Added SliderScrollWheelMultiplier setting.

Affects the direction sliders move from mouse scroll wheel.

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

5 files changed, 48 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
diff --git a/linden/indra/newview/app_settings/settings.xml b/linden/indra/newview/app_settings/settings.xml
index 76183ef..f8594ad 100644
--- a/linden/indra/newview/app_settings/settings.xml
+++ b/linden/indra/newview/app_settings/settings.xml
@@ -9458,6 +9458,17 @@
         <integer>29</integer>
       </array>
     </map>
+    <key>SliderScrollWheelMultiplier</key>
+    <map>
+      <key>Comment</key>
+      <string>Multiplier for the amount the mouse scroll wheel affects slider widgets in the UI. E.g. -1 makes sliders move the opposite way when scrolled.</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>S32</string>
+      <key>Value</key>
+      <integer>1</integer>
+    </map>
     <key>SmallAvatarNames</key>
     <map>
       <key>Comment</key>
diff --git a/linden/indra/newview/llappviewer.cpp b/linden/indra/newview/llappviewer.cpp
index f1c6064..a57050d 100644
--- a/linden/indra/newview/llappviewer.cpp
+++ b/linden/indra/newview/llappviewer.cpp
@@ -146,6 +146,7 @@
 #include "llvovolume.h"
 #include "llflexibleobject.h" 
 #include "llvosurfacepatch.h"
+#include "llslider.h"
 
 // includes for idle() idleShutdown()
 #include "llviewercontrol.h"
@@ -422,6 +423,8 @@ static void settings_to_globals()
         LLHoverView::sShowHoverTips = gSavedSettings.getBOOL("ShowHoverTips");
 
         LLCubeMap::sUseCubeMaps = LLFeatureManager::getInstance()->isFeatureAvailable("RenderCubeMap");
+
+        LLSlider::setScrollWheelMultiplier( gSavedSettings.getS32("SliderScrollWheelMultiplier") );
 }
 
 static void settings_modify()
diff --git a/linden/indra/newview/llviewercontrol.cpp b/linden/indra/newview/llviewercontrol.cpp
index b9db346..08e9d45 100644
--- a/linden/indra/newview/llviewercontrol.cpp
+++ b/linden/indra/newview/llviewercontrol.cpp
@@ -71,6 +71,8 @@
 #include "llvowlsky.h"
 #include "llrender.h"
 #include "llmediamanager.h"
+#include "llslider.h"
+
 
 #ifdef TOGGLE_HACKED_GODLIKE_VIEWER
 BOOL                            gHackGodmode = FALSE;
@@ -462,6 +464,12 @@ bool handleMediaDebugLevelChanged(const LLSD& newvalue)
         return true;
 }
 
+bool handleSliderScrollWheelMultiplierChanged(const LLSD& newvalue)
+{
+        LLSlider::setScrollWheelMultiplier( newvalue.asInteger() );
+        return true;
+}
+
 ////////////////////////////////////////////////////////////////////////////
 
 void settings_setup_listeners()
@@ -592,6 +600,7 @@ void settings_setup_listeners()
         gSavedSettings.getControl("AudioLevelMic")->getSignal()->connect(boost::bind(&handleVoiceClientPrefsChanged, _1));
         gSavedSettings.getControl("LipSyncEnabled")->getSignal()->connect(boost::bind(&handleVoiceClientPrefsChanged, _1));     
         gSavedSettings.getControl("MediaDebugLevel")->getSignal()->connect(boost::bind(&handleMediaDebugLevelChanged, _1));     
+        gSavedSettings.getControl("SliderScrollWheelMultiplier")->getSignal()->connect(boost::bind(&handleSliderScrollWheelMultiplierChanged, _1));     
 
 // [RLVa:KB] - Checked: 2009-08-11 (RLVa-1.0.1h) | Added: RLVa-1.0.1h
         if (gSavedSettings.controlExists(RLV_SETTING_ENABLELEGACYNAMING))