Initial commit

Assets/Procedural Worlds/Gaia/Scripts/Editor/TexturePickerEditor.cs

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+using UnityEngine;
+using System.Collections;
+using UnityEditor;
+using System.Collections.Generic;
+using System.IO;
+
+namespace Gaia
+{
+
+    public delegate void ImageSelectedHandler(Texture2D imageName);
+
+    public class TexturePickerEditor : EditorWindow
+    {
+        public List<Texture2D> images = new List<Texture2D>();
+
+        /// <summary>
+        /// A flag to indicate if the editor window has been setup or not.
+        /// </summary>
+        private bool m_isSetup = false;
+
+        private ImageSelectedHandler m_handler;
+
+        #region Setup
+
+        /// <summary>
+        /// Attempts to setup the editor by reading in textures from specified path.
+        /// </summary>
+        /// <param name='path'>
+        /// Path to load images from.
+        /// </param>
+        public void Setup(string path, ImageSelectedHandler functionHandler)
+        {
+            string[] paths = new string[] { path };
+            Setup(paths, functionHandler);
+        } // eo Setup
+
+        /// <summary>
+        /// Attempts to setup the editor by reading in all textures specified
+        /// by the various paths. Supports multiple paths of textures.
+        /// </summary>
+        /// <param name='paths'>
+        /// Paths of textures to read in.
+        /// </param>
+        public void Setup(string[] paths, ImageSelectedHandler functionHandler)
+        {
+            m_isSetup = true;
+            ReadInAllTextures(paths);
+            m_handler = functionHandler;
+        } // eo Setup
+
+        #endregion Setup
+
+        #region GUI
+
+        Vector2 m_scrollPosition = Vector2.zero;
+        void OnGUI()
+        {
+            if (!m_isSetup)
+                return;
+
+            m_scrollPosition = EditorGUILayout.BeginScrollView(m_scrollPosition);
+
+            // create a button for each image loaded in, 4 buttons in width
+            // calls the handler when a new image is selected.
+            int counter = 0;
+            foreach (Texture2D img in images)
+            {
+                if (counter % 4 == 0 || counter == 0)
+                    EditorGUILayout.BeginHorizontal();
+                ++counter;
+
+                if (GUILayout.Button(img, GUILayout.Height(100), GUILayout.Width(100)))
+                {
+                    // tell handler about new image, close selection window
+                    m_handler(img);
+                    EditorWindow.focusedWindow.Close();
+                }
+
+                if (counter % 4 == 0)
+                    EditorGUILayout.EndHorizontal();
+            }
+
+
+            EditorGUILayout.EndScrollView();
+        }
+
+        #endregion GUI
+
+        #region Utility
+
+        /// <summary>
+        /// Reads the in all textures from the paths.
+        /// </summary>
+        /// <param name='paths'>
+        /// The paths to read images from.
+        /// </param>
+        void ReadInAllTextures(string[] paths)
+        {
+            foreach (string path in paths)
+            {
+                string[] allFilesInPath = Directory.GetFiles(path);
+                foreach (string filePath in allFilesInPath)
+                {
+                    Texture2D obj = (Texture2D)AssetDatabase.LoadAssetAtPath(filePath, typeof(Texture2D));
+                    if (obj is Texture2D)
+                    {
+                        images.Add(obj as Texture2D);
+                    }
+                }
+            }
+        }
+
+        #endregion Utility
+    }
+}