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

namespace CSharp.Winforms.Musicplayer
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		protected IrrKlang.ISoundEngine irrKlangEngine;
		protected IrrKlang.ISound currentlyPlayingSound;

		private System.Windows.Forms.Button SelectFileButton;
		private System.Windows.Forms.Button PauseButton;
		private System.Windows.Forms.TrackBar volumeTrackBar;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox filenameTextBox;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			// create irrklang sound engine
			irrKlangEngine = new IrrKlang.ISoundEngine();
			playSelectedFile();
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.filenameTextBox = new System.Windows.Forms.TextBox();
			this.SelectFileButton = new System.Windows.Forms.Button();
			this.PauseButton = new System.Windows.Forms.Button();
			this.volumeTrackBar = new System.Windows.Forms.TrackBar();
			this.label1 = new System.Windows.Forms.Label();
			((System.ComponentModel.ISupportInitialize)(this.volumeTrackBar)).BeginInit();
			this.SuspendLayout();
			// 
			// filenameTextBox
			// 
			this.filenameTextBox.Location = new System.Drawing.Point(24, 24);
			this.filenameTextBox.Name = "filenameTextBox";
			this.filenameTextBox.ReadOnly = true;
			this.filenameTextBox.Size = new System.Drawing.Size(280, 20);
			this.filenameTextBox.TabIndex = 0;
			this.filenameTextBox.Text = "../../media/getout.ogg";
			// 
			// SelectFileButton
			// 
			this.SelectFileButton.Location = new System.Drawing.Point(312, 24);
			this.SelectFileButton.Name = "SelectFileButton";
			this.SelectFileButton.Size = new System.Drawing.Size(32, 24);
			this.SelectFileButton.TabIndex = 1;
			this.SelectFileButton.Text = "...";
			this.SelectFileButton.Click += new System.EventHandler(this.SelectFileButton_Click);
			// 
			// PauseButton
			// 
			this.PauseButton.Location = new System.Drawing.Point(184, 104);
			this.PauseButton.Name = "PauseButton";
			this.PauseButton.TabIndex = 2;
			this.PauseButton.Text = "Pause";
			this.PauseButton.Click += new System.EventHandler(this.PauseButton_Click);
			// 
			// volumeTrackBar
			// 
			this.volumeTrackBar.Location = new System.Drawing.Point(24, 96);
			this.volumeTrackBar.Maximum = 100;
			this.volumeTrackBar.Name = "volumeTrackBar";
			this.volumeTrackBar.Size = new System.Drawing.Size(136, 42);
			this.volumeTrackBar.SmallChange = 5;
			this.volumeTrackBar.TabIndex = 3;
			this.volumeTrackBar.TickFrequency = 10;
			this.volumeTrackBar.Scroll += new System.EventHandler(this.volumeTrackBar_Scroll);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(24, 72);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(100, 16);
			this.label1.TabIndex = 4;
			this.label1.Text = "Volume:";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(456, 149);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.volumeTrackBar);
			this.Controls.Add(this.PauseButton);
			this.Controls.Add(this.SelectFileButton);
			this.Controls.Add(this.filenameTextBox);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.Text = "Simple irrKlang .NET Winforms Example Player";
			((System.ComponentModel.ISupportInitialize)(this.volumeTrackBar)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}


		// plays filename selected in edit box
		void playSelectedFile()
		{
			// stop currently playing sound

			if (currentlyPlayingSound != null)
				currentlyPlayingSound.Stop();

			// start new sound

			currentlyPlayingSound = irrKlangEngine.Play2D(filenameTextBox.Text, true);

			// update controls to display the playing file

			UpdatePauseButtonText();
			
            volumeTrackBar.Value = 100;
		}


		// pauses or unpauses the currently playing sound
		private void PauseButton_Click(object sender, System.EventArgs e)
		{
			if (currentlyPlayingSound != null)
			{
				currentlyPlayingSound.Paused = !currentlyPlayingSound.Paused;
				UpdatePauseButtonText();
			}
		}


		// Updates the text on the pause button
		private void UpdatePauseButtonText()
		{
			if (currentlyPlayingSound != null)
			{
				if (currentlyPlayingSound.Paused)
					PauseButton.Text = "Play";
				else
					PauseButton.Text = "Pause";
			}
			else
				PauseButton.Text = "";
		}


		// Sets new volume of currently playing sound
		private void volumeTrackBar_Scroll(object sender, System.EventArgs e)
		{
			if (currentlyPlayingSound != null)
			{
				currentlyPlayingSound.Volume = volumeTrackBar.Value / 100.0f;
			}
		}


		// selects a new file to play
		private void SelectFileButton_Click(object sender, System.EventArgs e)
		{
			System.Windows.Forms.OpenFileDialog dialog = new
				System.Windows.Forms.OpenFileDialog();

			dialog.Filter = "All playable files (*.mp3;*.ogg;*.wav;*.mod;*.it;*.xm;*.it;*.s3d)|*.mp3;*.ogg;*.wav;*.mod;*.it;*.xm;*.it;*.s3d";
		    dialog.FilterIndex = 0;

			if (dialog.ShowDialog(this) == System.Windows.Forms.DialogResult.OK)
			{
				filenameTextBox.Text = dialog.FileName;
				playSelectedFile();
			}
		}
	}
}