/** Makes the chart show category labels or not. */
private void updateCategories() {
if (chart != null) {
IAxisSet axisSet = chart.getAxisSet();
if (axisSet != null) {
IAxis xAxis = axisSet.getXAxis(0);
if (xAxis != null) {
String[] series = xAxis.getCategorySeries();
if (series != null) {
boolean enoughSpace =
chart.getPlotArea().getSize().x / series.length >= MIN_CATEGORY_WIDTH;
xAxis.enableCategory(enoughSpace);
xAxis.getTick().setVisible(enoughSpace);
}
}
}
}
}
@Override
protected Composite createBody(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
chart = new ScatterChart(composite);
chart.getTitle().setText(getTitle());
chart.getTitle().setVisible(false);
IAxis xAxis = chart.getAxisSet().getXAxis(0);
xAxis.getTitle().setText(Messages.LabelVolatility);
xAxis.getTick().setFormat(new DecimalFormat("0.##%")); // $NON-NLS-1$
IAxis yAxis = chart.getAxisSet().getYAxis(0);
yAxis.getTitle().setText(Messages.LabelPeformanceTTWROR);
yAxis.getTick().setFormat(new DecimalFormat("0.##%")); // $NON-NLS-1$
((IPlotArea) chart.getPlotArea())
.addCustomPaintListener(
new ICustomPaintListener() {
@Override
public void paintControl(PaintEvent e) {
int y = xAxis.getPixelCoordinate(0);
e.gc.drawLine(y, 0, y, e.height);
int x = yAxis.getPixelCoordinate(0);
e.gc.drawLine(0, x, e.width, x);
}
@Override
public boolean drawBehindSeries() {
return true;
}
});
picker = new ChartConfigurator(composite, this, ChartConfigurator.Mode.RETURN_VOLATILITY);
picker.setListener(() -> updateChart());
GridLayoutFactory.fillDefaults().numColumns(1).margins(0, 0).spacing(0, 0).applyTo(composite);
GridDataFactory.fillDefaults().grab(true, true).applyTo(chart);
GridDataFactory.fillDefaults().grab(true, false).align(SWT.CENTER, SWT.FILL).applyTo(picker);
setChartSeries();
return composite;
}
private void showData(List<IStoreItem> res) {
Iterator<IStoreItem> iter = res.iterator();
// clear the graph
ISeries[] coll = chart.getSeriesSet().getSeries();
for (int i = 0; i < coll.length; i++) {
ISeries iSeries = coll[i];
chart.getSeriesSet().deleteSeries(iSeries.getId());
}
while (iter.hasNext()) {
ICollection iCollection = (ICollection) iter.next();
TimeFrequencyBins.BinnedData bins = null;
if (iCollection.isTemporal()) {
if (iCollection.size() > 1) {
if (iCollection.size() <= MAX_SIZE) {
IBaseTemporalCollection thisQ = (IBaseTemporalCollection) iCollection;
bins = TimeFrequencyBins.doBins(iCollection, thisQ);
String seriesName = iCollection.getName();
ILineSeries newSeries =
(ILineSeries) chart.getSeriesSet().createSeries(SeriesType.LINE, seriesName);
newSeries.setSymbolType(PlotSymbolType.NONE);
newSeries.enableArea(true);
newSeries.setLineColor(PlottingHelpers.colorFor(seriesName));
Date[] xData = new Date[bins.size() * 2];
double[] yData = new double[bins.size() * 2];
// put the data into series
int ctr = 0;
Iterator<Bin> iter2 = bins.iterator();
while (iter2.hasNext()) {
Bin bin = (TimeFrequencyBins.Bin) iter2.next();
xData[ctr] = new Date(bin.lowerVal);
yData[ctr++] = bin.freqVal;
xData[ctr] = new Date(bin.upperVal);
yData[ctr++] = bin.freqVal;
}
newSeries.setXDateSeries(xData);
newSeries.setYSeries(yData);
newSeries.enableStack(true);
newSeries.enableArea(true);
// adjust the axis range
chart.getAxisSet().adjustRange();
IAxis xAxis = chart.getAxisSet().getXAxis(0);
xAxis.enableCategory(false);
// set the y axis min to be zero
Range yRange = chart.getAxisSet().getYAxis(0).getRange();
chart.getAxisSet().getYAxis(0).setRange(new Range(0, yRange.upper));
chart.redraw();
}
}
}
}
}
/** Resets the chart */
private void resetChart() {
if (chart != null) {
chart.dispose();
}
chart = new Chart(root, SWT.NONE);
chart.setOrientation(SWT.HORIZONTAL);
// Show/Hide axis
chart.addControlListener(
new ControlAdapter() {
@Override
public void controlResized(ControlEvent arg0) {
updateCategories();
}
});
// TODO: Seems to not work on GTK although it did before
chart
.getPlotArea()
.addListener(
SWT.MouseMove,
new Listener() {
@Override
public void handleEvent(Event event) {
IAxisSet axisSet = chart.getAxisSet();
StringBuilder builder = new StringBuilder();
if (axisSet != null) {
IAxis xAxis = axisSet.getXAxis(0);
if (xAxis != null) {
String[] series = xAxis.getCategorySeries();
ISeries[] data = chart.getSeriesSet().getSeries();
int x = (int) Math.round(xAxis.getDataCoordinate(event.x));
if (x >= 0 && x < series.length) {
for (int i = 0; i < data.length; i++) {
ISeries yseries = data[i];
builder.append(yseries.getId());
builder.append("("); // $NON-NLS-1$
builder.append(series[x]);
builder.append(", "); // $NON-NLS-1$
builder.append(yseries.getYSeries()[x]);
builder.append(")"); // $NON-NLS-1$
if (i < data.length - 1) {
builder.append(", "); // $NON-NLS-1$
}
}
}
}
}
if (builder.length() != 0) {
chart.getPlotArea().setToolTipText(builder.toString());
} else {
chart.getPlotArea().setToolTipText(null);
}
}
});
// Update font
FontData[] fd = chart.getFont().getFontData();
fd[0].setHeight(8);
final Font font = new Font(chart.getDisplay(), fd[0]);
chart.setFont(font);
chart.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent arg0) {
if (font != null && !font.isDisposed()) {
font.dispose();
}
}
});
// Update title
ITitle graphTitle = chart.getTitle();
graphTitle.setText(""); // $NON-NLS-1$
graphTitle.setFont(chart.getFont());
// Set colors
chart.setBackground(root.getBackground());
chart.setForeground(root.getForeground());
// OSX workaround
if (System.getProperty("os.name").toLowerCase().contains("mac")) { // $NON-NLS-1$ //$NON-NLS-2$
int r = chart.getBackground().getRed() - 13;
int g = chart.getBackground().getGreen() - 13;
int b = chart.getBackground().getBlue() - 13;
r = r > 0 ? r : 0;
r = g > 0 ? g : 0;
r = b > 0 ? b : 0;
final Color background = new Color(chart.getDisplay(), r, g, b);
chart.setBackground(background);
chart.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent arg0) {
if (background != null && !background.isDisposed()) {
background.dispose();
}
}
});
}
// Initialize axes
IAxisSet axisSet = chart.getAxisSet();
IAxis yAxis = axisSet.getYAxis(0);
IAxis xAxis = axisSet.getXAxis(0);
ITitle xAxisTitle = xAxis.getTitle();
xAxisTitle.setText(""); // $NON-NLS-1$
xAxis.getTitle().setFont(chart.getFont());
yAxis.getTitle().setFont(chart.getFont());
xAxis.getTick().setFont(chart.getFont());
yAxis.getTick().setFont(chart.getFont());
xAxis.getTick().setForeground(chart.getForeground());
yAxis.getTick().setForeground(chart.getForeground());
xAxis.getTitle().setForeground(chart.getForeground());
yAxis.getTitle().setForeground(chart.getForeground());
// Initialize y-axis
ITitle yAxisTitle = yAxis.getTitle();
yAxisTitle.setText(Resources.getMessage("ViewRisksPlotUniquenessEstimates.0")); // $NON-NLS-1$
chart.setEnabled(false);
updateCategories();
}
