Example usage for org.jfree.chart ChartPanel getEntityForPoint

Introduction

In this page you can find the example usage for org.jfree.chart ChartPanel getEntityForPoint.

Prototype

public ChartEntity getEntityForPoint(int viewX, int viewY) 

Source Link

Document

Returns the chart entity at a given point.

Usage

From source file:nextapp.echo.chart.testapp.testscreen.PieChartTest.java

public PieChartTest() {
    super(SplitPane.ORIENTATION_HORIZONTAL, new Extent(250, Extent.PX));
    setStyleName("DefaultResizable");

    ButtonColumn controlsColumn = new ButtonColumn();
    controlsColumn.setStyleName("TestControlsColumn");
    add(controlsColumn);/*www.j a va2s .  com*/

    DefaultKeyedValues values = new DefaultKeyedValues();
    values.addValue("Widgets", 500.2);
    values.addValue("Cubits", 216.0);
    values.addValue("Zonkits", 125.9);

    final DefaultPieDataset pieDataset = new DefaultPieDataset(new DefaultPieDataset(values));
    PiePlot piePlot = new PiePlot(pieDataset);
    piePlot.setToolTipGenerator(new StandardPieToolTipGenerator());

    final ChartDisplay chartDisplay = new ChartDisplay(piePlot);
    add(chartDisplay);

    chartDisplay.setActionCommands(new String[] { "Widgets", "Cubits", "Zonkits" });
    chartDisplay.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent arg0) {
            WindowPane window = new WindowPane("Chart series clicked", new Extent(300), new Extent(200));
            window.add(new Label("You clicked on " + arg0.getActionCommand()));
            Component contentPane = getParent();
            while (!(contentPane instanceof ContentPane)) {
                contentPane = contentPane.getParent();
            }
            contentPane.add(window);
        }
    });

    ChartPanel chartPanel = new ChartPanel(new JFreeChart(piePlot));
    chartPanel.setRefreshBuffer(true);
    ChartEntity entity = chartPanel.getEntityForPoint(50, 50);
    System.out.println("Entity: " + entity);

    controlsColumn.addButton("Set Width = 800px", new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            synchronized (chartDisplay) {
                chartDisplay.setWidth(new Extent(800));
            }
        }
    });

    controlsColumn.addButton("Set Width = null", new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            synchronized (chartDisplay) {
                chartDisplay.setWidth(null);
            }
        }
    });

    controlsColumn.addButton("Set Height = 600px", new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            synchronized (chartDisplay) {
                chartDisplay.setHeight(new Extent(600));
            }
        }
    });

    controlsColumn.addButton("Set Height = null", new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            synchronized (chartDisplay) {
                chartDisplay.setHeight(null);
            }
        }
    });

    controlsColumn.addButton("Update a Value", new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            synchronized (chartDisplay) {
                pieDataset.setValue("Cubits", Math.random() * 500);
            }
        }
    });
}

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From source file:jgnash.ui.report.compiled.IncomeExpensePieChart.java

private void setChartCursor(final ChartPanel chartPanel, final ChartEntity e, final Point point) {
    lastPoint = point;//www. j a v  a  2  s.c o  m

    EventQueue.invokeLater(new Runnable() {

        ChartEntity entity = e;

        @Override
        public void run() {
            if (entity == null && point != null) {
                entity = chartPanel.getEntityForPoint(lastPoint.x, lastPoint.y);
            }
            Account parent = currentAccount;
            if (entity instanceof PieSectionEntity) {
                // change cursor if section is interesting
                Account a = (Account) ((PieSectionEntity) entity).getSectionKey();
                if (a.getChildCount() > 0 && a != parent) {
                    chartPanel.setCursor(ZOOM_IN);
                } else {
                    chartPanel.setCursor(Cursor.getDefaultCursor());
                }
                return;
            } else if (entity == null && parent != null) {
                parent = parent.getParent();
                if (parent != null && !(parent instanceof RootAccount)) {
                    chartPanel.setCursor(ZOOM_OUT);
                    return;
                }
            }
            chartPanel.setCursor(Cursor.getDefaultCursor());
        }
    });
}

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