3 files changed, 61 insertions, 13 deletions

diff --git a/indra/llinventory/llsettingsbase.h b/indra/llinventory/llsettingsbase.h
index a74579e7a6..beaeac2d04 100644
--- a/indra/llinventory/llsettingsbase.h
+++ b/indra/llinventory/llsettingsbase.h
@@ -244,10 +244,15 @@ public:
 
     inline void setAssetId(LLUUID value)
     {   // note that this skips setLLSD
-        LL_WARNS("LAPRAS") << "Settings asset id set to:{" << value << "}" << LL_ENDL;
         mSettings[SETTING_ASSETID] = value;
     }
 
+    inline void clearAssetId()
+    {
+        if (mSettings.has(SETTING_ASSETID))
+            mSettings.erase(SETTING_ASSETID);
+    }
+
 protected:
 
     LLSettingsBase();
diff --git a/indra/llinventory/llsettingsdaycycle.cpp b/indra/llinventory/llsettingsdaycycle.cpp
index ab01a585c6..a43eae16fe 100644
--- a/indra/llinventory/llsettingsdaycycle.cpp
+++ b/indra/llinventory/llsettingsdaycycle.cpp
@@ -498,6 +498,58 @@ LLSettingsDay::CycleTrack_t &LLSettingsDay::getCycleTrack(S32 track)
     return mDayTracks[track];
 }
 
+bool LLSettingsDay::clearCycleTrack(S32 track)
+{
+    if ((track < 0) || (track >= TRACK_MAX))
+    {
+        LL_WARNS("DAYCYCLE") << "Attempt to clear track (#" << track << ") out of range!" << LL_ENDL;
+        return false;
+    }
+    mDayTracks[track].clear();
+    clearAssetId();
+    setDirtyFlag(true);
+    return true;
+}
+
+bool LLSettingsDay::replaceCycleTrack(S32 track, const CycleTrack_t &source)
+{
+    if (source.empty())
+    {
+        LL_WARNS("DAYCYCLE") << "Attempt to copy an empty track." << LL_ENDL;
+        return false;
+    }
+
+    {
+        LLSettingsBase::ptr_t   first((*source.begin()).second);
+        std::string setting_type = first->getSettingsType();
+
+        if (((setting_type == "water") && (track != 0)) ||
+            ((setting_type == "sky") && (track == 0)))
+        {
+            LL_WARNS("DAYCYCLE") << "Attempt to copy track missmatch" << LL_ENDL;
+            return false;
+        }
+    }
+
+    if (!clearCycleTrack(track))
+        return false;
+
+    mDayTracks[track] = source;
+    return true;
+}
+
+
+bool LLSettingsDay::isTrackEmpty(S32 track) const
+{
+    if ((track < 0) || (track >= TRACK_MAX))
+    {
+        LL_WARNS("DAYCYCLE") << "Attempt to test track (#" << track << ") out of range!" << LL_ENDL;
+        return true;
+    }
+
+    return mDayTracks[track].empty();
+}
+
 //=========================================================================
 void LLSettingsDay::startDayCycle()
 {
@@ -690,17 +742,6 @@ LLSettingsDay::CycleTrack_t::value_type LLSettingsDay::getSettingsNearKeyframe(c
     return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
 }
 
-void LLSettingsDay::clearTrack(S32 track)
-{
-    if ((track < 0) || (track >= TRACK_MAX))
-    {
-        LL_WARNS("DAYCYCLE") << "Attempt to clear track (#" << track << ") out of range!" << LL_ENDL;
-        return;
-    }
-
-    mDayTracks[track].clear();
-}
-
 LLSettingsBase::TrackPosition LLSettingsDay::getUpperBoundFrame(S32 track, const LLSettingsBase::TrackPosition& keyframe)
 {
     return get_wrapping_atafter(mDayTracks[track], keyframe)->first;
diff --git a/indra/llinventory/llsettingsdaycycle.h b/indra/llinventory/llsettingsdaycycle.h
index e2f095aa74..484c59e57f 100644
--- a/indra/llinventory/llsettingsdaycycle.h
+++ b/indra/llinventory/llsettingsdaycycle.h
@@ -103,7 +103,6 @@ public:
     void                        setSettingsAtKeyframe(const LLSettingsBase::ptr_t &settings, const LLSettingsBase::TrackPosition& keyframe, S32 track);
     LLSettingsBase::ptr_t       getSettingsAtKeyframe(const LLSettingsBase::TrackPosition& keyframe, S32 track) const;
     CycleTrack_t::value_type    getSettingsNearKeyframe(const LLSettingsBase::TrackPosition &keyframe, S32 track, F32 fudge) const;
-    void                        clearTrack(S32 track);
 
         //---------------------------------------------------------------------
     void                        startDayCycle();
@@ -116,6 +115,9 @@ public:
 
     void                        setInitialized(bool value = true) { mInitialized = value; }
     CycleTrack_t &              getCycleTrack(S32 track);
+    bool                        clearCycleTrack(S32 track);
+    bool                        replaceCycleTrack(S32 track, const CycleTrack_t &source);
+    bool                        isTrackEmpty(S32 track) const;
 
     virtual validation_list_t   getValidationList() const SETTINGS_OVERRIDE;
     static validation_list_t    validationList();