com.unity.uiextensions/Scripts/Editor/UIExtensionsMenuOptions.cs

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