Backed out changeset c3d41f18ce2b

back-out the back-out for this branch.  yay.

42 files changed, 620 insertions, 402 deletions

diff --git a/indra/llui/llaccordionctrl.h b/indra/llui/llaccordionctrl.h
index e2de4b9d3b..1fe64c472e 100644
--- a/indra/llui/llaccordionctrl.h
+++ b/indra/llui/llaccordionctrl.h
@@ -133,7 +133,7 @@ public:
 	 */
 	const LLAccordionCtrlTab* getExpandedTab() const;
 
-	const LLAccordionCtrlTab* getSelectedTab() const { return mSelectedTab; }
+	LLAccordionCtrlTab* getSelectedTab() const { return mSelectedTab; }
 
 	bool getFitParent() const {return mFitParent;}
 
diff --git a/indra/llui/llaccordionctrltab.cpp b/indra/llui/llaccordionctrltab.cpp
index 4e0537f592..b7da5f4a1b 100644
--- a/indra/llui/llaccordionctrltab.cpp
+++ b/indra/llui/llaccordionctrltab.cpp
@@ -353,6 +353,7 @@ LLAccordionCtrlTab::LLAccordionCtrlTab(const LLAccordionCtrlTab::Params&p)
 	,mPaddingBottom(p.padding_bottom)
 	,mCanOpenClose(true)
 	,mFitPanel(p.fit_panel)
+	,mSelectionEnabled(p.selection_enabled)
 	,mContainerPanel(NULL)
 	,mScrollbar(NULL)
 {
@@ -824,7 +825,7 @@ void LLAccordionCtrlTab::showAndFocusHeader()
 {
 	LLAccordionCtrlTabHeader* header = getChild<LLAccordionCtrlTabHeader>(DD_HEADER_NAME);	
 	header->setFocus(true);
-	header->setSelected(true);
+	header->setSelected(mSelectionEnabled);
 
 	LLRect screen_rc;
 	LLRect selected_rc = header->getRect();
diff --git a/indra/llui/llaccordionctrltab.h b/indra/llui/llaccordionctrltab.h
index 8ae91ad651..d6ac8cbc8f 100644
--- a/indra/llui/llaccordionctrltab.h
+++ b/indra/llui/llaccordionctrltab.h
@@ -236,6 +236,8 @@ private:
 	bool mStoredOpenCloseState;
 	bool mWasStateStored;
 
+	bool mSelectionEnabled;
+
 	LLScrollbar*	mScrollbar;
 	LLView*			mContainerPanel;
 
diff --git a/indra/llui/llbutton.cpp b/indra/llui/llbutton.cpp
index ac5651e4b6..f0f34ebd4f 100644
--- a/indra/llui/llbutton.cpp
+++ b/indra/llui/llbutton.cpp
@@ -114,6 +114,7 @@ LLButton::LLButton(const LLButton::Params& p)
 	mFlashing( FALSE ),
 	mCurGlowStrength(0.f),
 	mNeedsHighlight(FALSE),
+	mMouseOver(false),
 	mUnselectedLabel(p.label()),
 	mSelectedLabel(p.label_selected()),
 	mGLFont(p.font),
@@ -498,7 +499,11 @@ void LLButton::onMouseEnter(S32 x, S32 y, MASK mask)
 	LLUICtrl::onMouseEnter(x, y, mask);
 
 	if (isInEnabledChain())
+	{
 		mNeedsHighlight = TRUE;
+	}
+
+	mMouseOver = true;
 }
 
 void LLButton::onMouseLeave(S32 x, S32 y, MASK mask)
@@ -506,6 +511,7 @@ void LLButton::onMouseLeave(S32 x, S32 y, MASK mask)
 	LLUICtrl::onMouseLeave(x, y, mask);
 
 	mNeedsHighlight = FALSE;
+	mMouseOver = true;
 }
 
 void LLButton::setHighlight(bool b)
@@ -559,14 +565,10 @@ void LLButton::draw()
 	}
 
 	// Unselected image assignments
-	S32 local_mouse_x;
-	S32 local_mouse_y;
-	LLUI::getMousePositionLocal(this, &local_mouse_x, &local_mouse_y);
-
 	bool enabled = isInEnabledChain();
 
 	bool pressed = pressed_by_keyboard 
-					|| (hasMouseCapture() && pointInView(local_mouse_x, local_mouse_y))
+					|| (hasMouseCapture() && mMouseOver)
 					|| mForcePressedState;
 	bool selected = getToggleState();
 	
diff --git a/indra/llui/llbutton.h b/indra/llui/llbutton.h
index 2d5fefa78c..d87ceb7c42 100644
--- a/indra/llui/llbutton.h
+++ b/indra/llui/llbutton.h
@@ -350,6 +350,7 @@ private:
 	BOOL						mCommitOnReturn;
 	BOOL						mFadeWhenDisabled;
 	bool						mForcePressedState;
+	bool						mMouseOver;
 
 	LLFrameTimer				mFlashingTimer;
 };
diff --git a/indra/llui/llcallbackmap.h b/indra/llui/llcallbackmap.h
index eb8b423b29..0a10877c09 100644
--- a/indra/llui/llcallbackmap.h
+++ b/indra/llui/llcallbackmap.h
@@ -29,12 +29,13 @@
 
 #include <map>
 #include <string>
+#include <boost/function.hpp>
 
 class LLCallbackMap
 {
 public:
 	// callback definition.
-	typedef void* (*callback_t)(void* data);
+	typedef boost::function<void* (void* data)> callback_t;
 	
 	typedef std::map<std::string, LLCallbackMap> map_t;
 	typedef map_t::iterator map_iter_t;
diff --git a/indra/llui/lldockablefloater.cpp b/indra/llui/lldockablefloater.cpp
index bf55239f1b..ca2dc644a4 100644
--- a/indra/llui/lldockablefloater.cpp
+++ b/indra/llui/lldockablefloater.cpp
@@ -43,12 +43,13 @@ void LLDockableFloater::init(LLDockableFloater* thiz)
 	thiz->setCanClose(TRUE);
 	thiz->setCanDock(true);
 	thiz->setCanMinimize(TRUE);
+	thiz->setOverlapsScreenChannel(false);
+	thiz->mForceDocking = false;
 }
 
 LLDockableFloater::LLDockableFloater(LLDockControl* dockControl,
 		const LLSD& key, const Params& params) :
 	LLFloater(key, params), mDockControl(dockControl), mUniqueDocking(true)
-	, mOverlapsScreenChannel(false)
 {
 	init(this);
 	mUseTongue = true;
@@ -75,6 +76,12 @@ LLDockableFloater::~LLDockableFloater()
 
 BOOL LLDockableFloater::postBuild()
 {
+	// Remember we should force docking when the floater is opened for the first time
+	if (mIsDockedStateForcedCallback != NULL && mIsDockedStateForcedCallback())
+	{
+		mForceDocking = true;
+	}
+
 	mDockTongue = LLUI::getUIImage("windows/Flyout_Pointer.png");
 	LLFloater::setDocked(true);
 	return LLView::postBuild();
@@ -128,6 +135,14 @@ void LLDockableFloater::resetInstance()
 
 void LLDockableFloater::setVisible(BOOL visible)
 {
+	// Force docking if requested
+	if (visible && mForceDocking)
+	{
+		setCanDock(true);
+		setDocked(true);
+		mForceDocking = false;
+	}
+
 	if(visible && isDocked())
 	{
 		resetInstance();
diff --git a/indra/llui/lldockablefloater.h b/indra/llui/lldockablefloater.h
index 86dcf670b1..8deb6c1159 100644
--- a/indra/llui/lldockablefloater.h
+++ b/indra/llui/lldockablefloater.h
@@ -124,6 +124,10 @@ protected:
 	void setDockControl(LLDockControl* dockControl);
 	const LLUIImagePtr& getDockTongue();
 
+	// Checks if docking should be forced.
+	// It may be useful e.g. if floater created in mouselook mode (see EXT-5609)
+	boost::function<BOOL ()> mIsDockedStateForcedCallback;
+
 private:
 	std::auto_ptr<LLDockControl> mDockControl;
 	LLUIImagePtr mDockTongue;
@@ -137,6 +141,9 @@ private:
 	bool mUseTongue;
 
 	bool mOverlapsScreenChannel;
+
+	// Force docking when the floater is being shown for the first time.
+	bool mForceDocking;
 };
 
 #endif /* LL_DOCKABLEFLOATER_H */
diff --git a/indra/llui/lldraghandle.cpp b/indra/llui/lldraghandle.cpp
index 9ad7c01bd5..42e6c3c786 100644
--- a/indra/llui/lldraghandle.cpp
+++ b/indra/llui/lldraghandle.cpp
@@ -107,7 +107,7 @@ void LLDragHandleTop::setTitle(const std::string& title)
 		params.follows.flags(FOLLOWS_TOP | FOLLOWS_LEFT | FOLLOWS_RIGHT);
 		params.font_shadow(LLFontGL::DROP_SHADOW_SOFT);
 		params.use_ellipses = true;
-		params.allow_html = false; //cancel URL replacement in floater title
+		params.parse_urls = false; //cancel URL replacement in floater title
 		mTitleBox = LLUICtrlFactory::create<LLTextBox> (params);
 		addChild( mTitleBox );
 	}
diff --git a/indra/llui/llflatlistview.cpp b/indra/llui/llflatlistview.cpp
index b28399a36b..c57c02f4b1 100644
--- a/indra/llui/llflatlistview.cpp
+++ b/indra/llui/llflatlistview.cpp
@@ -607,8 +607,14 @@ void LLFlatListView::onItemMouseClick(item_pair_t* item_pair, MASK mask)
 		return;
 	}
 
-	if (!(mask & MASK_CONTROL) || !mMultipleSelection) resetSelection();
+	//no need to do additional commit on selection reset
+	if (!(mask & MASK_CONTROL) || !mMultipleSelection) resetSelection(true);
+
+	//only CTRL usage allows to deselect an item, usual clicking on an item cannot deselect it
+	if (mask & MASK_CONTROL)
 	selectItemPair(item_pair, select_item);
+	else
+		selectItemPair(item_pair, true);
 }
 
 void LLFlatListView::onItemRightMouseClick(item_pair_t* item_pair, MASK mask)
@@ -660,6 +666,14 @@ BOOL LLFlatListView::handleKeyHere(KEY key, MASK mask)
 			}
 			break;
 		}
+		case KEY_ESCAPE:
+		{
+			if (mask == MASK_NONE)
+			{
+				setFocus(FALSE); // pass focus to the game area (EXT-8357)
+			}
+			break;
+		}
 		default:
 			break;
 	}
@@ -775,6 +789,18 @@ bool LLFlatListView::selectItemPair(item_pair_t* item_pair, bool select)
 	return true;
 }
 
+void LLFlatListView::scrollToShowFirstSelectedItem()
+{
+	if (!mSelectedItemPairs.size())	return;
+
+	LLRect selected_rc = mSelectedItemPairs.front()->first->getRect();
+
+	if (selected_rc.isValid())
+	{
+		scrollToShowRect(selected_rc);
+	}
+}
+
 LLRect LLFlatListView::getLastSelectedItemRect()
 {
 	if (!mSelectedItemPairs.size())
diff --git a/indra/llui/llflatlistview.h b/indra/llui/llflatlistview.h
index afd0176d98..0515853698 100644
--- a/indra/llui/llflatlistview.h
+++ b/indra/llui/llflatlistview.h
@@ -292,6 +292,7 @@ public:
 
 	bool updateValue(const LLSD& old_value, const LLSD& new_value);
 
+	void scrollToShowFirstSelectedItem();
 
 	void selectFirstItem	();
 	void selectLastItem		();
diff --git a/indra/llui/llfloater.cpp b/indra/llui/llfloater.cpp
index 3cfb2c5d4a..e1203971ea 100644
--- a/indra/llui/llfloater.cpp
+++ b/indra/llui/llfloater.cpp
@@ -2279,6 +2279,7 @@ void LLFloaterView::getMinimizePosition(S32 *left, S32 *bottom)
 	S32 floater_header_size = default_params.header_height;
 	static LLUICachedControl<S32> minimized_width ("UIMinimizedWidth", 0);
 	LLRect snap_rect_local = getLocalSnapRect();
+	snap_rect_local.mTop += mMinimizePositionVOffset;
 	for(S32 col = snap_rect_local.mLeft;
 		col < snap_rect_local.getWidth() - minimized_width;
 		col += minimized_width)
@@ -2376,6 +2377,19 @@ BOOL LLFloaterView::allChildrenClosed()
 	return true;
 }
 
+void LLFloaterView::shiftFloaters(S32 x_offset, S32 y_offset)
+{
+	for (child_list_const_iter_t it = getChildList()->begin(); it != getChildList()->end(); ++it)
+	{
+		LLFloater* floaterp = dynamic_cast<LLFloater*>(*it);
+
+		if (floaterp && floaterp->isMinimized())
+		{
+			floaterp->translate(x_offset, y_offset);
+		}
+	}
+}
+
 void LLFloaterView::refresh()
 {
 	// Constrain children to be entirely on the screen
diff --git a/indra/llui/llfloater.h b/indra/llui/llfloater.h
index 2deae29607..5e482cbac3 100644
--- a/indra/llui/llfloater.h
+++ b/indra/llui/llfloater.h
@@ -449,6 +449,7 @@ public:
 	// Given a child of gFloaterView, make sure this view can fit entirely onscreen.
 	void			adjustToFitScreen(LLFloater* floater, BOOL allow_partial_outside);
 
+	void			setMinimizePositionVerticalOffset(S32 offset) { mMinimizePositionVOffset = offset; }
 	void			getMinimizePosition( S32 *left, S32 *bottom);
 	void			restoreAll();		// un-minimize all floaters
 	typedef std::set<LLView*> skip_list_t;
@@ -465,6 +466,7 @@ public:
 	// attempt to close all floaters
 	void			closeAllChildren(bool app_quitting);
 	BOOL			allChildrenClosed();
+	void			shiftFloaters(S32 x_offset, S32 y_offset);
 
 	LLFloater* getFrontmost() const;
 	LLFloater* getBackmost() const;
@@ -484,6 +486,7 @@ private:
 	BOOL			mFocusCycleMode;
 	S32				mSnapOffsetBottom;
 	S32				mSnapOffsetRight;
+	S32				mMinimizePositionVOffset;
 };
 
 //
diff --git a/indra/llui/lllocalcliprect.cpp b/indra/llui/lllocalcliprect.cpp
index 1a311bb13a..6841301219 100644
--- a/indra/llui/lllocalcliprect.cpp
+++ b/indra/llui/lllocalcliprect.cpp
@@ -27,33 +27,8 @@
 #include "lllocalcliprect.h"
 
 #include "llfontgl.h"
-#include "llgl.h"
 #include "llui.h"
 
-#include <stack>
-
-//---------------------------------------------------------------------------
-// LLScreenClipRect
-// implementation class in screen space
-//---------------------------------------------------------------------------
-class LLScreenClipRect
-{
-public:
-	LLScreenClipRect(const LLRect& rect, BOOL enabled = TRUE);
-	virtual ~LLScreenClipRect();
-
-private:
-	static void pushClipRect(const LLRect& rect);
-	static void popClipRect();
-	static void updateScissorRegion();
-
-private:
-	LLGLState		mScissorState;
-	BOOL			mEnabled;
-
-	static std::stack<LLRect> sClipRectStack;
-};
-
 /*static*/ std::stack<LLRect> LLScreenClipRect::sClipRectStack;
 
 
@@ -64,9 +39,9 @@ LLScreenClipRect::LLScreenClipRect(const LLRect& rect, BOOL enabled)
 	if (mEnabled)
 	{
 		pushClipRect(rect);
+		mScissorState.setEnabled(!sClipRectStack.empty());
+		updateScissorRegion();
 	}
-	mScissorState.setEnabled(!sClipRectStack.empty());
-	updateScissorRegion();
 }
 
 LLScreenClipRect::~LLScreenClipRect()
@@ -74,8 +49,8 @@ LLScreenClipRect::~LLScreenClipRect()
 	if (mEnabled)
 	{
 		popClipRect();
+		updateScissorRegion();
 	}
-	updateScissorRegion();
 }
 
 //static 
@@ -125,16 +100,11 @@ void LLScreenClipRect::updateScissorRegion()
 // LLLocalClipRect
 //---------------------------------------------------------------------------
 LLLocalClipRect::LLLocalClipRect(const LLRect& rect, BOOL enabled /* = TRUE */)
-{
-	LLRect screen(rect.mLeft + LLFontGL::sCurOrigin.mX, 
-		rect.mTop + LLFontGL::sCurOrigin.mY, 
-		rect.mRight + LLFontGL::sCurOrigin.mX, 
-		rect.mBottom + LLFontGL::sCurOrigin.mY);
-	mScreenClipRect = new LLScreenClipRect(screen, enabled);
-}
+:	LLScreenClipRect(LLRect(rect.mLeft + LLFontGL::sCurOrigin.mX, 
+					rect.mTop + LLFontGL::sCurOrigin.mY, 
+					rect.mRight + LLFontGL::sCurOrigin.mX, 
+					rect.mBottom + LLFontGL::sCurOrigin.mY), enabled)
+{}
 
 LLLocalClipRect::~LLLocalClipRect()
-{
-	delete mScreenClipRect;
-	mScreenClipRect = NULL;
-}
+{}
diff --git a/indra/llui/lllocalcliprect.h b/indra/llui/lllocalcliprect.h
index 0097958916..eeeaf2adb6 100644
--- a/indra/llui/lllocalcliprect.h
+++ b/indra/llui/lllocalcliprect.h
@@ -25,7 +25,9 @@
 #ifndef LLLOCALCLIPRECT_H
 #define LLLOCALCLIPRECT_H
 
+#include "llgl.h"
 #include "llrect.h"		// can't forward declare, it's templated
+#include <stack>
 
 // Clip rendering to a specific rectangle using GL scissor
 // Just create one of these on the stack:
@@ -33,15 +35,29 @@
 //     LLLocalClipRect(rect);
 //     draw();
 // }
-class LLLocalClipRect
+class LLScreenClipRect
 {
 public:
-	LLLocalClipRect(const LLRect& rect, BOOL enabled = TRUE);
-	~LLLocalClipRect();
+	LLScreenClipRect(const LLRect& rect, BOOL enabled = TRUE);
+	virtual ~LLScreenClipRect();
+
+private:
+	static void pushClipRect(const LLRect& rect);
+	static void popClipRect();
+	static void updateScissorRegion();
 
 private:
-	// implementation class
-	class LLScreenClipRect* mScreenClipRect;
+	LLGLState		mScissorState;
+	BOOL			mEnabled;
+
+	static std::stack<LLRect> sClipRectStack;
+};
+
+class LLLocalClipRect : public LLScreenClipRect
+{
+public:
+	LLLocalClipRect(const LLRect& rect, BOOL enabled = TRUE);
+	~LLLocalClipRect();
 };
 
 #endif
diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index c533610381..3e652ea960 100644
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -52,6 +52,7 @@
 #include "llbutton.h"
 #include "llfontgl.h"
 #include "llresmgr.h"
+#include "lltrans.h"
 #include "llui.h"
 
 #include "llstl.h"
@@ -2266,8 +2267,9 @@ void LLMenuGL::createSpilloverBranch()
 		// technically, you can't tear off spillover menus, but we're passing the handle
 		// along just to be safe
 		LLMenuGL::Params p;
+		std::string label = LLTrans::getString("More");
 		p.name("More");
-		p.label("More"); // *TODO: Translate
+		p.label(label);
 		p.bg_color(mBackgroundColor);
 		p.bg_visible(true);
 		p.can_tear_off(false);
@@ -2276,7 +2278,7 @@ void LLMenuGL::createSpilloverBranch()
 
 		LLMenuItemBranchGL::Params branch_params;
 		branch_params.name = "More";
-		branch_params.label = "More"; // *TODO: Translate
+		branch_params.label = label;
 		branch_params.branch = mSpilloverMenu;
 		branch_params.font.style = "italic";
 
diff --git a/indra/llui/llpanel.cpp b/indra/llui/llpanel.cpp
index 6fe36bbc0c..b2e08c48c5 100644
--- a/indra/llui/llpanel.cpp
+++ b/indra/llui/llpanel.cpp
@@ -655,7 +655,7 @@ void LLPanel::childSetEnabled(const std::string& id, bool enabled)
 
 void LLPanel::childSetTentative(const std::string& id, bool tentative)
 {
-	LLView* child = findChild<LLView>(id);
+	LLUICtrl* child = findChild<LLUICtrl>(id);
 	if (child)
 	{
 		child->setTentative(tentative);
@@ -854,13 +854,16 @@ LLPanel *LLPanel::childGetVisibleTab(const std::string& id) const
 	return NULL;
 }
 
-static LLPanel *childGetVisibleTabWithHelp(LLView *parent)
+LLPanel* LLPanel::childGetVisibleTabWithHelp()
 {
 	LLView *child;
 
-	// look through immediate children first for an active tab with help
-	for (child = parent->getFirstChild(); child; child = parent->findNextSibling(child))
+	bfs_tree_iterator_t it = beginTreeBFS();
+	// skip ourselves
+	++it;
+	for (; it != endTreeBFS(); ++it)
 	{
+		child = *it;
 		LLPanel *curTabPanel = NULL;
 
 		// do we have a tab container?
@@ -884,36 +887,21 @@ static LLPanel *childGetVisibleTabWithHelp(LLView *parent)
 		}
 	}
 
-	// then try a bit harder and recurse through all children
-	for (child = parent->getFirstChild(); child; child = parent->findNextSibling(child))
-	{
-		if (child->getVisible())
-		{
-			LLPanel* tab = ::childGetVisibleTabWithHelp(child);
-			if (tab)
-			{
-				return tab;
-			}
-		}
-	}
-
 	// couldn't find any active tabs with a help topic string
 	return NULL;
 }
 
-LLPanel *LLPanel::childGetVisibleTabWithHelp()
-{
-	// find a visible tab with a help topic (to determine help context)
-	return ::childGetVisibleTabWithHelp(this);
-}
 
-static LLPanel *childGetVisiblePanelWithHelp(LLView *parent)
+LLPanel *LLPanel::childGetVisiblePanelWithHelp()
 {
 	LLView *child;
 
-	// look through immediate children first for an active panel with help
-	for (child = parent->getFirstChild(); child; child = parent->findNextSibling(child))
+	bfs_tree_iterator_t it = beginTreeBFS();
+	// skip ourselves
+	++it;
+	for (; it != endTreeBFS(); ++it)
 	{
+		child = *it;
 		// do we have a panel with a help topic?
 		LLPanel *panel = dynamic_cast<LLPanel *>(child);
 		if (panel && panel->getVisible() && !panel->getHelpTopic().empty())
@@ -922,39 +910,19 @@ static LLPanel *childGetVisiblePanelWithHelp(LLView *parent)
 		}
 	}
 
-	// then try a bit harder and recurse through all children
-	for (child = parent->getFirstChild(); child; child = parent->findNextSibling(child))
-	{
-		if (child->getVisible())
-		{
-			LLPanel* panel = ::childGetVisiblePanelWithHelp(child);
-			if (panel)
-			{
-				return panel;
-			}
-		}
-	}
-
 	// couldn't find any active panels with a help topic string
 	return NULL;
 }
 
-LLPanel *LLPanel::childGetVisiblePanelWithHelp()
+void LLPanel::childSetAction(const std::string& id, const commit_signal_t::slot_type& function)
 {
-	// find a visible tab with a help topic (to determine help context)
-	return ::childGetVisiblePanelWithHelp(this);
-}
-
-void LLPanel::childSetPrevalidate(const std::string& id, bool (*func)(const LLWString &) )
-{
-	LLLineEditor* child = findChild<LLLineEditor>(id);
-	if (child)
+	LLButton* button = findChild<LLButton>(id);
+	if (button)
 	{
-		child->setPrevalidate(func);
+		button->setClickedCallback(function);
 	}
 }
 
-
 void LLPanel::childSetAction(const std::string& id, boost::function<void(void*)> function, void* value)
 {
 	LLButton* button = findChild<LLButton>(id);
diff --git a/indra/llui/llpanel.h b/indra/llui/llpanel.h
index ca8bb77b77..a7224648c1 100644
--- a/indra/llui/llpanel.h
+++ b/indra/llui/llpanel.h
@@ -164,6 +164,7 @@ public:
 	std::string getString(const std::string& name) const;
 
 	// ** Wrappers for setting child properties by name ** -TomY
+	// WARNING: These are deprecated, please use getChild<T>("name")->doStuff() idiom instead
 
 	// LLView
 	void childSetVisible(const std::string& name, bool visible);
@@ -227,7 +228,8 @@ public:
 	void childSetPrevalidate(const std::string& id, bool (*func)(const LLWString &) );
 
 	// LLButton
-	void childSetAction(const std::string& id, boost::function<void(void*)> function, void* value = NULL);
+	void childSetAction(const std::string& id, boost::function<void(void*)> function, void* value);
+	void childSetAction(const std::string& id, const commit_signal_t::slot_type& function);
 
 	// LLTextBox
 	void childSetActionTextbox(const std::string& id, boost::function<void(void*)> function, void* value = NULL);
diff --git a/indra/llui/llscrolllistctrl.cpp b/indra/llui/llscrolllistctrl.cpp
index 3f4ab0fbc8..84e438cfb7 100644
--- a/indra/llui/llscrolllistctrl.cpp
+++ b/indra/llui/llscrolllistctrl.cpp
@@ -129,6 +129,7 @@ LLScrollListCtrl::Params::Params()
 	search_column("search_column", 0),
 	sort_column("sort_column", -1),
 	sort_ascending("sort_ascending", true),
+	mouse_wheel_opaque("mouse_wheel_opaque", false),
 	commit_on_keyboard_movement("commit_on_keyboard_movement", true),
 	heading_height("heading_height"),
 	page_lines("page_lines", 0),
@@ -157,6 +158,7 @@ LLScrollListCtrl::LLScrollListCtrl(const LLScrollListCtrl::Params& p)
 :	LLUICtrl(p),
 	mLineHeight(0),
 	mScrollLines(0),
+	mMouseWheelOpaque(p.mouse_wheel_opaque),
 	mPageLines(p.page_lines),
 	mMaxSelectable(0),
 	mAllowKeyboardMovement(TRUE),
@@ -1530,6 +1532,12 @@ BOOL LLScrollListCtrl::handleScrollWheel(S32 x, S32 y, S32 clicks)
 	BOOL handled = FALSE;
 	// Pretend the mouse is over the scrollbar
 	handled = mScrollbar->handleScrollWheel( 0, 0, clicks );
+
+	if (mMouseWheelOpaque)
+	{
+		return TRUE;
+	}
+
 	return handled;
 }
 
diff --git a/indra/llui/llscrolllistctrl.h b/indra/llui/llscrolllistctrl.h
index 30618866af..8a2f893ba2 100644
--- a/indra/llui/llscrolllistctrl.h
+++ b/indra/llui/llscrolllistctrl.h
@@ -96,7 +96,8 @@ public:
 	{
 		// behavioral flags
 		Optional<bool>	multi_select,
-						commit_on_keyboard_movement;
+						commit_on_keyboard_movement,
+						mouse_wheel_opaque;
 
 		// display flags
 		Optional<bool>	has_border,
@@ -443,6 +444,7 @@ private:
 	BOOL			mCommitOnSelectionChange;
 	BOOL			mSelectionChanged;
 	BOOL			mNeedsScroll;
+	BOOL			mMouseWheelOpaque;
 	BOOL			mCanSelect;
 	const BOOL		mDisplayColumnHeaders;
 	BOOL			mColumnsDirty;
diff --git a/indra/llui/llsliderctrl.cpp b/indra/llui/llsliderctrl.cpp
index 904c458e85..d760178e35 100644
--- a/indra/llui/llsliderctrl.cpp
+++ b/indra/llui/llsliderctrl.cpp
@@ -229,6 +229,10 @@ void LLSliderCtrl::updateText()
 		std::string text = llformat(format.c_str(), displayed_value);
 		if( mEditor )
 		{
+			// Setting editor text here to "" before using actual text is here because if text which
+			// is set is the same as the one which is actually typed into lineeditor, LLLineEditor::setText()
+			// will exit at it's beginning, so text for revert on escape won't be saved. (EXT-8536)
+			mEditor->setText( LLStringUtil::null );
 			mEditor->setText( text );
 		}
 		else
diff --git a/indra/llui/llstyle.cpp b/indra/llui/llstyle.cpp
index 93314d7bc0..5e09cee78b 100644
--- a/indra/llui/llstyle.cpp
+++ b/indra/llui/llstyle.cpp
@@ -36,6 +36,8 @@ LLStyle::Params::Params()
 :	visible("visible", true),
 	drop_shadow("drop_shadow", LLFontGL::NO_SHADOW),
 	color("color", LLColor4::black),
+	readonly_color("readonly_color", LLColor4::black),
+	selected_color("selected_color", LLColor4::black),
 	font("font", LLFontGL::getFontMonospace()),
 	image("image"),
 	link_href("href")
@@ -43,12 +45,10 @@ LLStyle::Params::Params()
 
 
 LLStyle::LLStyle(const LLStyle::Params& p)
-:	mItalic(FALSE),
-	mBold(FALSE),
-	mUnderline(FALSE),
-	mVisible(p.visible),
-	mColor(p.color()),
-	mReadOnlyColor(p.readonly_color()),
+:	mVisible(p.visible),
+	mColor(p.color),
+	mReadOnlyColor(p.readonly_color),
+	mSelectedColor(p.selected_color),
 	mFont(p.font()),
 	mLink(p.link_href),
 	mDropShadow(p.drop_shadow),
diff --git a/indra/llui/llstyle.h b/indra/llui/llstyle.h
index bfd0d72e85..66cd639936 100644
--- a/indra/llui/llstyle.h
+++ b/indra/llui/llstyle.h
@@ -41,7 +41,8 @@ public:
 		Optional<bool>					visible;
 		Optional<LLFontGL::ShadowType>	drop_shadow;
 		Optional<LLUIColor>				color,
-										readonly_color;
+										readonly_color,
+										selected_color;
 		Optional<const LLFontGL*>		font;
 		Optional<LLUIImage*>			image;
 		Optional<std::string>			link_href;
@@ -49,11 +50,14 @@ public:
 	};
 	LLStyle(const Params& p = Params());
 public:
-	const LLColor4& getColor() const { return mColor; }
-	void setColor(const LLColor4 &color) { mColor = color; }
+	const LLUIColor& getColor() const { return mColor; }
+	void setColor(const LLUIColor &color) { mColor = color; }
 
-	const LLColor4& getReadOnlyColor() const { return mReadOnlyColor; }
-	void setReadOnlyColor(const LLColor4& color) { mReadOnlyColor = color; }
+	const LLUIColor& getReadOnlyColor() const { return mReadOnlyColor; }
+	void setReadOnlyColor(const LLUIColor& color) { mReadOnlyColor = color; }
+
+	const LLUIColor& getSelectedColor() const { return mSelectedColor; }
+	void setSelectedColor(const LLUIColor& color) { mSelectedColor = color; }
 
 	BOOL isVisible() const;
 	void setVisible(BOOL is_visible);
@@ -73,41 +77,36 @@ public:
 
 	BOOL isImage() const { return mImagep.notNull(); }
 
-	// inlined here to make it easier to compare to member data below. -MG
 	bool operator==(const LLStyle &rhs) const
 	{
 		return 
 			mVisible == rhs.mVisible
 			&& mColor == rhs.mColor
 			&& mReadOnlyColor == rhs.mReadOnlyColor
+			&& mSelectedColor == rhs.mSelectedColor
 			&& mFont == rhs.mFont
 			&& mLink == rhs.mLink
 			&& mImagep == rhs.mImagep
-			&& mItalic == rhs.mItalic
-			&& mBold == rhs.mBold
-			&& mUnderline == rhs.mUnderline
 			&& mDropShadow == rhs.mDropShadow;
 	}
 
 	bool operator!=(const LLStyle& rhs) const { return !(*this == rhs); }
 
 public:	
-	BOOL        mItalic;
-	BOOL        mBold;
-	BOOL        mUnderline;
 	LLFontGL::ShadowType		mDropShadow;
 
 protected:
 	~LLStyle() { }
 
 private:
-	BOOL		mVisible;
-	LLUIColor	mColor;
-	LLUIColor   mReadOnlyColor;
-	std::string	mFontName;
-	const LLFontGL*   mFont;		// cached for performance
-	std::string	mLink;
-	LLUIImagePtr mImagep;
+	BOOL				mVisible;
+	LLUIColor			mColor;
+	LLUIColor   		mReadOnlyColor;
+	LLUIColor			mSelectedColor;
+	std::string			mFontName;
+	const LLFontGL*		mFont;
+	std::string			mLink;
+	LLUIImagePtr		mImagep;
 };
 
 typedef LLPointer<LLStyle> LLStyleSP;
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index 60c313b6ce..8d91aa2284 100644
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -149,6 +149,8 @@ LLTextBase::Params::Params()
 	bg_readonly_color("bg_readonly_color"),
 	bg_writeable_color("bg_writeable_color"),
 	bg_focus_color("bg_focus_color"),
+	text_selected_color("text_selected_color"),
+	bg_selected_color("bg_selected_color"),
 	allow_scroll("allow_scroll", true),
 	plain_text("plain_text",false),
 	track_end("track_end", false),
@@ -161,11 +163,12 @@ LLTextBase::Params::Params()
 	font_shadow("font_shadow"),
 	wrap("wrap"),
 	use_ellipses("use_ellipses", false),
-	allow_html("allow_html", false),
+	parse_urls("parse_urls", false),
 	parse_highlights("parse_highlights", false)
 {
 	addSynonym(track_end, "track_bottom");
 	addSynonym(wrap, "word_wrap");
+	addSynonym(parse_urls, "allow_html");
 }
 
 
@@ -184,6 +187,8 @@ LLTextBase::LLTextBase(const LLTextBase::Params &p)
 	mWriteableBgColor(p.bg_writeable_color),
 	mReadOnlyBgColor(p.bg_readonly_color),
 	mFocusBgColor(p.bg_focus_color),
+	mTextSelectedColor(p.text_selected_color),
+	mSelectedBGColor(p.bg_selected_color),
 	mReflowIndex(S32_MAX),
 	mCursorPos( 0 ),
 	mScrollNeeded(FALSE),
@@ -203,7 +208,7 @@ LLTextBase::LLTextBase(const LLTextBase::Params &p)
 	mPlainText ( p.plain_text ),
 	mWordWrap(p.wrap),
 	mUseEllipses( p.use_ellipses ),
-	mParseHTML(p.allow_html),
+	mParseHTML(p.parse_urls),
 	mParseHighlights(p.parse_highlights),
 	mBGVisible(p.bg_visible),
 	mScroller(NULL),
@@ -263,9 +268,6 @@ void LLTextBase::initFromParams(const LLTextBase::Params& p)
 	{
 		mReadOnly = p.read_only;
 	}
-
-	// HACK:  text editors always need to be enabled so that we can scroll
-	LLView::setEnabled(true);
 }
 
 bool LLTextBase::truncate()
@@ -295,11 +297,14 @@ bool LLTextBase::truncate()
 
 const LLStyle::Params& LLTextBase::getDefaultStyleParams()
 {
+	//FIXME: convert mDefaultStyle to a flyweight http://www.boost.org/doc/libs/1_40_0/libs/flyweight/doc/index.html
+	//and eliminate color member values
 	if (mStyleDirty)
 	{
 		  mDefaultStyle
-				  .color(LLUIColor(&mFgColor))
+				  .color(LLUIColor(&mFgColor))						// pass linked color instead of copy of mFGColor
 				  .readonly_color(LLUIColor(&mReadOnlyFgColor))
+				  .selected_color(LLUIColor(&mTextSelectedColor))
 				  .font(mDefaultFont)
 				  .drop_shadow(mFontShadow);
 		  mStyleDirty = false;
@@ -397,7 +402,7 @@ void LLTextBase::drawSelectionBackground()
 		
 		// Draw the selection box (we're using a box instead of reversing the colors on the selected text).
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-		const LLColor4& color = mReadOnly ? mReadOnlyFgColor.get() : mFgColor.get();
+		const LLColor4& color = mSelectedBGColor;
 		F32 alpha = hasFocus() ? 0.7f : 0.3f;
 		alpha *= getDrawContext().mAlpha;
 		LLColor4 selection_color(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], alpha);
@@ -437,7 +442,6 @@ void LLTextBase::drawCursor()
 		}
 		else
 		{
-			//segmentp = mSegments.back();
 			return;
 		}
 
@@ -471,21 +475,8 @@ void LLTextBase::drawCursor()
 			{
 				LLColor4 text_color;
 				const LLFontGL* fontp;
-				if (segmentp)
-				{
 					text_color = segmentp->getColor();
 					fontp = segmentp->getStyle()->getFont();
-				}
-				else if (mReadOnly)
-				{
-					text_color = mReadOnlyFgColor.get();
-					fontp = mDefaultFont;
-				}
-				else
-				{
-					text_color = mFgColor.get();
-					fontp = mDefaultFont;
-				}
 				fontp->render(text, mCursorPos, cursor_rect, 
 					LLColor4(1.f - text_color.mV[VRED], 1.f - text_color.mV[VGREEN], 1.f - text_color.mV[VBLUE], alpha),
 					LLFontGL::LEFT, mVAlign,
@@ -1015,21 +1006,26 @@ void LLTextBase::draw()
 	if (mBGVisible)
 	{
 		// clip background rect against extents, if we support scrolling
-		LLLocalClipRect clip(doc_rect, mScroller != NULL);
-
+		LLRect bg_rect = mVisibleTextRect;
+		if (mScroller)
+		{
+			bg_rect.intersectWith(doc_rect);
+		}
 		LLColor4 bg_color = mReadOnly 
 							? mReadOnlyBgColor.get()
 							: hasFocus() 
 								? mFocusBgColor.get() 
 								: mWriteableBgColor.get();
-		gl_rect_2d(mVisibleTextRect, bg_color, TRUE);
+		gl_rect_2d(doc_rect, bg_color, TRUE);
 	}
 
 	// draw document view
 	LLUICtrl::draw();
 
 	{
-		// only clip if we support scrolling (mScroller != NULL)
+		// only clip if we support scrolling...
+		// since convention is that text boxes never vertically truncate their contents
+		// regardless of rect bounds
 		LLLocalClipRect clip(doc_rect, mScroller != NULL);
 		drawSelectionBackground();
 		drawText();
@@ -1493,23 +1489,32 @@ void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::iterator* seg
 
 LLTextBase::segment_set_t::iterator LLTextBase::getSegIterContaining(S32 index)
 {
+	static LLPointer<LLIndexSegment> index_segment = new LLIndexSegment();
+
 	if (index > getLength()) { return mSegments.end(); }
 
 	// when there are no segments, we return the end iterator, which must be checked by caller
 	if (mSegments.size() <= 1) { return mSegments.begin(); }
 
-	segment_set_t::iterator it = mSegments.upper_bound(new LLIndexSegment(index));
+	//FIXME: avoid operator new somehow (without running into refcount problems)
+	index_segment->setStart(index);
+	index_segment->setEnd(index);
+	segment_set_t::iterator it = mSegments.upper_bound(index_segment);
 	return it;
 }
 
 LLTextBase::segment_set_t::const_iterator LLTextBase::getSegIterContaining(S32 index) const
 {
+	static LLPointer<LLIndexSegment> index_segment = new LLIndexSegment();
+
 	if (index > getLength()) { return mSegments.end(); }
 
 	// when there are no segments, we return the end iterator, which must be checked by caller
 	if (mSegments.size() <= 1) { return mSegments.begin(); }
 
-	LLTextBase::segment_set_t::const_iterator it =  mSegments.upper_bound(new LLIndexSegment(index));
+	index_segment->setStart(index);
+	index_segment->setEnd(index);
+	LLTextBase::segment_set_t::const_iterator it =  mSegments.upper_bound(index_segment);
 	return it;
 }
 
@@ -1645,7 +1650,7 @@ void LLTextBase::appendTextImpl(const std::string &new_text, const LLStyle::Para
 			}
 			else
 			{
-				appendAndHighlightText(match.getLabel(), part, link_params);
+				appendAndHighlightText(match.getLabel(), part, link_params, match.underlineOnHoverOnly());
 
 				// set the tooltip for the Url label
 				if (! match.getTooltip().empty())
@@ -1728,7 +1733,7 @@ void LLTextBase::appendWidget(const LLInlineViewSegment::Params& params, const s
 	insertStringNoUndo(getLength(), widget_wide_text, &segments);
 }
 
-void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params)
+void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params, bool underline_on_hover_only)
 {
 	// Save old state
 	S32 selection_start = mSelectionStart;
@@ -1759,7 +1764,17 @@ void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 hig
 
 			S32 cur_length = getLength();
 			LLStyleConstSP sp(new LLStyle(highlight_params));
-			LLTextSegmentPtr segmentp = new LLNormalTextSegment(sp, cur_length, cur_length + wide_text.size(), *this);
+			LLTextSegmentPtr segmentp;
+			if(underline_on_hover_only)
+			{
+				highlight_params.font.style("NORMAL");
+				LLStyleConstSP normal_sp(new LLStyle(highlight_params));
+				segmentp = new LLOnHoverChangeableTextSegment(sp, normal_sp, cur_length, cur_length + wide_text.size(), *this);
+			}
+			else
+			{
+				segmentp = new LLNormalTextSegment(sp, cur_length, cur_length + wide_text.size(), *this);
+			}
 			segment_vec_t segments;
 			segments.push_back(segmentp);
 			insertStringNoUndo(cur_length, wide_text, &segments);
@@ -1774,7 +1789,17 @@ void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 hig
 		S32 segment_start = old_length;
 		S32 segment_end = old_length + wide_text.size();
 		LLStyleConstSP sp(new LLStyle(style_params));
+		if (underline_on_hover_only)
+		{
+			LLStyle::Params normal_style_params(style_params);
+			normal_style_params.font.style("NORMAL");
+			LLStyleConstSP normal_sp(new LLStyle(normal_style_params));
+			segments.push_back(new LLOnHoverChangeableTextSegment(sp, normal_sp, segment_start, segment_end, *this ));
+		}
+		else
+		{
 		segments.push_back(new LLNormalTextSegment(sp, segment_start, segment_end, *this ));
+		}
 
 		insertStringNoUndo(getLength(), wide_text, &segments);
 	}
@@ -1798,7 +1823,7 @@ void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 hig
 	}
 }
 
-void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params)
+void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params, bool underline_on_hover_only)
 {
 	if (new_text.empty()) return; 
 
@@ -1810,7 +1835,7 @@ void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlig
 		if(pos!=start)
 		{
 			std::string str = std::string(new_text,start,pos-start);
-			appendAndHighlightTextImpl(str,highlight_part, style_params);
+			appendAndHighlightTextImpl(str,highlight_part, style_params, underline_on_hover_only);
 		}
 		appendLineBreakSegment(style_params);
 		start = pos+1;
@@ -1818,7 +1843,7 @@ void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlig
 	}
 
 	std::string str = std::string(new_text,start,new_text.length()-start);
-	appendAndHighlightTextImpl(str,highlight_part, style_params);
+	appendAndHighlightTextImpl(str,highlight_part, style_params, underline_on_hover_only);
 }
 
 
@@ -2272,6 +2297,7 @@ void LLTextBase::updateRects()
 	// allow horizontal scrolling?
 	// if so, use entire width of text contents
 	// otherwise, stop at width of mVisibleTextRect
+	//FIXME: consider use of getWordWrap() instead
 	doc_rect.mRight = mScroller 
 		? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight)
 		: mVisibleTextRect.getWidth();
@@ -2481,7 +2507,7 @@ F32 LLNormalTextSegment::drawClippedSegment(S32 seg_start, S32 seg_end, S32 sele
 
 		font->render(text, start, 
 			     rect,
-			     LLColor4( 1.f - color.mV[0], 1.f - color.mV[1], 1.f - color.mV[2], 1.f ),
+			     mStyle->getSelectedColor().get(),
 			     LLFontGL::LEFT, mEditor.mVAlign, 
 			     LLFontGL::NORMAL, 
 			     LLFontGL::NO_SHADOW, 
@@ -2678,6 +2704,33 @@ void LLNormalTextSegment::dump() const
 		llendl;
 }
 
+//
+// LLOnHoverChangeableTextSegment
+//
+
+LLOnHoverChangeableTextSegment::LLOnHoverChangeableTextSegment( LLStyleConstSP style, LLStyleConstSP normal_style, S32 start, S32 end, LLTextBase& editor ):
+	  LLNormalTextSegment(normal_style, start, end, editor),
+	  mHoveredStyle(style),
+	  mNormalStyle(normal_style){}
+
+/*virtual*/ 
+F32 LLOnHoverChangeableTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
+{
+	F32 result = LLNormalTextSegment::draw(start, end, selection_start, selection_end, draw_rect);
+	if (end == mEnd - mStart)
+	{
+		mStyle = mNormalStyle;
+	}
+	return result;
+}
+
+/*virtual*/
+BOOL LLOnHoverChangeableTextSegment::handleHover(S32 x, S32 y, MASK mask)
+{
+	mStyle = mHoveredStyle;
+	return LLNormalTextSegment::handleHover(x, y, mask);
+}
+
 
 //
 // LLInlineViewSegment
diff --git a/indra/llui/lltextbase.h b/indra/llui/lltextbase.h
index 86ab8f357d..e5dfecad54 100644
--- a/indra/llui/lltextbase.h
+++ b/indra/llui/lltextbase.h
@@ -139,10 +139,25 @@ protected:
 	boost::signals2::connection mImageLoadedConnection;
 };
 
+// Text segment that changes it's style depending of mouse pointer position ( is it inside or outside segment)
+class LLOnHoverChangeableTextSegment : public LLNormalTextSegment
+{
+public:
+	LLOnHoverChangeableTextSegment( LLStyleConstSP style, LLStyleConstSP normal_style, S32 start, S32 end, LLTextBase& editor );
+	/*virtual*/ F32 draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect);
+	/*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask);
+protected:
+	// Style used for text when mouse pointer is over segment
+	LLStyleConstSP		mHoveredStyle;
+	// Style used for text when mouse pointer is outside segment
+	LLStyleConstSP		mNormalStyle;
+
+};
+
 class LLIndexSegment : public LLTextSegment
 {
 public:
-	LLIndexSegment(S32 pos) : LLTextSegment(pos, pos) {}
+	LLIndexSegment() : LLTextSegment(0, 0) {}
 };
 
 class LLInlineViewSegment : public LLTextSegment
@@ -235,7 +250,9 @@ public:
 								text_readonly_color,
 								bg_readonly_color,
 								bg_writeable_color,
-								bg_focus_color;
+								bg_focus_color,
+								text_selected_color,
+								bg_selected_color;
 
 		Optional<bool>			bg_visible,
 								border_visible,
@@ -245,7 +262,7 @@ public:
 								plain_text,
 								wrap,
 								use_ellipses,
-								allow_html,
+								parse_urls,
 								parse_highlights,
 								clip_partial;
 								
@@ -435,7 +452,7 @@ protected:
 	S32								insertStringNoUndo(S32 pos, const LLWString &wstr, segment_vec_t* segments = NULL); // returns num of chars actually inserted
 	S32 							removeStringNoUndo(S32 pos, S32 length);
 	S32								overwriteCharNoUndo(S32 pos, llwchar wc);
-	void							appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& stylep);
+	void							appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& stylep, bool underline_on_hover_only = false);
 
 
 	// manage segments 
@@ -478,7 +495,7 @@ protected:
 	void							replaceUrlLabel(const std::string &url, const std::string &label);
 	
 	void							appendTextImpl(const std::string &new_text, const LLStyle::Params& input_params = LLStyle::Params());
-	void							appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params);
+	void							appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params, bool underline_on_hover_only = false);
 	
 
 protected:
@@ -501,6 +518,8 @@ protected:
 	LLUIColor					mWriteableBgColor;
 	LLUIColor					mReadOnlyBgColor;
 	LLUIColor					mFocusBgColor;
+	LLUIColor					mTextSelectedColor;
+	LLUIColor					mSelectedBGColor;
 
 	// cursor
 	S32							mCursorPos;			// I-beam is just after the mCursorPos-th character.
diff --git a/indra/llui/lltextbox.cpp b/indra/llui/lltextbox.cpp
index 3e2422c88b..6a905b7ec0 100644
--- a/indra/llui/lltextbox.cpp
+++ b/indra/llui/lltextbox.cpp
@@ -113,6 +113,17 @@ BOOL LLTextBox::handleHover(S32 x, S32 y, MASK mask)
 	return handled;
 }
 
+void LLTextBox::setEnabled(BOOL enabled)
+{
+	// just treat enabled as read-only flag
+	bool read_only = !enabled;
+	if (read_only != mReadOnly)
+	{
+		LLTextBase::setReadOnly(read_only);
+		updateSegments();
+	}
+}
+
 void LLTextBox::setText(const LLStringExplicit& text , const LLStyle::Params& input_params )
 {
 	// does string argument insertion
diff --git a/indra/llui/lltextbox.h b/indra/llui/lltextbox.h
index 4634dd0ff2..071e18c638 100644
--- a/indra/llui/lltextbox.h
+++ b/indra/llui/lltextbox.h
@@ -52,6 +52,8 @@ public:
 	/*virtual*/ BOOL handleMouseUp(S32 x, S32 y, MASK mask);
 	/*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask);
 
+	/*virtual*/ void setEnabled(BOOL enabled);
+
 	/*virtual*/ void setText( const LLStringExplicit& text, const LLStyle::Params& input_params = LLStyle::Params() );
 	
 	void			setRightAlign()							{ mHAlign = LLFontGL::RIGHT; }
diff --git a/indra/llui/lltexteditor.cpp b/indra/llui/lltexteditor.cpp
index e09df60704..94bf716e7d 100644
--- a/indra/llui/lltexteditor.cpp
+++ b/indra/llui/lltexteditor.cpp
@@ -283,6 +283,9 @@ void LLTextEditor::initFromParams( const LLTextEditor::Params& p)
 {
 	LLTextBase::initFromParams(p);
 
+	// HACK:  text editors always need to be enabled so that we can scroll
+	LLView::setEnabled(true);
+
 	if (p.commit_on_focus_lost.isProvided())
 	{
 		mCommitOnFocusLost = p.commit_on_focus_lost;
@@ -452,8 +455,13 @@ S32 LLTextEditor::nextWordPos(S32 cursorPos) const
 
 const LLTextSegmentPtr	LLTextEditor::getPreviousSegment() const
 {
+	static LLPointer<LLIndexSegment> index_segment = new LLIndexSegment;
+
+	index_segment->setStart(mCursorPos);
+	index_segment->setEnd(mCursorPos);
+
 	// find segment index at character to left of cursor (or rightmost edge of selection)
-	segment_set_t::const_iterator it = mSegments.lower_bound(new LLIndexSegment(mCursorPos));
+	segment_set_t::const_iterator it = mSegments.lower_bound(index_segment);
 
 	if (it != mSegments.end())
 	{
diff --git a/indra/llui/lltextvalidate.cpp b/indra/llui/lltextvalidate.cpp
index d7260369ec..4b9faa0560 100644
--- a/indra/llui/lltextvalidate.cpp
+++ b/indra/llui/lltextvalidate.cpp
@@ -44,6 +44,7 @@ namespace LLTextValidate
 		declare("alpha_num_space", validateAlphaNumSpace);
 		declare("ascii_printable_no_pipe", validateASCIIPrintableNoPipe);
 		declare("ascii_printable_no_space", validateASCIIPrintableNoSpace);
+		declare("ascii_with_newline", validateASCIIWithNewLine);
 	}
 
 	// Limits what characters can be used to [1234567890.-] with [-] only valid in the first position.
@@ -293,4 +294,21 @@ namespace LLTextValidate
 		}
 		return rv;
 	}
+
+	// Used for multiline text stored on the server.
+	// Example is landmark description in Places SP.
+	bool validateASCIIWithNewLine(const LLWString &str)
+	{
+		bool rv = TRUE;
+		S32 len = str.length();
+		while(len--)
+		{
+			if (str[len] < 0x20 && str[len] != 0xA || str[len] > 0x7f)
+			{
+				rv = FALSE;
+				break;
+			}
+		}
+		return rv;
+	}
 }
diff --git a/indra/llui/lltextvalidate.h b/indra/llui/lltextvalidate.h
index 1b61eca051..84644be30c 100644
--- a/indra/llui/lltextvalidate.h
+++ b/indra/llui/lltextvalidate.h
@@ -51,6 +51,7 @@ namespace LLTextValidate
 	bool	validateASCIIPrintableNoPipe(const LLWString &str); 
 	bool	validateASCIIPrintableNoSpace(const LLWString &str);
 	bool	validateASCII(const LLWString &str);
+	bool	validateASCIIWithNewLine(const LLWString &str);
 }
 
 
diff --git a/indra/llui/lltooltip.cpp b/indra/llui/lltooltip.cpp
index 8ab4a119e5..b02d3122fe 100644
--- a/indra/llui/lltooltip.cpp
+++ b/indra/llui/lltooltip.cpp
@@ -180,7 +180,7 @@ LLToolTip::LLToolTip(const LLToolTip::Params& p)
 	params.font = p.font;
 	params.use_ellipses = true;
 	params.wrap = p.wrap;
-	params.allow_html = false; // disallow hyperlinks in tooltips, as they want to spawn their own explanatory tooltips
+	params.parse_urls = false; // disallow hyperlinks in tooltips, as they want to spawn their own explanatory tooltips
 	mTextBox = LLUICtrlFactory::create<LLTextBox> (params);
 	addChild(mTextBox);
 	
diff --git a/indra/llui/llui.cpp b/indra/llui/llui.cpp
index 03223b45f7..d33d8e3178 100644
--- a/indra/llui/llui.cpp
+++ b/indra/llui/llui.cpp
@@ -460,7 +460,7 @@ void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 border_width, S32 border
 	gl_draw_scaled_image_with_border(x, y, width, height, image, color, solid_color, uv_rect, scale_rect);
 }
 
-void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTexture* image, const LLColor4& color, BOOL solid_color, const LLRectf& uv_rect, const LLRectf& scale_rect)
+void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTexture* image, const LLColor4& color, BOOL solid_color, const LLRectf& uv_outer_rect, const LLRectf& center_rect)
 {
 	stop_glerror();
 
@@ -470,36 +470,53 @@ void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTex
 		return;
 	}
 
+	// add in offset of current image to current ui translation
+	const LLVector3 ui_scale = gGL.getUIScale();
+	const LLVector3 ui_translation = (gGL.getUITranslation() + LLVector3(x, y, 0.f)).scaledVec(ui_scale);
+
+	F32 uv_width = uv_outer_rect.getWidth();
+	F32 uv_height = uv_outer_rect.getHeight();
+
 	// shrink scaling region to be proportional to clipped image region
-	LLRectf scale_rect_uv(
-		uv_rect.mLeft + (scale_rect.mLeft * uv_rect.getWidth()),
-		uv_rect.mBottom + (scale_rect.mTop * uv_rect.getHeight()),
-		uv_rect.mLeft + (scale_rect.mRight * uv_rect.getWidth()),
-		uv_rect.mBottom + (scale_rect.mBottom * uv_rect.getHeight()));
-
-	S32 image_natural_width = llround((F32)image->getWidth(0) * uv_rect.getWidth());
-	S32 image_natural_height = llround((F32)image->getHeight(0) * uv_rect.getHeight());
-
-	LLRect draw_rect(0, height, width, 0);
-	LLRect draw_scale_rect(llround(scale_rect_uv.mLeft * (F32)image->getWidth(0)),
-						llround(scale_rect_uv.mTop * (F32)image->getHeight(0)),
-						llround(scale_rect_uv.mRight * (F32)image->getWidth(0)),
-						llround(scale_rect_uv.mBottom * (F32)image->getHeight(0)));
-	// scale fixed region of image to drawn region
-	draw_scale_rect.mRight += width - image_natural_width;
-	draw_scale_rect.mTop += height - image_natural_height;
-
-	S32 border_shrink_width = llmax(0, draw_scale_rect.mLeft - draw_scale_rect.mRight);
-	S32 border_shrink_height = llmax(0, draw_scale_rect.mBottom - draw_scale_rect.mTop);
-
-	F32 shrink_width_ratio = scale_rect.getWidth() == 1.f ? 0.f : border_shrink_width / ((F32)image_natural_width * (1.f - scale_rect.getWidth()));
-	F32 shrink_height_ratio = scale_rect.getHeight() == 1.f ? 0.f : border_shrink_height / ((F32)image_natural_height * (1.f - scale_rect.getHeight()));
-
-	F32 shrink_scale = 1.f - llmax(shrink_width_ratio, shrink_height_ratio);
-	draw_scale_rect.mLeft = llround((F32)draw_scale_rect.mLeft * shrink_scale);
-	draw_scale_rect.mTop = llround(lerp((F32)height, (F32)draw_scale_rect.mTop, shrink_scale));
-	draw_scale_rect.mRight = llround(lerp((F32)width, (F32)draw_scale_rect.mRight, shrink_scale));
-	draw_scale_rect.mBottom = llround((F32)draw_scale_rect.mBottom * shrink_scale);
+	LLRectf uv_center_rect(
+		uv_outer_rect.mLeft + (center_rect.mLeft * uv_width),
+		uv_outer_rect.mBottom + (center_rect.mTop * uv_height),
+		uv_outer_rect.mLeft + (center_rect.mRight * uv_width),
+		uv_outer_rect.mBottom + (center_rect.mBottom * uv_height));
+
+	F32 image_width = image->getWidth(0);
+	F32 image_height = image->getHeight(0);
+
+	S32 image_natural_width = llround(image_width * uv_width);
+	S32 image_natural_height = llround(image_height * uv_height);
+
+	LLRectf draw_center_rect(	uv_center_rect.mLeft * image_width,
+								uv_center_rect.mTop * image_height,
+								uv_center_rect.mRight * image_width,
+								uv_center_rect.mBottom * image_height);
+
+	{	// scale fixed region of image to drawn region
+		draw_center_rect.mRight += width - image_natural_width;
+		draw_center_rect.mTop += height - image_natural_height;
+
+		F32 border_shrink_width = llmax(0.f, draw_center_rect.mLeft - draw_center_rect.mRight);
+		F32 border_shrink_height = llmax(0.f, draw_center_rect.mBottom - draw_center_rect.mTop);
+
+		F32 shrink_width_ratio = center_rect.getWidth() == 1.f ? 0.f : border_shrink_width / ((F32)image_natural_width * (1.f - center_rect.getWidth()));
+		F32 shrink_height_ratio = center_rect.getHeight() == 1.f ? 0.f : border_shrink_height / ((F32)image_natural_height * (1.f - center_rect.getHeight()));
+
+		F32 shrink_scale = 1.f - llmax(shrink_width_ratio, shrink_height_ratio);
+
+		draw_center_rect.mLeft = llround(ui_translation.mV[VX] + (F32)draw_center_rect.mLeft * shrink_scale * ui_scale.mV[VX]);
+		draw_center_rect.mTop = llround(ui_translation.mV[VY] + lerp((F32)height, (F32)draw_center_rect.mTop, shrink_scale) * ui_scale.mV[VY]);
+		draw_center_rect.mRight = llround(ui_translation.mV[VX] + lerp((F32)width, (F32)draw_center_rect.mRight, shrink_scale) * ui_scale.mV[VX]);
+		draw_center_rect.mBottom = llround(ui_translation.mV[VY] + (F32)draw_center_rect.mBottom * shrink_scale * ui_scale.mV[VY]);
+	}
+
+	LLRectf draw_outer_rect(ui_translation.mV[VX], 
+							ui_translation.mV[VY] + height * ui_scale.mV[VY], 
+							ui_translation.mV[VX] + width * ui_scale.mV[VX], 
+							ui_translation.mV[VY]);
 
 	LLGLSUIDefault gls_ui;
 	
@@ -509,136 +526,174 @@ void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTex
 		gGL.getTexUnit(0)->setTextureAlphaBlend(LLTexUnit::TBO_MULT, LLTexUnit::TBS_TEX_ALPHA, LLTexUnit::TBS_VERT_ALPHA);
 	}
 
-	gGL.pushUIMatrix();
-	{
-		gGL.translateUI((F32)x, (F32)y, 0.f);
+	gGL.getTexUnit(0)->bind(image);
 
-		gGL.getTexUnit(0)->bind(image);
+	gGL.color4fv(color.mV);
+	
+	const S32 NUM_VERTICES = 9 * 4; // 9 quads
+	LLVector2 uv[NUM_VERTICES];
+	LLVector3 pos[NUM_VERTICES];
 
-		gGL.color4fv(color.mV);
-		
-		gGL.begin(LLRender::QUADS);
-		{
-			// draw bottom left
-			gGL.texCoord2f(uv_rect.mLeft, uv_rect.mBottom);
-			gGL.vertex2i(0, 0);
+	S32 index = 0;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, uv_rect.mBottom);
-			gGL.vertex2i(draw_scale_rect.mLeft, 0);
+	gGL.begin(LLRender::QUADS);
+	{
+		// draw bottom left
+		uv[index] = LLVector2(uv_outer_rect.mLeft, uv_outer_rect.mBottom);
+		pos[index] = LLVector3(draw_outer_rect.mLeft, draw_outer_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_outer_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_outer_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mLeft, scale_rect_uv.mBottom);
-			gGL.vertex2i(0, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			// draw bottom middle
-			gGL.texCoord2f(scale_rect_uv.mLeft, uv_rect.mBottom);
-			gGL.vertex2i(draw_scale_rect.mLeft, 0);
+		uv[index] = LLVector2(uv_outer_rect.mLeft, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_outer_rect.mLeft, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, uv_rect.mBottom);
-			gGL.vertex2i(draw_scale_rect.mRight, 0);
+		// draw bottom middle
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_outer_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_outer_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_outer_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_outer_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			// draw bottom right
-			gGL.texCoord2f(scale_rect_uv.mRight, uv_rect.mBottom);
-			gGL.vertex2i(draw_scale_rect.mRight, 0);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mRight, uv_rect.mBottom);
-			gGL.vertex2i(width, 0);
+		// draw bottom right
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_outer_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_outer_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mRight, scale_rect_uv.mBottom);
-			gGL.vertex2i(width, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_outer_rect.mRight, uv_outer_rect.mBottom);
+		pos[index] = LLVector3(draw_outer_rect.mRight, draw_outer_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_outer_rect.mRight, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_outer_rect.mRight, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			// draw left 
-			gGL.texCoord2f(uv_rect.mLeft, scale_rect_uv.mBottom);
-			gGL.vertex2i(0, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mBottom);
+		// draw left 
+		uv[index] = LLVector2(uv_outer_rect.mLeft, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_outer_rect.mLeft, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mLeft, scale_rect_uv.mTop);
-			gGL.vertex2i(0, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mTop, 0.f);
+		index++;
 
-			// draw middle
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_outer_rect.mLeft, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_outer_rect.mLeft, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mBottom);
+		// draw middle
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mTop, 0.f);
+		index++;
 
-			// draw right 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mBottom);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mBottom);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mRight, scale_rect_uv.mBottom);
-			gGL.vertex2i(width, draw_scale_rect.mBottom);
+		// draw right 
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mRight, scale_rect_uv.mTop);
-			gGL.vertex2i(width, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_outer_rect.mRight, uv_center_rect.mBottom);
+		pos[index] = LLVector3(draw_outer_rect.mRight, draw_center_rect.mBottom, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_outer_rect.mRight, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_outer_rect.mRight, draw_center_rect.mTop, 0.f);
+		index++;
 
-			// draw top left
-			gGL.texCoord2f(uv_rect.mLeft, scale_rect_uv.mTop);
-			gGL.vertex2i(0, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mTop);
+		// draw top left
+		uv[index] = LLVector2(uv_outer_rect.mLeft, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_outer_rect.mLeft, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, uv_rect.mTop);
-			gGL.vertex2i(draw_scale_rect.mLeft, height);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mLeft, uv_rect.mTop);
-			gGL.vertex2i(0, height);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_outer_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_outer_rect.mTop, 0.f);
+		index++;
 
-			// draw top middle
-			gGL.texCoord2f(scale_rect_uv.mLeft, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mLeft, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_outer_rect.mLeft, uv_outer_rect.mTop);
+		pos[index] = LLVector3(draw_outer_rect.mLeft, draw_outer_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mTop);
+		// draw top middle
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, uv_rect.mTop);
-			gGL.vertex2i(draw_scale_rect.mRight, height);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mLeft, uv_rect.mTop);
-			gGL.vertex2i(draw_scale_rect.mLeft, height);
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_outer_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_outer_rect.mTop, 0.f);
+		index++;
 
-			// draw top right
-			gGL.texCoord2f(scale_rect_uv.mRight, scale_rect_uv.mTop);
-			gGL.vertex2i(draw_scale_rect.mRight, draw_scale_rect.mTop);
+		uv[index] = LLVector2(uv_center_rect.mLeft, uv_outer_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mLeft, draw_outer_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mRight, scale_rect_uv.mTop);
-			gGL.vertex2i(width, draw_scale_rect.mTop);
+		// draw top right
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(uv_rect.mRight, uv_rect.mTop);
-			gGL.vertex2i(width, height);
+		uv[index] = LLVector2(uv_outer_rect.mRight, uv_center_rect.mTop);
+		pos[index] = LLVector3(draw_outer_rect.mRight, draw_center_rect.mTop, 0.f);
+		index++;
 
-			gGL.texCoord2f(scale_rect_uv.mRight, uv_rect.mTop);
-			gGL.vertex2i(draw_scale_rect.mRight, height);
-		}
-		gGL.end();
+		uv[index] = LLVector2(uv_outer_rect.mRight, uv_outer_rect.mTop);
+		pos[index] = LLVector3(draw_outer_rect.mRight, draw_outer_rect.mTop, 0.f);
+		index++;
+
+		uv[index] = LLVector2(uv_center_rect.mRight, uv_outer_rect.mTop);
+		pos[index] = LLVector3(draw_center_rect.mRight, draw_outer_rect.mTop, 0.f);
+		index++;
+
+		gGL.vertexBatchPreTransformed(pos, uv, NUM_VERTICES);
 	}
-	gGL.popUIMatrix();
+	gGL.end();
 
 	if (solid_color)
 	{
@@ -668,25 +723,40 @@ void gl_draw_scaled_rotated_image(S32 x, S32 y, S32 width, S32 height, F32 degre
 
 	if (degrees == 0.f)
 	{
-		gGL.pushUIMatrix();
-		gGL.translateUI((F32)x, (F32)y, 0.f);
-			
+		const S32 NUM_VERTICES = 4; // 9 quads
+		LLVector2 uv[NUM_VERTICES];
+		LLVector3 pos[NUM_VERTICES];
+
 		gGL.begin(LLRender::QUADS);
 		{
-			gGL.texCoord2f(uv_rect.mRight, uv_rect.mTop);
-			gGL.vertex2i(width, height );
-
-			gGL.texCoord2f(uv_rect.mLeft, uv_rect.mTop);
-			gGL.vertex2i(0, height );
-
-			gGL.texCoord2f(uv_rect.mLeft, uv_rect.mBottom);
-			gGL.vertex2i(0, 0);
-
-			gGL.texCoord2f(uv_rect.mRight, uv_rect.mBottom);
-			gGL.vertex2i(width, 0);
+			LLVector3 ui_scale = gGL.getUIScale();
+			LLVector3 ui_translation = gGL.getUITranslation();
+			ui_translation.mV[VX] += x;
+			ui_translation.mV[VY] += y;
+			ui_translation.scaleVec(ui_scale);
+			S32 index = 0;
+			S32 scaled_width = llround(width * ui_scale.mV[VX]);
+			S32 scaled_height = llround(height * ui_scale.mV[VY]);
+
+			uv[index] = LLVector2(uv_rect.mRight, uv_rect.mTop);
+			pos[index] = LLVector3(ui_translation.mV[VX] + scaled_width, ui_translation.mV[VY] + scaled_height, 0.f);
+			index++;
+
+			uv[index] = LLVector2(uv_rect.mLeft, uv_rect.mTop);
+			pos[index] = LLVector3(ui_translation.mV[VX], ui_translation.mV[VY] + scaled_height, 0.f);
+			index++;
+
+			uv[index] = LLVector2(uv_rect.mLeft, uv_rect.mBottom);
+			pos[index] = LLVector3(ui_translation.mV[VX], ui_translation.mV[VY], 0.f);
+			index++;
+
+			uv[index] = LLVector2(uv_rect.mRight, uv_rect.mBottom);
+			pos[index] = LLVector3(ui_translation.mV[VX] + scaled_width, ui_translation.mV[VY], 0.f);
+			index++;
+
+			gGL.vertexBatchPreTransformed(pos, uv, NUM_VERTICES);
 		}
 		gGL.end();
-		gGL.popUIMatrix();
 	}
 	else
 	{
@@ -755,25 +825,6 @@ void gl_stippled_line_3d( const LLVector3& start, const LLVector3& end, const LL
 	LLUI::setLineWidth(1.f);
 }
 
-
-void gl_rect_2d_xor(S32 left, S32 top, S32 right, S32 bottom)
-{
-	gGL.color4fv( LLColor4::white.mV );
-	glLogicOp( GL_XOR );
-	stop_glerror();
-
-	gGL.begin(LLRender::QUADS);
-		gGL.vertex2i(left, top);
-		gGL.vertex2i(left, bottom);
-		gGL.vertex2i(right, bottom);
-		gGL.vertex2i(right, top);
-	gGL.end();
-
-	glLogicOp( GL_COPY );
-	stop_glerror();
-}
-
-
 void gl_arc_2d(F32 center_x, F32 center_y, F32 radius, S32 steps, BOOL filled, F32 start_angle, F32 end_angle)
 {
 	if (end_angle < start_angle)
@@ -1007,42 +1058,6 @@ void gl_washer_segment_2d(F32 outer_radius, F32 inner_radius, F32 start_radians,
 	gGL.end();
 }
 
-// Draws spokes around a circle.
-void gl_washer_spokes_2d(F32 outer_radius, F32 inner_radius, S32 count, const LLColor4& inner_color, const LLColor4& outer_color)
-{
-	const F32 DELTA = F_TWO_PI / count;
-	const F32 HALF_DELTA = DELTA * 0.5f;
-	const F32 SIN_DELTA = sin( DELTA );
-	const F32 COS_DELTA = cos( DELTA );
-
-	F32 x1 = outer_radius * cos( HALF_DELTA );
-	F32 y1 = outer_radius * sin( HALF_DELTA );
-	F32 x2 = inner_radius * cos( HALF_DELTA );
-	F32 y2 = inner_radius * sin( HALF_DELTA );
-
-	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-
-	gGL.begin( LLRender::LINES  );
-	{
-		while( count-- )
-		{
-			gGL.color4fv(outer_color.mV);
-			gGL.vertex2f( x1, y1 );
-			gGL.color4fv(inner_color.mV);
-			gGL.vertex2f( x2, y2 );
-
-			F32 x1_new = x1 * COS_DELTA - y1 * SIN_DELTA;
-			y1 = x1 * SIN_DELTA +  y1 * COS_DELTA;
-			x1 = x1_new;
-
-			F32 x2_new = x2 * COS_DELTA - y2 * SIN_DELTA;
-			y2 = x2 * SIN_DELTA +  y2 * COS_DELTA;
-			x2 = x2_new;
-		}
-	}
-	gGL.end();
-}
-
 void gl_rect_2d_simple_tex( S32 width, S32 height )
 {
 	gGL.begin( LLRender::QUADS );
@@ -1230,6 +1245,7 @@ void gl_segmented_rect_2d_tex(const S32 left,
 	gGL.popUIMatrix();
 }
 
+//FIXME: rewrite to use scissor?
 void gl_segmented_rect_2d_fragment_tex(const S32 left, 
 									   const S32 top, 
 									   const S32 right, 
diff --git a/indra/llui/llui.h b/indra/llui/llui.h
index afec2e9c26..fc545c85d5 100644
--- a/indra/llui/llui.h
+++ b/indra/llui/llui.h
@@ -90,7 +90,6 @@ void gl_ring( F32 radius, F32 width, const LLColor4& center_color, const LLColor
 void gl_corners_2d(S32 left, S32 top, S32 right, S32 bottom, S32 length, F32 max_frac);
 void gl_washer_2d(F32 outer_radius, F32 inner_radius, S32 steps, const LLColor4& inner_color, const LLColor4& outer_color);
 void gl_washer_segment_2d(F32 outer_radius, F32 inner_radius, F32 start_radians, F32 end_radians, S32 steps, const LLColor4& inner_color, const LLColor4& outer_color);
-void gl_washer_spokes_2d(F32 outer_radius, F32 inner_radius, S32 count, const LLColor4& inner_color, const LLColor4& outer_color);
 
 void gl_draw_image(S32 x, S32 y, LLTexture* image, const LLColor4& color = UI_VERTEX_COLOR, const LLRectf& uv_rect = LLRectf(0.f, 1.f, 1.f, 0.f));
 void gl_draw_scaled_image(S32 x, S32 y, S32 width, S32 height, LLTexture* image, const LLColor4& color = UI_VERTEX_COLOR, const LLRectf& uv_rect = LLRectf(0.f, 1.f, 1.f, 0.f));
@@ -99,7 +98,6 @@ void gl_draw_scaled_rotated_image(S32 x, S32 y, S32 width, S32 height, F32 degre
 void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 border_width, S32 border_height, S32 width, S32 height, LLTexture* image, const LLColor4 &color, BOOL solid_color = FALSE, const LLRectf& uv_rect = LLRectf(0.f, 1.f, 1.f, 0.f));
 void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTexture* image, const LLColor4 &color, BOOL solid_color = FALSE, const LLRectf& uv_rect = LLRectf(0.f, 1.f, 1.f, 0.f), const LLRectf& scale_rect = LLRectf(0.f, 1.f, 1.f, 0.f));
 
-void gl_rect_2d_xor(S32 left, S32 top, S32 right, S32 bottom);
 void gl_stippled_line_3d( const LLVector3& start, const LLVector3& end, const LLColor4& color, F32 phase = 0.f ); 
 
 void gl_rect_2d_simple_tex( S32 width, S32 height );
diff --git a/indra/llui/lluictrl.cpp b/indra/llui/lluictrl.cpp
index 294c96f8f4..3ac3bf8c41 100644
--- a/indra/llui/lluictrl.cpp
+++ b/indra/llui/lluictrl.cpp
@@ -95,6 +95,7 @@ LLUICtrl::LLUICtrl(const LLUICtrl::Params& p, const LLViewModelPtr& viewmodel)
 :	LLView(p),
 	mTentative(FALSE),
 	mIsChrome(FALSE),
+	mTabStop(FALSE),
     mViewModel(viewmodel),
 	mControlVariable(NULL),
 	mEnabledControlVariable(NULL),
diff --git a/indra/llui/lluictrl.h b/indra/llui/lluictrl.h
index 71fd5034df..76dfdf754c 100644
--- a/indra/llui/lluictrl.h
+++ b/indra/llui/lluictrl.h
@@ -141,8 +141,6 @@ public:
 	// LLView interface
 	/*virtual*/ BOOL	setLabelArg( const std::string& key, const LLStringExplicit& text );
 	/*virtual*/ BOOL	isCtrl() const;
-	/*virtual*/ void	setTentative(BOOL b);
-	/*virtual*/ BOOL	getTentative() const;
 	/*virtual*/ void	onMouseEnter(S32 x, S32 y, MASK mask);
 	/*virtual*/ void	onMouseLeave(S32 x, S32 y, MASK mask);
 	/*virtual*/ BOOL	canFocusChildren() const;
@@ -174,6 +172,8 @@ public:
 	void setMakeVisibleControlVariable(LLControlVariable* control);
 	void setMakeInvisibleControlVariable(LLControlVariable* control);
 
+	virtual void	setTentative(BOOL b);
+	virtual BOOL	getTentative() const;
 	virtual void	setValue(const LLSD& value);
 	virtual LLSD	getValue() const;
     /// When two widgets are displaying the same data (e.g. during a skin
diff --git a/indra/llui/llurlentry.cpp b/indra/llui/llurlentry.cpp
index a34ede439a..5680ab8bd4 100644
--- a/indra/llui/llurlentry.cpp
+++ b/indra/llui/llurlentry.cpp
@@ -357,6 +357,12 @@ std::string LLUrlEntryAgent::getTooltip(const std::string &string) const
 	return LLTrans::getString("TooltipAgentUrl");
 }
 
+bool LLUrlEntryAgent::underlineOnHoverOnly(const std::string &string) const
+{
+	std::string url = getUrl(string);
+	return LLStringUtil::endsWith(url, "/about") || LLStringUtil::endsWith(url, "/inspect");
+}
+
 std::string LLUrlEntryAgent::getLabel(const std::string &url, const LLUrlLabelCallback &cb)
 {
 	if (!gCacheName)
@@ -724,6 +730,19 @@ std::string LLUrlEntrySLLabel::getTooltip(const std::string &string) const
 	return LLUrlEntryBase::getTooltip(string);
 }
 
+bool LLUrlEntrySLLabel::underlineOnHoverOnly(const std::string &string) const
+{
+	std::string url = getUrl(string);
+	LLUrlMatch match;
+	if (LLUrlRegistry::instance().findUrl(url, match))
+	{
+		return match.underlineOnHoverOnly();
+	}
+
+	// unrecognized URL? should not happen
+	return LLUrlEntryBase::underlineOnHoverOnly(string);
+}
+
 //
 // LLUrlEntryWorldMap Describes secondlife:///<location> URLs
 //
diff --git a/indra/llui/llurlentry.h b/indra/llui/llurlentry.h
index d868e01aa6..e25eaa7555 100644
--- a/indra/llui/llurlentry.h
+++ b/indra/llui/llurlentry.h
@@ -88,6 +88,9 @@ public:
 	/// is this a match for a URL that should not be hyperlinked?
 	bool isLinkDisabled() const { return mDisabledLink; }
 
+	/// Should this link text be underlined only when mouse is hovered over it?
+	virtual bool underlineOnHoverOnly(const std::string &string) const { return false; }
+
 	virtual LLUUID	getID(const std::string &string) const { return LLUUID::null; }
 
 protected:
@@ -167,6 +170,7 @@ public:
 	/*virtual*/ std::string getLabel(const std::string &url, const LLUrlLabelCallback &cb);
 	/*virtual*/ std::string getTooltip(const std::string &string) const;
 	/*virtual*/ LLUUID	getID(const std::string &string) const;
+	/*virtual*/ bool underlineOnHoverOnly(const std::string &string) const;
 private:
 	void onAgentNameReceived(const LLUUID& id, const std::string& first,
 							 const std::string& last, BOOL is_group);
@@ -269,6 +273,7 @@ public:
 	/*virtual*/ std::string getLabel(const std::string &url, const LLUrlLabelCallback &cb);
 	/*virtual*/ std::string getUrl(const std::string &string) const;
 	/*virtual*/ std::string getTooltip(const std::string &string) const;
+	/*virtual*/ bool underlineOnHoverOnly(const std::string &string) const;
 };
 
 ///
diff --git a/indra/llui/llurlmatch.cpp b/indra/llui/llurlmatch.cpp
index 4ec97091a3..e53b0c4370 100644
--- a/indra/llui/llurlmatch.cpp
+++ b/indra/llui/llurlmatch.cpp
@@ -37,7 +37,8 @@ LLUrlMatch::LLUrlMatch() :
 	mIcon(""),
 	mMenuName(""),
 	mLocation(""),
-	mDisabledLink(false)
+	mDisabledLink(false),
+	mUnderlineOnHoverOnly(false)
 {
 }
 
@@ -45,7 +46,7 @@ void LLUrlMatch::setValues(U32 start, U32 end, const std::string &url,
 						   const std::string &label, const std::string &tooltip,
 						   const std::string &icon, const LLUIColor& color,
 						   const std::string &menu, const std::string &location,
-						   bool disabled_link, const LLUUID& id)
+						   bool disabled_link, const LLUUID& id, bool underline_on_hover_only)
 {
 	mStart = start;
 	mEnd = end;
@@ -58,4 +59,5 @@ void LLUrlMatch::setValues(U32 start, U32 end, const std::string &url,
 	mLocation = location;
 	mDisabledLink = disabled_link;
 	mID = id;
+	mUnderlineOnHoverOnly = underline_on_hover_only;
 }
diff --git a/indra/llui/llurlmatch.h b/indra/llui/llurlmatch.h
index 7a4f0bc10e..d1b2112ee7 100644
--- a/indra/llui/llurlmatch.h
+++ b/indra/llui/llurlmatch.h
@@ -80,12 +80,15 @@ public:
 	/// is this a match for a URL that should not be hyperlinked?
 	bool isLinkDisabled() const { return mDisabledLink; }
 
+	/// Should this link text be underlined only when mouse is hovered over it?
+	bool underlineOnHoverOnly() const { return mUnderlineOnHoverOnly; }
+
 	/// Change the contents of this match object (used by LLUrlRegistry)
 	void setValues(U32 start, U32 end, const std::string &url, const std::string &label,
 	               const std::string &tooltip, const std::string &icon,
 				   const LLUIColor& color, const std::string &menu, 
 				   const std::string &location, bool disabled_link
-				   , const LLUUID& id );
+				   , const LLUUID& id, bool underline_on_hover_only  = false );
 
 	const LLUUID& getID() const { return mID;}
 
@@ -102,6 +105,7 @@ private:
 	LLUUID		mID;
 	LLUIColor	mColor;
 	bool        mDisabledLink;
+	bool		mUnderlineOnHoverOnly;
 };
 
 #endif
diff --git a/indra/llui/llurlregistry.cpp b/indra/llui/llurlregistry.cpp
index 1c103a628b..9d215cf7ef 100644
--- a/indra/llui/llurlregistry.cpp
+++ b/indra/llui/llurlregistry.cpp
@@ -178,7 +178,8 @@ bool LLUrlRegistry::findUrl(const std::string &text, LLUrlMatch &match, const LL
 						match_entry->getMenuName(),
 						match_entry->getLocation(url),
 						match_entry->isLinkDisabled(),
-						match_entry->getID(url));
+						match_entry->getID(url),
+						match_entry->underlineOnHoverOnly(url));
 		return true;
 	}
 
@@ -213,7 +214,8 @@ bool LLUrlRegistry::findUrl(const LLWString &text, LLUrlMatch &match, const LLUr
 						match.getMenuName(),
 						match.getLocation(),
 						match.isLinkDisabled(),
-						match.getID());
+						match.getID(),
+						match.underlineOnHoverOnly());
 		return true;
 	}
 	return false;
diff --git a/indra/llui/llview.cpp b/indra/llui/llview.cpp
index 42ce7b84fe..fe5ef269a9 100644
--- a/indra/llui/llview.cpp
+++ b/indra/llui/llview.cpp
@@ -397,28 +397,40 @@ bool LLCompareByTabOrder::operator() (const LLView* const a, const LLView* const
 	return (a_score == b_score) ? a < b : a_score < b_score;
 }
 
-bool LLView::trueToRoot(const boost::function<bool (const LLView*)>& predicate) const
+BOOL LLView::isInVisibleChain() const
 {
-	const LLView* cur_view = this;
-	while(cur_view)
+	BOOL visible = TRUE;
+
+	const LLView* viewp = this;
+	while(viewp)
 	{
-		if(!predicate(cur_view))
+		if (!viewp->getVisible())
 		{
-			return false;
+			visible = FALSE;
+			break;
 		}
-		cur_view = cur_view->getParent();
+		viewp = viewp->getParent();
 	}
-	return true;
-}
-
-BOOL LLView::isInVisibleChain() const
-{
-	return trueToRoot(&LLView::getVisible);
+	
+	return visible;
 }
 
 BOOL LLView::isInEnabledChain() const
 {
-	return trueToRoot(&LLView::getEnabled);
+	BOOL enabled = TRUE;
+
+	const LLView* viewp = this;
+	while(viewp)
+	{
+		if (!viewp->getEnabled())
+		{
+			enabled = FALSE;
+			break;
+		}
+		viewp = viewp->getParent();
+	}
+	
+	return enabled;
 }
 
 // virtual
@@ -428,17 +440,6 @@ BOOL LLView::canFocusChildren() const
 }
 
 //virtual
-void LLView::setTentative(BOOL b)
-{
-}
-
-//virtual
-BOOL LLView::getTentative() const
-{
-	return FALSE;
-}
-
-//virtual
 void LLView::setEnabled(BOOL enabled)
 {
 	mEnabled = enabled;
@@ -2778,6 +2779,19 @@ LLView::tree_post_iterator_t LLView::endTreeDFSPost()
 	return tree_post_iterator_t();
 }
 
+LLView::bfs_tree_iterator_t LLView::beginTreeBFS() 
+{ 
+	return bfs_tree_iterator_t(this, 
+							boost::bind(boost::mem_fn(&LLView::beginChild), _1), 
+							boost::bind(boost::mem_fn(&LLView::endChild), _1)); 
+}
+
+LLView::bfs_tree_iterator_t LLView::endTreeBFS() 
+{ 
+	// an empty iterator is an "end" iterator
+	return bfs_tree_iterator_t();
+}
+
 
 LLView::root_to_view_iterator_t LLView::beginRootToView()
 {
diff --git a/indra/llui/llview.h b/indra/llui/llview.h
index b9cecb0f84..f7175112bf 100644
--- a/indra/llui/llview.h
+++ b/indra/llui/llview.h
@@ -267,7 +267,6 @@ public:
 	S32 getDefaultTabGroup() const				{ return mDefaultTabGroup; }
 	S32 getLastTabGroup()						{ return mLastTabGroup; }
 
-	bool        trueToRoot(const boost::function<bool (const LLView*)>& predicate) const;
 	BOOL		isInVisibleChain() const;
 	BOOL		isInEnabledChain() const;
 
@@ -283,8 +282,6 @@ public:
 	// children, etc.
 	virtual void deleteAllChildren();
 
-	virtual void	setTentative(BOOL b);
-	virtual BOOL	getTentative() const;
 	void 	setAllChildrenEnabled(BOOL b);
 
 	virtual void	setVisible(BOOL visible);
@@ -351,6 +348,10 @@ public:
 	tree_post_iterator_t beginTreeDFSPost();
 	tree_post_iterator_t endTreeDFSPost();
 
+	typedef LLTreeBFSIter<LLView, child_list_const_iter_t> bfs_tree_iterator_t;
+	bfs_tree_iterator_t beginTreeBFS();
+	bfs_tree_iterator_t endTreeBFS();
+
 
 	typedef LLTreeDownIter<LLView> root_to_view_iterator_t;
 	root_to_view_iterator_t beginRootToView();