From e7dfbec8e8634e767d78959941daf71a96e021cf Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 7 Apr 2021 19:10:30 +0800
Subject: =?UTF-8?q?*=E7=A7=BB=E5=8A=A8=E7=9B=AE=E5=BD=95?=
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---
 .../UnityEngine.UI/UI/Core/DefaultControls.cs      | 581 ---------------------
 1 file changed, 581 deletions(-)
 delete mode 100644 Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/DefaultControls.cs

(limited to 'Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/DefaultControls.cs')

diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/DefaultControls.cs b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/DefaultControls.cs
deleted file mode 100644
index a22ff9a..0000000
--- a/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/DefaultControls.cs
+++ /dev/null
@@ -1,581 +0,0 @@
-using UnityEngine;
-using System.Collections.Generic;
-
-namespace UnityEngine.UI
-{
-    public static class DefaultControls
-    {
-        public struct Resources
-        {
-            public Sprite standard;
-            public Sprite background;
-            public Sprite inputField;
-            public Sprite knob;
-            public Sprite checkmark;
-            public Sprite dropdown;
-            public Sprite mask;
-        }
-
-        private const float  kWidth       = 160f;
-        private const float  kThickHeight = 30f;
-        private const float  kThinHeight  = 20f;
-        private static Vector2 s_ThickElementSize       = new Vector2(kWidth, kThickHeight);
-        private static Vector2 s_ThinElementSize        = new Vector2(kWidth, kThinHeight);
-        private static Vector2 s_ImageElementSize       = new Vector2(100f, 100f);
-        private static Color   s_DefaultSelectableColor = new Color(1f, 1f, 1f, 1f);
-        private static Color   s_PanelColor             = new Color(1f, 1f, 1f, 0.392f);
-        private static Color   s_TextColor              = new Color(50f / 255f, 50f / 255f, 50f / 255f, 1f);
-
-        // Helper methods at top
-
-        private static GameObject CreateUIElementRoot(string name, Vector2 size)
-        {
-            GameObject child = new GameObject(name);
-            RectTransform rectTransform = child.AddComponent<RectTransform>();
-            rectTransform.sizeDelta = size;
-            return child;
-        }
-
-        static GameObject CreateUIObject(string name, GameObject parent)
-        {
-            GameObject go = new GameObject(name);
-            go.AddComponent<RectTransform>();
-            SetParentAndAlign(go, parent);
-            return go;
-        }
-
-        private static void SetDefaultTextValues(Text lbl)
-        {
-            // Set text values we want across UI elements in default controls.
-            // Don't set values which are the same as the default values for the Text component,
-            // since there's no point in that, and it's good to keep them as consistent as possible.
-            lbl.color = s_TextColor;
-
-            // Reset() is not called when playing. We still want the default font to be assigned
-            lbl.AssignDefaultFont();
-        }
-
-        private static void SetDefaultColorTransitionValues(Selectable slider)
-        {
-            ColorBlock colors = slider.colors;
-            colors.highlightedColor = new Color(0.882f, 0.882f, 0.882f);
-            colors.pressedColor     = new Color(0.698f, 0.698f, 0.698f);
-            colors.disabledColor    = new Color(0.521f, 0.521f, 0.521f);
-        }
-
-        private static void SetParentAndAlign(GameObject child, GameObject parent)
-        {
-            if (parent == null)
-                return;
-
-            child.transform.SetParent(parent.transform, false);
-            SetLayerRecursively(child, parent.layer);
-        }
-
-        private static void SetLayerRecursively(GameObject go, int layer)
-        {
-            go.layer = layer;
-            Transform t = go.transform;
-            for (int i = 0; i < t.childCount; i++)
-                SetLayerRecursively(t.GetChild(i).gameObject, layer);
-        }
-
-        // Actual controls
-
-        public static GameObject CreatePanel(Resources resources)
-        {
-            GameObject panelRoot = CreateUIElementRoot("Panel", s_ThickElementSize);
-
-            // Set RectTransform to stretch
-            RectTransform rectTransform = panelRoot.GetComponent<RectTransform>();
-            rectTransform.anchorMin = Vector2.zero;
-            rectTransform.anchorMax = Vector2.one;
-            rectTransform.anchoredPosition = Vector2.zero;
-            rectTransform.sizeDelta = Vector2.zero;
-
-            Image image = panelRoot.AddComponent<Image>();
-            image.sprite = resources.background;
-            image.type = Image.Type.Sliced;
-            image.color = s_PanelColor;
-
-            return panelRoot;
-        }
-
-        public static GameObject CreateButton(Resources resources)
-        {
-            GameObject buttonRoot = CreateUIElementRoot("Button", s_ThickElementSize);
-
-            GameObject childText = new GameObject("Text");
-            childText.AddComponent<RectTransform>();
-            SetParentAndAlign(childText, buttonRoot);
-
-            Image image = buttonRoot.AddComponent<Image>();
-            image.sprite = resources.standard;
-            image.type = Image.Type.Sliced;
-            image.color = s_DefaultSelectableColor;
-
-            Button bt = buttonRoot.AddComponent<Button>();
-            SetDefaultColorTransitionValues(bt);
-
-            Text text = childText.AddComponent<Text>();
-            text.text = "Button";
-            text.alignment = TextAnchor.MiddleCenter;
-            SetDefaultTextValues(text);
-
-            RectTransform textRectTransform = childText.GetComponent<RectTransform>();
-            textRectTransform.anchorMin = Vector2.zero;
-            textRectTransform.anchorMax = Vector2.one;
-            textRectTransform.sizeDelta = Vector2.zero;
-
-            return buttonRoot;
-        }
-
-        public static GameObject CreateText(Resources resources)
-        {
-            GameObject go = CreateUIElementRoot("Text", s_ThickElementSize);
-
-            Text lbl = go.AddComponent<Text>();
-            lbl.text = "New Text";
-            SetDefaultTextValues(lbl);
-
-            return go;
-        }
-
-        public static GameObject CreateImage(Resources resources)
-        {
-            GameObject go = CreateUIElementRoot("Image", s_ImageElementSize);
-            go.AddComponent<Image>();
-            return go;
-        }
-
-        public static GameObject CreateRawImage(Resources resources)
-        {
-            GameObject go = CreateUIElementRoot("RawImage", s_ImageElementSize);
-            go.AddComponent<RawImage>();
-            return go;
-        }
-
-        public static GameObject CreateSlider(Resources resources)
-        {
-            // Create GOs Hierarchy
-            GameObject root = CreateUIElementRoot("Slider", s_ThinElementSize);
-
-            GameObject background = CreateUIObject("Background", root);
-            GameObject fillArea = CreateUIObject("Fill Area", root);
-            GameObject fill = CreateUIObject("Fill", fillArea);
-            GameObject handleArea = CreateUIObject("Handle Slide Area", root);
-            GameObject handle = CreateUIObject("Handle", handleArea);
-
-            // Background
-            Image backgroundImage = background.AddComponent<Image>();
-            backgroundImage.sprite = resources.background;
-            backgroundImage.type = Image.Type.Sliced;
-            backgroundImage.color = s_DefaultSelectableColor;
-            RectTransform backgroundRect = background.GetComponent<RectTransform>();
-            backgroundRect.anchorMin = new Vector2(0, 0.25f);
-            backgroundRect.anchorMax = new Vector2(1, 0.75f);
-            backgroundRect.sizeDelta = new Vector2(0, 0);
-
-            // Fill Area
-            RectTransform fillAreaRect = fillArea.GetComponent<RectTransform>();
-            fillAreaRect.anchorMin = new Vector2(0, 0.25f);
-            fillAreaRect.anchorMax = new Vector2(1, 0.75f);
-            fillAreaRect.anchoredPosition = new Vector2(-5, 0);
-            fillAreaRect.sizeDelta = new Vector2(-20, 0);
-
-            // Fill
-            Image fillImage = fill.AddComponent<Image>();
-            fillImage.sprite = resources.standard;
-            fillImage.type = Image.Type.Sliced;
-            fillImage.color = s_DefaultSelectableColor;
-
-            RectTransform fillRect = fill.GetComponent<RectTransform>();
-            fillRect.sizeDelta = new Vector2(10, 0);
-
-            // Handle Area
-            RectTransform handleAreaRect = handleArea.GetComponent<RectTransform>();
-            handleAreaRect.sizeDelta = new Vector2(-20, 0);
-            handleAreaRect.anchorMin = new Vector2(0, 0);
-            handleAreaRect.anchorMax = new Vector2(1, 1);
-
-            // Handle
-            Image handleImage = handle.AddComponent<Image>();
-            handleImage.sprite = resources.knob;
-            handleImage.color = s_DefaultSelectableColor;
-
-            RectTransform handleRect = handle.GetComponent<RectTransform>();
-            handleRect.sizeDelta = new Vector2(20, 0);
-
-            // Setup slider component
-            Slider slider = root.AddComponent<Slider>();
-            slider.fillRect = fill.GetComponent<RectTransform>();
-            slider.handleRect = handle.GetComponent<RectTransform>();
-            slider.targetGraphic = handleImage;
-            slider.direction = Slider.Direction.LeftToRight;
-            SetDefaultColorTransitionValues(slider);
-
-            return root;
-        }
-
-        public static GameObject CreateScrollbar(Resources resources)
-        {
-            // Create GOs Hierarchy
-            GameObject scrollbarRoot = CreateUIElementRoot("Scrollbar", s_ThinElementSize);
-
-            GameObject sliderArea = CreateUIObject("Sliding Area", scrollbarRoot);
-            GameObject handle = CreateUIObject("Handle", sliderArea);
-
-            Image bgImage = scrollbarRoot.AddComponent<Image>();
-            bgImage.sprite = resources.background;
-            bgImage.type = Image.Type.Sliced;
-            bgImage.color = s_DefaultSelectableColor;
-
-            Image handleImage = handle.AddComponent<Image>();
-            handleImage.sprite = resources.standard;
-            handleImage.type = Image.Type.Sliced;
-            handleImage.color = s_DefaultSelectableColor;
-
-            RectTransform sliderAreaRect = sliderArea.GetComponent<RectTransform>();
-            sliderAreaRect.sizeDelta = new Vector2(-20, -20);
-            sliderAreaRect.anchorMin = Vector2.zero;
-            sliderAreaRect.anchorMax = Vector2.one;
-
-            RectTransform handleRect = handle.GetComponent<RectTransform>();
-            handleRect.sizeDelta = new Vector2(20, 20);
-
-            Scrollbar scrollbar = scrollbarRoot.AddComponent<Scrollbar>();
-            scrollbar.handleRect = handleRect;
-            scrollbar.targetGraphic = handleImage;
-            SetDefaultColorTransitionValues(scrollbar);
-
-            return scrollbarRoot;
-        }
-
-        public static GameObject CreateToggle(Resources resources)
-        {
-            // Set up hierarchy
-            GameObject toggleRoot = CreateUIElementRoot("Toggle", s_ThinElementSize);
-
-            GameObject background = CreateUIObject("Background", toggleRoot);
-            GameObject checkmark = CreateUIObject("Checkmark", background);
-            GameObject childLabel = CreateUIObject("Label", toggleRoot);
-
-            // Set up components
-            Toggle toggle = toggleRoot.AddComponent<Toggle>();
-            toggle.isOn = true;
-
-            Image bgImage = background.AddComponent<Image>();
-            bgImage.sprite = resources.standard;
-            bgImage.type = Image.Type.Sliced;
-            bgImage.color = s_DefaultSelectableColor;
-
-            Image checkmarkImage = checkmark.AddComponent<Image>();
-            checkmarkImage.sprite = resources.checkmark;
-
-            Text label = childLabel.AddComponent<Text>();
-            label.text = "Toggle";
-            SetDefaultTextValues(label);
-
-            toggle.graphic = checkmarkImage;
-            toggle.targetGraphic = bgImage;
-            SetDefaultColorTransitionValues(toggle);
-
-            RectTransform bgRect = background.GetComponent<RectTransform>();
-            bgRect.anchorMin        = new Vector2(0f, 1f);
-            bgRect.anchorMax        = new Vector2(0f, 1f);
-            bgRect.anchoredPosition = new Vector2(10f, -10f);
-            bgRect.sizeDelta        = new Vector2(kThinHeight, kThinHeight);
-
-            RectTransform checkmarkRect = checkmark.GetComponent<RectTransform>();
-            checkmarkRect.anchorMin = new Vector2(0.5f, 0.5f);
-            checkmarkRect.anchorMax = new Vector2(0.5f, 0.5f);
-            checkmarkRect.anchoredPosition = Vector2.zero;
-            checkmarkRect.sizeDelta = new Vector2(20f, 20f);
-
-            RectTransform labelRect = childLabel.GetComponent<RectTransform>();
-            labelRect.anchorMin     = new Vector2(0f, 0f);
-            labelRect.anchorMax     = new Vector2(1f, 1f);
-            labelRect.offsetMin     = new Vector2(23f, 1f);
-            labelRect.offsetMax     = new Vector2(-5f, -2f);
-
-            return toggleRoot;
-        }
-
-        public static GameObject CreateInputField(Resources resources)
-        {
-            GameObject root = CreateUIElementRoot("InputField", s_ThickElementSize);
-
-            GameObject childPlaceholder = CreateUIObject("Placeholder", root);
-            GameObject childText = CreateUIObject("Text", root);
-
-            Image image = root.AddComponent<Image>();
-            image.sprite = resources.inputField;
-            image.type = Image.Type.Sliced;
-            image.color = s_DefaultSelectableColor;
-
-            InputField inputField = root.AddComponent<InputField>();
-            SetDefaultColorTransitionValues(inputField);
-
-            Text text = childText.AddComponent<Text>();
-            text.text = "";
-            text.supportRichText = false;
-            SetDefaultTextValues(text);
-
-            Text placeholder = childPlaceholder.AddComponent<Text>();
-            placeholder.text = "Enter text...";
-            placeholder.fontStyle = FontStyle.Italic;
-            // Make placeholder color half as opaque as normal text color.
-            Color placeholderColor = text.color;
-            placeholderColor.a *= 0.5f;
-            placeholder.color = placeholderColor;
-
-            RectTransform textRectTransform = childText.GetComponent<RectTransform>();
-            textRectTransform.anchorMin = Vector2.zero;
-            textRectTransform.anchorMax = Vector2.one;
-            textRectTransform.sizeDelta = Vector2.zero;
-            textRectTransform.offsetMin = new Vector2(10, 6);
-            textRectTransform.offsetMax = new Vector2(-10, -7);
-
-            RectTransform placeholderRectTransform = childPlaceholder.GetComponent<RectTransform>();
-            placeholderRectTransform.anchorMin = Vector2.zero;
-            placeholderRectTransform.anchorMax = Vector2.one;
-            placeholderRectTransform.sizeDelta = Vector2.zero;
-            placeholderRectTransform.offsetMin = new Vector2(10, 6);
-            placeholderRectTransform.offsetMax = new Vector2(-10, -7);
-
-            inputField.textComponent = text;
-            inputField.placeholder = placeholder;
-
-            return root;
-        }
-
-        public static GameObject CreateDropdown(Resources resources)
-        {
-            GameObject root = CreateUIElementRoot("Dropdown", s_ThickElementSize);
-
-            GameObject label = CreateUIObject("Label", root);
-            GameObject arrow = CreateUIObject("Arrow", root);
-            GameObject template = CreateUIObject("Template", root);
-            GameObject viewport = CreateUIObject("Viewport", template);
-            GameObject content = CreateUIObject("Content", viewport);
-            GameObject item = CreateUIObject("Item", content);
-            GameObject itemBackground = CreateUIObject("Item Background", item);
-            GameObject itemCheckmark = CreateUIObject("Item Checkmark", item);
-            GameObject itemLabel = CreateUIObject("Item Label", item);
-
-            // Sub controls.
-
-            GameObject scrollbar = CreateScrollbar(resources);
-            scrollbar.name = "Scrollbar";
-            SetParentAndAlign(scrollbar, template);
-
-            Scrollbar scrollbarScrollbar = scrollbar.GetComponent<Scrollbar>();
-            scrollbarScrollbar.SetDirection(Scrollbar.Direction.BottomToTop, true);
-
-            RectTransform vScrollbarRT = scrollbar.GetComponent<RectTransform>();
-            vScrollbarRT.anchorMin = Vector2.right;
-            vScrollbarRT.anchorMax = Vector2.one;
-            vScrollbarRT.pivot = Vector2.one;
-            vScrollbarRT.sizeDelta = new Vector2(vScrollbarRT.sizeDelta.x, 0);
-
-            // Setup item UI components.
-
-            Text itemLabelText = itemLabel.AddComponent<Text>();
-            SetDefaultTextValues(itemLabelText);
-            itemLabelText.alignment = TextAnchor.MiddleLeft;
-
-            Image itemBackgroundImage = itemBackground.AddComponent<Image>();
-            itemBackgroundImage.color = new Color32(245, 245, 245, 255);
-
-            Image itemCheckmarkImage = itemCheckmark.AddComponent<Image>();
-            itemCheckmarkImage.sprite = resources.checkmark;
-
-            Toggle itemToggle = item.AddComponent<Toggle>();
-            itemToggle.targetGraphic = itemBackgroundImage;
-            itemToggle.graphic = itemCheckmarkImage;
-            itemToggle.isOn = true;
-
-            // Setup template UI components.
-
-            Image templateImage = template.AddComponent<Image>();
-            templateImage.sprite = resources.standard;
-            templateImage.type = Image.Type.Sliced;
-
-            ScrollRect templateScrollRect = template.AddComponent<ScrollRect>();
-            templateScrollRect.content = (RectTransform)content.transform;
-            templateScrollRect.viewport = (RectTransform)viewport.transform;
-            templateScrollRect.horizontal = false;
-            templateScrollRect.movementType = ScrollRect.MovementType.Clamped;
-            templateScrollRect.verticalScrollbar = scrollbarScrollbar;
-            templateScrollRect.verticalScrollbarVisibility = ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport;
-            templateScrollRect.verticalScrollbarSpacing = -3;
-
-            Mask scrollRectMask = viewport.AddComponent<Mask>();
-            scrollRectMask.showMaskGraphic = false;
-
-            Image viewportImage = viewport.AddComponent<Image>();
-            viewportImage.sprite = resources.mask;
-            viewportImage.type = Image.Type.Sliced;
-
-            // Setup dropdown UI components.
-
-            Text labelText = label.AddComponent<Text>();
-            SetDefaultTextValues(labelText);
-            labelText.alignment = TextAnchor.MiddleLeft;
-
-            Image arrowImage = arrow.AddComponent<Image>();
-            arrowImage.sprite = resources.dropdown;
-
-            Image backgroundImage = root.AddComponent<Image>();
-            backgroundImage.sprite = resources.standard;
-            backgroundImage.color = s_DefaultSelectableColor;
-            backgroundImage.type = Image.Type.Sliced;
-
-            Dropdown dropdown = root.AddComponent<Dropdown>();
-            dropdown.targetGraphic = backgroundImage;
-            SetDefaultColorTransitionValues(dropdown);
-            dropdown.template = template.GetComponent<RectTransform>();
-            dropdown.captionText = labelText;
-            dropdown.itemText = itemLabelText;
-
-            // Setting default Item list.
-            itemLabelText.text = "Option A";
-            dropdown.options.Add(new Dropdown.OptionData {text = "Option A"});
-            dropdown.options.Add(new Dropdown.OptionData {text = "Option B"});
-            dropdown.options.Add(new Dropdown.OptionData {text = "Option C"});
-            dropdown.RefreshShownValue();
-
-            // Set up RectTransforms.
-
-            RectTransform labelRT = label.GetComponent<RectTransform>();
-            labelRT.anchorMin           = Vector2.zero;
-            labelRT.anchorMax           = Vector2.one;
-            labelRT.offsetMin           = new Vector2(10, 6);
-            labelRT.offsetMax           = new Vector2(-25, -7);
-
-            RectTransform arrowRT = arrow.GetComponent<RectTransform>();
-            arrowRT.anchorMin           = new Vector2(1, 0.5f);
-            arrowRT.anchorMax           = new Vector2(1, 0.5f);
-            arrowRT.sizeDelta           = new Vector2(20, 20);
-            arrowRT.anchoredPosition    = new Vector2(-15, 0);
-
-            RectTransform templateRT = template.GetComponent<RectTransform>();
-            templateRT.anchorMin        = new Vector2(0, 0);
-            templateRT.anchorMax        = new Vector2(1, 0);
-            templateRT.pivot            = new Vector2(0.5f, 1);
-            templateRT.anchoredPosition = new Vector2(0, 2);
-            templateRT.sizeDelta        = new Vector2(0, 150);
-
-            RectTransform viewportRT = viewport.GetComponent<RectTransform>();
-            viewportRT.anchorMin        = new Vector2(0, 0);
-            viewportRT.anchorMax        = new Vector2(1, 1);
-            viewportRT.sizeDelta        = new Vector2(-18, 0);
-            viewportRT.pivot            = new Vector2(0, 1);
-
-            RectTransform contentRT = content.GetComponent<RectTransform>();
-            contentRT.anchorMin         = new Vector2(0f, 1);
-            contentRT.anchorMax         = new Vector2(1f, 1);
-            contentRT.pivot             = new Vector2(0.5f, 1);
-            contentRT.anchoredPosition  = new Vector2(0, 0);
-            contentRT.sizeDelta         = new Vector2(0, 28);
-
-            RectTransform itemRT = item.GetComponent<RectTransform>();
-            itemRT.anchorMin            = new Vector2(0, 0.5f);
-            itemRT.anchorMax            = new Vector2(1, 0.5f);
-            itemRT.sizeDelta            = new Vector2(0, 20);
-
-            RectTransform itemBackgroundRT = itemBackground.GetComponent<RectTransform>();
-            itemBackgroundRT.anchorMin  = Vector2.zero;
-            itemBackgroundRT.anchorMax  = Vector2.one;
-            itemBackgroundRT.sizeDelta  = Vector2.zero;
-
-            RectTransform itemCheckmarkRT = itemCheckmark.GetComponent<RectTransform>();
-            itemCheckmarkRT.anchorMin   = new Vector2(0, 0.5f);
-            itemCheckmarkRT.anchorMax   = new Vector2(0, 0.5f);
-            itemCheckmarkRT.sizeDelta   = new Vector2(20, 20);
-            itemCheckmarkRT.anchoredPosition = new Vector2(10, 0);
-
-            RectTransform itemLabelRT = itemLabel.GetComponent<RectTransform>();
-            itemLabelRT.anchorMin       = Vector2.zero;
-            itemLabelRT.anchorMax       = Vector2.one;
-            itemLabelRT.offsetMin       = new Vector2(20, 1);
-            itemLabelRT.offsetMax       = new Vector2(-10, -2);
-
-            template.SetActive(false);
-
-            return root;
-        }
-
-        public static GameObject CreateScrollView(Resources resources)
-        {
-            GameObject root = CreateUIElementRoot("Scroll View", new Vector2(200, 200));
-
-            GameObject viewport = CreateUIObject("Viewport", root);
-            GameObject content = CreateUIObject("Content", viewport);
-
-            // Sub controls.
-
-            GameObject hScrollbar = CreateScrollbar(resources);
-            hScrollbar.name = "Scrollbar Horizontal";
-            SetParentAndAlign(hScrollbar, root);
-            RectTransform hScrollbarRT = hScrollbar.GetComponent<RectTransform>();
-            hScrollbarRT.anchorMin = Vector2.zero;
-            hScrollbarRT.anchorMax = Vector2.right;
-            hScrollbarRT.pivot = Vector2.zero;
-            hScrollbarRT.sizeDelta = new Vector2(0, hScrollbarRT.sizeDelta.y);
-
-            GameObject vScrollbar = CreateScrollbar(resources);
-            vScrollbar.name = "Scrollbar Vertical";
-            SetParentAndAlign(vScrollbar, root);
-            vScrollbar.GetComponent<Scrollbar>().SetDirection(Scrollbar.Direction.BottomToTop, true);
-            RectTransform vScrollbarRT = vScrollbar.GetComponent<RectTransform>();
-            vScrollbarRT.anchorMin = Vector2.right;
-            vScrollbarRT.anchorMax = Vector2.one;
-            vScrollbarRT.pivot = Vector2.one;
-            vScrollbarRT.sizeDelta = new Vector2(vScrollbarRT.sizeDelta.x, 0);
-
-            // Setup RectTransforms.
-
-            // Make viewport fill entire scroll view.
-            RectTransform viewportRT = viewport.GetComponent<RectTransform>();
-            viewportRT.anchorMin = Vector2.zero;
-            viewportRT.anchorMax = Vector2.one;
-            viewportRT.sizeDelta = Vector2.zero;
-            viewportRT.pivot = Vector2.up;
-
-            // Make context match viewpoprt width and be somewhat taller.
-            // This will show the vertical scrollbar and not the horizontal one.
-            RectTransform contentRT = content.GetComponent<RectTransform>();
-            contentRT.anchorMin = Vector2.up;
-            contentRT.anchorMax = Vector2.one;
-            contentRT.sizeDelta = new Vector2(0, 300);
-            contentRT.pivot = Vector2.up;
-
-            // Setup UI components.
-
-            ScrollRect scrollRect = root.AddComponent<ScrollRect>();
-            scrollRect.content = contentRT;
-            scrollRect.viewport = viewportRT;
-            scrollRect.horizontalScrollbar = hScrollbar.GetComponent<Scrollbar>();
-            scrollRect.verticalScrollbar = vScrollbar.GetComponent<Scrollbar>();
-            scrollRect.horizontalScrollbarVisibility = ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport;
-            scrollRect.verticalScrollbarVisibility = ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport;
-            scrollRect.horizontalScrollbarSpacing = -3;
-            scrollRect.verticalScrollbarSpacing = -3;
-
-            Image rootImage = root.AddComponent<Image>();
-            rootImage.sprite = resources.background;
-            rootImage.type = Image.Type.Sliced;
-            rootImage.color = s_PanelColor;
-
-            Mask viewportMask = viewport.AddComponent<Mask>();
-            viewportMask.showMaskGraphic = false;
-
-            Image viewportImage = viewport.AddComponent<Image>();
-            viewportImage.sprite = resources.mask;
-            viewportImage.type = Image.Type.Sliced;
-
-            return root;
-        }
-    }
-}
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