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/*

:53  2001

Copyright (C) 2000 Andrew Sorensen & Andrew Brown

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or any
later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

package jm.midi.event;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

/**
 * ********************************************************
 * Description:
 * The PWheel event is one of a set of events whose parent
 * class is VoiceEvt.  In total these classes cover all voice
 * event types found in most MIDI file formats.
 * These classes will usually be added to a linked list as type
 * VoiceEvt.
 * (see class VoiceEvt for more information)
 *
 * @author Andrew Sorensen
 *         **********************************************************
 */
public final class PWheel implements VoiceEvt, Cloneable {
    private final short id = 006;
    private int value;
    private short midiChannel;
    private int time;

    /**
     * Public constructor for creating a default (empty) pitch wheel event
     */
    public PWheel() {
        this.value = 0;
        this.midiChannel = 0;
        this.time = 0;
    }

    /**
     * Public constructor for creating a pitch wheel event with pitch wheel value
     * midi channel and time
     */
    public PWheel(int value, short midiChannel, int time) {
        this.value = value;
        this.midiChannel = midiChannel;
        this.time = time;
    }
    //------------------------------------
    //value

    /**
     * Return pitch wheel events pitch wheel value
     */
    public int getValue() {
        return value;
    }

    /**
     * Set pitch wheel events pitch wheel value
     */
    public void setValue(int value) {
        this.value = value;
    }
    //-------------------------------------
    //MIDI Channel

    /**
     * Return pitch wheel events MIDI channel
     */
    public short getMidiChannel() {
        return midiChannel;
    }

    /**
     * Set pitch wheel events MIDI channel
     */
    public void setMidiChannel(short midiChannel) {
        this.midiChannel = midiChannel;
    }
    //-------------------------------------
    //Time

    /**
     * Return pitch wheel events time
     */
    public int getTime() {
        return time;
    }

    /**
     * Set pitch wheel events time
     */
    public void setTime(int time) {
        this.time = time;
    }

    //-------------------------------------
    //Return ID
    public short getID() {
        return id;
    }

    //----------------------------------------------
    // Write the contents of this object out to disk
    //----------------------------------------------
    public int write(DataOutputStream dos) throws IOException {
        return 0;
    }

    //----------------------------------------------
    // Read the contends of this objec in from disk
    public int read(DataInputStream dis) throws IOException {
        // Pitch wheel change is a 14 bit value stored in two bytes,
        // least significant first
        this.value = (int) dis.readUnsignedByte();
        this.value += ((int) dis.readUnsignedByte()) * 128;
        return 1;
    }

    //--------------------------------------
    //Copy Object
    public Event copy() throws CloneNotSupportedException {
        PWheel event;
        try {
            event = (PWheel) this.clone();
        } catch (CloneNotSupportedException e) {
            System.out.println(e);
            event = new PWheel();
        }
        return event;
    }

    //---------------------------------------
    //Print
    public void print() {
        System.out.println("Pitch Wheel(006):				  [time = " + time + "][midiChannel = " + midiChannel + "][value = " + value + "]");
    }
}