merge with viewer-release

47 files changed, 652 insertions, 424 deletions

diff --git a/indra/llui/CMakeLists.txt b/indra/llui/CMakeLists.txt
index 34a08603fa..c4270a62bd 100755
--- a/indra/llui/CMakeLists.txt
+++ b/indra/llui/CMakeLists.txt
@@ -61,7 +61,6 @@ set(llui_SOURCE_FILES
     llfolderview.cpp
     llfolderviewitem.cpp
     llfolderviewmodel.cpp
-    llfunctorregistry.cpp
     lliconctrl.cpp
     llkeywords.cpp
     lllayoutstack.cpp
diff --git a/indra/llui/llaccordionctrltab.cpp b/indra/llui/llaccordionctrltab.cpp
index 43462bd244..53720a6044 100755
--- a/indra/llui/llaccordionctrltab.cpp
+++ b/indra/llui/llaccordionctrltab.cpp
@@ -444,9 +444,9 @@ void LLAccordionCtrlTab::changeOpenClose(bool is_open)
 	}
 }
 
-void LLAccordionCtrlTab::handleVisibilityChange(BOOL new_visibility)
+void LLAccordionCtrlTab::onVisibilityChange(BOOL new_visibility)
 {
-	LLUICtrl::handleVisibilityChange(new_visibility);
+	LLUICtrl::onVisibilityChange(new_visibility);
 
 	notifyParent(LLSD().with("child_visibility_change", new_visibility));
 }
diff --git a/indra/llui/llaccordionctrltab.h b/indra/llui/llaccordionctrltab.h
index dddaa581e6..7a78700e0f 100755
--- a/indra/llui/llaccordionctrltab.h
+++ b/indra/llui/llaccordionctrltab.h
@@ -158,7 +158,7 @@ public:
 	/**
 	 * Raises notifyParent event with "child_visibility_change" = new_visibility
 	 */
-	void handleVisibilityChange(BOOL new_visibility);
+	void onVisibilityChange(BOOL new_visibility);
 
 	// Changes expand/collapse state and triggers expand/collapse callbacks
 	virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
diff --git a/indra/llui/llbutton.cpp b/indra/llui/llbutton.cpp
index a8149a9a1d..ce4d137478 100755
--- a/indra/llui/llbutton.cpp
+++ b/indra/llui/llbutton.cpp
@@ -779,11 +779,11 @@ void LLButton::draw()
 	{
 		mCurGlowStrength = lerp(mCurGlowStrength,
 					mFlashing ? (mFlashingTimer->isCurrentlyHighlighted() || !mFlashingTimer->isFlashingInProgress() || mNeedsHighlight? 1.0 : 0.0) : mHoverGlowStrength,
-					LLCriticalDamp::getInterpolant(0.05f));
+					LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 	else
 	{
-		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLCriticalDamp::getInterpolant(0.05f));
+		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 
 	// Draw button image, if available.
diff --git a/indra/llui/llcontainerview.cpp b/indra/llui/llcontainerview.cpp
index e08ccb0b78..06f8e72c9c 100755
--- a/indra/llui/llcontainerview.cpp
+++ b/indra/llui/llcontainerview.cpp
@@ -49,7 +49,6 @@ LLContainerView::LLContainerView(const LLContainerView::Params& p)
 	mLabel(p.label),
 	mDisplayChildren(p.display_children)
 {
-	mCollapsible = TRUE;
 	mScrollContainer = NULL;
 }
 
@@ -75,6 +74,11 @@ bool LLContainerView::addChild(LLView* child, S32 tab_group)
 	return res;
 }
 
+BOOL LLContainerView::handleDoubleClick(S32 x, S32 y, MASK mask)
+{
+	return handleMouseDown(x, y, mask);
+}
+
 BOOL LLContainerView::handleMouseDown(S32 x, S32 y, MASK mask)
 {
 	BOOL handled = FALSE;
@@ -84,7 +88,7 @@ BOOL LLContainerView::handleMouseDown(S32 x, S32 y, MASK mask)
 	}
 	if (!handled)
 	{
-		if( mCollapsible && mShowLabel && (y >= getRect().getHeight() - 10) )
+		if( mShowLabel && (y >= getRect().getHeight() - 10) )
 		{
 			setDisplayChildren(!mDisplayChildren);
 			reshape(getRect().getWidth(), getRect().getHeight(), FALSE);
diff --git a/indra/llui/llcontainerview.h b/indra/llui/llcontainerview.h
index e81600fd6c..ac92b19977 100755
--- a/indra/llui/llcontainerview.h
+++ b/indra/llui/llcontainerview.h
@@ -66,6 +66,7 @@ public:
 	/*virtual*/ BOOL postBuild();
 	/*virtual*/ bool addChild(LLView* view, S32 tab_group = 0);
 	
+	/*virtual*/ BOOL handleDoubleClick(S32 x, S32 y, MASK mask);
 	/*virtual*/ BOOL handleMouseDown(S32 x, S32 y, MASK mask);
 	/*virtual*/ BOOL handleMouseUp(S32 x, S32 y, MASK mask);
 
@@ -87,8 +88,5 @@ public:
 protected:
 	BOOL mDisplayChildren;
 	std::string mLabel;
-public:
-	BOOL mCollapsible;
-
 };
 #endif // LL_CONTAINERVIEW_
diff --git a/indra/llui/llfloater.cpp b/indra/llui/llfloater.cpp
index 09e27a264a..d06e2c9334 100755
--- a/indra/llui/llfloater.cpp
+++ b/indra/llui/llfloater.cpp
@@ -598,7 +598,7 @@ LLControlGroup*	LLFloater::getControlGroup()
 
 void LLFloater::setVisible( BOOL visible )
 {
-	LLPanel::setVisible(visible); // calls handleVisibilityChange()
+	LLPanel::setVisible(visible); // calls onVisibilityChange()
 	if( visible && mFirstLook )
 	{
 		mFirstLook = FALSE;
@@ -641,21 +641,21 @@ void LLFloater::setIsSingleInstance(BOOL is_single_instance)
 
 
 // virtual
-void LLFloater::handleVisibilityChange ( BOOL new_visibility )
+void LLFloater::onVisibilityChange ( BOOL new_visibility )
 {
 	if (new_visibility)
 	{
 		if (getHost())
 			getHost()->setFloaterFlashing(this, FALSE);
 	}
-	LLPanel::handleVisibilityChange ( new_visibility );
+	LLPanel::onVisibilityChange ( new_visibility );
 }
 
 void LLFloater::openFloater(const LLSD& key)
 {
 	llinfos << "Opening floater " << getName() << llendl;
 	mKey = key; // in case we need to open ourselves again
-
+	
 	if (getSoundFlags() != SILENT 
 	// don't play open sound for hosted (tabbed) windows
 		&& !getHost() 
@@ -803,7 +803,7 @@ void LLFloater::closeFloater(bool app_quitting)
 		}
 		else
 		{
-			setVisible(FALSE); // hide before destroying (so handleVisibilityChange() gets called)
+			setVisible(FALSE); // hide before destroying (so onVisibilityChange() gets called)
 			if (!mReuseInstance)
 			{
 				destroy();
@@ -1157,11 +1157,11 @@ void LLFloater::handleReshape(const LLRect& new_rect, bool by_user)
 			{
 				setDocked( false, false);
 			}
-			storeRectControl();
-			mPositioning = LLFloaterEnums::POSITIONING_RELATIVE;
-			LLRect screen_rect = calcScreenRect();
-			mPosition = LLCoordGL(screen_rect.getCenterX(), screen_rect.getCenterY()).convert();
-		}
+		storeRectControl();
+		mPositioning = LLFloaterEnums::POSITIONING_RELATIVE;
+		LLRect screen_rect = calcScreenRect();
+		mPosition = LLCoordGL(screen_rect.getCenterX(), screen_rect.getCenterY()).convert();
+	}
 
 		// gather all snapped dependents
 		for(handle_set_iter_t dependent_it = mDependents.begin();
@@ -3149,7 +3149,7 @@ bool LLFloater::initFloaterXML(LLXMLNodePtr node, LLView *parent, const std::str
 			parser.readXUI(node, output_params, LLUICtrlFactory::getInstance()->getCurFileName());
 			setupParamsForExport(output_params, parent);
 			output_node->setName(node->getName()->mString);
-			parser.writeXUI(output_node, output_params, &default_params);
+			parser.writeXUI(output_node, output_params, LLInitParam::default_parse_rules(), &default_params);
 			return TRUE;
 		}
 
@@ -3179,9 +3179,8 @@ bool LLFloater::initFloaterXML(LLXMLNodePtr node, LLView *parent, const std::str
 	{
 		Params output_params(params);
 		setupParamsForExport(output_params, parent);
-        Params default_params(LLUICtrlFactory::getDefaultParams<LLFloater>());
 		output_node->setName(node->getName()->mString);
-		parser.writeXUI(output_node, output_params, &default_params);
+		parser.writeXUI(output_node, output_params, LLInitParam::default_parse_rules(), &default_params);
 	}
 
 	// Default floater position to top-left corner of screen
diff --git a/indra/llui/llfloater.h b/indra/llui/llfloater.h
index 4dba1e645f..ad0b800f1c 100755
--- a/indra/llui/llfloater.h
+++ b/indra/llui/llfloater.h
@@ -302,7 +302,7 @@ public:
 	virtual BOOL	canClose() { return TRUE; }
 
 	/*virtual*/ void setVisible(BOOL visible); // do not override
-	/*virtual*/ void handleVisibilityChange ( BOOL new_visibility ); // do not override
+	/*virtual*/ void onVisibilityChange ( BOOL new_visibility ); // do not override
 	
 	void			setFrontmost(BOOL take_focus = TRUE);
     virtual void	setVisibleAndFrontmost(BOOL take_focus=TRUE, const LLSD& key = LLSD());    
diff --git a/indra/llui/llfloaterreg.h b/indra/llui/llfloaterreg.h
index a1e1f8a988..e3b17dcb4f 100755
--- a/indra/llui/llfloaterreg.h
+++ b/indra/llui/llfloaterreg.h
@@ -30,6 +30,7 @@
 #include "llrect.h"
 #include "llsd.h"
 
+#include <list>
 #include <boost/function.hpp>
 
 //*******************************************************
diff --git a/indra/llui/llfolderviewitem.cpp b/indra/llui/llfolderviewitem.cpp
index fdb4108afb..c7910cb883 100755..100644
--- a/indra/llui/llfolderviewitem.cpp
+++ b/indra/llui/llfolderviewitem.cpp
@@ -489,7 +489,7 @@ BOOL LLFolderViewItem::handleMouseDown( S32 x, S32 y, MASK mask )
 	// No handler needed for focus lost since this class has no
 	// state that depends on it.
 	gFocusMgr.setMouseCapture( this );
-    
+
 	if (!mIsSelected)
 	{
 		if(mask & MASK_CONTROL)
@@ -706,7 +706,7 @@ void LLFolderViewItem::drawHighlight(const BOOL showContent, const BOOL hasKeybo
                 bg_color.mV[VALPHA] = clamp_rescale(fade_time, 0.f, 0.4f, 0.f, bg_color.mV[VALPHA]);
             }
         	gl_rect_2d(FOCUS_LEFT,
-					   focus_top,
+					   focus_top, 
 					   getRect().getWidth() - 2,
 					   focus_bottom,
 					   bg_color, hasKeyboardFocus);
@@ -860,7 +860,7 @@ void LLFolderViewItem::draw()
 						  LLFontGL::LEFT, LLFontGL::BOTTOM, LLFontGL::NORMAL, LLFontGL::NO_SHADOW,
 						  S32_MAX, S32_MAX, &right_x, FALSE );
 	}
-    
+
 	//--------------------------------------------------------------------------------//
 	// Highlight string match
 	//
@@ -882,7 +882,7 @@ const LLFolderViewModelInterface* LLFolderViewItem::getFolderViewModel( void ) c
 {
 	return getRoot()->getFolderViewModel();
 }
-
+		
 LLFolderViewModelInterface* LLFolderViewItem::getFolderViewModel( void )
 {
 	return getRoot()->getFolderViewModel();
@@ -919,11 +919,11 @@ void LLFolderViewFolder::updateLabelRotation()
 	}
 	else if (isOpen())
 	{
-		mControlLabelRotation = lerp(mControlLabelRotation, -90.f, LLCriticalDamp::getInterpolant(0.04f));
+		mControlLabelRotation = lerp(mControlLabelRotation, -90.f, LLSmoothInterpolation::getInterpolant(0.04f));
 	}
 	else
 	{
-		mControlLabelRotation = lerp(mControlLabelRotation, 0.f, LLCriticalDamp::getInterpolant(0.025f));
+		mControlLabelRotation = lerp(mControlLabelRotation, 0.f, LLSmoothInterpolation::getInterpolant(0.025f));
 	}
 }
 
@@ -1056,7 +1056,7 @@ S32 LLFolderViewFolder::arrange( S32* width, S32* height )
 	// animate current height towards target height
 	if (llabs(mCurHeight - mTargetHeight) > 1.f)
 	{
-		mCurHeight = lerp(mCurHeight, mTargetHeight, LLCriticalDamp::getInterpolant(isOpen() ? FOLDER_OPEN_TIME_CONSTANT : FOLDER_CLOSE_TIME_CONSTANT));
+		mCurHeight = lerp(mCurHeight, mTargetHeight, LLSmoothInterpolation::getInterpolant(isOpen() ? FOLDER_OPEN_TIME_CONSTANT : FOLDER_CLOSE_TIME_CONSTANT));
 
 		requestArrange();
 
@@ -1577,7 +1577,7 @@ void LLFolderViewFolder::addItem(LLFolderViewItem* item)
 	item->setVisible(FALSE);
 	
 	addChild(item);
-
+	
 	// When the model is already hooked into a hierarchy (i.e. has a parent), do not reparent it
 	// Note: this happens when models are created before views or shared between views
 	if (!item->getViewModelItem()->hasParent())
diff --git a/indra/llui/llfunctorregistry.cpp b/indra/llui/llfunctorregistry.cpp
deleted file mode 100755
index 8003324973..0000000000
--- a/indra/llui/llfunctorregistry.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-/**
- * @file llfunctorregistry.cpp
- * @author Kent Quirk
- * @brief Maintains a registry of named callback functors taking a single LLSD parameter
- *
- * $LicenseInfo:firstyear=2008&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library 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
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- **/
-
-#include "linden_common.h"
-#include "llfunctorregistry.h"
-
-// This is a default functor always resident in the system.
-// It's used whenever a functor isn't found in the registry, so that
-// we at least log the data relating to the user response.
diff --git a/indra/llui/lllayoutstack.cpp b/indra/llui/lllayoutstack.cpp
index e33ac1d5c2..edb32954c6 100755
--- a/indra/llui/lllayoutstack.cpp
+++ b/indra/llui/lllayoutstack.cpp
@@ -41,12 +41,6 @@ static const F32 MAX_FRACTIONAL_SIZE = 1.f;
 static LLDefaultChildRegistry::Register<LLLayoutStack> register_layout_stack("layout_stack");
 static LLLayoutStack::LayoutStackRegistry::Register<LLLayoutPanel> register_layout_panel("layout_panel");
 
-void LLLayoutStack::OrientationNames::declareValues()
-{
-	declare("horizontal", HORIZONTAL);
-	declare("vertical", VERTICAL);
-}
-
 //
 // LLLayoutPanel
 //
@@ -140,7 +134,7 @@ S32 LLLayoutPanel::getVisibleDim() const
 						+ (((F32)mTargetDim - min_dim) * (1.f - mCollapseAmt))));
 }
  
-void LLLayoutPanel::setOrientation( LLLayoutStack::ELayoutOrientation orientation )
+void LLLayoutPanel::setOrientation( LLView::EOrientation orientation )
 {
 	mOrientation = orientation;
 	S32 layout_dim = llround((F32)((mOrientation == LLLayoutStack::HORIZONTAL)
@@ -590,7 +584,7 @@ bool LLLayoutStack::animatePanels()
 			{
 				if (!mAnimatedThisFrame)
 				{
-					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 1.f, LLCriticalDamp::getInterpolant(mOpenTimeConstant));
+					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 1.f, LLSmoothInterpolation::getInterpolant(mOpenTimeConstant));
 					if (panelp->mVisibleAmt > 0.99f)
 					{
 						panelp->mVisibleAmt = 1.f;
@@ -615,7 +609,7 @@ bool LLLayoutStack::animatePanels()
 			{
 				if (!mAnimatedThisFrame)
 				{
-					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 0.f, LLCriticalDamp::getInterpolant(mCloseTimeConstant));
+					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 0.f, LLSmoothInterpolation::getInterpolant(mCloseTimeConstant));
 					if (panelp->mVisibleAmt < 0.001f)
 					{
 						panelp->mVisibleAmt = 0.f;
@@ -642,7 +636,7 @@ bool LLLayoutStack::animatePanels()
 			{
 				if (!mAnimatedThisFrame)
 				{
-					panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLCriticalDamp::getInterpolant(mCloseTimeConstant));
+					panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLSmoothInterpolation::getInterpolant(mCloseTimeConstant));
 				}
 			
 				if (llabs(panelp->mCollapseAmt - collapse_state) < 0.001f)
diff --git a/indra/llui/lllayoutstack.h b/indra/llui/lllayoutstack.h
index 02c664f1a0..5930741d5c 100755
--- a/indra/llui/lllayoutstack.h
+++ b/indra/llui/lllayoutstack.h
@@ -38,24 +38,13 @@ 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<ELayoutOrientation, OrientationNames>	orientation;
+		Mandatory<EOrientation>	orientation;
 		Optional<S32>			border_size;
 		Optional<bool>			animate,
 								clip;
@@ -105,7 +94,7 @@ private:
 	bool animatePanels();
 	void createResizeBar(LLLayoutPanel* panel);
 
-	const ELayoutOrientation mOrientation;
+	const EOrientation mOrientation;
 
 	typedef std::vector<LLLayoutPanel*> e_panel_list_t;
 	e_panel_list_t mPanels;
@@ -183,7 +172,7 @@ public:
 
 	bool isCollapsed() const { return mCollapsed;}
 
-	void setOrientation(LLLayoutStack::ELayoutOrientation orientation);
+	void setOrientation(LLView::EOrientation orientation);
 	void storeOriginalDim();
 
 	void setIgnoreReshape(bool ignore) { mIgnoreReshape = ignore; }
@@ -202,7 +191,7 @@ protected:
 	F32		mFractionalSize;
 	S32		mTargetDim;
 	bool	mIgnoreReshape;
-	LLLayoutStack::ELayoutOrientation mOrientation;
+	LLView::EOrientation mOrientation;
 	class LLResizeBar* mResizeBar;
 };
 
diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index f7bf39c897..385dbc6e19 100755
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -549,13 +549,13 @@ BOOL LLMenuItemGL::setLabelArg( const std::string& key, const LLStringExplicit&
 	return TRUE;
 }
 
-void LLMenuItemGL::handleVisibilityChange(BOOL new_visibility)
+void LLMenuItemGL::onVisibilityChange(BOOL new_visibility)
 {
 	if (getMenu())
 	{
 		getMenu()->needsArrange();
 	}
-	LLView::handleVisibilityChange(new_visibility);
+	LLView::onVisibilityChange(new_visibility);
 }
 
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1146,13 +1146,13 @@ void LLMenuItemBranchGL::updateBranchParent(LLView* parentp)
 	}
 }
 
-void LLMenuItemBranchGL::handleVisibilityChange( BOOL new_visibility )
+void LLMenuItemBranchGL::onVisibilityChange( BOOL new_visibility )
 {
 	if (new_visibility == FALSE && getBranch() && !getBranch()->getTornOff())
 	{
 		getBranch()->setVisible(FALSE);
 	}
-	LLMenuItemGL::handleVisibilityChange(new_visibility);
+	LLMenuItemGL::onVisibilityChange(new_visibility);
 }
 
 BOOL LLMenuItemBranchGL::handleKeyHere( KEY key, MASK mask )
@@ -1794,7 +1794,7 @@ bool LLMenuGL::addContextChild(LLView* view, S32 tab_group)
 	{
 		return appendMenu(menup);
 	}
-	
+
 	return false;
 }
 
@@ -3749,7 +3749,7 @@ void LLTearOffMenu::draw()
 	if (getRect().getHeight() != mTargetHeight)
 	{
 		// animate towards target height
-		reshape(getRect().getWidth(), llceil(lerp((F32)getRect().getHeight(), mTargetHeight, LLCriticalDamp::getInterpolant(0.05f))));
+		reshape(getRect().getWidth(), llceil(lerp((F32)getRect().getHeight(), mTargetHeight, LLSmoothInterpolation::getInterpolant(0.05f))));
 	}
 	LLFloater::draw();
 }
diff --git a/indra/llui/llmenugl.h b/indra/llui/llmenugl.h
index 51df5df1f8..feafaab199 100755
--- a/indra/llui/llmenugl.h
+++ b/indra/llui/llmenugl.h
@@ -82,7 +82,7 @@ protected:
 	friend class LLUICtrlFactory;
 public:
 	// LLView overrides
-	/*virtual*/ void handleVisibilityChange(BOOL new_visibility);
+	/*virtual*/ void onVisibilityChange(BOOL new_visibility);
 	/*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask);
 	/*virtual*/ BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
 	/*virtual*/ BOOL handleRightMouseUp(S32 x, S32 y, MASK mask);
@@ -637,7 +637,7 @@ public:
 	virtual void updateBranchParent( LLView* parentp );
 
 	// LLView Functionality
-	virtual void handleVisibilityChange( BOOL curVisibilityIn );
+	virtual void onVisibilityChange( BOOL curVisibilityIn );
 
 	virtual void draw();
 
diff --git a/indra/llui/llmultifloater.h b/indra/llui/llmultifloater.h
index d992212650..c1b1a357ed 100755
--- a/indra/llui/llmultifloater.h
+++ b/indra/llui/llmultifloater.h
@@ -100,6 +100,3 @@ private:
 };
 
 #endif  // LL_MULTI_FLOATER_H
-
-
-
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index 1789f003b9..37b0a52036 100755
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -516,7 +516,7 @@ LLNotification::LLNotification(const LLSDParamAdapter<Params>& p) :
 
 
 LLSD LLNotification::asLLSD(bool excludeTemplateElements)
-{
+{ 
 	LLParamSDParser parser;
 
 	Params p;
@@ -544,12 +544,12 @@ LLSD LLNotification::asLLSD(bool excludeTemplateElements)
         mForm->getElements(dynamicElements, templateForm->getNumElements());
         p.form_elements = dynamicElements;
     }
-    
+
     if(mResponder)
     {
         p.functor.responder_sd = mResponder->asLLSD();
     }
-    
+
 	if(!mResponseFunctorName.empty())
 	{
 		p.functor.name = mResponseFunctorName;
diff --git a/indra/llui/llnotifications.h b/indra/llui/llnotifications.h
index 87573c2a56..2948f88755 100755
--- a/indra/llui/llnotifications.h
+++ b/indra/llui/llnotifications.h
@@ -92,6 +92,7 @@
 #include "llevents.h"
 #include "llfunctorregistry.h"
 #include "llinitparam.h"
+#include "llinstancetracker.h"
 #include "llmortician.h"
 #include "llnotificationptr.h"
 #include "llpointer.h"
@@ -845,7 +846,7 @@ public:
     Iterator begin();
     Iterator end();
 	size_t size();
-
+	
 	std::string summarize();
 
 private:
diff --git a/indra/llui/llnotificationtemplate.h b/indra/llui/llnotificationtemplate.h
index 18a82190b5..0315ddbea8 100755
--- a/indra/llui/llnotificationtemplate.h
+++ b/indra/llui/llnotificationtemplate.h
@@ -28,32 +28,9 @@
 #ifndef LL_LLNOTIFICATION_TEMPLATE_H
 #define LL_LLNOTIFICATION_TEMPLATE_H
 
-//#include <string>
-//#include <list>
-//#include <vector>
-//#include <map>
-//#include <set>
-//#include <iomanip>
-//#include <sstream>
-//
-//#include <boost/utility.hpp>
-//#include <boost/shared_ptr.hpp>
-//#include <boost/enable_shared_from_this.hpp>
-//#include <boost/type_traits.hpp>
-//
-//// we want to minimize external dependencies, but this one is important
-//#include "llsd.h"
-//
-//// and we need this to manage the notification callbacks
-//#include "llevents.h"
-//#include "llfunctorregistry.h"
-//#include "llpointer.h"
 #include "llinitparam.h"
-//#include "llnotificationptr.h"
-//#include "llcachename.h"
 #include "llnotifications.h"
 
-
 typedef boost::shared_ptr<LLNotificationForm> LLNotificationFormPtr;
 
 // This is the class of object read from the XML file (notifications.xml, 
diff --git a/indra/llui/llpanel.cpp b/indra/llui/llpanel.cpp
index 67472ad166..f157d6a923 100755
--- a/indra/llui/llpanel.cpp
+++ b/indra/llui/llpanel.cpp
@@ -342,9 +342,9 @@ BOOL LLPanel::handleKeyHere( KEY key, MASK mask )
 	return handled;
 }
 
-void LLPanel::handleVisibilityChange ( BOOL new_visibility )
+void LLPanel::onVisibilityChange ( BOOL new_visibility )
 {
-	LLUICtrl::handleVisibilityChange ( new_visibility );
+	LLUICtrl::onVisibilityChange ( new_visibility );
 	if (mVisibleSignal)
 		(*mVisibleSignal)(this, LLSD(new_visibility) ); // Pass BOOL as LLSD
 }
@@ -520,7 +520,7 @@ BOOL LLPanel::initPanelXML(LLXMLNodePtr node, LLView *parent, LLXMLNodePtr outpu
 				Params output_params(params);
 				setupParamsForExport(output_params, parent);
 				output_node->setName(node->getName()->mString);
-				parser.writeXUI(output_node, output_params, &default_params);
+				parser.writeXUI(output_node, output_params, LLInitParam::default_parse_rules(), &default_params);
 				return TRUE;
 			}
 		
@@ -551,7 +551,7 @@ BOOL LLPanel::initPanelXML(LLXMLNodePtr node, LLView *parent, LLXMLNodePtr outpu
 			Params output_params(params);
 			setupParamsForExport(output_params, parent);
 			output_node->setName(node->getName()->mString);
-			parser.writeXUI(output_node, output_params, &default_params);
+			parser.writeXUI(output_node, output_params, LLInitParam::default_parse_rules(), &default_params);
 		}
 		
 		params.from_xui = true;
diff --git a/indra/llui/llpanel.h b/indra/llui/llpanel.h
index e63b41f97c..ac8583ece9 100755
--- a/indra/llui/llpanel.h
+++ b/indra/llui/llpanel.h
@@ -115,7 +115,7 @@ public:
 	/*virtual*/ BOOL 	isPanel() const;
 	/*virtual*/ void	draw();	
 	/*virtual*/ BOOL	handleKeyHere( KEY key, MASK mask );
-	/*virtual*/ void 	handleVisibilityChange ( BOOL new_visibility );
+	/*virtual*/ void 	onVisibilityChange ( BOOL new_visibility );
 
 	// From LLFocusableElement
 	/*virtual*/ void	setFocus( BOOL b );
diff --git a/indra/llui/llscrollbar.cpp b/indra/llui/llscrollbar.cpp
index 13887cbe73..bef1854748 100755
--- a/indra/llui/llscrollbar.cpp
+++ b/indra/llui/llscrollbar.cpp
@@ -493,11 +493,11 @@ void LLScrollbar::draw()
 	BOOL hovered = getEnabled() && !other_captor && (hasMouseCapture() || mThumbRect.pointInRect(local_mouse_x, local_mouse_y));
 	if (hovered)
 	{
-		mCurGlowStrength = lerp(mCurGlowStrength, mHoverGlowStrength, LLCriticalDamp::getInterpolant(0.05f));
+		mCurGlowStrength = lerp(mCurGlowStrength, mHoverGlowStrength, LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 	else
 	{
-		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLCriticalDamp::getInterpolant(0.05f));
+		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 
 	// Draw background and thumb.
diff --git a/indra/llui/llscrollbar.h b/indra/llui/llscrollbar.h
index 21fd2d631e..e2bf52c14b 100755
--- a/indra/llui/llscrollbar.h
+++ b/indra/llui/llscrollbar.h
@@ -40,13 +40,11 @@ class LLScrollbar
 {
 public:
 
-	enum ORIENTATION { HORIZONTAL, VERTICAL };
-	
 	typedef boost::function<void (S32, LLScrollbar*)> callback_t;
 	struct Params 
 	:	public LLInitParam::Block<Params, LLUICtrl::Params>
 	{
-		Mandatory<ORIENTATION>			orientation;
+		Mandatory<EOrientation>			orientation;
 		Mandatory<S32>					doc_size;
 		Mandatory<S32>					doc_pos;
 		Mandatory<S32>					page_size;
@@ -124,7 +122,7 @@ public:
 
 	void				onLineUpBtnPressed(const LLSD& data);
 	void				onLineDownBtnPressed(const LLSD& data);
-		
+
 	S32					getThickness() const { return mThickness; }
 	void				setThickness(S32 thickness);
 
@@ -134,7 +132,7 @@ private:
 
 	callback_t			mChangeCallback;
 
-	const ORIENTATION	mOrientation;	
+	const EOrientation	mOrientation;	
 	S32					mDocSize;		// Size of the document that the scrollbar is modeling.  Units depend on the user.  0 <= mDocSize.
 	S32					mDocPos;		// Position within the doc that the scrollbar is modeling, in "lines" (user size)
 	S32					mPageSize;		// Maximum number of lines that can be seen at one time.
diff --git a/indra/llui/llscrollcontainer.cpp b/indra/llui/llscrollcontainer.cpp
index cbcce0ece5..3b5fb2adfb 100755
--- a/indra/llui/llscrollcontainer.cpp
+++ b/indra/llui/llscrollcontainer.cpp
@@ -144,7 +144,7 @@ LLScrollContainer::~LLScrollContainer( void )
 {
 	// mScrolledView and mScrollbar are child views, so the LLView
 	// destructor takes care of memory deallocation.
-	for( S32 i = 0; i < SCROLLBAR_COUNT; i++ )
+	for( S32 i = 0; i < ORIENTATION_COUNT; i++ )
 	{
 		mScrollbar[i] = NULL;
 	}
@@ -215,7 +215,7 @@ BOOL LLScrollContainer::handleKeyHere(KEY key, MASK mask)
 	{
 		return TRUE;
 	}
-	for( S32 i = 0; i < SCROLLBAR_COUNT; i++ )
+	for( S32 i = 0; i < ORIENTATION_COUNT; i++ )
 	{
 		if( mScrollbar[i]->handleKeyHere(key, mask) )
 		{
diff --git a/indra/llui/llscrollcontainer.h b/indra/llui/llscrollcontainer.h
index 4eb43539b8..b67236c939 100755
--- a/indra/llui/llscrollcontainer.h
+++ b/indra/llui/llscrollcontainer.h
@@ -56,7 +56,6 @@ class LLScrollContainer : public LLUICtrl
 public:
 	// Note: vertical comes before horizontal because vertical
 	// scrollbars have priority for mouse and keyboard events.
-	enum SCROLL_ORIENTATION { VERTICAL, HORIZONTAL, SCROLLBAR_COUNT };
 
 	struct Params : public LLInitParam::Block<Params, LLUICtrl::Params>
 	{
@@ -130,7 +129,7 @@ private:
 	void updateScroll();
 	void calcVisibleSize( S32 *visible_width, S32 *visible_height, BOOL* show_h_scrollbar, BOOL* show_v_scrollbar ) const;
 
-	LLScrollbar* mScrollbar[SCROLLBAR_COUNT];
+	LLScrollbar* mScrollbar[ORIENTATION_COUNT];
 	S32			mSize;
 	BOOL		mIsOpaque;
 	LLUIColor	mBackgroundColor;
diff --git a/indra/llui/llslider.h b/indra/llui/llslider.h
index 700c17ea3e..3b492d8182 100755
--- a/indra/llui/llslider.h
+++ b/indra/llui/llslider.h
@@ -34,8 +34,6 @@
 class LLSlider : public LLF32UICtrl
 {
 public:
-	enum ORIENTATION { HORIZONTAL, VERTICAL };
-
 	struct Params : public LLInitParam::Block<Params, LLF32UICtrl::Params>
 	{
 		Optional<std::string> orientation;
@@ -98,7 +96,7 @@ private:
 	LLPointer<LLUIImage>	mTrackHighlightHorizontalImage;
 	LLPointer<LLUIImage>	mTrackHighlightVerticalImage;
 
-	const ORIENTATION	mOrientation;
+	const EOrientation	mOrientation;
 
 	LLRect		mThumbRect;
 	LLUIColor	mTrackColor;
diff --git a/indra/llui/llstatbar.cpp b/indra/llui/llstatbar.cpp
index 04cce7878e..6966df8213 100755
--- a/indra/llui/llstatbar.cpp
+++ b/indra/llui/llstatbar.cpp
@@ -34,8 +34,9 @@
 #include "llgl.h"
 #include "llfontgl.h"
 
-#include "llstat.h"
 #include "lluictrlfactory.h"
+#include "lltracerecording.h"
+#include "llcriticaldamp.h"
 
 ///////////////////////////////////////////////////////////////////////////////////
 
@@ -45,68 +46,105 @@ LLStatBar::LLStatBar(const Params& p)
 	  mUnitLabel(p.unit_label),
 	  mMinBar(p.bar_min),
 	  mMaxBar(p.bar_max),
-	  mStatp(LLStat::getStat(p.stat)),
+	  mCurMaxBar(p.bar_max),
 	  mTickSpacing(p.tick_spacing),
-	  mLabelSpacing(p.label_spacing),
 	  mPrecision(p.precision),
 	  mUpdatesPerSec(p.update_rate),
+	  mUnitScale(p.unit_scale),
+	  mNumFrames(p.num_frames),
+	  mMaxHeight(p.max_height),
 	  mPerSec(p.show_per_sec),
 	  mDisplayBar(p.show_bar),
 	  mDisplayHistory(p.show_history),
-	  mDisplayMean(p.show_mean)
+	  mDisplayMean(p.show_mean),
+	  mOrientation(p.orientation),
+	  mScaleRange(p.scale_range)
 {
+	setStat(p.stat);
 }
 
 BOOL LLStatBar::handleMouseDown(S32 x, S32 y, MASK mask)
 {
-	if (mDisplayBar)
+	BOOL handled = LLView::handleMouseDown(x, y, mask);
+	if (!handled)
 	{
-		if (mDisplayHistory)
+		if (mDisplayBar)
 		{
-			mDisplayBar = FALSE;
-			mDisplayHistory = FALSE;
+			if (mDisplayHistory || mOrientation == HORIZONTAL)
+			{
+				mDisplayBar = FALSE;
+				mDisplayHistory = FALSE;
+			}
+			else
+			{
+				mDisplayHistory = TRUE;
+			}
 		}
 		else
 		{
-			mDisplayHistory = TRUE;
+			mDisplayBar = TRUE;
+			if (mOrientation == HORIZONTAL)
+			{
+				mDisplayHistory = TRUE;
+			}
 		}
+		LLView* parent = getParent();
+		parent->reshape(parent->getRect().getWidth(), parent->getRect().getHeight(), FALSE);
 	}
-	else
-	{
-		mDisplayBar = TRUE;
-	}
-
-	LLView* parent = getParent();
-	parent->reshape(parent->getRect().getWidth(), parent->getRect().getHeight(), FALSE);
-
-	return FALSE;
+	return TRUE;
 }
 
 void LLStatBar::draw()
 {
-	if (!mStatp)
+	F32 current = 0.f, 
+		min     = 0.f, 
+		max     = 0.f,
+		mean    = 0.f;
+
+	LLTrace::PeriodicRecording& frame_recording = LLTrace::get_frame_recording();
+
+	if (mCountFloatp)
 	{
-//		llinfos << "No stats for statistics bar!" << llendl;
-		return;
-	}
+		LLTrace::Recording& last_frame_recording = frame_recording.getLastRecording(); 
 
-	// Get the values.
-	F32 current, min, max, mean;
-	if (mPerSec)
+		if (mPerSec)
+		{
+			current = last_frame_recording.getPerSec(*mCountFloatp);
+			min     = frame_recording.getPeriodMinPerSec(*mCountFloatp, mNumFrames);
+			max     = frame_recording.getPeriodMaxPerSec(*mCountFloatp, mNumFrames);
+			mean    = frame_recording.getPeriodMeanPerSec(*mCountFloatp, mNumFrames);
+		}
+		else
+		{
+			current = last_frame_recording.getSum(*mCountFloatp);
+			min     = frame_recording.getPeriodMin(*mCountFloatp, mNumFrames);
+			max     = frame_recording.getPeriodMax(*mCountFloatp, mNumFrames);
+			mean    = frame_recording.getPeriodMean(*mCountFloatp, mNumFrames);
+		}
+	}
+	else if (mEventFloatp)
 	{
-		current = mStatp->getCurrentPerSec();
-		min = mStatp->getMinPerSec();
-		max = mStatp->getMaxPerSec();
-		mean = mStatp->getMeanPerSec();
+		LLTrace::Recording& last_frame_recording = frame_recording.getLastRecording();
+
+		current = last_frame_recording.getMean(*mEventFloatp);
+		min     = frame_recording.getPeriodMin(*mEventFloatp, mNumFrames);
+		max     = frame_recording.getPeriodMax(*mEventFloatp, mNumFrames);
+		mean    = frame_recording.getPeriodMean(*mEventFloatp, mNumFrames);
 	}
-	else
+	else if (mSampleFloatp)
 	{
-		current = mStatp->getCurrent();
-		min = mStatp->getMin();
-		max = mStatp->getMax();
-		mean = mStatp->getMean();
+		LLTrace::Recording& last_frame_recording = frame_recording.getLastRecording();
+
+		current = last_frame_recording.getLastValue(*mSampleFloatp);
+		min     = frame_recording.getPeriodMin(*mSampleFloatp, mNumFrames);
+		max     = frame_recording.getPeriodMax(*mSampleFloatp, mNumFrames);
+		mean    = frame_recording.getPeriodMean(*mSampleFloatp, mNumFrames);
 	}
 
+	current *= mUnitScale;
+	min     *= mUnitScale;
+	max     *= mUnitScale;
+	mean    *= mUnitScale;
 
 	if ((mUpdatesPerSec == 0.f) || (mUpdateTimer.getElapsedTimeF32() > 1.f/mUpdatesPerSec) || (mValue == 0.f))
 	{
@@ -121,15 +159,41 @@ void LLStatBar::draw()
 		mUpdateTimer.reset();
 	}
 
-	S32 width = getRect().getWidth() - 40;
-	S32 max_width = width;
-	S32 bar_top = getRect().getHeight() - 15; // 16 pixels from top.
-	S32 bar_height = bar_top - 20;
-	S32 tick_height = 4;
-	S32 tick_width = 1;
-	S32 left, top, right, bottom;
+	S32 bar_top, bar_left, bar_right, bar_bottom;
+	if (mOrientation == HORIZONTAL)
+	{
+		bar_top    = llmax(5, getRect().getHeight() - 15); 
+		bar_left   = 0;
+		bar_right  = getRect().getWidth() - 40;
+		bar_bottom = llmin(bar_top - 5, 0);
+	}
+	else // VERTICAL
+	{
+		bar_top    = llmax(5, getRect().getHeight() - 15); 
+		bar_left   = 0;
+		bar_right  = getRect().getWidth();
+		bar_bottom = llmin(bar_top - 5, 20);
+	}
+	const S32 tick_length = 4;
+	const S32 tick_width = 1;
 
-	F32 value_scale = max_width/(mMaxBar - mMinBar);
+	if (mScaleRange && min < max)
+	{
+		F32 cur_max = mTickSpacing;
+		while(max > cur_max && mMaxBar > cur_max)
+		{
+			cur_max += mTickSpacing;
+		}
+		mCurMaxBar = LLSmoothInterpolation::lerp(mCurMaxBar, cur_max, 0.05f);
+	}
+	else
+	{
+		mCurMaxBar = mMaxBar;
+	}
+
+	F32 value_scale = (mOrientation == HORIZONTAL) 
+					? (bar_top - bar_bottom)/(mCurMaxBar - mMinBar)
+					: (bar_right - bar_left)/(mCurMaxBar - mMinBar);
 
 	LLFontGL::getFontMonospace()->renderUTF8(mLabel, 0, 0, getRect().getHeight(), LLColor4(1.f, 1.f, 1.f, 1.f),
 											 LLFontGL::LEFT, LLFontGL::TOP);
@@ -148,120 +212,231 @@ void LLStatBar::draw()
 	}
 
 	// Draw the value.
-	LLFontGL::getFontMonospace()->renderUTF8(value_str, 0, width, getRect().getHeight(), 
-											 LLColor4(1.f, 1.f, 1.f, 0.5f),
-											 LLFontGL::RIGHT, LLFontGL::TOP);
+	if (mOrientation == HORIZONTAL)
+	{
+		LLFontGL::getFontMonospace()->renderUTF8(value_str, 0, bar_right, getRect().getHeight(), 
+			LLColor4(1.f, 1.f, 1.f, 0.5f),
+			LLFontGL::RIGHT, LLFontGL::TOP);
+	}
+	else
+	{
+		LLFontGL::getFontMonospace()->renderUTF8(value_str, 0, bar_right, getRect().getHeight(), 
+			LLColor4(1.f, 1.f, 1.f, 0.5f),
+			LLFontGL::RIGHT, LLFontGL::TOP);
+	}
 
 	value_format = llformat( "%%.%df", mPrecision);
-	if (mDisplayBar)
+	if (mDisplayBar && (mCountFloatp || mEventFloatp || mSampleFloatp))
 	{
 		std::string tick_label;
 
 		// Draw the tick marks.
-		F32 tick_value;
-		top = bar_top;
-		bottom = bar_top - bar_height - tick_height/2;
-
 		LLGLSUIDefault gls_ui;
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-
-		for (tick_value = mMinBar; tick_value <= mMaxBar; tick_value += mTickSpacing)
-		{
-			left = llfloor((tick_value - mMinBar)*value_scale);
-			right = left + tick_width;
-			gl_rect_2d(left, top, right, bottom, LLColor4(1.f, 1.f, 1.f, 0.1f));
-		}
-
-		// Draw the tick labels (and big ticks).
-		bottom = bar_top - bar_height - tick_height;
-		for (tick_value = mMinBar; tick_value <= mMaxBar; tick_value += mLabelSpacing)
+		S32 last_tick = 0;
+		S32 last_label = 0;
+		const S32 MIN_TICK_SPACING  = mOrientation == HORIZONTAL ? 20 : 30;
+		const S32 MIN_LABEL_SPACING = mOrientation == HORIZONTAL ? 40 : 60;
+		for (F32 tick_value = mMinBar + mTickSpacing; tick_value <= mCurMaxBar; tick_value += mTickSpacing)
 		{
-			left = llfloor((tick_value - mMinBar)*value_scale);
-			right = left + tick_width;
-			gl_rect_2d(left, top, right, bottom, LLColor4(1.f, 1.f, 1.f, 0.25f));
+			const S32 begin = llfloor((tick_value - mMinBar)*value_scale);
+			const S32 end = begin + tick_width;
+			if (begin - last_tick < MIN_TICK_SPACING)
+			{
+				continue;
+			}
+			last_tick = begin;
 
 			tick_label = llformat( value_format.c_str(), tick_value);
-			// draw labels for the tick marks
-			LLFontGL::getFontMonospace()->renderUTF8(tick_label, 0, left - 1, bar_top - bar_height - tick_height,
-													 LLColor4(1.f, 1.f, 1.f, 0.5f),
-													 LLFontGL::LEFT, LLFontGL::TOP);
-		}
 
-		// Now, draw the bars
-		top = bar_top;
-		bottom = bar_top - bar_height;
+			if (mOrientation == HORIZONTAL)
+			{
+				if (begin - last_label > MIN_LABEL_SPACING)
+				{
+					gl_rect_2d(bar_left, end, bar_right - tick_length, begin, LLColor4(1.f, 1.f, 1.f, 0.25f));
+					LLFontGL::getFontMonospace()->renderUTF8(tick_label, 0, bar_right, begin,
+						LLColor4(1.f, 1.f, 1.f, 0.5f),
+						LLFontGL::LEFT, LLFontGL::VCENTER);
+					last_label = begin;
+				}
+				else
+				{
+					gl_rect_2d(bar_left, end, bar_right - tick_length/2, begin, LLColor4(1.f, 1.f, 1.f, 0.1f));
+				}
+			}
+			else
+			{
+				if (begin - last_label > MIN_LABEL_SPACING)
+				{
+					gl_rect_2d(begin, bar_top, end, bar_bottom - tick_length, LLColor4(1.f, 1.f, 1.f, 0.25f));
+					LLFontGL::getFontMonospace()->renderUTF8(tick_label, 0, begin - 1, bar_bottom - tick_length,
+						LLColor4(1.f, 1.f, 1.f, 0.5f),
+						LLFontGL::RIGHT, LLFontGL::TOP);
+					last_label = begin;
+				}
+				else
+				{
+					gl_rect_2d(begin, bar_top, end, bar_bottom - tick_length/2, LLColor4(1.f, 1.f, 1.f, 0.1f));
+				}
+			}
+		}
 
 		// draw background bar.
-		left = 0;
-		right = width;
-		gl_rect_2d(left, top, right, bottom, LLColor4(0.f, 0.f, 0.f, 0.25f));
+		gl_rect_2d(bar_left, bar_top, bar_right, bar_bottom, LLColor4(0.f, 0.f, 0.f, 0.25f));
 
-		if (mStatp->getNumValues() == 0)
+		if (frame_recording.getNumPeriods() == 0)
 		{
 			// No data, don't draw anything...
 			return;
 		}
+
 		// draw min and max
-		left = (S32) ((min - mMinBar) * value_scale);
+		S32 begin = (S32) ((min - mMinBar) * value_scale);
 
-		if (left < 0)
+		if (begin < 0)
 		{
-			left = 0;
+			begin = 0;
 			llwarns << "Min:" << min << llendl;
 		}
 
-		right = (S32) ((max - mMinBar) * value_scale);
-		gl_rect_2d(left, top, right, bottom, LLColor4(1.f, 0.f, 0.f, 0.25f));
+		S32 end = (S32) ((max - mMinBar) * value_scale);
+		if (mOrientation == HORIZONTAL)
+		{
+			gl_rect_2d(bar_left, end, bar_right, begin, LLColor4(1.f, 0.f, 0.f, 0.25f));
+		}
+		else // VERTICAL
+		{
+			gl_rect_2d(begin, bar_top, end, bar_bottom, LLColor4(1.f, 0.f, 0.f, 0.25f));
+		}
+
+		F32 span = (mOrientation == HORIZONTAL)
+					? (bar_right - bar_left)
+					: (bar_top - bar_bottom);
 
-		S32 num_values = mStatp->getNumValues() - 1;
-		if (mDisplayHistory)
+		if (mDisplayHistory && (mCountFloatp || mEventFloatp || mSampleFloatp))
 		{
+			const S32 num_values = frame_recording.getNumPeriods() - 1;
+			F32 begin = 0;
+			F32 end = 0;
 			S32 i;
-			for (i = 0; i < num_values; i++)
+			gGL.color4f( 1.f, 0.f, 0.f, 1.f );
+			gGL.begin( LLRender::QUADS );
+			const S32 max_frame = llmin(mNumFrames, num_values);
+			U32 num_samples = 0;
+			for (i = 1; i <= max_frame; i++)
 			{
-				if (i == mStatp->getNextBin())
+				F32 offset = ((F32)i / (F32)mNumFrames) * span;
+				LLTrace::Recording& recording = frame_recording.getPrevRecording(i);
+				if (mPerSec)
 				{
-					continue;
+					if (mCountFloatp)
+					{
+						begin       = ((recording.getPerSec(*mCountFloatp)  - mMinBar) * value_scale);
+						end         = ((recording.getPerSec(*mCountFloatp)  - mMinBar) * value_scale) + 1;
+						num_samples = recording.getSampleCount(*mCountFloatp);
+					}
+					else if (mEventFloatp)
+					{
+						//rate isn't defined for measurement stats, so use mean
+						begin       = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale);
+						end         = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale) + 1;
+						num_samples = recording.getSampleCount(*mEventFloatp);
+					}
+					else if (mSampleFloatp)
+					{
+						//rate isn't defined for sample stats, so use mean
+						begin       = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale);
+						end         = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale) + 1;
+						num_samples = recording.getSampleCount(*mEventFloatp);
+					}
 				}
-				if (mPerSec)
+				else
+				{
+					if (mCountFloatp)
+					{
+						begin       = ((recording.getSum(*mCountFloatp)  - mMinBar) * value_scale);
+						end         = ((recording.getSum(*mCountFloatp)  - mMinBar) * value_scale) + 1;
+						num_samples = recording.getSampleCount(*mCountFloatp);
+					}
+					else if (mEventFloatp)
+					{
+						begin       = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale);
+						end         = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale) + 1;
+						num_samples = recording.getSampleCount(*mEventFloatp);
+					}
+					else if (mSampleFloatp)
+					{
+						begin       = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale);
+						end         = ((recording.getMean(*mEventFloatp)  - mMinBar) * value_scale) + 1;
+						num_samples = recording.getSampleCount(*mEventFloatp);
+					}
+ 				}
+				
+				if (!num_samples) continue;
+
+				if (mOrientation == HORIZONTAL)
 				{
-					left = (S32)((mStatp->getPrevPerSec(i) - mMinBar) * value_scale);
-					right = (S32)((mStatp->getPrevPerSec(i) - mMinBar) * value_scale) + 1;
-					gl_rect_2d(left, bottom+i+1, right, bottom+i, LLColor4(1.f, 0.f, 0.f, 1.f));
+					gGL.vertex2f((F32)bar_right - offset, end);
+					gGL.vertex2f((F32)bar_right - offset, begin);
+					gGL.vertex2f((F32)bar_right - offset - 1.f, begin);
+					gGL.vertex2f((F32)bar_right - offset - 1.f, end);
 				}
 				else
 				{
-					left = (S32)((mStatp->getPrev(i) - mMinBar) * value_scale);
-					right = (S32)((mStatp->getPrev(i) - mMinBar) * value_scale) + 1;
-					gl_rect_2d(left, bottom+i+1, right, bottom+i, LLColor4(1.f, 0.f, 0.f, 1.f));
+					gGL.vertex2f(begin, (F32)bar_bottom+offset+1.f);
+					gGL.vertex2f(begin, (F32)bar_bottom+offset);
+					gGL.vertex2f(end, (F32)bar_bottom+offset);
+					gGL.vertex2f(end, (F32)bar_bottom+offset+1.f);
 				}
 			}
+			gGL.end();
 		}
 		else
 		{
+			S32 begin = (S32) ((current - mMinBar) * value_scale) - 1;
+			S32 end = (S32) ((current - mMinBar) * value_scale) + 1;
 			// draw current
-			left = (S32) ((current - mMinBar) * value_scale) - 1;
-			right = (S32) ((current - mMinBar) * value_scale) + 1;
-			gl_rect_2d(left, top, right, bottom, LLColor4(1.f, 0.f, 0.f, 1.f));
+			if (mOrientation == HORIZONTAL)
+			{
+				gl_rect_2d(bar_left, end, bar_right, begin, LLColor4(1.f, 0.f, 0.f, 1.f));
+			}
+			else
+			{
+				gl_rect_2d(begin, bar_top, end, bar_bottom, LLColor4(1.f, 0.f, 0.f, 1.f));
+			}
 		}
 
 		// draw mean bar
-		top = bar_top + 2;
-		bottom = bar_top - bar_height - 2;
-		left = (S32) ((mean - mMinBar) * value_scale) - 1;
-		right = (S32) ((mean - mMinBar) * value_scale) + 1;
-		gl_rect_2d(left, top, right, bottom, LLColor4(0.f, 1.f, 0.f, 1.f));
+		{
+			const S32 begin = (S32) ((mean - mMinBar) * value_scale) - 1;
+			const S32 end = (S32) ((mean - mMinBar) * value_scale) + 1;
+			if (mOrientation == HORIZONTAL)
+			{
+				gl_rect_2d(bar_left - 2, begin, bar_right + 2, end, LLColor4(0.f, 1.f, 0.f, 1.f));
+			}
+			else
+			{
+				gl_rect_2d(begin, bar_top + 2, end, bar_bottom - 2, LLColor4(0.f, 1.f, 0.f, 1.f));
+			}
+		}
 	}
 	
 	LLView::draw();
 }
 
-void LLStatBar::setRange(F32 bar_min, F32 bar_max, F32 tick_spacing, F32 label_spacing)
+void LLStatBar::setStat(const std::string& stat_name)
 {
-	mMinBar = bar_min;
-	mMaxBar = bar_max;
-	mTickSpacing = tick_spacing;
-	mLabelSpacing = label_spacing;
+	mCountFloatp	= LLTrace::TraceType<LLTrace::CountAccumulator>::getInstance(stat_name);
+	mEventFloatp	= LLTrace::TraceType<LLTrace::EventAccumulator>::getInstance(stat_name);
+	mSampleFloatp	= LLTrace::TraceType<LLTrace::SampleAccumulator>::getInstance(stat_name);
+}
+
+
+void LLStatBar::setRange(F32 bar_min, F32 bar_max, F32 tick_spacing)
+{
+	mMinBar			= bar_min;
+	mMaxBar			= bar_max;
+	mTickSpacing	= tick_spacing;
 }
 
 LLRect LLStatBar::getRequiredRect()
@@ -272,7 +447,7 @@ LLRect LLStatBar::getRequiredRect()
 	{
 		if (mDisplayHistory)
 		{
-			rect.mTop = 35 + mStatp->getNumBins();
+			rect.mTop = mMaxHeight;
 		}
 		else
 		{
@@ -285,3 +460,4 @@ LLRect LLStatBar::getRequiredRect()
 	}
 	return rect;
 }
+
diff --git a/indra/llui/llstatbar.h b/indra/llui/llstatbar.h
index 513fff3234..3daec297bb 100755
--- a/indra/llui/llstatbar.h
+++ b/indra/llui/llstatbar.h
@@ -29,41 +29,54 @@
 
 #include "llview.h"
 #include "llframetimer.h"
-
-class LLStat;
+#include "lltracerecording.h"
 
 class LLStatBar : public LLView
 {
 public:
+
 	struct Params : public LLInitParam::Block<Params, LLView::Params>
 	{
-		Optional<std::string> label;
-		Optional<std::string> unit_label;
-		Optional<F32> bar_min;
-		Optional<F32> bar_max;
-		Optional<F32> tick_spacing;
-		Optional<F32> label_spacing;
-		Optional<U32> precision;
-		Optional<F32> update_rate;
-		Optional<bool> show_per_sec;
-		Optional<bool> show_bar;
-		Optional<bool> show_history;
-		Optional<bool> show_mean;
-		Optional<std::string> stat;
+		Optional<std::string>	label,
+								unit_label;
+
+		Optional<F32>			bar_min,
+								bar_max,
+								tick_spacing,
+								update_rate,
+								unit_scale;
+
+		Optional<U32>			precision;
+
+		Optional<bool>			show_per_sec,
+								show_bar,
+								show_history,
+								show_mean,
+								scale_range;
+
+		Optional<S32>			num_frames,
+								max_height;
+		Optional<std::string>	stat;
+		Optional<EOrientation>	orientation;
+
 		Params()
 			: label("label"),
 			  unit_label("unit_label"),
 			  bar_min("bar_min", 0.0f),
 			  bar_max("bar_max", 50.0f),
 			  tick_spacing("tick_spacing", 10.0f),
-			  label_spacing("label_spacing", 10.0f),
 			  precision("precision", 0),
 			  update_rate("update_rate", 5.0f),
-			  show_per_sec("show_per_sec", TRUE),
-			  show_bar("show_bar", TRUE),
-			  show_history("show_history", FALSE),
-			  show_mean("show_mean", TRUE),
-			  stat("stat")
+			  unit_scale("unit_scale", 1.f),
+			  show_per_sec("show_per_sec", true),
+			  show_bar("show_bar", true),
+			  show_history("show_history", false),
+			  show_mean("show_mean", true),
+			  scale_range("scale_range", true),
+			  num_frames("num_frames", 300),
+			  max_height("max_height", 200),
+			  stat("stat"),
+			  orientation("orientation", VERTICAL)
 		{
 			changeDefault(follows.flags, FOLLOWS_TOP | FOLLOWS_LEFT);
 		}
@@ -73,30 +86,39 @@ public:
 	virtual void draw();
 	virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
 
-	void setStat(LLStat* stat) { mStatp = stat; }
-	void setRange(F32 bar_min, F32 bar_max, F32 tick_spacing, F32 label_spacing);
+	void setStat(const std::string& stat_name);
+
+	void setRange(F32 bar_min, F32 bar_max, F32 tick_spacing);
 	void getRange(F32& bar_min, F32& bar_max) { bar_min = mMinBar; bar_max = mMaxBar; }
 	
 	/*virtual*/ LLRect getRequiredRect();	// Return the height of this object, given the set options.
 
 private:
-	F32 mMinBar;
-	F32 mMaxBar;
-	F32 mTickSpacing;
-	F32 mLabelSpacing;
-	U32 mPrecision;
-	F32 mUpdatesPerSec;
-	BOOL mPerSec;				// Use the per sec stats.
-	BOOL mDisplayBar;			// Display the bar graph.
-	BOOL mDisplayHistory;
-	BOOL mDisplayMean;			// If true, display mean, if false, display current value
-
-	LLStat* mStatp;
+	F32          mMinBar;
+	F32          mMaxBar;
+	F32			 mCurMaxBar;
+	F32          mTickSpacing;
+	F32          mLabelSpacing;
+	U32          mPrecision;
+	F32          mUpdatesPerSec;
+	F32          mUnitScale;
+	S32			 mNumFrames;
+	S32			 mMaxHeight;
+	bool         mPerSec;				// Use the per sec stats.
+	bool         mDisplayBar;			// Display the bar graph.
+	bool         mDisplayHistory;
+	bool         mDisplayMean;			// If true, display mean, if false, display current value
+	bool		 mScaleRange;
+	EOrientation mOrientation;
+
+	LLTrace::TraceType<LLTrace::CountAccumulator>*			mCountFloatp;
+	LLTrace::TraceType<LLTrace::EventAccumulator>*			mEventFloatp;
+	LLTrace::TraceType<LLTrace::SampleAccumulator>*			mSampleFloatp;
 
 	LLFrameTimer mUpdateTimer;
-	LLUIString mLabel;
-	std::string mUnitLabel;
-	F32 mValue;
+	LLUIString   mLabel;
+	std::string  mUnitLabel;
+	F32          mValue;
 };
 
 #endif
diff --git a/indra/llui/llstatgraph.cpp b/indra/llui/llstatgraph.cpp
index e44887ebf0..a44bc18733 100755
--- a/indra/llui/llstatgraph.cpp
+++ b/indra/llui/llstatgraph.cpp
@@ -32,48 +32,51 @@
 
 #include "llmath.h"
 #include "llui.h"
-#include "llstat.h"
 #include "llgl.h"
 #include "llglheaders.h"
+#include "lltracerecording.h"
+#include "lltracethreadrecorder.h"
 //#include "llviewercontrol.h"
 
 ///////////////////////////////////////////////////////////////////////////////////
 
-LLStatGraph::LLStatGraph(const LLView::Params& p)
-:	LLView(p)
+LLStatGraph::LLStatGraph(const Params& p)
+:	LLView(p),
+	mMin(p.min),
+	mMax(p.max),
+	mPerSec(true),
+	mPrecision(p.precision),
+	mValue(p.value),
+	mNewStatFloatp(p.stat.count_stat_float)
 {
-	mStatp = NULL;
 	setToolTip(p.name());
-	mNumThresholds = 3;
-	mThresholdColors[0] = LLColor4(0.f, 1.f, 0.f, 1.f);
-	mThresholdColors[1] = LLColor4(1.f, 1.f, 0.f, 1.f);
-	mThresholdColors[2] = LLColor4(1.f, 0.f, 0.f, 1.f);
-	mThresholdColors[3] = LLColor4(1.f, 0.f, 0.f, 1.f);
-	mThresholds[0] = 50.f;
-	mThresholds[1] = 75.f;
-	mThresholds[2] = 100.f;
-	mMin = 0.f;
-	mMax = 125.f;
-	mPerSec = TRUE;
-	mValue = 0.f;
-	mPrecision = 0;
+
+	for(LLInitParam::ParamIterator<ThresholdParams>::const_iterator it = p.thresholds.threshold.begin(), end_it = p.thresholds.threshold.end();
+		it != end_it;
+		++it)
+	{
+		mThresholds.push_back(Threshold(it->value(), it->color));
+	}
 }
 
 void LLStatGraph::draw()
 {
 	F32 range, frac;
 	range = mMax - mMin;
-	if (mStatp)
+	if (mNewStatFloatp)
 	{
+		LLTrace::Recording& recording = LLTrace::get_frame_recording().getLastRecording();
+
 		if (mPerSec)
 		{
-			mValue = mStatp->getMeanPerSec();
+			mValue = recording.getPerSec(*mNewStatFloatp);
 		}
 		else
 		{
-			mValue = mStatp->getMean();
+			mValue = recording.getSum(*mNewStatFloatp);
 		}
 	}
+
 	frac = (mValue - mMin) / range;
 	frac = llmax(0.f, frac);
 	frac = llmin(1.f, frac);
@@ -91,19 +94,13 @@ void LLStatGraph::draw()
 
 	LLColor4 color;
 
-	S32 i;
-	for (i = 0; i < mNumThresholds - 1; i++)
+	threshold_vec_t::iterator it = std::lower_bound(mThresholds.begin(), mThresholds.end(), Threshold(mValue / mMax, LLUIColor()));
+
+	if (it != mThresholds.begin())
 	{
-		if (mThresholds[i] > mValue)
-		{
-			break;
-		}
+		it--;
 	}
 
-	//gl_drop_shadow(0,  getRect().getHeight(), getRect().getWidth(), 0,
-	//				LLUIColorTable::instance().getColor("ColorDropShadow"), 
-	//				(S32) gSavedSettings.getF32("DropShadowFloater") );
-
 	color = LLUIColorTable::instance().getColor( "MenuDefaultBgColor" );
 	gGL.color4fv(color.mV);
 	gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0, TRUE);
@@ -111,16 +108,11 @@ void LLStatGraph::draw()
 	gGL.color4fv(LLColor4::black.mV);
 	gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0, FALSE);
 	
-	color = mThresholdColors[i];
+	color = it->mColor;
 	gGL.color4fv(color.mV);
 	gl_rect_2d(1, llround(frac*getRect().getHeight()), getRect().getWidth() - 1, 0, TRUE);
 }
 
-void LLStatGraph::setValue(const LLSD& value)
-{
-	mValue = (F32)value.asReal();
-}
-
 void LLStatGraph::setMin(const F32 min)
 {
 	mMin = min;
@@ -131,27 +123,3 @@ void LLStatGraph::setMax(const F32 max)
 	mMax = max;
 }
 
-void LLStatGraph::setStat(LLStat *statp)
-{
-	mStatp = statp;
-}
-
-void LLStatGraph::setLabel(const std::string& label)
-{
-	mLabel = label;
-}
-
-void LLStatGraph::setUnits(const std::string& units)
-{
-	mUnits = units;
-}
-
-void LLStatGraph::setPrecision(const S32 precision)
-{
-	mPrecision = precision;
-}
-
-void LLStatGraph::setThreshold(const S32 i, F32 value)
-{
-	mThresholds[i] = value;
-}
diff --git a/indra/llui/llstatgraph.h b/indra/llui/llstatgraph.h
index 757525e232..38fe12d18b 100755
--- a/indra/llui/llstatgraph.h
+++ b/indra/llui/llstatgraph.h
@@ -30,29 +30,84 @@
 #include "llview.h"
 #include "llframetimer.h"
 #include "v4color.h"
-
-class LLStat;
+#include "lltrace.h"
 
 class LLStatGraph : public LLView
 {
 public:
-	LLStatGraph(const LLView::Params&);
+	struct ThresholdParams : public LLInitParam::Block<ThresholdParams>
+	{
+		Mandatory<F32>	value;
+		Optional<LLUIColor>	color;
 
-	virtual void draw();
+		ThresholdParams()
+		:	value("value"),
+			color("color", LLColor4::white)
+		{}
+	};
+
+	struct Thresholds : public LLInitParam::Block<Thresholds>
+	{
+		Multiple<ThresholdParams> threshold;
+
+		Thresholds()
+		:	threshold("threshold")
+		{}
+	};
+
+	struct StatParams : public LLInitParam::ChoiceBlock<StatParams>
+	{
+		Alternative<LLTrace::TraceType<LLTrace::CountAccumulator>* >	count_stat_float;
+		Alternative<LLTrace::TraceType<LLTrace::EventAccumulator>* >	event_stat_float;
+		Alternative<LLTrace::TraceType<LLTrace::SampleAccumulator>* >	sample_stat_float;
+	};
+
+	struct Params : public LLInitParam::Block<Params, LLView::Params>
+	{
+		Mandatory<StatParams>	stat;
+		Optional<std::string>	label,
+								units;
+		Optional<S32>			precision;
+		Optional<F32>			min,
+								max;
+		Optional<bool>			per_sec;
+		Optional<F32>			value;
+
+		Optional<Thresholds>	thresholds;
+
+		Params()
+		:	stat("stat"),
+			label("label"),
+			units("units"),
+			precision("precision", 0),
+			min("min", 0.f),
+			max("max", 125.f),
+			per_sec("per_sec", true),
+			value("value", 0.f),
+			thresholds("thresholds")
+		{
+			Thresholds _thresholds;
+			_thresholds.threshold.add(ThresholdParams().value(0.f).color(LLColor4::green))
+								.add(ThresholdParams().value(0.33f).color(LLColor4::yellow))
+								.add(ThresholdParams().value(0.5f).color(LLColor4::red))
+								.add(ThresholdParams().value(0.75f).color(LLColor4::red));
+			thresholds = _thresholds;
+		}
+	};
+	LLStatGraph(const Params&);
 
-	void setLabel(const std::string& label);
-	void setUnits(const std::string& units);
-	void setPrecision(const S32 precision);
-	void setStat(LLStat *statp);
-	void setThreshold(const S32 i, F32 value);
 	void setMin(const F32 min);
 	void setMax(const F32 max);
 
+	virtual void draw();
+
 	/*virtual*/ void setValue(const LLSD& value);
 	
-	LLStat *mStatp;
-	BOOL mPerSec;
 private:
+	LLTrace::TraceType<LLTrace::CountAccumulator>*	mNewStatFloatp;
+
+	BOOL mPerSec;
+
 	F32 mValue;
 
 	F32 mMin;
@@ -62,9 +117,25 @@ private:
 	std::string mUnits;
 	S32 mPrecision; // Num of digits of precision after dot
 
-	S32 mNumThresholds;
-	F32 mThresholds[4];
-	LLColor4 mThresholdColors[4];
+	struct Threshold
+	{
+		Threshold(F32 value, const LLUIColor& color)
+		:	mValue(value),
+			mColor(color)
+		{}
+
+		F32 mValue;
+		LLUIColor mColor;
+		bool operator <(const Threshold& other)
+		{
+			return mValue < other.mValue;
+		}
+	};
+	typedef std::vector<Threshold> threshold_vec_t;
+	threshold_vec_t mThresholds;
+	//S32 mNumThresholds;
+	//F32 mThresholds[4];
+	//LLColor4 mThresholdColors[4];
 };
 
 #endif  // LL_LLSTATGRAPH_H
diff --git a/indra/llui/lltabcontainer.cpp b/indra/llui/lltabcontainer.cpp
index fd98155704..415da0b3d6 100755
--- a/indra/llui/lltabcontainer.cpp
+++ b/indra/llui/lltabcontainer.cpp
@@ -406,7 +406,7 @@ void LLTabContainer::draw()
 		}
 	}
 
-	setScrollPosPixels((S32)lerp((F32)getScrollPosPixels(), (F32)target_pixel_scroll, LLCriticalDamp::getInterpolant(0.08f)));
+	setScrollPosPixels((S32)lerp((F32)getScrollPosPixels(), (F32)target_pixel_scroll, LLSmoothInterpolation::getInterpolant(0.08f)));
 
 	BOOL has_scroll_arrows = !getTabsHidden() && ((mMaxScrollPos > 0) || (mScrollPosPixels > 0));
 	if (!mIsVertical)
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index a45c4ced2e..7243931dbb 100755
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -48,6 +48,8 @@ const F32	CURSOR_FLASH_DELAY = 1.0f;  // in seconds
 const S32	CURSOR_THICKNESS = 2;
 const F32	TRIPLE_CLICK_INTERVAL = 0.3f;	// delay between double and triple click.
 
+LLTrace::MemStatHandle	LLTextSegment::sMemStat("LLTextSegment");
+
 LLTextBase::line_info::line_info(S32 index_start, S32 index_end, LLRect rect, S32 line_num) 
 :	mDocIndexStart(index_start), 
 	mDocIndexEnd(index_end),
@@ -575,7 +577,7 @@ void LLTextBase::drawText()
 		if ( (mSpellCheckStart != start) || (mSpellCheckEnd != end) )
 		{
 			const LLWString& wstrText = getWText(); 
-			mMisspellRanges.clear();
+			memDisclaim(mMisspellRanges).clear();
 
 			segment_set_t::const_iterator seg_it = getSegIterContaining(start);
 			while (mSegments.end() != seg_it)
@@ -651,6 +653,7 @@ void LLTextBase::drawText()
 
 			mSpellCheckStart = start;
 			mSpellCheckEnd = end;
+			memClaim(mMisspellRanges);
 		}
 	}
 
@@ -916,9 +919,11 @@ void LLTextBase::createDefaultSegment()
 	if (mSegments.empty())
 	{
 		LLStyleConstSP sp(new LLStyle(getStyleParams()));
+		memDisclaim(mSegments);
 		LLTextSegmentPtr default_segment = new LLNormalTextSegment( sp, 0, getLength() + 1, *this);
 		mSegments.insert(default_segment);
 		default_segment->linkToDocument(this);
+		memClaim(mSegments);
 	}
 }
 
@@ -929,6 +934,8 @@ void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert)
 		return;
 	}
 
+	memDisclaim(mSegments);
+
 	segment_set_t::iterator cur_seg_iter = getSegIterContaining(segment_to_insert->getStart());
 	S32 reflow_start_index = 0;
 
@@ -1001,6 +1008,7 @@ void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert)
 
 	// layout potentially changed
 	needsReflow(reflow_start_index);
+	memClaim(mSegments);
 }
 
 BOOL LLTextBase::handleMouseDown(S32 x, S32 y, MASK mask)
@@ -1254,13 +1262,13 @@ void LLTextBase::setReadOnlyColor(const LLColor4 &c)
 }
 
 //virtual
-void LLTextBase::handleVisibilityChange( BOOL new_visibility )
+void LLTextBase::onVisibilityChange( BOOL new_visibility )
 {
 	if(!new_visibility && mPopupMenu)
 	{
 		mPopupMenu->hide();
 	}
-	LLUICtrl::handleVisibilityChange(new_visibility);
+	LLUICtrl::onVisibilityChange(new_visibility);
 }
 
 //virtual
@@ -1311,8 +1319,11 @@ void LLTextBase::replaceWithSuggestion(U32 index)
 			removeStringNoUndo(it->first, it->second - it->first);
 
 			// Insert the suggestion in its place
+			memDisclaim(mSuggestionList);
 			LLWString suggestion = utf8str_to_wstring(mSuggestionList[index]);
 			insertStringNoUndo(it->first, utf8str_to_wstring(mSuggestionList[index]));
+			memClaim(mSuggestionList);
+
 			setCursorPos(it->first + (S32)suggestion.length());
 
 			break;
@@ -1374,7 +1385,7 @@ bool LLTextBase::isMisspelledWord(U32 pos) const
 void LLTextBase::onSpellCheckSettingsChange()
 {
 	// Recheck the spelling on every change
-	mMisspellRanges.clear();
+	memDisclaim(mMisspellRanges).clear();
 	mSpellCheckStart = mSpellCheckEnd = -1;
 }
 
@@ -1652,7 +1663,7 @@ LLRect LLTextBase::getTextBoundingRect()
 
 void LLTextBase::clearSegments()
 {
-	mSegments.clear();
+	memDisclaim(mSegments).clear();
 	createDefaultSegment();
 }
 
@@ -3154,7 +3165,9 @@ void LLNormalTextSegment::setToolTip(const std::string& tooltip)
 		llwarns << "LLTextSegment::setToolTip: cannot replace keyword tooltip." << llendl;
 		return;
 	}
+	memDisclaim(mTooltip);
 	mTooltip = tooltip;
+	memClaim(mTooltip);
 }
 
 bool LLNormalTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
diff --git a/indra/llui/lltextbase.h b/indra/llui/lltextbase.h
index 20a73387b5..74dc7f9693 100755
--- a/indra/llui/lltextbase.h
+++ b/indra/llui/lltextbase.h
@@ -51,7 +51,10 @@ class LLUrlMatch;
 /// includes a start/end offset from the start of the string, a
 /// style to render with, an optional tooltip, etc.
 ///
-class LLTextSegment : public LLRefCount, public LLMouseHandler
+class LLTextSegment 
+:	public LLRefCount, 
+	public LLMouseHandler,
+	public LLTrace::MemTrackable<LLTextSegment>
 {
 public:
 	LLTextSegment(S32 start, S32 end) : mStart(start), mEnd(end){};
@@ -92,10 +95,12 @@ public:
 	/*virtual*/ void			localPointToScreen(S32 local_x, S32 local_y, S32* screen_x, S32* screen_y) const;
 	/*virtual*/ BOOL			hasMouseCapture();
 
-	S32							getStart() const 					{ return mStart; }
-	void						setStart(S32 start)					{ mStart = start; }
-	S32							getEnd() const						{ return mEnd; }
-	void						setEnd( S32 end )					{ mEnd = end; }
+	S32						getStart() const 					{ return mStart; }
+	void					setStart(S32 start)					{ mStart = start; }
+	S32						getEnd() const						{ return mEnd; }
+	void					setEnd( S32 end )					{ mEnd = end; }
+
+	static LLTrace::MemStatHandle sMemStat;
 
 protected:
 	S32				mStart;
@@ -325,7 +330,7 @@ public:
 	/*virtual*/ BOOL		acceptsTextInput() const { return !mReadOnly; }
 	/*virtual*/ void		setColor( const LLColor4& c );
 	virtual     void 		setReadOnlyColor(const LLColor4 &c);
-	virtual	    void		handleVisibilityChange( BOOL new_visibility );
+	virtual	    void		onVisibilityChange( BOOL new_visibility );
 
 	/*virtual*/ void		setValue(const LLSD& value );
 	/*virtual*/ LLTextViewModel* getViewModel() const;
@@ -603,7 +608,7 @@ protected:
 	S32							mSelectionStart;
 	S32							mSelectionEnd;
 	LLTimer		                mTripleClickTimer;
-
+	
 	BOOL						mIsSelecting;		// Are we in the middle of a drag-select? 
 
 	// spell checking
diff --git a/indra/llui/lltoggleablemenu.cpp b/indra/llui/lltoggleablemenu.cpp
index 00d52fe10d..ccb92ffbb2 100755
--- a/indra/llui/lltoggleablemenu.cpp
+++ b/indra/llui/lltoggleablemenu.cpp
@@ -52,7 +52,7 @@ boost::signals2::connection LLToggleableMenu::setVisibilityChangeCallback(const
 }
 
 // virtual
-void LLToggleableMenu::handleVisibilityChange (BOOL curVisibilityIn)
+void LLToggleableMenu::onVisibilityChange (BOOL curVisibilityIn)
 {
 	S32 x,y;
 	LLUI::getMousePositionLocal(LLUI::getRootView(), &x, &y);
diff --git a/indra/llui/lltoggleablemenu.h b/indra/llui/lltoggleablemenu.h
index dfe70cbf54..55a6483021 100755
--- a/indra/llui/lltoggleablemenu.h
+++ b/indra/llui/lltoggleablemenu.h
@@ -45,7 +45,7 @@ public:
 
 	boost::signals2::connection setVisibilityChangeCallback( const commit_signal_t::slot_type& cb );
 
-	virtual void handleVisibilityChange (BOOL curVisibilityIn);
+	virtual void onVisibilityChange (BOOL curVisibilityIn);
 
 	virtual bool addChild (LLView* view, S32 tab_group = 0);
 
diff --git a/indra/llui/lltoolbar.cpp b/indra/llui/lltoolbar.cpp
index 3d9f5cbbc2..f683758962 100755
--- a/indra/llui/lltoolbar.cpp
+++ b/indra/llui/lltoolbar.cpp
@@ -42,9 +42,9 @@
 
 namespace LLToolBarEnums
 {
-	LLLayoutStack::ELayoutOrientation getOrientation(SideType sideType)
+	LLView::EOrientation getOrientation(SideType sideType)
 	{
-		LLLayoutStack::ELayoutOrientation orientation = LLLayoutStack::HORIZONTAL;
+		LLView::EOrientation orientation = LLLayoutStack::HORIZONTAL;
 
 		if ((sideType == SIDE_LEFT) || (sideType == SIDE_RIGHT))
 		{
@@ -173,7 +173,7 @@ void LLToolBar::initFromParams(const LLToolBar::Params& p)
 	// Initialize the base object
 	LLUICtrl::initFromParams(p);
 	
-	LLLayoutStack::ELayoutOrientation orientation = getOrientation(p.side);
+	LLView::EOrientation orientation = getOrientation(p.side);
 
 	LLLayoutStack::Params centering_stack_p;
 	centering_stack_p.name = "centering_stack";
@@ -525,7 +525,7 @@ int LLToolBar::getRankFromPosition(S32 x, S32 y)
 	int rank = 0;
 
 	// Convert the toolbar coord into button panel coords
-	LLLayoutStack::ELayoutOrientation orientation = getOrientation(mSideType);
+	LLView::EOrientation orientation = getOrientation(mSideType);
 	S32 button_panel_x = 0;
 	S32 button_panel_y = 0;
 	localPointToOtherView(x, y, &button_panel_x, &button_panel_y, mButtonPanel);
@@ -644,7 +644,7 @@ void LLToolBar::updateLayoutAsNeeded()
 {
 	if (!mNeedsLayout) return;
 
-	LLLayoutStack::ELayoutOrientation orientation = getOrientation(mSideType);
+	LLView::EOrientation orientation = getOrientation(mSideType);
 	
 	// our terminology for orientation-agnostic layout is such that
 	// length refers to a distance in the direction we stack the buttons 
diff --git a/indra/llui/lltoolbar.h b/indra/llui/lltoolbar.h
index 31424a36d4..6936cb37f7 100755
--- a/indra/llui/lltoolbar.h
+++ b/indra/llui/lltoolbar.h
@@ -125,7 +125,7 @@ namespace LLToolBarEnums
 		SIDE_TOP,
 	};
 
-	LLLayoutStack::ELayoutOrientation getOrientation(SideType sideType);
+	LLView::EOrientation getOrientation(SideType sideType);
 }
 
 // NOTE: This needs to occur before Param block declaration for proper compilation.
diff --git a/indra/llui/llui.h b/indra/llui/llui.h
index 0a0e0e164e..4ebfd0fd6e 100755
--- a/indra/llui/llui.h
+++ b/indra/llui/llui.h
@@ -29,9 +29,11 @@
 #define LL_LLUI_H
 
 #include "llrect.h"
+#include "llcoord.h"
 #include "llcontrol.h"
 #include "llcoord.h"
-#include "v2math.h"
+#include "llcontrol.h"
+#include "llglslshader.h"
 #include "llinitparam.h"
 #include "llregistry.h"
 #include "llrender2dutils.h"
@@ -40,8 +42,8 @@
 #include "lluicolortable.h"
 #include "lluiimage.h"
 #include <boost/signals2.hpp>
-#include "lllazyvalue.h"
 #include "llframetimer.h"
+#include "v2math.h"
 #include <limits>
 
 // for initparam specialization
diff --git a/indra/llui/lluictrl.cpp b/indra/llui/lluictrl.cpp
index b9c843e931..08358484ef 100755
--- a/indra/llui/lluictrl.cpp
+++ b/indra/llui/lluictrl.cpp
@@ -118,6 +118,7 @@ LLUICtrl::LLUICtrl(const LLUICtrl::Params& p, const LLViewModelPtr& viewmodel)
 	mDoubleClickSignal(NULL),
 	mTransparencyType(TT_DEFAULT)
 {
+	memClaim(viewmodel.get());
 }
 
 void LLUICtrl::initFromParams(const Params& p)
@@ -940,7 +941,7 @@ boost::signals2::connection LLUICtrl::setCommitCallback( boost::function<void (L
 }
 boost::signals2::connection LLUICtrl::setValidateBeforeCommit( boost::function<bool (const LLSD& data)> cb )
 {
-	if (!mValidateSignal) mValidateSignal = new enable_signal_t();
+	if (!mValidateSignal) mValidateSignal = memClaim(new enable_signal_t());
 	return mValidateSignal->connect(boost::bind(cb, _2));
 }
 
@@ -1003,55 +1004,55 @@ boost::signals2::connection LLUICtrl::setValidateCallback(const EnableCallbackPa
 
 boost::signals2::connection LLUICtrl::setCommitCallback( const commit_signal_t::slot_type& cb ) 
 { 
-	if (!mCommitSignal) mCommitSignal = new commit_signal_t();
+	if (!mCommitSignal) mCommitSignal = memClaim(new commit_signal_t());
 	return mCommitSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setValidateCallback( const enable_signal_t::slot_type& cb ) 
 { 
-	if (!mValidateSignal) mValidateSignal = new enable_signal_t();
+	if (!mValidateSignal) mValidateSignal = memClaim(new enable_signal_t());
 	return mValidateSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setMouseEnterCallback( const commit_signal_t::slot_type& cb ) 
 { 
-	if (!mMouseEnterSignal) mMouseEnterSignal = new commit_signal_t();
+	if (!mMouseEnterSignal) mMouseEnterSignal = memClaim(new commit_signal_t());
 	return mMouseEnterSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setMouseLeaveCallback( const commit_signal_t::slot_type& cb ) 
 { 
-	if (!mMouseLeaveSignal) mMouseLeaveSignal = new commit_signal_t();
+	if (!mMouseLeaveSignal) mMouseLeaveSignal = memClaim(new commit_signal_t());
 	return mMouseLeaveSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setMouseDownCallback( const mouse_signal_t::slot_type& cb ) 
 { 
-	if (!mMouseDownSignal) mMouseDownSignal = new mouse_signal_t();
+	if (!mMouseDownSignal) mMouseDownSignal = memClaim(new mouse_signal_t());
 	return mMouseDownSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setMouseUpCallback( const mouse_signal_t::slot_type& cb ) 
 { 
-	if (!mMouseUpSignal) mMouseUpSignal = new mouse_signal_t();
+	if (!mMouseUpSignal) mMouseUpSignal = memClaim(new mouse_signal_t());
 	return mMouseUpSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setRightMouseDownCallback( const mouse_signal_t::slot_type& cb ) 
 { 
-	if (!mRightMouseDownSignal) mRightMouseDownSignal = new mouse_signal_t();
+	if (!mRightMouseDownSignal) mRightMouseDownSignal = memClaim(new mouse_signal_t());
 	return mRightMouseDownSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setRightMouseUpCallback( const mouse_signal_t::slot_type& cb ) 
 { 
-	if (!mRightMouseUpSignal) mRightMouseUpSignal = new mouse_signal_t();
+	if (!mRightMouseUpSignal) mRightMouseUpSignal = memClaim(new mouse_signal_t());
 	return mRightMouseUpSignal->connect(cb); 
 }
 
 boost::signals2::connection LLUICtrl::setDoubleClickCallback( const mouse_signal_t::slot_type& cb ) 
 { 
-	if (!mDoubleClickSignal) mDoubleClickSignal = new mouse_signal_t();
+	if (!mDoubleClickSignal) mDoubleClickSignal = memClaim(new mouse_signal_t());
 	return mDoubleClickSignal->connect(cb); 
 }
 
diff --git a/indra/llui/lluictrlfactory.h b/indra/llui/lluictrlfactory.h
index 876bb5ef46..f2fe4334ee 100755
--- a/indra/llui/lluictrlfactory.h
+++ b/indra/llui/lluictrlfactory.h
@@ -170,7 +170,7 @@ public:
 			LLXMLNodePtr root_node;
 
 			if (!LLUICtrlFactory::getLayeredXMLNode(filename, root_node))
-			{
+				{							
 				llwarns << "Couldn't parse XUI file: " << instance().getCurFileName() << llendl;
 				goto fail;
 			}
@@ -259,10 +259,8 @@ private:
 			// We always want to output top-left coordinates
 			typename T::Params output_params(params);
 			T::setupParamsForExport(output_params, parent);
-			// Export only the differences between this any default params
-			typename T::Params default_params(getDefaultParams<T>());
 			copyName(node, output_node);
-			parser.writeXUI(output_node, output_params, &default_params);
+			parser.writeXUI(output_node, output_params, LLInitParam::default_parse_rules(), &getDefaultParams<T>());
 		}
 
 		// Apply layout transformations, usually munging rect
diff --git a/indra/llui/lluistring.cpp b/indra/llui/lluistring.cpp
index c4e073ccdb..23fc53ea88 100755
--- a/indra/llui/lluistring.cpp
+++ b/indra/llui/lluistring.cpp
@@ -26,6 +26,8 @@
 
 #include "linden_common.h"
 #include "lluistring.h"
+
+#include "llfasttimer.h"
 #include "llsd.h"
 #include "lltrans.h"
 
diff --git a/indra/llui/llview.cpp b/indra/llui/llview.cpp
index 3613a40e2c..daeb4d7939 100755
--- a/indra/llui/llview.cpp
+++ b/indra/llui/llview.cpp
@@ -30,7 +30,6 @@
 #define LLVIEW_CPP
 #include "llview.h"
 
-#include <cassert>
 #include <sstream>
 #include <boost/tokenizer.hpp>
 #include <boost/foreach.hpp>
@@ -70,6 +69,7 @@ LLView* LLView::sPreviewClickedElement = NULL;
 BOOL	LLView::sDrawPreviewHighlights = FALSE;
 S32		LLView::sLastLeftXML = S32_MIN;
 S32		LLView::sLastBottomXML = S32_MIN;
+LLTrace::MemStatHandle	LLView::sMemStat("LLView");
 std::vector<LLViewDrawContext*> LLViewDrawContext::sDrawContextStack;
 
 LLView::DrilldownFunc LLView::sDrilldown =
@@ -85,6 +85,16 @@ template class LLView* LLView::getChild<class LLView>(
 
 static LLDefaultChildRegistry::Register<LLView> r("view");
 
+namespace LLInitParam
+{
+	void TypeValues<LLView::EOrientation>::declareValues()
+	{
+		declare("horizontal", LLView::HORIZONTAL);
+		declare("vertical", LLView::VERTICAL);	
+	}
+}
+
+
 LLView::Follows::Follows()
 :   string(""),
 	flags("flags", FOLLOWS_LEFT | FOLLOWS_TOP)
@@ -633,21 +643,21 @@ void LLView::setVisible(BOOL visible)
 		{
 			// tell all children of this view that the visibility may have changed
 			dirtyRect();
-			handleVisibilityChange( visible );
+			onVisibilityChange( visible );
 		}
 		updateBoundingRect();
 	}
 }
 
 // virtual
-void LLView::handleVisibilityChange ( BOOL new_visibility )
+void LLView::onVisibilityChange ( BOOL new_visibility )
 {
 	BOOST_FOREACH(LLView* viewp, mChildList)
 	{
 		// only views that are themselves visible will have their overall visibility affected by their ancestors
 		if (viewp->getVisible())
 		{
-			viewp->handleVisibilityChange ( new_visibility );
+			viewp->onVisibilityChange ( new_visibility );
 		}
 	}
 }
diff --git a/indra/llui/llview.h b/indra/llui/llview.h
index 15b85a6418..0568fa889a 100755
--- a/indra/llui/llview.h
+++ b/indra/llui/llview.h
@@ -100,9 +100,13 @@ class LLView
 :	public LLMouseHandler,			// handles mouse events
 	public LLFocusableElement,		// handles keyboard events
 	public LLMortician,				// lazy deletion
-	public LLHandleProvider<LLView>	// passes out weak references to self
+	public LLHandleProvider<LLView>,     // passes out weak references to self
+	public LLTrace::MemTrackable<LLView> // track memory usage
 {
 public:
+
+	enum EOrientation { HORIZONTAL, VERTICAL, ORIENTATION_COUNT };
+
 	struct Follows : public LLInitParam::ChoiceBlock<Follows>
 	{
 		Alternative<std::string>	string;
@@ -303,7 +307,7 @@ public:
 
 	virtual BOOL	setLabelArg( const std::string& key, const LLStringExplicit& text );
 
-	virtual void	handleVisibilityChange ( BOOL new_visibility );
+	virtual void	onVisibilityChange ( BOOL new_visibility );
 
 	void			pushVisible(BOOL visible)	{ mLastVisible = mVisible; setVisible(visible); }
 	void			popVisible()				{ setVisible(mLastVisible); }
@@ -671,7 +675,18 @@ public:
 	static S32 sLastLeftXML;
 	static S32 sLastBottomXML;
 	static BOOL sForceReshape;
+	static LLTrace::MemStatHandle sMemStat;
+};
+
+namespace LLInitParam
+{
+template<>
+struct TypeValues<LLView::EOrientation> : public LLInitParam::TypeValuesHelper<LLView::EOrientation>
+{
+	static void declareValues();
 };
+}
+
 
 class LLCompareByTabOrder
 {
diff --git a/indra/llui/llviewmodel.cpp b/indra/llui/llviewmodel.cpp
index a9f8acc440..901260bec8 100755
--- a/indra/llui/llviewmodel.cpp
+++ b/indra/llui/llviewmodel.cpp
@@ -35,6 +35,8 @@
 // external library headers
 // other Linden headers
 
+LLTrace::MemStatHandle	LLViewModel::sMemStat("LLViewModel");
+
 ///
 LLViewModel::LLViewModel()
  : mDirty(false)
@@ -80,7 +82,10 @@ LLTextViewModel::LLTextViewModel(const LLSD& value)
 void LLTextViewModel::setValue(const LLSD& value)
 {
 	LLViewModel::setValue(value);
+	memDisclaim(mDisplay);
     mDisplay = utf8str_to_wstring(value.asString());
+	memClaim(mDisplay);
+
     // mDisplay and mValue agree
     mUpdateFromDisplay = false;
 }
@@ -91,7 +96,9 @@ void LLTextViewModel::setDisplay(const LLWString& value)
     // and do the utf8str_to_wstring() to get the corresponding mDisplay
     // value. But a text editor might want to edit the display string
     // directly, then convert back to UTF8 on commit.
+	memDisclaim(mDisplay);
     mDisplay = value;
+	memClaim(mDisplay);
     mDirty = true;
     // Don't immediately convert to UTF8 -- do it lazily -- we expect many
     // more setDisplay() calls than getValue() calls. Just flag that it needs
diff --git a/indra/llui/llviewmodel.h b/indra/llui/llviewmodel.h
index ef2e314799..2c016d2560 100755
--- a/indra/llui/llviewmodel.h
+++ b/indra/llui/llviewmodel.h
@@ -39,6 +39,7 @@
 #include "llrefcount.h"
 #include "stdenums.h"
 #include "llstring.h"
+#include "lltrace.h"
 #include <string>
 
 class LLScrollListItem;
@@ -60,7 +61,9 @@ typedef LLPointer<LLListViewModel> LLListViewModelPtr;
  * LLViewModel data. This way, the LLViewModel is quietly deleted when the
  * last referencing widget is destroyed.
  */
-class LLViewModel: public LLRefCount
+class LLViewModel 
+:	public LLRefCount,
+	public LLTrace::MemTrackable<LLViewModel>
 {
 public:
     LLViewModel();
@@ -80,6 +83,8 @@ public:
 	// 
     void setDirty() { mDirty = true; }
 
+	static LLTrace::MemStatHandle sMemStat;
+
 protected:
     LLSD mValue;
     bool mDirty;
diff --git a/indra/llui/llxuiparser.cpp b/indra/llui/llxuiparser.cpp
index 3ad5ad7d42..dc273ec990 100755
--- a/indra/llui/llxuiparser.cpp
+++ b/indra/llui/llxuiparser.cpp
@@ -29,7 +29,7 @@
 #include "llxuiparser.h"
 
 #include "llxmlnode.h"
-
+#include "llfasttimer.h"
 #ifdef LL_STANDALONE
 #include <expat.h>
 #else
@@ -334,6 +334,8 @@ LLXSDWriter::LLXSDWriter()
 	registerInspectFunc<LLSD>(boost::bind(&LLXSDWriter::writeAttribute, this, "xs:string", _1, _2, _3, _4));
 }
 
+LLXSDWriter::~LLXSDWriter() {}
+
 void LLXSDWriter::writeXSD(const std::string& type_name, LLXMLNodePtr node, const LLInitParam::BaseBlock& block, const std::string& xml_namespace)
 {
 	Schema schema(xml_namespace);
@@ -858,11 +860,11 @@ bool LLXUIParser::readAttributes(LLXMLNodePtr nodep, LLInitParam::BaseBlock& blo
 	return any_parsed;
 }
 
-void LLXUIParser::writeXUI(LLXMLNodePtr node, const LLInitParam::BaseBlock &block, const LLInitParam::BaseBlock* diff_block)
+void LLXUIParser::writeXUIImpl(LLXMLNodePtr node, const LLInitParam::BaseBlock &block, const LLInitParam::predicate_rule_t rules, const LLInitParam::BaseBlock* diff_block)
 {
 	mWriteRootNode = node;
 	name_stack_t name_stack = Parser::name_stack_t();
-	block.serializeBlock(*this, name_stack, diff_block);
+	block.serializeBlock(*this, name_stack, rules, diff_block);
 	mOutNodes.clear();
 }
 
diff --git a/indra/llui/llxuiparser.h b/indra/llui/llxuiparser.h
index e48663e5cc..ad2a39cab7 100755
--- a/indra/llui/llxuiparser.h
+++ b/indra/llui/llxuiparser.h
@@ -29,21 +29,15 @@
 
 #include "llinitparam.h"
 #include "llregistry.h"
-#include "llpointer.h"
+#include "llxmlnode.h"
 
 #include <boost/function.hpp>
 #include <iosfwd>
 #include <stack>
 #include <set>
 
-
-
 class LLView;
 
-
-typedef LLPointer<class LLXMLNode> LLXMLNodePtr;
-
-
 // lookup widget type by name
 class LLWidgetTypeRegistry
 :	public LLRegistrySingleton<std::string, const std::type_info*, LLWidgetTypeRegistry>
@@ -59,8 +53,6 @@ class LLChildRegistryRegistry
 : public LLRegistrySingleton<const std::type_info*, widget_registry_t, LLChildRegistryRegistry>
 {};
 
-
-
 class LLXSDWriter : public LLInitParam::Parser
 {
 	LOG_CLASS(LLXSDWriter);
@@ -70,6 +62,7 @@ public:
 	/*virtual*/ std::string getCurrentElementName() { return LLStringUtil::null; }
 
 	LLXSDWriter();
+	~LLXSDWriter();
 
 protected:
 	void writeAttribute(const std::string& type, const Parser::name_stack_t&, S32 min_count, S32 max_count, const std::vector<std::string>* possible_values);
@@ -109,9 +102,26 @@ public:
 	/*virtual*/ void parserError(const std::string& message);
 
 	void readXUI(LLXMLNodePtr node, LLInitParam::BaseBlock& block, const std::string& filename = LLStringUtil::null, bool silent=false);
-	void writeXUI(LLXMLNodePtr node, const LLInitParam::BaseBlock& block, const LLInitParam::BaseBlock* diff_block = NULL);
+	template<typename BLOCK>
+	void writeXUI(LLXMLNodePtr node, 
+				const BLOCK& block, 
+				const LLInitParam::predicate_rule_t rules = LLInitParam::default_parse_rules(),
+				const LLInitParam::BaseBlock* diff_block = NULL)
+	{
+		if (!diff_block 
+			&& !rules.isAmbivalent(LLInitParam::HAS_DEFAULT_VALUE))
+		{
+			diff_block = &LLInitParam::defaultValue<BLOCK>();
+		}
+		writeXUIImpl(node, block, rules, diff_block);
+	}
 
 private:
+	LLXUIParser(const LLXUIParser& other); // no-copy
+	void writeXUIImpl(LLXMLNodePtr node, 
+		const LLInitParam::BaseBlock& block, 
+		const LLInitParam::predicate_rule_t rules, 
+		const LLInitParam::BaseBlock* diff_block);
 	bool readXUIImpl(LLXMLNodePtr node, LLInitParam::BaseBlock& block);
 	bool readAttributes(LLXMLNodePtr nodep, LLInitParam::BaseBlock& block);