splitted measure with fault checking, changing default template sizing to 0, lots of bugs.

40 files changed, 383 insertions, 235 deletions

diff --git a/Crow.csproj b/Crow.csproj
index 6d0c6d3a..05f0841d 100644
--- a/Crow.csproj
+++ b/Crow.csproj
@@ -137,6 +137,7 @@
     <Compile Include="src\GraphicObjects\TreeView.cs" />
     <Compile Include="src\GraphicObjects\TabView.cs" />
     <Compile Include="src\GraphicObjects\TabItem.cs" />
+    <Compile Include="src\GraphicObjects\DummyTemplate.cs" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -229,6 +230,7 @@
     <EmbeddedResource Include="Templates\TreeView.crow" />
     <EmbeddedResource Include="Templates\TabItem.crow" />
     <EmbeddedResource Include="Templates\TreeItem.crow" />
+    <EmbeddedResource Include="Templates\Dummy.goml" />
   </ItemGroup>
   <ItemGroup>
     <None Include="README.md" />
diff --git a/Templates/ArrowButTemplate.crow b/Templates/ArrowButTemplate.crow
index c90f1b60..942c9f75 100755
--- a/Templates/ArrowButTemplate.crow
+++ b/Templates/ArrowButTemplate.crow
@@ -5,7 +5,7 @@
 </HorizontalStack>-->
 <Border Name="Content"
 	Background="vgradient|0:White|0,1:LightGray|0,9:LightGray|1:Black" Foreground="DarkGray" 
-	Height="{../TemplatedHeight}" Width="{../TemplatedWidth}"
+	Height="{../HeightPolicy}" Width="{../WidthPolicy}"
 	MouseEnter="{Foreground=White}"
 	MouseLeave="{Foreground=DarkGray}"
 	MouseDown="{Background=vgradient|0:Black|0,1:LightGray|0,9:LightGray|1:White}"
diff --git a/Templates/Button.crow b/Templates/Button.crow
index 75decb21..76d5dd8e 100755
--- a/Templates/Button.crow
+++ b/Templates/Button.crow
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<Border Background="{../Background}" MinimumSize="50;20" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}"
+<Border Background="{../Background}" MinimumSize="50;20" Height="{../HeightPolicy}" Width="{../WidthPolicy}"
 		Foreground="Transparent" CornerRadius="{../CornerRadius}" BorderWidth="1" 
 	MouseEnter="{Foreground=vgradient|0:White|0,2:Gray|0,9:Gray|1:Black;caption.Foreground=White}"
 	MouseLeave="{Foreground=Transparent;caption.Foreground=DimGray}"
diff --git a/Templates/CheckBox.goml b/Templates/CheckBox.goml
index 5f5807aa..ffdb2202 100755
--- a/Templates/CheckBox.goml
+++ b/Templates/CheckBox.goml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<HorizontalStack Spacing="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-	<Image Margin="2" Width="14" Height="14" Path="{../../Image}" SvgSub="{../../SvgSub}"/>
-	<Label Text="{../../Caption}" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}"/>
+<HorizontalStack Spacing="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+	<Image Background="Red" Margin="2" Width="14"  Height="14" Path="{../../Image}" SvgSub="{../../SvgSub}"/>
+	<Label Background="Blue" Text="{../../Caption}" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}"/>
 </HorizontalStack>
\ No newline at end of file
diff --git a/Templates/ComboBox.goml b/Templates/ComboBox.goml
index 7af1e2d3..7a735307 100755
--- a/Templates/ComboBox.goml
+++ b/Templates/ComboBox.goml
@@ -1,11 +1,11 @@
 <?xml version="1.0"?>
-<Popper Name="popper" PopDirection="Bottom" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
+<Popper Name="popper" PopDirection="Bottom" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
 	<Template>
-		<Border CornerRadius="0" Foreground="LightGray" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-			<HorizontalStack Margin="1" Spacing="1" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
+		<Border CornerRadius="0" Foreground="LightGray" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+			<HorizontalStack Margin="1" Spacing="1" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
 				<TextBox MinimumSize="80;10" Margin="1" Foreground="Black" Background="White"
 					Text="{../../../../SelectedItem}" Focusable="true"
-					Height="{../../../../TemplatedHeight}" Width="{../../../../TemplatedWidth}"/>
+					Height="{../../../../HeightPolicy}" Width="{../../../../WidthPolicy}"/>
 				<Button Width="14" Height="14" MouseClick="../../../onMouseClick"
 					Template="#Crow.Templates.ArrowButTemplate.crow">
 					<Image Margin="0"  Path="#Crow.Images.Icons.updown.svg" SvgSub="down"/>
diff --git a/Templates/Dummy.goml b/Templates/Dummy.goml
new file mode 100755
index 00000000..cfd82865
--- /dev/null
+++ b/Templates/Dummy.goml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!--<Group Margin="5" Background="Red" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+<Label Margin="0" Text="DUMMY2" Background="Green" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}"/>
+</Group>-->
+<HorizontalStack Margin="5" Background="Red" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+	<Label Margin="0" Text="DUMMY" Background="Blue" Height="{../../HeightPolicy}" Width="20"/>
+	<Label Margin="0" Text="DUMMY2" Background="Green" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}"/>
+</HorizontalStack>
diff --git a/Templates/Expandable.goml b/Templates/Expandable.goml
index 427c1880..b2465abb 100755
--- a/Templates/Expandable.goml
+++ b/Templates/Expandable.goml
@@ -1,11 +1,11 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Foreground="LightGray" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" 
+<Border BorderWidth="1" Foreground="LightGray" Height="{../HeightPolicy}" Width="{../WidthPolicy}" 
 		MouseClick="../onMouseClick">
-	<VerticalStack Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
-		<HorizontalStack Spacing="1" Height="-1" Width="{../../../TemplatedWidth}">
+	<VerticalStack Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
+		<HorizontalStack Spacing="1" Height="-1" Width="{../../../WidthPolicy}">
 			<Image Margin="2" Width="12" Height="12" Path="{../../../../Image}" SvgSub="{../../../../SvgSub}"/>
-			<Label Text="{../../../../Caption}" Width="{../../../../TemplatedWidth}"/>
+			<Label Text="{../../../../Caption}" Width="{../../../../WidthPolicy}"/>
 		</HorizontalStack>
-		<Container Name="Content" Visible="false" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}"/>
+		<Container Background="Red" Name="Content" Visible="false" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}"/>
 	</VerticalStack>
 </Border>
\ No newline at end of file
diff --git a/Templates/GroupBox.goml b/Templates/GroupBox.goml
index b92ee8b2..5b042429 100755
--- a/Templates/GroupBox.goml
+++ b/Templates/GroupBox.goml
@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
-<Group Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
+<Group Height="{../HeightPolicy}" Width="{../WidthPolicy}">
 	<Border CornerRadius="5" BorderWidth="1" Margin="6" Foreground="{../../Foreground}"
-		Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
+		Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
 		<Container Name="Content" Margin="10"
-				Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}"/>
+				Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}"/>
 	</Border>
 	<Label Text="{../../Caption}" VerticalAlignment="Top" Left="15"
 		Background="Clear" Margin="1"/>
diff --git a/Templates/ListBox.goml b/Templates/ListBox.goml
index 5d8122e0..fa8d514e 100755
--- a/Templates/ListBox.goml
+++ b/Templates/ListBox.goml
@@ -1,8 +1,8 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Margin="1" MinimumSize="20;20" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" >
+<Border BorderWidth="1" Margin="1" MinimumSize="20;20" Height="{../HeightPolicy}" Width="{../WidthPolicy}" >
 	<Scroller  Name="scroller1" Margin="1" VerticalScrolling="true"
-		Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
+		Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
 		<VerticalStack LayoutChanged="../../../_list_LayoutChanged"
-			Height="-1" Width="{../../../TemplatedWidth}" Name="List" Margin="0" VerticalAlignment="Top"/>
+			Height="-1" Width="{../../../WidthPolicy}" Name="List" Margin="0" VerticalAlignment="Top"/>
 	</Scroller>
 </Border>
\ No newline at end of file
diff --git a/Templates/MessageBox.goml b/Templates/MessageBox.goml
index 7620645a..fe6ce620 100644
--- a/Templates/MessageBox.goml
+++ b/Templates/MessageBox.goml
@@ -1,12 +1,12 @@
 <?xml version="1.0"?>
-<Border Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" BorderWidth="1" Foreground="White" CornerRadius="10" >
-	<VerticalStack Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}" Background="0,4;0,4;0,4;0,4">
-		<Border BorderWidth="1" Foreground="White" Width="{../../../TemplatedWidth}" Height="-1" 
+<Border Height="{../HeightPolicy}" Width="{../WidthPolicy}" BorderWidth="1" Foreground="White" CornerRadius="10" >
+	<VerticalStack Height="{../../HeightPolicy}" Width="{../../WidthPolicy}" Background="0,4;0,4;0,4;0,4">
+		<Border BorderWidth="1" Foreground="White" Width="{../../../WidthPolicy}" Height="-1" 
 				Background="0,1;0,5;1,0;0,5">
-			<HorizontalStack Name="hs" Margin="1" Spacing="1" Width="{../../../../TemplatedWidth}" Height="-1" >
+			<HorizontalStack Name="hs" Margin="1" Spacing="1" Width="{../../../../WidthPolicy}" Height="-1" >
 				<GraphicObject Width="5" Height="5"/>
 				<Image Margin="1" Width="12" Height="12" Path="{../../../../../Icon}"/>
-				<Label Foreground="White" Width="{../../../../../TemplatedWidth}" Margin="1" TextAlignment="Center" Text="{../../../../../Title}" />
+				<Label Foreground="White" Width="{../../../../../WidthPolicy}" Margin="1" TextAlignment="Center" Text="{../../../../../Title}" />
 				<Border CornerRadius="6" BorderWidth="1" Foreground="Transparent"  Height="12" Width="12"
 					MouseEnter="{Foreground=White}" MouseLeave="{Foreground=Transparent}">
 					<Image Focusable="true" Name="Image" Margin="0" Width="0" Height="0" Path="#Crow.Images.Icons.exit2.svg"
@@ -15,13 +15,13 @@
 				<GraphicObject Width="5" Height="5"/>
 			</HorizontalStack>
 		</Border>
-		<HorizontalStack Spacing="3" Margin="3" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}">
+		<HorizontalStack Spacing="3" Margin="3" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}">
 			<Image Name="Image" Width="24" Height="24"
 				Path="#Crow.Images.Icons.iconInfo.svg" />
-			<TextRun Font="serif, 12" Height="{../../../../TemplatedHeight}" Width="{../../../../TemplatedWidth}" Text="{../../../../Message}"
+			<TextRun Font="serif, 12" Height="{../../../../HeightPolicy}" Width="{../../../../WidthPolicy}" Text="{../../../../Message}"
 				Multiline="true" WordWrap="true"/>		
 		</HorizontalStack>
-		<HorizontalStack Height="-1" Width="{../../../TemplatedWidth}" Margin="3">
+		<HorizontalStack Height="-1" Width="{../../../WidthPolicy}" Margin="3">
 			<GraphicObject Height="5"/>
 			<Button Caption="Ok"/>
 			<Button Caption="Cancel"/>
diff --git a/Templates/Popper.goml b/Templates/Popper.goml
index 42a81d1d..9fd80681 100755
--- a/Templates/Popper.goml
+++ b/Templates/Popper.goml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Foreground="LightGray" Height="-1" Width="{../TemplatedWidth}">
-	<HorizontalStack Spacing="1" Height="-1"  Width="{../../TemplatedWidth}">
+<Border BorderWidth="1" Foreground="LightGray" Height="-1" Width="{../WidthPolicy}">
+	<HorizontalStack Spacing="1" Height="-1"  Width="{../../WidthPolicy}">
 		<Image Margin="2" Width="12" Height="12" Path="{../../../Image}" SvgSub="{../../../SvgSub}"/>
-		<Label Text="{../../../Caption}"  Width="{../../../TemplatedWidth}"/>
+		<Label Text="{../../../Caption}"  Width="{../../../WidthPolicy}"/>
 	</HorizontalStack>
 </Border>
\ No newline at end of file
diff --git a/Templates/RadioButton.goml b/Templates/RadioButton.goml
index 5f5807aa..b69331be 100755
--- a/Templates/RadioButton.goml
+++ b/Templates/RadioButton.goml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<HorizontalStack Spacing="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
+<HorizontalStack Spacing="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
 	<Image Margin="2" Width="14" Height="14" Path="{../../Image}" SvgSub="{../../SvgSub}"/>
-	<Label Text="{../../Caption}" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}"/>
+	<Label Text="{../../Caption}" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}"/>
 </HorizontalStack>
\ No newline at end of file
diff --git a/Templates/ScrollBar.goml b/Templates/ScrollBar.goml
index b643c36b..ffcc121e 100755
--- a/Templates/ScrollBar.goml
+++ b/Templates/ScrollBar.goml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Foreground="LightGray" Width="{../TemplatedWidth}" Height="{../TemplatedHeight}">
+<Border BorderWidth="1" Foreground="LightGray" Width="{../WidthPolicy}" Height="{../HeightPolicy}">
 	<GenericStack Orientation="{../../Orientation}" Spacing="0"
-		Width="{../../TemplatedWidth}" Height="{../../TemplatedHeight}">
+		Width="{../../WidthPolicy}" Height="{../../HeightPolicy}">
 		<Button MouseRepeat="true" Width="12" Height="12" MouseClick="../../../onScrollBack"
 			Template="#Crow.Templates.ArrowButTemplate.crow">
 			<Image Margin="1" Path="#Crow.Images.Icons.updown.svg" SvgSub="up"/>
@@ -13,7 +13,7 @@
 			LargeIncrement="{../../../LargeIncrement}"
 			SmallIncrement="{../../../SmallIncrement}"
 			Background="hgradient|0:DimGray|0,1:Gray|0,95:Gray|1:White"
-			Width="{../../../TemplatedWidth}" Height="{../../../TemplatedHeight}"
+			Width="{../../../WidthPolicy}" Height="{../../../HeightPolicy}"
 			ValueChanged="../../../onSliderValueChange"/>
 		<Button MouseRepeat="true" Width="12" Height="12" MouseClick="../../../onScrollForth"
 			Template="#Crow.Templates.ArrowButTemplate.crow">
diff --git a/Templates/ScrollingListBox.goml b/Templates/ScrollingListBox.goml
index 0de4bf26..5f50929f 100644
--- a/Templates/ScrollingListBox.goml
+++ b/Templates/ScrollingListBox.goml
@@ -1,15 +1,15 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-	<HorizontalStack Margin="1" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}" >
-		<Scroller Name="scroller1" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}" 
+<Border BorderWidth="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+	<HorizontalStack Margin="1" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}" >
+		<Scroller Name="scroller1" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}" 
 				Margin="2" VerticalScrolling="true" ScrollY="{../scrollbar1.Value}"
 				ValueChanged="../../../_scroller_ValueChanged">
-			<VerticalStack Width="{../../../../TemplatedWidth}" Height="-1" MinimumSize="100;100"
+			<VerticalStack Width="{../../../../WidthPolicy}" Height="-1" MinimumSize="100;100"
 				Name="List" Margin="0" VerticalAlignment="Top"
 				LayoutChanged="../../../../_list_LayoutChanged"/>
 		</Scroller>
 		<ScrollBar Name="scrollbar1" Value="{../scroller1.ScrollY}" 
 			Maximum="{../scroller1.MaximumScroll}" Orientation="Vertical" 
-			Width="14" Height="{../../../TemplatedHeight}" />
+			Width="14" Height="{../../../HeightPolicy}" />
 	</HorizontalStack>
 </Border>
\ No newline at end of file
diff --git a/Templates/Spinner.goml b/Templates/Spinner.goml
index bd202c1a..b8fbf832 100755
--- a/Templates/Spinner.goml
+++ b/Templates/Spinner.goml
@@ -1,11 +1,11 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}"
+<Border BorderWidth="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}"
 	Foreground="Gray"
 	Background="White">
-	<HorizontalStack Name="hstack" Margin="0" Spacing="2" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
-		<Label Foreground="DimGray" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}" 
+	<HorizontalStack Name="hstack" Margin="0" Spacing="2" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
+		<Label Foreground="DimGray" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}" 
 			Text="{../../../Value}" Margin="1" TextAlignment="Right"/>
-		<VerticalStack Width="-1" Height="{../../../TemplatedHeight}" Spacing="0" >
+		<VerticalStack Width="-1" Height="{../../../HeightPolicy}" Spacing="0" >
 			<Button MouseRepeat="true" Width="12" Height="8" MouseClick="../../../../onUp"
 				Template="#Crow.Templates.ArrowButTemplate.crow">
 				<Image Margin="1" Path="#Crow.Images.Icons.updown.svg" SvgSub="up"/>
diff --git a/Templates/TreeItem.crow b/Templates/TreeItem.crow
index 037736a9..b3458ec1 100644
--- a/Templates/TreeItem.crow
+++ b/Templates/TreeItem.crow
@@ -6,26 +6,26 @@
 </Container>-->

 <Expandable Caption="{}">

 	<Template>

-		<Border BorderWidth="1" Foreground="LightGray" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" 

+		<Border BorderWidth="1" Foreground="LightGray" Height="{../HeightPolicy}" Width="{../WidthPolicy}" 

 			MouseClick="../onMouseClick">

-			<VerticalStack Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">

-				<HorizontalStack Spacing="1" Height="-1" Width="{../../../TemplatedWidth}">

+			<VerticalStack Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">

+				<HorizontalStack Spacing="1" Height="-1" Width="{../../../WidthPolicy}">

 					<Image Margin="2" Width="12" Height="12" Path="{../../../../Image}" SvgSub="{../../../../SvgSub}"/>

-					<Label Text="{../../../../Caption}" Width="{../../../../TemplatedWidth}"/>

+					<Label Text="{../../../../Caption}" Width="{../../../../WidthPolicy}"/>

 				</HorizontalStack>

-				<Container Name="Content" Visible="false" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}"/>

+				<Container Name="Content" Visible="false" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}"/>

 			</VerticalStack>

 		</Border>

 	</Template>

 </Expandable>

 <!--		<VerticalStack

-			Height="{../TemplatedHeight}" Width="{../TemplatedWidth}"

+			Height="{../HeightPolicy}" Width="{../WidthPolicy}"

 			MouseClick="../onMouseClick">

-			<HorizontalStack Spacing="1" Height="-1" Width="{../../TemplatedWidth}">

+			<HorizontalStack Spacing="1" Height="-1" Width="{../../WidthPolicy}">

 				<Image Margin="2" Width="12" Height="12" Path="{../../../Image}" SvgSub="{../../../SvgSub}"/>

-				<Label Text="{../../../Caption}" Width="{../../../TemplatedWidth}"/>

+				<Label Text="{../../../Caption}" Width="{../../../WidthPolicy}"/>

 			</HorizontalStack>

 			<ListBox Name="Content" Visible="false"

-				Height="-1" Width="{../../TemplatedWidth}"/>

+				Height="-1" Width="{../../WidthPolicy}"/>

 		</VerticalStack>-->

 

diff --git a/Templates/TreeView.crow b/Templates/TreeView.crow
index 132c7eb6..165cea1c 100644
--- a/Templates/TreeView.crow
+++ b/Templates/TreeView.crow
@@ -1,5 +1,5 @@
 <Border Background="DimGray" BorderWidth="1" Margin="1" MinimumSize="100;100"
-		Width="{../TemplatedWidth}" Height="{../TemplatedHeight}">
+		Width="{../WidthPolicy}" Height="{../HeightPolicy}">
 	<VerticalStack
 			Height="0" Width="0" Name="List" Margin="0" VerticalAlignment="Top"/>
 
diff --git a/Templates/Window.goml b/Templates/Window.goml
index dd3fec7d..1aa20a84 100755
--- a/Templates/Window.goml
+++ b/Templates/Window.goml
@@ -1,13 +1,13 @@
 <?xml version="1.0"?>
-<Border BorderWidth="1" Foreground="White" CornerRadius="20" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-	<VerticalStack Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
-		<Border Name="TitleBar" BorderWidth="1" Foreground="White" Width="{../../../TemplatedWidth}" Height="-1" 
+<Border BorderWidth="1" Foreground="White" CornerRadius="20" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+	<VerticalStack Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
+		<Border Name="TitleBar" BorderWidth="1" Foreground="White" Width="{../../../WidthPolicy}" Height="-1" 
 				Background="vgradient|0:0,1;0,5;1,0;0,5|1:0,0;0,1;0,3;0,9">
 <!--				Background="0,1;0,5;1,0;0,5"-->
-			<HorizontalStack Name="hs" Margin="1" Spacing="1" Width="{../../../../TemplatedWidth}" Height="-1" >
+			<HorizontalStack Name="hs" Margin="1" Spacing="1" Width="{../../../../WidthPolicy}" Height="-1" >
 				<GraphicObject Width="5"/>
 				<Image Margin="1" Width="12" Height="12" Path="{../../../../../Icon}"/>
-				<Label Foreground="White" Width="{../../../../../TemplatedWidth}" Margin="1" TextAlignment="Center" Text="{../../../../../Title}" />
+				<Label Foreground="White" Width="{../../../../../WidthPolicy}" Margin="1" TextAlignment="Center" Text="{../../../../../Title}" />
 				<Border CornerRadius="6" BorderWidth="1" Foreground="Transparent"  Height="12" Width="12"
 					MouseEnter="{Foreground=White}" MouseLeave="{Foreground=Transparent}">
 					<Image Focusable="true" Name="Image" Margin="0" Width="0" Height="0" Path="#Crow.Images.Icons.exit2.svg"
@@ -16,6 +16,6 @@
 				<GraphicObject Width="5"/>
 			</HorizontalStack>
 		</Border>
-		<Container Name="Content" Height="{../../../../TemplatedHeight}" Width="{../../../../TemplatedWidth}" Background="0,5;0,5;0,5;0,5"/>
+		<Container Name="Content" Height="{../../../../HeightPolicy}" Width="{../../../../WidthPolicy}" Background="0,5;0,5;0,5;0,5"/>
 	</VerticalStack>
 </Border>
\ No newline at end of file
diff --git a/Tests/GOLIBTests.cs b/Tests/GOLIBTests.cs
index c508c0e1..3d6e619f 100644
--- a/Tests/GOLIBTests.cs
+++ b/Tests/GOLIBTests.cs
@@ -37,6 +37,7 @@ namespace test
 		int frameCpt = 0;
 		int idx = 0;
 		string[] testFiles = {
+			"testCheckbox.goml",
 			"testTabView.crow",
 			"testExpandable.goml",
 			"0.crow",
@@ -73,7 +74,6 @@ namespace test
 			"testWindow2.goml",
 
 			"testWindow3.goml",
-			"testCheckbox.goml",
 			"testLabel.goml",
 			"testAll.goml",
 //			"testSpinner.goml",
@@ -239,7 +239,13 @@ namespace test
 		{
 			Console.WriteLine ("button clicked:" + send.ToString());
 		}
-
+		void onAddTabButClick(object sender, MouseButtonEventArgs e){
+			
+			TabView tv = this.FindByName("tabview1") as TabView;
+			if (tv == null)
+				return;
+			tv.AddChild (new TabItem () { Caption = "NewTab" });
+		}
 		[STAThread]
 		static void Main ()
 		{
diff --git a/Tests/Interfaces/TmpExpandable.goml b/Tests/Interfaces/TmpExpandable.goml
index ee0884ff..1cd05fd7 100755
--- a/Tests/Interfaces/TmpExpandable.goml
+++ b/Tests/Interfaces/TmpExpandable.goml
@@ -1,12 +1,12 @@
 <?xml version="1.0"?>
-<!--<VerticalStack Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" MouseClick="../onMouseClick">
-	<Label Text="{../../Caption}" Width="{../../TemplatedWidth}"/>
-	<Container Name="Content" Visible="false" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}"/>
+<!--<VerticalStack Height="{../HeightPolicy}" Width="{../WidthPolicy}" MouseClick="../onMouseClick">
+	<Label Text="{../../Caption}" Width="{../../WidthPolicy}"/>
+	<Container Name="Content" Visible="false" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}"/>
 </VerticalStack>-->
-<Group BorderWidth="1" Foreground="LightGray" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" 
+<Group BorderWidth="1" Foreground="LightGray" Height="{../HeightPolicy}" Width="{../WidthPolicy}" 
 		MouseClick="../onMouseClick">
-	<VerticalStack Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
-		<Label Text="{../../../Caption}" Width="{../../../TemplatedWidth}"/>
-		<Container Name="Content" Visible="false" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}"/>
+	<VerticalStack Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
+		<Label Text="{../../../Caption}" Width="{../../../WidthPolicy}"/>
+		<Container Name="Content" Visible="false" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}"/>
 	</VerticalStack>
 </Group>
\ No newline at end of file
diff --git a/Tests/Interfaces/testAll.goml b/Tests/Interfaces/testAll.goml
index 1959bf4a..6f5be081 100755
--- a/Tests/Interfaces/testAll.goml
+++ b/Tests/Interfaces/testAll.goml
@@ -14,11 +14,11 @@
 	</Groupbox>-->
 	<GroupBox  Background="DarkGreen">		
 <!--		<Template>
-			<Group Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
+			<Group Height="{../HeightPolicy}" Width="{../WidthPolicy}">
 				<Border CornerRadius="5" BorderWidth="1" Margin="0"
-					Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
+					Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
 					<Container Name="Content" Margin="0"
-							Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}"/>
+							Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}"/>
 				</Border>
 				<Label Text="{../../Title}" VerticalAlignment="Top" Left="15"
 					Background="Clear" Margin="1"/>
diff --git a/Tests/Interfaces/testCheckbox.goml b/Tests/Interfaces/testCheckbox.goml
index a8cc4eea..4db4393b 100755
--- a/Tests/Interfaces/testCheckbox.goml
+++ b/Tests/Interfaces/testCheckbox.goml
@@ -1,3 +1,36 @@
 <?xml version="1.0"?>
-<CheckBox Width="-1" Height="-1" Caption="Checkbox" Background="DimGray" IsChecked="true"/>
+<VerticalStack Fit="true" Margin="10" Background="DimGray" >
+<!--	<Label Text="label1" Width="0" Height="0"/>
+	<Label Text="label2" Width="0" Height="0"/>-->
+	<CheckBox Background="Gray"/>
+	<CheckBox Background="Gray"/>
+	<CheckBox Background="Gray"/>
+	<CheckBox Background="Gray"/>
+	<CheckBox Background="Gray"/>
+<!--	<CheckBox Background="Gray"/>-->
+<!--	<HorizontalStack Fit="true" Margin="5" Background="Green">
+		<Label Background="Red"/>
+		<Label Background="Red"/>
+	</HorizontalStack>-->
+	<DummyTemplate Fit="true"/>
+	<DummyTemplate/>
+	<DummyTemplate/>
+	<DummyTemplate/>
+	<DummyTemplate/>
+	<DummyTemplate/>
+	<DummyTemplate Height="-1"/>
+<!--	<Label Margin="5" Background="Red"/>
+	<Label Background="Red"/>
+	<Container Width="100" Height="50" Margin="5" Background="Green">
+		<Label Width="0" Height="0" Background="Red"/>
+	</Container>
+
+	<Container Fit="true" Margin="5" Background="Green">
+		<Label Background="Red" Height="5"/>
+	</Container>
+	<HorizontalStack Margin="5" Background="Red" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+		<Label Background="Green"/>
+		<Label Background="Green"/>
+	</HorizontalStack>-->
+</VerticalStack>
 
diff --git a/Tests/Interfaces/testColorList.crow b/Tests/Interfaces/testColorList.crow
index fc5e023d..76bf8d6e 100755
--- a/Tests/Interfaces/testColorList.crow
+++ b/Tests/Interfaces/testColorList.crow
@@ -5,18 +5,18 @@
 					 HorizontalAlignment="Center" Width="-1" Height="350" Margin="5"
 					 ItemTemplate="#Tests.Interfaces.colorItem.crow">
 			<Template>
-				<Border BorderWidth="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-					<HorizontalStack Margin="1" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}" >
-						<Scroller Name="scroller1" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}" 
+				<Border BorderWidth="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+					<HorizontalStack Margin="1" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}" >
+						<Scroller Name="scroller1" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}" 
 								Margin="2" VerticalScrolling="true" ScrollY="{../scrollbar1.Value}"
 								ValueChanged="../../../_scroller_ValueChanged">
-							<VerticalStack Width="{../../../../TemplatedWidth}" Height="-1" MinimumSize="100;100"
+							<VerticalStack Width="{../../../../WidthPolicy}" Height="-1" MinimumSize="100;100"
 								Name="List" Margin="0" VerticalAlignment="Top"
 								LayoutChanged="../../../../_list_LayoutChanged"/>
 						</Scroller>
 						<ScrollBar Name="scrollbar1" Value="{../scroller1.ScrollY}" 
 							Maximum="{../scroller1.MaximumScroll}" Orientation="Vertical" 
-							Width="14" Height="{../../../TemplatedHeight}" />
+							Width="14" Height="{../../../HeightPolicy}" />
 					</HorizontalStack>
 				</Border>
 			</Template>
diff --git a/Tests/Interfaces/testDirViewer.goml b/Tests/Interfaces/testDirViewer.goml
index 1e3ebd31..22787c3e 100755
--- a/Tests/Interfaces/testDirViewer.goml
+++ b/Tests/Interfaces/testDirViewer.goml
@@ -9,14 +9,14 @@
 			SelectedItemChanged="OnSelectedItemChanged" 
 			ItemTemplate="Interfaces/tmpDirItem.goml" >
 			<Template>
-				<Border BorderWidth="1" MinimumSize="20;20" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-					<HorizontalStack Margin="1" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
-						<Scroller  Name="scroller1" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}" 
+				<Border BorderWidth="1" MinimumSize="20;20" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+					<HorizontalStack Margin="1" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
+						<Scroller  Name="scroller1" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}" 
 						 Margin="2" VerticalScrolling="true" ScrollY="{../scrollbar1.Scroll}">
-							<VerticalStack Width="{../../../../TemplatedWidth}" Height="-1" Name="List" Margin="0" VerticalAlignment="Top"/>
+							<VerticalStack Width="{../../../../WidthPolicy}" Height="-1" Name="List" Margin="0" VerticalAlignment="Top"/>
 						</Scroller>
 						<Scrollbar Name="scrollbar1" Scroll="{../scroller1.ScrollY}" MaximumScroll="{../scroller1.MaximumScroll}"
-							Orientation="Vertical" Width="10" Height="{../../../TemplatedHeight}" />
+							Orientation="Vertical" Width="10" Height="{../../../HeightPolicy}" />
 					</HorizontalStack>
 				</Border>
 			</Template>
diff --git a/Tests/Interfaces/testExpandable.goml b/Tests/Interfaces/testExpandable.goml
index d46f4831..8c2787fb 100755
--- a/Tests/Interfaces/testExpandable.goml
+++ b/Tests/Interfaces/testExpandable.goml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <Expandable Caption="Test expandable" Background="DimGray">
-		<VerticalStack Width="-1" Height="-1">
+		<VerticalStack Margin="5" Background="Green">
 			<CheckBox Name="chk1" Background="Red"/>
 			<CheckBox Name="chk2" IsChecked="true"/>
 			<CheckBox Name="chk3"/>
diff --git a/Tests/Interfaces/testRadioButton2.goml b/Tests/Interfaces/testRadioButton2.goml
index 1c97f16f..d32c46d0 100755
--- a/Tests/Interfaces/testRadioButton2.goml
+++ b/Tests/Interfaces/testRadioButton2.goml
@@ -5,9 +5,9 @@
 	<RadioButton Caption="Radio3"/>
 	<RadioButton Caption="Radio4">
 		<Template>
-			<HorizontalStack Spacing="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
+			<HorizontalStack Spacing="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
 				<Image Margin="2" Width="14" Height="14" Path="{../../Image}" SvgSub="{../../SvgSub}"/>
-				<Label Text="{../../Caption}" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}"/>
+				<Label Text="{../../Caption}" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}"/>
 			</HorizontalStack>
 		</Template>
 	</RadioButton>
diff --git a/Tests/Interfaces/testTabView.crow b/Tests/Interfaces/testTabView.crow
index 953dd8c1..3a081597 100644
--- a/Tests/Interfaces/testTabView.crow
+++ b/Tests/Interfaces/testTabView.crow
@@ -1,34 +1,38 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <HorizontalStack Fit="true">
-	<TabView Margin="20"
-		Width="400" Height="200" Orientation="Horizontal" Spacing="20">
-		<TabItem Name="TabItem1" Caption="tab item 1" Width="0" Height="0" Margin="0">
-			<VerticalStack Fit="true">
-				<CheckBox/>
-				<CheckBox/>
-				<CheckBox/>
-				<CheckBox/>
-				<Label Text="{fps}" HorizontalAlignment="Right" Foreground="Black" Background="Yellow"/>
-			</VerticalStack>
-		</TabItem>
-		<TabItem Name="TabItem2" Caption="tab item 2" Width="0" Height="0" Margin="0" Background="Gray">
-			<VerticalStack Fit="true">
-				<RadioButton/>
-				<RadioButton/>
-				<RadioButton/>
-				<RadioButton/>
-				<Label Text="{fps}" HorizontalAlignment="Left" Background="LimeGreen"/>
-			</VerticalStack>
-		</TabItem>
-		<TabItem Name="TabItem2" Caption="tab item 3" Width="0" Height="0" Margin="0" Background="Gray">
-			<Container Margin="5" CornerRadius="2" Width="0" Height="0">
-				<TextBox Margin="5" Width="0" Height="0" Multiline="true" TextAlignment="TopLeft"/>
-			</Container>
-		</TabItem>
-		<TabItem Name="TabItem2" Caption="tab item 4" Width="0" Height="0" Margin="0" Background="Gray">
-			<TextBox/>
-		</TabItem>
-	</TabView>
+	<VerticalStack Fit="true">
+		<TabView Name="tabview1"
+			Width="400" Height="200" Orientation="Horizontal" Spacing="20">
+			<TabItem Name="TabItem1" Caption="tab item 1" Margin="0">
+				<VerticalStack Fit="true">
+					<CheckBox/>
+					<CheckBox/>
+					<CheckBox/>
+					<CheckBox/>
+<!--					<Label Text="{fps}" HorizontalAlignment="Right" Foreground="Black" Background="Yellow"/>-->
+				</VerticalStack>
+			</TabItem>
+			<TabItem Name="TabItem2" Caption="tab item 2" Width="0" Height="0" Margin="0" Background="Gray">
+				<VerticalStack Fit="true">
+					<RadioButton/>
+					<RadioButton/>
+					<RadioButton/>
+					<RadioButton/>
+<!--					<Label Text="{fps}" HorizontalAlignment="Left" Background="LimeGreen"/>-->
+				</VerticalStack>
+			</TabItem>
+			<TabItem Name="TabItem2" Caption="tab item 3" Width="0" Height="0" Margin="0" Background="Gray">
+				<Container Margin="5" CornerRadius="2" Width="0" Height="0">
+					<TextBox Margin="5" Width="0" Height="0" Multiline="true" TextAlignment="TopLeft"/>
+				</Container>
+			</TabItem>
+			<TabItem Name="TabItem2" Caption="tab item 4" Width="0" Height="0" Margin="0" Background="Gray">
+				<TextBox/>
+			</TabItem>
+		</TabView>
+		<Button Background="vgradient|0:DimGray|1:Black" HorizontalAlignment="Right"
+			Caption="Add new tab" Width="-1" Height="30" MouseClick="onAddTabButClick"/>
+	</VerticalStack>
 	<TabView CacheEnabled="false" Width="200" Height="200" Orientation="Horizontal" Spacing="20" Margin="0">
 		<TabItem
 		 	Name="TabItem1" Caption="tab 1" Width="0" Height="0" Margin="0" Background="Gray">
diff --git a/Tests/Interfaces/testWindow2.goml b/Tests/Interfaces/testWindow2.goml
index 25ea8f30..20d5ba62 100755
--- a/Tests/Interfaces/testWindow2.goml
+++ b/Tests/Interfaces/testWindow2.goml
@@ -2,14 +2,14 @@
 <Window Name="window1" Left="10" Top="10" Title="Test window" Width="200" Height="200" Background="0,5;0,5;0,5;0,8" 
 	Focusable="True"  CornerRadius="20" MinimumSize="100;100" MaximumSize="500;500">
 	<Template>
-		<Border BorderWidth="1" Foreground="White" CornerRadius="20" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-			<VerticalStack Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}">
-				<Border BorderWidth="1" Foreground="White" Width="{../../../TemplatedWidth}" Height="-1" 
+		<Border BorderWidth="1" Foreground="White" CornerRadius="20" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+			<VerticalStack Height="{../../HeightPolicy}" Width="{../../WidthPolicy}">
+				<Border BorderWidth="1" Foreground="White" Width="{../../../WidthPolicy}" Height="-1" 
 						Background="0,1;0,5;1,0;0,5">
-					<HorizontalStack Name="hs" Margin="1" Spacing="1" Width="{../../../../TemplatedWidth}" Height="-1" >
+					<HorizontalStack Name="hs" Margin="1" Spacing="1" Width="{../../../../WidthPolicy}" Height="-1" >
 						<GraphicObject Width="5"/>
 						<Image Margin="1" Width="12" Height="12" Path="{../../../../../Icon}"/>
-						<Label Foreground="White" Width="{../../../../../TemplatedWidth}" Margin="1" TextAlignment="Center" Text="{../../../../../Title}" />
+						<Label Foreground="White" Width="{../../../../../WidthPolicy}" Margin="1" TextAlignment="Center" Text="{../../../../../Title}" />
 						<Border CornerRadius="6" BorderWidth="1" Foreground="Transparent"  Height="12" Width="12"
 							MouseEnter="{Foreground=White}" MouseLeave="{Foreground=Transparent}">
 							<Image Focusable="true" Name="Image" Margin="0" Width="0" Height="0" Path="#Crow.Images.Icons.exit2.svg"
@@ -18,7 +18,7 @@
 						<GraphicObject Width="5"/>
 					</HorizontalStack>
 				</Border>
-				<Container Name="Content" Height="{../../../../TemplatedHeight}" Width="{../../../../TemplatedWidth}" Background="0,5;0,5;0,5;0,5"/>
+				<Container Name="Content" Height="{../../../../HeightPolicy}" Width="{../../../../WidthPolicy}" Background="0,5;0,5;0,5;0,5"/>
 			</VerticalStack>
 		</Border>
 	</Template>
diff --git a/Tests/Interfaces/testWindow3.goml b/Tests/Interfaces/testWindow3.goml
index ffcf4625..1c150471 100755
--- a/Tests/Interfaces/testWindow3.goml
+++ b/Tests/Interfaces/testWindow3.goml
@@ -2,7 +2,7 @@
 <Window Left="10" Top="10" Title="Test window" Width="200" Height="200" Background="0,5;0,5;0,5;0,8" 
 	Focusable="True"  CornerRadius="20" MinimumSize="100;100" MaximumSize="500;500">
 	<Template>
-		<Container Margin="20" Name="Content" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}" Background="0,5;0,5;0,5;0,5"/>
+		<Container Margin="20" Name="Content" Height="{../HeightPolicy}" Width="{../WidthPolicy}" Background="0,5;0,5;0,5;0,5"/>
 	</Template>
 <!--	<Group Background="Green">-->
 		<GraphicObject Height="50" Width="50" Background="Red" Margin="5"/>
diff --git a/Tests/Interfaces/test_Listbox.goml b/Tests/Interfaces/test_Listbox.goml
index 8c9eaa09..71afb828 100755
--- a/Tests/Interfaces/test_Listbox.goml
+++ b/Tests/Interfaces/test_Listbox.goml
@@ -8,16 +8,16 @@
 		<ListBox Data="{TestList}" Background="0,5;0,5;0,5;0,5"
 					 HorizontalAlignment="Center" Width="-1" Height="150" Margin="5">
 			<Template>
-				<Border BorderWidth="1" Height="{../TemplatedHeight}" Width="{../TemplatedWidth}">
-					<HorizontalStack Margin="1" Height="{../../TemplatedHeight}" Width="{../../TemplatedWidth}" >
-						<Scroller Name="scroller1" Height="{../../../TemplatedHeight}" Width="{../../../TemplatedWidth}" 
+				<Border BorderWidth="1" Height="{../HeightPolicy}" Width="{../WidthPolicy}">
+					<HorizontalStack Margin="1" Height="{../../HeightPolicy}" Width="{../../WidthPolicy}" >
+						<Scroller Name="scroller1" Height="{../../../HeightPolicy}" Width="{../../../WidthPolicy}" 
 								Margin="2" VerticalScrolling="true" ScrollY="{../scrollbar1.Value}">
-							<VerticalStack Width="{../../../../TemplatedWidth}" Height="-1" MinimumSize="100;100"
+							<VerticalStack Width="{../../../../WidthPolicy}" Height="-1" MinimumSize="100;100"
 								Name="List" Margin="0" VerticalAlignment="Top" />
 						</Scroller>
 						<ScrollBar Name="scrollbar1" Value="{../scroller1.ScrollY}" 
 							Maximum="{../scroller1.MaximumScroll}" Orientation="Vertical" 
-							Width="10" Height="{../../../TemplatedHeight}" />
+							Width="10" Height="{../../../HeightPolicy}" />
 					</HorizontalStack>
 				</Border>
 			</Template>
diff --git a/src/GraphicObjects/Border.cs b/src/GraphicObjects/Border.cs
index 7011690e..be08a7d8 100644
--- a/src/GraphicObjects/Border.cs
+++ b/src/GraphicObjects/Border.cs
@@ -40,9 +40,10 @@ namespace Crow
 			}
 		}
 
-		protected override Size measureRawSize ()
+		protected override int measureRawSize (LayoutingType lt)
 		{
-			return child == null ? Bounds.Size : child.Slot.Size + 2 * (Margin + BorderWidth);
+			int tmp = base.measureRawSize (lt);
+			return tmp < 0 ? tmp : tmp + 2 * BorderWidth;
 		}
 		protected override void onDraw (Cairo.Context gr)
 		{
diff --git a/src/GraphicObjects/DummyTemplate.cs b/src/GraphicObjects/DummyTemplate.cs
new file mode 100644
index 00000000..68597d18
--- /dev/null
+++ b/src/GraphicObjects/DummyTemplate.cs
@@ -0,0 +1,33 @@
+//
+//  DummyTemplate.cs
+//
+//  Author:
+//       Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
+//
+//  Copyright (c) 2016 jp
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+using System;
+
+namespace Crow
+{
+	[DefaultTemplate("#Crow.Templates.Dummy.goml")]
+	public class DummyTemplate : TemplatedControl
+	{
+		public DummyTemplate () : base()
+		{
+		}
+	}
+}
+
diff --git a/src/GraphicObjects/GenericStack.cs b/src/GraphicObjects/GenericStack.cs
index bbbc52ec..2a1da6c3 100644
--- a/src/GraphicObjects/GenericStack.cs
+++ b/src/GraphicObjects/GenericStack.cs
@@ -52,34 +52,43 @@ namespace Crow
 			else
 				layoutType &= (~LayoutingType.Y);			
 		}
-		protected override Size measureRawSize ()
+		protected override int measureRawSize (LayoutingType lt)
 		{
-			Size tmp = new Size ();
-
-			if (Orientation == Orientation.Horizontal) {
-				foreach (GraphicObject c in Children) {
-					if (!c.Visible)
-						continue;					
-					tmp.Width += c.Slot.Width + Spacing;
-					tmp.Height = Math.Max (tmp.Height, Math.Max(c.Slot.Bottom, c.Slot.Height));
-				}
-				if (tmp.Width > 0)
-					tmp.Width -= Spacing;
-			} else {
-				foreach (GraphicObject c in Children) {
-					if (!c.Visible)
-						continue;					
-					tmp.Width = Math.Max (tmp.Width, Math.Max(c.Slot.Right, c.Slot.Width));
-					tmp.Height += c.Slot.Height + Spacing;
+			int tmp = 0;
+			switch (lt) {
+			case LayoutingType.Width:
+				if (Orientation == Orientation.Horizontal) {
+					if (Children.Count > 0) {
+						foreach (GraphicObject c in Children) {
+							if (!c.Visible)
+								continue;
+							if (c.RegisteredLayoutings.HasFlag (LayoutingType.Width))
+								return -1;
+							tmp += c.Slot.Width + Spacing;
+						}
+						tmp -= Spacing;
+					}
+					break;
+				} 
+				return base.measureRawSize (lt);				
+			case LayoutingType.Height:
+				if (Orientation == Orientation.Vertical) {
+					if (Children.Count > 0) {
+						foreach (GraphicObject c in Children) {
+							if (!c.Visible)
+								continue;
+							if (c.RegisteredLayoutings.HasFlag (LayoutingType.Height))
+								return -1;
+							tmp += c.Slot.Height + Spacing;
+						}
+						tmp -= Spacing;
+					}
+					break;
 				}
-				if (tmp.Height > 0)
-					tmp.Height -= Spacing;
+				return base.measureRawSize (lt);
 			}
 
-			tmp.Width += 2 * Margin;
-			tmp.Height += 2 * Margin;
-
-			return tmp;
+			return tmp + 2 * Margin;
 		}
 		public virtual void ComputeChildrenPositions()
 		{
diff --git a/src/GraphicObjects/GraphicObject.cs b/src/GraphicObjects/GraphicObject.cs
index f10f2244..9f20fca9 100644
--- a/src/GraphicObjects/GraphicObject.cs
+++ b/src/GraphicObjects/GraphicObject.cs
@@ -262,12 +262,12 @@ namespace Crow
 
 		[XmlAttributeAttribute()][DefaultValue(false)]
 		public virtual bool Fit {
-			get { return Bounds.Width < 0 && Bounds.Height < 0 ? true : false; }
+			get { return Width < 0 && Height < 0 ? true : false; }
 			set {
 				if (value == Fit)
 					return;
 
-				Bounds.Width = Bounds.Height = -1;
+				Width = Height = -1;
 			}
 		}
 		[XmlAttributeAttribute()][DefaultValue(false)]
@@ -626,8 +626,8 @@ namespace Crow
 			set { layoutingTries = value; }
 		}
 		/// <summary> return size of content + margins </summary>
-		protected virtual Size measureRawSize () {
-			return Bounds.Size;
+		protected virtual int measureRawSize (LayoutingType lt) {
+			return lt == LayoutingType.Width ? Bounds.Size.Width : Bounds.Size.Height;
 		}
 		/// <summary> By default in groups, LayoutingType.ArrangeChildren is reset </summary>
 		public virtual void ChildrenLayoutingConstraints(ref LayoutingType layoutType){
@@ -704,7 +704,8 @@ namespace Crow
 			case LayoutingType.X:
 				if (Bounds.X == 0) {
 
-					if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Width))
+					if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Width) ||
+						RegisteredLayoutings.HasFlag (LayoutingType.Width))
 						return false;
 					
 					switch (HorizontalAlignment) {
@@ -733,7 +734,8 @@ namespace Crow
 			case LayoutingType.Y:
 				if (Bounds.Y == 0) {
 
-					if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Height))
+					if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Height) || 
+						RegisteredLayoutings.HasFlag (LayoutingType.Height))
 						return false;
 					
 					switch (VerticalAlignment) {
@@ -762,9 +764,12 @@ namespace Crow
 			case LayoutingType.Width:
 				if (Width > 0)
 					Slot.Width = Width;
-				else if (Width < 0)
-					Slot.Width = measureRawSize ().Width;
-				else if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Width))
+				else if (Width < 0) {
+					int tmp = measureRawSize (LayoutingType.Width);
+					if (tmp < 0)
+						return false;
+					Slot.Width = tmp;
+				}else if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Width))
 					return false;
 				else
 					Slot.Width = Parent.ClientRectangle.Width;
@@ -787,9 +792,12 @@ namespace Crow
 			case LayoutingType.Height:
 				if (Height > 0)
 					Slot.Height = Height;
-				else if (Height < 0)
-					Slot.Height = measureRawSize ().Height;
-				else if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Height))
+				else if (Height < 0){
+					int tmp = measureRawSize (LayoutingType.Height);
+					if (tmp < 0)
+						return false;
+					Slot.Height = tmp;
+				}else if (Parent.RegisteredLayoutings.HasFlag (LayoutingType.Height))
 					return false;
 				else
 					Slot.Height = Parent.ClientRectangle.Height;
diff --git a/src/GraphicObjects/Group.cs b/src/GraphicObjects/Group.cs
index ba65ba0c..2a960029 100644
--- a/src/GraphicObjects/Group.cs
+++ b/src/GraphicObjects/Group.cs
@@ -125,9 +125,21 @@ namespace Crow
 			}
 			return false;
 		}
-		protected override Size measureRawSize ()
+		protected override int measureRawSize (LayoutingType lt)
 		{
-			return new Size(maxChildrenWidth + 2 * Margin, maxChildrenHeight + 2 * Margin);
+			if (lt == LayoutingType.Width) {
+				if (largestChild == null)
+					searchLargestChild ();
+				if (largestChild == null)//if still null, not possible to determine a width
+					return -1;
+				return maxChildrenWidth + 2 * Margin;
+			}else{
+				if (tallestChild == null)
+					searchTallestChild ();
+				if (tallestChild == null)
+					return -1;
+				return maxChildrenHeight + 2 * Margin;
+			}
 		}
 			
 		public override void OnLayoutChanges (LayoutingType layoutType)
@@ -162,8 +174,9 @@ namespace Crow
 					if (this.Bounds.Width < 0)
 						this.RegisterForLayouting (LayoutingType.Width);
 				} else if (g == largestChild) {
-					
-					searchLargestChild ();
+
+					largestChild = null;
+					maxChildrenWidth = 0;
 
 					if (this.Bounds.Width < 0)
 						this.RegisterForLayouting (LayoutingType.Width);
@@ -177,7 +190,8 @@ namespace Crow
 						this.RegisterForLayouting (LayoutingType.Height);
 				} else if (g == tallestChild) {
 
-					searchTallestChild ();
+					tallestChild = null;
+					maxChildrenHeight = 0;
 
 					if (this.Bounds.Height < 0)
 						this.RegisterForLayouting (LayoutingType.Height);
@@ -186,6 +200,7 @@ namespace Crow
 			}
 		}
 
+		//TODO: x,y position should be taken in account for computation of width and height
 		void resetChildrenMaxSize(){
 			largestChild = null;
 			tallestChild = null;
@@ -198,6 +213,8 @@ namespace Crow
 			for (int i = 0; i < Children.Count; i++) {
 				if (!Children [i].Visible)
 					continue;
+				if (children [i].RegisteredLayoutings.HasFlag (LayoutingType.Width))
+					continue;
 				if (Children [i].Slot.Width > maxChildrenWidth) {
 					maxChildrenWidth = Children [i].Slot.Width;
 					largestChild = Children [i];
@@ -210,6 +227,8 @@ namespace Crow
 			for (int i = 0; i < Children.Count; i++) {
 				if (!Children [i].Visible)
 					continue;
+				if (children [i].RegisteredLayoutings.HasFlag (LayoutingType.Height))
+					continue;
 				if (Children [i].Slot.Height > maxChildrenHeight) {
 					maxChildrenHeight = Children [i].Slot.Height;
 					tallestChild = Children [i];
diff --git a/src/GraphicObjects/Image.cs b/src/GraphicObjects/Image.cs
index bd6a57c9..6755653e 100644
--- a/src/GraphicObjects/Image.cs
+++ b/src/GraphicObjects/Image.cs
@@ -94,12 +94,15 @@ namespace Crow
 		#endregion
 
 		#region GraphicObject overrides
-		protected override Size measureRawSize ()
+		protected override int measureRawSize (LayoutingType lt)
 		{
 			if (_pic == null)
 				_pic = "#Crow.Images.Icons.IconAlerte.svg";
-
-			return _pic.Dimensions + Margin * 2;
+			//TODO:take scalling in account
+			if (lt == LayoutingType.Width)
+				return _pic.Dimensions.Width + 2 * Margin;
+			else
+				return _pic.Dimensions.Height + 2 * Margin;			
 		}
 		protected override void onDraw (Context gr)
 		{
diff --git a/src/GraphicObjects/Label.cs b/src/GraphicObjects/Label.cs
index 4c7e7006..dd5b89e2 100644
--- a/src/GraphicObjects/Label.cs
+++ b/src/GraphicObjects/Label.cs
@@ -319,13 +319,11 @@ namespace Crow
 			set { base.Height = value; }
 		}
 
-		protected override Size measureRawSize()
-        {
-			Size size;
-
+		protected override int measureRawSize(LayoutingType lt)
+        {			
 			if (lines == null)
 				lines = getLines;
-				
+								
 			using (ImageSurface img = new ImageSurface (Format.Argb32, 10, 10)) {
 				using (Context gr = new Context (img)) {
 					//Cairo.FontFace cf = gr.GetContextFontFace ();
@@ -333,8 +331,19 @@ namespace Crow
 					gr.SelectFontFace (Font.Name, Font.Slant, Font.Wheight);
 					gr.SetFontSize (Font.Size);
 
+
+					fe = gr.FontExtents;
 					te = new TextExtents();
 
+					if (lt == LayoutingType.Height){
+						int lc = lines.Count;
+						//ensure minimal height = text line height
+						if (lc == 0)
+							lc = 1; 
+						
+						return (int)(fe.Height * lc) + Margin * 2;
+					}
+
 					foreach (string s in lines) {
 						string l = s.Replace("\t", new String (' ', Interface.TabSize));
 
@@ -346,16 +355,9 @@ namespace Crow
 						if (tmp.XAdvance > te.XAdvance)
 							te = tmp;
 					}
-					fe = gr.FontExtents;
-					int lc = lines.Count;
-					//ensure minimal height = text line height
-					if (lc == 0)
-						lc = 1; 
-					size = new Size ((int)Math.Ceiling (te.XAdvance) + Margin * 2, (int)(fe.Height * lc) + Margin*2);
+					return (int)Math.Ceiling (te.XAdvance) + Margin * 2;
 				}
 			}
-
-            return size;;
         }
 		protected override void onDraw (Context gr)
 		{
@@ -368,7 +370,8 @@ namespace Crow
 			//gr.FontOptions.Antialias = Antialias.Subpixel;
 			//gr.FontOptions.HintMetrics = HintMetrics.On;
 
-			rText = new Rectangle(measureRawSize());
+			rText = new Rectangle(
+				measureRawSize(LayoutingType.Width), measureRawSize(LayoutingType.Height));
 			rText.Width -= 2 * Margin;
 			rText.Height -= 2 * Margin;
 
diff --git a/src/GraphicObjects/PrivateContainer.cs b/src/GraphicObjects/PrivateContainer.cs
index f3c9f43d..640e8d0b 100644
--- a/src/GraphicObjects/PrivateContainer.cs
+++ b/src/GraphicObjects/PrivateContainer.cs
@@ -91,9 +91,16 @@ namespace Crow
 			return child == goToFind ? true : 
 				child == null ? false : child.Contains(goToFind);
 		}
-		protected override Size measureRawSize ()
-		{			
-			return child == null ? Bounds.Size : child.Slot.Size + 2 * Margin;
+		protected override int measureRawSize (LayoutingType lt)
+		{
+			if (child == null)
+				return base.measureRawSize (lt);
+			if (lt == LayoutingType.Width)
+				return child.RegisteredLayoutings.HasFlag(LayoutingType.Width) ?
+					-1 : child.Slot.Size.Width + 2 * Margin;
+			else
+				return child.RegisteredLayoutings.HasFlag(LayoutingType.Height) ?
+					-1 : child.Slot.Size.Height + 2 * Margin;			
 		}
 		public override bool UpdateLayout (LayoutingType layoutType)
 		{
diff --git a/src/GraphicObjects/TemplatedControl.cs b/src/GraphicObjects/TemplatedControl.cs
index dd7c742d..75176c34 100644
--- a/src/GraphicObjects/TemplatedControl.cs
+++ b/src/GraphicObjects/TemplatedControl.cs
@@ -71,38 +71,47 @@ namespace Crow
 
 		string _template;
 
-		[XmlAttributeAttribute][DefaultValue("#Crow.Templates.Template.goml")]
+		[XmlAttributeAttribute][DefaultValue(null)]
 		public string Template {
 			get { return _template; }
-			set { _template = value; }
-		}
+			set {
+				if (Template == value)
+					return;
+				_template = value;
 
-		#region GraphicObject overrides
-		[XmlAttributeAttribute()][DefaultValue(-1)]
-		public override int Width {
-			get { return base.Width; }
-			set { 
-				base.Width = value; 
-				//PropertyLess binding for sizing policy in template
-				if (base.Width < 1) //send size policy to template elements
-					NotifyValueChanged ("TemplatedWidth", base.Width);
-				else //stretched in control if size is fixed
-					NotifyValueChanged ("TemplatedWidth", 0);
+				if (string.IsNullOrEmpty(_template))
+					loadTemplate ();
+				else
+					loadTemplate (Interface.Load (_template, this));
 			}
 		}
-		[XmlAttributeAttribute()][DefaultValue(-1)]
-		public override int Height {
-			get { return base.Height; }
-			set { 
-				base.Height = value; 
 
-				//PropertyLess binding for sizing policy in template
-				if (base.Height < 1) //send size policy to template elements
-					NotifyValueChanged ("TemplatedHeight", base.Height);
-				else //stretched in control if size is fixed
-					NotifyValueChanged ("TemplatedHeight", 0);
-			}
-		}
+		#region GraphicObject overrides
+//		[XmlAttributeAttribute()][DefaultValue(-1)]
+//		public override int Width {
+//			get { return base.Width; }
+//			set { 
+//				base.Width = value; 
+//				//PropertyLess binding for sizing policy in template
+//				if (base.Width < 1) //send size policy to template elements
+//					NotifyValueChanged ("TemplatedWidth", base.Width);
+//				else //stretched in control if size is fixed
+//					NotifyValueChanged ("TemplatedWidth", 0);
+//			}
+//		}
+//		[XmlAttributeAttribute()][DefaultValue(-1)]
+//		public override int Height {
+//			get { return base.Height; }
+//			set { 
+//				base.Height = value; 
+//
+//				//PropertyLess binding for sizing policy in template
+//				if (base.Height < 1) //send size policy to template elements
+//					NotifyValueChanged ("TemplatedHeight", base.Height);
+//				else //stretched in control if size is fixed
+//					NotifyValueChanged ("TemplatedHeight", 0);
+//			}
+//		}
 		public override GraphicObject FindByName (string nameToFind)
 		{
 			//prevent name searching in template
diff --git a/src/GraphicObjects/TextRun.cs b/src/GraphicObjects/TextRun.cs
index a426bdee..ef19cb04 100644
--- a/src/GraphicObjects/TextRun.cs
+++ b/src/GraphicObjects/TextRun.cs
@@ -144,13 +144,11 @@ namespace Crow
 			set { base.Margin = value; }
 		}
 
-		protected override Size measureRawSize()
-        {
-			Size size;
-
+		protected override int measureRawSize(LayoutingType lt)
+		{			
 			if (lines == null)
 				lines = getLines;
-				
+
 			using (ImageSurface img = new ImageSurface (Format.Argb32, 10, 10)) {
 				using (Context gr = new Context (img)) {
 					//Cairo.FontFace cf = gr.GetContextFontFace ();
@@ -158,30 +156,34 @@ namespace Crow
 					gr.SelectFontFace (Font.Name, Font.Slant, Font.Wheight);
 					gr.SetFontSize (Font.Size);
 
+
+					fe = gr.FontExtents;
 					te = new TextExtents();
 
+					if (lt == LayoutingType.Height){
+						int lc = lines.Count;
+						//ensure minimal height = text line height
+						if (lc == 0)
+							lc = 1; 
+
+						return (int)(fe.Height * lc) + Margin * 2;
+					}
+
 					foreach (string s in lines) {
 						string l = s.Replace("\t", new String (' ', Interface.TabSize));
 
-#if _WIN32 || _WIN64
+						#if _WIN32 || _WIN64
 						TextExtents tmp = gr.TextExtents(str.ToUtf8());
-#elif __linux__
+						#elif __linux__
 						TextExtents tmp = gr.TextExtents (l);
-#endif
+						#endif
 						if (tmp.XAdvance > te.XAdvance)
 							te = tmp;
 					}
-					fe = gr.FontExtents;
-					int lc = lines.Count;
-					//ensure minimal height = text line height
-					if (lc == 0)
-						lc = 1; 
-					size = new Size ((int)Math.Ceiling (te.XAdvance) + Margin * 2, (int)(fe.Height * lc) + Margin*2);
+					return (int)Math.Ceiling (te.XAdvance) + Margin * 2;
 				}
 			}
-
-            return size;;
-        }
+		}
 		protected override void onDraw (Context gr)
 		{
 			base.onDraw (gr);
@@ -193,7 +195,8 @@ namespace Crow
 			//gr.FontOptions.Antialias = Antialias.Subpixel;
 			//gr.FontOptions.HintMetrics = HintMetrics.On;
 
-			rText = new Rectangle(measureRawSize());
+			rText = new Rectangle(
+				measureRawSize(LayoutingType.Width), measureRawSize(LayoutingType.Height));
 			rText.Width -= 2 * Margin;
 			rText.Height -= 2 * Margin;