320 lines
15 KiB
C#
320 lines
15 KiB
C#
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using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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using UnityEngine.UI.Extensions;
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namespace UnityEditor.UI
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{
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/// <summary>
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/// This script adds the Extensions UI menu options to the Unity Editor.
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/// </summary>
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static internal class ExtensionMenuOptions
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{
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#region Unity Builder section - Do not change unless UI Source (Editor\MenuOptions) changes
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#region Unity Builder properties - Do not change unless UI Source (Editor\MenuOptions) changes
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private const string kUILayerName = "UI";
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private const float kWidth = 160f;
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private const float kThickHeight = 30f;
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private const float kThinHeight = 20f;
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private const string kStandardSpritePath = "UI/Skin/UISprite.psd";
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private const string kBackgroundSpriteResourcePath = "UI/Skin/Background.psd";
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private const string kInputFieldBackgroundPath = "UI/Skin/InputFieldBackground.psd";
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private const string kKnobPath = "UI/Skin/Knob.psd";
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private const string kCheckmarkPath = "UI/Skin/Checkmark.psd";
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private static Vector2 s_ThickGUIElementSize = new Vector2(kWidth, kThickHeight);
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private static Vector2 s_ThinGUIElementSize = new Vector2(kWidth, kThinHeight);
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private static Vector2 s_ImageGUIElementSize = new Vector2(100f, 100f);
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private static Color s_DefaultSelectableColor = new Color(1f, 1f, 1f, 1f);
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#endregion
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#region Unity Builder methods - Do not change unless UI Source (Editor\MenuOptions) changes
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private static void SetPositionVisibleinSceneView(RectTransform canvasRTransform, RectTransform itemTransform)
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{
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// Find the best scene view
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SceneView sceneView = SceneView.lastActiveSceneView;
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if (sceneView == null && SceneView.sceneViews.Count > 0)
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sceneView = SceneView.sceneViews[0] as SceneView;
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// Couldn't find a SceneView. Don't set position.
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if (sceneView == null || sceneView.camera == null)
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return;
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// Create world space Plane from canvas position.
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Vector2 localPlanePosition;
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Camera camera = sceneView.camera;
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Vector3 position = Vector3.zero;
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if (RectTransformUtility.ScreenPointToLocalPointInRectangle(canvasRTransform, new Vector2(camera.pixelWidth / 2, camera.pixelHeight / 2), camera, out localPlanePosition))
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{
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// Adjust for canvas pivot
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localPlanePosition.x = localPlanePosition.x + canvasRTransform.sizeDelta.x * canvasRTransform.pivot.x;
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localPlanePosition.y = localPlanePosition.y + canvasRTransform.sizeDelta.y * canvasRTransform.pivot.y;
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localPlanePosition.x = Mathf.Clamp(localPlanePosition.x, 0, canvasRTransform.sizeDelta.x);
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localPlanePosition.y = Mathf.Clamp(localPlanePosition.y, 0, canvasRTransform.sizeDelta.y);
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// Adjust for anchoring
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position.x = localPlanePosition.x - canvasRTransform.sizeDelta.x * itemTransform.anchorMin.x;
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position.y = localPlanePosition.y - canvasRTransform.sizeDelta.y * itemTransform.anchorMin.y;
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Vector3 minLocalPosition;
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minLocalPosition.x = canvasRTransform.sizeDelta.x * (0 - canvasRTransform.pivot.x) + itemTransform.sizeDelta.x * itemTransform.pivot.x;
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minLocalPosition.y = canvasRTransform.sizeDelta.y * (0 - canvasRTransform.pivot.y) + itemTransform.sizeDelta.y * itemTransform.pivot.y;
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Vector3 maxLocalPosition;
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maxLocalPosition.x = canvasRTransform.sizeDelta.x * (1 - canvasRTransform.pivot.x) - itemTransform.sizeDelta.x * itemTransform.pivot.x;
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maxLocalPosition.y = canvasRTransform.sizeDelta.y * (1 - canvasRTransform.pivot.y) - itemTransform.sizeDelta.y * itemTransform.pivot.y;
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position.x = Mathf.Clamp(position.x, minLocalPosition.x, maxLocalPosition.x);
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position.y = Mathf.Clamp(position.y, minLocalPosition.y, maxLocalPosition.y);
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}
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itemTransform.anchoredPosition = position;
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itemTransform.localRotation = Quaternion.identity;
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itemTransform.localScale = Vector3.one;
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}
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private static GameObject CreateUIElementRoot(string name, MenuCommand menuCommand, Vector2 size)
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{
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GameObject parent = menuCommand.context as GameObject;
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if (parent == null || parent.GetComponentInParent<Canvas>() == null)
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{
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parent = GetOrCreateCanvasGameObject();
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}
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GameObject child = new GameObject(name);
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Undo.RegisterCreatedObjectUndo(child, "Create " + name);
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Undo.SetTransformParent(child.transform, parent.transform, "Parent " + child.name);
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GameObjectUtility.SetParentAndAlign(child, parent);
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RectTransform rectTransform = child.AddComponent<RectTransform>();
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rectTransform.sizeDelta = size;
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if (parent != menuCommand.context) // not a context click, so center in sceneview
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{
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SetPositionVisibleinSceneView(parent.GetComponent<RectTransform>(), rectTransform);
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}
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Selection.activeGameObject = child;
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return child;
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}
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static GameObject CreateUIObject(string name, GameObject parent)
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{
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GameObject go = new GameObject(name);
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go.AddComponent<RectTransform>();
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GameObjectUtility.SetParentAndAlign(go, parent);
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return go;
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}
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[MenuItem("GameObject/UI/Canvas", false, 2009)]
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static public void AddCanvas(MenuCommand menuCommand)
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{
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var go = CreateNewUI();
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GameObjectUtility.SetParentAndAlign(go, menuCommand.context as GameObject);
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if (go.transform.parent as RectTransform)
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{
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RectTransform rect = go.transform as RectTransform;
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rect.anchorMin = Vector2.zero;
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rect.anchorMax = Vector2.one;
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rect.anchoredPosition = Vector2.zero;
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rect.sizeDelta = Vector2.zero;
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}
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Selection.activeGameObject = go;
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}
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static public GameObject CreateNewUI()
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{
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// Root for the UI
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var root = new GameObject("Canvas");
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root.layer = LayerMask.NameToLayer(kUILayerName);
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Canvas canvas = root.AddComponent<Canvas>();
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canvas.renderMode = RenderMode.ScreenSpaceOverlay;
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root.AddComponent<CanvasScaler>();
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root.AddComponent<GraphicRaycaster>();
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Undo.RegisterCreatedObjectUndo(root, "Create " + root.name);
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// if there is no event system add one...
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CreateEventSystem(false);
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return root;
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}
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[MenuItem("GameObject/UI/EventSystem", false, 2010)]
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public static void CreateEventSystem(MenuCommand menuCommand)
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{
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GameObject parent = menuCommand.context as GameObject;
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CreateEventSystem(true, parent);
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}
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private static void CreateEventSystem(bool select)
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{
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CreateEventSystem(select, null);
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}
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private static void CreateEventSystem(bool select, GameObject parent)
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{
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var esys = Object.FindObjectOfType<EventSystem>();
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if (esys == null)
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{
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var eventSystem = new GameObject("EventSystem");
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GameObjectUtility.SetParentAndAlign(eventSystem, parent);
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esys = eventSystem.AddComponent<EventSystem>();
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eventSystem.AddComponent<StandaloneInputModule>();
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eventSystem.AddComponent<TouchInputModule>();
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Undo.RegisterCreatedObjectUndo(eventSystem, "Create " + eventSystem.name);
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}
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if (select && esys != null)
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{
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Selection.activeGameObject = esys.gameObject;
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}
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}
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// Helper function that returns a Canvas GameObject; preferably a parent of the selection, or other existing Canvas.
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static public GameObject GetOrCreateCanvasGameObject()
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{
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GameObject selectedGo = Selection.activeGameObject;
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// Try to find a gameobject that is the selected GO or one if its parents.
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Canvas canvas = (selectedGo != null) ? selectedGo.GetComponentInParent<Canvas>() : null;
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if (canvas != null && canvas.gameObject.activeInHierarchy)
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return canvas.gameObject;
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// No canvas in selection or its parents? Then use just any canvas..
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canvas = Object.FindObjectOfType(typeof(Canvas)) as Canvas;
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if (canvas != null && canvas.gameObject.activeInHierarchy)
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return canvas.gameObject;
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// No canvas in the scene at all? Then create a new one.
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return ExtensionMenuOptions.CreateNewUI();
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}
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private static void SetDefaultColorTransitionValues(Selectable slider)
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{
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ColorBlock colors = slider.colors;
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colors.highlightedColor = new Color(0.882f, 0.882f, 0.882f);
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colors.pressedColor = new Color(0.698f, 0.698f, 0.698f);
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colors.disabledColor = new Color(0.521f, 0.521f, 0.521f);
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}
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#endregion
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#endregion
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#region UI Extensions "Create" Menu items
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[MenuItem("GameObject/UI/Extensions/Horizontal<61>Scroll<6C>Snap", false, 2000)]
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static public void AddHorizontalScrollSnap(MenuCommand menuCommand)
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{
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GameObject horizontalScrollSnapRoot = CreateUIElementRoot("Horizontal Scroll Snap", menuCommand, s_ThickGUIElementSize);
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// Set RectTransform to stretch
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RectTransform rectTransform = horizontalScrollSnapRoot.GetComponent<RectTransform>();
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rectTransform.anchorMin = Vector2.zero;
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rectTransform.anchorMax = Vector2.one;
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rectTransform.anchoredPosition = Vector2.zero;
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rectTransform.sizeDelta = Vector2.zero;
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Image image = horizontalScrollSnapRoot.AddComponent<Image>();
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image.sprite = AssetDatabase.GetBuiltinExtraResource<Sprite>(kBackgroundSpriteResourcePath);
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image.type = Image.Type.Sliced;
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image.color = new Color(1f, 1f, 1f, 0.392f);
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ScrollRect sr = horizontalScrollSnapRoot.AddComponent<ScrollRect>();
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HorizontalScrollSnap HSS = horizontalScrollSnapRoot.AddComponent<HorizontalScrollSnap>();
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Selection.activeGameObject = horizontalScrollSnapRoot;
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}
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[MenuItem("GameObject/UI/Extensions/UI Button", false, 2001)]
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static public void AddUIButton(MenuCommand menuCommand)
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{
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GameObject uiButtonRoot = CreateUIElementRoot("UI Button", menuCommand, s_ThickGUIElementSize);
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GameObject childText = new GameObject("Text");
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GameObjectUtility.SetParentAndAlign(childText, uiButtonRoot);
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Image image = uiButtonRoot.AddComponent<Image>();
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image.sprite = AssetDatabase.GetBuiltinExtraResource<Sprite>(kStandardSpritePath);
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image.type = Image.Type.Sliced;
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image.color = s_DefaultSelectableColor;
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UIButton bt = uiButtonRoot.AddComponent<UIButton>();
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SetDefaultColorTransitionValues(bt);
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Text text = childText.AddComponent<Text>();
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text.text = "Button";
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text.alignment = TextAnchor.MiddleCenter;
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text.color = new Color(0.196f, 0.196f, 0.196f);
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RectTransform textRectTransform = childText.GetComponent<RectTransform>();
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textRectTransform.anchorMin = Vector2.zero;
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textRectTransform.anchorMax = Vector2.one;
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textRectTransform.sizeDelta = Vector2.zero;
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Selection.activeGameObject = uiButtonRoot;
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}
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[MenuItem("GameObject/UI/Extensions/UI Flippable", false, 2003)]
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static public void AddUIFlippableImage(MenuCommand menuCommand)
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{
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GameObject go = CreateUIElementRoot("UI Flippable", menuCommand, s_ImageGUIElementSize);
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go.AddComponent<Image>();
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go.AddComponent<UIFlippable>();
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Selection.activeGameObject = go;
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}
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[MenuItem("GameObject/UI/Extensions/UI Window Base", false, 2004)]
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static public void AddUIWindowBase(MenuCommand menuCommand)
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{
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GameObject go = CreateUIElementRoot("UI Window Base", menuCommand, s_ThickGUIElementSize);
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go.AddComponent<UIWindowBase>();
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Selection.activeGameObject = go;
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}
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[MenuItem("GameObject/UI/Extensions/Accordion/Accordion Group", false, 2002)]
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static public void AddAccordionGroup(MenuCommand menuCommand)
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{
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GameObject go = CreateUIElementRoot("Accordion Group", menuCommand, s_ThickGUIElementSize);
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go.AddComponent<VerticalLayoutGroup>();
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go.AddComponent<ContentSizeFitter>();
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go.AddComponent<ToggleGroup>();
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go.AddComponent<Accordion>();
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Selection.activeGameObject = go;
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}
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[MenuItem("GameObject/UI/Extensions/Accordion/Accordion Element", false, 2002)]
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static public void AddAccordionElement(MenuCommand menuCommand)
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{
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GameObject go = CreateUIElementRoot("Accordion Element", menuCommand, s_ThickGUIElementSize);
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go.AddComponent<LayoutElement>();
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go.AddComponent<AccordionElement>();
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Selection.activeGameObject = go;
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}
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[MenuItem("GameObject/UI/Extensions/ComboBox", false, 2002)]
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static public void AddComboBox(MenuCommand menuCommand)
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{
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GameObject go = CreateUIElementRoot("ComboBox", menuCommand, s_ThickGUIElementSize);
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go.AddComponent<ComboBox>();
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Selection.activeGameObject = go;
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}
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[MenuItem("GameObject/UI/Extensions/Selection Box", false, 2009)]
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static public void AddSelectionBox(MenuCommand menuCommand)
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{
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var go = CreateNewUI();
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go.name = "Selection Box";
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GameObjectUtility.SetParentAndAlign(go, menuCommand.context as GameObject);
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if (go.transform.parent as RectTransform)
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{
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RectTransform rect = go.transform as RectTransform;
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rect.anchorMin = Vector2.zero;
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rect.anchorMax = Vector2.one;
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rect.anchoredPosition = Vector2.zero;
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rect.sizeDelta = Vector2.zero;
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}
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go.AddComponent<SelectionBox>();
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Selection.activeGameObject = go;
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}
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#endregion
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}
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}
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