Added SliderScrollWheelMultiplier setting.

Affects the direction sliders move from mouse scroll wheel.

Also added LLSlider::getScrollWheelMultiplier() and
LLSlider::setScrollWheelMultiplier().

2 files changed, 25 insertions, 1 deletions

diff --git a/linden/indra/llui/llslider.cpp b/linden/indra/llui/llslider.cpp
index 83b4d65..5c17baa 100644
--- a/linden/indra/llui/llslider.cpp
+++ b/linden/indra/llui/llslider.cpp
@@ -46,6 +46,10 @@ static LLRegisterWidget<LLSlider> r1("slider_bar");
 static LLRegisterWidget<LLSlider> r2("volume_slider");
 
 
+// This is overridden based on user's settings.
+S32 LLSlider::sScrollWheelMultiplier = 1;
+
+
 LLSlider::LLSlider( 
         const std::string& name,
         const LLRect& rect,
@@ -222,12 +226,27 @@ BOOL LLSlider::handleMouseDown(S32 x, S32 y, MASK mask)
         return TRUE;
 }
 
+
+// static
+void LLSlider::setScrollWheelMultiplier( S32 mult )
+{
+        sScrollWheelMultiplier = mult;
+}
+
+// static
+S32 LLSlider::getScrollWheelMultiplier()
+{
+        return sScrollWheelMultiplier;
+}
+
 BOOL LLSlider::handleScrollWheel(S32 x, S32 y, S32 clicks)
 {
-        setValueAndCommit(getValueF32() - ( getIncrement()* (F32)clicks ));
+        S32 mult = LLSlider::getScrollWheelMultiplier();
+        setValueAndCommit(getValueF32() - (getIncrement() * (F32)clicks * mult));
         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 9fc85f2..d558ce2 100644
--- a/linden/indra/llui/llslider.h
+++ b/linden/indra/llui/llslider.h
@@ -56,6 +56,9 @@ public:
         virtual LLXMLNodePtr getXML(bool save_children = true) const;
         static  LLView* fromXML(LLXMLNodePtr node, LLView *parent, class LLUICtrlFactory *factory);
 
+  static void setScrollWheelMultiplier( S32 mult );
+  static S32 getScrollWheelMultiplier();
+
         void                    setValue( F32 value, BOOL from_event = FALSE );
         F32                             getValueF32() const { return mValue; }
 
@@ -107,6 +110,8 @@ private:
         
         void                    (*mMouseDownCallback)(LLUICtrl* ctrl, void* userdata);
         void                    (*mMouseUpCallback)(LLUICtrl* ctrl, void* userdata);
+
+  static S32 sScrollWheelMultiplier;
 };
 
 #endif  // LL_LLSLIDER_H