SL-6109 Cell selection support

6 files changed, 230 insertions, 63 deletions

diff --git a/indra/llui/llscrolllistcell.cpp b/indra/llui/llscrolllistcell.cpp
index d6627a6957..13839da400 100644
--- a/indra/llui/llscrolllistcell.cpp
+++ b/indra/llui/llscrolllistcell.cpp
@@ -172,7 +172,7 @@ U32 LLScrollListText::sCount = 0;
 
 LLScrollListText::LLScrollListText(const LLScrollListCell::Params& p)
 :	LLScrollListCell(p),
-	mText(p.text.isProvided() ? p.text() : p.value().asString()),
+	mText(p.label.isProvided() ? p.label() : p.value().asString()),
 	mFont(p.font),
 	mColor(p.color),
 	mUseColor(p.color.isProvided()),
@@ -199,13 +199,6 @@ void LLScrollListText::highlightText(S32 offset, S32 num_chars)
 	mHighlightCount = llmax(0, num_chars);
 }
 
-//virtual
-void LLScrollListText::setHighlighted(bool highlighted)
-{
-    mHighlightOffset = 0;
-    mHighlightCount = highlighted ? -1 : 0;
-}
-
 //virtual 
 BOOL LLScrollListText::isText() const
 {
@@ -323,15 +316,6 @@ void LLScrollListText::draw(const LLColor4& color, const LLColor4& highlight_col
 				1);
 		mRoundedRectImage->draw(highlight_rect, highlight_color);
 	}
-	else if (mHighlightCount < 0)
-	{
-		// Highlight whole cell
-		LLRect highlight_rect(0,
-		getHeight(),
-		getWidth() - 1,
-		-1);
-		gl_rect_2d(highlight_rect, LLColor4(0.38f, 0.694f, 0.573f, 0.35f));
-	}
 
 	// Try to draw the entire string
 	F32 right_x;
diff --git a/indra/llui/llscrolllistcell.h b/indra/llui/llscrolllistcell.h
index b4bb14bcf1..ef7f717b57 100644
--- a/indra/llui/llscrolllistcell.h
+++ b/indra/llui/llscrolllistcell.h
@@ -60,7 +60,7 @@ public:
 
 		Optional<void*>				userdata;
 		Optional<LLSD>				value; // state of checkbox, icon id/name, date
-		Optional<std::string>		text; // description or text
+		Optional<std::string>		label; // description or text
 		Optional<std::string>		tool_tip;
 
 		Optional<const LLFontGL*>	font;
@@ -70,12 +70,13 @@ public:
 		Optional<LLColor4>			color;
 
 		Params()
-		:	type("type", "text"),
+		:	type("cell_type", "text"), // Don't use "type", it overlaps with xml's parameter
 			column("column"),
 			width("width"),
 			enabled("enabled", true),
 			visible("visible", true),
 			value("value"),
+			label("label"),
 			tool_tip("tool_tip", ""),
 			font("font", LLFontGL::getFontSansSerifSmall()),
 			font_color("font_color", LLColor4::black),
@@ -103,7 +104,6 @@ public:
 	virtual BOOL			getVisible() const { return TRUE; }
 	virtual void			setWidth(S32 width) { mWidth = width; }
 	virtual void			highlightText(S32 offset, S32 num_chars) {}
-	virtual void			setHighlighted(bool highlighted) {}
 	virtual BOOL			isText() const { return FALSE; }
 	virtual BOOL			needsToolTip() const { return ! mToolTip.empty(); }
 	virtual void			setColor(const LLColor4&) {}
@@ -141,7 +141,6 @@ public:
 	/*virtual*/ const LLSD getValue() const;
 	/*virtual*/ BOOL	getVisible() const;
 	/*virtual*/ void	highlightText(S32 offset, S32 num_chars);
-	/*virtual*/ void	setHighlighted(bool highlighted);
 
 	/*virtual*/ void	setColor(const LLColor4&);
 	/*virtual*/ BOOL	isText() const;
@@ -160,6 +159,7 @@ protected:
 	S32				mTextWidth;
 	const LLFontGL*	mFont;
 	LLColor4		mColor;
+	LLColor4		mHighlightColor;
 	U8				mUseColor;
 	LLFontGL::HAlign mFontAlignment;
 	BOOL			mVisible;
diff --git a/indra/llui/llscrolllistctrl.cpp b/indra/llui/llscrolllistctrl.cpp
index 7e17dd7c8d..94b130e28d 100644
--- a/indra/llui/llscrolllistctrl.cpp
+++ b/indra/llui/llscrolllistctrl.cpp
@@ -115,6 +115,13 @@ struct SortScrollListItem
 // LLScrollListCtrl
 //---------------------------------------------------------------------------
 
+void LLScrollListCtrl::SelectionTypeNames::declareValues()
+{
+    declare("row", LLScrollListCtrl::ROW);
+    declare("cell", LLScrollListCtrl::CELL);
+    declare("header", LLScrollListCtrl::HEADER);
+}
+
 LLScrollListCtrl::Contents::Contents()
 :	columns("column"),
 	rows("row")
@@ -128,6 +135,7 @@ LLScrollListCtrl::Params::Params()
 	has_border("draw_border"),
 	draw_heading("draw_heading"),
 	search_column("search_column", 0),
+	selection_type("selection_type", ROW),
 	sort_column("sort_column", -1),
 	sort_ascending("sort_ascending", true),
 	can_sort("can_sort", true),
@@ -164,6 +172,7 @@ LLScrollListCtrl::LLScrollListCtrl(const LLScrollListCtrl::Params& p)
 	mCommitOnKeyboardMovement(p.commit_on_keyboard_movement),
 	mCommitOnSelectionChange(false),
 	mSelectionChanged(false),
+	mSelectionType(p.selection_type),
 	mNeedsScroll(false),
 	mCanSelect(true),
 	mCanSort(p.can_sort),
@@ -821,7 +830,15 @@ BOOL LLScrollListCtrl::selectFirstItem()
 		{
 			if (!itemp->getSelected())
 			{
-				selectItem(itemp);
+                switch (mSelectionType)
+                {
+                case CELL:
+                    selectItem(itemp, 0);
+                    break;
+                case HEADER:
+                case ROW:
+                    selectItem(itemp, -1);
+                }
 			}
 			success = TRUE;
 			mOriginalSelection = 0;
@@ -880,7 +897,8 @@ BOOL LLScrollListCtrl::selectItemRange( S32 first_index, S32 last_index )
 		{
 			if( itemp->getEnabled() )
 			{
-				selectItem(itemp, FALSE);
+				// TODO: support range selection for cells
+				selectItem(itemp, -1, FALSE);
 				success = TRUE;				
 			}
 		}
@@ -1006,10 +1024,14 @@ void LLScrollListCtrl::clearHighlightedItems()
 
 void LLScrollListCtrl::mouseOverHighlightNthItem(S32 target_index)
 {
-	if (mHighlightedItem != target_index)
-	{
-		mHighlightedItem = target_index;
-	}
+    if (mHighlightedItem != target_index)
+    {
+        if (mHighlightedItem >= 0 && mHighlightedItem < mItemList.size())
+        {
+            mItemList[mHighlightedItem]->setHoverCell(-1);
+        }
+        mHighlightedItem = target_index;
+    }
 }
 
 S32	LLScrollListCtrl::selectMultiple( uuid_vec_t ids )
@@ -1024,7 +1046,8 @@ S32	LLScrollListCtrl::selectMultiple( uuid_vec_t ids )
 		{
 			if (item->getEnabled() && (item->getUUID() == (*iditr)))
 			{
-				selectItem(item,FALSE);
+				// TODO: support multiple selection for cells
+				selectItem(item, -1, FALSE);
 				++count;
 				break;
 			}
@@ -1097,7 +1120,7 @@ void LLScrollListCtrl::selectPrevItem( BOOL extend_selection)
 			{
 				if (prev_item)
 				{
-					selectItem(prev_item, !extend_selection);
+					selectItem(prev_item, cur_item->getSelectedCell(), !extend_selection);
 				}
 				else
 				{
@@ -1141,7 +1164,7 @@ void LLScrollListCtrl::selectNextItem( BOOL extend_selection)
 			{
 				if (next_item)
 				{
-					selectItem(next_item, !extend_selection);
+					selectItem(next_item, cur_item->getSelectedCell(), !extend_selection);
 				}
 				else
 				{
@@ -1212,7 +1235,7 @@ BOOL LLScrollListCtrl::selectItemByLabel(const std::string& label, BOOL case_sen
 	bool found = NULL != item;
 	if(found)
 	{
-		selectItem(item);
+		selectItem(item, -1);
 	}
 
 	if (mCommitOnSelectionChange)
@@ -1280,7 +1303,7 @@ BOOL LLScrollListCtrl::selectItemByPrefix(const LLWString& target, BOOL case_sen
 			BOOL select = cellp ? item->getEnabled() && ('\0' == cellp->getValue().asString()[0]) : FALSE;
 			if (select)
 			{
-				selectItem(item);
+				selectItem(item, -1);
 				found = TRUE;
 				break;
 			}
@@ -1320,7 +1343,7 @@ BOOL LLScrollListCtrl::selectItemByPrefix(const LLWString& target, BOOL case_sen
 				// find offset of matching text (might have leading whitespace)
 				S32 offset = item_label.find(target_trimmed);
 				cellp->highlightText(offset, target_trimmed.size());
-				selectItem(item);
+				selectItem(item, -1);
 				found = TRUE;
 				break;
 			}
@@ -1386,7 +1409,7 @@ BOOL LLScrollListCtrl::setSelectedByValue(const LLSD& value, BOOL selected)
 		{
 			if (selected)
 			{
-				selectItem(item);
+				selectItem(item, -1);
 			}
 			else
 			{
@@ -1466,7 +1489,7 @@ void LLScrollListCtrl::drawItems()
 		
 		S32 max_columns = 0;
 
-		LLColor4 highlight_color = LLColor4::white;
+		LLColor4 highlight_color = LLColor4::white; // ex: text inside cells
 		static LLUICachedControl<F32> type_ahead_timeout ("TypeAheadTimeout", 0);
 		highlight_color.mV[VALPHA] = clamp_rescale(mSearchTimer.getElapsedTimeF32(), type_ahead_timeout * 0.7f, type_ahead_timeout(), 0.4f, 0.f);
 
@@ -1492,7 +1515,8 @@ void LLScrollListCtrl::drawItems()
 			max_columns = llmax(max_columns, item->getNumColumns());
 
 			LLColor4 fg_color;
-			LLColor4 bg_color(LLColor4::transparent);
+			LLColor4 hover_color(LLColor4::transparent);
+			LLColor4 select_color(LLColor4::transparent);
 
 			if( mScrollLines <= line && line < mScrollLines + num_page_lines )
 			{
@@ -1501,44 +1525,44 @@ void LLScrollListCtrl::drawItems()
 				{
 					if(item->getHighlighted())	// if it's highlighted, average the colors
 					{
-						bg_color = lerp(mBgSelectedColor.get(), mHighlightedColor.get(), 0.5f);
+						select_color = lerp(mBgSelectedColor.get(), mHighlightedColor.get(), 0.5f);
 					}
 					else						// otherwise just select-highlight it
 					{
-						bg_color = mBgSelectedColor.get();
+						select_color = mBgSelectedColor.get();
 					}
 
 					fg_color = (item->getEnabled() ? mFgSelectedColor.get() : mFgDisabledColor.get());
 				}
-				else if (mHighlightedItem == line && mCanSelect)
+				if (mHighlightedItem == line && mCanSelect)
 				{
 					if(item->getHighlighted())	// if it's highlighted, average the colors
 					{
-						bg_color = lerp(mHoveredColor.get(), mHighlightedColor.get(), 0.5f);
+						hover_color = lerp(mHoveredColor.get(), mHighlightedColor.get(), 0.5f);
 					}
 					else						// otherwise just hover-highlight it
 					{
-						bg_color = mHoveredColor.get();
+						hover_color = mHoveredColor.get();
 					}
 				}
 				else if (item->getHighlighted())
 				{
-					bg_color = mHighlightedColor.get();
+					hover_color = mHighlightedColor.get();
 				}
 				else 
 				{
 					if (mDrawStripes && (line % 2 == 0) && (max_columns > 1))
 					{
-						bg_color = mBgStripeColor.get();
+						hover_color = mBgStripeColor.get();
 					}
 				}
 
 				if (!item->getEnabled())
 				{
-					bg_color = mBgReadOnlyColor.get();
+					hover_color = mBgReadOnlyColor.get();
 				}
 
-				item->draw(item_rect, fg_color % alpha, bg_color% alpha, highlight_color % alpha, mColumnPadding);
+				item->draw(item_rect, fg_color % alpha, hover_color% alpha, select_color% alpha, highlight_color % alpha, mColumnPadding);
 
 				cur_y -= mLineHeight;
 			}
@@ -1690,7 +1714,7 @@ BOOL LLScrollListCtrl::selectItemAt(S32 x, S32 y, MASK mask)
 			{
 				if (mLastSelected == NULL)
 				{
-					selectItem(hit_item);
+					selectItem(hit_item, getColumnIndexFromOffset(x));
 				}
 				else
 				{
@@ -1714,7 +1738,7 @@ BOOL LLScrollListCtrl::selectItemAt(S32 x, S32 y, MASK mask)
 						LLScrollListItem *item = *itor;
                         if (item == hit_item || item == lastSelected)
 						{
-							selectItem(item, FALSE);
+							selectItem(item, getColumnIndexFromOffset(x), FALSE);
 							selecting = !selecting;
 							if (hit_item == lastSelected)
 							{
@@ -1724,7 +1748,7 @@ BOOL LLScrollListCtrl::selectItemAt(S32 x, S32 y, MASK mask)
 						}
 						if (selecting)
 						{
-							selectItem(item, FALSE);
+							selectItem(item, getColumnIndexFromOffset(x), FALSE);
 						}
 					}
 				}
@@ -1739,7 +1763,7 @@ BOOL LLScrollListCtrl::selectItemAt(S32 x, S32 y, MASK mask)
 				{
 					if(!(mMaxSelectable > 0 && getAllSelected().size() >= mMaxSelectable))
 					{
-						selectItem(hit_item, FALSE);
+						selectItem(hit_item, getColumnIndexFromOffset(x), FALSE);
 					}
 					else
 					{
@@ -1753,12 +1777,12 @@ BOOL LLScrollListCtrl::selectItemAt(S32 x, S32 y, MASK mask)
 			else
 			{
 				deselectAllItems(TRUE);
-				selectItem(hit_item);
+				selectItem(hit_item, getColumnIndexFromOffset(x));
 			}
 		}
 		else
 		{
-			selectItem(hit_item);
+			selectItem(hit_item, getColumnIndexFromOffset(x));
 		}
 
 		selection_changed = mSelectionChanged;
@@ -2126,8 +2150,29 @@ BOOL LLScrollListCtrl::handleHover(S32 x,S32 y,MASK mask)
 	{
 		LLScrollListItem* item = hitItem(x, y);
 		if (item)
-		{
-			mouseOverHighlightNthItem(getItemIndex(item));
+        {
+            mouseOverHighlightNthItem(getItemIndex(item));
+            switch (mSelectionType)
+            {
+            case CELL:
+                item->setHoverCell(getColumnIndexFromOffset(x));
+                break;
+            case HEADER:
+                {
+                    S32 cell = getColumnIndexFromOffset(x);
+                    if (cell > 0)
+                    {
+                        item->setHoverCell(cell);
+                    }
+                    else
+                    {
+                        item->setHoverCell(-1);
+                    }
+                    break;
+                }
+            case ROW:
+                break;
+            }
 		}
 		else
 		{
@@ -2175,6 +2220,52 @@ BOOL LLScrollListCtrl::handleKeyHere(KEY key,MASK mask )
 					handled = TRUE;
 				}
 				break;
+            case KEY_LEFT:
+                if (mAllowKeyboardMovement || hasFocus())
+                {
+                    // TODO: support multi-select
+                    LLScrollListItem *item = getFirstSelected();
+                    S32 cell = item->getSelectedCell();
+                    switch (mSelectionType)
+                    {
+                    case CELL:
+                        if (cell < mColumns.size()) cell++;
+                        break;
+                    case HEADER:
+                        if (cell == -1) cell = 1;
+                        else if (cell > 1 && cell < mColumns.size()) cell++; // skip header
+                        break;
+                    case ROW:
+                        cell = -1;
+                        break;
+                    }
+                    item->setSelectedCell(cell);
+                    handled = TRUE;
+                }
+                break;
+            case KEY_RIGHT:
+                if (mAllowKeyboardMovement || hasFocus())
+                {
+                    // TODO: support multi-select
+                    LLScrollListItem *item = getFirstSelected();
+                    S32 cell = item->getSelectedCell();
+                    switch (mSelectionType)
+                    {
+                    case CELL:
+                        if (cell >= 0) cell--;
+                        break;
+                    case HEADER:
+                        if (cell > 1) cell--;
+                        else if (cell == 1) cell = -1; // skip header
+                        break;
+                    case ROW:
+                        cell = -1;
+                        break;
+                    }
+                    item->setSelectedCell(cell);
+                    handled = TRUE;
+                }
+                break;
 			case KEY_PAGE_UP:
 				if (mAllowKeyboardMovement || hasFocus())
 				{
@@ -2343,7 +2434,7 @@ BOOL LLScrollListCtrl::handleUnicodeCharHere(llwchar uni_char)
 				LLWString item_label = utf8str_to_wstring(cellp->getValue().asString());
 				if (item->getEnabled() && LLStringOps::toLower(item_label[0]) == uni_char)
 				{
-					selectItem(item);
+					selectItem(item, -1);
 					mNeedsScroll = true;
 					cellp->highlightText(0, 1);
 					mSearchTimer.reset();
@@ -2395,7 +2486,7 @@ BOOL LLScrollListCtrl::isRepeatedChars(const LLWString& string) const
 	return TRUE;
 }
 
-void LLScrollListCtrl::selectItem(LLScrollListItem* itemp, BOOL select_single_item)
+void LLScrollListCtrl::selectItem(LLScrollListItem* itemp, S32 cell, BOOL select_single_item)
 {
 	if (!itemp) return;
 
@@ -2414,6 +2505,18 @@ void LLScrollListCtrl::selectItem(LLScrollListItem* itemp, BOOL select_single_it
 			deselectAllItems(TRUE);
 		}
 		itemp->setSelected(TRUE);
+        switch (mSelectionType)
+        {
+        case CELL:
+            itemp->setSelectedCell(cell);
+            break;
+        case HEADER:
+            itemp->setSelectedCell(cell <= 0 ? -1 : cell);
+            break;
+        case ROW:
+            itemp->setSelectedCell(-1);
+            break;
+        }
 		mLastSelected = itemp;
 		mSelectionChanged = true;
 	}
@@ -2674,7 +2777,7 @@ void	LLScrollListCtrl::selectAll()
 		LLScrollListItem *itemp = *iter;
 		if( itemp->getEnabled() )
 		{
-			selectItem(itemp, FALSE);
+			selectItem(itemp, -1, FALSE);
 		}
 	}
 
diff --git a/indra/llui/llscrolllistctrl.h b/indra/llui/llscrolllistctrl.h
index 249d9a6f15..bf1055c8dc 100644
--- a/indra/llui/llscrolllistctrl.h
+++ b/indra/llui/llscrolllistctrl.h
@@ -54,6 +54,18 @@ class LLScrollListCtrl : public LLUICtrl, public LLEditMenuHandler,
 	public LLCtrlListInterface, public LLCtrlScrollInterface
 {
 public:
+    typedef enum e_selection_type
+    {
+        ROW, // default
+        CELL, // does not support multi-selection
+        HEADER, // when pointing to cells in column 0 will highlight whole row, otherwise cell, no multi-select
+    } ESelectionType;
+
+    struct SelectionTypeNames : public LLInitParam::TypeValuesHelper<LLScrollListCtrl::ESelectionType, SelectionTypeNames>
+    {
+        static void declareValues();
+    };
+
 	struct Contents : public LLInitParam::Block<Contents>
 	{
 		Multiple<LLScrollListColumn::Params>	columns;
@@ -99,6 +111,8 @@ public:
 						commit_on_keyboard_movement,
 						mouse_wheel_opaque;
 
+		Optional<ESelectionType, SelectionTypeNames> selection_type;
+
 		// display flags
 		Optional<bool>	has_border,
 						draw_heading,
@@ -430,7 +444,7 @@ private:
 	void            updateLineHeightInsert(LLScrollListItem* item);
 	void			reportInvalidInput();
 	BOOL			isRepeatedChars(const LLWString& string) const;
-	void			selectItem(LLScrollListItem* itemp, BOOL single_select = TRUE);
+	void			selectItem(LLScrollListItem* itemp, S32 cell, BOOL single_select = TRUE);
 	void			deselectItem(LLScrollListItem* itemp);
 	void			commitIfChanged();
 	BOOL			setSort(S32 column, BOOL ascending);
@@ -455,6 +469,7 @@ private:
 	bool			mCommitOnKeyboardMovement;
 	bool			mCommitOnSelectionChange;
 	bool			mSelectionChanged;
+	ESelectionType	mSelectionType;
 	bool			mNeedsScroll;
 	bool			mMouseWheelOpaque;
 	bool			mCanSelect;
diff --git a/indra/llui/llscrolllistitem.cpp b/indra/llui/llscrolllistitem.cpp
index df22c88afb..51c615dd00 100644
--- a/indra/llui/llscrolllistitem.cpp
+++ b/indra/llui/llscrolllistitem.cpp
@@ -40,6 +40,8 @@
 LLScrollListItem::LLScrollListItem( const Params& p )
 :	mSelected(FALSE),
 	mHighlighted(FALSE),
+	mHoverIndex(-1),
+	mSelectedIndex(-1),
 	mEnabled(p.enabled),
 	mUserdata(p.userdata),
 	mItemValue(p.value)
@@ -53,6 +55,28 @@ LLScrollListItem::~LLScrollListItem()
 	mColumns.clear();
 }
 
+void LLScrollListItem::setSelected(BOOL b)
+{
+    mSelected = b;
+    mSelectedIndex = -1;
+}
+
+void LLScrollListItem::setHighlighted(BOOL b)
+{
+    mHighlighted = b;
+    mHoverIndex = -1;
+}
+
+void LLScrollListItem::setHoverCell(S32 cell)
+{
+    mHoverIndex = cell;
+}
+
+void LLScrollListItem::setSelectedCell(S32 cell)
+{
+    mSelectedIndex = cell;
+}
+
 void LLScrollListItem::addColumn(const LLScrollListCell::Params& p)
 {
 	mColumns.push_back(LLScrollListCell::create(p));
@@ -120,12 +144,21 @@ std::string LLScrollListItem::getContentsCSV() const
 }
 
 
-void LLScrollListItem::draw(const LLRect& rect, const LLColor4& fg_color, const LLColor4& bg_color, const LLColor4& highlight_color, S32 column_padding)
+void LLScrollListItem::draw(const LLRect& rect, const LLColor4& fg_color, const LLColor4& hover_color, const LLColor4& select_color, const LLColor4& highlight_color, S32 column_padding)
 {
 	// draw background rect
 	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 	LLRect bg_rect = rect;
-	gl_rect_2d( bg_rect, bg_color );
+    if (mSelectedIndex < 0 && getSelected())
+    {
+        // Whole item is highlighted/selected
+        gl_rect_2d(bg_rect, select_color);
+    }
+    else if (mHoverIndex < 0)
+    {
+        // Whole item is highlighted/selected
+        gl_rect_2d(bg_rect, hover_color);
+    }
 
 	S32 cur_x = rect.mLeft;
 	S32 num_cols = getNumColumns();
@@ -141,6 +174,25 @@ void LLScrollListItem::draw(const LLRect& rect, const LLColor4& fg_color, const
 		{
 			LLUI::translate((F32) cur_x, (F32) rect.mBottom);
 
+            if (mSelectedIndex == cur_col)
+            {
+                // select specific cell
+                LLRect highlight_rect(0,
+                    cell->getHeight(),
+                    cell->getWidth(),
+                    0);
+                gl_rect_2d(highlight_rect, select_color);
+            }
+            else if (mHoverIndex == cur_col)
+            {
+                // highlight specific cell
+                LLRect highlight_rect(0,
+                    cell->getHeight(),
+                    cell->getWidth() ,
+                    0);
+                gl_rect_2d(highlight_rect, hover_color);
+            }
+
 			cell->draw( fg_color, highlight_color );
 		}
 		LLUI::popMatrix();
diff --git a/indra/llui/llscrolllistitem.h b/indra/llui/llscrolllistitem.h
index 13655b5873..d2c3dd7721 100644
--- a/indra/llui/llscrolllistitem.h
+++ b/indra/llui/llscrolllistitem.h
@@ -77,15 +77,21 @@ public:
 
 	virtual ~LLScrollListItem();
 
-	void	setSelected( BOOL b )			{ mSelected = b; }
+	void	setSelected( BOOL b );
 	BOOL	getSelected() const				{ return mSelected; }
 
 	void	setEnabled( BOOL b )			{ mEnabled = b; }
 	BOOL	getEnabled() const 				{ return mEnabled; }
 
-	void	setHighlighted( BOOL b )		{ mHighlighted = b; }
+	void	setHighlighted( BOOL b );
 	BOOL	getHighlighted() const			{ return mHighlighted; }
 
+	void	setSelectedCell( S32 cell );
+	S32		getSelectedCell() const			{ return mSelectedIndex; }
+
+	void	setHoverCell( S32 cell );
+	S32		getHoverCell() const			{ return mHoverIndex; }
+
 	void	setUserdata( void* userdata )	{ mUserdata = userdata; }
 	void*	getUserdata() const 			{ return mUserdata; }
 
@@ -107,14 +113,21 @@ public:
 
 	std::string getContentsCSV() const;
 
-	virtual void draw(const LLRect& rect, const LLColor4& fg_color, const LLColor4& bg_color, const LLColor4& highlight_color, S32 column_padding);
+	virtual void draw(const LLRect& rect,
+					  const LLColor4& fg_color,
+					  const LLColor4& hover_color, // highlight/hover selection of whole item or cell
+					  const LLColor4& select_color, // highlight/hover selection of whole item or cell
+					  const LLColor4& highlight_color, // highlights contents of cells (ex: text)
+					  S32 column_padding);
 
 protected:
 	LLScrollListItem( const Params& );
 
 private:
 	BOOL	mSelected;
-	BOOL	mHighlighted;
+    BOOL	mHighlighted;
+    S32		mHoverIndex;
+	S32		mSelectedIndex;
 	BOOL	mEnabled;
 	void*	mUserdata;
 	LLSD	mItemValue;