "week 1" << "week 2" << "week 3" << "week 4";

          QStringList plants;

          plants << "Habanero" << "Lemon Drop" << "Starfish" << "Aji Amarillo";

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          //! [3]

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          //! [4]

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          // Create drilldown structure

          DrilldownBarSeries* seasonSeries = new DrilldownBarSeries(months, drilldownChart);

          seasonSeries->setTitle("Crop by month - Season");

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          // Each month in season series has drilldown series for weekly data

          foreach (QString month, months) {

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              // Create drilldown series for every week

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              DrilldownBarSeries* weeklySeries = new DrilldownBarSeries(weeks, drilldownChart);

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              seasonSeries->mapDrilldownSeries(month, weeklySeries);

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              // Drilling down from weekly data brings us back to season data.

              foreach (QString week, weeks) {

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                  weeklySeries->mapDrilldownSeries(week, seasonSeries);

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                  weeklySeries->setTitle(QString("Crop by week - " + month));

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              }

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              // Use right click signal to implement drilldown

              QObject::connect(weeklySeries,SIGNAL(rightClicked(QBarSet*,QString)),drilldownChart,SLOT(handleRightClick(QBarSet*,QString)));

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          }

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          // Enable drilldown from season series using right click.

          QObject::connect(seasonSeries,SIGNAL(rightClicked(QBarSet*,QString)),drilldownChart,SLOT(handleRightClick(QBarSet*,QString)));

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          //! [4]

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          //! [5]

          // Fill monthly and weekly series with data

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          foreach (QString plant, plants) {

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              QBarSet* monthlyCrop = new QBarSet(plant);

              foreach (QString month, months) {

                  QBarSet* weeklyCrop = new QBarSet(plant);

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                  foreach (QString week, weeks ) {

                      *weeklyCrop << (qrand() % 20);

                  }

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                  // Get the drilldown series from season series and add crop to it.

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                  seasonSeries->drilldownSeries(month)->addBarSet(weeklyCrop);

                  seasonSeries->drilldownSeries(month)->setToolTipEnabled(true);

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                  *monthlyCrop << weeklyCrop->total();

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                  QObject::connect(weeklyCrop,SIGNAL(clicked(QString)),weeklyCrop,SIGNAL(toggleFloatingValues()));

              }

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              seasonSeries->addBarSet(monthlyCrop);

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              QObject::connect(monthlyCrop,SIGNAL(clicked(QString)),monthlyCrop,SIGNAL(toggleFloatingValues()));

          }

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          //! [5]

          seasonSeries->setToolTipEnabled(true);

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          //! [6]

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          // Show season series in initial view

          drilldownChart->changeSeries(seasonSeries);

          drilldownChart->setChartTitle(seasonSeries->title());

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          //! [6]

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          // Disable axis, since they don't really apply to bar chart

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          drilldownChart->axisX()->setAxisVisible(false);

          drilldownChart->axisX()->setGridVisible(false);

          drilldownChart->axisX()->setLabelsVisible(false);

          window.setCentralWidget(drilldownChart);

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          window.resize(400, 300);

          window.show();

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          return a.exec();

      }

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      #include "main.moc"

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sauimone Drilldown example for barcharts continuing. Still some bugs	r430	#include <QtGui/QApplication>
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425	#include <QMainWindow>
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	#include <qchartglobal.h>
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425	#include <qchartview.h>
		#include <qstackedbarseries.h>
		#include <qbarset.h>
		#include <qchartaxis.h>
		#include <QStringList>
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	#include <QDebug>
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425
		QTCOMMERCIALCHART_USE_NAMESPACE

sauimone Drilldown example for barcharts continuing. Still some bugs	r430	//! [1]
		class DrilldownBarSeries : public QStackedBarSeries
		{
		Q_OBJECT
		public:
sauimone Drilldown example using stacked barchart.	r449	DrilldownBarSeries(QStringList categories, QObject *parent = 0) : QStackedBarSeries(categories,parent) {}
sauimone updating drilldown example. Needs some more thinking	r438
sauimone Documentation for stacked barchart drilldown example	r462	void mapDrilldownSeries(QString category, DrilldownBarSeries* drilldownSeries)
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	{
sauimone Drilldown example using stacked barchart.	r449	mDrilldownSeries[category] = drilldownSeries;
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	}
sauimone updating drilldown example. Needs some more thinking	r438
		DrilldownBarSeries* drilldownSeries(QString category)
sauimone Drilldown example using stacked barchart.	r449	{
		return mDrilldownSeries[category];
		}

		public Q_SLOTS:
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
		private:
sauimone Drilldown example using stacked barchart.	r449
		QMap<QString, DrilldownBarSeries*> mDrilldownSeries;
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	};
sauimone Drilldown example using stacked barchart.	r449	//! [1]
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
sauimone Drilldown example using stacked barchart.	r449	//! [2]
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	class DrilldownChart : public QChartView
		{
		Q_OBJECT
		public:
		explicit DrilldownChart(QWidget *parent = 0) : QChartView(parent), m_currentSeries(0) {}

		void changeSeries(QSeries* series)
		{
		if (m_currentSeries)
		removeSeries(m_currentSeries);
		m_currentSeries = series;
		addSeries(series);
		setChartTitle(series->title());
		}

		public Q_SLOTS:
sauimone Documentation for stacked barchart drilldown example	r462	void handleRightClick(QBarSet *barset, QString category)
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	{
sauimone Documentation for stacked barchart drilldown example	r462	// qDebug() << "DrilldownChart::handleRightClick" << barset->name() << category;
sauimone Drilldown example using stacked barchart.	r449	DrilldownBarSeries* series = static_cast<DrilldownBarSeries*> (sender());
		changeSeries(series->drilldownSeries(category));
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	}

		private:
		QSeries* m_currentSeries;
		};
sauimone Drilldown example using stacked barchart.	r449	//! [2]
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425	int main(int argc, char *argv[])
		{
		QApplication a(argc, argv);
		QMainWindow window;

sauimone Drilldown example for barcharts continuing. Still some bugs	r430	DrilldownChart* drilldownChart = new DrilldownChart(&window);
		drilldownChart->setChartTheme(QChart::ChartThemeIcy);

sauimone Drilldown example using stacked barchart.	r449	//! [3]
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425	// Define categories
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	QStringList months;
sauimone Documentation for stacked barchart drilldown example	r462	months << "May" << "Jun" << "Jul" << "Aug" << "Sep";
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	QStringList weeks;
		weeks << "week 1" << "week 2" << "week 3" << "week 4";
		QStringList plants;
		plants << "Habanero" << "Lemon Drop" << "Starfish" << "Aji Amarillo";
sauimone Drilldown example using stacked barchart.	r449	//! [3]

sauimone updating drilldown example. Needs some more thinking	r438	//! [4]
sauimone Drilldown example using stacked barchart.	r449	// Create drilldown structure
		DrilldownBarSeries* seasonSeries = new DrilldownBarSeries(months, drilldownChart);
		seasonSeries->setTitle("Crop by month - Season");
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425
sauimone Drilldown example using stacked barchart.	r449	// Each month in season series has drilldown series for weekly data
		foreach (QString month, months) {
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
sauimone Drilldown example using stacked barchart.	r449	// Create drilldown series for every week
sauimone updating drilldown example. Needs some more thinking	r438	DrilldownBarSeries* weeklySeries = new DrilldownBarSeries(weeks, drilldownChart);
sauimone Documentation for stacked barchart drilldown example	r462	seasonSeries->mapDrilldownSeries(month, weeklySeries);
sauimone updating drilldown example. Needs some more thinking	r438
sauimone Drilldown example using stacked barchart.	r449	// Drilling down from weekly data brings us back to season data.
		foreach (QString week, weeks) {
sauimone Documentation for stacked barchart drilldown example	r462	weeklySeries->mapDrilldownSeries(week, seasonSeries);
sauimone Drilldown example using stacked barchart.	r449	weeklySeries->setTitle(QString("Crop by week - " + month));
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	}

sauimone Drilldown example using stacked barchart.	r449	// Use right click signal to implement drilldown
		QObject::connect(weeklySeries,SIGNAL(rightClicked(QBarSet,QString)),drilldownChart,SLOT(handleRightClick(QBarSet,QString)));
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	}
sauimone Documentation for stacked barchart drilldown example	r462
		// Enable drilldown from season series using right click.
		QObject::connect(seasonSeries,SIGNAL(rightClicked(QBarSet,QString)),drilldownChart,SLOT(handleRightClick(QBarSet,QString)));
sauimone Drilldown example using stacked barchart.	r449	//! [4]
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
sauimone Drilldown example using stacked barchart.	r449	//! [5]
		// Fill monthly and weekly series with data
sauimone updating drilldown example. Needs some more thinking	r438	foreach (QString plant, plants) {
sauimone Drilldown example using stacked barchart.	r449	QBarSet* monthlyCrop = new QBarSet(plant);
		foreach (QString month, months) {
		QBarSet* weeklyCrop = new QBarSet(plant);
sauimone updating drilldown example. Needs some more thinking	r438	foreach (QString week, weeks ) {
		*weeklyCrop << (qrand() % 20);
		}
sauimone Documentation for stacked barchart drilldown example	r462	// Get the drilldown series from season series and add crop to it.
sauimone Drilldown example using stacked barchart.	r449	seasonSeries->drilldownSeries(month)->addBarSet(weeklyCrop);
		seasonSeries->drilldownSeries(month)->setToolTipEnabled(true);
sauimone updating drilldown example. Needs some more thinking	r438	*monthlyCrop << weeklyCrop->total();
sauimone Drilldown example using stacked barchart.	r449
sauimone updating drilldown example. Needs some more thinking	r438	QObject::connect(weeklyCrop,SIGNAL(clicked(QString)),weeklyCrop,SIGNAL(toggleFloatingValues()));
		}
sauimone Drilldown example using stacked barchart.	r449	seasonSeries->addBarSet(monthlyCrop);
sauimone updating drilldown example. Needs some more thinking	r438	QObject::connect(monthlyCrop,SIGNAL(clicked(QString)),monthlyCrop,SIGNAL(toggleFloatingValues()));
		}
sauimone Drilldown example using stacked barchart.	r449	//! [5]

		seasonSeries->setToolTipEnabled(true);

sauimone Documentation for stacked barchart drilldown example	r462	//! [6]
sauimone Drilldown example using stacked barchart.	r449	// Show season series in initial view
		drilldownChart->changeSeries(seasonSeries);
		drilldownChart->setChartTitle(seasonSeries->title());
sauimone Documentation for stacked barchart drilldown example	r462	//! [6]
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
sauimone Drilldown example using stacked barchart.	r449	// Disable axis, since they don't really apply to bar chart
sauimone Drilldown example for barcharts continuing. Still some bugs	r430	drilldownChart->axisX()->setAxisVisible(false);
		drilldownChart->axisX()->setGridVisible(false);
		drilldownChart->axisX()->setLabelsVisible(false);

		window.setCentralWidget(drilldownChart);
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425	window.resize(400, 300);
		window.show();
sauimone Drilldown example for barcharts continuing. Still some bugs	r430
sauimone Better way to enable features to user. Do less, but expose signals to user and allow user to descide what to do.	r425	return a.exec();
		}

sauimone Drilldown example for barcharts continuing. Still some bugs	r430	#include "main.moc"