From d6e894025ca1d21e85da60c39ccf9ed4229a6bba Mon Sep 17 00:00:00 2001
From: jpbruyere <jp.bruyere@hotmail.com>
Date: Fri, 12 Feb 2016 15:41:56 +0100
Subject: [PATCH] debug scrolling in new Clipping system

---
 Tests/Interfaces/clip4.crow         | 32 ++++++++++++++++++++++++++---
 src/GraphicObjects/GraphicObject.cs |  2 +-
 src/GraphicObjects/Scroller.cs      | 30 ++++++++++++++++++++++-----
 3 files changed, 55 insertions(+), 9 deletions(-)

diff --git a/Tests/Interfaces/clip4.crow b/Tests/Interfaces/clip4.crow
index c38e95ac..eb16a88b 100755
--- a/Tests/Interfaces/clip4.crow
+++ b/Tests/Interfaces/clip4.crow
@@ -1,7 +1,33 @@
 <?xml version="1.0"?>
-<Border Fit="true" Margin="50" Background="DimGray" CornerRadius="20">
-	<Label Margin="50" Text="fpsklhlkjh" Background="BlueCrayola"/>	
-</Border>
+<Scroller CacheEnabled="false" VerticalScrolling="true" Height="100" Width="300" Background="DimGray" Margin="20">
+	<VerticalStack Margin="10" VerticalAlignment="Top" Fit="true" Background="vgradient|0:BlueCrayola|1:Black">
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 1"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 2"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 3"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 4"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 5"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 6"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 7"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 8"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 9"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 10"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 11"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 12"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 13"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 14"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 15"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 16"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 17"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 18"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 19"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 20"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 21"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 22"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 23"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 24"/>
+		 <Label Margin="5" Background="hgradient|0:DarkRed|1:Transparent" Font="droid,20" Text="label 25"/>
+	</VerticalStack>
+</Scroller>
 <!--<VerticalStack Fit="true" Margin="50" Background="LimeGreen" CacheEnabled="false"
 		HorizontalAlignment="Right" VerticalAlignment="Bottom"
 		MouseEnter="{Background=Gray}"
diff --git a/src/GraphicObjects/GraphicObject.cs b/src/GraphicObjects/GraphicObject.cs
index 7cb4a723..24fd852a 100644
--- a/src/GraphicObjects/GraphicObject.cs
+++ b/src/GraphicObjects/GraphicObject.cs
@@ -471,7 +471,7 @@ namespace Crow
 		public virtual bool Contains(GraphicObject goToFind){
 			return false;
 		}
-		public void RegisterClip(Rectangle clip){			
+		public virtual void RegisterClip(Rectangle clip){			
 			if (CacheEnabled && bmp != null)
 				Clipping.AddRectangle (clip + ClientRectangle.Position);
 			Parent.RegisterClip (clip + Slot.Position + ClientRectangle.Position);
diff --git a/src/GraphicObjects/Scroller.cs b/src/GraphicObjects/Scroller.cs
index 599f951f..e27eedff 100644
--- a/src/GraphicObjects/Scroller.cs
+++ b/src/GraphicObjects/Scroller.cs
@@ -100,6 +100,11 @@ namespace Crow
             : base(){}
 
 		#region GraphicObject Overrides
+		[XmlAttributeAttribute()][DefaultValue(false)]
+		public override bool CacheEnabled {
+			get { return base.CacheEnabled; }
+			set { base.CacheEnabled = value; }
+		}
 		void OnChildLayoutChanges (object sender, LayoutingEventArgs arg)
 		{
 			int maxScroll = MaximumScroll;
@@ -177,17 +182,32 @@ namespace Crow
 			savedMousePos.Y += e.YDelta;
 			base.onMouseMove (sender, new MouseMoveEventArgs(savedMousePos.X,savedMousePos.Y,e.XDelta,e.YDelta));
 		}
-		#endregion
-
-		public override Rectangle ContextCoordinates (Rectangle r)
+		public override void RegisterClip (Rectangle clip)
 		{
-			return base.ContextCoordinates (r) - new Point((int)ScrollX,(int)ScrollY);
+			base.RegisterClip (clip - new Point((int)ScrollX,(int)ScrollY));
 		}
+		#endregion
+
 		public override Rectangle ScreenCoordinates (Rectangle r)
 		{
 			return base.ScreenCoordinates (r) - new Point((int)ScrollX,(int)ScrollY);
 		}
-
+//		protected override void onDraw (Context gr)
+//		{
+//			gr.Save ();
+//			//gr.ResetClip ();
+//
+//			base.onDraw (gr);
+//			gr.Restore ();
+//		}
+		public override void Paint (ref Context ctx)
+		{
+			ctx.Save ();
+			//ctx.ResetClip ();
+			ctx.Translate (-ScrollX, -ScrollY);
+			base.Paint (ref ctx);
+			ctx.Restore ();
+		}
 //		public override void registerClipRect ()
 //		{
 //			HostContainer.redrawClip.AddRectangle (base.ScreenCoordinates(Slot));
-- 
2.47.3