private StringBuffer messageBuffer;

private CircularBuffer buffer;

private GraphPanel graphPanel;

private JComboBox serialRates;

private Serial serial;

private int serialRate;

private class GraphPanel extends JPanel {

private double minY, maxY, rangeY;

private Rectangle bounds;

private int xOffset;

private Font font;

private Color graphColor;

public GraphPanel() {

font = Theme.getFont("console.font");

graphColor = Theme.getColor("header.bgcolor");

xOffset = 20;

}

@Override

public void paintComponent(Graphics g1) {

Graphics2D g = (Graphics2D)g1;

g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

g.setFont(font);

super.paintComponent(g);

bounds = g.getClipBounds();

setBackground(Color.WHITE);

if(buffer.isEmpty()) {

return;

}

minY = buffer.min();

maxY = buffer.max();

Ticks ticks = new Ticks(minY, maxY, 3);

minY = Math.min(minY, ticks.getTick(0));

maxY = Math.max(maxY, ticks.getTick(ticks.getTickCount() - 1));

rangeY = maxY - minY;

minY -= 0.05 * rangeY;

maxY += 0.05 * rangeY;

rangeY = maxY - minY;

g.setStroke(new BasicStroke(1.0f));

FontMetrics fm = g.getFontMetrics();

for(int i = 0; i < ticks.getTickCount(); ++i) {

double tick = ticks.getTick(i);

Rectangle2D fRect = fm.getStringBounds(String.valueOf(tick), g);

xOffset = Math.max(xOffset, (int)fRect.getWidth() + 15);

// draw tick

g.drawLine(xOffset - 5, (int)transformY(tick), xOffset + 2, (int)transformY(tick));

// draw tick label

g.drawString(String.valueOf(tick), xOffset - (int)fRect.getWidth() - 10, transformY(tick) - (float)fRect.getHeight() * 0.5f + fm.getAscent());

}

g.drawLine(bounds.x + xOffset, bounds.y + 5, bounds.x + xOffset, bounds.y + bounds.height - 10);

g.setTransform(AffineTransform.getTranslateInstance(xOffset, 0));

float xstep = (float)(bounds.width - xOffset) / (float)buffer.capacity();

g.setColor(graphColor);

g.setStroke(new BasicStroke(0.75f));

for(int i = 0; i < buffer.size() - 1; ++i) {

g.drawLine(

(int)(i * xstep), (int)transformY(buffer.get(i)),

(int)((i + 1) * xstep), (int)transformY(buffer.get(i + 1))

);

}

}

@Override

public Dimension getMinimumSize() {

return new Dimension(200, 100);

}

@Override

public Dimension getPreferredSize() {

return new Dimension(500, 250);

}

private float transformY(double rawY) {

return (float)(5 + (bounds.height - 10) * (1.0 - (rawY - minY) / rangeY));

}

}

public SerialPlotter(BoardPort port) {

super(port);

serialRate = PreferencesData.getInteger("serial.debug_rate");

serialRates.setSelectedItem(serialRate + " " + _("baud"));

onSerialRateChange(new ActionListener() {

public void actionPerformed(ActionEvent event) {

String wholeString = (String) serialRates.getSelectedItem();

String rateString = wholeString.substring(0, wholeString.indexOf(' '));

serialRate = Integer.parseInt(rateString);

PreferencesData.set("serial.debug_rate", rateString);

try {

close();

Thread.sleep(100); // Wait for serial port to properly close

open();

} catch (InterruptedException e) {

// noop

} catch (Exception e) {

System.err.println(e);

}

}

});

messageBuffer = new StringBuffer();

}

protected void onCreateWindow(Container mainPane) {

mainPane.setLayout(new BorderLayout());

Font consoleFont = Theme.getFont("console.font");

Font editorFont = PreferencesData.getFont("editor.font");

Font font = new Font(consoleFont.getName(), consoleFont.getStyle(), editorFont.getSize());

buffer = new CircularBuffer(500);

graphPanel = new GraphPanel();

mainPane.add(graphPanel, BorderLayout.CENTER);

JPanel pane = new JPanel();

pane.setLayout(new BoxLayout(pane, BoxLayout.X_AXIS));

pane.setBorder(new EmptyBorder(4, 4, 4, 4));

serialRates = new JComboBox();

for (int i = 0; i < serialRateStrings.length; i++)

serialRates.addItem(serialRateStrings[i] + " " + _("baud"));

serialRates.setMaximumSize(serialRates.getMinimumSize());

pane.add(Box.createRigidArea(new Dimension(8, 0)));

pane.add(serialRates);

mainPane.add(pane, BorderLayout.SOUTH);

}

protected void onEnableWindow(boolean enable)

{

serialRates.setEnabled(enable);

}

public void onSerialRateChange(ActionListener listener) {

serialRates.addActionListener(listener);

}

public void message(final String s) {

messageBuffer.append(s);

while(true) {

int linebreak = messageBuffer.indexOf("\n");

if(linebreak == -1) {

break;

}

String line = messageBuffer.substring(0, linebreak);

line = line.trim();

messageBuffer.delete(0, linebreak + 1);

try {

double value = Double.valueOf(line);

buffer.add(value);

} catch(NumberFormatException e) {

continue; // ignore lines that can't be cast to a number

}

}

SwingUtilities.invokeLater(new Runnable() {

public void run() {

SerialPlotter.this.repaint();

}});

}

public void open() throws Exception {

super.open();

if (serial != null) return;

serial = new Serial(getBoardPort().getAddress(), serialRate) {

@Override

protected void message(char buff[], int n) {

addToUpdateBuffer(buff, n);

}

};

}

public void close() throws Exception {

if (serial != null) {

super.close();

int[] location = getPlacement();

String locationStr = PApplet.join(PApplet.str(location), ",");

PreferencesData.set("last.serial.location", locationStr);

serial.dispose();

serial = null;

}

}