temp save to make test in master

13 files changed, 135 insertions, 111 deletions

diff --git a/Crow.csproj b/Crow.csproj
index 64eab6c9..9ae27230 100644
--- a/Crow.csproj
+++ b/Crow.csproj
@@ -46,7 +46,7 @@
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>bin\Debug</OutputPath>
-    <DefineConstants>DEBUG_LAYOUTING0;TRACE;DEBUG;__linux__;MEASURE_TIME;DEBUG_LOAD_TIME0;DEBUG_BINDING0;DEBUG_CLIP_RECTANGLE0</DefineConstants>
+    <DefineConstants>DEBUG_LAYOUTING0;TRACE;DEBUG;__linux__;MEASURE_TIME;DEBUG_LOAD_TIME0;DEBUG_BINDING0;DEBUG_CLIP_RECTANGLE</DefineConstants>
   </PropertyGroup>
   <!--  <PropertyGroup Condition=" '$(Platform)' == 'Linux_x86' ">
     <DefineConstants>__linux__</DefineConstants>
diff --git a/Tests/GOLIBTests.cs b/Tests/GOLIBTests.cs
index fbf76ea2..45bf6392 100644
--- a/Tests/GOLIBTests.cs
+++ b/Tests/GOLIBTests.cs
@@ -37,6 +37,8 @@ namespace test
 		int frameCpt = 0;
 		int idx = 0;
 		string[] testFiles = {
+			"clip1.crow",
+			"clip0.crow",
 			"0.crow",
 			"5.crow",
 			"testCombobox.goml",
diff --git a/Tests/Interfaces/clip0.crow b/Tests/Interfaces/clip0.crow
new file mode 100755
index 00000000..2ebea9ff
--- /dev/null
+++ b/Tests/Interfaces/clip0.crow
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<Container Fit="true" Margin="50" Background="LimeGreen" CacheEnabled="false"
+		HorizontalAlignment="Right" VerticalAlignment="Bottom"
+		MouseEnter="{Background=Gray}"
+		MouseLeave="{Background=LimeGreen}">
+	<Label HorizontalAlignment="Center" VerticalAlignment="Center" CacheEnabled="false"
+		MouseEnter="{Background=DimGray}" Width="100"
+		MouseLeave="{Background=BlueCrayola}"
+	 	Margin="10" Text="{drawing}" Background="BlueCrayola"/>
+ </Container>
\ No newline at end of file
diff --git a/Tests/Interfaces/clip1.crow b/Tests/Interfaces/clip1.crow
new file mode 100755
index 00000000..a4f42b10
--- /dev/null
+++ b/Tests/Interfaces/clip1.crow
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<Container Fit="true" Margin="20" Background="SkyBlue" CacheEnabled="true"
+		HorizontalAlignment="Right" VerticalAlignment="Bottom"
+		MouseEnter="{Background=LightGray}"
+		MouseLeave="{Background=SkyBlue}">
+		<Container Fit="true" Margin="20" Background="Red" CacheEnabled="true"
+			HorizontalAlignment="Right" VerticalAlignment="Bottom"
+			MouseEnter="{Background=White}"
+			MouseLeave="{Background=Red}">
+			<Container Fit="true" Margin="20" Background="Yellow" CacheEnabled="true"
+				HorizontalAlignment="Right" VerticalAlignment="Bottom"
+				MouseEnter="{Background=Blue}"
+				MouseLeave="{Background=Yellow}">
+				<Container Margin="50" Background="LimeGreen" CacheEnabled="false"
+						HorizontalAlignment="Right" VerticalAlignment="Bottom"
+						MouseEnter="{Background=Gray}"
+						MouseLeave="{Background=LimeGreen}">
+					<Label  HorizontalAlignment="Center" VerticalAlignment="Center" CacheEnabled="true"
+						MouseEnter="{Background=DimGray}"
+						MouseLeave="{Background=BlueCrayola}" 
+					 	Margin="1" Text="{drawing}" Background="BlueCrayola"/>
+				</Container>
+			</Container>
+		</Container>
+ </Container>
\ No newline at end of file
diff --git a/Tests/Tests.csproj b/Tests/Tests.csproj
index cbb628a7..0fe3ffa1 100644
--- a/Tests/Tests.csproj
+++ b/Tests/Tests.csproj
@@ -224,6 +224,12 @@
     <None Include="Interfaces\testStacks.crow">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Include="Interfaces\clip0.crow">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Include="Interfaces\clip1.crow">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Interfaces\" />
diff --git a/src/GraphicObjects/GraphicObject.cs b/src/GraphicObjects/GraphicObject.cs
index 14516dba..699d39a9 100644
--- a/src/GraphicObjects/GraphicObject.cs
+++ b/src/GraphicObjects/GraphicObject.cs
@@ -31,6 +31,9 @@ namespace Crow
 		internal List<Binding> Bindings = new List<Binding> ();
 		internal int layoutingTries = 0;
 
+		Rectangles _clipping = new Rectangles();
+		public Rectangles Clipping { get { return _clipping; }}
+
 		#region IValueChange implementation
 		public event EventHandler<ValueChangeEventArgs> ValueChanged;
 		public virtual void NotifyValueChanged(string MemberName, object _value)
@@ -121,15 +124,7 @@ namespace Crow
 		[XmlIgnore]public ILayoutable Parent { 
 			get { return _parent; }
 			set {
-//				if (_parent == value)
-//					return;
-//				if (_parent != null)
-//					ClearBinding ();
-//				
 				_parent = value;
-//
-//				if (DataSource != null)
-//					ResolveBindings ();
 			}
 		}
 
@@ -150,20 +145,14 @@ namespace Crow
 		}
 		public virtual Rectangle ContextCoordinates(Rectangle r){
 			return
-				Parent.ContextCoordinates (r);// + ClientRectangle.Position;
+				Parent.ContextCoordinates (r);
 		}			
 		public virtual Rectangle ScreenCoordinates (Rectangle r){
 			return 
 				Parent.ScreenCoordinates(r) + Parent.getSlot().Position + Parent.ClientRectangle.Position;
 		}
-		public virtual Rectangle getSlot()
-		{
-			return Slot;
-		}
-		public virtual Rectangle getBounds()
-		{
-			return Bounds;
-		}
+		public virtual Rectangle getSlot() => Slot;
+		public virtual Rectangle getBounds() => Bounds;
 		#endregion
 
 		#region EVENT HANDLERS
@@ -478,14 +467,22 @@ namespace Crow
 		public virtual bool Contains(GraphicObject goToFind){
 			return false;
 		}
-
-		public virtual void registerClipRect()
-		{
-			HostContainer.redrawClip.AddRectangle (ScreenCoordinates(Slot));
+		public void RegisterClip(Rectangle clip){
+			Rectangle r = Slot + Parent.ClientRectangle;
+			if (CacheEnabled && bmp != null)
+				Clipping.AddRectangle (r);				
+			Parent.RegisterClip (r);
+		}
+//		public virtual void registerClipRect(Rectangle clip)
+//		{
+//			Rectangle tmp = ContextCoordinates (clip);
+//			if (CacheEnabled) {
+//			}
+			//HostContainer.redrawClip.AddRectangle (ScreenCoordinates(Slot));
 			//this clipping should take only last painted slots on each level in ancestor tree which
 			//is not the case for now.
-			HostContainer.redrawClip.AddRectangle (ScreenCoordinates(LastPaintedSlot));
-		}
+			//HostContainer.redrawClip.AddRectangle (ScreenCoordinates(LastPaintedSlot));
+		//}
 		/// <summary>
 		/// Clear chached object and add clipping region in redraw list of interface
 		/// </summary>
@@ -754,7 +751,7 @@ namespace Crow
 		}
 		/// <summary> Chained painting routine on the parent context of the actual cached version
 		/// of the widget </summary>
-		public virtual void Paint (ref Context ctx, Rectangles clip = null)
+		public virtual void Paint (ref Context ctx)
 		{
 			if (!Visible)
 				return;
@@ -771,24 +768,25 @@ namespace Crow
 			if (cacheEnabled) {
 				if (bmp == null)
 					UpdateGraphic ();
-
 				using (ImageSurface source = new ImageSurface (bmp, Format.Argb32, Slot.Width, Slot.Height, 4 * Slot.Width)) {
-					//TODO:improve equality test for basic color and Fill
-					if (this.Background is SolidColor) {
-						if ((this.Background as SolidColor).Equals (Color.Clear)) {
-							ctx.Save ();
-							ctx.Operator = Operator.Clear;
-							ctx.Rectangle (rb);
-							ctx.Fill ();
-							ctx.Restore ();
-						}
-					}
+//					//TODO:improve equality test for basic color and Fill
+//					if (this.Background is SolidColor) {
+//						if ((this.Background as SolidColor).Equals (Color.Clear)) {
+//							ctx.Save ();
+//							ctx.Operator = Operator.Clear;
+//							ctx.Rectangle (rb);
+//							ctx.Fill ();
+//							ctx.Restore ();
+//						}
+//					}
 					ctx.SetSourceSurface (source, rb.X, rb.Y);
 					ctx.Paint ();
 				}
 				return;
 			}
 			ctx.Save ();
+
+			Clipping.clearAndClip (ctx);
 			ctx.Translate (rb.X, rb.Y);
 			onDraw (ctx);
 			ctx.Restore ();
diff --git a/src/GraphicObjects/Group.cs b/src/GraphicObjects/Group.cs
index 9d9abbc6..33fe006d 100644
--- a/src/GraphicObjects/Group.cs
+++ b/src/GraphicObjects/Group.cs
@@ -217,53 +217,42 @@ namespace Crow
 			}
 		}
 
-		public override void Paint(ref Context ctx, Rectangles clip = null)
+		public override void Paint(ref Context ctx)
 		{
 			if ( !Visible )
 				return;
 
-			if (bmp == null)
-				UpdateGraphic ();
-			else {
-				if (clip != null)
-					clip.Rebase (this);									
-				else {
-					clip = new Rectangles ();
-					//TODO:added lately slot to empty clip,
-					//should rework this precise case causing expandable not
-					//to show image changes
-					clip.AddRectangle (ContextCoordinates (Slot.Size));
-				}
-
-				if (!DrawingIsValid || clip != null) {//false when 1 child has changed
-					//child having their content changed has to be repainted
-					//and those with slot intersecting clip rectangle have also to be repainted
+			if (CacheEnabled) {
+				if (bmp == null)
+					RecreateCache ();
+			}
 
-					using (ImageSurface cache =
-						      new ImageSurface (bmp, Format.Argb32, Slot.Width, Slot.Height, Slot.Width * 4)) {
-						Context gr = new Context (cache);
-						clip.clearAndClip (gr);
+			if (Clipping.count > 0) {
+				using (ImageSurface cache =
+					       new ImageSurface (bmp, Format.Argb32, Slot.Width, Slot.Height, Slot.Width * 4)) {
+					Context gr = new Context (cache);
 
-						Rectangle rBack = Slot.Size;
-						Background.SetAsSource (gr, rBack);
-						CairoHelpers.CairoRectangle(gr, rBack, CornerRadius);
-						gr.Fill ();
+					Clipping.clearAndClip (gr);
+					Rectangle rBack = Slot.Size;
+					Background.SetAsSource (gr, rBack);
+					CairoHelpers.CairoRectangle (gr, rBack, CornerRadius);
+					gr.Fill ();
 
-						#if DEBUG_CLIP_RECTANGLE
-						clip.stroke (gr, Color.Amaranth.AdjustAlpha (0.8));
-						#endif
-						foreach (GraphicObject c in children.Where(ch=>ch.Visible)) {
-							Rectangles childClip = clip.intersectingRects (ContextCoordinates(c.Slot));
-							if (!c.DrawingIsValid || childClip.count > 0)
-								c.Paint (ref gr, childClip);//, localClip);
-						}
-
-						gr.Dispose ();
+					foreach (GraphicObject c in children) {
+						if (!c.Visible)
+							continue;
+						Rectangles childClip = Clipping.intersectingRects (ContextCoordinates (c.Slot));
+						if (childClip.count > 0)
+							c.Paint (ref ctx);						
 					}
+					#if DEBUG_CLIP_RECTANGLE
+					Clipping.stroke (gr, Color.Amaranth.AdjustAlpha (0.8));
+					#endif
+
+					gr.Dispose ();
 				}
-			}
-				
-			base.Paint (ref ctx, clip);
+			}				
+			base.Paint (ref ctx);
 		}
 		#endregion
 
diff --git a/src/GraphicObjects/ILayoutable.cs b/src/GraphicObjects/ILayoutable.cs
index 54e54f03..bbf1b4a6 100644
--- a/src/GraphicObjects/ILayoutable.cs
+++ b/src/GraphicObjects/ILayoutable.cs
@@ -21,6 +21,7 @@ namespace Crow
 
 		LayoutingType RegisteredLayoutings { get; set; }
 		void RegisterForLayouting(LayoutingType layoutType);
+		void RegisterClip(Rectangle clip);
 		bool UpdateLayout(LayoutingType layoutType);
 
 
diff --git a/src/GraphicObjects/PrivateContainer.cs b/src/GraphicObjects/PrivateContainer.cs
index 9f787eac..63f4f02a 100644
--- a/src/GraphicObjects/PrivateContainer.cs
+++ b/src/GraphicObjects/PrivateContainer.cs
@@ -139,24 +139,21 @@ namespace Crow
 			return
 				Parent.ContextCoordinates(r) + Slot.Position + ClientRectangle.Position;
 		}
-		public override void Paint(ref Cairo.Context ctx, Rectangles clip = null)
+		public override void Paint(ref Cairo.Context ctx)
 		{
 			if (!Visible)//check if necessary??
 				return;
 
 			ctx.Save();
 
-			if (clip != null)
-				clip.clip(ctx);
-
-			base.Paint(ref ctx, clip);
+			base.Paint(ref ctx);
 
 			//clip to client zone
 			CairoHelpers.CairoRectangle (ctx, Parent.ContextCoordinates(ClientRectangle + Slot.Position), CornerRadius);
 			ctx.Clip();
 
 			if (child != null)
-				child.Paint(ref ctx, clip);
+				child.Paint(ref ctx);
 
 			ctx.Restore();            
 		}
diff --git a/src/GraphicObjects/Scroller.cs b/src/GraphicObjects/Scroller.cs
index 3ac8d66c..599f951f 100644
--- a/src/GraphicObjects/Scroller.cs
+++ b/src/GraphicObjects/Scroller.cs
@@ -188,10 +188,10 @@ namespace Crow
 			return base.ScreenCoordinates (r) - new Point((int)ScrollX,(int)ScrollY);
 		}
 
-		public override void registerClipRect ()
-		{
-			HostContainer.redrawClip.AddRectangle (base.ScreenCoordinates(Slot));
-		}
+//		public override void registerClipRect ()
+//		{
+//			HostContainer.redrawClip.AddRectangle (base.ScreenCoordinates(Slot));
+//		}
 
 
     }
diff --git a/src/GraphicObjects/Window.cs b/src/GraphicObjects/Window.cs
index d98d296c..726f858a 100644
--- a/src/GraphicObjects/Window.cs
+++ b/src/GraphicObjects/Window.cs
@@ -89,7 +89,7 @@ namespace Crow
 				if (!HasFocus)
 					return;
 				
-				otkgw.redrawClip.AddRectangle (this.ScreenCoordinates(this.Slot));
+				//otkgw.redrawClip.AddRectangle (this.ScreenCoordinates(this.Slot));
 
 				int currentLeft = this.Left;
 				int currentTop = this.Top;
diff --git a/src/OpenTKGameWindow.cs b/src/OpenTKGameWindow.cs
index 16362c6c..e6fc9681 100644
--- a/src/OpenTKGameWindow.cs
+++ b/src/OpenTKGameWindow.cs
@@ -90,7 +90,7 @@ namespace Crow
 			{
 				GraphicObjects.Remove(g);
 				GraphicObjects.Insert(0, g);
-				g.registerClipRect ();
+				//g.registerClipRect ();
 			}
 		}
 		public void Quit ()
@@ -282,14 +282,15 @@ namespace Crow
 					gobjsToRedraw.Clear ();
 					foreach (GraphicObject p in gotr) {
 						p.IsQueuedForRedraw = false;
-						p.registerClipRect ();
+						p.RegisterClip (p.LastPaintedSlot);
+						p.RegisterClip (p.getSlot());
 					}
 
 					#if MEASURE_TIME
 					updateTime.Stop ();
 					drawingTime.Start ();
 					#endif
-
+					Debug.WriteLine (redrawClip.ToString ());
 					lock (redrawClip) {
 						if (redrawClip.count > 0) {
 							#if DEBUG_CLIP_RECTANGLE
@@ -299,17 +300,18 @@ namespace Crow
 
 							//Link.draw (ctx);
 							foreach (GraphicObject p in invGOList) {
-								if (p.Visible) {
+								if (!p.Visible)
+									continue;
+
+								ctx.Save ();
+
+								Rectangles clip = redrawClip.intersectingRects (p.Slot);
 
-									ctx.Save ();
-									if (redrawClip.count > 0) {
-										Rectangles clip = redrawClip.intersectingRects (p.Slot);
+								if (clip.count > 0)
+									p.Paint (ref ctx);
+								
+								ctx.Restore ();
 
-										if (clip.count > 0)
-											p.Paint (ref ctx, clip);
-									}
-									ctx.Restore ();
-								}
 							}
 							ctx.ResetClip ();
 							#if DEBUG_CLIP_RECTANGLE
@@ -549,6 +551,9 @@ namespace Crow
         #endregion
 
 		#region ILayoutable implementation
+		public void RegisterClip(Rectangle r){
+			redrawClip.AddRectangle (r);
+		}
 		public int LayoutingTries {
 			get { throw new NotImplementedException (); }
 			set { throw new NotImplementedException (); }
@@ -559,17 +564,13 @@ namespace Crow
 		}
 		public void RegisterForLayouting (LayoutingType layoutType) { throw new NotImplementedException (); }
 		public bool UpdateLayout (LayoutingType layoutType) { throw new NotImplementedException (); }
-		public Rectangle ContextCoordinates (Rectangle r)
-		{
-			return r;
-		}
+		public Rectangle ContextCoordinates (Rectangle r) => r;
 		public Rectangle ScreenCoordinates (Rectangle r) => r;
 
 		public ILayoutable Parent {
 			get { return null; }
 			set { throw new NotImplementedException (); }
 		}
-
 		public ILayoutable LogicalParent {
 			get { return null; }
 			set { throw new NotImplementedException (); }
@@ -581,15 +582,8 @@ namespace Crow
 		public IGOLibHost HostContainer {
 			get { return this; }
 		}
-
-		public Rectangle getSlot ()
-		{
-			return ClientRectangle;
-		}
-		public Rectangle getBounds ()//redundant but fill ILayoutable implementation
-		{
-			return ClientRectangle;
-		}			
+		public Rectangle getSlot () => ClientRectangle;
+		public Rectangle getBounds () => ClientRectangle;
 		#endregion
     }
 }
\ No newline at end of file
diff --git a/src/Rectangles.cs b/src/Rectangles.cs
index dbb4118b..c507b2ba 100644
--- a/src/Rectangles.cs
+++ b/src/Rectangles.cs
@@ -147,6 +147,8 @@ namespace Crow
 		}
         public void clearAndClip(Context ctx)
         {
+			if (list.Count == 0)
+				return;
             foreach (Rectangle r in list)
                 ctx.Rectangle(r);