1 files changed, 20 insertions, 7 deletions
diff --git a/indra/llui/lllayoutstack.h b/indra/llui/lllayoutstack.h
index e19ef403ef..4ac8ef0ee9 100644
--- a/indra/llui/lllayoutstack.h
+++ b/indra/llui/lllayoutstack.h
@@ -37,27 +37,35 @@ class LLLayoutPanel;
 class LLLayoutStack : public LLView, public LLInstanceTracker<LLLayoutStack>
 {
 public:
+	typedef enum e_layout_orientation
+	{
+		HORIZONTAL,
+		VERTICAL
+	} ELayoutOrientation;
+
+	struct OrientationNames
+	:	public LLInitParam::TypeValuesHelper<ELayoutOrientation, OrientationNames>
+	{
+		static void declareValues();
+	};
+
 	struct LayoutStackRegistry : public LLChildRegistry<LayoutStackRegistry>
 	{};
 
 	struct Params : public LLInitParam::Block<Params, LLView::Params>
 	{
-		Mandatory<std::string>	orientation;
+		Mandatory<ELayoutOrientation, OrientationNames>	orientation;
 		Optional<S32>			border_size;
 		Optional<bool>			animate,
 								clip;
+		Optional<F32>			open_time_constant,
+								close_time_constant;
 
 		Params();
 	};
 
 	typedef LayoutStackRegistry child_registry_t;
 
-	typedef enum e_layout_orientation
-	{
-		HORIZONTAL,
-		VERTICAL
-	} ELayoutOrientation;
-
 	virtual ~LLLayoutStack();
 
 	/*virtual*/ void draw();
@@ -137,6 +145,8 @@ private:
 	bool mAnimatedThisFrame;
 	bool mAnimate;
 	bool mClip;
+	F32 mOpenTimeConstant;
+	F32 mCloseTimeConstant;
 }; // end class LLLayoutStack
 
 class LLLayoutPanel : public LLPanel
@@ -167,6 +177,9 @@ public:
 	~LLLayoutPanel();
 
 	void initFromParams(const Params& p);
+	void setMinDim(S32 value) { mMinDim = value; }
+	void setMaxDim(S32 value) { mMaxDim = value; }
+
 protected:
 	LLLayoutPanel(const Params& p)	;