SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// Multi-Phasic Applications: SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package cc.squirreljme.debugger;

import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.BevelBorder;
import javax.swing.border.EmptyBorder;

/**
 * Status panel tracker, as Swing does not have one!
 *
 * @since 2024/01/19
 */
public class StatusPanel
    extends JPanel
    implements TallyListener
{
    /** The state of the debugger. */
    protected final DebuggerState debuggerState;
    
    /** State label. */
    protected final JLabel stateLabel;
    
    /** Received Label. */
    protected final JLabel receivedLabel;
    
    /** The number of packets that were sent. */
    protected final JLabel sentLabel;
    
    /** Waiting packets. */
    protected final JLabel waitingLabel;
    
    /** Latency. */
    protected final JLabel latencyLabel;
    
    /** General message. */
    protected final JLabel message;
    
    /** The maximum latency. */
    private volatile int _maxLatency;
    
    /**
     * Initializes the panel.
     *
     * @param __state The state of the debugger.
     * @throws NullPointerException On null arguments.
     * @since 2024/01/19
     */
    public StatusPanel(DebuggerState __state)
        throws NullPointerException
    {
        if (__state == null)
            throw new NullPointerException("NARG");
        
        // Store for tracking
        this.debuggerState = __state;
        
        // Make sure it is always visible
        Font baseLabelFont = new JLabel().getFont();
        this.setMinimumSize(
            new Dimension(320, baseLabelFont.getSize()));
        /*this.setPreferredSize(new Dimension(320, 16));*/
        
        // Beveled border, which is generally natural
        /*this.setBorder(new BevelBorder(BevelBorder.LOWERED));*/
        this.setBorder(new EmptyBorder(0, 0, 0, 0));
        
        // Flow layouts are clean
        FlowLayout layout = new FlowLayout(FlowLayout.LEADING, 0, 0);
        layout.setAlignOnBaseline(true);
        this.setLayout(layout);
        
        // State label
        JLabel stateLabel = new JLabel("CONNECTED");
        this.__pretty(stateLabel);
        this.stateLabel = stateLabel;
        
        // Received packets label
        JLabel receivedLabel = new JLabel();
        this.__pretty(receivedLabel);
        this.receivedLabel = receivedLabel;
        
        // Sent packets
        JLabel sentLabel = new JLabel();
        this.__pretty(sentLabel);
        this.sentLabel = sentLabel;
        
        // Waiting packets
        JLabel waitingLabel = new JLabel();
        this.__pretty(waitingLabel);
        this.waitingLabel = waitingLabel;
        
        // Latency
        JLabel latencyLabel = new JLabel();
        this.__pretty(latencyLabel);
        this.latencyLabel = latencyLabel;
        
        // Message
        JLabel message = new JLabel();
        this.__pretty(message);
        this.message = message;
        
        // Add labels
        this.add(stateLabel);
        this.add(receivedLabel);
        this.add(sentLabel);
        this.add(waitingLabel);
        this.add(latencyLabel);
        this.add(message);
        
        // Add listeners to tallies to update stats
        __state.receiveTally.addListener(this);
        __state.sentTally.addListener(this);
        __state.waitingTally.addListener(this);
        __state.latency.addListener(this);
        __state.disconnectedTally.addListener(this);
        __state.vmDeadTally.addListener(this);
    }
    
    /**
     * Sets the message to display.
     *
     * @param __message The message.
     * @since 2024/01/26
     */
    public void setMessage(String __message)
    {
        this.message.setText(__message);
    }
    
    /**
     * {@inheritDoc}
     * @since 2024/01/19
     */
    @Override
    public void updateTally(TallyTracker __which, int __old, int __new)
    {
        DebuggerState state = this.debuggerState;
        
        // Received a packet? Or disconnected?
        if (__which == state.receiveTally)
            this.receivedLabel.setText(
                String.format("Received: %d", __new));
        
        // Sent a packet?
        else if (__which == state.sentTally)
            this.sentLabel.setText(
                String.format("Sent: %d", __new));
        
        // Waiting for packets
        else if (__which == state.waitingTally)
            this.waitingLabel.setText(
                String.format("Waiting: %d", __new));
        
        // Latency
        else if (__which == state.latency)
        {
            int max = Math.max(__new, this._maxLatency);
            this._maxLatency = max;
            
            this.latencyLabel.setText(
                String.format("Latency: %d ms (max %d ms)",
                    __new, max));
        }
        
        // Disconnected?
        else if (__which == state.disconnectedTally ||
            __which == state.vmDeadTally)
        {
            if (state.vmDeadTally.get() > 0)
                this.stateLabel.setText("DEAD");
            else
                this.stateLabel.setText("DISCONNECTED");
        }
    }
    
    /**
     * Makes the border pretty.
     *
     * @param __label The label to use.
     * @throws NullPointerException On null arguments.
     * @since 2024/01/21
     */
    private void __pretty(JLabel __label)
        throws NullPointerException
    {
        if (__label == null)
            throw new NullPointerException("NARG");
        
        __label.setBorder(new BevelBorder(BevelBorder.LOWERED));
    }
}