Remove default arguments from LuaPictureBox.*

Author: YoshiRulz

src/BizHawk.Client.EmuHawk/tools/Lua/LuaPictureBox.cs

@@ -82,7 +82,13 @@ public void DrawBezier(LuaTable points, [LuaColorParam] object color)
 			boxBackground.DrawBezier(GetPen(TableHelper.ParseColor(color)), pointsArr[0], pointsArr[1], pointsArr[2], pointsArr[3]);
 		}
 
-		public void DrawBox(int x, int y, int x2, int y2, [LuaColorParam] object line = null, [LuaColorParam] object background = null)
+		public void DrawBox(
+			int x,
+			int y,
+			int x2,
+			int y2,
+			[LuaColorParam] object line,
+			[LuaColorParam] object background)
 		{
 			if (x < x2)
 			{
@@ -115,7 +121,13 @@ public void DrawBox(int x, int y, int x2, int y2, [LuaColorParam] object line =
 			}
 		}
 
-		public void DrawEllipse(int x, int y, int width, int height, [LuaColorParam] object line = null, [LuaColorParam] object background = null)
+		public void DrawEllipse(
+			int x,
+			int y,
+			int width,
+			int height,
+			[LuaColorParam] object line,
+			[LuaColorParam] object background)
 		{
 			var bg = TableHelper.SafeParseColor(background) ?? _defaultBackground;
 			var boxBackground = Graphics.FromImage(Image);
@@ -129,7 +141,7 @@ public void DrawEllipse(int x, int y, int width, int height, [LuaColorParam] obj
 			boxBackground.DrawEllipse(GetPen(TableHelper.SafeParseColor(line) ?? _defaultForeground), x, y, width, height);
 		}
 
-		public void DrawIcon(string path, int x, int y, int? width = null, int? height = null)
+		public void DrawIcon(string path, int x, int y, int? width, int? height)
 		{
 			Icon icon;
 			if (width.HasValue && height.HasValue)
@@ -145,7 +157,7 @@ public void DrawIcon(string path, int x, int y, int? width = null, int? height =
 			boxBackground.DrawIcon(icon, x, y);
 		}
 
-		public void DrawImage(string path, int x, int y, int? width = null, int? height = null, bool cache = true)
+		public void DrawImage(string path, int x, int y, int? width, int? height, bool cache)
 		{
 			if (!_imageCache.TryGetValue(path, out var img))
 			{
@@ -170,7 +182,16 @@ public void ClearImageCache()
 			_imageCache.Clear();
 		}
 
-		public void DrawImageRegion(string path, int sourceX, int sourceY, int sourceWidth, int sourceHeight, int destX, int destY, int? destWidth = null, int? destHeight = null)
+		public void DrawImageRegion(
+			string path,
+			int sourceX,
+			int sourceY,
+			int sourceWidth,
+			int sourceHeight,
+			int destX,
+			int destY,
+			int? destWidth,
+			int? destHeight)
 		{
 			var img = _imageCache.GetValueOrPut(path, Image.FromFile);
 			var destRect = new Rectangle(destX, destY, destWidth ?? sourceWidth, destHeight ?? sourceHeight);
@@ -179,20 +200,27 @@ public void DrawImageRegion(string path, int sourceX, int sourceY, int sourceWid
 			boxBackground.DrawImage(img, destRect, sourceX, sourceY, sourceWidth, sourceHeight, GraphicsUnit.Pixel);
 		}
 
-		public void DrawLine(int x1, int y1, int x2, int y2, [LuaColorParam] object color = null)
+		public void DrawLine(int x1, int y1, int x2, int y2, [LuaColorParam] object color)
 		{
 			var boxBackground = Graphics.FromImage(Image);
 			boxBackground.DrawLine(GetPen(TableHelper.SafeParseColor(color) ?? _defaultForeground), x1, y1, x2, y2);
 		}
 
-		public void DrawAxis(int x, int y, int size, [LuaColorParam] object color = null)
+		public void DrawAxis(int x, int y, int size, [LuaColorParam] object color)
 		{
 			var color1 = TableHelper.SafeParseColor(color);
 			DrawLine(x + size, y, x - size, y, color1);
 			DrawLine(x, y + size, x, y - size, color1);
 		}
 
-		public void DrawArc(int x, int y, int width, int height, int startAngle, int sweepAngle, [LuaColorParam] object line = null)
+		public void DrawArc(
+			int x,
+			int y,
+			int width,
+			int height,
+			int startAngle,
+			int sweepAngle,
+			[LuaColorParam] object line)
 		{
 			var boxBackground = Graphics.FromImage(Image);
 			boxBackground.DrawArc(GetPen(TableHelper.SafeParseColor(line) ?? _defaultForeground), x, y, width, height, startAngle, sweepAngle);
@@ -205,8 +233,8 @@ public void DrawPie(
 			int height,
 			int startAngle,
 			int sweepAngle,
-			[LuaColorParam] object line = null,
-			[LuaColorParam] object background = null)
+			[LuaColorParam] object line,
+			[LuaColorParam] object background)
 		{
 			var bg = TableHelper.SafeParseColor(background) ?? _defaultBackground;
 			var boxBackground = Graphics.FromImage(Image);
@@ -220,13 +248,18 @@ public void DrawPie(
 			boxBackground.DrawPie(GetPen(TableHelper.SafeParseColor(line) ?? _defaultForeground), x + 1, y + 1, width - 1, height - 1, startAngle, sweepAngle);
 		}
 
-		public void DrawPixel(int x, int y, [LuaColorParam] object color = null)
+		public void DrawPixel(int x, int y, [LuaColorParam] object color)
 		{
 			var boxBackground = Graphics.FromImage(Image);
 			boxBackground.DrawLine(GetPen(TableHelper.SafeParseColor(color) ?? _defaultForeground), x, y, x + 0.1F, y);
 		}
 
-		public void DrawPolygon(LuaTable points, int? x = null, int? y = null, [LuaColorParam] object line = null, [LuaColorParam] object background = null)
+		public void DrawPolygon(
+			LuaTable points,
+			int? x,
+			int? y,
+			[LuaColorParam] object line,
+			[LuaColorParam] object background)
 		{
 			var pointsList = TableHelper.EnumerateValues<LuaTable>(points)
 				.Select(table => TableHelper.EnumerateValues<long>(table).ToList()).ToList();
@@ -248,7 +281,13 @@ public void DrawPolygon(LuaTable points, int? x = null, int? y = null, [LuaColor
 			}
 		}
 
-		public void DrawRectangle(int x, int y, int width, int height, [LuaColorParam] object line = null, [LuaColorParam] object background = null)
+		public void DrawRectangle(
+			int x,
+			int y,
+			int width,
+			int height,
+			[LuaColorParam] object line,
+			[LuaColorParam] object background)
 		{
 			var bg = TableHelper.SafeParseColor(background) ?? _defaultBackground;
 			var boxBackground = Graphics.FromImage(Image);
@@ -265,13 +304,13 @@ public void DrawText(
 			int x,
 			int y,
 			string message,
-			[LuaColorParam] object foreColor = null,
-			[LuaColorParam] object backColor = null,
-			int? fontSize = null,
-			string fontFamily = null,
-			string fontStyle = null,
-			string horizAlign = null,
-			string vertAlign = null)
+			[LuaColorParam] object foreColor,
+			[LuaColorParam] object backColor,
+			int? fontSize,
+			string fontFamily,
+			string fontStyle,
+			string horizAlign,
+			string vertAlign)
 		{
 			var family = FontFamily.GenericMonospace;
 			if (fontFamily != null)