1 files changed, 21 insertions, 9 deletions

diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index db66faef81..3f53fae36c 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -1347,6 +1347,7 @@ LLViewerWindow::LLViewerWindow(
 
 	mDebugText = new LLDebugText(this);
 
+	mWorldViewRectScaled = calcScaledRect(mWorldViewRectRaw, mDisplayScale);
 }
 
 void LLViewerWindow::initGLDefaults()
@@ -1573,7 +1574,8 @@ void LLViewerWindow::initWorldUI()
 	LLPanel* side_tray_container = getRootView()->getChild<LLPanel>("side_tray_container");
 	LLSideTray* sidetrayp = LLSideTray::getInstance();
 	sidetrayp->setShape(side_tray_container->getLocalRect());
-	sidetrayp->setFollowsAll();
+	// don't follow right edge to avoid spurious resizes, since we are using a fixed width layout
+	sidetrayp->setFollows(FOLLOWS_LEFT|FOLLOWS_TOP|FOLLOWS_BOTTOM);
 	side_tray_container->addChild(sidetrayp);
 	side_tray_container->setVisible(FALSE);
 	
@@ -2867,19 +2869,17 @@ void LLViewerWindow::updateWorldViewRect(bool use_full_window)
 
 	if (mWorldViewRectRaw != new_world_rect)
 	{
-		// sending a signal with a new WorldView rect
-		mOnWorldViewRectUpdated(mWorldViewRectRaw, new_world_rect);
-
+		LLRect old_world_rect = mWorldViewRectRaw;
 		mWorldViewRectRaw = new_world_rect;
 		gResizeScreenTexture = TRUE;
 		LLViewerCamera::getInstance()->setViewHeightInPixels( mWorldViewRectRaw.getHeight() );
 		LLViewerCamera::getInstance()->setAspect( getWorldViewAspectRatio() );
 
-		mWorldViewRectScaled = mWorldViewRectRaw;
-		mWorldViewRectScaled.mLeft = llround((F32)mWorldViewRectScaled.mLeft / mDisplayScale.mV[VX]);
-		mWorldViewRectScaled.mRight = llround((F32)mWorldViewRectScaled.mRight / mDisplayScale.mV[VX]);
-		mWorldViewRectScaled.mBottom = llround((F32)mWorldViewRectScaled.mBottom / mDisplayScale.mV[VY]);
-		mWorldViewRectScaled.mTop = llround((F32)mWorldViewRectScaled.mTop / mDisplayScale.mV[VY]);
+		mWorldViewRectScaled = calcScaledRect(mWorldViewRectRaw, mDisplayScale);
+
+		// sending a signal with a new WorldView rect
+		old_world_rect = calcScaledRect(old_world_rect, mDisplayScale);
+		mOnWorldViewRectUpdated(old_world_rect, mWorldViewRectScaled);
 	}
 }
 
@@ -4794,6 +4794,18 @@ void LLViewerWindow::calcDisplayScale()
 	}
 }
 
+//static
+LLRect 	LLViewerWindow::calcScaledRect(const LLRect & rect, const LLVector2& display_scale)
+{
+	LLRect res = rect;
+	res.mLeft = llround((F32)res.mLeft / display_scale.mV[VX]);
+	res.mRight = llround((F32)res.mRight / display_scale.mV[VX]);
+	res.mBottom = llround((F32)res.mBottom / display_scale.mV[VY]);
+	res.mTop = llround((F32)res.mTop / display_scale.mV[VY]);
+
+	return res;
+}
+
 S32 LLViewerWindow::getChatConsoleBottomPad()
 {
 	S32 offset = 0;