Add dirty rect argument to Canvas.OnDraw

Samples/MonoDevelop.Components.Chart/BasicChart.cs

@@ -328,7 +328,7 @@ namespace MonoDevelop.Components.Chart
 			return (((double) minTickStep) * (GetEnd (ad) - GetStart (ad))) / (double) GetAreaSize (ad);
 		}
 		
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
 			double rwidth = Bounds.Width, rheight = Bounds.Height;
 			

Samples/Samples/Boxes.cs

@@ -98,7 +98,7 @@ namespace Samples
 			highlight = false;
 		}
 		
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
 			ctx.SetColor (new Color (0.5, 0.5, 0.5));
 			ctx.Rectangle (Bounds);

Samples/Samples/CanvasWithWidget.cs

@@ -53,7 +53,7 @@ namespace Samples
 			AddChild (box, new Rectangle (30, 70, 100, 30));
 		}
 		
-		protected override void OnDraw (Xwt.Drawing.Context ctx)
+		protected override void OnDraw (Xwt.Drawing.Context ctx, Rectangle dirtyRect)
 		{
 			ctx.Rectangle (0, 0, Bounds.Width, Bounds.Height);
 			var g = new LinearGradient (0, 0, Bounds.Width, Bounds.Height);

Samples/Samples/DrawingFigures.cs

@@ -32,9 +32,9 @@ namespace Samples
 {
 	public class DrawingFigures: Drawings
 	{
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
-			base.OnDraw (ctx);
+			base.OnDraw (ctx, dirtyRect);
 			Figures (ctx, 5, 5);
 		}
 		

Samples/Samples/DrawingPatternsAndImages.cs

@@ -32,9 +32,9 @@ namespace Samples
 {
 	public class DrawingPatternsAndImages: Drawings
 	{
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
-			base.OnDraw (ctx);
+			base.OnDraw (ctx, dirtyRect);
 			PatternsAndImages (ctx, 5, 5);
 		}
 		
@@ -83,15 +83,15 @@ namespace Samples
 			
 			// Setting pixels
 			
-			ib = new ImageBuilder (50, 50);
-			img = ib.ToImage ();
+			ctx.SetLineWidth (1);
 			for (int i=0; i<50;i++) {
 				for (var j=0; j<50;j++) {
-					img.SetPixel (i,j, Color.FromHsl (0.5, (double)i / 50d, (double)j / 50d));
+					Color c = Color.FromHsl (0.5, (double)i / 50d, (double)j / 50d);
+					ctx.Rectangle (i, j, 1, 1);
+					ctx.SetColor (c);
+					ctx.Fill ();
 				}
 			}
-			
-			ctx.DrawImage (img, 0, y + 110);
 		}	
 	}
 }

Samples/Samples/DrawingText.cs

@@ -32,9 +32,9 @@ namespace Samples
 {
 	public class DrawingText: Drawings
 	{
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
-			base.OnDraw (ctx);
+			base.OnDraw (ctx, dirtyRect);
 			Texts (ctx, 5, 5);
 		}
 		

Samples/Samples/DrawingTransforms.cs

@@ -40,9 +40,9 @@ namespace Samples
 	
 	public class DrawingTransforms: Canvas
 	{
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
-			base.OnDraw (ctx);
+			base.OnDraw (ctx, dirtyRect);
 			Transforms (ctx, 5, 5);
 		}
 

Samples/Samples/NotebookSample.cs

@@ -17,7 +17,7 @@ namespace Samples
 	
 	class MyWidget: Canvas
 	{
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
 			ctx.SetLineWidth (5);
 			ctx.SetColor (new Color (1.0f, 0f, 0.5f));

Samples/Samples/PartialImages.cs

@@ -47,9 +47,9 @@ namespace Samples
 			img = Image.FromResource (GetType (), "cow.jpg");
 		}
 
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
-			base.OnDraw (ctx);
+			base.OnDraw (ctx, dirtyRect);
 			
 			for (int y = 0; y < img.Size.Height / 50; ++y) {
 				for (int x = 0; x < img.Size.Width / 50; ++x) {

Samples/Samples/ScrollWindowSample.cs

@@ -88,7 +88,7 @@ namespace Samples
 			MinHeight = 100;
 		}
 		
-		protected override void OnDraw (Context ctx)
+		protected override void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
 			ctx.Translate (-hscroll.Value, -vscroll.Value);
 			ctx.Rectangle (new Rectangle (0, 0, imageSize, imageSize));

Xwt/Xwt/Canvas.cs

@@ -70,7 +70,7 @@ namespace Xwt
 				Context ctx = null;
 				try {
 					ctx = new Context (context);
-					((Canvas)Parent).OnDraw (ctx);
+					((Canvas)Parent).OnDraw (ctx, dirtyRect);
 				}
 				finally {
 					ctx.Dispose ();
@@ -246,7 +246,7 @@ namespace Xwt
 		/// <param name='ctx'>
 		/// Drawing context
 		/// </param>
-		protected virtual void OnDraw (Context ctx)
+		protected virtual void OnDraw (Context ctx, Rectangle dirtyRect)
 		{
 		}