using System; using System.Collections.Generic; using System.Linq; using UnityEditor.U2D.Sprites; using UnityEditorInternal; using UnityEngine; using UnityEngine.UIElements; namespace UnityEditor._2D.Sprite.Editor { [RequireSpriteDataProvider(typeof(ISecondaryTextureDataProvider), typeof(ITextureDataProvider))] internal class SpriteSecondaryTexturesModule : SpriteEditorModuleBase { private static class Styles { public static readonly string invalidEntriesWarning = L10n.Tr("Invalid secondary Texture entries (without names or Textures) have been removed."); public static readonly string nameUniquenessWarning = L10n.Tr("Every secondary Texture attached to the Sprite must have a unique name."); public static readonly string builtInNameCollisionWarning = L10n.Tr("The names _MainTex and _AlphaTex are reserved for internal use."); public static readonly GUIContent panelTitle = EditorGUIUtility.TrTextContent("Secondary Textures"); public static readonly GUIContent name = EditorGUIUtility.TrTextContent("Name"); public static readonly GUIContent texture = EditorGUIUtility.TrTextContent("Texture"); public const float textFieldDropDownWidth = 18.0f; } ReorderableList m_ReorderableList; Vector2 m_ReorderableListScrollPosition; string[] m_SuggestedNames; private IMGUIContainer m_SecondaryTextureInspectorContainer; internal List secondaryTextureList { get; private set; } public override string moduleName { get { return Styles.panelTitle.text; } } public override bool ApplyRevert(bool apply) { if (apply) { var secondaryTextureDataProvider = spriteEditor.GetDataProvider(); // Remove invalid entries. var validEntries = secondaryTextureList.FindAll(x => (x.name != null && x.name != "" && x.texture != null)); if (validEntries.Count < secondaryTextureList.Count) Debug.Log(Styles.invalidEntriesWarning); secondaryTextureDataProvider.textures = validEntries.ToArray(); } return true; } public override bool CanBeActivated() { var dataProvider = spriteEditor.GetDataProvider(); return dataProvider != null && dataProvider.spriteImportMode != SpriteImportMode.None; } public override void DoPostGUI() { } public void SecondaryTextureReorderableListUI() { using (new EditorGUI.DisabledScope(spriteEditor.editingDisabled)) { var windowDimension = spriteEditor.windowDimension; GUILayout.BeginArea(new Rect(0, 0, 290, 290), Styles.panelTitle, GUI.skin.window); m_ReorderableListScrollPosition = GUILayout.BeginScrollView(m_ReorderableListScrollPosition); m_ReorderableList.DoLayoutList(); GUILayout.EndScrollView(); GUILayout.EndArea(); // Deselect the list item if left click outside the panel area. UnityEngine.Event e = UnityEngine.Event.current; if (e.type == EventType.MouseDown && e.button == 0) { m_ReorderableList.index = -1; OnSelectCallback(m_ReorderableList); spriteEditor.RequestRepaint(); } } } public override void DoMainGUI() { } public override void DoToolbarGUI(Rect drawArea) { } public override void OnModuleActivate() { var secondaryTextureDataProvider = spriteEditor.GetDataProvider(); secondaryTextureList = secondaryTextureDataProvider.textures == null ? new List() : secondaryTextureDataProvider.textures.ToList(); m_ReorderableListScrollPosition = Vector2.zero; m_ReorderableList = new ReorderableList(secondaryTextureList, typeof(SecondarySpriteTexture), false, false, true, true); m_ReorderableList.drawElementCallback = DrawSpriteSecondaryTextureElement; m_ReorderableList.onAddCallback = AddSpriteSecondaryTextureElement; m_ReorderableList.onRemoveCallback = RemoveSpriteSecondaryTextureElement; m_ReorderableList.onCanAddCallback = CanAddSpriteSecondaryTextureElement; m_ReorderableList.elementHeightCallback = (int index) => (EditorGUIUtility.singleLineHeight * 3) + 5; m_ReorderableList.onSelectCallback = OnSelectCallback; spriteEditor.selectedSpriteRect = null; string suggestedNamesPrefs = EditorPrefs.GetString("SecondarySpriteTexturePropertyNames"); if (!string.IsNullOrEmpty(suggestedNamesPrefs)) { m_SuggestedNames = suggestedNamesPrefs.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries); for (int i = 0; i < m_SuggestedNames.Length; ++i) m_SuggestedNames[i] = m_SuggestedNames[i].Trim(); Array.Sort(m_SuggestedNames); } else m_SuggestedNames = null; m_SecondaryTextureInspectorContainer = new IMGUIContainer(SecondaryTextureReorderableListUI) { style = { flexGrow = 0, flexBasis = 1, flexShrink = 0, minWidth = 290, minHeight = 290, bottom = 24, right = 24, position = new StyleEnum(Position.Absolute) }, name = "SecondaryTextureInspector" }; spriteEditor.GetMainVisualContainer().Add(m_SecondaryTextureInspectorContainer); } void OnSelectCallback(ReorderableList list) { // Preview the current selected secondary texture. Texture2D previewTexture = null; int width = 0, height = 0; var textureDataProvider = spriteEditor.GetDataProvider(); if (textureDataProvider != null) { previewTexture = textureDataProvider.previewTexture; textureDataProvider.GetTextureActualWidthAndHeight(out width, out height); } if (m_ReorderableList.index >= 0 && m_ReorderableList.index < secondaryTextureList.Count) previewTexture = secondaryTextureList[m_ReorderableList.index].texture; if (previewTexture != null) spriteEditor.SetPreviewTexture(previewTexture, width, height); } public override void OnModuleDeactivate() { DisplayMainTexture(); if (spriteEditor.GetMainVisualContainer().Contains(m_SecondaryTextureInspectorContainer)) spriteEditor.GetMainVisualContainer().Remove(m_SecondaryTextureInspectorContainer); } void DrawSpriteSecondaryTextureElement(Rect rect, int index, bool isActive, bool isFocused) { bool dataModified = false; float oldLabelWidth = EditorGUIUtility.labelWidth; EditorGUIUtility.labelWidth = 70.0f; SecondarySpriteTexture secondaryTexture = secondaryTextureList[index]; // "Name" text field EditorGUI.BeginChangeCheck(); var r = new Rect(rect.x, rect.y + 5, rect.width - Styles.textFieldDropDownWidth, EditorGUIUtility.singleLineHeight); string newName = EditorGUI.TextField(r, Styles.name, secondaryTexture.name); dataModified = EditorGUI.EndChangeCheck(); // Suggested names if (m_SuggestedNames != null) { var popupRect = new Rect(r.x + r.width, r.y, Styles.textFieldDropDownWidth, EditorGUIUtility.singleLineHeight); EditorGUI.BeginChangeCheck(); int selected = EditorGUI.Popup(popupRect, -1, m_SuggestedNames, EditorStyles.textFieldDropDown); if (EditorGUI.EndChangeCheck()) { newName = m_SuggestedNames[selected]; dataModified = true; } } if (dataModified) { if (!string.IsNullOrEmpty(newName) && newName != secondaryTexture.name && secondaryTextureList.Exists(x => x.name == newName)) Debug.LogWarning(Styles.nameUniquenessWarning); else if (newName == "_MainTex" || newName == "_AlphaTex") Debug.LogWarning(Styles.builtInNameCollisionWarning); else secondaryTexture.name = newName; } // "Texture" object field EditorGUI.BeginChangeCheck(); r.width = rect.width; r.y += EditorGUIUtility.singleLineHeight + 2.0f; secondaryTexture.texture = EditorGUI.ObjectField(r, Styles.texture, secondaryTexture.texture, typeof(Texture2D), false) as Texture2D; dataModified = dataModified || EditorGUI.EndChangeCheck(); if (dataModified) { secondaryTextureList[index] = secondaryTexture; spriteEditor.SetDataModified(); } EditorGUIUtility.labelWidth = oldLabelWidth; } void AddSpriteSecondaryTextureElement(ReorderableList list) { m_ReorderableListScrollPosition += new Vector2(0.0f, list.elementHeightCallback(0)); secondaryTextureList.Add(new SecondarySpriteTexture()); spriteEditor.SetDataModified(); } void RemoveSpriteSecondaryTextureElement(ReorderableList list) { DisplayMainTexture(); secondaryTextureList.RemoveAt(list.index); spriteEditor.SetDataModified(); } bool CanAddSpriteSecondaryTextureElement(ReorderableList list) { return list.count < 8; } void DisplayMainTexture() { ITextureDataProvider textureDataProvider = spriteEditor.GetDataProvider(); if (textureDataProvider != null && textureDataProvider.previewTexture != null) { Texture2D mainTexture = textureDataProvider.previewTexture; int width = 0, height = 0; textureDataProvider.GetTextureActualWidthAndHeight(out width, out height); spriteEditor.SetPreviewTexture(mainTexture, width, height); } } } }