More fixes III

ClassicalSharp/2D/Screens/MenuScreen.cs

@@ -46,6 +46,8 @@ namespace ClassicalSharp.Gui.Screens {
 		}
 		
 		protected override void ContextLost() {
+			if (widgets == null) return;
+			
 			for (int i = 0; i < widgets.Length; i++) {
 				if (widgets[i] == null) continue;
 				widgets[i].Dispose();

ClassicalSharp/2D/Screens/WarningScreen.cs

@@ -25,9 +25,9 @@ namespace ClassicalSharp.Gui.Screens {
 			this.body = body;
 		}
 		
-		string title, lastTitle;
-		string[] body, lastBody;
-		bool confirmNo, confirmMode, showAlways;
+		string title;
+		string[] body;
+		bool confirmNo, confirmingMode, showAlways;
 		int alwaysIndex = 100;
 		
 		public override void Init() {
@@ -35,15 +35,14 @@ namespace ClassicalSharp.Gui.Screens {
 			titleFont = new Font(game.FontName, 16, FontStyle.Bold);
 			regularFont = new Font(game.FontName, 16, FontStyle.Regular);
 			backCol.A = 210;
+			
+			if (game.Graphics.LostContext) return;
 			InitStandardButtons();
-			SetText(title, body);
+			RedrawText();
 		}
 
-		public void SetText(string title, params string[] body) {
-			lastTitle = title;
-			lastBody = body;
-			
-			if (confirmMode) {
+		public void RedrawText() {
+			if (confirmingMode) {
 				SetTextImpl("&eYou might be missing out.",
 				            "Texture packs can play a vital role in the look and feel of maps.",
 				            "", "Sure you don't want to download the texture pack?");
@@ -57,8 +56,6 @@ namespace ClassicalSharp.Gui.Screens {
 				for (int i = 0; i < labels.Length; i++)
 					labels[i].Dispose();
 			}
-			this.title = title;
-			this.body = body;
 			
 			labels = new TextWidget[body.Length + 1];
 			labels[0] = TextWidget.Create(game, title, titleFont)
@@ -96,28 +93,35 @@ namespace ClassicalSharp.Gui.Screens {
 			for (int i = 0; i < labels.Length; i++)
 				labels[i].CalculatePosition();
 		}
-		
-		public override void Dispose() {
-			base.Dispose();
+
+		protected override void ContextLost() {
+			base.ContextLost();
+			if (labels == null) return;	
+			
 			for (int i = 0; i < labels.Length; i++)
 				labels[i].Dispose();
 		}
 		
-		protected override void ContextLost()
-		{
-			base.ContextLost();
-		}
-		
-		protected override void ContextRecreated()
-		{
-			throw new NotImplementedException();
+		protected override void ContextRecreated() {
+			InitStandardButtons();
+			RedrawText();
 		}
 		
 		
 		void InitStandardButtons() {
-			widgets = new ButtonWidget[showAlways ? 4 : 2];
+			base.ContextLost();			
 			alwaysIndex = 100;
 			
+			if (confirmingMode) {
+				widgets = new ButtonWidget[2];
+				widgets[0] = ButtonWidget.Create(game, 160, 35, "I'm sure", titleFont, OnNoClick)
+					.SetLocation(Anchor.Centre, Anchor.Centre, -110, 30);
+				widgets[1] = ButtonWidget.Create(game, 160, 35, "Go back", titleFont, GoBackClick)
+					.SetLocation(Anchor.Centre, Anchor.Centre, 110, 30);
+				return;
+			}
+						
+			widgets = new ButtonWidget[showAlways ? 4 : 2];
 			widgets[0] = ButtonWidget.Create(game, 160, 35, "Yes", titleFont, OnYesClick)
 				.SetLocation(Anchor.Centre, Anchor.Centre, -110, 30);
 			widgets[1] = ButtonWidget.Create(game, 160, 35, "No", titleFont, OnNoClick)
@@ -146,8 +150,10 @@ namespace ClassicalSharp.Gui.Screens {
 			if (btn != MouseButton.Left) return;
 			bool always = Array.IndexOf<Widget>(widgets, w) >= alwaysIndex;
 			
-			if (confirmNo && !confirmMode) {
-				InitConfirmButtons(always); return;
+			if (confirmNo && !confirmingMode) {
+				confirmingMode = true;
+				ContextRecreated();
+				return;
 			}
 			
 			if (noClick != null) noClick(this, always);
@@ -155,23 +161,11 @@ namespace ClassicalSharp.Gui.Screens {
 			CloseScreen();
 		}
 		
-		void InitConfirmButtons(bool always) {
-			alwaysIndex = always ? 0 : 100;
-			widgets = new ButtonWidget[] {
-				ButtonWidget.Create(game, 160, 35, "I'm sure", titleFont, OnNoClick)
-					.SetLocation(Anchor.Centre, Anchor.Centre, -110, 30),
-				ButtonWidget.Create(game, 160, 35, "Go back", titleFont, GoBackClick)
-					.SetLocation(Anchor.Centre, Anchor.Centre, 110, 30),
-			};
-			confirmMode = true;
-			SetText(lastTitle, lastBody);
-		}
-		
 		void GoBackClick(Game g, Widget w, MouseButton btn, int x, int y) {
 			if (btn != MouseButton.Left) return;
-			InitStandardButtons();
-			confirmMode = false;
-			SetText(lastTitle, lastBody);
+			
+			confirmingMode = false;
+			ContextRecreated();
 		}
 	}
 }

ClassicalSharp/Entities/Entity.cs

@@ -74,6 +74,8 @@ namespace ClassicalSharp.Entities {
 		
 		public virtual void ContextLost() { }
 		
+		public virtual void ContextRecreated() { }
+		
 		
 		/// <summary> Gets the position of the player's eye in the world. </summary>
 		public Vector3 EyePosition {

ClassicalSharp/Entities/EntityList.cs

@@ -28,6 +28,7 @@ namespace ClassicalSharp.Entities {
 		public EntityList(Game game) {
 			this.game = game;
 			game.Graphics.ContextLost += ContextLost;
+			game.Graphics.ContextRecreated += ContextRecreated;
 			game.Events.ChatFontChanged += ChatFontChanged;
 			game.Events.TextureChanged += TextureChanged;
 			
@@ -108,6 +109,13 @@ namespace ClassicalSharp.Entities {
 			}
 		}
 		
+		void ContextRecreated() {
+			for (int i = 0; i < Entities.Length; i++) {
+				if (Entities[i] == null) continue;
+				Entities[i].ContextRecreated();
+			}
+		}
+		
 		void TextureChanged(object sender, TextureEventArgs e) {
 			if (e.Name != "char.png") return;
 			for (int i = 0; i < Entities.Length; i++) {
@@ -132,8 +140,10 @@ namespace ClassicalSharp.Entities {
 			}
 			
 			game.Graphics.ContextLost -= ContextLost;
+			game.Graphics.ContextRecreated -= ContextRecreated;
 			game.Events.ChatFontChanged -= ChatFontChanged;
 			game.Events.TextureChanged -= TextureChanged;
+			
 			if (ShadowComponent.shadowTex > 0)
 				game.Graphics.DeleteTexture(ref ShadowComponent.shadowTex);
 		}

ClassicalSharp/Entities/Player.cs

@@ -33,6 +33,8 @@ namespace ClassicalSharp.Entities {
 			game.Graphics.DeleteTexture(ref nameTex.ID);
 		}
 		
+		public override void ContextRecreated() { UpdateName(); }
+		
 		protected void MakeNameTexture() {
 			using (Font font = new Font(game.FontName, 24)) {
 				DrawTextArgs args = new DrawTextArgs(DisplayName, font, false);
@@ -58,6 +60,7 @@ namespace ClassicalSharp.Entities {
 		
 		public void UpdateName() {
 			ContextLost();
+			if (game.Graphics.LostContext) return;
 			MakeNameTexture();
 		}
 		

ClassicalSharp/Network/IServerConnection.cs

@@ -72,9 +72,11 @@ namespace ClassicalSharp {
 			string address = url;
 			if (url.StartsWith("https://")) address = url.Substring(8);
 			if (url.StartsWith("http://")) address = url.Substring(7);
-			screen.SetText("Do you want to download the server's texture pack?",
+			
+			screen.SetTextData("Do you want to download the server's texture pack?",
 			               "Texture pack url:", address,
 			               "Download size: " + contentLengthMB.ToString("F3") + " MB");
+			screen.RedrawText();
 		}
 		
 		protected internal void RetrieveTexturePack(string url) {