From 1e802ab2b4a0f203f910daf892b50fbf6cf4a8b3 Mon Sep 17 00:00:00 2001
From: Armin Weatherwax
Date: Fri, 8 Jan 2010 17:02:56 +0100
Subject: Slider widgets can now be controlled with mouse wheel.

(Cherry-picked by Jacek from 334b0b32)
---
 linden/indra/llui/llslider.cpp | 6 ++++++
 linden/indra/llui/llslider.h   | 1 +
 2 files changed, 7 insertions(+)

(limited to 'linden')

diff --git a/linden/indra/llui/llslider.cpp b/linden/indra/llui/llslider.cpp
index 7b4da9b..83b4d65 100644
--- a/linden/indra/llui/llslider.cpp
+++ b/linden/indra/llui/llslider.cpp
@@ -222,6 +222,12 @@ BOOL LLSlider::handleMouseDown(S32 x, S32 y, MASK mask)
 	return TRUE;
 }
 
+BOOL LLSlider::handleScrollWheel(S32 x, S32 y, S32 clicks)
+{
+	setValueAndCommit(getValueF32() - ( getIncrement()* (F32)clicks ));
+	return TRUE;
+}
+
 BOOL LLSlider::handleKeyHere(KEY key, MASK mask)
 {
 	BOOL handled = FALSE;
diff --git a/linden/indra/llui/llslider.h b/linden/indra/llui/llslider.h
index 154685f..9fc85f2 100644
--- a/linden/indra/llui/llslider.h
+++ b/linden/indra/llui/llslider.h
@@ -78,6 +78,7 @@ public:
 	virtual BOOL	handleHover(S32 x, S32 y, MASK mask);
 	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
 	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
+	virtual BOOL	handleScrollWheel(S32 x, S32 y, S32 clicks);
 	virtual BOOL	handleKeyHere(KEY key, MASK mask);
 	virtual void	draw();
 
-- 
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