Break name tag code out into LLHUDNameTag

Start by duplicating the LLHUDText code, then stripping out
functionality that only needs to exist in one place (like
force-based juggling of name tag positions)

12 files changed, 1322 insertions, 466 deletions

diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 8ad3b2085d..7b306d03ab 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -233,6 +233,7 @@ set(viewer_SOURCE_FILES
     llhudeffecttrail.cpp
     llhudicon.cpp
     llhudmanager.cpp
+    llhudnametag.cpp
     llhudobject.cpp
     llhudrender.cpp
     llhudtext.cpp
@@ -734,6 +735,7 @@ set(viewer_HEADER_FILES
     llhudeffecttrail.h
     llhudicon.h
     llhudmanager.h
+    llhudnametag.h
     llhudobject.h
     llhudrender.h
     llhudtext.h
diff --git a/indra/newview/llhudnametag.cpp b/indra/newview/llhudnametag.cpp
new file mode 100644
index 0000000000..5d4c4571d5
--- /dev/null
+++ b/indra/newview/llhudnametag.cpp
@@ -0,0 +1,1070 @@
+/** 
+ * @file llhudnametag.cpp
+ * @brief Name tags for avatars
+ * @author James Cook
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llhudnametag.h"
+
+#include "llrender.h"
+
+#include "llagent.h"
+#include "llviewercontrol.h"
+#include "llcriticaldamp.h"
+#include "lldrawable.h"
+#include "llfontgl.h"
+#include "llglheaders.h"
+#include "llhudrender.h"
+#include "llui.h"
+#include "llviewercamera.h"
+#include "llviewertexturelist.h"
+#include "llviewerobject.h"
+#include "llvovolume.h"
+#include "llviewerwindow.h"
+#include "llstatusbar.h"
+#include "llmenugl.h"
+#include "pipeline.h"
+#include <boost/tokenizer.hpp>
+
+
+const F32 SPRING_STRENGTH = 0.7f;
+const F32 RESTORATION_SPRING_TIME_CONSTANT = 0.1f;
+const F32 HORIZONTAL_PADDING = 15.f;
+const F32 VERTICAL_PADDING = 12.f;
+const F32 BUFFER_SIZE = 2.f;
+const F32 MIN_EDGE_OVERLAP = 3.f;
+const F32 HUD_TEXT_MAX_WIDTH = 190.f;
+const F32 HUD_TEXT_MAX_WIDTH_NO_BUBBLE = 1000.f;
+const F32 RESIZE_TIME = 0.f;
+const S32 NUM_OVERLAP_ITERATIONS = 10;
+const F32 NEIGHBOR_FORCE_FRACTION = 1.f;
+const F32 POSITION_DAMPING_TC = 0.2f;
+const F32 MAX_STABLE_CAMERA_VELOCITY = 0.1f;
+const F32 LOD_0_SCREEN_COVERAGE = 0.15f;
+const F32 LOD_1_SCREEN_COVERAGE = 0.30f;
+const F32 LOD_2_SCREEN_COVERAGE = 0.40f;
+
+std::set<LLPointer<LLHUDNameTag> > LLHUDNameTag::sTextObjects;
+std::vector<LLPointer<LLHUDNameTag> > LLHUDNameTag::sVisibleTextObjects;
+BOOL LLHUDNameTag::sDisplayText = TRUE ;
+
+bool llhudnametag_further_away::operator()(const LLPointer<LLHUDNameTag>& lhs, const LLPointer<LLHUDNameTag>& rhs) const
+{
+	return lhs->getDistance() > rhs->getDistance();
+}
+
+
+LLHUDNameTag::LLHUDNameTag(const U8 type)
+:	LLHUDObject(type),
+//	mUseBubble(FALSE),
+	mVisibleOffScreen(FALSE),
+	mWidth(0.f),
+	mHeight(0.f),
+	mFontp(LLFontGL::getFontSansSerifSmall()),
+	mBoldFontp(LLFontGL::getFontSansSerifBold()),
+	mMass(1.f),
+	mMaxLines(10),
+	mOffsetY(0),
+	mTextAlignment(ALIGN_TEXT_CENTER),
+	mVertAlignment(ALIGN_VERT_CENTER),
+	mLOD(0),
+	mHidden(FALSE)
+{
+	mColor = LLColor4(1.f, 1.f, 1.f, 1.f);
+	mDoFade = TRUE;
+	mFadeDistance = 8.f;
+	mFadeRange = 4.f;
+	mZCompare = TRUE;
+	mDropShadow = TRUE;
+	mOffscreen = FALSE;
+	mRadius = 0.1f;
+	LLPointer<LLHUDNameTag> ptr(this);
+	sTextObjects.insert(ptr);
+}
+
+LLHUDNameTag::~LLHUDNameTag()
+{
+}
+
+
+BOOL LLHUDNameTag::lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3& intersection, BOOL debug_render)
+{
+	if (!mVisible || mHidden)
+	{
+		return FALSE;
+	}
+
+	// don't pick text that isn't bound to a viewerobject
+	if (!mSourceObject || mSourceObject->mDrawable.isNull())
+	{
+		return FALSE;
+	}
+	
+	F32 alpha_factor = 1.f;
+	LLColor4 text_color = mColor;
+	if (mDoFade)
+	{
+		if (mLastDistance > mFadeDistance)
+		{
+			alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
+			text_color.mV[3] = text_color.mV[3]*alpha_factor;
+		}
+	}
+	if (text_color.mV[3] < 0.01f)
+	{
+		return FALSE;
+	}
+
+	mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
+
+	// scale screen size of borders down
+	//RN: for now, text on hud objects is never occluded
+
+	LLVector3 x_pixel_vec;
+	LLVector3 y_pixel_vec;
+	
+	LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
+
+	LLVector3 width_vec = mWidth * x_pixel_vec;
+	LLVector3 height_vec = mHeight * y_pixel_vec;
+	
+	LLCoordGL screen_pos;
+	LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE);
+
+	LLVector2 screen_offset;
+	screen_offset = updateScreenPos(mPositionOffset);
+	
+	LLVector3 render_position = mPositionAgent  
+			+ (x_pixel_vec * screen_offset.mV[VX])
+			+ (y_pixel_vec * screen_offset.mV[VY]);
+
+
+	//if (mUseBubble)
+	{
+		LLVector3 bg_pos = render_position
+			+ (F32)mOffsetY * y_pixel_vec
+			- (width_vec / 2.f)
+			- (height_vec);
+		//LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
+
+		LLVector3 v[] = 
+		{
+			bg_pos,
+			bg_pos + width_vec,
+			bg_pos + width_vec + height_vec,
+			bg_pos + height_vec,
+		};
+
+		if (debug_render)
+		{
+			gGL.begin(LLRender::LINE_STRIP);
+			gGL.vertex3fv(v[0].mV);
+			gGL.vertex3fv(v[1].mV);
+			gGL.vertex3fv(v[2].mV);
+			gGL.vertex3fv(v[3].mV);
+			gGL.vertex3fv(v[0].mV);
+			gGL.vertex3fv(v[2].mV);
+			gGL.end();
+		}
+
+		LLVector3 dir = end-start;
+		F32 t = 0.f;
+
+		if (LLTriangleRayIntersect(v[0], v[1], v[2], start, dir, NULL, NULL, &t, FALSE) ||
+			LLTriangleRayIntersect(v[2], v[3], v[0], start, dir, NULL, NULL, &t, FALSE) )
+		{
+			if (t <= 1.f)
+			{
+				intersection = start + dir*t;
+				return TRUE;
+			}
+		}
+	}
+
+	return FALSE;
+}
+
+void LLHUDNameTag::render()
+{
+	if (sDisplayText)
+	{
+		LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
+		renderText(FALSE);
+	}
+}
+
+void LLHUDNameTag::renderForSelect()
+{
+	LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
+	renderText(TRUE);
+}
+
+void LLHUDNameTag::renderText(BOOL for_select)
+{
+	if (!mVisible || mHidden)
+	{
+		return;
+	}
+
+	// don't pick text that isn't bound to a viewerobject
+	if (for_select && 
+		(!mSourceObject || mSourceObject->mDrawable.isNull()))
+	{
+		return;
+	}
+	
+	if (for_select)
+	{
+		gGL.getTexUnit(0)->disable();
+	}
+	else
+	{
+		gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
+	}
+
+	LLGLState gls_blend(GL_BLEND, for_select ? FALSE : TRUE);
+	LLGLState gls_alpha(GL_ALPHA_TEST, for_select ? FALSE : TRUE);
+	
+	LLColor4 shadow_color(0.f, 0.f, 0.f, 1.f);
+	F32 alpha_factor = 1.f;
+	LLColor4 text_color = mColor;
+	if (mDoFade)
+	{
+		if (mLastDistance > mFadeDistance)
+		{
+			alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
+			text_color.mV[3] = text_color.mV[3]*alpha_factor;
+		}
+	}
+	if (text_color.mV[3] < 0.01f)
+	{
+		return;
+	}
+	shadow_color.mV[3] = text_color.mV[3];
+
+	mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
+
+	// *TODO: cache this image
+	LLUIImagePtr imagep = LLUI::getUIImage("Rounded_Square");
+
+	// *TODO: make this a per-text setting
+	LLColor4 bg_color = LLUIColorTable::instance().getColor("BackgroundChatColor");
+	bg_color.setAlpha(gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor);
+
+	const S32 border_height = 16;
+	const S32 border_width = 16;
+
+	// *TODO move this into helper function
+	F32 border_scale = 1.f;
+
+	if (border_height * 2 > mHeight)
+	{
+		border_scale = (F32)mHeight / ((F32)border_height * 2.f);
+	}
+	if (border_width * 2 > mWidth)
+	{
+		border_scale = llmin(border_scale, (F32)mWidth / ((F32)border_width * 2.f));
+	}
+
+	// scale screen size of borders down
+	//RN: for now, text on hud objects is never occluded
+
+	LLVector3 x_pixel_vec;
+	LLVector3 y_pixel_vec;
+	
+	LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
+
+	LLVector2 border_scale_vec((F32)border_width / (F32)imagep->getTextureWidth(), (F32)border_height / (F32)imagep->getTextureHeight());
+	LLVector3 width_vec = mWidth * x_pixel_vec;
+	LLVector3 height_vec = mHeight * y_pixel_vec;
+	LLVector3 scaled_border_width = (F32)llfloor(border_scale * (F32)border_width) * x_pixel_vec;
+	LLVector3 scaled_border_height = (F32)llfloor(border_scale * (F32)border_height) * y_pixel_vec;
+
+	mRadius = (width_vec + height_vec).magVec() * 0.5f;
+
+	LLCoordGL screen_pos;
+	LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE);
+
+	LLVector2 screen_offset;
+//	if (!mUseBubble)
+//	{
+//		screen_offset = mPositionOffset;
+//	}
+//	else
+//	{
+		screen_offset = updateScreenPos(mPositionOffset);
+//	}
+
+	LLVector3 render_position = mPositionAgent  
+			+ (x_pixel_vec * screen_offset.mV[VX])
+			+ (y_pixel_vec * screen_offset.mV[VY]);
+
+//	if (mUseBubble)
+	{
+		LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
+		LLUI::pushMatrix();
+		{
+			LLVector3 bg_pos = render_position
+				+ (F32)mOffsetY * y_pixel_vec
+				- (width_vec / 2.f)
+				- (height_vec);
+			LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
+
+			if (for_select)
+			{
+				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+				S32 name = mSourceObject->mGLName;
+				LLColor4U coloru((U8)(name >> 16), (U8)(name >> 8), (U8)name);
+				gGL.color4ubv(coloru.mV);
+				gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec);
+				LLUI::popMatrix();
+				return;
+			}
+			else
+			{
+				gGL.getTexUnit(0)->bind(imagep->getImage());
+				
+				gGL.color4fv(bg_color.mV);
+				gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec);
+		
+				if ( mLabelSegments.size())
+				{
+					LLUI::pushMatrix();
+					{
+						gGL.color4f(text_color.mV[VX], text_color.mV[VY], text_color.mV[VZ], gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor);
+						LLVector3 label_height = (mFontp->getLineHeight() * mLabelSegments.size() + (VERTICAL_PADDING / 3.f)) * y_pixel_vec;
+						LLVector3 label_offset = height_vec - label_height;
+						LLUI::translate(label_offset.mV[VX], label_offset.mV[VY], label_offset.mV[VZ]);
+						gl_segmented_rect_3d_tex_top(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, label_height);
+					}
+					LLUI::popMatrix();
+				}
+			}
+
+			BOOL outside_width = llabs(mPositionOffset.mV[VX]) > mWidth * 0.5f;
+			BOOL outside_height = llabs(mPositionOffset.mV[VY] + (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.5f : 0.f)) > mHeight * (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.75f : 0.5f);
+
+			// draw line segments pointing to parent object
+			if (!mOffscreen && (outside_width || outside_height))
+			{
+				LLUI::pushMatrix();
+				{
+					gGL.color4fv(bg_color.mV);
+					LLVector3 target_pos = -1.f * (mPositionOffset.mV[VX] * x_pixel_vec + mPositionOffset.mV[VY] * y_pixel_vec);
+					target_pos += (width_vec / 2.f);
+					target_pos += mVertAlignment == ALIGN_VERT_CENTER ? (height_vec * 0.5f) : LLVector3::zero;
+					target_pos -= 3.f * x_pixel_vec;
+					target_pos -= 6.f * y_pixel_vec;
+					LLUI::translate(target_pos.mV[VX], target_pos.mV[VY], target_pos.mV[VZ]);
+					gl_segmented_rect_3d_tex(border_scale_vec, 3.f * x_pixel_vec, 3.f * y_pixel_vec, 6.f * x_pixel_vec, 6.f * y_pixel_vec);	
+				}
+				LLUI::popMatrix();
+
+				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+				LLGLDepthTest gls_depth(mZCompare ? GL_TRUE : GL_FALSE, GL_FALSE);
+				
+				LLVector3 box_center_offset;
+				box_center_offset = (width_vec * 0.5f) + (height_vec * 0.5f);
+				LLUI::translate(box_center_offset.mV[VX], box_center_offset.mV[VY], box_center_offset.mV[VZ]);
+				gGL.color4fv(bg_color.mV);
+				LLUI::setLineWidth(2.0);
+				gGL.begin(LLRender::LINES);
+				{
+					if (outside_width)
+					{
+						LLVector3 vert;
+						// draw line in x then y
+						if (mPositionOffset.mV[VX] < 0.f)
+						{
+							// start at right edge
+							vert = width_vec * 0.5f;
+							gGL.vertex3fv(vert.mV);
+						}
+						else
+						{
+							// start at left edge
+							vert = width_vec * -0.5f;
+							gGL.vertex3fv(vert.mV);
+						}
+						vert = -mPositionOffset.mV[VX] * x_pixel_vec;
+						gGL.vertex3fv(vert.mV);
+						gGL.vertex3fv(vert.mV);
+						vert -= mPositionOffset.mV[VY] * y_pixel_vec;
+						vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
+						gGL.vertex3fv(vert.mV);
+					}
+					else
+					{
+						LLVector3 vert;
+						// draw line in y then x
+						if (mPositionOffset.mV[VY] < 0.f)
+						{
+							// start at top edge
+							vert = (height_vec * 0.5f) - (mPositionOffset.mV[VX] * x_pixel_vec);
+							gGL.vertex3fv(vert.mV);
+						}
+						else
+						{
+							// start at bottom edge
+							vert = (height_vec * -0.5f)  - (mPositionOffset.mV[VX] * x_pixel_vec);
+							gGL.vertex3fv(vert.mV);
+						}
+						vert = -mPositionOffset.mV[VY] * y_pixel_vec - mPositionOffset.mV[VX] * x_pixel_vec;
+						vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
+						gGL.vertex3fv(vert.mV);
+					}
+				}
+				gGL.end();
+				LLUI::setLineWidth(1.0);
+
+			}
+		}
+		LLUI::popMatrix();
+	}
+
+	F32 y_offset = (F32)mOffsetY;
+		
+	// Render label
+	{
+		gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
+
+		for(std::vector<LLHUDTextSegment>::iterator segment_iter = mLabelSegments.begin();
+			segment_iter != mLabelSegments.end(); ++segment_iter )
+		{
+			// Label segments use default font
+			const LLFontGL* fontp = (segment_iter->mStyle == LLFontGL::BOLD) ? mBoldFontp : mFontp;
+			y_offset -= fontp->getLineHeight();
+
+			F32 x_offset;
+			if (mTextAlignment == ALIGN_TEXT_CENTER)
+			{
+				x_offset = -0.5f*segment_iter->getWidth(fontp);
+			}
+			else // ALIGN_LEFT
+			{
+				x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f);
+			}
+
+			LLColor4 label_color(0.f, 0.f, 0.f, 1.f);
+			label_color.mV[VALPHA] = alpha_factor;
+			hud_render_text(segment_iter->getText(), render_position, *fontp, segment_iter->mStyle, LLFontGL::NO_SHADOW, x_offset, y_offset, label_color, FALSE);
+		}
+	}
+
+	// Render text
+	{
+		// -1 mMaxLines means unlimited lines.
+		S32 start_segment;
+		S32 max_lines = getMaxLines();
+
+		if (max_lines < 0) 
+		{
+			start_segment = 0;
+		}
+		else 
+		{
+			start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines);
+		}
+
+		for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin() + start_segment;
+			 segment_iter != mTextSegments.end(); ++segment_iter )
+		{
+			const LLFontGL* fontp = segment_iter->mFont;
+			y_offset -= fontp->getLineHeight();
+
+			U8 style = segment_iter->mStyle;
+			LLFontGL::ShadowType shadow = LLFontGL::NO_SHADOW;
+			if (mDropShadow)
+			{
+				shadow = LLFontGL::DROP_SHADOW;
+			}
+	
+			F32 x_offset;
+			if (mTextAlignment== ALIGN_TEXT_CENTER)
+			{
+				x_offset = -0.5f*segment_iter->getWidth(fontp);
+			}
+			else // ALIGN_LEFT
+			{
+				x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f);
+			}
+
+			text_color = segment_iter->mColor;
+			text_color.mV[VALPHA] *= alpha_factor;
+
+			hud_render_text(segment_iter->getText(), render_position, *fontp, style, shadow, x_offset, y_offset, text_color, FALSE);
+		}
+	}
+	/// Reset the default color to white.  The renderer expects this to be the default. 
+	gGL.color4f(1.0f, 1.0f, 1.0f, 1.0f);
+	if (for_select)
+	{
+		gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
+	}
+}
+
+void LLHUDNameTag::setString(const std::string &text_utf8)
+{
+	mTextSegments.clear();
+	addLine(text_utf8, mColor);
+}
+
+void LLHUDNameTag::clearString()
+{
+	mTextSegments.clear();
+}
+
+
+void LLHUDNameTag::addLine(const std::string &text_utf8,
+						const LLColor4& color,
+						const LLFontGL::StyleFlags style,
+						const LLFontGL* font)
+{
+	LLWString wline = utf8str_to_wstring(text_utf8);
+	if (!wline.empty())
+	{
+		// use default font for segment if custom font not specified
+		if (!font)
+		{
+			font = mFontp;
+		}
+		typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
+		LLWString seps(utf8str_to_wstring("\r\n"));
+		boost::char_separator<llwchar> sep(seps.c_str());
+
+		tokenizer tokens(wline, sep);
+		tokenizer::iterator iter = tokens.begin();
+
+		while (iter != tokens.end())
+		{
+			U32 line_length = 0;
+			do	
+			{
+				F32 max_pixels = HUD_TEXT_MAX_WIDTH;
+				S32 segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels, wline.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
+				LLHUDTextSegment segment(iter->substr(line_length, segment_length), style, color, font);
+				mTextSegments.push_back(segment);
+				line_length += segment_length;
+			}
+			while (line_length != iter->size());
+			++iter;
+		}
+	}
+}
+
+void LLHUDNameTag::setLabel(const std::string &label_utf8)
+{
+	mLabelSegments.clear();
+	addLabel(label_utf8);
+}
+
+void LLHUDNameTag::addLabel(const std::string& label_utf8)
+{
+	LLWString wstr = utf8string_to_wstring(label_utf8);
+	if (!wstr.empty())
+	{
+		LLWString seps(utf8str_to_wstring("\r\n"));
+		LLWString empty;
+
+		typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
+		boost::char_separator<llwchar> sep(seps.c_str(), empty.c_str(), boost::keep_empty_tokens);
+
+		tokenizer tokens(wstr, sep);
+		tokenizer::iterator iter = tokens.begin();
+
+		while (iter != tokens.end())
+		{
+			U32 line_length = 0;
+			do	
+			{
+				S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(), 
+					HUD_TEXT_MAX_WIDTH, wstr.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
+				LLHUDTextSegment segment(iter->substr(line_length, segment_length), LLFontGL::NORMAL, mColor, mFontp);
+				mLabelSegments.push_back(segment);
+				line_length += segment_length;
+			}
+			while (line_length != iter->size());
+			++iter;
+		}
+	}
+}
+
+void LLHUDNameTag::setDropShadow(const BOOL do_shadow)
+{
+	mDropShadow = do_shadow;
+}
+
+void LLHUDNameTag::setZCompare(const BOOL zcompare)
+{
+	mZCompare = zcompare;
+}
+
+void LLHUDNameTag::setFont(const LLFontGL* font)
+{
+	mFontp = font;
+}
+
+
+void LLHUDNameTag::setColor(const LLColor4 &color)
+{
+	mColor = color;
+	for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin();
+		 segment_iter != mTextSegments.end(); ++segment_iter )
+	{
+		segment_iter->mColor = color;
+	}
+}
+
+void LLHUDNameTag::setAlpha(F32 alpha)
+{
+	mColor.mV[VALPHA] = alpha;
+	for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin();
+		 segment_iter != mTextSegments.end(); ++segment_iter )
+	{
+		segment_iter->mColor.mV[VALPHA] = alpha;
+	}
+}
+
+
+void LLHUDNameTag::setDoFade(const BOOL do_fade)
+{
+	mDoFade = do_fade;
+}
+
+void LLHUDNameTag::updateVisibility()
+{
+	if (mSourceObject)
+	{
+		mSourceObject->updateText();
+	}
+	
+	mPositionAgent = gAgent.getPosAgentFromGlobal(mPositionGlobal);
+
+	if (!mSourceObject)
+	{
+		//llwarns << "LLHUDNameTag::updateScreenPos -- mSourceObject is NULL!" << llendl;
+		mVisible = TRUE;
+		sVisibleTextObjects.push_back(LLPointer<LLHUDNameTag> (this));
+		return;
+	}
+
+	// Not visible if parent object is dead
+	if (mSourceObject->isDead())
+	{
+		mVisible = FALSE;
+		return;
+	}
+
+	// push text towards camera by radius of object, but not past camera
+	LLVector3 vec_from_camera = mPositionAgent - LLViewerCamera::getInstance()->getOrigin();
+	LLVector3 dir_from_camera = vec_from_camera;
+	dir_from_camera.normVec();
+
+	if (dir_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= 0.f)
+	{ //text is behind camera, don't render
+		mVisible = FALSE;
+		return;
+	}
+		
+	if (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= LLViewerCamera::getInstance()->getNear() + 0.1f + mSourceObject->getVObjRadius())
+	{
+		mPositionAgent = LLViewerCamera::getInstance()->getOrigin() + vec_from_camera * ((LLViewerCamera::getInstance()->getNear() + 0.1f) / (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis()));
+	}
+	else
+	{
+		mPositionAgent -= dir_from_camera * mSourceObject->getVObjRadius();
+	}
+
+	mLastDistance = (mPositionAgent - LLViewerCamera::getInstance()->getOrigin()).magVec();
+
+	if (mLOD >= 3 || !mTextSegments.size() || (mDoFade && (mLastDistance > mFadeDistance + mFadeRange)))
+	{
+		mVisible = FALSE;
+		return;
+	}
+
+	LLVector3 x_pixel_vec;
+	LLVector3 y_pixel_vec;
+
+	LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
+
+	LLVector3 render_position = mPositionAgent + 			
+			(x_pixel_vec * mPositionOffset.mV[VX]) +
+			(y_pixel_vec * mPositionOffset.mV[VY]);
+
+	mOffscreen = FALSE;
+	if (!LLViewerCamera::getInstance()->sphereInFrustum(render_position, mRadius))
+	{
+		if (!mVisibleOffScreen)
+		{
+			mVisible = FALSE;
+			return;
+		}
+		else
+		{
+			mOffscreen = TRUE;
+		}
+	}
+
+	mVisible = TRUE;
+	sVisibleTextObjects.push_back(LLPointer<LLHUDNameTag> (this));
+}
+
+LLVector2 LLHUDNameTag::updateScreenPos(LLVector2 &offset)
+{
+	LLCoordGL screen_pos;
+	LLVector2 screen_pos_vec;
+	LLVector3 x_pixel_vec;
+	LLVector3 y_pixel_vec;
+	LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
+	LLVector3 world_pos = mPositionAgent + (offset.mV[VX] * x_pixel_vec) + (offset.mV[VY] * y_pixel_vec);
+	if (!LLViewerCamera::getInstance()->projectPosAgentToScreen(world_pos, screen_pos, FALSE) && mVisibleOffScreen)
+	{
+		// bubble off-screen, so find a spot for it along screen edge
+		LLViewerCamera::getInstance()->projectPosAgentToScreenEdge(world_pos, screen_pos);
+	}
+
+	screen_pos_vec.setVec((F32)screen_pos.mX, (F32)screen_pos.mY);
+
+	LLRect world_rect = gViewerWindow->getWorldViewRectScaled();
+	S32 bottom = world_rect.mBottom + STATUS_BAR_HEIGHT;
+
+	LLVector2 screen_center;
+	screen_center.mV[VX] = llclamp((F32)screen_pos_vec.mV[VX], (F32)world_rect.mLeft + mWidth * 0.5f, (F32)world_rect.mRight - mWidth * 0.5f);
+
+	if(mVertAlignment == ALIGN_VERT_TOP)
+	{
+		screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY], 
+			(F32)bottom, 
+			(F32)world_rect.mTop - mHeight - (F32)MENU_BAR_HEIGHT);
+		mSoftScreenRect.setLeftTopAndSize(screen_center.mV[VX] - (mWidth + BUFFER_SIZE) * 0.5f, 
+			screen_center.mV[VY] + (mHeight + BUFFER_SIZE), mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE);
+	}
+	else
+	{
+		screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY], 
+			(F32)bottom + mHeight * 0.5f, 
+			(F32)world_rect.mTop - mHeight * 0.5f - (F32)MENU_BAR_HEIGHT);
+		mSoftScreenRect.setCenterAndSize(screen_center.mV[VX], screen_center.mV[VY], mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE);
+	}
+
+	return offset + (screen_center - LLVector2((F32)screen_pos.mX, (F32)screen_pos.mY));
+}
+
+void LLHUDNameTag::updateSize()
+{
+	F32 height = 0.f;
+	F32 width = 0.f;
+
+	S32 max_lines = getMaxLines();
+	//S32 lines = (max_lines < 0) ? (S32)mTextSegments.size() : llmin((S32)mTextSegments.size(), max_lines);
+	//F32 height = (F32)mFontp->getLineHeight() * (lines + mLabelSegments.size());
+
+	S32 start_segment;
+	if (max_lines < 0) start_segment = 0;
+	else start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines);
+
+	std::vector<LLHUDTextSegment>::iterator iter = mTextSegments.begin() + start_segment;
+	while (iter != mTextSegments.end())
+	{
+		const LLFontGL* fontp = iter->mFont;
+		height += fontp->getLineHeight();
+		width = llmax(width, llmin(iter->getWidth(fontp), HUD_TEXT_MAX_WIDTH));
+		++iter;
+	}
+
+	iter = mLabelSegments.begin();
+	while (iter != mLabelSegments.end())
+	{
+		height += mFontp->getLineHeight();
+		width = llmax(width, llmin(iter->getWidth(mFontp), HUD_TEXT_MAX_WIDTH));
+		++iter;
+	}
+	
+	if (width == 0.f)
+	{
+		return;
+	}
+
+	width += HORIZONTAL_PADDING;
+	height += VERTICAL_PADDING;
+
+	if (!mResizeTimer.getStarted() && (width != mWidth || height != mHeight))
+	{
+		mResizeTimer.start();
+	}
+
+	// *NOTE: removed logic which did a divide by zero.
+	F32 u = 1.f;//llclamp(mResizeTimer.getElapsedTimeF32() / RESIZE_TIME, 0.f, 1.f);
+	if (u == 1.f)
+	{
+		mResizeTimer.stop();
+	}
+
+	mWidth = llmax(width, lerp(mWidth, (F32)width, u));
+	mHeight = llmax(height, lerp(mHeight, (F32)height, u));
+}
+
+void LLHUDNameTag::updateAll()
+{
+	// iterate over all text objects, calculate their restoration forces,
+	// and add them to the visible set if they are on screen and close enough
+	sVisibleTextObjects.clear();
+	
+	TextObjectIterator text_it;
+	for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
+	{
+		LLHUDNameTag* textp = (*text_it);
+		textp->mTargetPositionOffset.clearVec();
+		textp->updateSize();
+		textp->updateVisibility();
+	}
+	
+	// sort back to front for rendering purposes
+	std::sort(sVisibleTextObjects.begin(), sVisibleTextObjects.end(), llhudnametag_further_away());
+
+	// iterate from front to back, and set LOD based on current screen coverage
+	F32 screen_area = (F32)(gViewerWindow->getWindowWidthScaled() * gViewerWindow->getWindowHeightScaled());
+	F32 current_screen_area = 0.f;
+	std::vector<LLPointer<LLHUDNameTag> >::reverse_iterator r_it;
+	for (r_it = sVisibleTextObjects.rbegin(); r_it != sVisibleTextObjects.rend(); ++r_it)
+	{
+		LLHUDNameTag* textp = (*r_it);
+//		if (textp->mUseBubble)
+//		{
+			if (current_screen_area / screen_area > LOD_2_SCREEN_COVERAGE)
+			{
+				textp->setLOD(3);
+			}
+			else if (current_screen_area / screen_area > LOD_1_SCREEN_COVERAGE)
+			{
+				textp->setLOD(2);
+			}
+			else if (current_screen_area / screen_area > LOD_0_SCREEN_COVERAGE)
+			{
+				textp->setLOD(1);
+			}
+			else
+			{
+				textp->setLOD(0);
+			}
+			textp->updateSize();
+			// find on-screen position and initialize collision rectangle
+			textp->mTargetPositionOffset = textp->updateScreenPos(LLVector2::zero);
+			current_screen_area += (F32)(textp->mSoftScreenRect.getWidth() * textp->mSoftScreenRect.getHeight());
+//		}
+	}
+
+	LLStat* camera_vel_stat = LLViewerCamera::getInstance()->getVelocityStat();
+	F32 camera_vel = camera_vel_stat->getCurrent();
+	if (camera_vel > MAX_STABLE_CAMERA_VELOCITY)
+	{
+		return;
+	}
+
+	VisibleTextObjectIterator src_it;
+
+	for (S32 i = 0; i < NUM_OVERLAP_ITERATIONS; i++)
+	{
+		for (src_it = sVisibleTextObjects.begin(); src_it != sVisibleTextObjects.end(); ++src_it)
+		{
+			LLHUDNameTag* src_textp = (*src_it);
+
+//			if (!src_textp->mUseBubble)
+//			{
+//				continue;
+//			}
+			VisibleTextObjectIterator dst_it = src_it;
+			++dst_it;
+			for (; dst_it != sVisibleTextObjects.end(); ++dst_it)
+			{
+				LLHUDNameTag* dst_textp = (*dst_it);
+
+//				if (!dst_textp->mUseBubble)
+//				{
+//					continue;
+//				}
+				if (src_textp->mSoftScreenRect.overlaps(dst_textp->mSoftScreenRect))
+				{
+					LLRectf intersect_rect = src_textp->mSoftScreenRect;
+					intersect_rect.intersectWith(dst_textp->mSoftScreenRect);
+					intersect_rect.stretch(-BUFFER_SIZE * 0.5f);
+					
+					F32 src_center_x = src_textp->mSoftScreenRect.getCenterX();
+					F32 src_center_y = src_textp->mSoftScreenRect.getCenterY();
+					F32 dst_center_x = dst_textp->mSoftScreenRect.getCenterX();
+					F32 dst_center_y = dst_textp->mSoftScreenRect.getCenterY();
+					F32 intersect_center_x = intersect_rect.getCenterX();
+					F32 intersect_center_y = intersect_rect.getCenterY();
+					LLVector2 force = lerp(LLVector2(dst_center_x - intersect_center_x, dst_center_y - intersect_center_y), 
+										LLVector2(intersect_center_x - src_center_x, intersect_center_y - src_center_y),
+										0.5f);
+					force.setVec(dst_center_x - src_center_x, dst_center_y - src_center_y);
+					force.normVec();
+
+					LLVector2 src_force = -1.f * force;
+					LLVector2 dst_force = force;
+
+					LLVector2 force_strength;
+					F32 src_mult = dst_textp->mMass / (dst_textp->mMass + src_textp->mMass); 
+					F32 dst_mult = 1.f - src_mult;
+					F32 src_aspect_ratio = src_textp->mSoftScreenRect.getWidth() / src_textp->mSoftScreenRect.getHeight();
+					F32 dst_aspect_ratio = dst_textp->mSoftScreenRect.getWidth() / dst_textp->mSoftScreenRect.getHeight();
+					src_force.mV[VY] *= src_aspect_ratio;
+					src_force.normVec();
+					dst_force.mV[VY] *= dst_aspect_ratio;
+					dst_force.normVec();
+
+					src_force.mV[VX] *= llmin(intersect_rect.getWidth() * src_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
+					src_force.mV[VY] *= llmin(intersect_rect.getHeight() * src_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
+					dst_force.mV[VX] *=  llmin(intersect_rect.getWidth() * dst_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
+					dst_force.mV[VY] *=  llmin(intersect_rect.getHeight() * dst_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
+					
+					src_textp->mTargetPositionOffset += src_force;
+					dst_textp->mTargetPositionOffset += dst_force;
+					src_textp->mTargetPositionOffset = src_textp->updateScreenPos(src_textp->mTargetPositionOffset);
+					dst_textp->mTargetPositionOffset = dst_textp->updateScreenPos(dst_textp->mTargetPositionOffset);
+				}
+			}
+		}
+	}
+
+	VisibleTextObjectIterator this_object_it;
+	for (this_object_it = sVisibleTextObjects.begin(); this_object_it != sVisibleTextObjects.end(); ++this_object_it)
+	{
+//		if (!(*this_object_it)->mUseBubble)
+//		{
+//			continue;
+//		}
+		(*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLCriticalDamp::getInterpolant(POSITION_DAMPING_TC));
+	}
+}
+
+void LLHUDNameTag::setLOD(S32 lod)
+{
+	mLOD = lod;
+	//RN: uncomment this to visualize LOD levels
+	//std::string label = llformat("%d", lod);
+	//setLabel(label);
+}
+
+S32 LLHUDNameTag::getMaxLines()
+{
+	switch(mLOD)
+	{
+	case 0:
+		return mMaxLines;
+	case 1:
+		return mMaxLines > 0 ? mMaxLines / 2 : 5;
+	case 2:
+		return mMaxLines > 0 ? mMaxLines / 3 : 2;
+	default:
+		// label only
+		return 0;
+	}
+}
+
+void LLHUDNameTag::markDead()
+{
+	sTextObjects.erase(LLPointer<LLHUDNameTag>(this));
+	LLHUDObject::markDead();
+}
+
+void LLHUDNameTag::shiftAll(const LLVector3& offset)
+{
+	TextObjectIterator text_it;
+	for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
+	{
+		LLHUDNameTag *textp = text_it->get();
+		textp->shift(offset);
+	}
+}
+
+void LLHUDNameTag::shift(const LLVector3& offset)
+{
+	mPositionAgent += offset;
+}
+
+//static 
+void LLHUDNameTag::addPickable(std::set<LLViewerObject*> &pick_list)
+{
+	//this might put an object on the pick list a second time, overriding it's mGLName, which is ok
+	// *FIX: we should probably cull against pick frustum
+	VisibleTextObjectIterator text_it;
+	for (text_it = sVisibleTextObjects.begin(); text_it != sVisibleTextObjects.end(); ++text_it)
+	{
+//		if (!(*text_it)->mUseBubble)
+//		{
+//			continue;
+//		}
+		pick_list.insert((*text_it)->mSourceObject);
+	}
+}
+
+//static
+// called when UI scale changes, to flush font width caches
+void LLHUDNameTag::reshape()
+{
+	TextObjectIterator text_it;
+	for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
+	{
+		LLHUDNameTag* textp = (*text_it);
+		std::vector<LLHUDTextSegment>::iterator segment_iter; 
+		for (segment_iter = textp->mTextSegments.begin();
+			 segment_iter != textp->mTextSegments.end(); ++segment_iter )
+		{
+			segment_iter->clearFontWidthMap();
+		}
+		for(segment_iter = textp->mLabelSegments.begin();
+			segment_iter != textp->mLabelSegments.end(); ++segment_iter )
+		{
+			segment_iter->clearFontWidthMap();
+		}		
+	}
+}
+
+//============================================================================
+
+F32 LLHUDNameTag::LLHUDTextSegment::getWidth(const LLFontGL* font)
+{
+	std::map<const LLFontGL*, F32>::iterator iter = mFontWidthMap.find(font);
+	if (iter != mFontWidthMap.end())
+	{
+		return iter->second;
+	}
+	else
+	{
+		F32 width = font->getWidthF32(mText.c_str());
+		mFontWidthMap[font] = width;
+		return width;
+	}
+}
diff --git a/indra/newview/llhudnametag.h b/indra/newview/llhudnametag.h
new file mode 100644
index 0000000000..56b17bef6b
--- /dev/null
+++ b/indra/newview/llhudnametag.h
@@ -0,0 +1,195 @@
+/** 
+ * @file llhudnametag.h
+ * @brief Name tags for avatars
+ * @author James Cook
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LLHUDNAMETAG_H
+#define LLHUDNAMETAG_H
+
+#include "llpointer.h"
+
+#include "llhudobject.h"
+#include "v4color.h"
+#include "v4coloru.h"
+#include "v2math.h"
+#include "llrect.h"
+#include "llframetimer.h"
+#include "llfontgl.h"
+#include <set>
+#include <vector>
+
+class LLDrawable;
+class LLHUDNameTag;
+
+struct llhudnametag_further_away
+{
+	bool operator()(const LLPointer<LLHUDNameTag>& lhs, const LLPointer<LLHUDNameTag>& rhs) const;
+};
+
+class LLHUDNameTag : public LLHUDObject
+{
+protected:
+	class LLHUDTextSegment
+	{
+	public:
+		LLHUDTextSegment(const LLWString& text, const LLFontGL::StyleFlags style, const LLColor4& color, const LLFontGL* font)
+		:	mColor(color),
+			mStyle(style),
+			mText(text),
+			mFont(font)
+		{}
+		F32 getWidth(const LLFontGL* font);
+		const LLWString& getText() const { return mText; }
+		void clearFontWidthMap() { mFontWidthMap.clear(); }
+		
+		LLColor4				mColor;
+		LLFontGL::StyleFlags	mStyle;
+		const LLFontGL*			mFont;
+	private:
+		LLWString				mText;
+		std::map<const LLFontGL*, F32> mFontWidthMap;
+	};
+
+public:
+	typedef enum e_text_alignment
+	{
+		ALIGN_TEXT_LEFT,
+		ALIGN_TEXT_CENTER
+	} ETextAlignment;
+
+	typedef enum e_vert_alignment
+	{
+		ALIGN_VERT_TOP,
+		ALIGN_VERT_CENTER
+	} EVertAlignment;
+
+public:
+	// Set entire string, eliminating existing lines
+	void setString(const std::string& text_utf8);
+
+	void clearString();
+
+	// Add text a line at a time, allowing custom formatting
+	void addLine(const std::string &text_utf8, const LLColor4& color, const LLFontGL::StyleFlags style = LLFontGL::NORMAL, const LLFontGL* font = NULL);
+
+	// For bubble chat, set the part above the chat text
+	void setLabel(const std::string& label_utf8);
+	void addLabel(const std::string& label_utf8);
+
+	void setDropShadow(const BOOL do_shadow);
+
+	// Sets the default font for lines with no font specified
+	void setFont(const LLFontGL* font);
+	void setColor(const LLColor4 &color);
+	void setAlpha(F32 alpha);
+	void setZCompare(const BOOL zcompare);
+	void setDoFade(const BOOL do_fade);
+	void setVisibleOffScreen(BOOL visible) { mVisibleOffScreen = visible; }
+	
+	// mMaxLines of -1 means unlimited lines.
+	void setMaxLines(S32 max_lines) { mMaxLines = max_lines; }
+	void setFadeDistance(F32 fade_distance, F32 fade_range) { mFadeDistance = fade_distance; mFadeRange = fade_range; }
+	void updateVisibility();
+	LLVector2 updateScreenPos(LLVector2 &offset_target);
+	void updateSize();
+	void setMass(F32 mass) { mMass = llmax(0.1f, mass); }
+	void setTextAlignment(ETextAlignment alignment) { mTextAlignment = alignment; }
+	void setVertAlignment(EVertAlignment alignment) { mVertAlignment = alignment; }
+	/*virtual*/ void markDead();
+	friend class LLHUDObject;
+	/*virtual*/ F32 getDistance() const { return mLastDistance; }
+	//void setUseBubble(BOOL use_bubble) { mUseBubble = use_bubble; }
+	S32  getLOD() { return mLOD; }
+	BOOL getVisible() { return mVisible; }
+	BOOL getHidden() const { return mHidden; }
+	void setHidden( BOOL hide ) { mHidden = hide; }
+	void shift(const LLVector3& offset);
+
+	BOOL lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3& intersection, BOOL debug_render = FALSE);
+
+	static void shiftAll(const LLVector3& offset);
+	static void addPickable(std::set<LLViewerObject*> &pick_list);
+	static void reshape();
+	static void setDisplayText(BOOL flag) { sDisplayText = flag ; }
+
+protected:
+	LLHUDNameTag(const U8 type);
+
+	/*virtual*/ void render();
+	/*virtual*/ void renderForSelect();
+	void renderText(BOOL for_select);
+	static void updateAll();
+	void setLOD(S32 lod);
+	S32 getMaxLines();
+
+private:
+	~LLHUDNameTag();
+	//BOOL			mUseBubble;		always true
+	BOOL			mDropShadow;
+	BOOL			mDoFade;
+	F32				mFadeRange;
+	F32				mFadeDistance;
+	F32				mLastDistance;
+	BOOL			mZCompare;
+	BOOL			mVisibleOffScreen;
+	BOOL			mOffscreen;
+	LLColor4		mColor;
+	LLVector3		mScale;
+	F32				mWidth;
+	F32				mHeight;
+	LLColor4U		mPickColor;
+	const LLFontGL*	mFontp;
+	const LLFontGL*	mBoldFontp;
+	LLRectf			mSoftScreenRect;
+	LLVector3		mPositionAgent;
+	LLVector2		mPositionOffset;
+	LLVector2		mTargetPositionOffset;
+	F32				mMass;
+	S32				mMaxLines;
+	S32				mOffsetY;
+	F32				mRadius;
+	std::vector<LLHUDTextSegment> mTextSegments;
+	std::vector<LLHUDTextSegment> mLabelSegments;
+	LLFrameTimer	mResizeTimer;
+	ETextAlignment	mTextAlignment;
+	EVertAlignment	mVertAlignment;
+	S32				mLOD;
+	BOOL			mHidden;
+
+	static BOOL    sDisplayText ;
+	static std::set<LLPointer<LLHUDNameTag> > sTextObjects;
+	static std::vector<LLPointer<LLHUDNameTag> > sVisibleTextObjects;
+	static std::vector<LLPointer<LLHUDNameTag> > sVisibleHUDTextObjects;
+	typedef std::set<LLPointer<LLHUDNameTag> >::iterator TextObjectIterator;
+	typedef std::vector<LLPointer<LLHUDNameTag> >::iterator VisibleTextObjectIterator;
+};
+
+#endif
diff --git a/indra/newview/llhudobject.cpp b/indra/newview/llhudobject.cpp
index dc55aba0db..73fa987f3b 100644
--- a/indra/newview/llhudobject.cpp
+++ b/indra/newview/llhudobject.cpp
@@ -30,9 +30,6 @@
  * $/LicenseInfo$
  */
 
-// llhudobject.cpp
-// Copyright 2002, Linden Research, Inc.
-
 #include "llviewerprecompiledheaders.h"
 
 #include "llhudobject.h"
@@ -43,7 +40,7 @@
 #include "llhudeffectbeam.h"
 #include "llhudeffecttrail.h"
 #include "llhudeffectlookat.h"
-
+#include "llhudnametag.h"
 #include "llvoicevisualizer.h"
 
 #include "llagent.h"
@@ -71,7 +68,6 @@ LLHUDObject::LLHUDObject(const U8 type) :
 	mVisible = TRUE;
 	mType = type;
 	mDead = FALSE;
-	mOnHUDAttachment = FALSE;
 }
 
 LLHUDObject::~LLHUDObject()
@@ -150,6 +146,9 @@ LLHUDObject *LLHUDObject::addHUDObject(const U8 type)
 	case LL_HUD_ICON:
 		hud_objectp = new LLHUDIcon(type);
 		break;
+	case LL_HUD_NAME_TAG:
+		hud_objectp = new LLHUDNameTag(type);
+		break;
 	default:
 		llwarns << "Unknown type of hud object:" << (U32) type << llendl;
 	}
@@ -262,6 +261,7 @@ void LLHUDObject::updateAll()
 	LLFastTimer ftm(FTM_HUD_UPDATE);
 	LLHUDText::updateAll();
 	LLHUDIcon::updateAll();
+	LLHUDNameTag::updateAll();
 	sortObjects();
 }
 
@@ -310,6 +310,14 @@ void LLHUDObject::renderAllForSelect()
 }
 
 // static
+void LLHUDObject::reshapeAll()
+{
+	// only hud objects that use fonts care about window size/scale changes
+	LLHUDText::reshape();
+	LLHUDNameTag::reshape();
+}
+
+// static
 void LLHUDObject::sortObjects()
 {
 	sHUDObjects.sort(hud_object_further_away());	
diff --git a/indra/newview/llhudobject.h b/indra/newview/llhudobject.h
index 6b70d1922c..a370b31a20 100644
--- a/indra/newview/llhudobject.h
+++ b/indra/newview/llhudobject.h
@@ -76,6 +76,9 @@ public:
 	static void renderAll();
 	static void renderAllForSelect();
 
+	// Some objects may need to update when window shape changes
+	static void reshapeAll();
+
 	static void cleanupHUDObjects();
 
 	enum
@@ -96,7 +99,8 @@ public:
 		LL_HUD_EFFECT_EDIT,
 		LL_HUD_EFFECT_LOOKAT,
 		LL_HUD_EFFECT_POINTAT,
-		LL_HUD_EFFECT_VOICE_VISUALIZER	// Ventrella
+		LL_HUD_EFFECT_VOICE_VISUALIZER,	// Ventrella
+		LL_HUD_NAME_TAG
 	};
 protected:
 	static void sortObjects();
@@ -112,7 +116,6 @@ protected:
 	BOOL			mDead;
 	BOOL			mVisible;
 	LLVector3d		mPositionGlobal;
-	BOOL			mOnHUDAttachment;
 	LLPointer<LLViewerObject> mSourceObject;
 	LLPointer<LLViewerObject> mTargetObject;
 
diff --git a/indra/newview/llhudtext.cpp b/indra/newview/llhudtext.cpp
index b14753ff2a..406ad8c51e 100644
--- a/indra/newview/llhudtext.cpp
+++ b/indra/newview/llhudtext.cpp
@@ -62,7 +62,7 @@ const F32 HORIZONTAL_PADDING = 15.f;
 const F32 VERTICAL_PADDING = 12.f;
 const F32 BUFFER_SIZE = 2.f;
 const F32 MIN_EDGE_OVERLAP = 3.f;
-F32 HUD_TEXT_MAX_WIDTH = 190.f;
+const F32 HUD_TEXT_MAX_WIDTH = 190.f;
 const F32 HUD_TEXT_MAX_WIDTH_NO_BUBBLE = 1000.f;
 const F32 RESIZE_TIME = 0.f;
 const S32 NUM_OVERLAP_ITERATIONS = 10;
@@ -80,13 +80,13 @@ BOOL LLHUDText::sDisplayText = TRUE ;
 
 bool lltextobject_further_away::operator()(const LLPointer<LLHUDText>& lhs, const LLPointer<LLHUDText>& rhs) const
 {
-	return (lhs->getDistance() > rhs->getDistance()) ? true : false;
+	return lhs->getDistance() > rhs->getDistance();
 }
 
 
 LLHUDText::LLHUDText(const U8 type) :
 			LLHUDObject(type),
-			mUseBubble(FALSE),
+			mOnHUDAttachment(FALSE),
 			mVisibleOffScreen(FALSE),
 			mWidth(0.f),
 			mHeight(0.f),
@@ -116,112 +116,6 @@ LLHUDText::~LLHUDText()
 {
 }
 
-
-BOOL LLHUDText::lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3& intersection, BOOL debug_render)
-{
-	if (!mVisible || mHidden)
-	{
-		return FALSE;
-	}
-
-	// don't pick text that isn't bound to a viewerobject or isn't in a bubble
-	if (!mSourceObject || mSourceObject->mDrawable.isNull() || !mUseBubble)
-	{
-		return FALSE;
-	}
-	
-	F32 alpha_factor = 1.f;
-	LLColor4 text_color = mColor;
-	if (mDoFade)
-	{
-		if (mLastDistance > mFadeDistance)
-		{
-			alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
-			text_color.mV[3] = text_color.mV[3]*alpha_factor;
-		}
-	}
-	if (text_color.mV[3] < 0.01f)
-	{
-		return FALSE;
-	}
-
-	mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
-
-	// scale screen size of borders down
-	//RN: for now, text on hud objects is never occluded
-
-	LLVector3 x_pixel_vec;
-	LLVector3 y_pixel_vec;
-	
-	if (mOnHUDAttachment)
-	{
-		x_pixel_vec = LLVector3::y_axis / (F32)gViewerWindow->getWindowWidthScaled();
-		y_pixel_vec = LLVector3::z_axis / (F32)gViewerWindow->getWindowHeightScaled();
-	}
-	else
-	{
-		LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
-	}
-
-	LLVector3 width_vec = mWidth * x_pixel_vec;
-	LLVector3 height_vec = mHeight * y_pixel_vec;
-	
-	LLCoordGL screen_pos;
-	LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE);
-
-	LLVector2 screen_offset;
-	screen_offset = updateScreenPos(mPositionOffset);
-	
-	LLVector3 render_position = mPositionAgent  
-			+ (x_pixel_vec * screen_offset.mV[VX])
-			+ (y_pixel_vec * screen_offset.mV[VY]);
-
-
-	if (mUseBubble)
-	{
-		LLVector3 bg_pos = render_position
-			+ (F32)mOffsetY * y_pixel_vec
-			- (width_vec / 2.f)
-			- (height_vec);
-		//LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
-
-		LLVector3 v[] = 
-		{
-			bg_pos,
-			bg_pos + width_vec,
-			bg_pos + width_vec + height_vec,
-			bg_pos + height_vec,
-		};
-
-		if (debug_render)
-		{
-			gGL.begin(LLRender::LINE_STRIP);
-			gGL.vertex3fv(v[0].mV);
-			gGL.vertex3fv(v[1].mV);
-			gGL.vertex3fv(v[2].mV);
-			gGL.vertex3fv(v[3].mV);
-			gGL.vertex3fv(v[0].mV);
-			gGL.vertex3fv(v[2].mV);
-			gGL.end();
-		}
-
-		LLVector3 dir = end-start;
-		F32 t = 0.f;
-
-		if (LLTriangleRayIntersect(v[0], v[1], v[2], start, dir, NULL, NULL, &t, FALSE) ||
-			LLTriangleRayIntersect(v[2], v[3], v[0], start, dir, NULL, NULL, &t, FALSE) )
-		{
-			if (t <= 1.f)
-			{
-				intersection = start + dir*t;
-				return TRUE;
-			}
-		}
-	}
-
-	return FALSE;
-}
-
 void LLHUDText::render()
 {
 	if (!mOnHUDAttachment && sDisplayText)
@@ -247,21 +141,13 @@ void LLHUDText::renderText(BOOL for_select)
 		return;
 	}
 
-	// don't pick text that isn't bound to a viewerobject or isn't in a bubble
-	if (for_select && 
-		(!mSourceObject || mSourceObject->mDrawable.isNull() || !mUseBubble))
+	// don't pick text
+	if (for_select)
 	{
 		return;
 	}
 	
-	if (for_select)
-	{
-		gGL.getTexUnit(0)->disable();
-	}
-	else
-	{
-		gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
-	}
+	gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
 
 	LLGLState gls_blend(GL_BLEND, for_select ? FALSE : TRUE);
 	LLGLState gls_alpha(GL_ALPHA_TEST, for_select ? FALSE : TRUE);
@@ -335,152 +221,12 @@ void LLHUDText::renderText(BOOL for_select)
 	LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE);
 
 	LLVector2 screen_offset;
-	if (!mUseBubble)
-	{
-		screen_offset = mPositionOffset;
-	}
-	else
-	{
-		screen_offset = updateScreenPos(mPositionOffset);
-	}
+	screen_offset = mPositionOffset;
 
 	LLVector3 render_position = mPositionAgent  
 			+ (x_pixel_vec * screen_offset.mV[VX])
 			+ (y_pixel_vec * screen_offset.mV[VY]);
 
-	//if (mOnHUD)
-	//{
-	//	render_position.mV[VY] -= fmodf(render_position.mV[VY], 1.f / (F32)gViewerWindow->getWindowWidthScaled());
-	//	render_position.mV[VZ] -= fmodf(render_position.mV[VZ], 1.f / (F32)gViewerWindow->getWindowHeightScaled());
-	//}
-	//else
-	//{
-	//	render_position = LLViewerCamera::getInstance()->roundToPixel(render_position);
-	//}
-
-	if (mUseBubble)
-	{
-		LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
-		LLUI::pushMatrix();
-		{
-			LLVector3 bg_pos = render_position
-				+ (F32)mOffsetY * y_pixel_vec
-				- (width_vec / 2.f)
-				- (height_vec);
-			LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
-
-			if (for_select)
-			{
-				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-				S32 name = mSourceObject->mGLName;
-				LLColor4U coloru((U8)(name >> 16), (U8)(name >> 8), (U8)name);
-				gGL.color4ubv(coloru.mV);
-				gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec);
-				LLUI::popMatrix();
-				return;
-			}
-			else
-			{
-				gGL.getTexUnit(0)->bind(imagep->getImage());
-				
-				gGL.color4fv(bg_color.mV);
-				gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec);
-		
-				if ( mLabelSegments.size())
-				{
-					LLUI::pushMatrix();
-					{
-						gGL.color4f(text_color.mV[VX], text_color.mV[VY], text_color.mV[VZ], gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor);
-						LLVector3 label_height = (mFontp->getLineHeight() * mLabelSegments.size() + (VERTICAL_PADDING / 3.f)) * y_pixel_vec;
-						LLVector3 label_offset = height_vec - label_height;
-						LLUI::translate(label_offset.mV[VX], label_offset.mV[VY], label_offset.mV[VZ]);
-						gl_segmented_rect_3d_tex_top(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, label_height);
-					}
-					LLUI::popMatrix();
-				}
-			}
-
-			BOOL outside_width = llabs(mPositionOffset.mV[VX]) > mWidth * 0.5f;
-			BOOL outside_height = llabs(mPositionOffset.mV[VY] + (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.5f : 0.f)) > mHeight * (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.75f : 0.5f);
-
-			// draw line segments pointing to parent object
-			if (!mOffscreen && (outside_width || outside_height))
-			{
-				LLUI::pushMatrix();
-				{
-					gGL.color4fv(bg_color.mV);
-					LLVector3 target_pos = -1.f * (mPositionOffset.mV[VX] * x_pixel_vec + mPositionOffset.mV[VY] * y_pixel_vec);
-					target_pos += (width_vec / 2.f);
-					target_pos += mVertAlignment == ALIGN_VERT_CENTER ? (height_vec * 0.5f) : LLVector3::zero;
-					target_pos -= 3.f * x_pixel_vec;
-					target_pos -= 6.f * y_pixel_vec;
-					LLUI::translate(target_pos.mV[VX], target_pos.mV[VY], target_pos.mV[VZ]);
-					gl_segmented_rect_3d_tex(border_scale_vec, 3.f * x_pixel_vec, 3.f * y_pixel_vec, 6.f * x_pixel_vec, 6.f * y_pixel_vec);	
-				}
-				LLUI::popMatrix();
-
-				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-				LLGLDepthTest gls_depth(mZCompare ? GL_TRUE : GL_FALSE, GL_FALSE);
-				
-				LLVector3 box_center_offset;
-				box_center_offset = (width_vec * 0.5f) + (height_vec * 0.5f);
-				LLUI::translate(box_center_offset.mV[VX], box_center_offset.mV[VY], box_center_offset.mV[VZ]);
-				gGL.color4fv(bg_color.mV);
-				LLUI::setLineWidth(2.0);
-				gGL.begin(LLRender::LINES);
-				{
-					if (outside_width)
-					{
-						LLVector3 vert;
-						// draw line in x then y
-						if (mPositionOffset.mV[VX] < 0.f)
-						{
-							// start at right edge
-							vert = width_vec * 0.5f;
-							gGL.vertex3fv(vert.mV);
-						}
-						else
-						{
-							// start at left edge
-							vert = width_vec * -0.5f;
-							gGL.vertex3fv(vert.mV);
-						}
-						vert = -mPositionOffset.mV[VX] * x_pixel_vec;
-						gGL.vertex3fv(vert.mV);
-						gGL.vertex3fv(vert.mV);
-						vert -= mPositionOffset.mV[VY] * y_pixel_vec;
-						vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
-						gGL.vertex3fv(vert.mV);
-					}
-					else
-					{
-						LLVector3 vert;
-						// draw line in y then x
-						if (mPositionOffset.mV[VY] < 0.f)
-						{
-							// start at top edge
-							vert = (height_vec * 0.5f) - (mPositionOffset.mV[VX] * x_pixel_vec);
-							gGL.vertex3fv(vert.mV);
-						}
-						else
-						{
-							// start at bottom edge
-							vert = (height_vec * -0.5f)  - (mPositionOffset.mV[VX] * x_pixel_vec);
-							gGL.vertex3fv(vert.mV);
-						}
-						vert = -mPositionOffset.mV[VY] * y_pixel_vec - mPositionOffset.mV[VX] * x_pixel_vec;
-						vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
-						gGL.vertex3fv(vert.mV);
-					}
-				}
-				gGL.end();
-				LLUI::setLineWidth(1.0);
-
-			}
-		}
-		LLUI::popMatrix();
-	}
-
 	F32 y_offset = (F32)mOffsetY;
 		
 	// Render label
@@ -556,10 +302,6 @@ void LLHUDText::renderText(BOOL for_select)
 	}
 	/// Reset the default color to white.  The renderer expects this to be the default. 
 	gGL.color4f(1.0f, 1.0f, 1.0f, 1.0f);
-	if (for_select)
-	{
-		gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
-	}
 }
 
 void LLHUDText::setString(const std::string &text_utf8)
@@ -599,7 +341,7 @@ void LLHUDText::addLine(const std::string &text_utf8,
 			U32 line_length = 0;
 			do	
 			{
-				F32 max_pixels = (mUseBubble ? HUD_TEXT_MAX_WIDTH : HUD_TEXT_MAX_WIDTH_NO_BUBBLE);
+				F32 max_pixels = HUD_TEXT_MAX_WIDTH_NO_BUBBLE;
 				S32 segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels, wline.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
 				LLHUDTextSegment segment(iter->substr(line_length, segment_length), style, color, font);
 				mTextSegments.push_back(segment);
@@ -611,42 +353,6 @@ void LLHUDText::addLine(const std::string &text_utf8,
 	}
 }
 
-void LLHUDText::setLabel(const std::string &label_utf8)
-{
-	mLabelSegments.clear();
-	addLabel(label_utf8);
-}
-
-void LLHUDText::addLabel(const std::string& label_utf8)
-{
-	LLWString wstr = utf8string_to_wstring(label_utf8);
-	if (!wstr.empty())
-	{
-		LLWString seps(utf8str_to_wstring("\r\n"));
-		LLWString empty;
-
-		typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
-		boost::char_separator<llwchar> sep(seps.c_str(), empty.c_str(), boost::keep_empty_tokens);
-
-		tokenizer tokens(wstr, sep);
-		tokenizer::iterator iter = tokens.begin();
-
-		while (iter != tokens.end())
-		{
-			U32 line_length = 0;
-			do	
-			{
-				S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(), mUseBubble ? HUD_TEXT_MAX_WIDTH : HUD_TEXT_MAX_WIDTH_NO_BUBBLE, wstr.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
-				LLHUDTextSegment segment(iter->substr(line_length, segment_length), LLFontGL::NORMAL, mColor, mFontp);
-				mLabelSegments.push_back(segment);
-				line_length += segment_length;
-			}
-			while (line_length != iter->size());
-			++iter;
-		}
-	}
-}
-
 void LLHUDText::setDropShadow(const BOOL do_shadow)
 {
 	mDropShadow = do_shadow;
@@ -898,122 +604,6 @@ void LLHUDText::updateAll()
 	// sort back to front for rendering purposes
 	std::sort(sVisibleTextObjects.begin(), sVisibleTextObjects.end(), lltextobject_further_away());
 	std::sort(sVisibleHUDTextObjects.begin(), sVisibleHUDTextObjects.end(), lltextobject_further_away());
-
-	// iterate from front to back, and set LOD based on current screen coverage
-	F32 screen_area = (F32)(gViewerWindow->getWindowWidthScaled() * gViewerWindow->getWindowHeightScaled());
-	F32 current_screen_area = 0.f;
-	std::vector<LLPointer<LLHUDText> >::reverse_iterator r_it;
-	for (r_it = sVisibleTextObjects.rbegin(); r_it != sVisibleTextObjects.rend(); ++r_it)
-	{
-		LLHUDText* textp = (*r_it);
-		if (textp->mUseBubble)
-		{
-			if (current_screen_area / screen_area > LOD_2_SCREEN_COVERAGE)
-			{
-				textp->setLOD(3);
-			}
-			else if (current_screen_area / screen_area > LOD_1_SCREEN_COVERAGE)
-			{
-				textp->setLOD(2);
-			}
-			else if (current_screen_area / screen_area > LOD_0_SCREEN_COVERAGE)
-			{
-				textp->setLOD(1);
-			}
-			else
-			{
-				textp->setLOD(0);
-			}
-			textp->updateSize();
-			// find on-screen position and initialize collision rectangle
-			textp->mTargetPositionOffset = textp->updateScreenPos(LLVector2::zero);
-			current_screen_area += (F32)(textp->mSoftScreenRect.getWidth() * textp->mSoftScreenRect.getHeight());
-		}
-	}
-
-	LLStat* camera_vel_stat = LLViewerCamera::getInstance()->getVelocityStat();
-	F32 camera_vel = camera_vel_stat->getCurrent();
-	if (camera_vel > MAX_STABLE_CAMERA_VELOCITY)
-	{
-		return;
-	}
-
-	VisibleTextObjectIterator src_it;
-
-	for (S32 i = 0; i < NUM_OVERLAP_ITERATIONS; i++)
-	{
-		for (src_it = sVisibleTextObjects.begin(); src_it != sVisibleTextObjects.end(); ++src_it)
-		{
-			LLHUDText* src_textp = (*src_it);
-
-			if (!src_textp->mUseBubble)
-			{
-				continue;
-			}
-			VisibleTextObjectIterator dst_it = src_it;
-			++dst_it;
-			for (; dst_it != sVisibleTextObjects.end(); ++dst_it)
-			{
-				LLHUDText* dst_textp = (*dst_it);
-
-				if (!dst_textp->mUseBubble)
-				{
-					continue;
-				}
-				if (src_textp->mSoftScreenRect.overlaps(dst_textp->mSoftScreenRect))
-				{
-					LLRectf intersect_rect = src_textp->mSoftScreenRect;
-					intersect_rect.intersectWith(dst_textp->mSoftScreenRect);
-					intersect_rect.stretch(-BUFFER_SIZE * 0.5f);
-					
-					F32 src_center_x = src_textp->mSoftScreenRect.getCenterX();
-					F32 src_center_y = src_textp->mSoftScreenRect.getCenterY();
-					F32 dst_center_x = dst_textp->mSoftScreenRect.getCenterX();
-					F32 dst_center_y = dst_textp->mSoftScreenRect.getCenterY();
-					F32 intersect_center_x = intersect_rect.getCenterX();
-					F32 intersect_center_y = intersect_rect.getCenterY();
-					LLVector2 force = lerp(LLVector2(dst_center_x - intersect_center_x, dst_center_y - intersect_center_y), 
-										LLVector2(intersect_center_x - src_center_x, intersect_center_y - src_center_y),
-										0.5f);
-					force.setVec(dst_center_x - src_center_x, dst_center_y - src_center_y);
-					force.normVec();
-
-					LLVector2 src_force = -1.f * force;
-					LLVector2 dst_force = force;
-
-					LLVector2 force_strength;
-					F32 src_mult = dst_textp->mMass / (dst_textp->mMass + src_textp->mMass); 
-					F32 dst_mult = 1.f - src_mult;
-					F32 src_aspect_ratio = src_textp->mSoftScreenRect.getWidth() / src_textp->mSoftScreenRect.getHeight();
-					F32 dst_aspect_ratio = dst_textp->mSoftScreenRect.getWidth() / dst_textp->mSoftScreenRect.getHeight();
-					src_force.mV[VY] *= src_aspect_ratio;
-					src_force.normVec();
-					dst_force.mV[VY] *= dst_aspect_ratio;
-					dst_force.normVec();
-
-					src_force.mV[VX] *= llmin(intersect_rect.getWidth() * src_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
-					src_force.mV[VY] *= llmin(intersect_rect.getHeight() * src_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
-					dst_force.mV[VX] *=  llmin(intersect_rect.getWidth() * dst_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
-					dst_force.mV[VY] *=  llmin(intersect_rect.getHeight() * dst_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
-					
-					src_textp->mTargetPositionOffset += src_force;
-					dst_textp->mTargetPositionOffset += dst_force;
-					src_textp->mTargetPositionOffset = src_textp->updateScreenPos(src_textp->mTargetPositionOffset);
-					dst_textp->mTargetPositionOffset = dst_textp->updateScreenPos(dst_textp->mTargetPositionOffset);
-				}
-			}
-		}
-	}
-
-	VisibleTextObjectIterator this_object_it;
-	for (this_object_it = sVisibleTextObjects.begin(); this_object_it != sVisibleTextObjects.end(); ++this_object_it)
-	{
-		if (!(*this_object_it)->mUseBubble)
-		{
-			continue;
-		}
-		(*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLCriticalDamp::getInterpolant(POSITION_DAMPING_TC));
-	}
 }
 
 void LLHUDText::setLOD(S32 lod)
@@ -1088,22 +678,6 @@ void LLHUDText::shift(const LLVector3& offset)
 	mPositionAgent += offset;
 }
 
-//static 
-void LLHUDText::addPickable(std::set<LLViewerObject*> &pick_list)
-{
-	//this might put an object on the pick list a second time, overriding it's mGLName, which is ok
-	// *FIX: we should probably cull against pick frustum
-	VisibleTextObjectIterator text_it;
-	for (text_it = sVisibleTextObjects.begin(); text_it != sVisibleTextObjects.end(); ++text_it)
-	{
-		if (!(*text_it)->mUseBubble)
-		{
-			continue;
-		}
-		pick_list.insert((*text_it)->mSourceObject);
-	}
-}
-
 //static
 // called when UI scale changes, to flush font width caches
 void LLHUDText::reshape()
diff --git a/indra/newview/llhudtext.h b/indra/newview/llhudtext.h
index 8219358cc1..3acd2934e1 100644
--- a/indra/newview/llhudtext.h
+++ b/indra/newview/llhudtext.h
@@ -92,15 +92,17 @@ public:
 	} EVertAlignment;
 
 public:
+	// Set entire string, eliminating existing lines
 	void setString(const std::string& text_utf8);
-//	void setString(const LLWString &wstring);
+
 	void clearString();
+
+	// Add text a line at a time, allowing custom formatting
 	void addLine(const std::string &text_utf8, const LLColor4& color, const LLFontGL::StyleFlags style = LLFontGL::NORMAL, const LLFontGL* font = NULL);
-//	void addLine(const LLWString &wtext, const LLColor4& color, const LLFontGL::StyleFlags style = LLFontGL::NORMAL, const LLFontGL* font = NULL);
-	void setLabel(const std::string& label_utf8);
-//	void setLabel(const LLWString &label);
-	void addLabel(const std::string& label_utf8);
+
 	void setDropShadow(const BOOL do_shadow);
+
+	// Sets the default font for lines with no font specified
 	void setFont(const LLFontGL* font);
 	void setColor(const LLColor4 &color);
 	void setAlpha(F32 alpha);
@@ -120,7 +122,6 @@ public:
 	/*virtual*/ void markDead();
 	friend class LLHUDObject;
 	/*virtual*/ F32 getDistance() const { return mLastDistance; }
-	void setUseBubble(BOOL use_bubble) { mUseBubble = use_bubble; }
 	S32  getLOD() { return mLOD; }
 	BOOL getVisible() { return mVisible; }
 	BOOL getHidden() const { return mHidden; }
@@ -128,13 +129,11 @@ public:
 	void setOnHUDAttachment(BOOL on_hud) { mOnHUDAttachment = on_hud; }
 	void shift(const LLVector3& offset);
 
-	BOOL lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3& intersection, BOOL debug_render = FALSE);
-
 	static void shiftAll(const LLVector3& offset);
 	static void renderAllHUD();
-	static void addPickable(std::set<LLViewerObject*> &pick_list);
 	static void reshape();
 	static void setDisplayText(BOOL flag) { sDisplayText = flag ; }
+
 protected:
 	LLHUDText(const U8 type);
 
@@ -147,8 +146,8 @@ protected:
 
 private:
 	~LLHUDText();
-	BOOL			mOnHUD;
-	BOOL			mUseBubble;
+	BOOL			mOnHUDAttachment;
+//	BOOL			mUseBubble;
 	BOOL			mDropShadow;
 	BOOL			mDoFade;
 	F32				mFadeRange;
diff --git a/indra/newview/llviewerobjectlist.cpp b/indra/newview/llviewerobjectlist.cpp
index 6347090f71..d920e96ded 100644
--- a/indra/newview/llviewerobjectlist.cpp
+++ b/indra/newview/llviewerobjectlist.cpp
@@ -52,7 +52,7 @@
 #include "lltooltip.h"
 #include "llworld.h"
 #include "llstring.h"
-#include "llhudtext.h"
+#include "llhudnametag.h"
 #include "lldrawable.h"
 #include "xform.h"
 #include "llsky.h"
@@ -1193,7 +1193,7 @@ void LLViewerObjectList::generatePickList(LLCamera &camera)
 			}
 		}
 
-		LLHUDText::addPickable(mSelectPickList);
+		LLHUDNameTag::addPickable(mSelectPickList);
 
 		for (std::vector<LLCharacter*>::iterator iter = LLCharacter::sInstances.begin();
 			iter != LLCharacter::sInstances.end(); ++iter)
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index ea1afafe85..16b8711561 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -120,6 +120,7 @@
 #include "llglheaders.h"
 #include "lltooltip.h"
 #include "llhudmanager.h"
+#include "llhudobject.h"
 #include "llhudview.h"
 #include "llimagebmp.h"
 #include "llimagej2c.h"
@@ -1902,7 +1903,7 @@ void LLViewerWindow::reshape(S32 width, S32 height)
 		// clear font width caches
 		if (display_scale_changed)
 		{
-			LLHUDText::reshape();
+			LLHUDObject::reshapeAll();
 		}
 
 		sendShapeToSim();
@@ -4132,7 +4133,7 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei
 		send_agent_pause();
 		//rescale fonts
 		initFonts(scale_factor);
-		LLHUDText::reshape();
+		LLHUDObject::reshapeAll();
 	}
 
 	S32 output_buffer_offset_y = 0;
@@ -4261,7 +4262,7 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei
 	if (high_res)
 	{
 		initFonts(1.f);
-		LLHUDText::reshape();
+		LLHUDObject::reshapeAll();
 	}
 
 	// Pre-pad image to number of pixels such that the line length is a multiple of 4 bytes (for BMP encoding)
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index b56e4d3d2e..e039544779 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -63,7 +63,8 @@
 #include "llheadrotmotion.h"
 #include "llhudeffecttrail.h"
 #include "llhudmanager.h"
-#include "llhudtext.h"
+#include "llhudnametag.h"
+#include "llhudtext.h"				// for mText/mDebugText
 #include "llkeyframefallmotion.h"
 #include "llkeyframestandmotion.h"
 #include "llkeyframewalkmotion.h"
@@ -2750,14 +2751,14 @@ void LLVOAvatar::idleUpdateNameTag(const LLVector3& root_pos_last)
 
 	if (!mNameText)
 	{
-		mNameText = (LLHUDText *)LLHUDObject::addHUDObject(LLHUDObject::LL_HUD_TEXT);
+		mNameText = static_cast<LLHUDNameTag*>( LLHUDObject::addHUDObject(
+			LLHUDObject::LL_HUD_NAME_TAG) );
 		mNameText->setMass(10.f);
 		mNameText->setSourceObject(this);
-		mNameText->setVertAlignment(LLHUDText::ALIGN_VERT_TOP);
+		mNameText->setVertAlignment(LLHUDNameTag::ALIGN_VERT_TOP);
 		mNameText->setVisibleOffScreen(TRUE);
 		mNameText->setMaxLines(11);
 		mNameText->setFadeDistance(CHAT_NORMAL_RADIUS, 5.f);
-		mNameText->setUseBubble(TRUE);
 		sNumVisibleChatBubbles++;
 		new_name = TRUE;
 	}
@@ -2896,7 +2897,7 @@ void LLVOAvatar::idleUpdateNameTagText(BOOL new_name)
 	{
 		mNameText->setDropShadow(TRUE);
 		mNameText->setFont(LLFontGL::getFontSansSerif());
-		mNameText->setTextAlignment(LLHUDText::ALIGN_TEXT_LEFT);
+		mNameText->setTextAlignment(LLHUDNameTag::ALIGN_TEXT_LEFT);
 		mNameText->setFadeDistance(CHAT_NORMAL_RADIUS * 2.f, 5.f);
 	
 		char line[MAX_STRING];		/* Flawfinder: ignore */
@@ -2967,7 +2968,7 @@ void LLVOAvatar::idleUpdateNameTagText(BOOL new_name)
 	else
 	{
 		// ...not using chat bubbles, just names
-		mNameText->setTextAlignment(LLHUDText::ALIGN_TEXT_CENTER);
+		mNameText->setTextAlignment(LLHUDNameTag::ALIGN_TEXT_CENTER);
 		mNameText->setFadeDistance(CHAT_NORMAL_RADIUS, 5.f);
 		mNameText->setVisibleOffScreen(FALSE);
 	}
diff --git a/indra/newview/llvoavatar.h b/indra/newview/llvoavatar.h
index b63e3b2ebd..c31369358c 100644
--- a/indra/newview/llvoavatar.h
+++ b/indra/newview/llvoavatar.h
@@ -65,7 +65,7 @@ extern const LLUUID ANIM_AGENT_WALK_ADJUST;
 
 class LLTexLayerSet;
 class LLVoiceVisualizer;
-class LLHUDText;
+class LLHUDNameTag;
 class LLHUDEffectSpiral;
 class LLTexGlobalColor;
 class LLVOAvatarBoneInfo;
@@ -842,7 +842,7 @@ private:
 	//--------------------------------------------------------------------
 public:
 	LLFrameTimer	mChatTimer;
-	LLPointer<LLHUDText> mNameText;
+	LLPointer<LLHUDNameTag> mNameText;
 private:
 	LLFrameTimer	mTimeVisible;
 	std::deque<LLChat> mChats;
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 4de1560f16..31c245dc57 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -69,6 +69,7 @@
 #include "llfloaterreg.h"
 #include "llgldbg.h"
 #include "llhudmanager.h"
+#include "llhudnametag.h"
 #include "llhudtext.h"
 #include "lllightconstants.h"
 #include "llresmgr.h"
@@ -2080,6 +2081,7 @@ void LLPipeline::shiftObjects(const LLVector3 &offset)
 	}
 
 	LLHUDText::shiftAll(offset);
+	LLHUDNameTag::shiftAll(offset);
 	display_update_camera();
 }
 
@@ -5269,7 +5271,8 @@ LLViewerObject* LLPipeline::lineSegmentIntersectInWorld(const LLVector3& start,
 		++iter)
 	{
 		LLVOAvatar* av = (LLVOAvatar*) *iter;
-		if (av->mNameText.notNull() && av->mNameText->lineSegmentIntersect(start, local_end, position))
+		if (av->mNameText.notNull()
+			&& av->mNameText->lineSegmentIntersect(start, local_end, position))
 		{
 			drawable = av->mDrawable;
 			local_end = position;