EXT-2572 partial fix for nearby chat text clipping at the bottom

Fixes 1 pixel of clipping caused by LLScrollContainer.
Text is still clipped by 1 pixel, down from 2.
Added more test text boxes to floater_test_textbox.xml
Reviewed with Leyla.

indra/llui/llscrollcontainer.cpp

@@ -111,7 +111,7 @@ LLScrollContainer::LLScrollContainer(const LLScrollContainer::Params& p)
 	LLView::addChild( mBorder );
 
 	mInnerRect.set( 0, getRect().getHeight(), getRect().getWidth(), 0 );
-	mInnerRect.stretch( -mBorder->getBorderWidth()  );
+	mInnerRect.stretch( -getBorderWidth()  );
 
 	LLRect vertical_scroll_rect = mInnerRect;
 	vertical_scroll_rect.mLeft = vertical_scroll_rect.mRight - scrollbar_size;
@@ -189,7 +189,7 @@ void LLScrollContainer::reshape(S32 width, S32 height,
 	LLUICtrl::reshape( width, height, called_from_parent );
 
 	mInnerRect = getLocalRect();
-	mInnerRect.stretch( -mBorder->getBorderWidth() );
+	mInnerRect.stretch( -getBorderWidth() );
 
 	if (mScrolledView)
 	{
@@ -351,9 +351,9 @@ void LLScrollContainer::calcVisibleSize( S32 *visible_width, S32 *visible_height
 	S32 doc_width = doc_rect.getWidth();
 	S32 doc_height = doc_rect.getHeight();
 
-	S32 border_width = (mBorder->getVisible() ? 2 * mBorder->getBorderWidth() : 0);
-	*visible_width = getRect().getWidth() - border_width;
-	*visible_height = getRect().getHeight() - border_width;
+	S32 border_width = getBorderWidth();
+	*visible_width = getRect().getWidth() - 2 * border_width;
+	*visible_height = getRect().getHeight() - 2 * border_width;
 	
 	*show_v_scrollbar = FALSE;
 	*show_h_scrollbar = FALSE;
@@ -499,7 +499,7 @@ void LLScrollContainer::updateScroll()
 	BOOL show_h_scrollbar = FALSE;
 	calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar );
 
-	S32 border_width = mBorder->getBorderWidth();
+	S32 border_width = getBorderWidth();
 	if( show_v_scrollbar )
 	{
 		if( doc_rect.mTop < getRect().getHeight() - border_width )
@@ -573,6 +573,9 @@ void LLScrollContainer::updateScroll()
 void LLScrollContainer::setBorderVisible(BOOL b)
 {
 	mBorder->setVisible( b );
+	// Recompute inner rect, as border visibility changes it
+	mInnerRect = getLocalRect();
+	mInnerRect.stretch( -getBorderWidth() );
 }
 
 LLRect LLScrollContainer::getVisibleContentRect()
@@ -593,7 +596,7 @@ LLRect LLScrollContainer::getContentWindowRect()
 	BOOL show_h_scrollbar = FALSE;
 	BOOL show_v_scrollbar = FALSE;
 	calcVisibleSize( &visible_width, &visible_height, &show_h_scrollbar, &show_v_scrollbar );
-	S32 border_width = mBorder->getVisible() ? mBorder->getBorderWidth() : 0;
+	S32 border_width = getBorderWidth();
 	scroller_view_rect.setOriginAndSize(border_width, 
 										show_h_scrollbar ? mScrollbar[HORIZONTAL]->getRect().mTop : border_width, 
 										visible_width, 
@@ -626,7 +629,7 @@ void LLScrollContainer::scrollToShowRect(const LLRect& rect, const LLRect& const
 								rect_to_constrain.mTop - constraint.mTop);
 
 	// translate from allowable region for lower left corner to upper left corner
-	allowable_scroll_rect.translate(0, content_window_rect.getHeight() - 1);
+	allowable_scroll_rect.translate(0, content_window_rect.getHeight());
 
 	S32 vert_pos = llclamp(mScrollbar[VERTICAL]->getDocPos(), 
 					mScrollbar[VERTICAL]->getDocSize() - allowable_scroll_rect.mTop, // min vertical scroll
@@ -674,7 +677,7 @@ void LLScrollContainer::goToBottom()
 
 S32 LLScrollContainer::getBorderWidth() const
 {
-	if (mBorder)
+	if (mBorder->getVisible())
 	{
 		return mBorder->getBorderWidth();
 	}

indra/newview/skins/default/xui/en/floater_aaa.xml

@@ -21,7 +21,7 @@
    allow_html="true"
    bg_readonly_color="ChatHistoryBgColor"
    bg_writeable_color="ChatHistoryBgColor"
-   border_visible="true" 
+   border_visible="false" 
    follows="all"
    font="SansSerif" 
 	    left="1"

indra/newview/skins/default/xui/en/floater_test_textbox.xml

@@ -174,6 +174,53 @@ scroll bar
  word_wrap="true">
 Second Life is brought to you by Philip, Tessa, Andrew, Cory, James, Ben, Char, Charlie, Colin, Dan, Daniel, Doug, Eric, Hamlet, Haney, Eve, Hunter, Ian, Jeff, Jennifer, Jim, John, Lee, Mark, Peter, Phoenix, Richard, Robin, Xenon, Steve, Tanya, Eddie, Avi, Frank, Bruce, Aaron, Alice, Bob, Debra, Eileen, Helen, Janet, Louie, Leviathania, Stefan, Ray, Kevin, Tom, Mikeb, MikeT, Burgess, Elena, Tracy, Bill, Todd, Ryan, Zach, Sarah, Nova, Tim, Stephanie, Michael, Evan, Nicolas, Catherine, Rachelle, Dave, Holly, Bub, Kelly, Magellan, Ramzi, Don, Sabin, Jill, Rheya, Jeska, Torley, Kona, Callum, Charity, Ventrella, Jack, Vektor, Iris, Chris, Nicole, Mick, Reuben, Blue, Babbage, Yedwab, Deana, Lauren, Brent, Pathfinder, Chadrick, Altruima, Jesse, Teeny, Monroe, Icculus, David, Tess, Lizzie, Patsy, Isaac, Lawrence, Cyn, Bo, Gia, Annette, Marius, Tbone, Jonathan, Karen, Ginsu, Satoko, Yuko, Makiko, Thomas, Harry, Seth, Alexei, Brian, Guy, Runitai, Ethan, Data, Cornelius, Kenny, Swiss, Zero, Natria, Wendy, Stephen, Teeple, Thumper, Lucy, Dee, Mia, Liana, Warren, Branka, Aura, beez, Milo, Hermia, Red, Thrax, Joe, Sally, Magenta, Mogura, Paul, Jose, Rejean, Henrik, Lexie, Amber, Logan, Xan, Nora, Morpheus, Donovan, Leyla, MichaelFrancis, Beast, Cube, Bucky, Joshua, Stryfe, Harmony, Teresa, Claudia, Walker, Glenn, Fritz, Fordak, June, Cleopetra, Jean, Ivy, Betsy, Roosevelt, Spike, Ken, Which, Tofu, Chiyo, Rob, Zee, dustin, George, Del, Matthew, Cat, Jacqui, Lightfoot, Adrian, Viola, Alfred, Noel, Irfan, Sunil, Yool, Rika, Jane, Xtreme, Frontier, a2, Neo, Siobhan, Yoz, Justin, Elle, Qarl, Benjamin, Isabel, Gulliver, Everett, Christopher, Izzy, Stephany, Garry, Sejong, Sean, Tobin, Iridium, Meta, Anthony, Jeremy, JP, Jake, Maurice, Madhavi, Leopard, Kyle, Joon, Kari, Bert, Belinda, Jon, Kristi, Bridie, Pramod, KJ, Socrates, Maria, Ivan, Aric, Yamasaki, Adreanne, Jay, MitchK, Ceren, Coco, Durl, Jenny, Periapse, Kartic, Storrs, Lotte, Sandy, Rohn, Colossus, Zen, BigPapi, Brad, Pastrami, Kurz, Mani, Neuro, Jaime, MJ, Rowan, Sgt, Elvis, Gecko, Samuel, Sardonyx, Leo, Bryan, Niko, Soft, Poppy, Rachel, Aki, Angelo, Banzai, Alexa, Sue, CeeLo, Bender, CG, Gillian, Pelle, Nick, Echo, Zara, Christine, Shamiran, Emma, Blake, Keiko, Plexus, Joppa, Sidewinder, Erica, Ashlei, Twilight, Kristen, Brett, Q, Enus, Simon, Bevis, Kraft, Kip, Chandler, Ron, LauraP, Ram, KyleJM, Scouse, Prospero, Melissa, Marty, Nat, Hamilton, Kend, Lordan, Jimmy, Kosmo, Seraph, Green, Ekim, Wiggo, JT, Rome, Doris, Miz, Benoc, Whump, Trinity, Patch, Kate, TJ, Bao, Joohwan, Christy, Sofia, Matias, Cogsworth, Johan, Oreh, Cheah, Angela, Brandy, Mango, Lan, Aleks, Gloria, Heidy, Mitchell, Space, Colton, Bambers, Einstein, Maggie, Malbers, Rose, Winnie, Stella, Milton, Rothman, Niall, Marin, Allison, Katie, Dawn, Katt, Dusty, Kalpana, Judy, Andrea, Ambroff, Infinity, Gail, Rico, Raymond, Yi, William, Christa, M, Teagan, Scout, Molly, Dante, Corr, Dynamike, Usi, Kaylee, Vidtuts, Lil, Danica, Sascha, Kelv, Jacob, Nya, Rodney, Brandon, Elsie, Blondin, Grant, Katrin, Nyx, Gabriel, Locklainn, Claire, Devin, Minerva, Monty, Austin, Bradford, Si, Keira, H, Caitlin, Dita, Makai, Jenn, Ann, Meredith, Clare, Joy, Praveen, Cody, Edmund, Ruthe, Sirena, Gayathri, Spider, FJ, Davidoff, Tian, Jennie, Louise, Oskar, Landon, Noelle, Jarv, Ingrid, Al, Sommer, Doc, Aria, Huin, Gray, Lili, Vir, DJ, Yang, T, Simone, Maestro, Scott, Charlene, Quixote, Amanda, Susan, Zed, Anne, Enkidu, Esbee, Joroan, Katelin, Roxie, Tay, Scarlet, Kevin, Johnny, Wolfgang, Andren, Bob, Howard, Merov, Rand, Ray, Michon, Newell, Galen, Dessie, Les and many others.
   </text_editor>
+    <text_editor
+ height="50"
+ follows="top|left|bottom"
+ font="Monospace"
+ left_delta="0"
+ name="monospace_text_editor"
+ tool_tip="text editor"
+ top_pad="10"
+ width="200">
+Text Editor
+with multiple
+lines of text
+and hence a
+scroll bar gjyrrr
+  </text_editor>
+    <text_editor
+      border_visible="true"
+      height="50"
+      follows="top|left|bottom"
+      font="Monospace"
+ left_delta="0"
+ name="monospace_text_editor"
+ tool_tip="text editor"
+ top_pad="10"
+ width="200">
+Text Editor
+with multiple
+lines of text
+and hence a
+scroll bar gjyrrr
+  </text_editor>
+    <text_editor
+ height="50"
+ follows="top|left|bottom"
+ font="SansSerif"
+ left_delta="0"
+ name="sansserif_text_editor"
+ tool_tip="text editor"
+ top_pad="10"
+ width="200">
+Text Editor
+with multiple
+lines of text
+and hence a
+scroll bar gjyrrr
+  </text_editor>
+
   <text
    height="40"
    follows="top|left|bottom"