Slider widgets can now be controlled with mouse wheel.

(Cherry-picked by Jacek from 334b0b32)

2 files changed, 7 insertions, 0 deletions

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();