Basically all Java Swing functionality is at your disposal, all you need to do is to treat the bottom tab as an arbitrary content panel.
We took the following swing example:
https://docs.oracle.com/javase/tutorial/ ... tml#updateAnd embedded it in the bottom tab in the following way:
package singlejartest;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Vector;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import com.dukascopy.api.Configurable;
import com.dukascopy.api.IAccount;
import com.dukascopy.api.IBar;
import com.dukascopy.api.IContext;
import com.dukascopy.api.IMessage;
import com.dukascopy.api.IStrategy;
import com.dukascopy.api.ITick;
import com.dukascopy.api.IUserInterface;
import com.dukascopy.api.Instrument;
import com.dukascopy.api.JFException;
import com.dukascopy.api.Period;
import com.dukascopy.api.RequiresFullAccess;
@RequiresFullAccess
public class ScrollablePanelForBottomTab implements IStrategy {
private IUserInterface userInterface;
@Configurable("Use tab")
public boolean useTab = true;
public void onStart(IContext context) throws JFException {
this.userInterface = context.getUserInterface();
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
if (useTab) {
ScrollDemo2.createAndShowGUI(userInterface
.getBottomTab("bottom tab"));
} else {
ScrollDemo2.createAndShowGUI();
}
}
});
}
public void onTick(Instrument instrument, ITick tick) throws JFException {
}
public void onStop() throws JFException {
}
public void onAccount(IAccount account) throws JFException {
}
public void onMessage(IMessage message) throws JFException {
}
public void onBar(Instrument instrument, Period period, IBar askBar,
IBar bidBar) throws JFException {
}
}
// ScrollDemo2.java requires no other files.
class ScrollDemo2 extends JPanel implements MouseListener {
private Dimension area; // indicates area taken up by graphics
private Vector<Rectangle> circles; // coordinates used to draw graphics
private JPanel drawingPane;
private final Color colors[] = { Color.red, Color.blue, Color.green,
Color.orange, Color.cyan, Color.magenta, Color.darkGray,
Color.yellow };
private final int color_n = colors.length;
public ScrollDemo2(int width, int height) {
super(new BorderLayout());
area = new Dimension(0, 0);
circles = new Vector<Rectangle>();
// Set up the instructions.
JLabel instructionsLeft = new JLabel(
"Click left mouse button to place a circle.");
JLabel instructionsRight = new JLabel(
"Click right mouse button to clear drawing area.");
JPanel instructionPanel = new JPanel(new GridLayout(0, 1));
instructionPanel.setFocusable(true);
instructionPanel.add(instructionsLeft);
instructionPanel.add(instructionsRight);
// Set up the drawing area.
drawingPane = new DrawingPane();
drawingPane.setBackground(Color.white);
drawingPane.addMouseListener(this);
// Put the drawing area in a scroll pane.
JScrollPane scroller = new JScrollPane(drawingPane);
scroller.setPreferredSize(new Dimension(width, height));
// Lay out this demo.
add(instructionPanel, BorderLayout.PAGE_START);
add(scroller, BorderLayout.CENTER);
}
/** The component inside the scroll pane. */
public class DrawingPane extends JPanel {
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Rectangle rect;
for (int i = 0; i < circles.size(); i++) {
rect = circles.elementAt(i);
g.setColor(colors[(i % color_n)]);
g.fillOval(rect.x, rect.y, rect.width, rect.height);
}
}
}
// Handle mouse events.
public void mouseReleased(MouseEvent e) {
final int W = 100;
final int H = 100;
boolean changed = false;
if (SwingUtilities.isRightMouseButton(e)) {
// This will clear the graphic objects.
circles.removeAllElements();
area.width = 0;
area.height = 0;
changed = true;
} else {
int x = e.getX() - W / 2;
int y = e.getY() - H / 2;
if (x < 0)
x = 0;
if (y < 0)
y = 0;
Rectangle rect = new Rectangle(x, y, W, H);
circles.addElement(rect);
drawingPane.scrollRectToVisible(rect);
int this_width = (x + W + 2);
if (this_width > area.width) {
area.width = this_width;
changed = true;
}
int this_height = (y + H + 2);
if (this_height > area.height) {
area.height = this_height;
changed = true;
}
}
if (changed) {
// Update client's preferred size because
// the area taken up by the graphics has
// gotten larger or smaller (if cleared).
drawingPane.setPreferredSize(area);
// Let the scroll pane know to update itself
// and its scrollbars.
drawingPane.revalidate();
}
drawingPane.repaint();
}
public void mouseClicked(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
/**
* Create the GUI and show it. For thread safety, this method should be
* invoked from the event-dispatching thread.
*/
public static void createAndShowGUI() {
// Create and set up the window.
JFrame frame = new JFrame("ScrollDemo2");
// frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
JComponent newContentPane = new ScrollDemo2(200, 200);
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Display the window.
frame.pack();
frame.setVisible(true);
}
public static void createAndShowGUI(final JPanel parent) {
// Create and set up the content pane.
final JComponent newContentPane = new ScrollDemo2(
parent.getWidth() - 20, parent.getHeight() - 30);
// resize scrollable panel on bottom tab resize
parent.addComponentListener(new ComponentAdapter() {
@Override
public void componentResized(ComponentEvent e) {
newContentPane.setPreferredSize(new Dimension(
parent.getWidth() - 20, parent.getHeight() - 30));
}
});
newContentPane.setOpaque(true);
parent.add(newContentPane);
}
}
