using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace FracksA00
{
    public partial class SamplerBackground : UserControl
    {
        public SamplerBackground()
        {
            InitializeComponent();

        }

        private NAudio.Wave.WaveFileReader wave = null;
        private NAudio.Wave.DirectSoundOut output = null;

        void SamplerButtonLoadClick(object sender, EventArgs e)
        {
            OpenFileDialog open = new OpenFileDialog();
            open.Filter = "Wave File (*.wav)|*.wav;";
            if (open.ShowDialog() != DialogResult.OK) return;

            DisposeWave();

            wave = new NAudio.Wave.WaveFileReader(open.FileName);
            output = new NAudio.Wave.DirectSoundOut();
            output.Init(new NAudio.Wave.WaveChannel32(wave));
            output.Play();

            SamplerButtonPlay.Enabled = true;

        }
        void SamplerButtonPlayClick(object sender, EventArgs e)
        {
            if (output != null)
            {
                if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing) output.Pause();
                else if (output.PlaybackState == NAudio.Wave.PlaybackState.Paused) output.Play();

            }
        }

        private void DisposeWave()
        {
            if (output != null)
            {
                if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing) output.Stop();
                output.Dispose();
                output = null;
            }
            if (wave != null)
            {
                wave.Dispose();
                wave = null;
            }
        }
        private void Sampler_FormClosing(object sender, FormClosingEventArgs e)
        {
            DisposeWave();
        }
    }
}