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diff --git a/indra/newview/llavatarlist.cpp b/indra/newview/llavatarlist.cpp
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+++ b/indra/newview/llavatarlist.cpp
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+/** 
+ * @file llavatarlist.h
+ * @brief Generic avatar list
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ * 
+ * Copyright (c) 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 "llavatarlist.h"
+
+// newview
+#include "llcallingcard.h" // for LLAvatarTracker
+#include "llcachename.h"
+#include "lloutputmonitorctrl.h"
+#include "llvoiceclient.h"
+
+static LLDefaultChildRegistry::Register<LLAvatarList> r("avatar_list");
+
+LLAvatarList::Params::Params()
+:
+	volume_column_width("volume_column_width", 0)
+	, online_go_first("online_go_first", true)
+{
+	draw_heading	= true;
+	draw_stripes	= false;
+	multi_select	= false;
+	column_padding	= 0;
+	search_column	= COL_NAME;
+	sort_column		= COL_NAME;
+}
+
+LLAvatarList::LLAvatarList(const Params& p)
+:	LLScrollListCtrl(p)
+	, mHaveVolumeColumn(p.volume_column_width > 0)
+	, mOnlineGoFirst(p.online_go_first)
+{
+	setCommitOnSelectionChange(TRUE); // there's no such param in LLScrollListCtrl::Params
+
+    // "volume" column
+    {
+    	LLScrollListColumn::Params col_params;
+    	col_params.name = "volume";
+    	col_params.header.label = "Volume"; // *TODO: localize or remove the header
+    	col_params.width.pixel_width = p.volume_column_width;
+    	addColumn(col_params);
+    }
+
+    // "name" column
+    {
+    	LLScrollListColumn::Params col_params;
+    	col_params.name = "name";
+    	col_params.header.label = "Name"; // *TODO: localize or remove the header
+    	col_params.width.dynamic_width = true;
+    	addColumn(col_params);
+    }
+
+    // "online status" column
+    {
+    	LLScrollListColumn::Params col_params;
+    	col_params.name = "online";
+    	col_params.header.label = "Online"; // *TODO: localize or remove the header
+    	col_params.width.pixel_width = 0; // invisible column
+    	addColumn(col_params);
+    }
+
+    
+    // invisible "id" column
+    {
+    	LLScrollListColumn::Params col_params;
+    	col_params.name = "id";
+    	col_params.header.label = "ID"; // *TODO: localize or remove the header
+    	col_params.width.pixel_width = 0;
+    	addColumn(col_params);
+    }
+
+	// Primary sort = online status, secondary sort = name
+	// The corresponding parameters don't work because we create columns dynamically.
+	sortByColumnIndex(COL_NAME, TRUE);
+	if (mOnlineGoFirst)
+		sortByColumnIndex(COL_ONLINE, FALSE);
+	setSearchColumn(COL_NAME);
+}
+
+// virtual
+void LLAvatarList::draw()
+{
+	LLScrollListCtrl::draw();
+	if (mHaveVolumeColumn)
+	{
+		updateVolume();
+	}
+}
+
+std::vector<LLUUID> LLAvatarList::getSelectedIDs()
+{
+	LLUUID selected_id;
+	std::vector<LLUUID> avatar_ids;
+	std::vector<LLScrollListItem*> selected = getAllSelected();
+	for(std::vector<LLScrollListItem*>::iterator itr = selected.begin(); itr != selected.end(); ++itr)
+	{
+		avatar_ids.push_back((*itr)->getUUID());
+	}
+	return avatar_ids;
+}
+
+void LLAvatarList::addItem(const LLUUID& id, const std::string& name, BOOL is_bold, EAddPosition pos)
+{
+	std::string fullname;
+
+	// Populate list item.
+	LLSD element;
+	element["id"] = id;
+
+	// Update volume column (if we have one)
+	{
+		std::string icon = mHaveVolumeColumn ? getVolumeIcon(id) : "";
+		LLSD& volume_column = element["columns"][COL_VOLUME];
+		volume_column["column"] = "volume";
+		volume_column["type"] = "icon";
+		volume_column["value"] = icon;
+	}
+
+	LLSD& friend_column = element["columns"][COL_NAME];
+	friend_column["column"] = "name";
+	friend_column["value"] = name;
+
+	LLSD& online_column = element["columns"][COL_ONLINE];
+	online_column["column"] = "online";
+	online_column["value"] = is_bold ? "1" : "0";
+
+	LLScrollListItem* new_itemp = addElement(element, pos);
+
+	// Indicate buddy online status.
+	// (looks like parsing font parameters from LLSD is broken)
+	if (is_bold)
+	{
+		LLScrollListText* name_textp = dynamic_cast<LLScrollListText*>(new_itemp->getColumn(COL_NAME));
+		if (name_textp)
+			name_textp->setFontStyle(LLFontGL::BOLD);
+		else
+		{
+			llwarns << "Name column not found" << llendl;
+		}
+	}
+}
+
+static bool findInsensitive(std::string haystack, const std::string& needle_upper)
+{
+    LLStringUtil::toUpper(haystack);
+    return haystack.find(needle_upper) != std::string::npos;
+}
+
+BOOL LLAvatarList::update(const std::vector<LLUUID>& all_buddies, const std::string& name_filter)
+{
+	BOOL have_names = TRUE;
+	
+	// Save selection.	
+	std::vector<LLUUID> selected_ids = getSelectedIDs();
+	LLUUID current_id = getCurrentID();
+	S32 pos = getScrollPos();
+	
+	std::vector<LLUUID>::const_iterator buddy_it = all_buddies.begin();
+	deleteAllItems();
+	for(; buddy_it != all_buddies.end(); ++buddy_it)
+	{
+		std::string name;
+		const LLUUID& buddy_id = *buddy_it;
+		have_names &= gCacheName->getFullName(buddy_id, name);
+		if (name_filter != LLStringUtil::null && !findInsensitive(name, name_filter))
+			continue;
+		addItem(buddy_id, name, LLAvatarTracker::instance().isBuddyOnline(buddy_id));
+	}
+
+	// Changed item in place, need to request sort and update columns
+	// because we might have changed data in a column on which the user
+	// has already sorted. JC
+	updateSort();
+
+	// re-select items
+	selectMultiple(selected_ids);
+	setCurrentByID(current_id);
+#if 0
+	// Restore selection.
+	if(selected_ids.size() > 0)
+	{
+		// only non-null if friends was already found. This may fail,
+		// but we don't really care here, because refreshUI() will
+		// clean up the interface.
+		for(std::vector<LLUUID>::iterator itr = selected_ids.begin(); itr != selected_ids.end(); ++itr)
+		{
+			setSelectedByValue(*itr, true);
+		}
+	}
+#endif
+	setScrollPos(pos);
+
+	return have_names;
+}
+
+// static
+std::string LLAvatarList::getVolumeIcon(const LLUUID& id)
+{
+	//
+	// Determine icon appropriate for the current avatar volume.
+	//
+	// *TODO: remove this in favor of LLOutputMonitorCtrl
+	// when ListView widget is implemented
+	// which is capable of containing arbitrary widgets.
+	//
+	static LLOutputMonitorCtrl::Params default_monitor_params(LLUICtrlFactory::getDefaultParams<LLOutputMonitorCtrl>());
+	bool		muted = gVoiceClient->getIsModeratorMuted(id) || gVoiceClient->getOnMuteList(id);
+	F32			power = gVoiceClient->getCurrentPower(id);
+	std::string	icon;
+
+	if (muted)
+	{
+		icon = default_monitor_params.image_mute.name;
+	}
+	else if (power == 0.f)
+	{
+		icon = default_monitor_params.image_off.name;
+	}
+	else if (power < LLVoiceClient::OVERDRIVEN_POWER_LEVEL)
+	{
+		S32 icon_image_idx = llmin(2, llfloor((power / LLVoiceClient::OVERDRIVEN_POWER_LEVEL) * 3.f));
+		switch(icon_image_idx)
+		{
+		default:
+		case 0:
+			icon = default_monitor_params.image_on.name;
+			break;
+		case 1:
+			icon = default_monitor_params.image_level_1.name;
+			break;
+		case 2:
+			icon = default_monitor_params.image_level_2.name;
+			break;
+		}
+	}
+	else
+	{
+		// overdriven
+		icon = default_monitor_params.image_level_3.name;
+	}
+
+	return icon;
+}
+
+// Update volume column for all list rows.
+void LLAvatarList::updateVolume()
+{
+	item_list& items = getItemList();
+
+	for (item_list::iterator item_it = items.begin();
+		item_it != items.end();
+		++item_it)
+	{
+		LLScrollListItem* itemp = (*item_it);
+		LLUUID speaker_id = itemp->getUUID();
+
+		LLScrollListCell* icon_cell = itemp->getColumn(COL_VOLUME);
+		if (icon_cell)
+			icon_cell->setValue(getVolumeIcon(speaker_id));
+	}
+}