Remove some duplication

OpenRA.FileFormats/Map/MapStub.cs

@@ -66,27 +66,5 @@ namespace OpenRA.FileFormats
 
 			Uid = Package.GetContent("map.uid").ReadAllText();
 		}
-		
-		public int2 ConvertToPreview(int2 point, Rectangle container)
-		{
-			float scale = Math.Min(container.Width * 1.0f / Width, container.Height * 1.0f / Height);
-
-			var size = Math.Max(Width, Height);
-			var dw = (int)(scale * (size - Width)) / 2;
-			var dh = (int)(scale * (size - Height)) / 2;
-
-			return new int2(container.X + dw + (int)(scale*(point.X - TopLeft.X)) , container.Y + dh + (int)(scale*(point.Y - TopLeft.Y)));
-		}
-		
-		public Rectangle PreviewBounds(Rectangle container)
-		{
-			float scale = Math.Min(container.Width * 1.0f / Width, container.Height * 1.0f / Height);
-
-			var size = Math.Max(Width, Height);
-			var dw = (int)(scale * (size - Width)) / 2;
-			var dh = (int)(scale * (size - Height)) / 2;
-
-			return new Rectangle(container.X + dw, container.Y + dh, (int)(Width * scale), (int)(Height * scale));
-		}
 	}
 }

OpenRA.Game/Widgets/CheckboxWidget.cs

@@ -35,24 +35,18 @@ namespace OpenRA.Widgets
 			var font = (Bold) ? Game.chrome.renderer.BoldFont : Game.chrome.renderer.RegularFont;
 			var pos = RenderOrigin;
 			var rect = RenderBounds;
-			WidgetUtils.DrawPanel("dialog3", new Rectangle(rect.Location,
+			var check = new Rectangle(rect.Location,
-					new Size(Bounds.Height, Bounds.Height)));
+					new Size(Bounds.Height, Bounds.Height));
+			WidgetUtils.DrawPanel("dialog3", check);
 
 			var textSize = font.Measure(Text);
 			font.DrawText(Text,
 				new float2(rect.Left + rect.Height * 1.5f, pos.Y - baseLine + (Bounds.Height - textSize.Y)/2), Color.White);
 
 			if (Checked())
-			{
+			{				
 				Game.chrome.renderer.RgbaSpriteRenderer.Flush();
-
+				WidgetUtils.FillRectWithColor(check.InflateBy(-4,-5,-4,-5),Color.White);
-				Game.chrome.lineRenderer.FillRect(
-					new RectangleF( 
-						Game.viewport.Location.X + rect.Left + 4, 
-						Game.viewport.Location.Y + rect.Top + 5,
-						rect.Height - 9,
-						rect.Height - 9), 
-						Color.White);
 				Game.chrome.lineRenderer.Flush();
 			}
 		}

OpenRA.Game/Widgets/ColorBlockWidget.cs

@@ -45,11 +45,8 @@ namespace OpenRA.Widgets
 		}
 
 		public override void DrawInner(World world)
-		{
+		{
-			var pos = RenderOrigin;
+			WidgetUtils.FillRectWithColor(RenderBounds, GetColor());
-			var paletteRect = new RectangleF(pos.X + Game.viewport.Location.X,
-				pos.Y + Game.viewport.Location.Y, Bounds.Width, Bounds.Height);
-			Game.chrome.lineRenderer.FillRect(paletteRect, GetColor());
 		}
 	}
 }

OpenRA.Game/Widgets/MapPreviewWidget.cs

@@ -9,19 +9,14 @@ namespace OpenRA.Widgets
 {
 	class MapPreviewWidget : Widget
 	{
-		Sheet mapChooserSheet;
+		public int SpawnClickRadius = 50;
-		Sprite mapChooserSprite;
+		
-		bool mapPreviewDirty = true;
-		MapStub lastMap;
-
 		public Func<MapStub> Map = () => null;
 		public Action<int> OnSpawnClick = spawn => {};
 		public Func<Dictionary<int2, Color>> SpawnColors = () => new Dictionary<int2, Color>();
-		
-		public MapPreviewWidget() : base() { }
-
 		static Cache<MapStub,Bitmap> PreviewCache = new Cache<MapStub, Bitmap>(stub => Minimap.RenderMapPreview(stub));
-		
+
+		public MapPreviewWidget() : base() { }
 		protected MapPreviewWidget(MapPreviewWidget other)
 			: base(other)
 		{
@@ -30,11 +25,14 @@ namespace OpenRA.Widgets
 			OnSpawnClick = other.OnSpawnClick;
 			SpawnColors = other.SpawnColors;
 		}
-		
+		public override Widget Clone() { return new MapPreviewWidget(this); }
-		static Sprite UnownedSpawn = null;
-		static Sprite OwnedSpawn = null;
-		const int closeEnough = 50;
 
+		
+		public int2 ConvertToPreview(MapStub map, int2 point)
+		{
+			return new int2(MapRect.X + (int)(PreviewScale*(point.X - map.TopLeft.X)) , MapRect.Y + (int)(PreviewScale*(point.Y - map.TopLeft.Y)));
+		}
+		
 		public override bool HandleInput(MouseInput mi)
 		{			
 			var map = Map();
@@ -44,8 +42,8 @@ namespace OpenRA.Widgets
 			if (mi.Event == MouseInputEvent.Down && mi.Button == MouseButton.Left)
 			{			
 				var p = map.Waypoints
-					.Select((sp, i) => Pair.New(map.ConvertToPreview(sp.Value, RenderBounds), i))
+					.Select((sp, i) => Pair.New(ConvertToPreview(map, sp.Value), i))
-					.Where(a => (a.First - mi.Location).LengthSquared < closeEnough)
+					.Where(a => (a.First - mi.Location).LengthSquared < SpawnClickRadius)
 					.Select(a => a.Second + 1)
 					.FirstOrDefault();
 				OnSpawnClick(p);
@@ -55,8 +53,13 @@ namespace OpenRA.Widgets
 			return false;
 		}
 
-		public override Widget Clone() { return new MapPreviewWidget(this); }
+		Sheet mapChooserSheet;
-
+		Sprite mapChooserSprite;
+		MapStub lastMap;
+		Rectangle MapRect;
+		float PreviewScale = 0;
+		static Sprite UnownedSpawn = null;
+		static Sprite OwnedSpawn = null;
 		public override void DrawInner( World world )
 		{
 			if (UnownedSpawn == null)
@@ -66,39 +69,37 @@ namespace OpenRA.Widgets
 			
 			var map = Map();
 			if( map == null ) return;
+			
 			if (lastMap != map)
 			{
-				mapPreviewDirty = true;
 				lastMap = map;
-			}
-			
-			var mapRect = map.PreviewBounds( RenderBounds );
 
-			if( mapPreviewDirty )
+				// Update image data
-			{
 				var preview = PreviewCache[map];
 				if( mapChooserSheet == null || mapChooserSheet.Size.Width != preview.Width || mapChooserSheet.Size.Height != preview.Height )
 					mapChooserSheet = new Sheet( Game.renderer, new Size( preview.Width, preview.Height ) );
 
 				mapChooserSheet.Texture.SetData( preview );
 				mapChooserSprite = new Sprite( mapChooserSheet, new Rectangle( 0, 0, map.Width, map.Height ), TextureChannel.Alpha );
-				mapPreviewDirty = false;
+				
+				// Update map rect
+				PreviewScale = Math.Min(RenderBounds.Width * 1.0f / map.Width, RenderBounds.Height * 1.0f / map.Height);
+				var size = Math.Max(map.Width, map.Height);
+				var dw = (int)(PreviewScale * (size - map.Width)) / 2;
+				var dh = (int)(PreviewScale * (size - map.Height)) / 2;
+				MapRect = new Rectangle(RenderBounds.X + dw, RenderBounds.Y + dh, (int)(map.Width * PreviewScale), (int)(map.Height * PreviewScale));
 			}
 
 			Game.chrome.renderer.RgbaSpriteRenderer.DrawSprite( mapChooserSprite,
-				new float2( mapRect.Location ),
+				new float2(MapRect.Location),
 				"chrome",
-				new float2( mapRect.Size ) );
+				new float2( MapRect.Size ) );
 
-			DrawSpawnPoints( map, world );
+			// Overlay spawnpoints
-		}
-
-		void DrawSpawnPoints(MapStub map, World world)
-		{		
 			var colors = SpawnColors();
 			foreach (var p in map.SpawnPoints)
 			{
-				var pos = map.ConvertToPreview(p, RenderBounds);
+				var pos = ConvertToPreview(map, p);
 				var sprite = UnownedSpawn;
 				var offset = new int2(-UnownedSpawn.bounds.Width/2, -UnownedSpawn.bounds.Height/2);
 
@@ -106,13 +107,8 @@ namespace OpenRA.Widgets
 				{
 					sprite = OwnedSpawn;
 					offset = new int2(-OwnedSpawn.bounds.Width/2, -OwnedSpawn.bounds.Height/2);
-					
+					WidgetUtils.FillRectWithColor(new Rectangle(pos.X + offset.X + 2, pos.Y + offset.Y + 2, 12, 12), colors[p]);
-					Game.chrome.lineRenderer.FillRect(new RectangleF(
-						Game.viewport.Location.X + pos.X + offset.X + 2,
-						Game.viewport.Location.Y + pos.Y + offset.Y + 2,
-						12, 12), colors[p]);
 				}
-				
 				Game.chrome.renderer.RgbaSpriteRenderer.DrawSprite(sprite, pos + offset, "chrome");
 			}
 

OpenRA.Game/Widgets/WidgetUtils.cs

@@ -63,7 +63,15 @@ namespace OpenRA.Widgets
 					DrawRGBA(ss, new float2(x, y));
 				}
 		}
-
+		
+		public static void FillRectWithColor(Rectangle r, Color c)
+		{
+			Game.chrome.lineRenderer.FillRect(new RectangleF(
+						Game.viewport.Location.X + r.X,
+						Game.viewport.Location.Y + r.Y,
+						r.Width, r.Height), c);
+		}
+		
 		public static int[] GetBorderSizes(string collection)
 		{
 			var images = new[] { "border-t", "border-b", "border-l", "border-r" };