From f4092f2b32308801cf3f034e031ab56b3161c878 Mon Sep 17 00:00:00 2001
From: Richard Nelson <none@none>
Date: Fri, 30 Jul 2010 17:41:41 -0700
Subject: optimizations in button rendering

---
 indra/llui/llbutton.cpp          | 12 +++++++-----
 indra/llui/llbutton.h            |  1 +
 indra/newview/llviewerwindow.cpp | 11 -----------
 3 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/indra/llui/llbutton.cpp b/indra/llui/llbutton.cpp
index aeedf62379..5a4f0515fc 100644
--- a/indra/llui/llbutton.cpp
+++ b/indra/llui/llbutton.cpp
@@ -120,6 +120,7 @@ LLButton::LLButton(const LLButton::Params& p)
 	mFlashing( FALSE ),
 	mCurGlowStrength(0.f),
 	mNeedsHighlight(FALSE),
+	mMouseOver(false),
 	mUnselectedLabel(p.label()),
 	mSelectedLabel(p.label_selected()),
 	mGLFont(p.font),
@@ -504,7 +505,11 @@ void LLButton::onMouseEnter(S32 x, S32 y, MASK mask)
 	LLUICtrl::onMouseEnter(x, y, mask);
 
 	if (isInEnabledChain())
+	{
 		mNeedsHighlight = TRUE;
+	}
+
+	mMouseOver = true;
 }
 
 void LLButton::onMouseLeave(S32 x, S32 y, MASK mask)
@@ -512,6 +517,7 @@ void LLButton::onMouseLeave(S32 x, S32 y, MASK mask)
 	LLUICtrl::onMouseLeave(x, y, mask);
 
 	mNeedsHighlight = FALSE;
+	mMouseOver = true;
 }
 
 void LLButton::setHighlight(bool b)
@@ -565,14 +571,10 @@ void LLButton::draw()
 	}
 
 	// Unselected image assignments
-	S32 local_mouse_x;
-	S32 local_mouse_y;
-	LLUI::getMousePositionLocal(this, &local_mouse_x, &local_mouse_y);
-
 	bool enabled = isInEnabledChain();
 
 	bool pressed = pressed_by_keyboard 
-					|| (hasMouseCapture() && pointInView(local_mouse_x, local_mouse_y))
+					|| (hasMouseCapture() && mMouseOver)
 					|| mForcePressedState;
 	bool selected = getToggleState();
 	
diff --git a/indra/llui/llbutton.h b/indra/llui/llbutton.h
index f4af19b696..5f25084b35 100644
--- a/indra/llui/llbutton.h
+++ b/indra/llui/llbutton.h
@@ -356,6 +356,7 @@ private:
 	BOOL						mCommitOnReturn;
 	BOOL						mFadeWhenDisabled;
 	bool						mForcePressedState;
+	bool						mMouseOver;
 
 	LLFrameTimer				mFlashingTimer;
 };
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 00873a797c..b36af7d95b 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -2482,17 +2482,6 @@ void LLViewerWindow::updateUI()
 	// only update mouse hover set when UI is visible (since we shouldn't send hover events to invisible UI
 	if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI))
 	{
-		// include all ancestors of captor_view as automatically having mouse
-		if (captor_view)
-		{
-			LLView* captor_parent_view = captor_view->getParent();
-			while(captor_parent_view)
-			{
-				mouse_hover_set.insert(captor_parent_view->getHandle());
-				captor_parent_view = captor_parent_view->getParent();
-			}
-		}
-
 		// aggregate visible views that contain mouse cursor in display order
 		LLPopupView::popup_list_t popups = mPopupView->getCurrentPopups();
 
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