Reimplement music player

OpenRA.Mods.Cnc/Widgets/CncMusicPlayerLogic.cs

@@ -0,0 +1,167 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using System.Drawing;
+using System.Linq;
+using OpenRA.FileFormats;
+using OpenRA.Support;
+using OpenRA.Widgets;
+using OpenRA.Traits;
+using OpenRA.Graphics;
+
+namespace OpenRA.Mods.Cnc.Widgets
+{
+	public class CncMusicPlayerLogic : IWidgetDelegate
+	{
+		bool installed;
+		string currentSong = null;
+		Widget panel;
+		string[] music;
+		string[] random;
+
+		[ObjectCreator.UseCtor]
+		public CncMusicPlayerLogic([ObjectCreator.Param] Widget widget,
+		                           [ObjectCreator.Param] Action onExit)
+		{
+			panel = widget.GetWidget("MUSIC_PANEL");
+			BuildMusicTable(panel);
+
+			currentSong = GetNextSong();
+			installed = Rules.Music.Where(m => m.Value.Exists).Any();
+			Func<bool> noMusic = () => !installed;
+			
+			panel.GetWidget<CncMenuButtonWidget>("BACK_BUTTON").OnClick = onExit;
+			panel.GetWidget<CncMenuButtonWidget>("INSTALL_BUTTON").IsDisabled = () => true;
+			panel.GetWidget("NO_MUSIC_LABEL").IsVisible = noMusic;
+
+			var playButton = panel.GetWidget<CncMenuButtonWidget>("BUTTON_PLAY");
+			playButton.OnClick = Play;
+			playButton.IsDisabled = noMusic;
+			
+			var pauseButton = panel.GetWidget<CncMenuButtonWidget>("BUTTON_PAUSE");
+			pauseButton.OnClick = Pause;
+			pauseButton.IsDisabled = noMusic;
+
+			var stopButton = panel.GetWidget<CncMenuButtonWidget>("BUTTON_STOP");
+			stopButton.OnClick = Stop;
+			stopButton.IsDisabled = noMusic;
+			
+			var nextButton = panel.GetWidget<CncMenuButtonWidget>("BUTTON_NEXT");
+			nextButton.OnClick = () => { currentSong = GetNextSong(); Play(); };
+			nextButton.IsDisabled = noMusic;
+			
+			var prevButton = panel.GetWidget<CncMenuButtonWidget>("BUTTON_PREV");
+			prevButton.OnClick = () => { currentSong = GetPrevSong(); Play(); };
+			prevButton.IsDisabled = noMusic;
+			
+			var shuffleCheckbox = panel.GetWidget<CncCheckboxWidget>("SHUFFLE");
+			shuffleCheckbox.IsChecked = () => Game.Settings.Sound.Shuffle;
+			shuffleCheckbox.OnClick = () => Game.Settings.Sound.Shuffle ^= true;
+			
+			var repeatCheckbox = panel.GetWidget<CncCheckboxWidget>("REPEAT");
+			repeatCheckbox.IsChecked = () => Game.Settings.Sound.Repeat;
+			repeatCheckbox.OnClick = () => Game.Settings.Sound.Repeat ^= true;
+
+			panel.GetWidget<LabelWidget>("TIME_LABEL").GetText = () => (currentSong == null) ? "" : 
+					"{0:D2}:{1:D2} / {2:D2}:{3:D2}".F((int)Sound.MusicSeekPosition / 60, (int)Sound.MusicSeekPosition % 60,
+					    							  Rules.Music[currentSong].Length / 60, Rules.Music[currentSong].Length % 60);
+		}
+	
+		void BuildMusicTable(Widget panel)
+		{
+			music = Rules.Music.Where(a => a.Value.Exists)
+				.Select(a => a.Key).ToArray();
+			random = music.Shuffle(Game.CosmeticRandom).ToArray();
+			
+			var ml = panel.GetWidget<ScrollPanelWidget>("MUSIC_LIST");
+			var itemTemplate = ml.GetWidget<ContainerWidget>("MUSIC_TEMPLATE");
+			
+			foreach (var s in music)
+			{
+				var song = s;
+				if (currentSong == null)
+					currentSong = song;
+
+				var template = itemTemplate.Clone() as ContainerWidget;
+				template.GetBackground = () => (template.RenderBounds.Contains(Viewport.LastMousePos) ? "button-hover" : (song == currentSong) ? "button-pressed" : null);
+				template.OnMouseDown = mi =>
+				{
+					if (mi.Button != MouseButton.Left) return false;
+					currentSong = song;
+					Play();
+					return true;
+				};
+
+				template.IsVisible = () => true;				
+				template.GetWidget<LabelWidget>("TITLE").GetText = () => Rules.Music[song].Title;
+				template.GetWidget<LabelWidget>("LENGTH").GetText = () => SongLengthLabel(song);
+				ml.AddChild(template);
+			}
+		}
+		
+		
+		void Play()
+		{
+			if (currentSong == null)
+				return;
+			
+			Sound.PlayMusicThen(Rules.Music[currentSong].Filename, () =>
+			{
+				if (!Game.Settings.Sound.Repeat)
+					currentSong = GetNextSong();
+				Play();
+			});
+			
+			panel.GetWidget("BUTTON_PLAY").Visible = false;
+			panel.GetWidget("BUTTON_PAUSE").Visible = true;
+		}
+		
+		void Pause()
+		{
+			Sound.PauseMusic();
+			panel.GetWidget("BUTTON_PAUSE").Visible = false;
+			panel.GetWidget("BUTTON_PLAY").Visible = true;
+		}
+		
+		void Stop()
+		{
+			Sound.StopMusic();
+			panel.GetWidget("BUTTON_PAUSE").Visible = false;
+			panel.GetWidget("BUTTON_PLAY").Visible = true;		
+		}
+		
+		string SongLengthLabel(string song)
+		{
+			return "{0:D1}:{1:D2}".F(Rules.Music[song].Length / 60,
+			                         Rules.Music[song].Length % 60);
+		}
+		
+		string GetNextSong()
+		{
+			if (!music.Any())
+				return null;
+			
+			var songs = Game.Settings.Sound.Shuffle ? random : music;
+			return songs.SkipWhile(m => m != currentSong)
+				.Skip(1).FirstOrDefault() ?? songs.FirstOrDefault();
+		}
+
+		string GetPrevSong()
+		{
+			if (!music.Any())
+				return null;
+			
+			var songs = Game.Settings.Sound.Shuffle ? random : music;
+			return songs.Reverse().SkipWhile(m => m != currentSong)
+				.Skip(1).FirstOrDefault() ?? songs.FirstOrDefault();
+		}
+	}
+}