Add ToolTip functionality to LLScrollListCell

This change enables a user to set a custom tool tip on a particular
scroll list cell by calling setToolTip().  Then, this tool tip is
used.  If this is not done, the existing tooltip functionality is left
alone.

Reviewed by Richard

1 files changed, 18 insertions, 3 deletions

diff --git a/indra/llui/llscrolllistcell.cpp b/indra/llui/llscrolllistcell.cpp
index a7c268758a..9f169ac777 100644
--- a/indra/llui/llscrolllistcell.cpp
+++ b/indra/llui/llscrolllistcell.cpp
@@ -71,7 +71,7 @@ LLScrollListCell* LLScrollListCell::create(const LLScrollListCell::Params& cell_
 
 
 LLScrollListCell::LLScrollListCell(const LLScrollListCell::Params& p)
-:	mWidth(p.width)
+:	mWidth(p.width), mToolTip(p.tool_tip)
 {}
 
 // virtual
@@ -204,13 +204,28 @@ BOOL LLScrollListText::isText() const
 	return TRUE;
 }
 
+// virtual
+const std::string &LLScrollListText::getToolTip() const
+{
+	// If base class has a tooltip, return that
+	if (! LLScrollListCell::getToolTip().empty())
+		return LLScrollListCell::getToolTip();
+	
+	// ...otherwise, return the value itself as the tooltip
+	return mText.getString();
+}
+
+// virtual
 BOOL LLScrollListText::needsToolTip() const
 {
-	// show tooltips for truncated text
+	// If base class has a tooltip, return that
+	if (LLScrollListCell::needsToolTip())
+		return LLScrollListCell::needsToolTip();
+	
+	// ...otherwise, show tooltips for truncated text
 	return mFont->getWidth(mText.getString()) > getWidth();
 }
 
-
 //virtual 
 BOOL LLScrollListText::getVisible() const
 {