Fixed and tested HSS & VSS use with Scroll COnflict Manager.

HSS & VSS controls now play nicely together
Added new version of Gradient

--HG--
branch : develop_5.3

Scripts/Controls/TextPic.cs

@@ -133,8 +133,12 @@ namespace UnityEngine.UI.Extensions
                     var go = DefaultControls.CreateImage(resources);
                     go.layer = gameObject.layer;
                     var rt = go.transform as RectTransform;
+
                     if (rt)
                     {
+                        rt.anchorMin = new Vector2(0, 1);
+                        rt.anchorMax = new Vector2(0, 1);
+                        rt.pivot = new Vector2(0.5f, 0.5f);
                         rt.SetParent(rectTransform);
                         rt.localPosition = Vector3.zero;
                         rt.localRotation = Quaternion.identity;
@@ -146,6 +150,7 @@ namespace UnityEngine.UI.Extensions
                 var spriteName = match.Groups[1].Value;
                 //var size = float.Parse(match.Groups[2].Value);
                 var img = m_ImagesPool[m_ImagesVertexIndex.Count - 1];
+
                 if (img.sprite == null || img.sprite.name != spriteName)
                 {
                     // img.sprite = Resources.Load<Sprite>(spriteName);
@@ -181,7 +186,8 @@ namespace UnityEngine.UI.Extensions
                     m_ImagesPool.Remove(m_ImagesPool[i]);
                 }
             }
-            if (culled_ImagesPool.Count > 1) {
+            if (culled_ImagesPool.Count > 1)
+            {
                 clearImages = true;
             }
         }
@@ -195,11 +201,13 @@ namespace UnityEngine.UI.Extensions
             positions.Clear();
 
             UIVertex vert = new UIVertex();
+
             for (var i = 0; i < m_ImagesVertexIndex.Count; i++)
             {
                 var endIndex = m_ImagesVertexIndex[i];
                 var rt = m_ImagesPool[i].rectTransform;
                 var size = rt.sizeDelta;
+
                 if (endIndex < toFill.currentVertCount)
                 {
                     toFill.PopulateUIVertex(ref vert, endIndex);
@@ -207,7 +215,9 @@ namespace UnityEngine.UI.Extensions
 
                     // Erase the lower left corner of the black specks
                     toFill.PopulateUIVertex(ref vert, endIndex - 3);
+
                     var pos = vert.position;
+
                     for (int j = endIndex, m = endIndex - 3; j > m; j--)
                     {
                         toFill.PopulateUIVertex(ref vert, endIndex);
@@ -233,8 +243,10 @@ namespace UnityEngine.UI.Extensions
 
                 // Hyperlink inside the text is added to surround the vertex index coordinate frame
                 toFill.PopulateUIVertex(ref vert, hrefInfo.startIndex);
+
                 var pos = vert.position;
                 var bounds = new Bounds(pos, Vector3.zero);
+
                 for (int i = hrefInfo.startIndex, m = hrefInfo.endIndex; i < m; i++)
                 {
                     if (i >= toFill.currentVertCount)
@@ -311,13 +323,16 @@ namespace UnityEngine.UI.Extensions
                 }
             }
             int count = 0;
+
             foreach (Match match in s_HrefRegex.Matches(fixedString))
             {
                 s_TextBuilder.Append(fixedString.Substring(indexText, match.Index - indexText));
                 s_TextBuilder.Append("<color=" + hyperlinkColor + ">");  // Hyperlink color
 
                 var group = match.Groups[1];
-                if(isCreating_m_HrefInfos) {
+
+                if (isCreating_m_HrefInfos)
+                {
                     var hrefInfo = new HrefInfo
                     {
                         startIndex = s_TextBuilder.Length * 4, // Hyperlinks in text starting vertex indices
@@ -325,8 +340,10 @@ namespace UnityEngine.UI.Extensions
                         name = group.Value
                     };
                     m_HrefInfos.Add(hrefInfo);
-                } else {
+                }
-                    if(m_HrefInfos.Count > 0) {
+                else {
+                    if (m_HrefInfos.Count > 0)
+                    {
                         m_HrefInfos[count].startIndex = s_TextBuilder.Length * 4; // Hyperlinks in text starting vertex indices;
                         m_HrefInfos[count].endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3;
                         count++;
@@ -359,6 +376,7 @@ namespace UnityEngine.UI.Extensions
             foreach (var hrefInfo in m_HrefInfos)
             {
                 var boxes = hrefInfo.boxes;
+
                 for (var i = 0; i < boxes.Count; ++i)
                 {
                     if (boxes[i].Contains(lp))
@@ -388,7 +406,6 @@ namespace UnityEngine.UI.Extensions
 
         public void OnPointerExit(PointerEventData eventData)
         {
-
             //do your stuff when highlighted
             //selected = false;
             if (m_ImagesPool.Count >= 1)
@@ -406,6 +423,7 @@ namespace UnityEngine.UI.Extensions
                 }
             }
         }
+
         public void OnSelect(BaseEventData eventData)
         {
             //do your stuff when selected
@@ -437,9 +455,12 @@ namespace UnityEngine.UI.Extensions
         }
 
         /* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
-        void Update() {
+        void Update()
-            if (clearImages) {
+        {
-                for (int i = 0; i < culled_ImagesPool.Count; i++){
+            if (clearImages)
+            {
+                for (int i = 0; i < culled_ImagesPool.Count; i++)
+                {
                     DestroyImmediate(culled_ImagesPool[i]);
                 }
                 culled_ImagesPool.Clear();
@@ -450,7 +471,8 @@ namespace UnityEngine.UI.Extensions
         }
 
         // Reseting m_HrefInfos array if there is any change in text
-        void Reset_m_HrefInfos () {
+        void Reset_m_HrefInfos()
+        {
             previousText = text;
             m_HrefInfos.Clear();
             isCreating_m_HrefInfos = true;

Scripts/Effects/Gradient2.cs

@@ -0,0 +1,132 @@
+/// Credit Brad Nelson (playemgames - bitbucket)
+/// Modified Gradient effect script from http://answers.unity3d.com/questions/1086415/gradient-text-in-unity-522-basevertexeffect-is-obs.html
+/// <summary>
+/// -Uses Unity's Gradient class to define the color
+/// -Offset is now limited to -1,1
+/// -Multiple color blend modes
+/// 
+/// Remember that the colors are applied per-vertex so if you have multiple points on your gradient where the color changes and there aren't enough vertices, you won't see all of the colors.
+/// </summary>
+using System.Collections.Generic;
+
+namespace UnityEngine.UI.Extensions
+{
+	[AddComponentMenu("UI/Effects/Extensions/Gradient2")]
+	public class Gradient2 : BaseMeshEffect {
+	 [SerializeField]
+	 Type _gradientType;
+
+	 [SerializeField]
+	 Blend _blendMode = Blend.Multiply;
+
+	 [SerializeField]
+	 [Range(-1, 1)]
+	 float _offset = 0f;
+
+	 [SerializeField]
+	 UnityEngine.Gradient _effectGradient = new UnityEngine.Gradient() { colorKeys = new GradientColorKey[] { new GradientColorKey(Color.black, 0), new GradientColorKey(Color.white, 1) } };
+
+	 #region Properties
+	 public Blend BlendMode {
+		 get { return _blendMode; }
+		 set { _blendMode = value; }
+	 }
+
+	 public UnityEngine.Gradient EffectGradient {
+		 get { return _effectGradient; }
+		 set { _effectGradient = value; }
+	 }
+
+	 public Type GradientType {
+		 get { return _gradientType; }
+		 set { _gradientType = value; }
+	 }
+
+	 public float Offset {
+		 get { return _offset; }
+		 set { _offset = value; }
+	 }
+	 #endregion
+
+	 public override void ModifyMesh(VertexHelper helper) {
+		 if(!IsActive() || helper.currentVertCount == 0)
+			 return;
+
+		 List<UIVertex> _vertexList = new List<UIVertex>();
+
+		 helper.GetUIVertexStream(_vertexList);
+
+		 int nCount = _vertexList.Count;
+		 switch(GradientType) {
+			 case Type.Horizontal: {
+					 float left = _vertexList[0].position.x;
+					 float right = _vertexList[0].position.x;
+					 float x = 0f;
+
+					 for(int i = nCount - 1; i >= 1; --i) {
+						 x = _vertexList[i].position.x;
+
+						 if(x > right) right = x;
+						 else if(x < left) left = x;
+					 }
+
+					 float width = 1f / (right - left);
+					 UIVertex vertex = new UIVertex();
+
+					 for(int i = 0; i < helper.currentVertCount; i++) {
+						 helper.PopulateUIVertex(ref vertex, i);
+
+						 vertex.color = BlendColor(vertex.color, EffectGradient.Evaluate((vertex.position.x - left) * width - Offset));
+
+						 helper.SetUIVertex(vertex, i);
+					 }
+				 }
+				 break;
+
+			 case Type.Vertical: {
+					 float bottom = _vertexList[0].position.y;
+					 float top = _vertexList[0].position.y;
+					 float y = 0f;
+
+					 for(int i = nCount - 1; i >= 1; --i) {
+						 y = _vertexList[i].position.y;
+
+						 if(y > top) top = y;
+						 else if(y < bottom) bottom = y;
+					 }
+
+					 float height = 1f / (top - bottom);
+					 UIVertex vertex = new UIVertex();
+
+					 for(int i = 0; i < helper.currentVertCount; i++) {
+						 helper.PopulateUIVertex(ref vertex, i);
+
+						 vertex.color = BlendColor(vertex.color, EffectGradient.Evaluate((vertex.position.y - bottom) * height - Offset));
+
+						 helper.SetUIVertex(vertex, i);
+					 }
+				 }
+				 break;
+		 }
+	 }
+
+	 Color BlendColor(Color colorA, Color colorB) {
+		 switch(BlendMode) {
+			 default: return colorB;
+			 case Blend.Add: return colorA + colorB;
+			 case Blend.Multiply: return colorA * colorB;
+		 }
+	 }
+
+	 public enum Type {
+		 Horizontal,
+		 Vertical
+	 }
+
+	 public enum Blend {
+		 Override,
+		 Add,
+		 Multiply
+	 }
+ }
+}

Scripts/Effects/Gradient2.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 45facfdc6a639f041b007c036dc527b8
+timeCreated: 1479244798
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Scripts/Layout/HorizontalScrollSnap.cs

@@ -55,10 +55,10 @@ namespace UnityEngine.UI.Extensions
         [SerializeField]
         public int StartingScreen = 1;
 
-        [Tooltip("The distance between two pages based on page height, by default 3 times the width of the control")]
+        [Tooltip("The distance between two pages based on page height, by default pages are next to each other")]
         [SerializeField]
-        [Range(0, 8)]
+        [Range(1, 8)]
-        public float PageStep = 0;
+        public float PageStep = 1;
 
         public int CurrentPage
         {
@@ -77,26 +77,19 @@ namespace UnityEngine.UI.Extensions
         public SelectionChangeEndEvent OnSelectionChangeEndEvent { get { return m_OnSelectionChangeEndEvent; } set { m_OnSelectionChangeEndEvent = value; } }
 
         // Use this for initialization
-        void Start()
+        void Awake()
         {
             _scroll_rect = gameObject.GetComponent<ScrollRect>();
 
             if (_scroll_rect.horizontalScrollbar || _scroll_rect.verticalScrollbar)
             {
-                Debug.LogWarning("Warning, using scrollbors with the Scroll Snap controls is not advised as it causes unpredictable results");
+                Debug.LogWarning("Warning, using scrollbars with the Scroll Snap controls is not advised as it causes unpredictable results");
             }
 
             _screensContainer = _scroll_rect.content;
 
             DistributePages();
 
-            _lerp = false;
-            _currentScreen = StartingScreen - 1;
-
-            _scroll_rect.horizontalNormalizedPosition = (float)(_currentScreen) / (_screens - 1);
-
-            ChangeBulletsInfo(_currentScreen);
-
             if (NextButton)
                 NextButton.GetComponent<Button>().onClick.AddListener(() => { NextScreen(); });
 
@@ -104,12 +97,23 @@ namespace UnityEngine.UI.Extensions
                 PrevButton.GetComponent<Button>().onClick.AddListener(() => { PreviousScreen(); });
         }
 
+        void Start()
+        {
+            UpdateChildPositions();
+            _lerp = false;
+            _currentScreen = StartingScreen - 1;
+
+            _scroll_rect.horizontalNormalizedPosition = (float)(_currentScreen) / (_screens - 1);
+
+            ChangeBulletsInfo(_currentScreen);
+        }
+
         void Update()
         {
             if (_lerp)
             {
                 _screensContainer.localPosition = Vector3.Lerp(_screensContainer.localPosition, _lerp_target, transitionSpeed * Time.deltaTime);
-                if (Vector3.Distance(_screensContainer.localPosition, _lerp_target) < 1f)
+                if (Vector3.Distance(_screensContainer.localPosition, _lerp_target) < 0.1f)
                 {
                     _lerp = false;
 
@@ -270,7 +274,10 @@ namespace UnityEngine.UI.Extensions
             _dimension = currentXPosition + _offset * -1;
 
             _screensContainer.GetComponent<RectTransform>().offsetMax = new Vector2(_dimension, 0f);
+        }
 
+        void UpdateChildPositions()
+        {
             _screens = _screensContainer.childCount;
 
             _positions = new System.Collections.Generic.List<Vector3>();

Scripts/Layout/VerticalScrollSnap.cs

@@ -54,10 +54,10 @@ namespace UnityEngine.UI.Extensions
         [SerializeField]
         public int StartingScreen = 1;
 
-        [Tooltip("The distance between two pages based on page height, by default 3 times the width of the control")]
+        [Tooltip("The distance between two pages based on page height, by default pages are next to each other")]
         [SerializeField]
-        [Range(0, 8)]
+        [Range(1, 8)]
-        public float PageStep = 0;
+        public float PageStep = 1;
 
         public int CurrentPage
         {
@@ -76,26 +76,19 @@ namespace UnityEngine.UI.Extensions
         public SelectionChangeEndEvent OnSelectionChangeEndEvent { get { return m_OnSelectionChangeEndEvent; } set { m_OnSelectionChangeEndEvent = value; } }
 
         // Use this for initialization
-        void Start()
+        void Awake()
         {
             _scroll_rect = gameObject.GetComponent<ScrollRect>();
 
             if (_scroll_rect.horizontalScrollbar || _scroll_rect.verticalScrollbar)
             {
-                Debug.LogWarning("Warning, using scrollbors with the Scroll Snap controls is not advised as it causes unpredictable results");
+                Debug.LogWarning("Warning, using scrollbars with the Scroll Snap controls is not advised as it causes unpredictable results");
             }
 
             _screensContainer = _scroll_rect.content;
 
             DistributePages();
 
-            _lerp = false;
-            _currentScreen = StartingScreen - 1;
-
-            _scroll_rect.verticalNormalizedPosition = (float)(_currentScreen) / (float)(_screens - 1);
-
-            ChangeBulletsInfo(_currentScreen);
-
             if (NextButton)
                 NextButton.GetComponent<Button>().onClick.AddListener(() => { NextScreen(); });
 
@@ -103,12 +96,23 @@ namespace UnityEngine.UI.Extensions
                 PrevButton.GetComponent<Button>().onClick.AddListener(() => { PreviousScreen(); });
         }
 
+        void Start()
+        {
+            UpdateChildPositions();
+            _lerp = false;
+            _currentScreen = StartingScreen - 1;
+
+            _scroll_rect.verticalNormalizedPosition = (float)(_currentScreen) / (float)(_screens - 1);
+
+            ChangeBulletsInfo(_currentScreen);
+        }
+
         void Update()
         {
             if (_lerp)
             {
                 _screensContainer.localPosition = Vector3.Lerp(_screensContainer.localPosition, _lerp_target, transitionSpeed * Time.deltaTime);
-                if (Vector3.Distance(_screensContainer.localPosition, _lerp_target) < 1f)
+                if (Vector3.Distance(_screensContainer.localPosition, _lerp_target) < 0.1f)
                 {
                     _lerp = false;
                     EndScreenChange();
@@ -268,7 +272,10 @@ namespace UnityEngine.UI.Extensions
             _dimension = currentYPosition + _offset * -1;
 
             _screensContainer.GetComponent<RectTransform>().offsetMax = new Vector2(0f, _dimension);
+        }
 
+        void UpdateChildPositions()
+        {
             _screens = _screensContainer.childCount;
 
             _positions = new System.Collections.Generic.List<Vector3>();
@@ -283,6 +290,7 @@ namespace UnityEngine.UI.Extensions
             }
         }
 
+
         int GetPageforPosition(Vector3 pos)
         {
             for (int i = 0; i < _positions.Count; i++)
@@ -377,6 +385,7 @@ namespace UnityEngine.UI.Extensions
 
         public void OnEndDrag(PointerEventData eventData)
         {
+            //transform.GetComponent<RectTransform>().pivot = new Vector2(0.5f, 0.5f);
             _startDrag = true;
             if (_scroll_rect.vertical)
             {