Examples with IAxis org.eclipse.swtchart.IAxis used on opensource projects

Example 61 with IAxis

use of org.eclipse.swtchart.IAxis in project tracecompass by tracecompass.

the class SwtBarChart method refreshDisplayLabels.

@Override
protected void refreshDisplayLabels() {
    String @Nullable [] categories = fCategories;
    /* Only if we have at least 1 category */
    if (categories == null || categories.length == 0) {
        return;
    }
    /* Only refresh if labels are visible */
    IAxis xAxis = getChart().getAxisSet().getXAxis(0);
    if (!xAxis.getTick().isVisible() || !xAxis.isCategoryEnabled()) {
        return;
    }
    /*
         * Shorten all the labels to 5 characters plus "…" when the longest
         * label length is more than a percentage of the chart height.
         */
    Rectangle rect = getChart().getClientArea();
    int lengthLimit = (int) (rect.height * LENGTH_LIMIT);
    GC gc = new GC(getParent());
    gc.setFont(xAxis.getTick().getFont());
    /* Find the longest category string */
    String longestString = Arrays.stream(categories).max(Comparator.comparingInt(String::length)).orElse(categories[0]);
    /* Get the length and height of the longest label in pixels */
    Point pixels = gc.stringExtent(longestString);
    /* Completely arbitrary */
    int cutLen = 5;
    String[] displayCategories = new String[categories.length];
    if (pixels.x > lengthLimit) {
        /* We have to cut down some strings */
        for (int i = 0; i < categories.length; i++) {
            if (categories[i].length() > cutLen) {
                displayCategories[i] = categories[i].substring(0, cutLen) + ELLIPSIS;
            } else {
                displayCategories[i] = categories[i];
            }
        }
    } else {
        /* All strings should fit */
        displayCategories = Arrays.copyOf(categories, categories.length);
    }
    xAxis.setCategorySeries(displayCategories);
    /* Cleanup */
    gc.dispose();
}

Example 62 with IAxis

use of org.eclipse.swtchart.IAxis in project tracecompass by tracecompass.

the class SwtScatterChart method refreshDisplayLabels.

@Override
protected void refreshDisplayLabels() {
    /**
     * TODO: support for the Y axis too
     */
    /* Only refresh if labels are visible */
    Chart chart = getChart();
    IAxisSet axisSet = chart.getAxisSet();
    IAxis xAxis = axisSet.getXAxis(0);
    if (!xAxis.getTick().isVisible()) {
        return;
    }
    /*
         * Shorten all the labels to 5 characters plus "…" when the longest
         * label length is more than 50% of the chart height.
         */
    Rectangle rect = chart.getClientArea();
    int lengthLimit = (int) (rect.height * 0.40);
    GC gc = new GC(getParent());
    gc.setFont(xAxis.getTick().getFont());
    // labels.
    if (!fXStringMap.isEmpty()) {
        /* Find the longest category string */
        String longestString = Collections.max(fXStringMap.keySet(), Comparator.comparingInt(String::length));
        /* Get the length and height of the longest label in pixels */
        Point pixels = gc.stringExtent(longestString);
        /* Completely arbitrary */
        int cutLen = 5;
        if (pixels.x > lengthLimit) {
            /* We have to cut down some strings */
            for (Entry<String, Integer> entry : fXStringMap.entrySet()) {
                String reference = checkNotNull(entry.getKey());
                if (reference.length() > cutLen) {
                    String key = reference.substring(0, cutLen) + ELLIPSIS;
                    fVisibleXMap.remove(reference);
                    fVisibleXMap.put(key, entry.getValue());
                } else {
                    fVisibleXMap.inverse().remove(entry.getValue());
                    fVisibleXMap.put(reference, entry.getValue());
                }
            }
        } else {
            /* All strings should fit */
            resetBiMap(fXStringMap, fVisibleXMap);
        }
        for (IAxis axis : axisSet.getXAxes()) {
            IAxisTick tick = axis.getTick();
            tick.setFormat(new LabelFormat(fVisibleXMap));
        }
    }
    /* Cleanup */
    gc.dispose();
}

Example 63 with IAxis

use of org.eclipse.swtchart.IAxis in project tracecompass by tracecompass.

the class SwtXYChartViewer method populate.

/**
 * This method is called after the constructor by the factory constructor.
 * While everything could be put in the constructor directly, splitting the
 * constructor simply makes the code cleaner by reducing the number of null
 * checks.
 */
protected final void populate() {
    /* Create the consumer for the data */
    XYChartConsumer chartConsumer = createChartConsumer();
    fChartConsumer = chartConsumer;
    /* Process all the objects from the stream of data */
    fData.getDataProvider().getSource().forEach(chartConsumer::accept);
    chartConsumer.finish();
    /* Create the SWT series */
    createChartSeries();
    configureSeries(fObjectMap);
    /* Adjust the chart range */
    getChart().getAxisSet().adjustRange();
    /* Configure axes */
    configureAxes();
    Arrays.stream(getChart().getAxisSet().getXAxes()).forEach(a -> a.enableLogScale(getModel().isXLogscale()));
    Arrays.stream(getChart().getAxisSet().getYAxes()).forEach(a -> a.enableLogScale(getModel().isYLogscale()));
    for (IAxis yAxis : getChart().getAxisSet().getYAxes()) {
        /*
             * SWTChart workaround: SWTChart fiddles with tick mark visibility
             * based on the fact that it can parse the label to double or not.
             *
             * If the label happens to be a double, it checks for the presence
             * of that value in its own tick labels to decide if it should add
             * it or not. If it happens that the parsed value is already present
             * in its map, the tick gets a visibility of false.
             *
             * The X axis does not have this problem since SWTCHART checks on
             * label angle, and if it is != 0 simply does no logic regarding
             * visibility. So simply set a label angle of 1 to the axis.
             */
        yAxis.getTick().setTickLabelAngle(1);
    }
    /* Update the titles */
    fXTitle = generateTitle(getXDescriptors(), getChart().getAxisSet().getXAxis(0));
    fYTitle = generateTitle(getYDescriptors(), getChart().getAxisSet().getYAxis(0));
    /* Refresh the titles to fit the current chart size */
    refreshDisplayTitles();
    refreshDisplayLabels();
}

Example 64 with IAxis

use of org.eclipse.swtchart.IAxis in project olca-app by GreenDelta.

the class ContributionChart method setYRange.

private void setYRange(List<Contribution<?>> top, double rest) {
    double min = rest < 0 ? rest : 0;
    double max = rest > 0 ? rest : 0;
    for (Contribution<?> item : top) {
        min = Math.min(min, item.amount);
        max = Math.max(max, item.amount);
    }
    double[] range = yrange(min, max);
    IAxis y = chart.getAxisSet().getYAxis(0);
    y.setRange(new Range(range[0], range[1]));
    y.getTick().setTickMarkStepHint(10);
}