Examples with HeapSample io.flutter.vmService.HeapMonitor.HeapSample used on opensource projects

Example 1 with HeapSample

use of io.flutter.vmService.HeapMonitor.HeapSample in project flutter-intellij by flutter.

the class HeapSamples method paintComponent.

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    if (heapState == null) {
        return;
    }
    final int height = getHeight() - 1;
    final int width = getWidth();
    final long now = System.currentTimeMillis();
    final long maxDataSize = Math.round(heapState.getCapacity() / (double) TEN_MB) * TEN_MB + TEN_MB;
    final Graphics2D graphics2D = (Graphics2D) g;
    graphics2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    graphics2D.setColor(getForegroundColor());
    graphics2D.setStroke(GRAPH_STROKE);
    Path2D path = null;
    for (HeapSample sample : heapState.getSamples()) {
        final double x = width - (((double) (now - sample.getSampleTime())) / ((double) heapState.getMaxSampleSizeMs()) * width);
        final double y = (double) height * sample.getBytes() / maxDataSize;
        if (path == null) {
            path = new Path2D.Double();
            path.moveTo(x, height - y + 1);
        } else {
            path.lineTo(x, height - y + 1);
        }
    }
    graphics2D.draw(path);
}